Kanda Wongwailikhit - Academia.edu (original) (raw)
Papers by Kanda Wongwailikhit
MATEC Web of Conferences
The attempts to manipulate ruthenium nanoparticle by the passivation of π bonds linkage is of int... more The attempts to manipulate ruthenium nanoparticle by the passivation of π bonds linkage is of interest for many years. That is the way to enhance its optical properties and fluorescence characteristics which can promote the usage for sensor application. Other view, the usage of carbon nanoparticle is governed in many aspects including its fluorescence properties. Therefore, the combination between those two valued nanoparticles was set by conducting the simple synthesis method. With the as-prepared carbon nanoparticles, all other reagents (ruthenium (III) chloride, octyne and Sodium borohydride) were mixed in the same batch. The ratio of carbon substrate, ruthenium (III) chloride and octyne was 10: 1: 3. The particle yielded was then purified and subjected to characterize using some spectroscopy techniques including photoluminescence. The results showed that size of carbon particle before and after ruthenium deposition were 5.0 and 6.3 nanometers, respectively. Octyne was coordinated self-assembly on the ruthenium surface which was 8.1 nanometers in diameter. Moreover, octyne-protected ruthenium on carbon nanoparticles showed the remarkably increasing of fluorescence Intensity. Therefore, the functionalization of carbon nanoparticle with octyne-ruthenium can be a promising strategy to develop a novel complex of ruthenium.
![Research paper thumbnail of Cloud Point Extraction of Gold[III] Ion Using Nonionic Surfactant PONPE-9](https://attachments.academia-assets.com/69226821/thumbnails/1.jpg)
](The accuracy of the Content should not be relied upon and should be independently verified with p... more The accuracy of the Content should not be relied upon and should be independently verified with primary sources of information. Taylor and Francis shall not be liable for any losses, actions, claims, proceedings, demands, costs, expenses, damages, and other liabilities whatsoever or howsoever caused arising directly or indirectly in connection with, in relation to or arising out of the use of the Content. This article may be used for research, teaching, and private study purposes. Any substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any form to anyone is expressly forbidden.
The Journal of Physical Chemistry B, Feb 1, 2007
The concentration vs composition diagram of aggregate formation of the dodecyltrimethylammonium b... more The concentration vs composition diagram of aggregate formation of the dodecyltrimethylammonium bromide (DTAB) and didodecyldimethylammonium bromide (DDAB) mixture in aqueous solution at rather dilute region was constructed by analyzing the surface tension, turbidity, and electrical conductivity data and inspected by cryo-TEM images and dynamic light scattering data. Although the aqueous solution of DTAB forms only micelles, the transition from monomer to small aggregates and then to vesicle was found at 0.1 < X 2 e1, where X 2 is the mole fraction of DDAB in the DTAB-DDAB mixture, while vesicle particles were formed directly from monomer solution at 0 < X 2 < 0.1. Furthermore, the transition from vesicle to micelle was found at 0 < X 2 < 0.4 at higher concentrations. An addition of DTAB to DDAB solution lowered considerably the DDAB concentration of the vesicle formation, which is attributable to asymmetric distribution of DTAB molecules between inner and outer monolayers of the vesicle bilayer. The shape and size of aggregates were obtained from surface tension, cryo-TEM, and light scattering data.
![Research paper thumbnail of Cloud Point Extraction of Gold[III] Ion Using Nonionic Surfactant PONPE-9](https://attachments.academia-assets.com/42579212/thumbnails/1.jpg)
](Extraction as a means fof material recovery is an economical utilization of natural resource.An i... more Extraction as a means fof material recovery is an economical utilization of natural resource.An investigation into efficient extraction technique,less expensive and reusable working substance and minimal energy consumotion is direction of this research. Cloud point extraction [CPE] is a novel technology with an adventage of being applicable at room temperature. The medium is an aqueous solution of friendly organic capable of high selectivity. Nonionic surfactant with ethylene oxide as hydrophilic group exhibits cloud point phenomena as a result of less hydration of ethylene oxide units at elevated temperature with subsequent decrease in aqueous solubility . This phenomena is called the cloud point (CP) .On standing temperature above CP , the surfactant will be separated from the aqueous phase and moving down to the bottom of container. The surfactant solution containing solute which has an affinity for the surfactant will be separated out in surfactant rich phase via cloud-point ext...
Applied Thermal Engineering, 2014
ABSTRACT The objective of this study was to develop a mathematical model of the mass transfer in ... more ABSTRACT The objective of this study was to develop a mathematical model of the mass transfer in a modified brewery tank for producing fuel ethanol. To reduce fossil fuel consumption, 50 flat-plate solar collectors were used as the heat source for the two stages of a distillation process for increasing the ethanol concentration. A 350-L distillation tank with 10%v/v (Stage 1) and a 70-L distillation tank with 40%v/v (Stage 2) were employed in the experiment used to develop the mathematical model of the mass transfer. A difference of approximately 10% was observed between the model predictions and the experimental results of the distillation product of Stage 1, whereas the predicted concentration was approximately 30% higher than that of the experiment, although this was reduced to approximately 5% by homogeneous mixing of the solution. Regarding the distillation process of Stage 2, there was approximately 10% difference between the predicted and experimental products, and approximately 3% difference between the predicted and experimental concentrations. The differences are attributed to errors in the heat transfer rate prediction of the model, which varies directly with the solar radiation values.
Energy Conversion and Management, 2015
In this article, models for the management of the ethanol waste of a solar ethanol distillation s... more In this article, models for the management of the ethanol waste of a solar ethanol distillation system prototype have been proposed. The solar distillation system operates as a batch operation and consists of three stages of distillation, which increase the ethanol concentration from 8% to 80% (v/v). In each distillation stage, various volumes of ethanol solutions with different concentrations were obtained; three reuse scenarios (1, 2, and 3) have been proposed for extracting the ethanol solution from the distillation tank in order to increase the overall efficiency of the ethanol distillation system and reduce the amount of materials (cassava broth) fed into the distillation system. The most efficient distillation process, in terms of the final product volume and ethanol concentration in the product, was realized by using scenario 3, which involved recycling a mixture of the waste from the first stage and the second stage, for redistillation in the first stage and returning the waste obtained from the third stage for redistillation in the second stage than in scenarios 2 and 1 under the same condition, both quantitatively and qualitatively. In addition, by using scenario 3 for managing the ethanol waste, the amount of feedstock (cassava broth) annually fed to the system in the first stage could be reduced by 88-92% (96,522-100,073 L/year), compared to using the other two scenarios. Compared to a distillation process without recycling, the amount of cassava broth fed to the system can be reduced by over 180,000 L/year by using scenario 3.
The Journal of Physical Chemistry B, 2001
The temperature effect on the adsorption at air/water interface and micelle formation of poly(eth... more The temperature effect on the adsorption at air/water interface and micelle formation of poly(ethylene glycol) monoalkyl ether (C i E j ) nonionic surfactant was investigated on the basis of the thermodynamic strategy. From the results of surface tension experiments and after applying the thermodynamic treatment, surface density and thermodynamic quantity changes associated with the adsorption and micelle formation were obtained. It has been found that the entropy of adsorption from monomeric state of C i E j is positive and depend on both concentration and temperature in the same trend; the entropy increases with increasing adsorption of surfactant and increasing temperature. This phenomenon is against that of ionic surfactant. The difference was analyzed in term of the competition between the dehydration effect and the orientation effect. For C i E j nonionic surfactant systems, the large amount of dehydration at high temperature dominates the controversial results of surface density and entropy changes. Moreover, the effect of hydrophobic chain length on the surface adsorption and micelle formation was included in this study using three C i E 5 's with i ) 8, 10, and 12. Those gave outstanding aspects with respect to the thermodynamic property changes.
Separation Science and Technology, 2003
Poly(oxyethylene)-9-nonylphenyl ether (PONPE-9) was employed for cloud point extraction of gold(I... more Poly(oxyethylene)-9-nonylphenyl ether (PONPE-9) was employed for cloud point extraction of gold(III) ion and its phase separation behavior under different experimental conditions was evaluated. The effect on extraction efficiency, including equilibration time, ratio of PONPE-9 to gold, settling temperature, and pH of the solution, was demonstrated. The results indicate that PONPE-9 can be utilized for the extraction of gold in a manner akin to previous work using PONPE-7.5. The optimum experimental results obtained were applied to design a process scheme, pH switching via CPE, to overcome the drawback of the difficulty of separating gold from a gold-entrapped surfactant. The utility of the proposed scheme was demonstrated through the application of recovering gold(III) ion from a multimetal solution. Recoveries of greater than 63% of gold were obtained. Even if this is not so high a percentage recovery, it indicates the feasibility of the process scheme. On the other hand, it proved to be an even simpler and easy method for recovering gold from the leaching solution of printed substrates without spending harmful organic solvent.
Materials Letters, 2011
This article appeared in a journal published by Elsevier. The attached copy is furnished to the a... more This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.
Colloid & Polymer Science, 2002
ABSTRACT A thermodynamic method was employed to analyze the surface tension data for studying the... more ABSTRACT A thermodynamic method was employed to analyze the surface tension data for studying the adsorption at the interface and micelle formation of an aqueous solution of polyoxyethylene nonyl phenyl ether having an average of nine oxyethylene units (PONPE-9) and that of PONPE-9 and gold (III) ion mixtures at pH 3, 7, and 10. The results suggested the existence of attractive interaction between PONPE-9 and gold in the adsorbed film and micelle and that the interaction strength decreases in the order pH 3, pH 10, and pH 7. This result was in accord with the percent extraction of gold obtained from the cloud point extraction method where the efficiency relies on the strength of the interaction between analytes and the surfactant. Thus, this study confirmed the usefulness of the thermodynamic equations developed.
The Journal of Physical Chemistry B, 2007
The concentration vs composition diagram of aggregate formation of the dodecyltrimethylammonium b... more The concentration vs composition diagram of aggregate formation of the dodecyltrimethylammonium bromide (DTAB) and didodecyldimethylammonium bromide (DDAB) mixture in aqueous solution at rather dilute region was constructed by analyzing the surface tension, turbidity, and electrical conductivity data and inspected by cryo-TEM images and dynamic light scattering data. Although the aqueous solution of DTAB forms only micelles, the transition from monomer to small aggregates and then to vesicle was found at 0.1 &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; X2 &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt;or=1, where X2 is the mole fraction of DDAB in the DTAB-DDAB mixture, while vesicle particles were formed directly from monomer solution at 0 &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; X2 &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.1. Furthermore, the transition from vesicle to micelle was found at 0 &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; X2 &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.4 at higher concentrations. An addition of DTAB to DDAB solution lowered considerably the DDAB concentration of the vesicle formation, which is attributable to asymmetric distribution of DTAB molecules between inner and outer monolayers of the vesicle bilayer. The shape and size of aggregates were obtained from surface tension, cryo-TEM, and light scattering data.
MATEC Web of Conferences
The attempts to manipulate ruthenium nanoparticle by the passivation of π bonds linkage is of int... more The attempts to manipulate ruthenium nanoparticle by the passivation of π bonds linkage is of interest for many years. That is the way to enhance its optical properties and fluorescence characteristics which can promote the usage for sensor application. Other view, the usage of carbon nanoparticle is governed in many aspects including its fluorescence properties. Therefore, the combination between those two valued nanoparticles was set by conducting the simple synthesis method. With the as-prepared carbon nanoparticles, all other reagents (ruthenium (III) chloride, octyne and Sodium borohydride) were mixed in the same batch. The ratio of carbon substrate, ruthenium (III) chloride and octyne was 10: 1: 3. The particle yielded was then purified and subjected to characterize using some spectroscopy techniques including photoluminescence. The results showed that size of carbon particle before and after ruthenium deposition were 5.0 and 6.3 nanometers, respectively. Octyne was coordinated self-assembly on the ruthenium surface which was 8.1 nanometers in diameter. Moreover, octyne-protected ruthenium on carbon nanoparticles showed the remarkably increasing of fluorescence Intensity. Therefore, the functionalization of carbon nanoparticle with octyne-ruthenium can be a promising strategy to develop a novel complex of ruthenium.
The accuracy of the Content should not be relied upon and should be independently verified with p... more The accuracy of the Content should not be relied upon and should be independently verified with primary sources of information. Taylor and Francis shall not be liable for any losses, actions, claims, proceedings, demands, costs, expenses, damages, and other liabilities whatsoever or howsoever caused arising directly or indirectly in connection with, in relation to or arising out of the use of the Content. This article may be used for research, teaching, and private study purposes. Any substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any form to anyone is expressly forbidden.
The Journal of Physical Chemistry B, Feb 1, 2007
The concentration vs composition diagram of aggregate formation of the dodecyltrimethylammonium b... more The concentration vs composition diagram of aggregate formation of the dodecyltrimethylammonium bromide (DTAB) and didodecyldimethylammonium bromide (DDAB) mixture in aqueous solution at rather dilute region was constructed by analyzing the surface tension, turbidity, and electrical conductivity data and inspected by cryo-TEM images and dynamic light scattering data. Although the aqueous solution of DTAB forms only micelles, the transition from monomer to small aggregates and then to vesicle was found at 0.1 < X 2 e1, where X 2 is the mole fraction of DDAB in the DTAB-DDAB mixture, while vesicle particles were formed directly from monomer solution at 0 < X 2 < 0.1. Furthermore, the transition from vesicle to micelle was found at 0 < X 2 < 0.4 at higher concentrations. An addition of DTAB to DDAB solution lowered considerably the DDAB concentration of the vesicle formation, which is attributable to asymmetric distribution of DTAB molecules between inner and outer monolayers of the vesicle bilayer. The shape and size of aggregates were obtained from surface tension, cryo-TEM, and light scattering data.
Extraction as a means fof material recovery is an economical utilization of natural resource.An i... more Extraction as a means fof material recovery is an economical utilization of natural resource.An investigation into efficient extraction technique,less expensive and reusable working substance and minimal energy consumotion is direction of this research. Cloud point extraction [CPE] is a novel technology with an adventage of being applicable at room temperature. The medium is an aqueous solution of friendly organic capable of high selectivity. Nonionic surfactant with ethylene oxide as hydrophilic group exhibits cloud point phenomena as a result of less hydration of ethylene oxide units at elevated temperature with subsequent decrease in aqueous solubility . This phenomena is called the cloud point (CP) .On standing temperature above CP , the surfactant will be separated from the aqueous phase and moving down to the bottom of container. The surfactant solution containing solute which has an affinity for the surfactant will be separated out in surfactant rich phase via cloud-point ext...
Applied Thermal Engineering, 2014
ABSTRACT The objective of this study was to develop a mathematical model of the mass transfer in ... more ABSTRACT The objective of this study was to develop a mathematical model of the mass transfer in a modified brewery tank for producing fuel ethanol. To reduce fossil fuel consumption, 50 flat-plate solar collectors were used as the heat source for the two stages of a distillation process for increasing the ethanol concentration. A 350-L distillation tank with 10%v/v (Stage 1) and a 70-L distillation tank with 40%v/v (Stage 2) were employed in the experiment used to develop the mathematical model of the mass transfer. A difference of approximately 10% was observed between the model predictions and the experimental results of the distillation product of Stage 1, whereas the predicted concentration was approximately 30% higher than that of the experiment, although this was reduced to approximately 5% by homogeneous mixing of the solution. Regarding the distillation process of Stage 2, there was approximately 10% difference between the predicted and experimental products, and approximately 3% difference between the predicted and experimental concentrations. The differences are attributed to errors in the heat transfer rate prediction of the model, which varies directly with the solar radiation values.
Energy Conversion and Management, 2015
In this article, models for the management of the ethanol waste of a solar ethanol distillation s... more In this article, models for the management of the ethanol waste of a solar ethanol distillation system prototype have been proposed. The solar distillation system operates as a batch operation and consists of three stages of distillation, which increase the ethanol concentration from 8% to 80% (v/v). In each distillation stage, various volumes of ethanol solutions with different concentrations were obtained; three reuse scenarios (1, 2, and 3) have been proposed for extracting the ethanol solution from the distillation tank in order to increase the overall efficiency of the ethanol distillation system and reduce the amount of materials (cassava broth) fed into the distillation system. The most efficient distillation process, in terms of the final product volume and ethanol concentration in the product, was realized by using scenario 3, which involved recycling a mixture of the waste from the first stage and the second stage, for redistillation in the first stage and returning the waste obtained from the third stage for redistillation in the second stage than in scenarios 2 and 1 under the same condition, both quantitatively and qualitatively. In addition, by using scenario 3 for managing the ethanol waste, the amount of feedstock (cassava broth) annually fed to the system in the first stage could be reduced by 88-92% (96,522-100,073 L/year), compared to using the other two scenarios. Compared to a distillation process without recycling, the amount of cassava broth fed to the system can be reduced by over 180,000 L/year by using scenario 3.
The Journal of Physical Chemistry B, 2001
The temperature effect on the adsorption at air/water interface and micelle formation of poly(eth... more The temperature effect on the adsorption at air/water interface and micelle formation of poly(ethylene glycol) monoalkyl ether (C i E j ) nonionic surfactant was investigated on the basis of the thermodynamic strategy. From the results of surface tension experiments and after applying the thermodynamic treatment, surface density and thermodynamic quantity changes associated with the adsorption and micelle formation were obtained. It has been found that the entropy of adsorption from monomeric state of C i E j is positive and depend on both concentration and temperature in the same trend; the entropy increases with increasing adsorption of surfactant and increasing temperature. This phenomenon is against that of ionic surfactant. The difference was analyzed in term of the competition between the dehydration effect and the orientation effect. For C i E j nonionic surfactant systems, the large amount of dehydration at high temperature dominates the controversial results of surface density and entropy changes. Moreover, the effect of hydrophobic chain length on the surface adsorption and micelle formation was included in this study using three C i E 5 's with i ) 8, 10, and 12. Those gave outstanding aspects with respect to the thermodynamic property changes.
Separation Science and Technology, 2003
Poly(oxyethylene)-9-nonylphenyl ether (PONPE-9) was employed for cloud point extraction of gold(I... more Poly(oxyethylene)-9-nonylphenyl ether (PONPE-9) was employed for cloud point extraction of gold(III) ion and its phase separation behavior under different experimental conditions was evaluated. The effect on extraction efficiency, including equilibration time, ratio of PONPE-9 to gold, settling temperature, and pH of the solution, was demonstrated. The results indicate that PONPE-9 can be utilized for the extraction of gold in a manner akin to previous work using PONPE-7.5. The optimum experimental results obtained were applied to design a process scheme, pH switching via CPE, to overcome the drawback of the difficulty of separating gold from a gold-entrapped surfactant. The utility of the proposed scheme was demonstrated through the application of recovering gold(III) ion from a multimetal solution. Recoveries of greater than 63% of gold were obtained. Even if this is not so high a percentage recovery, it indicates the feasibility of the process scheme. On the other hand, it proved to be an even simpler and easy method for recovering gold from the leaching solution of printed substrates without spending harmful organic solvent.
Materials Letters, 2011
This article appeared in a journal published by Elsevier. The attached copy is furnished to the a... more This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.
Colloid & Polymer Science, 2002
ABSTRACT A thermodynamic method was employed to analyze the surface tension data for studying the... more ABSTRACT A thermodynamic method was employed to analyze the surface tension data for studying the adsorption at the interface and micelle formation of an aqueous solution of polyoxyethylene nonyl phenyl ether having an average of nine oxyethylene units (PONPE-9) and that of PONPE-9 and gold (III) ion mixtures at pH 3, 7, and 10. The results suggested the existence of attractive interaction between PONPE-9 and gold in the adsorbed film and micelle and that the interaction strength decreases in the order pH 3, pH 10, and pH 7. This result was in accord with the percent extraction of gold obtained from the cloud point extraction method where the efficiency relies on the strength of the interaction between analytes and the surfactant. Thus, this study confirmed the usefulness of the thermodynamic equations developed.
The Journal of Physical Chemistry B, 2007
The concentration vs composition diagram of aggregate formation of the dodecyltrimethylammonium b... more The concentration vs composition diagram of aggregate formation of the dodecyltrimethylammonium bromide (DTAB) and didodecyldimethylammonium bromide (DDAB) mixture in aqueous solution at rather dilute region was constructed by analyzing the surface tension, turbidity, and electrical conductivity data and inspected by cryo-TEM images and dynamic light scattering data. Although the aqueous solution of DTAB forms only micelles, the transition from monomer to small aggregates and then to vesicle was found at 0.1 &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; X2 &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt;or=1, where X2 is the mole fraction of DDAB in the DTAB-DDAB mixture, while vesicle particles were formed directly from monomer solution at 0 &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; X2 &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.1. Furthermore, the transition from vesicle to micelle was found at 0 &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; X2 &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.4 at higher concentrations. An addition of DTAB to DDAB solution lowered considerably the DDAB concentration of the vesicle formation, which is attributable to asymmetric distribution of DTAB molecules between inner and outer monolayers of the vesicle bilayer. The shape and size of aggregates were obtained from surface tension, cryo-TEM, and light scattering data.