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Papers by tallat khan

Research paper thumbnail of Well-dispersed Ni-nanoparticles in the lamellas of the synthesized clinoptilolite for CH4 and CO2 reforming

Catalysis today, May 1, 2024

Research paper thumbnail of Comprehensive Comparisons between Synthetic and Natural Clinoptilolites for Simultaneous Removal Performances of Ni2+, Sr2+, Mn2+, Cd2+, Fe3+From an Aqueous Solution

Research paper thumbnail of Toxic Metals Analysis in Zabi Dam Fishes Collected from District Karak, Khyber Pakhtunkhwa, Pakistan

Journal of entomology and zoology studies, 2016

Heavy metals above their permissible limit are extremely threaten for animals and other microbes,... more Heavy metals above their permissible limit are extremely threaten for animals and other microbes, so its acquire attention to study and to find solution. It was therefore of interest to conduct study to estimate accumulation of heavy metals in fishes of Zabi Dam Karak Pakistan. Zebi dam is located on North East of Karak city. Three samples of fishes namely Labeo rohita (rahu), Cyprinus carpio (Common Carp) and Goldfish collected randomly from different sides of Zabi dam. Samples were analyzed for these selected heavy metals cadmium, zinc, iron, copper, nickel and lead. The pattern of decreasing concentrations for fishes on average showed the following result Fe>Pb>Zn>Cu>Ni>Cd in which Pb showed highest average result while Cd and Ni Showed lowest. In all the three parts of head, abdomen and tail Labeo rohita the highest concentration is shown by Fe (9.501mg/kg) in head while lowest concentration shown by Ni and Cd (0 mg/kg) in all parts. In case of Cyprinus carpio Pb has the highest level (26.28 mg/kg) among all metals in head while lowest (0 mg/kg) concentration showed by both Ni and Cd.

Research paper thumbnail of Fractal features of pH-sensitive bimodal mesoporous silica-supported bipyridine-proline organocatalysts with core-shell structure and their application in asymmetric aldol reaction

Arabian Journal of Chemistry

Research paper thumbnail of Toxic Metals Analysis in Zabi Dam Fishes Collected from District Karak, Khyber Pakhtunkhwa, Pakistan

Journal of entomology and zoology studies, 2016

Heavy metals above their permissible limit are extremely threaten for animals and other microbes,... more Heavy metals above their permissible limit are extremely threaten for animals and other microbes, so its acquire attention to study and to find solution. It was therefore of interest to conduct study to estimate accumulation of heavy metals in fishes of Zabi Dam Karak Pakistan. Zebi dam is located on North East of Karak city. Three samples of fishes namely Labeo rohita (rahu), Cyprinus carpio (Common Carp) and Goldfish collected randomly from different sides of Zabi dam. Samples were analyzed for these selected heavy metals cadmium, zinc, iron, copper, nickel and lead. The pattern of decreasing concentrations for fishes on average showed the following result Fe>Pb>Zn>Cu>Ni>Cd in which Pb showed highest average result while Cd and Ni Showed lowest. In all the three parts of head, abdomen and tail Labeo rohita the highest concentration is shown by Fe (9.501mg/kg) in head while lowest concentration shown by Ni and Cd (0 mg/kg) in all parts. In case of Cyprinus carpio Pb has the highest level (26.28 mg/kg) among all metals in head while lowest (0 mg/kg) concentration showed by both Ni and Cd.

Research paper thumbnail of Fishes of Zabi dam Labeo rohita ( rahu ) Kingdom : Animalia Phylum : Chordata Class : Ctinopteygii Order : Cypriniformes Family : Cyprinidae Scientific Name : Labeo Rohita Common name : Rahu

Heavy metals above their permissible limit are extremely threaten for animals and other microbes,... more Heavy metals above their permissible limit are extremely threaten for animals and other microbes, so its acquire attention to study and to find solution. It was therefore of interest to conduct study to estimate accumulation of heavy metals in fishes of Zabi Dam Karak Pakistan. Zebi dam is located on North East of Karak city. Three samples of fishes namely Labeo rohita (rahu), Cyprinus carpio (Common Carp) and Goldfish collected randomly from different sides of Zabi dam. Samples were analyzed for these selected heavy metals cadmium, zinc, iron, copper, nickel and lead. The pattern of decreasing concentrations for fishes on average showed the following result Fe>Pb>Zn>Cu>Ni>Cd in which Pb showed highest average result while Cd and Ni Showed lowest. In all the three parts of head, abdomen and tail Labeo rohita the highest concentration is shown by Fe (9.501mg/kg) in head while lowest concentration shown by Ni and Cd (0 mg/kg) in all parts. In case of Cyprinus carpio Pb ...

Research paper thumbnail of Incorporation of Anatase TiO2 to Highly Porous Silica (BMMs) for Photo‐Degradation of Alizarin Red Dye in Aqueous Solution

ChemistrySelect, 2021

Prelaminar synthesis of anatase TiO2 nanoparticles supported on bimodal mesoporous silica (BMMs) ... more Prelaminar synthesis of anatase TiO2 nanoparticles supported on bimodal mesoporous silica (BMMs) was carried out by impregnation method. Physiochemical characteristic and structural morphology of synthesized catalyst (TiO2/BMMs) were studied in detail by X‐ray diffraction patterns, N2 sorption isotherms, Fourier transform infrared and ultraviolet‐visible spectra, surface‐zeta charges, inductively coupled plasma atomic emission spectroscopy, scanning electron microscopy and transmission electron microscopy. The results demonstrated that the anatase TiO2 nanoparticles in size of around 5.06 nm were uniformly dispersed on the mesoporous surface of BMMs. The resultant TiO2/BMMs as photo‐catalyst had extensive effect on degradation performances (93.6 %) of alizarin red dye in aqueous solution, in which the effects of various parameters, such as pH, dose, and pollutant concentration on the adsorption capacity and further photo‐degradation were explored. Meanwhile, the reused photocatalyst...

Research paper thumbnail of The fabrication of TiO2-supported clinoptilolite via F− contained hydrothermal etching and a resultant highly energetic {001} facet for the enhancement of its photocatalytic activity

RSC Advances, 2021

TiO2-supported clinoptilolite (TiO2/CP) was synthesized in the presence of F− ions.

Research paper thumbnail of Synthesis of mesoporous TiO2/BMMs via hydrothermal method and its potential application toward adsorption and photocatalytic degradation of crystal violet from aqueous solution

Arabian Journal of Chemistry, 2021

Research paper thumbnail of Various morphologies of clinoptilolites synthesized in alcohol-solvent hydrothermal system and their selective adsorption of CH4 and N2

Microporous and Mesoporous Materials, 2021

Abstract Clinoptilolite (CP) with various morphologies, such as spherical, flower, cylindrical, a... more Abstract Clinoptilolite (CP) with various morphologies, such as spherical, flower, cylindrical, and disc-shape, were successfully synthesized in the presence of alcohol solvents with different carbon chain lengths. The structural and textural properties of the resultant CPs were characterized via XRD, SEM, TG-DSC profiles, TEM, NMR, FT-IR spectra, and N2 sorption isotherms. The effect of the additive amount of various alcohol solvents on the induction (nucleation) periods and growth stages of synthetic CPs were detailed investigated. Their activation energies of induction (En) and growth (Eg) periods during crystallization intervals were calculated according to the Arrhenius equation, where the former being larger than the latter, indicating that nucleation is the key step during the whole synthesis of CPs. Particularly, the En value gradually increased as the increasing chain-length of the used alcohol, but smaller than that without additive alcohols. These demonstrations implied that the presence of alcohol solvents is beneficial to promote the nucleation process of synthetic CP. Furthermore, their CH4 and N2 adsorption capacity and selectivity were preliminary explored, showing the highest selective factor of 5.58 at 0 °C for CH4/N2 separation using flower-like CP as an adsorbent. These results suggested a promising adsorbent for wide applications in gas separation.

Research paper thumbnail of Evaluations of physico-chemical properties of TiO2/clinoptilolite synthesized via three methods on photocatalytic degradation of crystal violet

Chinese Journal of Chemical Engineering, 2020

Evaluations of physico-chemical properties of TiO 2 /clinoptilolite synthesized via three methods... more Evaluations of physico-chemical properties of TiO 2 /clinoptilolite synthesized via three methods on photocatalytic degradation of crystal violet, Chinese

Research paper thumbnail of Heavy metal analysis in fishes and water of Changhoz dam district Karak, KPK, Pakistan

Journal of entomology and zoology studies, 2016

This study was conducted from January 2014 to October 2015 to find out accumulation of heavy meta... more This study was conducted from January 2014 to October 2015 to find out accumulation of heavy metals in fishes and water of Changhoz dam Karak, K.P.K. Pakistan. For this purpose three samples of fishes namely Hypophthalmichthys molitrix (silver fish), Crossocheilus latius (Dogra) and Hypophthalmichthys nobilis (Bighead) from different sides and four samples of water from left/north, right/south, front and outer coming region of changhoz dam were collected during the months of February and March 2015. Heavy metals for which these samples were analyzed were Cadmium, Zinc, Iron, Copper, Nickel and Lead. In Hypophthalmichthys nobilis (bighead) highest concentration is showed by Iron in region of Scales while Cd and Ni were not detected in any part, other element detected with concentration comparably less to Permissible limit. In Hypophthalmichthys molitrix (Silver fish) highest concentration showed by Ni in Abdomen while in other parts Ni along with Cd were not detected, Fe and Pb showe...

Research paper thumbnail of Well-dispersed Ni-nanoparticles in the lamellas of the synthesized clinoptilolite for CH4 and CO2 reforming

Catalysis today, May 1, 2024

Research paper thumbnail of Comprehensive Comparisons between Synthetic and Natural Clinoptilolites for Simultaneous Removal Performances of Ni2+, Sr2+, Mn2+, Cd2+, Fe3+From an Aqueous Solution

Research paper thumbnail of Toxic Metals Analysis in Zabi Dam Fishes Collected from District Karak, Khyber Pakhtunkhwa, Pakistan

Journal of entomology and zoology studies, 2016

Heavy metals above their permissible limit are extremely threaten for animals and other microbes,... more Heavy metals above their permissible limit are extremely threaten for animals and other microbes, so its acquire attention to study and to find solution. It was therefore of interest to conduct study to estimate accumulation of heavy metals in fishes of Zabi Dam Karak Pakistan. Zebi dam is located on North East of Karak city. Three samples of fishes namely Labeo rohita (rahu), Cyprinus carpio (Common Carp) and Goldfish collected randomly from different sides of Zabi dam. Samples were analyzed for these selected heavy metals cadmium, zinc, iron, copper, nickel and lead. The pattern of decreasing concentrations for fishes on average showed the following result Fe>Pb>Zn>Cu>Ni>Cd in which Pb showed highest average result while Cd and Ni Showed lowest. In all the three parts of head, abdomen and tail Labeo rohita the highest concentration is shown by Fe (9.501mg/kg) in head while lowest concentration shown by Ni and Cd (0 mg/kg) in all parts. In case of Cyprinus carpio Pb has the highest level (26.28 mg/kg) among all metals in head while lowest (0 mg/kg) concentration showed by both Ni and Cd.

Research paper thumbnail of Fractal features of pH-sensitive bimodal mesoporous silica-supported bipyridine-proline organocatalysts with core-shell structure and their application in asymmetric aldol reaction

Arabian Journal of Chemistry

Research paper thumbnail of Toxic Metals Analysis in Zabi Dam Fishes Collected from District Karak, Khyber Pakhtunkhwa, Pakistan

Journal of entomology and zoology studies, 2016

Heavy metals above their permissible limit are extremely threaten for animals and other microbes,... more Heavy metals above their permissible limit are extremely threaten for animals and other microbes, so its acquire attention to study and to find solution. It was therefore of interest to conduct study to estimate accumulation of heavy metals in fishes of Zabi Dam Karak Pakistan. Zebi dam is located on North East of Karak city. Three samples of fishes namely Labeo rohita (rahu), Cyprinus carpio (Common Carp) and Goldfish collected randomly from different sides of Zabi dam. Samples were analyzed for these selected heavy metals cadmium, zinc, iron, copper, nickel and lead. The pattern of decreasing concentrations for fishes on average showed the following result Fe>Pb>Zn>Cu>Ni>Cd in which Pb showed highest average result while Cd and Ni Showed lowest. In all the three parts of head, abdomen and tail Labeo rohita the highest concentration is shown by Fe (9.501mg/kg) in head while lowest concentration shown by Ni and Cd (0 mg/kg) in all parts. In case of Cyprinus carpio Pb has the highest level (26.28 mg/kg) among all metals in head while lowest (0 mg/kg) concentration showed by both Ni and Cd.

Research paper thumbnail of Fishes of Zabi dam Labeo rohita ( rahu ) Kingdom : Animalia Phylum : Chordata Class : Ctinopteygii Order : Cypriniformes Family : Cyprinidae Scientific Name : Labeo Rohita Common name : Rahu

Heavy metals above their permissible limit are extremely threaten for animals and other microbes,... more Heavy metals above their permissible limit are extremely threaten for animals and other microbes, so its acquire attention to study and to find solution. It was therefore of interest to conduct study to estimate accumulation of heavy metals in fishes of Zabi Dam Karak Pakistan. Zebi dam is located on North East of Karak city. Three samples of fishes namely Labeo rohita (rahu), Cyprinus carpio (Common Carp) and Goldfish collected randomly from different sides of Zabi dam. Samples were analyzed for these selected heavy metals cadmium, zinc, iron, copper, nickel and lead. The pattern of decreasing concentrations for fishes on average showed the following result Fe>Pb>Zn>Cu>Ni>Cd in which Pb showed highest average result while Cd and Ni Showed lowest. In all the three parts of head, abdomen and tail Labeo rohita the highest concentration is shown by Fe (9.501mg/kg) in head while lowest concentration shown by Ni and Cd (0 mg/kg) in all parts. In case of Cyprinus carpio Pb ...

Research paper thumbnail of Incorporation of Anatase TiO2 to Highly Porous Silica (BMMs) for Photo‐Degradation of Alizarin Red Dye in Aqueous Solution

ChemistrySelect, 2021

Prelaminar synthesis of anatase TiO2 nanoparticles supported on bimodal mesoporous silica (BMMs) ... more Prelaminar synthesis of anatase TiO2 nanoparticles supported on bimodal mesoporous silica (BMMs) was carried out by impregnation method. Physiochemical characteristic and structural morphology of synthesized catalyst (TiO2/BMMs) were studied in detail by X‐ray diffraction patterns, N2 sorption isotherms, Fourier transform infrared and ultraviolet‐visible spectra, surface‐zeta charges, inductively coupled plasma atomic emission spectroscopy, scanning electron microscopy and transmission electron microscopy. The results demonstrated that the anatase TiO2 nanoparticles in size of around 5.06 nm were uniformly dispersed on the mesoporous surface of BMMs. The resultant TiO2/BMMs as photo‐catalyst had extensive effect on degradation performances (93.6 %) of alizarin red dye in aqueous solution, in which the effects of various parameters, such as pH, dose, and pollutant concentration on the adsorption capacity and further photo‐degradation were explored. Meanwhile, the reused photocatalyst...

Research paper thumbnail of The fabrication of TiO2-supported clinoptilolite via F− contained hydrothermal etching and a resultant highly energetic {001} facet for the enhancement of its photocatalytic activity

RSC Advances, 2021

TiO2-supported clinoptilolite (TiO2/CP) was synthesized in the presence of F− ions.

Research paper thumbnail of Synthesis of mesoporous TiO2/BMMs via hydrothermal method and its potential application toward adsorption and photocatalytic degradation of crystal violet from aqueous solution

Arabian Journal of Chemistry, 2021

Research paper thumbnail of Various morphologies of clinoptilolites synthesized in alcohol-solvent hydrothermal system and their selective adsorption of CH4 and N2

Microporous and Mesoporous Materials, 2021

Abstract Clinoptilolite (CP) with various morphologies, such as spherical, flower, cylindrical, a... more Abstract Clinoptilolite (CP) with various morphologies, such as spherical, flower, cylindrical, and disc-shape, were successfully synthesized in the presence of alcohol solvents with different carbon chain lengths. The structural and textural properties of the resultant CPs were characterized via XRD, SEM, TG-DSC profiles, TEM, NMR, FT-IR spectra, and N2 sorption isotherms. The effect of the additive amount of various alcohol solvents on the induction (nucleation) periods and growth stages of synthetic CPs were detailed investigated. Their activation energies of induction (En) and growth (Eg) periods during crystallization intervals were calculated according to the Arrhenius equation, where the former being larger than the latter, indicating that nucleation is the key step during the whole synthesis of CPs. Particularly, the En value gradually increased as the increasing chain-length of the used alcohol, but smaller than that without additive alcohols. These demonstrations implied that the presence of alcohol solvents is beneficial to promote the nucleation process of synthetic CP. Furthermore, their CH4 and N2 adsorption capacity and selectivity were preliminary explored, showing the highest selective factor of 5.58 at 0 °C for CH4/N2 separation using flower-like CP as an adsorbent. These results suggested a promising adsorbent for wide applications in gas separation.

Research paper thumbnail of Evaluations of physico-chemical properties of TiO2/clinoptilolite synthesized via three methods on photocatalytic degradation of crystal violet

Chinese Journal of Chemical Engineering, 2020

Evaluations of physico-chemical properties of TiO 2 /clinoptilolite synthesized via three methods... more Evaluations of physico-chemical properties of TiO 2 /clinoptilolite synthesized via three methods on photocatalytic degradation of crystal violet, Chinese

Research paper thumbnail of Heavy metal analysis in fishes and water of Changhoz dam district Karak, KPK, Pakistan

Journal of entomology and zoology studies, 2016

This study was conducted from January 2014 to October 2015 to find out accumulation of heavy meta... more This study was conducted from January 2014 to October 2015 to find out accumulation of heavy metals in fishes and water of Changhoz dam Karak, K.P.K. Pakistan. For this purpose three samples of fishes namely Hypophthalmichthys molitrix (silver fish), Crossocheilus latius (Dogra) and Hypophthalmichthys nobilis (Bighead) from different sides and four samples of water from left/north, right/south, front and outer coming region of changhoz dam were collected during the months of February and March 2015. Heavy metals for which these samples were analyzed were Cadmium, Zinc, Iron, Copper, Nickel and Lead. In Hypophthalmichthys nobilis (bighead) highest concentration is showed by Iron in region of Scales while Cd and Ni were not detected in any part, other element detected with concentration comparably less to Permissible limit. In Hypophthalmichthys molitrix (Silver fish) highest concentration showed by Ni in Abdomen while in other parts Ni along with Cd were not detected, Fe and Pb showe...