Mahruf Hossain - Academia.edu (original) (raw)
Papers by Mahruf Hossain
Scholars international journal of chemistry and material sciences, Mar 30, 2022
Activated Carbons (ACs) were prepared from jute stick charcoal by chemical activation using H 2 S... more Activated Carbons (ACs) were prepared from jute stick charcoal by chemical activation using H 2 SO 4 and H 3 PO 4 ranging temperature from 300 0 C to 350 0. The activated carbons and charcoal prepared from jute sticks were characterized by evaluating the surface chemistry, structural features and surface morphology. The properties of the carbons were characterized by Scanning Electron Microscope (SEM), Brunauer-Emmett-Teller (BET), X-Ray Diffraction (XRD) and the FT-IR method. The jute sticks were converted to activated carbons with the highest surface area (135-245m 2 /g) and largest mesopores volume (0.14-0.16 cm 3 /g). The FT-IR spectra exhibited that the pyrolysis of jute stick resulted in the release of aliphatic and O-containing functional groups by thermal effect. However, the release of functional groups is effect of chemical reaction in the ZnCl 2 , H 3 PO 4 , and H 2 SO 4 activation process. A honeycomb carbon structure in activated carbon was formed as observed on SEM images. Although charcoal and activated carbon were prepared at 300 0 C to 350 0 , the activated carbon exhibited much lower Raman sensitivity due to the formation of condensed aromatic ring systems. Due to high surface area and high porous structure with abundance of functional groups, the activated carbon prepared from jute sticks charcoal absorbed molecules with much higher than those of other activated carbon.
Scholars International Journal of Chemistry and Material Sciences
As the allocated forestland for pulp and paper production in Bangladesh is very limited and a sub... more As the allocated forestland for pulp and paper production in Bangladesh is very limited and a substantial amount of crops residues are generated each year, the latter can substitute for pulp and paper production. In this context, eight residues of crops produced in Bangladesh were evaluated. Final pulp yields were 40 -65% with the kappa number of 11-32% depending on crops residues. The experimental processes are outlined. The physico-mechanical properties of handmade papers are estimated by standard procedure. Gram per Square Metre (GSM), brightness percentage, thickness and tearing strength of different handmade paper sheets shows acceptable papermaking properties. FT-IR analysis were carried out for identifying types of chemicals bonds (functional groups).The study indicates that these hand-made papers can be used for making eco-friendly paper bags, packaging material which will be suitable alternative to the non-biodegradable plastic, a cause of ecological and environmental pollu...
Saudi journal of engineering and technology, Mar 14, 2022
Different fabrics were prepared by plain weaving with the blended yarns made of etherified jute f... more Different fabrics were prepared by plain weaving with the blended yarns made of etherified jute fibre in the ratio of 50:50 with cotton, rayon and polyester. The physical properties of fabrics from blended yarns have been compared with those of cotton fabrics made with the same calculation 30 tex yarns. The mechanical properties of these fabrics were determined to monitor their serviceability in practical use and to ensure their suitability as jute blended cotton and synthetic fabrics. The softness and handling characteristics presented by the blending length and flexible firmness of the blended fabrics were much more comparable to that of the cotton fabrics with the indented fabric structure. The strength properties of etherified jute blended fabrics showed that the durability and serviceability of these fabrics was not much less than that of cotton fabrics due to any stress and deformation during use. It has also been observed that the blending of etherified jute with cotton, rayon, polyester or any other flexible fiber improves the draping properties of the fabrics made from it and in actual use these fabrics have almost the same bright look and firmness of cotton fabrics.
Scholars International Journal of Chemistry and Material Sciences
Synthesis of microcrystalline cellulose (MCC) from jute sticks has been studied and reported in t... more Synthesis of microcrystalline cellulose (MCC) from jute sticks has been studied and reported in this work. The successful removal of lignin and hemi-cellulose has been confirmed through Fourier Transform Infrared (FTIR) spectroscopic technique. X-ray Diffraction (XRD) technique has been used to measure the crystal size and crystallinity index. The FTIR analysis revealed that the acid hydrolysis had an effect on the crystalline of the fibre; however it did not influence the chemical components of the fibres. Pharmaceutical standard tests were done. Higher concentration of sodium chlorite produces minimum particle size and the effective thermal degradation occurs at 340 °C.
Scholars international journal of chemistry and material sciences, Mar 30, 2022
Activated Carbons (ACs) were prepared from jute stick charcoal by chemical activation using H 2 S... more Activated Carbons (ACs) were prepared from jute stick charcoal by chemical activation using H 2 SO 4 and H 3 PO 4 ranging temperature from 300 0 C to 350 0. The activated carbons and charcoal prepared from jute sticks were characterized by evaluating the surface chemistry, structural features and surface morphology. The properties of the carbons were characterized by Scanning Electron Microscope (SEM), Brunauer-Emmett-Teller (BET), X-Ray Diffraction (XRD) and the FT-IR method. The jute sticks were converted to activated carbons with the highest surface area (135-245m 2 /g) and largest mesopores volume (0.14-0.16 cm 3 /g). The FT-IR spectra exhibited that the pyrolysis of jute stick resulted in the release of aliphatic and O-containing functional groups by thermal effect. However, the release of functional groups is effect of chemical reaction in the ZnCl 2 , H 3 PO 4 , and H 2 SO 4 activation process. A honeycomb carbon structure in activated carbon was formed as observed on SEM images. Although charcoal and activated carbon were prepared at 300 0 C to 350 0 , the activated carbon exhibited much lower Raman sensitivity due to the formation of condensed aromatic ring systems. Due to high surface area and high porous structure with abundance of functional groups, the activated carbon prepared from jute sticks charcoal absorbed molecules with much higher than those of other activated carbon.
Scholars International Journal of Chemistry and Material Sciences
As the allocated forestland for pulp and paper production in Bangladesh is very limited and a sub... more As the allocated forestland for pulp and paper production in Bangladesh is very limited and a substantial amount of crops residues are generated each year, the latter can substitute for pulp and paper production. In this context, eight residues of crops produced in Bangladesh were evaluated. Final pulp yields were 40 -65% with the kappa number of 11-32% depending on crops residues. The experimental processes are outlined. The physico-mechanical properties of handmade papers are estimated by standard procedure. Gram per Square Metre (GSM), brightness percentage, thickness and tearing strength of different handmade paper sheets shows acceptable papermaking properties. FT-IR analysis were carried out for identifying types of chemicals bonds (functional groups).The study indicates that these hand-made papers can be used for making eco-friendly paper bags, packaging material which will be suitable alternative to the non-biodegradable plastic, a cause of ecological and environmental pollu...
Saudi journal of engineering and technology, Mar 14, 2022
Different fabrics were prepared by plain weaving with the blended yarns made of etherified jute f... more Different fabrics were prepared by plain weaving with the blended yarns made of etherified jute fibre in the ratio of 50:50 with cotton, rayon and polyester. The physical properties of fabrics from blended yarns have been compared with those of cotton fabrics made with the same calculation 30 tex yarns. The mechanical properties of these fabrics were determined to monitor their serviceability in practical use and to ensure their suitability as jute blended cotton and synthetic fabrics. The softness and handling characteristics presented by the blending length and flexible firmness of the blended fabrics were much more comparable to that of the cotton fabrics with the indented fabric structure. The strength properties of etherified jute blended fabrics showed that the durability and serviceability of these fabrics was not much less than that of cotton fabrics due to any stress and deformation during use. It has also been observed that the blending of etherified jute with cotton, rayon, polyester or any other flexible fiber improves the draping properties of the fabrics made from it and in actual use these fabrics have almost the same bright look and firmness of cotton fabrics.
Scholars International Journal of Chemistry and Material Sciences
Synthesis of microcrystalline cellulose (MCC) from jute sticks has been studied and reported in t... more Synthesis of microcrystalline cellulose (MCC) from jute sticks has been studied and reported in this work. The successful removal of lignin and hemi-cellulose has been confirmed through Fourier Transform Infrared (FTIR) spectroscopic technique. X-ray Diffraction (XRD) technique has been used to measure the crystal size and crystallinity index. The FTIR analysis revealed that the acid hydrolysis had an effect on the crystalline of the fibre; however it did not influence the chemical components of the fibres. Pharmaceutical standard tests were done. Higher concentration of sodium chlorite produces minimum particle size and the effective thermal degradation occurs at 340 °C.