Standard water supply and sanitation system are the primary needs of people across the world for ... more Standard water supply and sanitation system are the primary needs of people across the world for a hygienic living, especially in coastal areas of Bangladesh as an underdeveloped country. This study was conducted in a saline prone area of Bangladesh (Nuniapara, Sholadana union, Paikgacha upazila, Khulna) based on questionnaire survey to 40 families to investigate the main reason for the scarcity of safe drinking water supply. According to the questionnaire survey and proper investigations, saline water intrusion in all surface water sources is the main culprit for the unsafe drinking water supply and sanitation system in the study area. On the other hand, the people in the study area have been suffering in different kinds of water and excreta-borne diseases such as diarrhea (7.5%), dysentery (5%), and skin diseases (16%) due to unhygienic drinking water and sanitation system, which are aggravating their poverty at extreme level. Based on the systematic investigation and survey, it i...
Non-thermal plasma is getting more popular in industrial applications, mainly treatment of materi... more Non-thermal plasma is getting more popular in industrial applications, mainly treatment of material surfaces. Hydrophobic coatings often suffer mechanical instability and do not function well after abrasion/scratching. In this study, non-thermal plasma jet generated at atmospheric pressure in ambient condition was applied to the hydrophobic treatment of glass surface using two precursors. Tetramethylsilane (TMS) was used to promote hydrophobicity and (3-Aminopropyl)triethoxysilane (APTES) was used to get durable mechanical strength of the coating although it is hydrophilic in character. An alternating current (AC) high voltage (operating frequency: 11.5 kHz) was used to generate plasma jet for producing a coating layer onto the soda-lime glass sample. Water contact angle of 139° and a stable mechanical strength were achieved at an optimal TMS/APTES ratio of 4.8. The coating thickness, strength and water contact angle were varied by changing treatment time, applied voltage, and carrier gas (argon) flow rate. The coating layer were characterized by atomic-force microscopy (AFM), scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), water contact angle (WCA), scratch test and UV/visible spectroscopy.
Journal of Industrial and Engineering Chemistry, 2018
Dry reforming of propane (DRP) with CO 2 was examined over iron-ceria spinel (FeCe 2 O 4) that wa... more Dry reforming of propane (DRP) with CO 2 was examined over iron-ceria spinel (FeCe 2 O 4) that was synthesized on mesoporous alumina foam by the sol-gel method. The FeCe 2 O 4 /Al-F catalyst exhibited significant catalytic activity for the DRP with propane and CO 2 conversions of 93% and 76%, respectively. Moreover, the redox behavior of the spinel was found to greatly reduce the deposition of carbon, which could be attributed to the oxidation of surface carbon to CO via the interaction with FeCe 2 O 4 lattice oxygen. The FeCe 2 O 4 /Al-F catalyst with good catalytic activity, long-term stability and coke resistance may be a promising candidate for the DRP.
Journal of industrial and engineering chemistry, 2018
Dry reforming of propane (DRP) with CO2 was examined over iron–ceria spinel (FeCe2O4) that was sy... more Dry reforming of propane (DRP) with CO2 was examined over iron–ceria spinel (FeCe2O4) that was synthesized on mesoporous alumina foam by the sol–gel method. The FeCe2O4/Al-F catalyst exhibited significant catalytic activity for the DRP with propane and CO2 conversions of 93% and 76%, respectively. Moreover, the redox behavior of the spinel was found to greatly reduce the deposition of carbon, which could be attributed to the oxidation of surface carbon to CO via the interaction with FeCe2O4 lattice oxygen. The FeCe2O4/Al-F catalyst with good catalytic activity, long-term stability and coke resistance may be a promising candidate for the DRP.
Non-thermal plasma is getting more popular in industrial applications, mainly treatment of materi... more Non-thermal plasma is getting more popular in industrial applications, mainly treatment of material surfaces. Hydrophobic coatings often suffer mechanical instability and do not function well after abrasion/scratching. In this study, non-thermal plasma jet generated at atmospheric pressure in ambient condition was applied to the hydrophobic treatment of glass surface using two precursors. Tetramethylsilane (TMS) was used to promote hydrophobicity and (3 Aminopropyl)triethoxysilane (APTES) was used to get durable mechanical strength of the coating although it is hydrophilic in character. An alternating current (AC) high voltage (operating frequency: 11.5 kHz) was used to generate plasma jet for producing a coating layer onto the soda-lime glass sample. Water contact angle of 139° and a stable mechanical strength were achieved at an optimal TMS/APTES ratio of 4.8. The coating thickness, strength and water contact angle were varied by changing treatment time, applied voltage, and carrier gas (argon) flow rate. The coating layer were characterized by atomic-force microscopy (AFM), scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), water contact angle (WCA), scratch test and UV/visible spectroscopy.
Standard water supply and sanitation system are the primary needs of people across the world for ... more Standard water supply and sanitation system are the primary needs of people across the world for a hygienic living, especially in coastal areas of Bangladesh as an underdeveloped country. This study was conducted in a saline prone area of Bangladesh (Nuniapara, Sholadana union, Paikgacha upazila, Khulna) based on questionnaire survey to 40 families to investigate the main reason for the scarcity of safe drinking water supply. According to the questionnaire survey and proper investigations, saline water intrusion in all surface water sources is the main culprit for the unsafe drinking water supply and sanitation system in the study area. On the other hand, the people in the study area have been suffering in different kinds of water and excreta-borne diseases such as diarrhea (7.5%), dysentery (5%), and skin diseases (16%) due to unhygienic drinking water and sanitation system, which are aggravating their poverty at extreme level. Based on the systematic investigation and survey, it i...
Non-thermal plasma is getting more popular in industrial applications, mainly treatment of materi... more Non-thermal plasma is getting more popular in industrial applications, mainly treatment of material surfaces. Hydrophobic coatings often suffer mechanical instability and do not function well after abrasion/scratching. In this study, non-thermal plasma jet generated at atmospheric pressure in ambient condition was applied to the hydrophobic treatment of glass surface using two precursors. Tetramethylsilane (TMS) was used to promote hydrophobicity and (3-Aminopropyl)triethoxysilane (APTES) was used to get durable mechanical strength of the coating although it is hydrophilic in character. An alternating current (AC) high voltage (operating frequency: 11.5 kHz) was used to generate plasma jet for producing a coating layer onto the soda-lime glass sample. Water contact angle of 139° and a stable mechanical strength were achieved at an optimal TMS/APTES ratio of 4.8. The coating thickness, strength and water contact angle were varied by changing treatment time, applied voltage, and carrier gas (argon) flow rate. The coating layer were characterized by atomic-force microscopy (AFM), scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), water contact angle (WCA), scratch test and UV/visible spectroscopy.
Journal of Industrial and Engineering Chemistry, 2018
Dry reforming of propane (DRP) with CO 2 was examined over iron-ceria spinel (FeCe 2 O 4) that wa... more Dry reforming of propane (DRP) with CO 2 was examined over iron-ceria spinel (FeCe 2 O 4) that was synthesized on mesoporous alumina foam by the sol-gel method. The FeCe 2 O 4 /Al-F catalyst exhibited significant catalytic activity for the DRP with propane and CO 2 conversions of 93% and 76%, respectively. Moreover, the redox behavior of the spinel was found to greatly reduce the deposition of carbon, which could be attributed to the oxidation of surface carbon to CO via the interaction with FeCe 2 O 4 lattice oxygen. The FeCe 2 O 4 /Al-F catalyst with good catalytic activity, long-term stability and coke resistance may be a promising candidate for the DRP.
Journal of industrial and engineering chemistry, 2018
Dry reforming of propane (DRP) with CO2 was examined over iron–ceria spinel (FeCe2O4) that was sy... more Dry reforming of propane (DRP) with CO2 was examined over iron–ceria spinel (FeCe2O4) that was synthesized on mesoporous alumina foam by the sol–gel method. The FeCe2O4/Al-F catalyst exhibited significant catalytic activity for the DRP with propane and CO2 conversions of 93% and 76%, respectively. Moreover, the redox behavior of the spinel was found to greatly reduce the deposition of carbon, which could be attributed to the oxidation of surface carbon to CO via the interaction with FeCe2O4 lattice oxygen. The FeCe2O4/Al-F catalyst with good catalytic activity, long-term stability and coke resistance may be a promising candidate for the DRP.
Non-thermal plasma is getting more popular in industrial applications, mainly treatment of materi... more Non-thermal plasma is getting more popular in industrial applications, mainly treatment of material surfaces. Hydrophobic coatings often suffer mechanical instability and do not function well after abrasion/scratching. In this study, non-thermal plasma jet generated at atmospheric pressure in ambient condition was applied to the hydrophobic treatment of glass surface using two precursors. Tetramethylsilane (TMS) was used to promote hydrophobicity and (3 Aminopropyl)triethoxysilane (APTES) was used to get durable mechanical strength of the coating although it is hydrophilic in character. An alternating current (AC) high voltage (operating frequency: 11.5 kHz) was used to generate plasma jet for producing a coating layer onto the soda-lime glass sample. Water contact angle of 139° and a stable mechanical strength were achieved at an optimal TMS/APTES ratio of 4.8. The coating thickness, strength and water contact angle were varied by changing treatment time, applied voltage, and carrier gas (argon) flow rate. The coating layer were characterized by atomic-force microscopy (AFM), scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), water contact angle (WCA), scratch test and UV/visible spectroscopy.
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