Synthesis and Characterization of Sba-15 and Cu/Sba-15 Catalysts for Photoreduction of Carbon Dioxide

The greenhouse effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases, and is re-radiated in all directions.The increasing concentrations of the greenhouse gases in the atmosphere, where the major contribution comes from carbon dioxide (CO...

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Main Author:	Mohd Ridzuan, Azis
Format:	Undergraduates Project Papers
Language:	English
Published:	2012
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/7079/ http://umpir.ump.edu.my/id/eprint/7079/ http://umpir.ump.edu.my/id/eprint/7079/1/CD7192.pdf

id	ump-7079
recordtype	eprints
spelling	ump-70792015-03-03T09:34:10Z http://umpir.ump.edu.my/id/eprint/7079/ Synthesis and Characterization of Sba-15 and Cu/Sba-15 Catalysts for Photoreduction of Carbon Dioxide Mohd Ridzuan, Azis TP Chemical technology The greenhouse effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases, and is re-radiated in all directions.The increasing concentrations of the greenhouse gases in the atmosphere, where the major contribution comes from carbon dioxide (CO2). The result from a continued increase in CO2 concentration will cause major changes in global climate .Due to high concentration of CO2 in the environment, advanced oxidation process (AOP) was proposed. AOP is a process in which the oxidative capacity of a parent compound is modified to make oxidation-reduction reactions more rapid or complete. Due to the best properties that it can retain at high themperature and thermal stability SBA-15 has been chosen as catalysts. SBA-15 and Cu supported mesoporous siliceous SBA-15catalysts have been prepared by direct synthesis methods and wetness impregnation method, respectively and are systematically characterized. The characterizations of the synthesized samples were done using Fourier Transforms Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Thermal Gravimetric analysis (TGA) and X-ray diffraction (XRD). The FTIR analysis shows that when SBA-15 was doped with copper, the % transmittance of the spectral had decreased. From the SEM analysis, the surface morphology of SBA-15 was changed from smooth to course and irregular structure due to existence of Cu in SBA-15. XRD measurement shows that the amorphous phase for pure SBA-15 was changed to crystalline phase when Cu was deposited into SBA-15 proving that Cu present in the SBA-15 structure. The TGA analysis shows that with existence of Cu in SBA-15, enhanced the thermal stability properties of catalysts. Thermo gravimetric analysis shows that the copper deposition on SBA-15 is stable up to a temperature of 515 °C and that the copper decomposes between 515 °C and 798 °C. The results of the FTIR, SEM, XRD and TGA testify completely that the Cu was incorporated into the framework sites of the SBA-15. 2012-07 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/7079/1/CD7192.pdf Mohd Ridzuan, Azis (2012) Synthesis and Characterization of Sba-15 and Cu/Sba-15 Catalysts for Photoreduction of Carbon Dioxide. Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:73985&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Mohd Ridzuan, Azis Synthesis and Characterization of Sba-15 and Cu/Sba-15 Catalysts for Photoreduction of Carbon Dioxide
description	The greenhouse effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases, and is re-radiated in all directions.The increasing concentrations of the greenhouse gases in the atmosphere, where the major contribution comes from carbon dioxide (CO2). The result from a continued increase in CO2 concentration will cause major changes in global climate .Due to high concentration of CO2 in the environment, advanced oxidation process (AOP) was proposed. AOP is a process in which the oxidative capacity of a parent compound is modified to make oxidation-reduction reactions more rapid or complete. Due to the best properties that it can retain at high themperature and thermal stability SBA-15 has been chosen as catalysts. SBA-15 and Cu supported mesoporous siliceous SBA-15catalysts have been prepared by direct synthesis methods and wetness impregnation method, respectively and are systematically characterized. The characterizations of the synthesized samples were done using Fourier Transforms Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Thermal Gravimetric analysis (TGA) and X-ray diffraction (XRD). The FTIR analysis shows that when SBA-15 was doped with copper, the % transmittance of the spectral had decreased. From the SEM analysis, the surface morphology of SBA-15 was changed from smooth to course and irregular structure due to existence of Cu in SBA-15. XRD measurement shows that the amorphous phase for pure SBA-15 was changed to crystalline phase when Cu was deposited into SBA-15 proving that Cu present in the SBA-15 structure. The TGA analysis shows that with existence of Cu in SBA-15, enhanced the thermal stability properties of catalysts. Thermo gravimetric analysis shows that the copper deposition on SBA-15 is stable up to a temperature of 515 °C and that the copper decomposes between 515 °C and 798 °C. The results of the FTIR, SEM, XRD and TGA testify completely that the Cu was incorporated into the framework sites of the SBA-15.
format	Undergraduates Project Papers
author	Mohd Ridzuan, Azis
author_facet	Mohd Ridzuan, Azis
author_sort	Mohd Ridzuan, Azis
title	Synthesis and Characterization of Sba-15 and Cu/Sba-15 Catalysts for Photoreduction of Carbon Dioxide
title_short	Synthesis and Characterization of Sba-15 and Cu/Sba-15 Catalysts for Photoreduction of Carbon Dioxide
title_full	Synthesis and Characterization of Sba-15 and Cu/Sba-15 Catalysts for Photoreduction of Carbon Dioxide
title_fullStr	Synthesis and Characterization of Sba-15 and Cu/Sba-15 Catalysts for Photoreduction of Carbon Dioxide
title_full_unstemmed	Synthesis and Characterization of Sba-15 and Cu/Sba-15 Catalysts for Photoreduction of Carbon Dioxide
title_sort	synthesis and characterization of sba-15 and cu/sba-15 catalysts for photoreduction of carbon dioxide
publishDate	2012
url	http://umpir.ump.edu.my/id/eprint/7079/ http://umpir.ump.edu.my/id/eprint/7079/ http://umpir.ump.edu.my/id/eprint/7079/1/CD7192.pdf
first_indexed	2023-09-18T22:03:24Z
last_indexed	2023-09-18T22:03:24Z
_version_	1777414548664352768

Synthesis and Characterization of Sba-15 and Cu/Sba-15 Catalysts for Photoreduction of Carbon Dioxide

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