The characteristics of copper containing SBA-15 prepared by impregnation and pH adjustment methods and their activities for N2O decomposition
Two types of Cu-SBA-15 catalysts were successfully prepared by impregnation and by pH adjustment methods. All synthesized materials have been characterized by XRD, Nitrogen adsorption–desorption, and TEM. After the impregnation of copper, the unit-cell, specific surface area and pore volume of SBA-1...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American-Eurasian Network for Scientific Information
2015
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| Subjects: | |
| Online Access: | http://eprints.utem.edu.my/id/eprint/14371/1/2015_Advances_in_Environmental_Biology%2C_9%286%29.pdf http://eprints.utem.edu.my/id/eprint/14371/ http://www.aensiweb.net/AENSIWEB/aeb/aeb/2015/Special2%20IPN%20Langkawi/6-14.pdf |
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| Institution: | Universiti Teknikal Malaysia Melaka |
| Language: | English |
| Summary: | Two types of Cu-SBA-15 catalysts were successfully prepared by impregnation and by pH adjustment methods. All synthesized materials have been characterized by XRD, Nitrogen adsorption–desorption, and TEM. After the impregnation of copper, the unit-cell, specific surface area and pore volume of SBA-15 were found to decrease, while the formation of CuO deposited on the framework was detected. On the contrary, the catalyst prepared by pH modification method indicated the increase of unit-cell, surface area, pore volume, and wall thickness after the incorporation of the copper ions on SBA-15 and copper atoms were substituted into the framework of the SBA-15. Series of N2O decomposition experiments were carried out using the catalysts. Cu/SBA-15 samples prepared by pH adjustment method showed higher catalytic activity thanCu-SBA-15 samples prepared by impregnation method. |
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