The characteristics of copper containing SBA-15 prepared by impregnation and pH adjustment methods and their activities for N2O decomposition

• Main Authors: Mohd Husin, Mohd Haizal, Dewayanto, Nugroho, Nordin, Mohd Ridzuan, Jinli, Li
• Format: Article
• Language: English
• Published: American-Eurasian Network for Scientific Information 2015
• Subjects: QD Chemistry
• 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
• Institution: Universiti Teknikal Malaysia Melaka

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.