| Title: | Niobium doping enhanced catalytic performance of Mn/MCM-41 for toluene degradation in the NTP-catalysis system |
| Author(s): | Yao X; Zhang J; Liang X; Long C; |
| Address: | "State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China. State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China; Nanjing University Yancheng Environmental Protection Technology and Engineering Research Institute, 888 Yingbin Road, Yancheng, 22400, China. Electronic address: clong@nju.edu.cn" |
| DOI: | 10.1016/j.chemosphere.2019.05.075 |
| ISSN/ISBN: | 1879-1298 (Electronic) 0045-6535 (Linking) |
| Abstract: | "The destruction of toluene in a dielectric barrier discharge (DBD) reactor with Nb-Mn/MCM-41 had been investigated and compared with X (X?ª+=?ª+Cu, Ce, Co)-Mn/MCM-41 catalysts. The XRD and TEM result confirms that the metal species were highly dispersed on the MCM-41. The results of XPS, O(2)-TPD and H(2)-TPR clearly demonstrate that Nb doping facilitated formation of lattice oxygen (O(latt)) and the acid sites, which are all beneficial to catalytic degradation of toluene. Compared to X (Cu, Ce, Co)-Mn/MCM-41, Nb-Mn/MCM-41 had the most contents of O(latt), the most amounts of acid sites and the strongest acidity. Consequently, the catalytic performance tests identify that Nb-Mn/MCM-41 had the best catalytic performance, the highest removal efficiency and CO(2) selectivity as well as carbon balance especially at low SIE. These results indicate that Nb was an important promoter improving the activity and CO(2) selectivity of Mn/MCM-41 for the decomposition of toluene in NTP-catalysis system" |
| Keywords: | "Catalysis Electrochemical Techniques/*methods Environmental Pollutants/analysis Manganese/*chemistry Models, Theoretical Niobium/*chemistry Oxidation-Reduction Oxides Plasma Gases/*chemistry Silicon Dioxide/*chemistry Toluene/*analysis Volatile Organic Co;" |
| Notes: | "MedlineYao, Xiaohong Zhang, Jian Liang, Xiaoyang Long, Chao eng England 2019/05/24 Chemosphere. 2019 Sep; 230:479-487. doi: 10.1016/j.chemosphere.2019.05.075. Epub 2019 May 14" |
