| Title: | Facile fabrication of flower-like MnO(2) hollow microspheres as high-performance catalysts for toluene oxidation |
| Author(s): | Gu W; Li C; Qiu J; Yao J; |
| Address: | "School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China. Electronic address: guwenxiu@jiangnan.edu.cn. School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China. Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China. Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China. Electronic address: jfyao@njfu.edu.cn" |
| DOI: | 10.1016/j.jhazmat.2020.124458 |
| ISSN/ISBN: | 1873-3336 (Electronic) 0304-3894 (Linking) |
| Abstract: | "A facile and robust interface reaction method for controllable synthesis of hierarchically structured flower-like MnO(2) hollow microspheres was developed at a low cost. With MnCO(3) microspheres as homologous templates, KMnO(4) was used to conduct redox reactions with the surface layer of the MnCO(3) microspheres to form porous flower-like MnO(2). Then, the internal template was removed by HCl etching to obtain flower-like MnO(2) hollow microspheres. HCl plays the dual role of removing the template and generating oxygen vacancies through acid etching. The as-prepared flower-like MnO(2) hollow microspheres exhibited excellent low-temperature catalytic activity for toluene oxidation owing to the desirable features of a high specific surface area, abundant oxygen vacancies, high content of Mn(4+), a high number of acidic sites and a strong acidity. This work provides a new strategy for the facile construction of high-performance volatile organic compounds oxidation catalysts with industrial application prospects" |
| Keywords: | Acid etching Flower-like MnO(2) hollow microsphere Interface reaction Oxygen vacancies Toluene catalytic oxidation; |
| Notes: | "PubMed-not-MEDLINEGu, Wenxiu Li, Chenqi Qiu, Jianhao Yao, Jianfeng eng Netherlands 2020/11/11 J Hazard Mater. 2021 Apr 15; 408:124458. doi: 10.1016/j.jhazmat.2020.124458. Epub 2020 Nov 4" |
