甲苯
降级(电信)
催化作用
光热治疗
氧气
溶剂
材料科学
化学工程
光化学
化学
纳米技术
有机化学
计算机科学
电信
工程类
作者
Shanliang Jiang,Changhao Li,Yaseen Mahammad,Ying Tang,Ruimeng Wang,Junjie Li,Jing Li,Zhongxing Zhao,Zhenxia Zhao
标识
DOI:10.1016/j.apcatb.2023.122509
摘要
Construction of highly-active photothermal catalysts featuring merits of high quantum efficiency and superior heat resistance is a great challenge during volatile organic compounds (VOCs) degradation under high humidity. Herein, a facile solvent-induced dimensionality reduction strategy was proposed to engineer a nanosheeted and polycrystalline Cu/Mn-based catalyst (M-Cu/MnOx) having interfacial oxygen vacancies for enhanced photo-thermal catalytic degradation of toluene under highly humid conditions. Unique Cu-mediated δ-MnO2/Mn3O4 nanosheets with high surface area exhibited excellent light absorptivity and photogenerated carrier separation efficiency, as well as superior light-driven thermogenesis. It realized ultra-high (92.8%) toluene conversion and deep mineralization (84.4%) under RH = 80% and continuous catalytic reaction (200 h). Its toluene degradation rate exhibited 3.5–71.9 times higher than reported state-of-the-art photothermal catalysts. The newly designed M-Cu/MnOx catalyst provides a promising, low-cost and alternative for the efficient degradation of toluene and other similar VOCs under humid conditions on large-scale operations.
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