光催化
三元运算
光降解
材料科学
异质结
降级(电信)
复合数
催化作用
化学工程
多孔性
核化学
化学
复合材料
光电子学
有机化学
电信
工程类
计算机科学
程序设计语言
作者
Q. Wei,Shuxian Xiong,Wei Li,Chun Jin,Yasi Chen,Linlin Hou,Zhiliang Wu,Pan Zhang,Qinyu He,Yinzhen Wang,Dingyuan Tang
标识
DOI:10.1016/j.jallcom.2021.160984
摘要
In this work, we successfully prepared regular hexagonal prism porous structure g-C3N4 (CN), and designed α-SnWO4 and UiO-66(NH2) on porous CN for constructing novel ternary α-SnWO4/UiO-66(NH2)/g-C3N4 (α-SW/UNCN) hybrid photocatalyst by solvothermal approach. The α-SW75/UNCN composite showed better photocatalytic performance, and the removal rate of Ibuprofen (IPF) reached 95.5% within 2 h and the H2 evolution efficiency reached 2105 μmol g−1 h−1 under simulated sunlight, which were 2.5 times and 21 times higher than those of α-SW (42.5% and 105 μmol g−1 h−1). The TOC removal efficiency of IPF can reach to 29%, showing higher mineralization ability compared with α-SW. In addition, the trapping experiment and ESR experiment proved that •O2- and •OH radicals played most important part in the photodegradation of IPF pollutants. The improved photocatalytic performance of α-SW/UNCN was owing to the construction of n-p-n type double Z-scheme heterojunction which enhanced carries separation. This work will provide a method for preparing novel and efficiency ternary composite catalyst for antibiotic contaminant degradation and H2 production.
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