文献类型：期刊文献

英文题名：Development of mesh-type Fenton-like Cu/Fex/γ-Al2O3/Al catalysts and application for catalytic degradation of dyes

作者：Huang Qian[1];Shao Qianwen[1];Zhang Qi[1];Ni Yanhui[1];Wu Yongqiang[1]

机构：[1]East China Univ Sci & Technol, Dept Chem Engn, Shanghai 200237, Peoples R China

年份：2020

卷号：81

期号：10

起止页码：2057

外文期刊名：WATER SCIENCE AND TECHNOLOGY

收录：;EI(收录号：20203509103431);WOS:【SCI-EXPANDED(收录号:WOS:000556338300002)】；

基金：This work was financially supported by National Key Research and Development Project (Grant No. 2018YFB0105603) and the Shandong Greenwater Environmental Protection Technology Co. Ltd.

语种：英文

外文关键词：bimetallic catalyst; Fenton-like reaction; RhB degradation; water treatment

摘要：The application of nanoparticle heterogeneous Fenton-like catalysts is limited due to the requirement of filtration after reaction and possible secondary pollution. In this work, a novel mesh-type monolithic Fenton-like Cu/Fe-x/gamma-Al2O3/Al catalyst was developed for the degradation of dyes. The Cu and Fe species are uniformly dispersed on the mesh-type anodic monolithic gamma-Al(2)O(3)supports, and the results of scanning electron microscopy and X-ray diffractometry analysis show that Fe can reduce the particle size of Cu over gamma-Al2O3. The activity results show that the degradation rate of rhodamine B (RhB) reached 99.5% within 1 h using 4 x 6 cm Cu-12.0/Fe-2.0/gamma-Al2O3/Al catalyst with 1,200 ppm H(2)O(2)at 50 degrees C. The important role of center dot OH as a reactive oxidant was confirmed through electron spin-resonance spectroscopy and radical scavenging experiment. The hydrogen temperature programmed reduction suggests the high redox ability of Cu/Fe bimetallic catalyst is beneficial to the production of center dot OH. The Cu/Fe bimetallic catalyst shows excellent recyclability in a 10-cycle experiment, the degradation rate of RhB was maintained at 98% and the leaching amount of metals was lower than 0.7 mg/L. The mesh-type catalyst will be easily applied for the continuous wastewater treatment because it does not need filtration for recovery.