Catalytic wet air oxidation of phenols over porous plate Cu-based catalysts

被引：27

作者：

Lai, Chujun ^{[1
]}

He, Tianqu ^{[1
]}

Li, Xuewen ^{[1
]}

Chen, Fang ^{[2
]}

Yue, Linhai ^{[2
]}

Hou, Zhaoyin ^{[1
,3
]}

机构：

[1] Zhejiang Univ, Dept Chem, Key Lab Biomass Chem Engn, Minist Educ, Hangzhou 310028, Peoples R China

[2] Zhejiang Univ, Dept Chem, Hangzhou 310028, Peoples R China

[3] Zhejiang Univ, Ctr Chem Frontier Technol, Dept Chem, Hangzhou 310028, Peoples R China

来源：

APPLIED CLAY SCIENCE | 2019年 / 181卷

基金：

中国国家自然科学基金;

关键词：

Phenol; Degradation; Catalytic wet air oxidation; Cu catalyst; LAYERED DOUBLE HYDROXIDE; WASTE-WATER; PHOTOELECTROCATALYTIC DEGRADATION; PEROXIDE OXIDATION; PERFORMANCE; DYE; ELECTROCATALYST; ULTRASOUND; GENERATION; HYDROGEN;

D O I：

10.1016/j.clay.2019.105253

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Catalytic wet air oxidation (CWAO) of phenol has attracted much attention because of its high versatility and remarkable economy-scale advantages. In this submission, a series of M-3-Al-500 catalysts (with M = Cu, Mn, Fe, Ni, Zn and Co) were prepared via controlled calcination of layered double hydroxides, and tested in the CWAO of high concentrated phenol (2.1 g/L) with air under mild condition (120 degrees C and 1.0 MPa). It was found that Cu-3-Al-500 was the most active among these tested catalysts as phenol converted completely within 2 h. Characterizations indicated that the performance of Cu-based catalyst could be attributed to the redox transitions of Cu2+/Cu+ and/or the formation of H2O2 in reaction mixture. At the same time, the surface acidity of Cu-3-Al-500 can also accelerate the degradation of phenol. The possible degradation mechanism of phenol over Cu-based catalyst was proposed.

引用

页数：7