Design and properties of Sn-Mn-Ce supported activated carbon composite as particle electrode for three-dimensionally electrochemical degradation of phenol

被引：34
作者：
Jia, Zhenzhen [1 ]
Zhao, Xin [1 ]
Yu, Changyuan [2 ]
Wan, Qiong [3 ]
Liu, Yunfang [1 ]
机构：
[1] Beijing Univ Chem Technol, Key Lab Carbon Fiber & Funct Polymers, Minist Educ, Beijing 100029, Peoples R China
[2] Beijing Univ Chem Technol, Sch Life Sci & Technol, Beijing 100029, Peoples R China
[3] Hunan Petrochem Vocat Technol Coll, Inst Petrochem Engn, Changsha 414009, Hunan, Peoples R China
来源：
ENVIRONMENTAL TECHNOLOGY & INNOVATION | 2021年 / 23卷
关键词：
Granular activated carbon; Particle electrode; Multicomponent catalyst; Wastewater treatment; Phenolic wastewater; Three-dimensionally electrocatalytic oxidation; ENHANCED ELECTROCATALYTIC REMOVAL; WASTE-WATER; RHODAMINE-B; BISPHENOL-A; OXIDATION; OZONATION; OPTIMIZATION; REACTOR;
D O I：
10.1016/j.eti.2021.101554
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Three-dimensionally (3D) electrochemical oxidation, as an advanced oxidation technology for wastewater treatment, has been widely used due to its many advantages. Granular material filled between two-dimensional electrodes as particle electrode is one of the key factors for high treatment efficiency. In order to improve the catalytic activity of granular activated carbon (GAC) as particle electrode for phenol degradation, the multi-component catalysts were supported on GAC by coprecipitation-calcination method. The effect of the supported component, working parameters (initial pH, electrolyte concentration and usage voltage) on the removal efficiency of chemical oxygen demand (COD) was investigated in detail. For the two-dimensional electrochemical oxidation, the COD removal efficiency is only 56.9% with only 32.0% of current efficiency. The COD removal rates for the 3D electrochemical oxidation with different particle electrodes are all greatly improved, especially for the Sn/Mn/Ce supported GAC. Its corresponding COD removal and current efficiency reach to about 75.6 and 72.6%, respectively. (C) 2021 Elsevier B.V. All rights reserved.
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页数：12
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