Sewage Sludge-Derived catalyst for extremely efficient electrocatalytic elimination of organic pollutants in water

Zhang, Haonan1; Chen, Shaoqing1,3; Zhang, Nianji1; Chen, Huihuang5; Yang, Yutong1; Tu, Yang1; Jiao, Chuanlai1; Xu, Zian1; Xia, Yu1; Suo, Hongri2; Li, Zesheng1; Liu, Chongxuan2; Wang, Hsing-Lin1,4,6

2023-08-01

10.1016/j.cej.2023.143777

CHEMICAL ENGINEERING JOURNAL   影响因子和分区

1385-8947

1873-3212

Electrochemical advanced oxidation processes (EAOPs) are promising technologies for the elimination of organic pollutants in water, but the high cost of the catalysts and treatment process restrict their large-scale application. Herein, highly efficient carbon-based catalysts for EAOPs were obtained by directly pyrolyzing low-cost sewage sludge, over which the elimination rates were up to 98% for methyl orange (MO) and 88% for tetracycline (TC). A precise electrochemical testing system demonstrated that the S-9/Ti electrode with 1.2 g catalyst loading owns the specific energy consumption value for 98% MO (5 mg/L) degradation was only 0.0112 kWh/g, and the value for 88% TC (1*10-4 M) degradation was only 0.0039 kWh/g, in 8 h. Furthermore, active species capture ex-periments demonstrated that the & BULL;OH and & BULL;O2- radicals produced over the catalysts were the main oxidants for the elimination of pollutants. This study broadens the horizon for the resource utilization of sewage sludge and provides a strategy to realize the concept of "treating pollution with waste".

Electrochemical advanced oxidation processes Sewage sludge N-doped nanocarbons Organic pollutants Specific energy consumption

SCI ; EI

英语

第一 ; 通讯

Department of Science and Tech- nology of Guangdong Province[CYJ20170817110652558] ; Shenzhen Basic Research Fund[2019B010941001] ; Key -Area Research and Development Program of Guang Dong Province[22022504] ; National Key Research, NSFC[22205153] ; National Natural Science Foundation of China[2018YFB0704100] ; Devel- opment Program of China[2018B030322001] ; Guangdong Provincial Key Laboratory of Energy Materials for Electric Power[2019QN01L353] ; Guangdong "Pearl River" Talent Plan[2021 M701553] ; null[2017ZT07Z479]

Engineering

Engineering, Environmental ; Engineering, Chemical

WOS:001053968500001

ELSEVIER SCIENCE SA

20232414222415

Azo dyes ; Catalysts ; Doping (additives) ; Energy efficiency ; Energy utilization ; Sewage sludge ; Water pollution ; Water treatment

Water Treatment Techniques:445.1 ; Sewage Treatment:452.2 ; Water Pollution:453 ; Energy Conservation:525.2 ; Energy Utilization:525.3 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Organic Compounds:804.1

ENGINEERING

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China
3.Soochow Univ, Coll Chem Chem Engn & Mat Sci, Innovat Ctr Chem Sci, Suzhou 215123, Jiangsu, Peoples R China
4.Southern Univ Sci & Technol, Key Univ Lab Highly Efficient Utilizat Solar Energ, Shenzhen 518055, Guangdong, Peoples R China
5.Shenzhen Univ, Coll Chem & Environm Engn, Shenzhen 518060, Peoples R China
6.Southern Univ Sci & Technol, Guangdong Prov Key Lab Energy Mat Elect Power, Shenzhen 518055, Peoples R China

Zhang, Haonan,Chen, Shaoqing,Zhang, Nianji,et al. Sewage Sludge-Derived catalyst for extremely efficient electrocatalytic elimination of organic pollutants in water[J]. CHEMICAL ENGINEERING JOURNAL,2023,469.

Zhang, Haonan.,Chen, Shaoqing.,Zhang, Nianji.,Chen, Huihuang.,Yang, Yutong.,...&Wang, Hsing-Lin.(2023).Sewage Sludge-Derived catalyst for extremely efficient electrocatalytic elimination of organic pollutants in water.CHEMICAL ENGINEERING JOURNAL,469.

Zhang, Haonan,et al."Sewage Sludge-Derived catalyst for extremely efficient electrocatalytic elimination of organic pollutants in water".CHEMICAL ENGINEERING JOURNAL 469(2023).