Integrating electrodeposition with electrolysis for closed-loop resource utilization of battery industrial wastewater

Chen, Zhijie1,2; Wei, Wenfei1; Zou, Wensong1; Li, Jing1; Zheng, Renji1; Wei, Wei2; Bing-Jie Ni2; Chen, Hong1

2022-03-01

10.1039/d1gc04891k

GREEN CHEMISTRY   影响因子和分区

1463-9262

1463-9270

Traditional ab initio industrial wastewater treatment and utilization processes require high energy consumption and have high carbon emissions. Synergistically recovering critical elements, such as metals and hydrogen (H-2), from the process is crucial to innovate modern industrial wastewater treatment technologies toward lower carbon emission avenues. Herein, by integrating electrodeposition and water splitting process into battery industrial wastewater management, we have demonstrated a facile metal recycling and wastewater resource reutilization routine. The electrodeposited NiCoMn layered triple hydroxides (LTHs) possess a hierarchical nanoflower structure capable of acting as a bifunctional catalyst for post-electrodeposition (PE) wastewater splitting for H-2 production. The optimized wastewater-derived S-3||S-3 couple electrodes outperform the benchmark counterpart, Pt/C||RuO2, for PE wastewater electrolysis, with an H-2 production rate of 2.23 vs. 1.78 mg h(-1) at an applied potential of 1.8 V. A detailed mechanistic study reveals that metal species with lower valence states in LTHs account for high HER activity, while the in situ evolved amorphous metal (oxy)hydroxides act as the active sites for OER. This report presents an innovative strategy to simultaneously recycle critical metals and produce molecular H-2 from industrial wastewater, paving the way for industrial wastewater recycling that ensures optimal resource utilization with low carbon emissions and a modern vision of industrial ecology.

SCI ; EI

英语

第一 ; 通讯

National Natural Science Foundation of China[21777045,61875119] ; Foundation of Shenzhen Science, Technology and Innovation Commission (SSTIC)[2020231312,"JCYJ20190809144409460","JCYJ20200109141625078"] ; Natural Science Funds for Distinguished Young Scholar of Guangdong Province, China[2020B151502094] ; Australian Research Council (ARC)[FT160100195]

Chemistry ; Science & Technology - Other Topics

Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology

WOS:000772115800001

ROYAL SOC CHEMISTRY

20221611971651

Carbon ; Electric batteries ; Electrodeposition ; Electrodes ; Electrolysis ; Hydrogen production ; Metals ; Nickel compounds ; Ruthenium compounds ; Wastewater reclamation ; Wastewater treatment ; Water recycling

Industrial Wastes Treatment and Disposal:452.4 ; Gas Fuels:522 ; Energy Utilization:525.3 ; Electroplating:539.3.1 ; Electric Batteries:702.1 ; Electrochemistry:801.4.1 ; Chemical Reactions:802.2 ; Chemical Products Generally:804

CHEMISTRY

Web of Science

1.Southern Univ Sci & Technol, Sch Environm Sci & Engn, State Environm Protect Key Lab Integrated Surface, Shenzhen Key Lab Interfacial Sci & Engn Mat SKLIS, Shenzhen 518055, Peoples R China
2.Univ Technol Sydney, Ctr Technol Water & Wastewater, Sch Civil & Environm Engn, Sydney, NSW 2007, Australia

Chen, Zhijie,Wei, Wenfei,Zou, Wensong,et al. Integrating electrodeposition with electrolysis for closed-loop resource utilization of battery industrial wastewater[J]. GREEN CHEMISTRY,2022.

Chen, Zhijie.,Wei, Wenfei.,Zou, Wensong.,Li, Jing.,Zheng, Renji.,...&Chen, Hong.(2022).Integrating electrodeposition with electrolysis for closed-loop resource utilization of battery industrial wastewater.GREEN CHEMISTRY.

Chen, Zhijie,et al."Integrating electrodeposition with electrolysis for closed-loop resource utilization of battery industrial wastewater".GREEN CHEMISTRY (2022).