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Direct Growth of Nano-Worm-Like Cu2s on Copper Mesh As a Hierarchical 3D Catalyst for Fenton-Like Degradation of an Imidazolium Room-Temperature Ionic Liquid in Water Publisher Pubmed



Jiang XY1 ; Kwon E2 ; Wen JC3 ; Bedia J4 ; Thanh BX5 ; Ghotekar S6 ; Lee J7 ; Tsai YC1 ; Ebrahimi A8, 9 ; Lin KYA1
Authors
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Authors Affiliations
  1. 1. Department of Environmental Engineering & Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, Taichung, 402, Taiwan
  2. 2. Department of Earth Resources and Environmental Engineering, Hanyang University, SeongDong-Gu, Seoul, South Korea
  3. 3. National Yunlin University of Science and Technology, Yunlin County, Douliu, Taiwan
  4. 4. Chemical Engineering Department, Facultad de Ciencias, Universidad Autonoma de Madrid, Campus Cantoblanco, Madrid, E-28049, Spain
  5. 5. Faculty of Environment and Natural Resources, Ho Chi Minh City University of Technology (HCMUT), Ho Chi Minh City, 700000, Viet Nam
  6. 6. Department of Chemistry, Smt. Devkiba Mohansinhji Chauhan College of Commerce & Science, University of Mumbai, Dadra and Nagar Haveli (UT), Silvassa, 396 230, India
  7. 7. Department of Global Smart City & School of Civil, Architectural Engineering, and Landscape Architecture, Sungkyunkwan University, Suwon, 16419, South Korea
  8. 8. Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
  9. 9. Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran

Source: Journal of Colloid and Interface Science Published:2023


Abstract

The increasing consumption of room-temperature ionic liquids (RTILs) inevitably releases RTILs into the water environment, posing serious threats to aquatic ecology due to the toxicities of RTILs. Thus, urgent needs are necessitated for developing useful processes for removing RTILs from water, and 1-butyl-3-methylimidazolium chloride (C4mimCl), the most common RTIL, would be the most representative RTIL for studying the removal of RTILs from water. As advanced oxidation processes with hydrogen peroxide (HP) are validated as useful approaches for eliminating emerging contaminants, developing advantageous heterogeneous catalysts for activating HP is the key to the successful degradation of C4mim. Herein, a hierarchical structure is fabricated by growing Cu2S on copper mesh (CSCM) utilizing CM as a Cu source. Compared to its precursor, CuO@CM, this CSCM exhibited tremendously higher catalytic activity for catalyzing HP to degrade C4mim efficiently because CSCM exhibits much more superior electrochemical properties and reactive sites, allowing CSCM to degrade C4mim rapidly. CSCM also exhibits a smaller Ea of C4mim elimination than all values in the literature. CSCM also shows a high capacity and stability for activating HP to degrade C4mim in the presence of NaCl and seawater. Besides, the mechanistic investigation of C4mim elimination by CSCM-activated HP has also been clarified and ascribed to OH and 1O2. The elimination route could also be examined and disclosed in detail through the quantum computational chemistry, confirming that CSCM is a useful catalyst for catalyzing HP to degrade RTILs. © 2023
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