| Title: | Adsorption-enforced Fenton-like process using activated carbon-supported iron oxychloride catalyst for wet scrubbing of airborne dichloroethane |
| Author(s): | Fu C; Pan C; Chen T; Peng D; Liu Y; Wu F; Xu J; You Z; Li J; Luo L; |
| Address: | "School of Resource and Environmental Sciences, Hubei Key Lab of Bioresource and Environmental Biotechnology, Wuhan University, Wuhan 430079, China. State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China. School of Resource and Environmental Sciences, Hubei Key Lab of Bioresource and Environmental Biotechnology, Wuhan University, Wuhan 430079, China. Electronic address: lijinjun@whu.edu.cn. State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China. Electronic address: liting.luo@apm.ac.cn" |
| DOI: | 10.1016/j.chemosphere.2022.136193 |
| ISSN/ISBN: | 1879-1298 (Electronic) 0045-6535 (Linking) |
| Abstract: | "Wet scrubbing is a low-cost process for disposing of air pollutants. Nevertheless, this method is rarely used for the treatment of volatile organic compounds (VOCs) because of their poor water solubility. In this study, we used a unique wet scrubbing system containing H(2)O(2) and activated carbon (AC)-supported iron oxychloride (FeOCl) nanoparticles to remove airborne dichloroethane (DCE). The operating conditions of the wet scrubber were optimized, and the mechanism was explored. The results showed that the adsorption of dissolved DCE onto AC promoted its transfer from air to water, while the accumulation of DCE on AC facilitated its oxidation by *OH generated on FeOCl catalyst. The wet scrubber performed well at pH 3 and low H(2)O(2) concentrations. By pulsed or continuous dosing H(2)O(2), the cooperative adsorption-catalytic oxidation allowed long-term DCE removal from air. Benefiting from satisfactory cost-effectiveness, avoidance of toxic byproduct formation, and less corrosion and catalyst poisoning, wet scrubbers coupled with cooperative adsorption and heterogeneous advanced oxidation processes could have broad application potentials in VOC control" |
| Keywords: | Adsorption *Air Pollutants/analysis Catalysis Charcoal Ethylene Dichlorides Hydrogen Peroxide/chemistry Iron Compounds Oxidation-Reduction *Volatile Organic Compounds Water AOPs Air pollutants CVOCs Catalytic oxidation FeOCl/AC Wet scrubber; |
| Notes: | "MedlineFu, Chenchong Pan, Cong Chen, Tao Peng, Deqin Liu, Yaqian Wu, Feng Xu, Jing You, Zhixiong Li, Jinjun Luo, Liting eng England 2022/08/30 Chemosphere. 2022 Nov; 307(Pt 4):136193. doi: 10.1016/j.chemosphere.2022.136193. Epub 2022 Aug 26" |
