Recent advances in the chemical oxidation of gaseous volatile organic compounds (VOCs) in liquid phase

Changming Li; Li He; Xiaolong Yao; Zhiliang Yao

doi:10.1016/j.chemosphere.2022.133868

Recent advances in the chemical oxidation of gaseous volatile organic compounds (VOCs) in liquid phase

Chemosphere. 2022 May:295:133868. doi: 10.1016/j.chemosphere.2022.133868. Epub 2022 Feb 4.

Authors

Changming Li¹, Li He¹, Xiaolong Yao¹, Zhiliang Yao²

Affiliations

¹ School of Ecology and Environment, Beijing Technology and Business University, Beijing, 100048, China; State Environmental Protection Key Laboratory of Food Chain Pollution Control, School of Ecology and Environment, Beijing Technology and Business University, Beijing, 100048, China.
² School of Ecology and Environment, Beijing Technology and Business University, Beijing, 100048, China; State Environmental Protection Key Laboratory of Food Chain Pollution Control, School of Ecology and Environment, Beijing Technology and Business University, Beijing, 100048, China. Electronic address: yaozhl@th.btbu.edu.cn.

PMID: 35131275
DOI: 10.1016/j.chemosphere.2022.133868

Abstract

The chemical oxidation of gaseous volatile organic compounds (VOCs) in liquid phase may possess great advantages in its high removal efficiency, mild conditions, good reliability, wide applicability, and little potential secondary pollution, which has aroused extensive research interests in the past decade. This Overview Article summarizes the latest achievements to eliminate VOCs by chemical oxidation in liquid phase including gas-liquid mass transfer, homogeneous/heterogeneous oxidation, electrochemical oxidation, and coupling technologies. Important research contributions are highlighted in terms of mass transfer, catalytic materials, removal/mineralization efficiency, and reaction mechanism to evaluate their potential industrial applications. The current challenges and future strategies are discussed from the viewpoint of the deep degradation of refractory VOC substrates and their intermediates. It is anticipated that this review will attract more attention toward the development and application of chemical oxidation methods to clear complex industrial organic exhaust gas.

Keywords: Catalysis; Chemical oxidation; Coupling technology; Gas-liquid mass transfer; Volatile organic compounds.

Publication types

Review

MeSH terms

Catalysis
Gases
Oxidation-Reduction
Reproducibility of Results
Volatile Organic Compounds* / chemistry

Substances

Gases
Volatile Organic Compounds