Synthetic organic compounds degradation by dual radical/non-radical peroxymonosulfate with copper oxide as efficient heterogeneous activator

Fu，Caixia1; Yan，Miao1; Ma，Hongrui2; Zhang，Shuwen4; Yang，Ge4; Tian，Hailin3; Yang，Jingxin2; Wang，Zhongming1; Zhu，Shunni1; Bhatt，Kalpana5; Song，Wei3

2023-05-01

10.1016/j.jtice.2023.104839

Journal of the Taiwan Institute of Chemical Engineers   Impact Factor & Quartile

1876-1070

Background: Synthetic organic compounds (SOCs) degradation in PMS system activated by heterogeneous catalyst based on copper has drawn great attention in water treatment process. Methods: Copper oxide (CuO) was employed as the heterogeneous activator for PMS owing to the excellent performance one-electron transformation to degrade SOCs represented by three common organic contaminations of SMX, CBZ, and ATZ. Scavenging experiments and EPR detection were conducted to explore the various reactive species. Moreover, the responsibility of copper in different valence for SOCs degradation also has been investigated. Finally, the influence of different reaction parameter on SOCs degradation also were explored including reactants concentration (PMS and CuO), initial pH, and water matrices of bicarbonate (HCO) and natural organic matters (NOM). Significant findings: Various reactive species generation including SO, •OH, and O have been confirmed for SOCs degradation in CuO/PMS system with the dual radical/non-radical reactions. The primary SMX degradation was dominant for non-radical reaction approach while that of CBZ and ATZ was radical approach. This study confirmed the feasibility and potential of CuO serving as the efficient heterogeneous activator for PMS activation and provided a sustainable promising technology for water environment protection.

Copper oxide Organic pollutants degradation PMS Radical/non-radical approaches

English

Others

China Postdoctoral Science Foundation[2022M720841];National Natural Science Foundation of China[52200088];

2-s2.0-85152116198

Scopus

1.Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou,510640,China
2.Key Laboratory for Water Quality and Conservation of the Pearl River Delta,Ministry of Education,Institute of Environmental Research at Greater Bay,Guangzhou University,Guangzhou,510006,China
3.School of Civil and Transportation Engineering,Guangdong University of Technology,Guangzhou,510006,China
4.School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
5.Department of Food Science,Purdue University,West Lafayette,47907,United States

Fu，Caixia,Yan，Miao,Ma，Hongrui,et al. Synthetic organic compounds degradation by dual radical/non-radical peroxymonosulfate with copper oxide as efficient heterogeneous activator[J]. Journal of the Taiwan Institute of Chemical Engineers,2023,146.

Fu，Caixia.,Yan，Miao.,Ma，Hongrui.,Zhang，Shuwen.,Yang，Ge.,...&Song，Wei.(2023).Synthetic organic compounds degradation by dual radical/non-radical peroxymonosulfate with copper oxide as efficient heterogeneous activator.Journal of the Taiwan Institute of Chemical Engineers,146.

Fu，Caixia,et al."Synthetic organic compounds degradation by dual radical/non-radical peroxymonosulfate with copper oxide as efficient heterogeneous activator".Journal of the Taiwan Institute of Chemical Engineers 146(2023).