Tags

Type your tag names separated by a space and hit enter

Innovatively employing magnetic CuO nanosheet to activate peroxymonosulfate for the treatment of high-salinity organic wastewater.
J Environ Sci (China). 2020 Feb; 88:46-58.JE

Abstract

Magnetic CuO nanosheet (Mag-CuO), as a cheap, stable, efficient and easily separated peroxymonosulfate (PMS) activator, was prepared by a simple one-step precipitation method for the removal of organic compounds from salt-containing wastewater. The experiments showed that the removal efficiencies of various organic pollutants including Acid Orange 7, Methylene Blue, Rhodamine B and atrazine in a high-salinity system (0.2 mol/L Na2SO4) with the Mag-CuO/PMS process were 95.81%, 74.57%, 100% and 100%, respectively. Meanwhile, Mag-CuO still maintained excellent catalytic activity in other salt systems including one or more salt components (NaCl, NaNO3, Na2HPO4, NaHCO3). A radical-quenching study and electron paramagnetic resonance analysis confirmed that singlet oxygen (1O2) was the dominant reactive oxygen species for the oxidation of organic pollutants in high-salinity systems, which is less susceptible to hindrance by background constituents in wastewater than radicals (•OH or SO4•-). The surface hydroxylation of the catalyst and catalytic redox cycle including Cu and Fe are responsible for the generation of 1O2. The developed Mag-CuO catalyst shows good application prospects for the removal of organic pollutants from saline wastewater.

Authors+Show Affiliations

Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.Construction Management Department, Tianjin Eco-City Water Investment and Construction Co., Ltd., Tianjin 300457, China.Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China. Electronic address: huangwenli@nankai.edu.cn.Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China. Electronic address: dongfangl@nankai.edu.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31862079

Citation

Li, Zhendong, et al. "Innovatively Employing Magnetic CuO Nanosheet to Activate Peroxymonosulfate for the Treatment of High-salinity Organic Wastewater." Journal of Environmental Sciences (China), vol. 88, 2020, pp. 46-58.
Li Z, Sun Y, Huang W, et al. Innovatively employing magnetic CuO nanosheet to activate peroxymonosulfate for the treatment of high-salinity organic wastewater. J Environ Sci (China). 2020;88:46-58.
Li, Z., Sun, Y., Huang, W., Xue, C., Zhu, Y., Wang, Q., & Liu, D. (2020). Innovatively employing magnetic CuO nanosheet to activate peroxymonosulfate for the treatment of high-salinity organic wastewater. Journal of Environmental Sciences (China), 88, 46-58. https://doi.org/10.1016/j.jes.2019.07.011
Li Z, et al. Innovatively Employing Magnetic CuO Nanosheet to Activate Peroxymonosulfate for the Treatment of High-salinity Organic Wastewater. J Environ Sci (China). 2020;88:46-58. PubMed PMID: 31862079.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Innovatively employing magnetic CuO nanosheet to activate peroxymonosulfate for the treatment of high-salinity organic wastewater. AU - Li,Zhendong, AU - Sun,Yanmei, AU - Huang,Wenli, AU - Xue,Cheng, AU - Zhu,Yan, AU - Wang,Qianwen, AU - Liu,Dongfang, Y1 - 2019/07/25/ PY - 2019/03/26/received PY - 2019/07/08/revised PY - 2019/07/16/accepted PY - 2019/12/22/entrez PY - 2019/12/22/pubmed PY - 2020/5/8/medline KW - CuO nanosheet KW - Magnetic separation KW - Peroxymonosulfate activation KW - Saline wastewater KW - Singlet oxygen ((1)O(2)) SP - 46 EP - 58 JF - Journal of environmental sciences (China) JO - J Environ Sci (China) VL - 88 N2 - Magnetic CuO nanosheet (Mag-CuO), as a cheap, stable, efficient and easily separated peroxymonosulfate (PMS) activator, was prepared by a simple one-step precipitation method for the removal of organic compounds from salt-containing wastewater. The experiments showed that the removal efficiencies of various organic pollutants including Acid Orange 7, Methylene Blue, Rhodamine B and atrazine in a high-salinity system (0.2 mol/L Na2SO4) with the Mag-CuO/PMS process were 95.81%, 74.57%, 100% and 100%, respectively. Meanwhile, Mag-CuO still maintained excellent catalytic activity in other salt systems including one or more salt components (NaCl, NaNO3, Na2HPO4, NaHCO3). A radical-quenching study and electron paramagnetic resonance analysis confirmed that singlet oxygen (1O2) was the dominant reactive oxygen species for the oxidation of organic pollutants in high-salinity systems, which is less susceptible to hindrance by background constituents in wastewater than radicals (•OH or SO4•-). The surface hydroxylation of the catalyst and catalytic redox cycle including Cu and Fe are responsible for the generation of 1O2. The developed Mag-CuO catalyst shows good application prospects for the removal of organic pollutants from saline wastewater. SN - 1001-0742 UR - https://www.unboundmedicine.com/medline/citation/31862079/Innovatively_employing_magnetic_CuO_nanosheet_to_activate_peroxymonosulfate_for_the_treatment_of_high_salinity_organic_wastewater_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1001-0742(19)30942-8 DB - PRIME DP - Unbound Medicine ER -