期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 59, 期 33, 页码 13968-13976出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202006059
关键词
advanced oxidation processes; aromatic organic pollutants; environmental chemistry; molybdenum disulfide; three-dimensional structures
资金
- State Key Research Development Program of China [2016YFA0204200]
- Shanghai Municipal Science and Technology Major Project [2018SHZDZX03]
- Program of Introducing Talents of Discipline to Universities [B16017]
- National Natural Science Foundation of China [21822603, 21811540394, 5171101651, 21677048, 21773062, 21577036]
- Fundamental Research Funds for the Central Universities [22A201514021]
3D-MoS2 can adsorb organic molecules and provide multidimensional electron transport pathways, implying a potential application for environment remediation. Here, we study the degradation of aromatic organics in advanced oxidation processes (AOPs) by a 3D-MoS2 sponge loaded with MoS2 nanospheres and graphene oxide (GO). Exposed Mo4+ active sites on 3D-MoS2 can significantly improve the concentration and stability of Fe2+ in AOPs and keep the Fe3+/Fe2+ in a stable dynamic cycle, thus effectively promoting the activation of H2O2/peroxymonosulfate (PMS). The degradation rate of organic pollutants in the 3D-MoS2 system is about 50 times higher than without cocatalyst. After a 140 L pilot-scale experiment, it still maintains high efficiency and stable AOPs activity. After 16 days of continuous reaction, the 3D-MoS2 achieves a degradation rate of 120 mg L-1 antibiotic wastewater up to 97.87 %. The operating cost of treating a ton of wastewater is only US$ 0.33, suggesting huge industrial applications.
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