Journal
CHEM
Volume 4, Issue 6, Pages 1359-1372Publisher
CELL PRESS
DOI: 10.1016/j.chempr.2018.03.002
Keywords
-
Categories
Funding
- National Natural Science Foundation of China [21773062, 21577036, 21377038, 5171101651]
- State Key Research Development Program of China [2016YFA0204200]
- Shanghai Education Development Foundation [14CG30]
- Shanghai Municipal Education Commission [16JC1401400]
- Shanghai Pujiang Program [17PJD011]
- Fundamental Research Funds for the Central Universities [22A201514021]
- American Chemical Society Petroleum Research Fund [(55904-ND10]
Ask authors/readers for more resources
Advanced oxidation processes (AOPs) are widely proposed for treating persistent pollutants by the, OH radicals generated from H2O2 decomposition. However, their broad applications in practical settings have been hampered by the low efficiency of H2O2 decomposition. Here, we report that metal sulfides (MoS2, WS2, Cr2S3, CoS2, PbS, or ZnS) can serve as excellent co-catalysts to greatly increase the efficiency of H2O2 decomposition and significantly decrease the required dosage of H2O2 and Fe2+ in AOPs. Unsaturated S atoms on the surface of metal sulfides can capture protons to form H2S and expose metallic active sites with reductive properties to accelerate the rate-limiting step of Fe3+/Fe2+ conversion. The efficiency of AOPs involving co-catalysts can be further enhanced by visible-light illumination thanks to the sensitization of organic pollutants. This discovery is expected to drive great advances in the use of AOPs for large-scale practical applications such as environmental remediation.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available