Sepiolite-Supported WS Nanosheets for Synergistically Promoting Photocatalytic Rhodamine B Degradation
Catalysts, ISSN: 2073-4344, Vol: 12, Issue: 11
2022
- 3Citations
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- 1Mentions
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Most Recent News
New Nanosheets Study Findings Have Been Reported from Hebei University of Technology (Sepiolite-Supported WS [ [2] ] Nanosheets for Synergistically Promoting Photocatalytic Rhodamine B Degradation)
2022 NOV 30 (NewsRx) -- By a News Reporter-Staff News Editor at Nanotech Daily -- Fresh data on nanosheets are presented in a new report.
Article Description
Pristine tungsten disulfide (WS) nanosheets are extremely prone to agglomeration, leading to blocked active sites and the decrease of catalytic activity. In this work, highly dispersed WS nanosheets were fabricated via a one-step in situ solvothermal method, using sepiolite nanofibers as a functional carrier. The ammonium tetrathiotungstate was adopted as W and S precursors, and N,N-dimethylformamide could provide a neutral reaction environment. The electron microscope analysis revealed that the WS nanosheets were stacked compactly in the shape of irregular plates, while they were uniformly grown on the surface of sepiolite nanofibers. Meanwhile, the BET measurement confirmed that the as-prepared composite has a larger specific surface area and is more mesoporous than the pure WS. Due to the improved dispersion of WS and the synergistic effect between WS and the mesoporous sepiolite mineral which significantly facilitated the mass transport, the WS/sepiolite composite exhibited ca. 2.6 times the photocatalytic efficiency of the pure WS for rhodamine B degradation. This work provides a potential method for low-cost batch preparation of high-quality 2D materials via assembling on natural materials.
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