期刊
RSC ADVANCES
卷 10, 期 42, 页码 25073-25088出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ra02916e
关键词
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资金
- Science and Engineering Research Board [SERB] [ECR/2017/001222]
- University Grants Commission [UGC] [F.4-5(201 FRP)/2015(BSR)]
This report presents the superior visible-light-driven photocatalytic response of novel 2D/2D BiOCl/WS2(BWX) hybrid nanosheet heterojunctions prepared by a simple solution based sonochemical technique. These BW(X)hybrid nanosheets are composed of 2D transition metal dichalcogenide material WS(2)and BiOCl nanosheets. The comparative study of photocatalytic activity of BiOCl and BiOCl/WS(2)hybrid nanosheets is carried outviaphotodegradation of Malachite Green (MG) and photoreduction of heavy metal ion Cr(vi) under visible light irradiation. The quantum efficiency of the samples is estimated in terms of the incident photon to electron conversion efficiency (IPCE) measurements. Nearly 98.4% of the MG degradation was achieved over BiOCl/WS2(2%) photocatalyst in 45 min of irradiation. BiOCl/WS2(2%) hybrid nanosheet catalyst showed the highest external quantum efficiency (EQE) in both the UV and visible regimes. This accomplishment demonstrated the promise of commercial application of the 2D/2D BiOCl/WS2(2%) hybrid nanosheet photocatalyst.
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