Red phosphorus decorated and doped TiO2 nanofibers for efficient photocatalytic hydrogen evolution from pure wate

doi:10.1016/j.apcatb.2019.117764

機構典藏 > College of Sciences > Graduate Institute & Department of Physics > Journal Article > Item 987654321/118670

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题名:	Red phosphorus decorated and doped TiO2 nanofibers for efficient photocatalytic hydrogen evolution from pure wate
作者:	Zhu, Y.;Li, J.;Dong, C. L.;Ren, J.;Huang, Y. C.;Zhao, D.;Cai, R.;Yang, X.;Lv, C.;Theis, W.;Bu, Y.;Han, W.;Shen, S.;Yang, D.
关键词:	Red phosphorus;Titanium oxide;Photocatalytic hydrogen evolution;Pure water splitting
日期:	2019-10-15
上传时间:	2020-06-01 12:12:24 (UTC+8)
摘要:	In this study, we report a facile strategy to prepare a new class of red phosphorus (RP) decorated and doped TiO2 (A: anatase and B: TiO2(B)) nanofibers with boosted photocatalytic hydrogen evolution reaction (HER) performance from pure water. The optimized TiO2(B)/RP and TiO2(A)/RP heterostructure exhibits significantly enhanced photocatalytic performances, with HER rate reaching 11.4 and 5.3 μmol h−1, respectively. The optical absorption of TiO2 is significantly extended to the visible light region after decoration of RP. And more oxygen vacancies (VO) were introduced by phosphorus doping in the TiO2(B)/RP than TiO2(A)/RP. The theoretical calculations illustrate the formation of VO can decrease the ratio of effective masses of electron to hole, which gives rise to promoted photoinduced charge separation and transfer. These results suggest that the boosted photocatalytic HER performance should be mainly attributed to the synergetic enhancement in light harvesting and charge separation enabled by RP deposition and P5+ doping.
關聯:	Applied Catalysis B: Environmental 255, 117764
DOI:	10.1016/j.apcatb.2019.117764
显示于类别:	[Graduate Institute & Department of Physics] Journal Article

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