Visible light in situ driven electron accumulation at the Ti-Mn-O-3 sites of TiO2 hollow spheres for photocatalytic hydrogen production

doi:10.1039/d2nj02628g

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Visible light in situ driven electron accumulation at the Ti-Mn-O-3 sites of TiO2 hollow spheres for photocatalytic hydrogen production
	Zhang, Yujiao 4,5; Wang, Yan 3; Zhao, Dan 4; Wang, Baoyu 2; Pu, Ling 1; Fan, Meng ; Liang, Xingtang 2; Yin, Yanzhen 2; Hu, Zhao 5; Yan, Ximing 2
刊名	NEW JOURNAL OF CHEMISTRY
	2022-07-01
ISSN号	1144-0546
DOI	10.1039/d2nj02628g
英文摘要	The application of electron-accumulation sites in the photocatalytic splitting of water for the hydrogen-production process represents a prospective strategy for the efficient use of solar energy. Herein, electron-accumulation sites (Ti-Mn-O-3) anchored on TiO2 hollow spheres (THS) were facilely prepared by a two-step calcination method involving the modification of Mn species and surface oxygen vacancies (Ovs). The optimized photocatalyst (TM30) showed excellent activity for photocatalytic water splitting (lambda >= 420 nm). The Ti-Mn-O-3 sites that were constructed on the surface of THS owing to electron transfer from the Mn atom to the Ti atom and three O atoms around Ovs were rich in electrons under in situ visible-light-driven conditions and constituted electron-accumulation sites, which not only greatly regulated the surface potential and band gap to enhance the separation efficiency of photogenerated charge carriers and the visible-light-responsive capability of the compound, but also improved the dissociation for the adsorption of H2O to reduce Gibbs free energies for hydrogen adsorption as well. This study demonstrates a novel approach for the efficient use of solar energy to produce hydrogen toward water splitting.
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000830031000001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159478]
专题	石油化工学院
作者单位	1.Guizhou Acad Agr Sci, Inst Anim Husb & Vet Med, Guiyang 550005, Peoples R China 2.Beibu Gulf Univ, Guangxi Key Lab Green Chem Mat & Safety Technol, Qinzhou 535011, Peoples R China; 3.Cent South Univ, Coll Chem & Chem Engn, Hunan Prov Key Lab Micro Nano Mat Interface Sci, Changsha 410083, Hunan, Peoples R China; 4.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 5.Guizhou Univ, Key Lab Green Pesticide & Agr Bioengn, State Key Lab Breeding Base Green Pesticide & Agr, State Local Joint Lab Comprehensive Utilizati B, Guiyang 550025, Guizhou, Peoples R China;
推荐引用方式 GB/T 7714	Zhang, Yujiao,Wang, Yan,Zhao, Dan,et al. Visible light in situ driven electron accumulation at the Ti-Mn-O-3 sites of TiO2 hollow spheres for photocatalytic hydrogen production[J]. NEW JOURNAL OF CHEMISTRY,2022.
APA	Zhang, Yujiao.,Wang, Yan.,Zhao, Dan.,Wang, Baoyu.,Pu, Ling.,...&Yan, Ximing.(2022).Visible light in situ driven electron accumulation at the Ti-Mn-O-3 sites of TiO2 hollow spheres for photocatalytic hydrogen production.NEW JOURNAL OF CHEMISTRY.
MLA	Zhang, Yujiao,et al."Visible light in situ driven electron accumulation at the Ti-Mn-O-3 sites of TiO2 hollow spheres for photocatalytic hydrogen production".NEW JOURNAL OF CHEMISTRY (2022).