Efficient hydrogen evolution by liquid phase plasma irradiation over Sn doped ZnO/CNTs photocatalyst

doi:10.1016/j.ijhydene.2021.06.147

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	Efficient hydrogen evolution by liquid phase plasma irradiation over Sn doped ZnO/CNTs photocatalyst
	Ahmad, Irshad 1; Shukrullah, Shazia 1; Naz, Muhammad Y.1; Ahmad, Mukhtar 2; Ahmed, Ejaz 2; Akhtar, Muhammad S.3; Rehman, Sajjad U.4; Makhlouf, Mohamed M.5
刊名	INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
	2021-08-23
卷号	46 期号:58 页码:30019-30030
关键词	Liquid phase plasma Hydrogen evolution Zinc oxide Carbon nanotubes Optical emission spectroscopy
ISSN号	0360-3199
DOI	10.1016/j.ijhydene.2021.06.147
英文摘要	In this study, the liquid phase plasma (LPP) was irradiated over pure zinc oxide (ZnO), strontium (Sn) doped ZnO, and Sn doped ZnO/CNTs photocatalysts for hydrogen evolution from pure water and from aqueous solution of water-methanol. The possible relationship between hydrogen evolution and optical emissions from LPP for activation of ZnO based photocatalysts was revealed. The role of carbon nanotubes (CNTs) as a support material for improved photocatalytic hydrogen evolution was also investigated in this study. The photocatalytic hydrogen evolution from water mixed methanol under LPP irradiation was compared with pure water splitting. The photolysis produced negligible amount of hydrogen due to minimal photodecomposition of water molecules under LPP irradiation. The plasma born reactive species also played crucial role in photolysis. However, the hydrogen evolution rate increased significantly in the presence of ZnO photocatalyst. Further improvement in hydrogen evolution rate was noticed on Sn doping of ZnO and compositing with CNTs. The highest hydrogen evolution rate of 11.46 mmh-1g-1 from water mixed methanol was achieved with Sn doped ZnO/CNTs photocatalyst. This hydrogen evolution rate from water-methanol solution was 9 times higher than from the splitting of pure water. This hydrogen evolution rate is attributed to excessive production of hydroxyl radicals, red shift in optical band gap of Sn doped ZnO/CNTs photocatalyst, slow electron-hole recombination and fast decomposition of methanol as sacrificial reagent. (c) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000685000200007
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148524]
专题	兰州理工大学
作者单位	1.Univ Agr Faisalabad, Dept Phys, Faisalabad 38040, Pakistan; 2.Bahauddin Zakariya Univ, Dept Phys, Multan 60800, Pakistan; 3.Lanzhou Univ Technol, Sch Comp & Commun, Lanzhou 10731, Peoples R China; 4.Namal Inst, Dept Elect Engn, Mianwali 42250, Pakistan; 5.Taif Univ, Ranyah Univ Coll, Dept Sci & Technol, POB 11099, At Taif 21944, Saudi Arabia
推荐引用方式 GB/T 7714	Ahmad, Irshad,Shukrullah, Shazia,Naz, Muhammad Y.,et al. Efficient hydrogen evolution by liquid phase plasma irradiation over Sn doped ZnO/CNTs photocatalyst[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2021,46(58):30019-30030.
APA	Ahmad, Irshad.,Shukrullah, Shazia.,Naz, Muhammad Y..,Ahmad, Mukhtar.,Ahmed, Ejaz.,...&Makhlouf, Mohamed M..(2021).Efficient hydrogen evolution by liquid phase plasma irradiation over Sn doped ZnO/CNTs photocatalyst.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,46(58),30019-30030.
MLA	Ahmad, Irshad,et al."Efficient hydrogen evolution by liquid phase plasma irradiation over Sn doped ZnO/CNTs photocatalyst".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 46.58(2021):30019-30030.