Vanadium-doped ZnO nanorods: magnetic and enhanced H2 properties

被引:2
作者
Bathalavaram, Poornaprakash [1 ]
Puneetha, Peddathimula [2 ]
Ramu, Singiri [1 ]
Jeon, Jooyoung [1 ]
Kwon, Min-Woo [1 ]
Lee, Dong-Yeon [2 ]
Mallem, Siva Pratap Reddy [3 ]
Kim, Young Lae [1 ]
Park, Kwi-Il [3 ]
机构
[1] Gangneung Wonju Natl Univ, Dept Elect Engn, Kangnung 25457, South Korea
[2] Yeungnam Univ, Coll Mech & IT Engn, Dept Robot & Intelligent Machine Engn, Gyongsan 38541, South Korea
[3] Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea
来源
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2022年 / 128卷 / 12期
基金
新加坡国家研究基金会;
关键词
Zinc oxide; Nanorods; Paramagnetism; Hydrogen evolution; HYDROGEN EVOLUTION; PHOTOCATALYTIC ACTIVITY;
D O I
10.1007/s00339-022-06219-z
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The production of one-dimensional nanorods (NRs) has been capturing decent curiosity due to the peculiar electronic, spintronic, and hydrogen evolution properties. Consequently, herein, diluted magnetic semiconducting ZnO:V (0, 1, and 2 at%) NRs have been prepared through a typical hydrothermal method. SEM images depicted that the prepared samples belonged to nanorods. V ion incorporation into the ZnO matrix was confirmed through XRD, Raman, and XPS studies. A trivial decreasing of optical band gap with the V doping was determined via Kubelka-Munk plots. The doping enhances the paramagnetic nature of ZnO as function of V doping. Importantly, these NRs were measured for H-2 production through H2O splitting by the solar simulator. The ZnO:V (2 at%) portrayed the best H-2 production capability (25,188 mu mol h(-1) g(-1)) in 5 h than other samples. The plausible reasons behind the improved H-2 evolution could be discussed in detail. Till date, this is the first ever report on H-2 evolution of ZnO:V nanorods.
引用
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页数:5
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