Aluminium and cerium co-doped ZnO nanoparticles: Facile and inexpensive synthesis and visible light photocatalytic performances

doi:10.1016/j.jre.2019.11.006

	Aluminium and cerium co-doped ZnO nanoparticles: Facile and inexpensive synthesis and visible light photocatalytic performances
	Ahmad, Irshad 1; Akhtar, Muhammad Shoaib 2; Ahmed, Ejaz 1; Ahmad, Mukhtar 1
	2021-02
发表期刊	Journal of Rare Earths
ISSN	10020721
卷号	39 期号:2 页码:151-159
摘要	Facile combustion route synthesized Al and Ce co-doped ZnO nanoparticles photocatalysts were characterized using XRD, SEM, BET, EDS, UV-visible DRS, PL, photocurrent and EIS techniques. XRD and SEM analyses identify that crystallite and particle size is reduced from 13.26 to 11.88 nm with introduction of Al and Ce into ZnO which assists inhibiting the recombination of photo generated charge carriers. UV-visible DRS spectra indicate that optical assimilation of ZnO is significantly increased to visible region (∼406 nm) and band gap reduces from 3.18 to 3.06 eV with introduction of Al and Ce co-dopants. Electrochemical impedance spectroscopy analysis under visible light illumination confirms the enhancement in visible light activity of Al and Ce co-doped ZnO nanoparticles as photocatalysts. The enhanced activity of Al and Ce co-doped ZnO photocatalyst can be ascribed to enhanced light assimilation, high surface area and efficient charge transfer process. Our results reveal that by incorporating precise amount of Al (∼2%) and Ce (∼2%) into ZnO, a highly efficient catalyst can be synthesized that have degraded almost 95% methyl orange (MO) dye in just 45 min. Further, the influence of various operational parameters such as solution pH, catalyst dose, dye concentration, airflow rate and light intensity on photodecomposition of MO was evaluated. Furthermore, a possible mechanism for Al and Ce modified ZnO was proposed and designed photocatalysts demonstrates good stability in aqueous medium. © 2019 Chinese Society of Rare Earths
关键词	Aluminum metallography Azo dyes Carrier mobility Catalysts Cerium Charge transfer Combustion Electrochemical impedance spectroscopy Energy gap II-VI semiconductors Light Metal nanoparticles Nanoparticles Oxide minerals Particle size Particle size analysis Photocatalytic activity Rare earths Synthesis (chemical) X ray diffraction Zinc oxide ZnO nanoparticles Charge transfer process Dye concentration Efficient catalysts Operational parameters Photo-decomposition Photocatalytic performance Possible mechanisms Visible-light activity
DOI	10.1016/j.jre.2019.11.006
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Chemistry
WOS类目	Chemistry, Applied
WOS记录号	WOS:000617764700006
出版者	Editorial Office of Chinese Rare Earths
EI入藏号	20201508392959
EI主题词	Aluminum
EI分类号	482.2 Minerals - 541.1 Aluminum - 547.2 Rare Earth Metals - 712.1 Semiconducting Materials - 741.1 Light/Optics - 761 Nanotechnology - 801 Chemistry - 802.2 Chemical Reactions - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 951 Materials Science
来源库	Compendex
引用统计	被引频次：18[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/147243
专题	兰州理工大学
通讯作者	Ahmad, Irshad
作者单位	1.Bahauddin Zakariya Univ, Dept Phys, Multan 60800, Pakistan; 2.Lanzhou Univ Technol, Sch Comp & Commun, Lanzhou 730000, Peoples R China
第一作者单位	理学院
通讯作者单位	理学院
第一作者的第一单位	理学院
推荐引用方式 GB/T 7714	Ahmad, Irshad,Akhtar, Muhammad Shoaib,Ahmed, Ejaz,et al. Aluminium and cerium co-doped ZnO nanoparticles: Facile and inexpensive synthesis and visible light photocatalytic performances[J]. Journal of Rare Earths,2021,39(2):151-159.
APA	Ahmad, Irshad,Akhtar, Muhammad Shoaib,Ahmed, Ejaz,&Ahmad, Mukhtar.(2021).Aluminium and cerium co-doped ZnO nanoparticles: Facile and inexpensive synthesis and visible light photocatalytic performances.Journal of Rare Earths,39(2),151-159.
MLA	Ahmad, Irshad,et al."Aluminium and cerium co-doped ZnO nanoparticles: Facile and inexpensive synthesis and visible light photocatalytic performances".Journal of Rare Earths 39.2(2021):151-159.