Effect of Al doping on the photocatalytic activity of ZnO nanoparticles decorated on CNTs and graphene: Solvothermal synthesis and study of experimental parameters

doi:10.1016/j.mssp.2020.105584

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	Effect of Al doping on the photocatalytic activity of ZnO nanoparticles decorated on CNTs and graphene: Solvothermal synthesis and study of experimental parameters
	Ahmad, Irshad 4; Shukrullah, Shazia 4; Ahmad, Mukhtar 5; Ahmed, Ejaz 5; Naz, Muhammad Yasin 4; Akhtar, Muhammad Shoaib 6; Khalid, N.R.1; Hussain, Abid 3; Hussain, Iqbal 2
刊名	Materials Science in Semiconductor Processing
	2021-03-01
卷号	123
关键词	Aluminum Azo dyes Catalysts Degradation Ethylene Ethylene glycol Graphene II-VI semiconductors Irradiation Organic solvents Oxide minerals Photocurrents Reusability Synthesis (chemical) Zinc oxide ZnO nanoparticles Degradation efficiency Experimental parameters Initial dye concentration Operational conditions Operational parameters Solvothermal synthesis Sunlight irradiation Transient photocurrents
ISSN号	13698001
DOI	10.1016/j.mssp.2020.105584
英文摘要	With the motive of the improvement of the photocatalytic activity in the visible region and high inhibition of electron-hole pairs recombination rate, we presented a facile single step solvothermal route synthesized pure ZnO, Al doped ZnO, Al doped ZnO/CNTs and Al doped ZnO/graphene composite using ethylene glycol as solvent and reducing agent. The as-synthesized photocatalysts were characterized by XRD, SEM, TEM, EDX, BET, UV–Vis DRS, PL, transient photocurrent response and EIS techniques. The experimental results for the photocatalytic Congo red degradation confirmed the successful incorporation of Al, CNTs and graphene into the lattice of ZnO and showed that Al doped ZnO/graphenecomposite revealed the highest photocatalytic activity of 100% within 60 min of simulated sunlight irradiation compared with pure ZnO, Al doped ZnO and Al doped ZnO/CNTs. The effect of operational parameters such as graphene loading, catalyst dose, initial pH, initial dye concentration, light intensity, oxidants, cations and anions on the photocatalytic activity of the optimum photocatalyst (Al doped ZnO/graphene) was also studied. The results of the operational parameters verified that 50 mg/L of Congo red could be completely degraded at graphene loading: 7 wt%, initial pH: 9, light intensity: 300 W/m2, catalyst dose: 0.7 g/L over 50 min sunlight irradiation. Under the effect of optimum operational conditions, five times recycle experiments revealed negligible decline in the degradation efficiency of Al doped ZnO/graphene catalyst and confirmed its efficient reusability and stability. © 2020 Elsevier Ltd
WOS研究方向	Engineering ; Materials Science ; Physics
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000604245200007
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/147181]
专题	兰州理工大学
作者单位	1.Department of Physics, University of Gujrat, Pakistan; 2.Department of Physics, GC. University Faisal Abad, Pakistan 3.Department of Physics, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan; 64200, Pakistan; 4.Department of Physics, University of Agriculture, Faisalabad; 38040, Pakistan; 5.Department of Physics, Bahauddin Zakariya University, Multan; 60800, Pakistan; 6.School of Computer and Communication, Lanzhou University of Technology, Lanzhou; 10731, China;
推荐引用方式 GB/T 7714	Ahmad, Irshad,Shukrullah, Shazia,Ahmad, Mukhtar,et al. Effect of Al doping on the photocatalytic activity of ZnO nanoparticles decorated on CNTs and graphene: Solvothermal synthesis and study of experimental parameters[J]. Materials Science in Semiconductor Processing,2021,123.
APA	Ahmad, Irshad.,Shukrullah, Shazia.,Ahmad, Mukhtar.,Ahmed, Ejaz.,Naz, Muhammad Yasin.,...&Hussain, Iqbal.(2021).Effect of Al doping on the photocatalytic activity of ZnO nanoparticles decorated on CNTs and graphene: Solvothermal synthesis and study of experimental parameters.Materials Science in Semiconductor Processing,123.
MLA	Ahmad, Irshad,et al."Effect of Al doping on the photocatalytic activity of ZnO nanoparticles decorated on CNTs and graphene: Solvothermal synthesis and study of experimental parameters".Materials Science in Semiconductor Processing 123(2021).