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

	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 1; Shukrullah, Shazia 1; Ahmad, Mukhtar 2; Ahmed, Ejaz 2; Naz, Muhammad Yasin 1; Akhtar, Muhammad Shoaib 3; Khalid, N. R.4; Hussain, Abid 5; Hussain, Iqbal 6
	2021-03-01
发表期刊	Materials Science in Semiconductor Processing
ISSN	13698001
卷号	123
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
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
DOI	10.1016/j.mssp.2020.105584
收录类别	EI ; SCIE ; CPCI-S
语种	英语
WOS研究方向	Engineering ; Materials Science ; Physics
WOS类目	Engineering, Electrical & Electronic ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000604245200007
出版者	Elsevier Ltd
EI入藏号	20204909583128
EI主题词	Photocatalytic activity
EI分类号	482.2 Minerals - 541.1 Aluminum - 701.1 Electricity: Basic Concepts and Phenomena - 761 Nanotechnology - 802.2 Chemical Reactions - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally
来源库	Compendex
引用统计	被引频次：31[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/147181
专题	兰州理工大学
通讯作者	Ahmad, Irshad
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.Univ Gujrat, Dept Phys, Gujrat, Pakistan; 5.Khwaja Fareed Univ Engn & Informat Technol, Dept Phys, Rahim Yar Khan 64200, Pakistan; 6.GC Univ Faisal Abad, Dept Phys, Faisalabad, Pakistan
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,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).