Enhanced photocatalytic activity of Fe doped ZnO nanocrystals under sunlight irradiation

被引：96
作者：
Bousslama, Wiem [1 ]
Elhouichet, Habib [1 ,2 ]
Ferid, Mokhtar [1 ]
机构：
[1] Ctr Natl Rech Sci Mat, Lab Physicochim Mat Mineraux & Applicat, BP 95, Hammam Lif 2050, Tunisia
[2] Univ Tunis El Manar, Fac Sci Tunis, Dept Phys, Tunis 2092, Tunisia
来源：
OPTIK | 2017年 / 134卷
关键词：
ZnO nanocrystals; Sol-gel method; Optical properties; Photocatalysis; OPTICAL-PROPERTIES; THIN-FILMS; DEGRADATION; MORPHOLOGY;
D O I：
10.1016/j.ijleo.2017.01.025
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Iron (Fe) doped ZnO nanocrystals (NCs) were synthesized by sol-gel method and characterized by X-ray diffraction (XRD), Raman spectroscopy, UV-vis diffuses reflectance spectroscopy and photoluminescence (PL). XRD analysis demonstrates that all prepared samples present pure hexagonal wurtzite structure. The nanocrystals size was found to decrease with Fe doping concentration. The strain does not change monotonically and takes its maximum value for doping 3% Fe. Raman study indicates the good crystallinity of all ZnO samples with apparition of new peaks relative of amorphous Fe2O3 phases. UV-visible measurements show a reduction in band gap of NCs with increase in Fe content. PL spectra evidence formation of Fe-zn-V-zn complexes for 3% Fe doping. ZnO: Fe NCs were found to be good photocatalyst for sunlight degradation of Rhodamine B (RhB). The photocatalytic activity is optimized to Fe doping concentration of 3%. (C) 2017 Elsevier GmbH. All rights reserved.
引用
收藏
页码：88 / 98
页数：11
相关论文
共 49 条
[1]   Mg doping induced high structural quality of sol-gel ZnO nanocrystals: Application in photocatalysis [J].
Abed, Chayma ;
Bouzidi, Chaker ;
Elhouichet, Habib ;
Gelloz, Bernard ;
Ferid, Mokhtar .
APPLIED SURFACE SCIENCE, 2015, 349 :855-863
[2]   Structure and optical properties of Zn1-xFexO thin films prepared by ultrasonic spray pyrolysis [J].
Alver, U. ;
Kilinc, T. ;
Bacaksiz, E. ;
Nezir, S. .
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2007, 138 (01) :74-77
[3]   SINGLE-CRYSTAL RAMAN SPECTRA OF NEARLY OPAQUE MATERIALS - IRON(III) OXIDE AND CHROMIUM(III) OXIDE [J].
BEATTIE, IR ;
GILSON, TR .
JOURNAL OF THE CHEMICAL SOCIETY A -INORGANIC PHYSICAL THEORETICAL, 1970, (06) :980-&
[4]   Hydrothermal synthesis, phase structure, optical and photocatalytic properties of Zn2SnO4 nanoparticles [J].
Ben Ali, Monaam ;
Barka-Bouaifel, Fatiha ;
Elhouichet, Habib ;
Sieber, Brigitte ;
Addad, Ahmed ;
Boussekey, Luc ;
Ferid, Mokhtar ;
Boukherroub, Rabah .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2015, 457 :360-369
[5]  
Bousslama W., 2012, JPN J APPL PHYS, pG13
[6]   Enhancement of the intensity ratio of ultraviolet to visible luminescence with increased excitation in ZnO nanoparticles deposited on porous anodic alumina [J].
Bousslama, Wiem ;
Sieber, Brigitte ;
Elhouichet, Habib ;
Gelloz, Bernard ;
Addad, Ahmed ;
Ferid, Mokhtar .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2013, 46 (50)
[7]   DEPENDENCE OF ENERGY-GAP ON X AND T IN ZN1-XMNXSE - THE ROLE OF EXCHANGE INTERACTION [J].
BYLSMA, RB ;
BECKER, WM ;
KOSSUT, J ;
DEBSKA, U ;
YODERSHORT, D .
PHYSICAL REVIEW B, 1986, 33 (12) :8207-8215
[8]   Effects of In, Al and Sn dopants on the structural and optical properties of ZnO thin films [J].
Caglar, Yasemin ;
Ilican, Saliha ;
Caglar, Mujdat ;
Yakuphanoglu, Fahrettin .
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2007, 67 (3-4) :1113-1119
[9]  
Chahmat N., 2012, Journal of Modern Physics, V3, P1781, DOI [10.4236/jmp.2012.311222, DOI 10.4236/JMP.2012.311222]
[10]   Structural, morphological and optical study of Li doped ZnO thin films on Si (100) substrate deposited by pulsed laser deposition [J].
Chand, Prakash ;
Gaur, Anurag ;
Kumar, Ashavani ;
Gaur, Umesh Kumar .
CERAMICS INTERNATIONAL, 2014, 40 (08) :11915-11923
12345