Role of cerium (Ce) dopant on structural, optical and photocatalytic properties of MgO nanoparticles by wet chemical route

被引：26
作者：
Srisuvetha, V. T. [1 ,2 ,3 ]
Rayar, S. L. [2 ,3 ]
Shanthi, G. [1 ,3 ]
机构：
[1] Res Ctr Womens Christian Coll, Dept Phys, Nagercoil 629001, Tamil Nadu, India
[2] Judes Coll, Dept Phys, Thoothoor 629157, Tamil Nadu, India
[3] Manonmaniam Sundaranar Univ, Tirunelveli 627012, Tamil Nadu, India
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2020年 / 31卷 / 04期
关键词：
MICROWAVE SYNTHESIS; WO3; NANOPARTICLES; WATER; SNO2; PERFORMANCE; FABRICATION; NANORODS; TIO2; PURE;
D O I：
10.1007/s10854-019-02823-7
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Ce doped MgO nanoparticles with various doping concentrations of cerium ion were prepared by the sol-gel method. Both pure and Ce doped MgO nanoparticles were characterized by powder X-ray diffraction (XRD), Scanning electron microscope (SEM), Field emission scanning electron microscope, Energy-dispersive X-ray spectroscopy, UV-Vis diffuse reflectance spectroscopy, and Photoluminescence spectra analysis. XRD and SEM results suggest that both pristine and Ce doped MgO nanoparticles were in face centered cubic structure with individual spherical shaped nanoparticles with average particles sizes in the range of 20-30 nm. The band gap energy of pure MgO was significantly reduced from 3.81 eV to 3.22 eV. The Ce doped MgO catalyst showed outstanding photocatalytic degradation activity such as high efficiency (95%) and high stability (only loss 3.5%) towards phenol dye under visible light irradiation. The improved photocatalytic mechanism of MgO by Ce doping is also discussed.
引用
收藏
页码：2799 / 2808
页数：10
相关论文
共 24 条
[1]   Photoinduced reactivity of titanium dioxide [J].
Carp, O ;
Huisman, CL ;
Reller, A .
PROGRESS IN SOLID STATE CHEMISTRY, 2004, 32 (1-2) :33-177
[2]  
Chaudhari SP., 2017, Am. J. Mater. Synth. Process, V2, P97
[3]   High performance Ce-doped ZnO nanorods for sunlight-driven photocatalysis [J].
Chouchene, Bilel ;
Ben Chaabane, Tahar ;
Balan, Lavinia ;
Girot, Emilien ;
Mozet, Kevin ;
Medjahdi, Ghouti ;
Schneider, Raphael .
BEILSTEIN JOURNAL OF NANOTECHNOLOGY, 2016, 7 :1338-1349
[4]   ELECTROCHEMICAL PHOTOLYSIS OF WATER AT A SEMICONDUCTOR ELECTRODE [J].
FUJISHIMA, A ;
HONDA, K .
NATURE, 1972, 238 (5358) :37-+
[5]  
Hao YF, 2005, J PHYS CHEM B, V109, P11204, DOI [10.1021/jp050545l, 10.1021/jp0505451]
[6]   Synthesis of polyethylene glycol (PEG) assisted tungsten oxide (WO3) nanoparticles for L-dopa bio-sensing applications [J].
Hariharan, V. ;
Radhakrishnan, S. ;
Parthibavarman, M. ;
Dhilipkumar, R. ;
Sekar, C. .
TALANTA, 2011, 85 (04) :2166-2174
[7]   One-step microwave synthesis of pure and Mn doped WO3 nanoparticles and its structural, optical and electrochemical properties [J].
Karthik, M. ;
Parthibavarman, M. ;
Kumaresan, A. ;
Prabhakaran, S. ;
Hariharan, V. ;
Poonguzhali, R. ;
Sathishkumar, S. .
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2017, 28 (09) :6635-6642
[8]   Dosimeter properties of Ce-doped MgO transparent ceramics [J].
Kato, Takumi ;
Okada, Go ;
Kawaguchi, Noriaki ;
Yanagida, Takayuki .
JOURNAL OF LUMINESCENCE, 2017, 192 :316-320
[9]   TiO2-assisted photocatalytic degradation of azo dyes in aqueous solution: kinetic and mechanistic investigations - A review [J].
Konstantinou, IK ;
Albanis, TA .
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY, 2004, 49 (01) :1-14
[10]   Enhanced visible light harnessing and oxygen vacancy promoted N, S co-doped CeO2 nanoparticle: a challenging photocatalyst for Cr(VI) reduction [J].
Mansingh, S. ;
Padhi, D. K. ;
Parida, K. M. .
CATALYSIS SCIENCE & TECHNOLOGY, 2017, 7 (13) :2772-2781
123