Synthesis and photocatalytic activity of Gd doped ZnO nanoparticles for enhanced degradation of methylene blue under visible light

被引:107
作者
Selvaraj, Saravanan [1 ]
Mohan, M. Krishna [1 ]
Navaneethan, M. [1 ,2 ]
Ponnusamy, S. [1 ]
Muthamizhchelvan, C. [1 ]
机构
[1] SRM Inst Sci & Technol, Dept Phys & Nanotechnol, Ctr Mat Sci & Nanodevices, Kattankulathur 603203, India
[2] SRM Inst Sci & Technol, Nanotechnol Res Ctr, Kattankulathur 603203, India
关键词
ZnO; X; Ray diffraction; Photocatalysis; Visible light; AG;
D O I
10.1016/j.mssp.2019.104622
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
The technique of facile co-precipitation was employed to prepare the pure ZnO and Gd doped ZnO photocatalysts. The physio-chemical properties of the prepared samples were analysed through various analytical techniques. The X-ray diffraction analysis clearly shows that higher amount of Gd dopant creates the secondary phase in addition to normal peaks of ZnO crystals. The visible light absorption increases with increasing the Gd amount in ZnO which is evident from UV-Vis DRS analysis. The as synthesized 3% Gd doped ZnO exhibits the highest photocatalytic activity on Methylene blue dye degradation under visible light irradiation compared to other photocatalysts. The enhanced degradation activity of the photocatalyst demonstrates the improved visible light absorption of the materials due to the incorporation of Gd ions into the ZnO lattice. The possible reaction mechanism and degradation pathway of the photocatalyst has been discussed in detail and the stability of the catalyst have been confirmed by recycle process.
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页数:8
相关论文
共 22 条
[1]   Structural, optical and magnetic properties of Gadolinium-doped ZnO nanoparticles [J].
Aggarwal, Nupur ;
Kaur, Kamaldeep ;
Vasishth, Ajay ;
Verma, N. K. .
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2016, 27 (12) :13006-13011
[2]  
[Anonymous], NANOFLOWER LIKE YTTR
[3]  
[Anonymous], EFFECT GD DOPING STR
[4]   Novel g-C3N4 nanosheets/CDs/BiOCl photocatalysts with exceptional activity under visible light [J].
Asadzadeh-Khaneghah, Soheila ;
Habibi-Yangjeh, Aziz ;
Yubuta, Kunio .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2019, 102 (03) :1435-1453
[5]   Rare earth ions doped ZnO: Synthesis, characterization and preliminary photoactivity assessment [J].
Cerrato, Erik ;
Gionco, Chiara ;
Berruti, Ilaria ;
Sordello, Fabrizio ;
Calza, Paola ;
Paganini, Maria Cristina .
JOURNAL OF SOLID STATE CHEMISTRY, 2018, 264 :42-47
[6]  
Eddy D. R., 2018, Journal of Physics: Conference Series, V1080, DOI 10.1088/1742-6596/1080/1/012013
[7]   Factors influencing formation of highly dispersed BaTiO3 nanospheres with uniform sizes in static hydrothermal synthesis [J].
Gao, Jiabing ;
Shi, Haiyue ;
Dong, Huina ;
Zhang, Rui ;
Chen, Deliang .
JOURNAL OF NANOPARTICLE RESEARCH, 2015, 17 (07)
[8]   Ag and CuO impregnated on Fe doped ZnO for bacterial inactivation under visible light [J].
Gupta, Rimzhim ;
Eswar, Neerugatti KrishnaRao ;
Modak, Jayant M. ;
Madras, Giridhar .
CATALYSIS TODAY, 2018, 300 :71-80
[9]   Physicochemical and photocatalytic studies of Ln3+- ZnO for water disinfection and wastewater treatment applications [J].
Ibrahim, Marwa M. ;
Asal, Saad .
JOURNAL OF MOLECULAR STRUCTURE, 2017, 1149 :404-413
[10]   Morphological evolution of Cu doped ZnO for enhancement of photocatalytic activity [J].
Kadam, A. N. ;
Kim, Taek Gon ;
Shin, Dong Su ;
Garadkar, K. M. ;
Park, Jinsub .
JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 710 :102-113