A comparative study on the structural, optical, electrochemical and photocatalytic properties of ZrO2 nanooxide synthesized by different routes

被引：68
|
作者：
Renuka, L. [1 ,3 ]
Anantharaju, K. S. [2 ,3 ]
Sharma, S. C. [3 ,4 ,5 ]
Nagabhushana, H. [6 ]
Vidya, Y. S. [7 ]
Nagaswarupa, H. P. [1 ]
Prashantha, S. C. [1 ]
机构：
[1] East West Inst Technol, Dept Sci, Res Ctr, Bengaluru 560091, India
[2] Dayananda Sagar Coll Engn, Dept Chem, Shavige Malleshwara Hills, Kumaraswamy Layout 560078, Bengaluru, India
[3] DSCE, Dr D Premachandra Sagar Ctr Adv Mat, Bengaluru 560078, India
[4] DSCE, Dept Mech Engn, Bengaluru 560078, India
[5] Indian Inst Informat Technol IIIT DWD, Dharwad 580029, Karnataka, India
[6] Tumkur Univ, Prof CNR Rao Ctr Adv Mat, Tumkur 572103, India
[7] Lal Bahadur Shastry Govt First Grade Coll, Dept Phys, Bengaluru 560032, India
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 695卷
关键词：
ZrO2; Surface area; Crystallinity; Sol gel route; Solution combustion route; TEM; ZIRCONIA THIN-FILMS; FACILE SYNTHESIS; PHOTOLUMINESCENCE PROPERTIES; HYDROTHERMAL SYNTHESIS; TETRAGONAL ZIRCONIA; CUBIC ZIRCONIA; WASTE-WATER; NANOPARTICLES; LUMINESCENCE; NANO;
D O I：
10.1016/j.jallcom.2016.10.126
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Nanooxide ZrO2 was synthesized by a simple solution combustion route utilizing urea as a fuel. For the comparative study, it has been additionally synthesized by sol gel route followed by calcination. The calcined ZrO2 nanaooxides were characterized by powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), brunauer-Emmett-Teller (BET), electron paramagnetic resonance (EPR) and UV-Visible spectrophotometry analysis (UV-Vis). Both the photocatalytic activity and the photoluminescence (PL) properties of the synthesized ZrO2 intensifies depending on the crystallinity. The EPR analysis confirms the presence of paramagnetic defects in both the samples. SGR shows enlarged photocatalytic activity with 97% decomposition of Methylene blue dye beneath ultraviolet radiation. This work may expand our understanding on combining effects of defects, tiny crystalline size, narrowing energy band gap and giant surface areas of ZrO2. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：382 / 395
页数：14
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