Size Controlled Synthesis and Characterization of V2O5/Al2O3 Nanocomposites

被引：12

作者：

Usharani, S. ^{[1
]}

Rajendran, V ^{[1
]}

机构：

[1] Presidency Coll, Dept Phys, Madras 05, Tamil Nadu, India

来源：

COLLOID AND INTERFACE SCIENCE COMMUNICATIONS | 2018年 / 24卷

关键词：

V2O5/Al2O3; Mixed solvents; Controlled size; Optical; Photoluminescence; OPTICAL-PROPERTIES; PHOTOCATALYTIC ACTIVITY; SELECTIVE PHOTOOXIDATION; WATER/ETHYLENE GLYCOL; ALPHA-ALUMINA; LIQUID-PHASE; NANOPARTICLES; TEMPERATURE; AL2O3; CATALYSTS;

D O I：

10.1016/j.colcom.2018.03.001

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：

V2O5/Al2O3 nanocomposites were synthesized by the wet chemical method, using mixed solvents such as water/ethanol and water/ethylene glycol (EG). The XRD results confirmed the crystalline nature and the presence of the orthorhombic structure of V2O5 and hexagonal phase of alpha-Al2O3 nanocomposites. Transmission electron microscopy (TEM) analysis showed the agglomerated cluster nanoparticles in water/ethanol mediated V2O5/Al2O3 nanocomposite; whereas well dispersed spherical nanoparticles with controlled particle size in water/ethylene glycol mediated V2O5/Al2O3 nanocomposite. The Fourier transform infrared (FTIR) results confirmed the formation of a V-O and Al-O bond. Photoluminescence (PL) studies revealed that V2O5/Al2O3 nanocomposites contain high intense peaks in the UV and visible region which are likely to have originated from the oxygen vacancies; and are potential material for electronic device applications and catalytic activities. The band gap energies of the samples prepared for water/ethanol and water/ethylene glycol obtained by the tauc plots are 3.6 and 3.62 eV respectively.

引用

页码：7 / 12

页数：6

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