SYNTHESIS, CHARACTERIZATION, AND PHOTOCATALYTIC BEHAVIOUR OF NANOCRYSTALLINE ZnO, TiO2 AND ZnO/TiO2 NANOCOMPOSITES

被引：0

作者：

Rajendar, V. ^{[1
,5
]}

Raghu, Y. ^{[2
]}

Rajitha, B. ^{[3
]}

Chakra, C. S. ^{[2
]}

Rao, K. V. ^{[4
]}

Park, S. H. ^{[1
]}

机构：

[1] Yeungnam Univ, Dept Elect Engn, Gyongsan 38541, Gyeongsangbuk D, South Korea

[2] Jawaharlal Nehru Technol Univ Hyderabad, Inst Sci & Technol, Ctr Nanosci & Technol, Hyderabad 500085, Telangana State, India

[3] JNTUH, BVRIT Hyderabad Coll Engn Women, Dept Phys, Hyderabad 500085, Telangana State, India

[4] Johns Hopkins Univ, Sch Med, Dept Radiol, Baltimore, MD 21205 USA

[5] BV Raju Inst Technol, Dept Phys, Medak 502313, Telangana State, India

来源：

JOURNAL OF OVONIC RESEARCH | 2017年 / 13卷 / 03期

关键词：

Nanoparticles; Nanocomposites; Photocatalytic activity; Efficiency; NANOPARTICLES; DEGRADATION; REMOVAL; DYES;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

ZnO and TiO2 nanoparticles (NPs) and ZnO/TiO2 nanocomposites (NCs) were prepared by a solution combustion synthesis method. The samples were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), and ultraviolet-visible spectroscopy. The photocatalytic activity of the ZnO/TiO2 NC under sunlight for the degradation of methylene blue (MB) and crystal violet (CV) was compared with that of the individual ZnO and TiO(2)NPs. The effects of the sample concentration and contact time on the degradation efficiency of both dyes were investigated. The contact time was found to have greater impact on the degradation of the dyes than the sample concentration used for degradation. The ZnO/TiO2NC had 5% greater dye removal efficiency than the individual ZnO or TiO(2)NPs.

引用

页码：101 / 111

页数：11

共 19 条

[1] Influence of the surface-to-bulk defects ratio of ZnO and TiO2 on their UV-mediated photocatalytic activity [J].