Synthesis, characterization and photocatalytic activity of NiO-Bi2O3 nanocomposites

被引：99

作者：

Hameed, Abdul ^{[1
,2
]}

Gombac, Valentina ^{[1
]}

Montini, Tiziano ^{[1
]}

Graziani, Mauro ^{[1
]}

Fornasiero, Paolo ^{[1
]}

机构：

[1] Univ Trieste, Ctr Excellence Nanostruct Mat, Dept Chem, ICCOM,CNR,Trieste Res Unit,INSTM, I-34127 Trieste, Italy

[2] Natl Ctr Phys, Ctr Nanosci, Islamabad 44000, Pakistan

来源：

CHEMICAL PHYSICS LETTERS | 2009年 / 472卷 / 4-6期

关键词：

HETEROGENEOUS PHOTOCATALYSIS; WATER-PURIFICATION; TIO2; OXIDATION; OXYGEN; BORON;

D O I：

10.1016/j.cplett.2009.03.017

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：

NiO-Bi2O3 nanocomposite was synthesized and characterized. XRD analysis and UV-vis spectroscopy revealed that the two components of the composite retain their independent identity. Nevertheless, the smaller mean crystallite sizes of the NiO and Bi2O3 in the nanocomposite, compared to pure components, suggests the presence of an interaction between the two phases. Consistently the surface area of the nanocomposite is significantly higher with respect to that of the pure components. Photocatalytic activity was estimated for the decolorization of methylene blue and methyl orange. The nanocomposite, NiO-Bi2O3 showed significantly higher activity compared to its components in the pure phase. (C) 2009 Elsevier B. V. All rights reserved.

引用

页码：212 / 216

页数：5