中国粉体技术2011，Vol.17Issue(1)：9-13,5.DOI:10.3969/j.issn.1008-5548.2011.01.003
纳米ZnO-γ-Al2O3复合粉体的制备及其光催化性能
Preparation and Photocatalytic Performance of ZnO-γ-Al2O3 Composite Nano-particles
摘要
Abstract
The different ZnO loadings ZnO-γ-Al2O3 composite nano-particles were prepared by homogeneous precipitation method when the γ-Al2O3 was employed as supports. The structure, surface information and specific surface area of the composite nano-particles were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and N2 adsorption. The photocatalytic performance of the composite nano-particles were appraised using nonylphenyl poly ( oxyethylene ) ether ( NPE10) as the model pollutants. The results indicated that ZnO was successfully loaded on the surface of γ-Al2O3 and the loading increased with the increase of ZnO content. ZnO thin films were uniformly immobilized on the surface of γ-Al2O3 and the composite nano-particles had the best photocatalytic performance when the mass ratio of ZnO and γ-Al2O3 was 2: 1. The influence of calcination temperature, dosage of the composite nano-particles on the photocatalytic performance were investigated. When the dosage of the composite nano-particles which was calcined at 300 ℃ was 0.3 g, it was found that the degradation rate reached more than 96％ when it was irradiated by the ultraviolet light for 4 h and more than 90％ when it was reused six times.关键词
纳米复合材料/负栽/光催化分类
通用工业技术引用本文复制引用
康如金,赵永红,杜志平,董海波..纳米ZnO-γ-Al2O3复合粉体的制备及其光催化性能[J].中国粉体技术,2011,17(1):9-13,5.基金项目
山西省重点实验室开放基金,编号:2008012013-11. （）
