微乳液法合成不同维度氧化锌纳米材料及其光催化活性

doi:10.3724/SP.J.1077.2010.01034

无机材料学报 ›› 2010, Vol. 25 ›› Issue (10): 1034-1040.DOI: 10.3724/SP.J.1077.2010.01034 CSTR: 32189.14.SP.J.1077.2010.01034

微乳液法合成不同维度氧化锌纳米材料及其光催化活性

滕洪辉^{1, 2}, 徐淑坤¹, 王猛¹

(1. 东北大学化学系, 沈阳110004; 2. 吉林师范大学环境科学与工程学院, 四平136000)

收稿日期:2009-12-26 修回日期:2010-05-23 出版日期:2010-10-20 网络出版日期:2010-09-26
基金资助:
吉林省教育厅科学计划项目(2009023);吉林省中小企业局资助项目; 四平市科技发展计划项目(2007012)

Controllable Synthesis of Different Dimensions Nano-ZnO by Microemulsion and Photocatalytic Activity

TENG Hong-Hui^{1, 2}, XU Shu-Kun¹, WANG Meng¹

(1. Department of Chemistry, Northeastern University, Shenyang 110004, China; 2. College of Environmental Science and Engineering, Jilin Normal University, Siping 136000, China)

Received:2009-12-26 Revised:2010-05-23 Published:2010-10-20 Online:2010-09-26
Supported by:
Education Bureau of Jilin Province? (2009023); Corporation Bureau of Jilin Province; Science and Technology Bureau of Siping (2007012)

摘要/Abstract

摘要： 利用表面活性剂JFC、正辛醇、环己烷和水溶液组成的反相微乳液体系, 通过调控水相/油相体积比(R), 分别合成出?30~80nm球形, 直径80nm×350nm棒状, 厚度50nm片状结构氧化锌纳米材料. XRD、SEM和HRTEM分析表明, 合成的氧化锌纳米材料虽然维度不同, 但晶体结构相近, 初步分析其合成机理为: 微乳液水核形状控制了合成材料维度, 水核之间反应物动态交换的特点和氧化锌在水溶液中各向异性生长的特性共同决定了纳米材料晶体结构; 微乳液电导率变化趋势与水核形状密切相关, 可依据其合成不同形态氧化锌纳米材料; 以甲基橙水溶液为模拟污染物评价不同维度纳米氧化锌光催化性能, 结果表明, 一维棒状纳米氧化锌具有更高的光催化活性.

关键词: 微乳液, 控制合成, 纳米氧化锌, 光催化性能

Abstract: The zinc oxide nano-materials with three structures including 30?80nm spherical, length of 350nm rod and thickness of 50nm flake were synthesised at different volume ratio of water and oil phase (R) by the reverse phase microemulsion which consist of surfactant JFC, 1-octanol, cyclohexane and aqueous solution. The microstructures of zinc oxide nano-materials were observed by XRD, SEM, and HRTEM. The results show that the dimensions of zinc oxide nano materials are controlled by the shape of water core, and their crystal structures are controlled by the dynamic exchange of reactants between water cores and ZnO anisotropic growth in aqueous solution. Because the microemulsion conductivity is closely related to the water core shape, different morphology of zinc oxide nano-materials can be synthesized by adjusting conductivity. In addition, the photocatalytic properties of the different dimensions ZnO were evaluated with methyl orange aqueous solution as simulate pollutant. The result show that 1-D nano-ZnO has higher photocatalytic activity than 0-D and 2-D nano-ZnO materials.

Key words: microemulsion template, controllable synthese, nano-ZnO, photocatalytic activity

中图分类号:

TQ174

滕洪辉, 徐淑坤, 王猛. 微乳液法合成不同维度氧化锌纳米材料及其光催化活性[J]. 无机材料学报, 2010, 25(10): 1034-1040.

TENG Hong-Hui, XU Shu-Kun, WANG Meng. Controllable Synthesis of Different Dimensions Nano-ZnO by Microemulsion and Photocatalytic Activity[J]. Journal of Inorganic Materials, 2010, 25(10): 1034-1040.

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微乳液法合成不同维度氧化锌纳米材料及其光催化活性

Controllable Synthesis of Different Dimensions Nano-ZnO by Microemulsion and Photocatalytic Activity

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