| 张晶晶,李莉,张鑫悦,周黔龙,郝玉婷.化学通报,2017,80(10):935-941,975. |
| 空心球形In2O3/ZrO2-TiO2纳米复合材料多模式光催化 |
| Multimode Photocatalysis of Hollow Spheres In2O3/ZrO2-TiO2 Nanocomposite |
| 投稿时间：2017-02-24 修订日期：2017-05-17 |
| DOI： |
| 中文关键词: 聚苯乙烯 一步法 空心球 In2O3/ZrO2-TiO2 多模式光催化 |
| 英文关键词:Polystyrene One-step method Hollow sphere In2O3/ZrO2-TiO2 Multimodes photocatalysis |
| 基金项目:国家自然科学基金项目(21376126), 黑龙江省自然科学基金资助项目(B201106), 黑龙江省教育厅科学技术研究项目(12511592), 黑龙江省政府博士后资助经费(LBH-Z11108), 黑龙江省政府博士后科研启动经费(LBH-Q13172), 齐齐哈尔大学研究生创新计划项目(YJSCX2015-ZD03） |
|
| 摘要点击次数: 2488 |
| 全文下载次数: 0 |
| 中文摘要: |
| 本文以聚苯乙烯胶球(PS)为模板,通过一步水浴法结合煅烧后处理制备了不同比例的空心球状复合材料In2O3/ZrO2-TiO2(简写In2O3/ZrO2-TiO2-H)。通过X-射线衍射(XRD)、扫描电子显微镜(SEM)、X-射线光电子能谱(XPS)、紫外-可见漫反射吸收光谱(UV-vis/DRS)和氮气吸附-脱附等测试手段对该系列复合材料的结构、组成和形貌进行了表征。结果表明,In2O3/ZrO2-TiO2复合材料经PS模板处理后呈现空心球状结构,球壁由纳米粒子堆积而成。In2O3/ZrO2-TiO2-H(1:4)空心球复合材料的比表面积较大(66.92 m2.g-1), 且In2O3和ZrO2-TiO2复合后其光吸收性能呈现了一定红移现象。同时,为了考察该复合材料的光催化性能,在多模式光催化条件下对甲基橙的降解情况进行了研究。结果表明,In2O3/ZrO2-TiO2-H在Ti:Zr=4:1(体积比)的情况下表现出较好的光催化性能,其光催化活性高于P25,ZrO2,In2O3/ZrO2-TiO2及其他体积比的In2O3/ZrO2-TiO2-H。 |
| 英文摘要: |
| In this paper, using polystyrene (PS) spheres as the template, In2O3/ZrO2-TiO2 hollow spheres (In2O3/ZrO2-TiO2-H) with different proportions were prepared by one-step method combined with calcination treatment. The structure, composition and morphology of as-composite were well characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), ultraviolet-visible diffuse reflectance spectroscopy (UV-vis/DRS), scanning electron microscope (SEM) and N2 absorption-desorption measurements. The results showed that In2O3/ZrO2-TiO2 composite had hollow spherical structure after being treated by PS template and the spherical wall was formed by the nanoparticles. The specific surface area of In2O3/ZrO2-TiO2-H (1:4) hollow sphere was larger (66.92 m2.g-1), moreover, its optical absorption had red-shifted slightly after compounding In2O3 with ZrO2-TiO2. Compared with P25, ZrO2, In2O3/ZrO2-TiO2, and other ratioIn2O3/ZrO2-TiO2-H, In2O3/ZrO2-TiO2-H (1:4) showed higher photocatalytic activity in the degradation of MO under multimodes photocatalysis. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|