摘要
本文以聚苯乙烯(PS)胶球为模板,通过一步水浴法结合煅烧后处理制备了不同比例的In_2O_3/ZrO_2-TiO_2空心球状复合材料(简写为In_2O_3/ZrO_2-TiO_2-H)。通过X-射线衍射、扫描电镜、X-射线光电子能谱、紫外-可见漫反射吸收光谱和氮气吸附-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,In_2O_3/ZrO_2-TiO_2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。将In_2O_3与ZrO_2-TiO_2复合后其光吸收性能呈现了一定的红移现象,且In_2O_3/ZrO_2-TiO_2-H(1∶4)的比表面积较大(66.92m^2·g^(-1))。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,In_2O_3/ZrO_2-TiO_2-H(1∶4)表现出较好的光催化性能,其光催化活性高于P25、ZrO_2、In_2O_3/ZrO_2-TiO_2及其他体积比的In_2O_3/ZrO_2-TiO_2-H。
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 structures,compositions and morphologies of as-prepared composites were characterized by XRD,XPS,UV-Vis/DRS,SEM and N2absorption-desorption measurements. The results showed that In2O3/ZrO2-TiO2 composites had a hollow spherical structure after being treated by PS template,and the spherical wall was formed by the nanoparticles. After compounding In2O3 with ZrO2-TiO2, its optical absorption had red-shifted slightly,moreover,the specific surface area of In2O3/ZrO2-TiO2-H（ 1∶ 4） hollow sphere was larger（ 66. 92 m^2·g^-1）. In2O3/ZrO2-TiO2-H（ 1 ∶ 4） showed higher photocatalytic activity in the degradation of methyl orange（ MO） under multimodes photocatalysis,compared with P25,ZrO2,In2O3/ZrO2-TiO2,and other ratio In2O3/ZrO2-TiO2-H.
作者
张晶晶
李莉
张鑫悦
周黔龙
郝玉婷
Zhang Jingjing Li Li Zhang Xinyue Zhou Qianlong Hao Yuting(College of Materials Science and Engineering College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006)
出处
《化学通报》
CSCD
北大核心
2017年第10期935-941,975,共8页
Chemistry
基金
国家自然科学基金项目(21376126)
黑龙江省自然科学基金项目(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项目(LBH-Z11108)
黑龙江省政府博士后科研启动经费项目(LBH-Q13172)
齐齐哈尔大学研究生创新计划项目(YJSCX2015-ZD03)资助
