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    陈志刚, 张玉珠, 钱君超, 王盟盟, 陆秋月. 以硅藻为模板合成TiO2微胶囊及其可见光催化性能[J]. 机械工程材料, 2015, 39(6): 48-52. DOI: 10.11973/jxgccl201506010
    引用本文: 陈志刚, 张玉珠, 钱君超, 王盟盟, 陆秋月. 以硅藻为模板合成TiO2微胶囊及其可见光催化性能[J]. 机械工程材料, 2015, 39(6): 48-52. DOI: 10.11973/jxgccl201506010
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    CHEN Zhi-gang, ZHANG Yu-zhu, QIAN Jun-chao, WANG Meng-meng, LU Qiu-yue. Fabrication of TiO2 Capsules Using Diatoms as a Template and Their Photocatalytic Performance[J]. Materials and Mechanical Engineering, 2015, 39(6): 48-52. DOI: 10.11973/jxgccl201506010
    Citation: CHEN Zhi-gang, ZHANG Yu-zhu, QIAN Jun-chao, WANG Meng-meng, LU Qiu-yue. Fabrication of TiO2 Capsules Using Diatoms as a Template and Their Photocatalytic Performance[J]. Materials and Mechanical Engineering, 2015, 39(6): 48-52. DOI: 10.11973/jxgccl201506010
    shu

    以硅藻为模板合成TiO2微胶囊及其可见光催化性能

    Fabrication of TiO2 Capsules Using Diatoms as a Template and Their Photocatalytic Performance

      摘要
    • 摘要: 通过仿生方法, 以羽纹硅藻为模板, 经钛盐溶液浸渍、煅烧去除模板后制得直径为10 μm左右的多孔TiO2微胶囊, 研究了多孔TiO2微胶囊的结构特性以及其在可见光下降解亚甲基蓝溶液的催化性能。结果表明: 煅烧后得到的多孔TiO2微胶囊具有多孔结构和较大的比表面积, 并含有部分生物遗留下的氮元素; 多孔结构及氮元素的掺杂使得多孔TiO2微胶囊具有优良的可见光催化降解亚甲基蓝效果。

       

      Abstract: Porous TiO2 capsules in diameters of 10 μm were obtained through a simple infiltration of titanium salt followed by calcination process. Microstructure characteristics of TiO2 capsules and its degradation performance of methylene blue in visible light were also studied. The results revealed that the prepared TiO2 capsules possessed porous structure, large specific surface area and nitrogen left by diatom. The enhancement in photocatalytic degradation performance of methylene blue could be attributed to the doped nitrogen contained in the original diatom and porous structure.

       

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