| 氮掺杂TiO2/HTi2NbO7纳米片复合材料的制备及其可见光催化性能 |
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| 引用本文： | 吕洪杰,高欣,孟承启,程婷,刘超,陈小卫,董鹏玉,孟强强,奚新国.氮掺杂TiO2/HTi2NbO7纳米片复合材料的制备及其可见光催化性能[J].无机化学学报,2019,35(3):422-432. |
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| 作者姓名： | 吕洪杰 高欣 孟承启 程婷 刘超 陈小卫 董鹏玉 孟强强 奚新国 |
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| 作者单位： | 江苏大学材料科学与工程学院;盐城工学院材料科学与工程学院;安徽理工大学材料科学与工程学院;江苏省新型环保重点实验室盐城工学院;盐城工学院化学化工学院 |
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| 基金项目： | 国家重点研发计划项目（No.2016YFC0209202），国家自然科学基金（No.21403184，51772258），住房和城乡建设部科学技术项目（No.2018-K1-004），江苏省自然科学基金（No.BK20160434），江苏省高校自然科学研究项目（No.14KJB150025，15KJA430007，14KJB430023），江苏省省级新型墙体材料专项基金（No.2016-14）和盐城市农业科技创新专项引导资金项目（No.YK2016031）资助 |
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| 摘 要： | 首先采用高温固相法制备层状前驱体CsTi_2NbO_7,通过与硝酸进行质子交换反应可得到层状HTi_2NbO_7,然后将HTi_2NbO_7分散在四丁基氢氧化铵(TBAOH)溶液中进行剥离反应,得到HTi_2NbO_7纳米片悬浮液,并进行冷冻干燥处理。以尿素为N源,将冷冻干燥的HTi_2NbO_7纳米片与TiO_2前驱体(钛酸异丙酯)混合物进行高温焙烧处理,成功地合成了新型氮掺杂Ti O_2/HTi_2NbO_7纳米片(N-TTN)复合材料。采用扫描电子显微镜(SEM)、高倍透射电子显微镜(HRTEM)、X射线衍射(XRD)、N_2吸附-脱附测试、X射线光电子能谱(XPS)、紫外可见吸收光谱(UV-Vis)及电化学测试等对材料的形貌、晶体结构、比表面积、孔分布和光吸收性能等进行表征与分析。研究发现锐钛矿型TiO_2纳米颗粒均匀地分散在HTi_2NbO_7纳米片表面,在两组分间形成异质结结构。通过在可见光下降解有机污染物罗丹明B(RhB)来评价不同样品的光催化活性。结果表明,N-TTN复合材料具有最优的光催化降解活性,活性的增强主要归功于N元素的掺杂、异质结的构筑、增大的比表面积和丰富的介孔结构。
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| 关 键 词： | TiO2 HTi2NbO7纳米片 氮掺杂 复合材料 光催化性能 |
| 收稿时间： | 2018/9/5 0:00:00 |
| 修稿时间： | 2018/12/3 0:00:00 |
Synthesis and Visible Light Photocatalytic Activity of Nitrogen-Doped TiO2/HTi2NbO7 Nanosheet Nanocomposite |
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| L&#; Hong-Jie,GAO Xin,MENG Cheng-Qi,CHENG Ting,LIU Chao,CHEN Xiao-Wei,DONG Peng-Yu,MENG Qiang-Qiang and XI Xin-Guo.Synthesis and Visible Light Photocatalytic Activity of Nitrogen-Doped TiO2/HTi2NbO7 Nanosheet Nanocomposite[J].Chinese Journal of Inorganic Chemistry,2019,35(3):422-432. |
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| Authors: | L&#; Hong-Jie GAO Xin MENG Cheng-Qi CHENG Ting LIU Chao CHEN Xiao-Wei DONG Peng-Yu MENG Qiang-Qiang and XI Xin-Guo |
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| Institution: | School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China;School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China,School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China;School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China,School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China;School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, China,School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China;School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China,School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China,School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China,Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China,Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China and School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China |
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| Abstract: | |
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| Keywords: | TiO2 HTi2NbO7 nanosheet N-doped composite photocatalytic properties |
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