氨水挥发法制备氮掺杂TiO2纳米管及表征
Preparation and Characterization of N-Doped TiO2 Nanotubes with NH3·H2O Volatilization Process
摘 要
采用阳极氧化法在纯钛片表面制备了TiO2纳米管, 在随后的热处理过程中通过浓氨水受热挥发提供的氨气氛下进行掺氮, 采用SEM、XRD、XPS对氮掺杂的TiO2纳米管进行了表征, 采用自制光催化污水处理装置研究了氮掺杂对TiO2纳米管光催化性能的影响。结果表明: 制得的TiO2纳米管管径为80～90 nm, 壁厚为5～10 nm;经400 ℃热处理后, 未掺杂、氮掺杂TiO2纳米管的晶型相同; 氮掺杂使TiO2纳米管的光催化性能提高了4.7%。
氮掺杂
光催化性能
TiO2 nanotube
N-doping
photocatalytic property
Abstract
TiO2 nanotubes were prepared on the surface of pure titanium sheet by anodic oxidation method. N was doped with NH3, which engendered by the volatilization of NH3·H2O during heat treatment process. The characteristics of N-doped TiO2 nanotubes were investigated by SEM, XRD and XPS. The effect of N-doping on photocatalytic property of TiO2 nanotubes was studied with self-made photocatalytic sewage disposal device. The results indicate that the diameter of the prepared TiO2 nanotubes was 80-90 nm and the thickness of the wall was 5-10 nm. The crystal forms of undoped and N-doped TiO2 nanotubes annealed at 400 ℃ were the same. The photocatalytic property of TiO2 nanotubes improved 4.7% by N-doping.
中图分类号 O614
所属栏目
基金项目 国际科技合作项目(2009DFA92550); 海南大学重点项目(hd09xm22); 海南大学创新团队项目(hd09xm03)
收稿日期 2010/6/11
修改稿日期 2011/2/17
网络出版日期
作者单位点击查看
备注张理元(1984-), 男, 江西九江人, 硕士研究生。
引用该论文: ZHANG Li-yuan,CAO Yang,LIU Zhong-xin,YU Xiao-long,LV Zuo-feng. Preparation and Characterization of N-Doped TiO2 Nanotubes with NH3·H2O Volatilization Process[J]. Materials for mechancial engineering, 2011, 35(7): 68～70
张理元,曹阳,刘钟馨,于晓龙,吕作凤. 氨水挥发法制备氮掺杂TiO2纳米管及表征[J]. 机械工程材料, 2011, 35(7): 68～70
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参考文献
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【2】SHU Y, MASAKAZU K, ZHANG Q W, et al. Synthesis of visible-light Responsive nitrogen/carbon doped titania photocatalyst by mechanochemical doping[J].Mater Sci, 2007, 42: 2399-2404.
【3】VENKATACHALAM N, PALANICHAMY M, MURUGESAN V, et al. Alkaline earth metal doped nanoporous TiO2 for enhanced photocatalytic mineralisation of bisphenol-A[J].Catalysis Communications, 2007, 8: 1088-1093.
【4】ZHAO Qian, JING Jun-jie, JIANG Ting-shun, et al. Photoca-talytic property and synthesis of titania nanotubes[J].Journal of the Chinese Ceramic Society, 2008, 36(S1): 1-5.
【5】薛寒松, 李华基, 易于.铈掺杂二氧化钛纳米管的光催化性能[J].机械工程材料, 2008, 32(6): 35-39.
【6】梁春华, 吴峰.钐离子掺杂二氧化钛光催化降解甲基橙研究[J].环境保护科学, 2008, 34(2): 45-47.
【7】ASAHI R, MORIBAWA T, OHWAKI T, et al.Visible-light photocatalysis in nitrogen-doped titanium oxides[J].Science, 2001, 293: 269-271.
【8】孙超, 黄浪欢, 刘应亮.氮掺杂二氧化钛纳米管制备与光催化性能[J].功能材料, 2005, 36(9): 1412-1414.
【9】吕作凤, 张理元, 杨亮, 等.TiO2纳米管在不同条件光催化降解的活性研究[J].化学工程师, 2010(2): 1-4.
【10】ZHAO L, JIANG Q, LIAN J S. Visible-light photocatalytic activity of nitrogen-doped TiO2 thin film prepared by pulsed laser deposition[J]. Appl Surface Sci, 2008, 254(15): 4620-4625.
【11】YAMAMOTO Y, MATSUMOTO Y, KOINUMA H. Homo-epitaxial growth of rutile TiO2 film on step and terrace structured substrate[J].Appl Surface Sci, 2004, 238(1/4): 189-192.
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