|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
新型N-TiO2的固相法制备及其光催化性能
DOI: 10.3724/SP.J.1088.2011.10431, PP. 1430-1435
Keywords: 氮掺杂,固相法,光催化,纳米管钛酸,纳米管钛酸盐
Abstract:
？以纳米管钛酸为前驱体,以NH4HCO3为N源,先机械研磨使二者混合均匀,再在Ar保护下,于不同温度焙烧4h制得N掺杂TiO2(N-TiO2),并采用X射线粉末衍射、X射线光电子能谱、紫外-可见吸收光谱、透射电镜及N2吸附-脱附对样品进行了表征.结果显示,N以间隙掺杂方式进入TiO2晶格内.在热处理过程中,生成中间体(NH4)2Ti2O4(OH)2,它不仅可在升温过程中缓慢分解并释放出N,使其更均匀地进入TiO2,同时可产生更多的氧空位,显著提高了N-TiO2对光的响应能力.另外,N的掺杂可抑制N-TiO2锐钛矿相向金红石相转化.当焙烧温度为500°C,n(N)/n(Ti)=4时,所制N-TiO2样品经光照130min,可使甲基橙完全降解,其活性比未掺杂N的样品提高近30%.
| [1] | ujishima A, Honda K. Nature, 1972, 238: 37
|
| [2] | hao H M, Chen Y, Quan X, Ruan X L. Chin Sci Bull, 2007, 52: 1456
|
| [3] | hang Z H, Yuan Y, Shi G Y, Fang Y J, Liang L H, Ding H Ch, Jin L T. Eniron Sci Technol, 2007, 41: 6259
|
| [4] | ang X H, Li D Y. J Phys Chem C, 2008, 112: 5405
|
| [5] | ohapatra S K, Misra M, Mahajan V K, Raja K S. J Catal, 2007, 246: 362
|
| [6] | ohapatra S K, Mahajan V K, Misra M. Nanotechnology, 2007, 18: 6
|
| [7] | ark J H, Kim S, Bard A J. Nano Lett, 2006, 6: 24
|
| [8] | Regan B, Gratzel M. Nature, 1991, 353: 737
|
| [9] | Rengifo-Herrera J A, Pierzcha?a K, Sienkiewicz A, Forr L, Kiwi J, Pulgarin C. Appl Catal B, 2009, 88: 398
|
| [10] | Rengifo-Herrera J A, Pulgarin C. Sol Energy, 2010, 84: 37
|
| [11] | Yang J J, Jin Zh Sh, Wang X D, Li W, Zhang J W, Zhang Sh L, Guo X Y, Zhang Zh J. Dalton Trans, 2003: 3898
|
| [12] | 包南, 孙剑, 张峰, 马志会, 刘峰. 无机化学学报 (Bao N, Sun J, Zhang F, Ma Zh H, Liu F. Chin J Inorg Chem), 2007, 23: 102
|
| [13] | Geng J Q, Yang D, Zhu J H, Chen D W, Jiang Zh Y. Mater Res Bull, 2009, 44: 146
|
| [14] | Thompson T L, Yates J T. Chem Rev, 2006, 106: 4428
|
| [15] | Torres G R, Lindgren T, Lu J, Granqvist C-G, Lindquist S-E. J Phys Chem B, 2004, 108: 5995
|
| [16] | opat K C, Eltgroth M, LaTempa T J, Grimes C A, Desai T A. Small, 2007, 3: 1878
|
| [17] | Sato S. Chem Phys Lett, 1986, 123: 126
|
| [18] | Asahi R, Morikawa T, Ohwaki T, Aoki K, Taga Y. Science, 2001, 293: 269
|
| [19] | Yin Sh, Yamaki H, Komatsu M, Zhang Q W, Wang J Sh, Tang Q, Saito F, Sato T. J Mater Chem, 2003, 13: 2996
|
| [20] | Rengifo-Herrera J A, Mielczarski E, Mielczarski J, Castillo N C, Kiwi J, Pulgarin C. Appl Catal B, 2008, 84: 448
|
| [21] | Rengifo-Herrera J A, Kiwi J, Pulgarin C. J Photochem Photobiol A, 2009, 205: 109
|
| [22] | Diwald O, Thompson T L, Zubkov T, Walck S D, Yates J T. J Phys Chem B, 2004, 108: 6004
|
| [23] | Sun H, Bai Y, Cheng Y P, Cheng Y P, Jin W Q, Xu N P. Ind Eng Chem Res, 2006, 45: 4971
|
| [24] | 费贤翔, 熊予莹. 功能材料与器件 (Fei X X, Xiong Y Y. Journal of Functional Materials and Devices), 2005, 11: 223
|
| [25] | Zhang M, Jin Zh Sh, Zhang J W, Guo X Y, Yang J J, Li W, Wang X D, Zhang Zh J. J Mol Catal A, 2004, 217: 203
|
| [26] | Wang Y, Feng C X, Jin Zh Sh, Zhang J W, Yang J J, Zhang Sh L. J Mol Catal A, 2006, 260: 1
|
| [27] | Cui G J, Xu Zh X, Wang Y, Zhang M, Yang J J. Surf Rev Lett, 2008, 15: 509
|
| [28] | Xie Y B, Yuan C W, Li X Z. Mater Sci Eng B, 2005, 117: 325
|
| [29] | Yuan J, Chen M X, Shi J W, Shangguan W F. Int J Hydrogen Energy, 2006, 31: 1326
|
| [30] | Wang Zh P, Cai W M, Hong X T, Zhao X L, Xu F, Cai Ch G. Appl Catal B, 2005, 57: 223
|
| [31] | Wu Y M, Liu H B, Zhang J L, Chen F. J Phys Chem C, 2009, 113: 14689
|
| [32] | Valentin C D, Finazzi E, Pacchioni G, Selloni A, Livaraghi S, Czoska A M, Paganini M C, Giamello E. Chem Mater, 2008, 20: 3706
|
| [33] | Xing M Y, Zhang J L, Chen F, Tian B Zh. Chem Commun, 2011, 47: 4947
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
