全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用：99美元
投递稿件

查看量下载量

相关文章

更多...
催化学报  2012 

Ag(Au)/石墨烯-TiO2复合光催化剂的制备及其模拟太阳光光催化性能

DOI: 10.3724/SP.J.1088.2012.20820, PP. 1974-1981

Keywords: 石墨烯,二氧化钛,银,金,溶剂热还原,光还原,罗丹明B,甲基橙

Full-Text   Cite this paper   Add to My Lib

Abstract:

？分别采用溶剂热还原和光还原沉积法制备了石墨烯-TiO2和Ag(Au)/石墨烯-TiO2复合光催化剂,并表征了其相结构、形貌、孔隙率、光谱吸收性质以及组成结构.结果表明,石墨烯与TiO2通过C–O–Ti共价键相互作用,Ag或Au纳米粒子均匀沉积在石墨烯和TiO2表面.在模拟太阳光照射下,通过对水相中罗丹明B和甲基橙的降解,考察了光催化剂活性的差异,并研究了其降解动力学.结果表明,由于量子效率的提高、带隙能的降低以及织构性质的优化,复合光催化剂表现出比纯TiO2更高的光催化活性.

 References

[1]  Zhang N, Zhang Y H, Pan X Y, Yang M Q, Xu Y J. J Phys Chem C, 2012, 116: 18023
[2]  Chen C, Yang Q H, Yang Y, Lü W, Wen Y, Hou P X, Wang M, Cheng H M. Adv Mater, 2009, 21: 3007
[3]  Chen F, Qing Q, Xia J, Li J, Tao N. J Am Chem Soc, 2009, 131: 9908
[4]  Xiang Q J, Yu J G, Jaroniec M. Chem Soc Rev, 2012, 41: 782
[5]  Hummers W S, Offeman R E. J Am Chem Soc, 1958, 80: 1339
[6]  Tang Y B, Lee C S, Xu J, Liu Z T, Chen Z H, He Z, Cao Y L, Yuan G, Song H, Chen L, Luo L, Cheng H M, Zhang W J, Bello I, Lee S T. ACS Nano, 2010, 4: 3482
[7]  Qian W, Hao R, Hou Y, Tian Y, Shen C, Gao H, Liang X. Nano Res, 2009, 2: 7060
[8]  Nethravathi C, Rajamathi M. Carbon, 2008, 46: 1994
[9]  Zhang H, Lü X, Li Y M, Wang Y, Li J H. ACS Nano, 2010, 4: 380
[10]  Lambert T N, Chavez C A, Hernandez-Sanchez B, Lu P, Bell N S, Ambrosini A, Friedman T, Boyle T J, Wheeler D R, Huber D L. J Phys Chem C, 2009, 113: 19812
[11]  Akhavan O, Ghaderi E. J Phys Chem C, 2009, 113: 20214
[12]  Rockafellow E M, Fang X, Trewyn B G, Schmidt-Rohr K, Jenks W S. Chem Mater, 2009, 21: 1187
[13]  Raji J R, Palanivelu K. Ind Eng Chem Res, 2011, 50: 3130
[14]  Chen H, Yang S, Yu K, Ju Y, Sun C. J Phys Chem A, 2011, 115: 3034
[15]  向全军, 余家国. 催化学报 (Xiang Q J, Yu J G. Chin J Catal), 2011, 32: 525
[16]  Li K, Hu J, Li W, Ma F, Xu L, Guo Y. J Mater Chem, 2009, 19: 8628
[17]  Li K, Yang X, Guo Y, Ma F, Li H, Chen L, Guo Y. Appl Catal B, 2010, 99: 364
[18]  Du J, Lai X, Yang N, Zhai J, Kisailus D, Su F, Wang D, Jiang L. ACS Nano, 2011, 5: 590
[19]  Tada H, Mitsui T, Kiyonaga T, Akita T, Tanaka K. Nature Mater, 2006, 5: 782
[20]  Rupa A V, Manikandan D, Divakar D, Sivakumar T. J Hazard Mater, 2007, 147: 906
[21]  Neppolian B, Bruno A, Bianchi C L, Ashokkumar M. Ultrason Sonochem, 2012, 19: 9
[22]  Liu Y, Chen L, Hu J, Li J, Richards R. J Phys Chem C, 2010, 114: 1641
[23]  Veith G M, Lupini A R, Dudney N J. J Phys Chem C, 2009, 113: 269
[24]  Yang X, Ma F, Li K, Guo Y, Hu J, Li W, Huo M, Guo Y. J Hazard Mater, 2010, 175: 429
[25]  Wodka D, Bielańska E, Socha R P, El?bieciak-Wodka M, Gurgul J, Nowak P, Warszyński P, Kumakiri I. ACS Appl Mater Interf, 2010, 2: 1945
[26]  Zhao Q, Li M, Chu J, Jiang T, Yin H. Appl Surf Sci, 2009, 255: 3773
[27]  Xiang Q, Yu J, Jaroniec M. J Am Chem Soc, 2012, 134: 6575
[28]  Yang X, Wang Y, Xu L, Yu X, Guo Y. J Phys Chem C, 2008, 112: 11481
[29]  Li K X, Huang Y, Yan L Sh, Dai Y H, Xue K P, Guo H Q, Huang Z M, Xiong J J. Catal Commun, 2012, 18: 16
[30]  Hurum D C, Agrios A G, Gray K A, Rajh T, Thurnauer M C. J Phys Chem B, 2003, 107: 4545
[31]  Yan M, Chen F, Zhang J, Anpo M. J Phys Chem B, 2005, 109: 8673

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133