[1]刘海龙,周?? 艳,黄鹤勇,等.光谱法研究敏化的TiO2纳米粒子光催化降解罗丹明B的途径[J].南京师大学报(自然科学版),2011,34(01):64-67.
　Liu Hailong,Zhou Yan,Huang Heyong,et al.Study of Sensitized TiO2 on Photocatalytic Degradation Paths of Rhodamine B by Spectroscopy Methods[J].Journal of Nanjing Normal University(Natural Science Edition),2011,34(01):64-67.
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光谱法研究敏化的TiO2纳米粒子光催化降解罗丹明B的途径()
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《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

卷:
第34卷
期数:
2011年01期
页码:
64-67
栏目:
物理学
出版日期:
2011-03-20

文章信息/Info

Title:
Study of Sensitized TiO2 on Photocatalytic Degradation Paths of Rhodamine B by Spectroscopy Methods
作者:
刘海龙1;  周?? 艳1;  黄鹤勇1;  冯玉英1;  王兴和2
1. 南京师范大学化学与材料科学学院, 江苏南京, 210046 2. 南京师范大学物理科学与技术学院, 江苏南京, 210046
Author(s):
Liu Hailong1; Zhou Yan1; Huang Heyong1; Feng Yuying1; Wang Xinghe2
1.School of Chemistry and Materials Science,Nanjing Normal University,Nanjing 210046,China 2. School of Phys ics and Technology, Nanj ing Norm alUn iversity, Nan jing 210046, China
关键词:
紫外/可见光谱;  荧光光谱;  敏化氧化钛;  罗丹明B
Keywords:
UV-v is spectra;  fluorescence spectra;  sens itized T iO2;  rhodam ine B
分类号:
TB383.1
摘要:
采用sol-gel法制备了纳米氧化钛(TiO2),并用邻苯二甲酸(o-PTA)对TiO2进行敏化修饰,得到了邻苯二甲酸敏化纳米氧化钛(o-PTA/TiO2)催化剂.用傅里叶变化红外光谱(FT-IR)对其进行表征,发现邻苯二甲酸已经成功连接到TiO2的表面,并对其光催化性能进行了研究.以罗丹明B(RhB)为催化降解目标物,采用紫外/可见光谱(UV-V is)法和荧光光谱(FL)法对催化降解RhB的产物进行研究,结果显示,在可见光下TiO2催化降解RhB时, 是直接矿化RhB; 同条件下o-PTA /TiO2 催化降解RhB时, 是分步降解. 对两种光催化路径的探究, 可以为光催化降解以RhB为代表的一系列染料提供理论基础. 研究表明, 无论采用紫外/可见光谱法还是采用荧光光谱法对RhB 的降解产物进行表征, 都可以得到一致的结果, 方法简便易操作.
Abstract:
The photocata ly tic deg radation produc ts of Rhodam ine B ( RhB ) on T iO2 nanopartica l m odified w ith Phthaland ione( o-PTA ), wh ich was prepa red through the so-l gel m ehtod, have been investigated by UV-v is spectroscopy and fluorescence spectroscopy. The resu lts ind icated tha t N-de- ethy lation of RhB that leads to the generation o f rhodam ine- 110 was a preva iling path w ith o-PTA /T iO2, whereas the cleavage of the ch rom ophor ic r ing structure w as dom inant w ith pure TiO2. The tw o paths prov ided a theory base for the photocatalytic deg radation of se ries of dye pollutants likeRhB.

参考文献/References:

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备注/Memo

备注/Memo:
基金项目: 江苏省科技发展计划基金( BM2007132)、江苏省教育厅自然科学基金( 04K JD150110) . 通讯联系人: 王兴和, 副教授, 研究方向: 物理光电子技术. E-mail:wangxinghe@njnu. edu. cn
更新日期/Last Update: 2013-04-11