[1]胡华国,王玉萍,顾凌燕,等.活性炭负载N掺杂TiO2光催化剂的制备及其可见光催化活性研究[J].南京师大学报(自然科学版),2010,33(01):52-58.
　Hu Huaguo,Wang Yuping,Gu Lingyan,et al.Preparation of Nitrogen-doped TiO2/Activated Carbon and Photocatalytic Activity Under Visible Light[J].Journal of Nanjing Normal University(Natural Science Edition),2010,33(01):52-58.
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活性炭负载N掺杂TiO2光催化剂的制备及其可见光催化活性研究()
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《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

卷:
第33卷
期数:
2010年01期
页码:
52-58
栏目:
化学
出版日期:
2010-03-20

文章信息/Info

Title:
Preparation of Nitrogen-doped TiO2/Activated Carbon and Photocatalytic Activity Under Visible Light
作者:
胡华国;王玉萍;顾凌燕;彭盘英;
南京师范大学化学与环境科学学院, 江苏南京210097
Author(s):
Hu Huaguo; Wang Yuping; Gu Lingyan; Peng Panying
School of Chemistry and Environmental Science,Nanjing Normal University,Nanjing 210097,China
关键词:
N掺杂;  活性炭;  负载催化剂;  亚甲基蓝
Keywords:
N-doped;  activa ted carbon;  suppo rted cata lysts;  m ethy lene blue
分类号:
O643.36
摘要:
以尿素为N源、以钛酸四丁酯和乙醇为原料,采用溶胶凝胶法制备N掺杂TiO2,并用浸渍法将TiO2负载于粒状活性炭上,通过烧结制成N-TiO2/AC光催化剂.并利用TG-DTA、XRD、BET对催化剂的结构、尺寸等特征进行分析和表征,同时考察了亚甲基蓝溶液初始浓度、催化剂用量、亚甲基蓝溶液pH值、催化剂负载次数对N-TiO2/AC光催化剂在可见光下降解亚甲基蓝的影响.其结果表明负载于活性炭上的N-TiO2
Abstract:
N-doped TiO2 photocata lysts w ere fabr icated by m ix ing tetrabuty l titana tew ith urea in ethanol and wa ter by so-l ge lm ethod, and imm ob ilized to granular ac tivated carbon by coating. The prepared N-TiO2 /AC w as character ized by XRD, TG-DTA, FT- IR, BET. The e ffect o f various exper imenta l param eters on the pho to ca talytic activ ity of N-TiO2 /AC photo ca talysts w ere investigated, wh ich invo lved lo ad ing tim es, N-TiO2 /AC amoun t, pH value o f m ethy lene b lue, and initial concentration ofM e thy lene blue. The results showed that the optim a l condition include load ing three tim es, NT iO2 /AC amount 0.4 g, pH va lue of m ethylene b lue 1, in itia l concentration o fM ethy lene blue 100 mg /L. The sam ple has anatase crystal struc ture and the m ed ia l diam eter is about 9.3 nm, BET is about 746.86 m2 /g. The pho tocata lytic ab ility show ed that over 91.43% me thy lence blue could be deg raded afte r 5 h reaction unde r v isible light, and the degradation rate is 65.31 tim es com pared to pure TiO2, 2.58 tim es com pared to N-TiO2 in the sam e condition.

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备注/Memo

备注/Memo:
基金项目: 江苏省自然科学基金( BK2009409 )、南京师范大学"211" 工程三期重点学科建设基金. 通讯联系人: 王玉萍, 副教授, 研究方向: 环境监测及工业"三废"处理及资源化实用技术. E-mail:wangyuping@njnu. edu. cn
更新日期/Last Update: 2013-04-08