以活性炭(AC)为载体,采用溶胶-凝胶法制备纳米TiO2/AC复合型催化剂.利用SEM,TG-DTA,XRD,等手段对其组成、结构、尺寸等进行分析和表征,结果表明,该复合材料由碳、钛、氧等3种元素组成,其中TiO2纳米粒子尺寸在2O-50nm之间,比本体TiO2纳米粒子尺寸小;在该纳米复合材料中,活性炭作为载体与TiO2结合牢固,存在着某种化学键,TiO2纳米颗粒间不发生团聚,并且活性炭载体的比表面积变化不大.
参考文献
| [1] | 高伟,吴凤清,罗臻,富菊霞,王德军,徐宝琨.TiO2晶型与光催化活性关系的研究[J].高等学校化学学报,2001(04):660-662. |
| [2] | HOFFMAN M.R;MARTIN S.T;CHOI W .Environmental application of semiconductor photocatalysis[J].Chemical Reviews,1995,95(01):69-96. |
| [3] | 吴凤清,阮圣平,李晓平,高伟,徐宝琨,赵慕愚.一种新型纳米TiO2涂膜及其光催化性能的研究[J].高等学校化学学报,2000(10):1578-1580. |
| [4] | UCHIDA H;ITOH S;YONEYAMA H .Photocatalytic decomposition of propyzamide using TiO2 supported on activated carbon[J].Chemistry Letters,2001,22:203-205. |
| [5] | Shuji Fukahori;Hideaki Ichiura;Takuya Kitaoka;Hiroo Tanaka .Capturing of bisphenol A photodecomposition intermediates by composite TiO_2-zeolite sheets[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2003(3):453-462. |
| [6] | KYOKO K.B;KAZUHIRO S;HITOSHI K;KIYOMI O,Hironori A .In-situ FT-IR study on CO2 hydrogenation over Cu catalyts supported on SiO2,Al2O3 ,andTiO2[J].Applied Catalysis A:General,1997,165:391-409. |
| [7] | Yiming Xu;Wei Zheng;Weiping Liu .Enhanced photocatalytic activity of supported TiO_2: dispersing effect of SiO_2[J].Journal of Photochemistry and Photobiology, A. Chemistry,1999(1):57-60. |
| [8] | Hartmann N.;Biener J.;Madix RJ. .Monitoring the interaction of sulfur dioxide with a TiO2(110) surface at 300 K by scanning tunneling microscopy[J].Surface Science: A Journal Devoted to the Physics and Chemistry of Interfaces,2002(1/3):81-92. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%