以纳米TiO2为光催化剂,对聚乙二醇(PEG)水溶液进行光催化降解实验.生成物CO2的量及剩余反应物浓度随时间变化的结果表明,反应为零级反应,且催化反应速率与PEG平均分子量成反比.热重、核磁共振波谱的检测结果证实,降解过程中有低分子量聚乙二醇和甲酸酯及其他低分子量酯等中间产物生成,最终矿化为CO2和H2O.
参考文献
[1] | Minabe T,Tryk D A,Sawunyyama P, et al. J Photochem Photobio A:Chem[J] ,2000,137:53 |
[2] | Hoffmann M R,Martin S T,Choi W, et al. Chem Rev[J],1995,95(1):69 |
[3] | Chen Y X,Sun Z S,Yang Y, et al. J Photochem Photobio[J] ,2001,142:85 |
[4] | CHEN Ying(陈颖),WANG Bao-Hui(王宝辉),ZHANG Hai-Yan(张海燕),et al.Chin J Catal(催化学报)[J],1999,20(3):309 |
[5] | WANG Jun(王君),WANG Ya-Bing(王亚兵),LIU Shu-Qing(刘树清).Chem Propell Polym Mater(化学推进剂与高分子材料)[J],2003,19(1):35 |
[6] | YAN Rui-Xuan(严瑞萱).Water-soluble Polymer(水溶性高分子)[M].Beijing(北京):Chemical Industrial Press(化学工业出版社),1998:223 |
[7] | DING Yan-Wei(丁延伟).Master Dissertation([硕士学位论文]).Hefei(合肥):University of Science and Technology of China(中国科学技术大学),2002 |
[8] | WU Ying(吴缨),LI Guang-Shun(李光顺),XU Qiang(徐强),et al.J Anhui Univ(Nat Sci)(安徽大学学报(自然科学版))[J],2004,28(5):65 |
[9] | Matthews R W, McEvoy S R. J Photochem Photobiol A: Chem[ J ], 1992,66:3 655 |
[10] | FU Xian-Cai(傅献彩),SHEN Wen-Xia(沈文霞),YAO Tian-Yang(姚天扬).Physical Chemistry-Ⅱ(物理化学(下))[M],4th Edn(第4版).Beijing(北京):High Education Press(高等教育出版社),1990:72 |
[11] | XIAO Chao-Bo(肖超渤),HU Yun-Hua(胡运华).Polymer Chemistry(高分子化学)[M].Wuhan(武汉):Wuhan University Press(武汉大学出版社),1998:108 |
[12] | HE Man-Jun(何曼君),CHEN Wei-Xiao(陈维孝),DONG Xi-Xia(董西侠).Polymer Physics(高分子物理)[M].Shanghai(上海):Fudan University Press(复旦大学出版社),2000:34 |
[13] | ZHAO Tian-Zeng(赵天增).1H-Nuclear Magnetic Resonance Spectrometry(核磁共振氢谱)[M].Beijing(北京):Beijing University Press(北京大学出版社),1983:171 |
[14] | SHEN Qi-Feng(沈其丰).13C-Nuclear Magnetic Resonance Spectrometry(核磁共振碳谱)[M].Beijing(北京):Beijing University Press(北京大学出版社),1983:291 |
[15] | Bigger S W,Scheirs J,Billingham N C. Polym Int[J] ,1991,26:181 |
[16] | Ranby B,Rabek J F(著).CUI Meng-Yuan(崔孟元)Trans(译).Photodegradation Photo-oxidation and Photostabilization of Polymers(聚合物的光降解、光氧化和光稳定)[M].Beijing(北京):Science Press(科学出版社),1986:127 |
[17] | Costa L,Gad A M,Camino G, et al. Macromolecules[J] ,1992,25:5 512 |
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