Abstract: As a photocatalyst, TiO2 has broad application prospects in many fields such as industrial wastewater and environmental pollutant treatment. However, TiO2 powders are prone to aggregation and they primarily exist in aqueous solution with suspended state, and difficult to be completely recovered, thus leading to secondary pollution, which greatly limits its application in practical industrialization. In this work, poly(N-vinyl carbazole)/TiO2 nanocomposites (PVK/TiO2) were synthesized via a in-situ polymerization of N-vinylcarbazole catalyzed by TiO2 nanoparticles under ultraviolet irradiations. A series of techniques including NMR, TEM, XRD, FTIR, UV-vis adsorption spectroscopy, and fluorescence spectroscopy were adopted to characterize the nanocomposites. The results indicate that the TiO2 nanoparticles possess high photocatalytic activities for N-vinylcarbazole monomer and the polymerization can be initiated without the addition of external photoinitiators under ultraviolet irradiations. The TiO2 nanoparticles are uniformly dispersed in the nanocomposites after a washing pretreatment. With the increase of TiO2 content, the fluorescence quenching effect of the nanocomposite is obviously enhanced. It is found for the first time that PVK polymer itself has a significant photodegradation activity for methyl orange under ultraviolet light. The PVK/TiO2 nanocomposites demonstrate superior photocatalytic performance than PVK or TiO2 nanoparticles alone to degrade methyl orange under the same experimental conditions, indicating that the photodegradation property of TiO2 is significantly enhanced by PVK. By taking advantages of excellent heat resistance, corrosion resistance, film forming properties and high mechanical strength of PVK, the PVK/TiO2 nanocomposites can produce a large variety of photodegradation devices in the form of powders, films, fibers and tubes, and therefore have a bright prospect in industrial applications.
Fan W J, Chang H, Zou M, et al. Journal of Chemical Engineering of Chinese Universities, 2016, 30(3), 709(in Chinese).范文娟, 常会, 邹敏, 等. 高校化学工程学报, 2016, 30(3), 709.2 He G Y, Hou J H, Huang J, et al. Journal of Chemical Engineering of Chinese Universities, 2013, 27(4), 663(in Chinese).何光裕, 侯景会, 黄静, 等. 高校化学工程学报, 2013, 27(4), 663.3 Lu Y, Kobayashi K, Guan S, et al. Materials Science in Semiconductor Processing, 2015, 30(s22-23), 128.4 Rath P C, Nayak S, Bhattacharjee S, et al. Composite Interfaces, 2014, 21(3), 12.5 Banisharif A, Khodadadi A A, Mortazavi Y, et al. Applied Catalysis B: Environmental, 2015, 165(2), 209.6 Min H, Fan W Y, Kong J J, et al. Liaoning Chemical Industry, 2017, 46(5), 435(in Chinese).明皓, 范文玉, 孔俊嘉, 等. 辽宁化工, 2017, 46(5), 435.7 Huang Y J, Tang L M, Song H, et al. New Chemical Materials, 2018, 46(2), 54(in Chinese).黄云镜, 唐丽梅, 宋浩, 等. 化工新型材料, 2018, 46(2), 54.8 Liu S. Preparation and photocatalytic properties of noble metals modified TiO2 nanocrystals assembled porous structures. Master’s Thesis, Shaanxi University of Science and Technology, China, 2017(in Chinese).刘爽. 贵金属修饰TiO2纳米晶组装多孔光催化剂的制备及性能研究. 硕士学位论文,陕西科技大学, 2017.9 Lin W L. Guangzhou Chemical Industry, 2016, 44(11), 68(in Chinese).林卫丽. 广州化工, 2016, 44(11), 68.10 Pang Y H, Liu J, Sun M M, et al. Chemistry, 2018, 81(5), 433(in Chinese).庞月红, 刘娟, 孙梦梦, 等. 化学通报, 2018, 81(05), 433.11 Liu X H, Yang Q W, Xu J. Journal of Xihua University(Natural Science Edition), 2018, 37(3), 48(in Chinese).刘向辉, 杨巧文, 徐菁. 西华大学学报(自然科学版), 2018, 37(3), 48.12 Liu S Y, Yang M J, Dan Y. Polymer Materials Science and Engineering, 2006, 22(3), 93(in Chinese).刘舒扬, 杨明娇, 淡宜. 高分子材料科学与工程, 2006, 22(3), 93.13 Li W C, Deng P, Zhao J M, et al. Engineering Plastic Application, 2018, 46(3), 112(in Chinese).李伟超, 邓攀, 赵精密, 等. 工程塑料应用, 2018, 46(3), 112.14 Singh S, Mahalingam H, Singh P K. Applied Catalysis A General, 2013, 462 (9), 178.15 Li X, Jiang G, He G, et al. Chemical Engineering Journal, 2014, 236(2), 480.16 Zhang J, Wang C, Wang H Y. Journal of Synthetic Crystals, 2014, 43(8), 2149(in Chinese).张杰, 王超, 王焕英. 人工晶体学报, 2014, 43(8), 2149.17 Chai C P, Fan X H, Chen X F, et al. Acta Polymerica Sinica, 2008(2), 197(in Chinese).柴春鹏, 范星河, 陈小芳,等. 高分子学报, 2008 (2), 197.18 Pierre-Olivier B, Agnes R, Sandrine T, et al. The Journal of Physical Chemistry B, 2012, 16(2), 802.19 Penwell R C, Ganguly B N, Smith T W. Journal of Polymer Science Macromolecular Reviews, 1978, 13(1), 63.20 Safoula G, Touihri S, Berne`de J C, et al. Polymer, 1999, 40(2), 531.21 Ling H F, Cao Y, Yi M D, et al. In: 2013 National Polymer Academic Papers Conference. Shanghai, China, 2013, pp. 498(in Chinese).凌海峰, 曹永, 仪明东, 等. 2013年全国高分子学术论文报告会. 上海, 2013, pp. 498.22 Liu S M, Xu Z, Wageh S,et al. Journal of Optoelectronics·Laser, 2003, 14(2), 118(in Chinese).刘舒曼, 徐征, Wageh S, 等. 光电子·激光, 2003, 14(2), 118.23 Li Y Z, Wang M L, Gao L Z, et al. Chemical Research and Application, 2014, 26(4), 577(in Chinese).李育珍, 王美璐, 高利珍, 等. 化学研究与应用, 2014, 26(4), 577.24 Liu J, Li Y B, Hou Y B, et al. Liquid Crystal & Display, 2016, 31(7), 643(in Chinese).刘娟, 李云白, 侯延冰, 等. 液晶与显示, 2016, 31(7), 643.25 Yang S P, Qiu X L, Zhao F C, et al. Journal of Synthetic Crystals, 2009, 38(2), 317(in Chinese).杨少鹏, 邱晓丽, 赵方超, 等. 人工晶体学报, 2009, 38(2), 317.26 An L M, Shan G Y, Wang X, et al. Chinese Journal of Luminescence, 2002, 23(6), 590(in Chinese).安利民, 单桂晔, 王新, 等. 发光学报, 2002, 23(6), 590.27 Aita T M, Iha K, Hui L, et al. Journal of Materials Science, 2007, 42(15), 6279.28 Han Y, Wu G, Chen H, et al. Journal of Applied Polymer Science, 2010, 109(2), 882.29 Cho B, Kim T W, Choe M, et al. Organic Electronics, 2009, 10(3), 473.30 Han Y G. Synthesis of nanoscale TiO2-organic hybrid semiconducting materials and their application in ultraviolet photodetetion. Ph.D. Thesis, Zhejinag University, China, 2010(in Chinese).韩延刚. 纳米TiO2/有机复合半导体紫外探测材料. 博士学位论文,浙江大学, 2010.31 Barlier V, Bounor-Legaré V, Boiteux G, et al. Materials Chemistry & Physics, 2009, 115(1), 429.32 Zhang L Z, Xi Y X, Wang G. Materials Review, 2006, 20(3), 104(in Chinese).张凌紫, 郗英欣, 王耿. 材料导报, 2006, 20(3), 104.33 Weng Z. Study on the initiation pathway of nano-TiO2 photocatalytic polymerization. Master’s Thesis, Fudan University, China, 2008(in Chinese).翁臻. 纳米TiO2光催化聚合引发途径的研究. 硕士学位论文, 复旦大学, 2008.34 Kraeutler B, Reiche H, Bard A J, et al. Journal of Polymer Science Part C Polymer Letters, 1979, 17(8), 535.35 Li Y M, Science & Technology Information, 2012(12), 382(in Chinese).黎玉茗. 科技信息, 2012(12), 382.36 Qu J F, Zhang S W, Song J H, et al. Acta Polymerica Sinica, 2001, 1(5), 656(in Chinese).曲济方, 张生万, 宋晋虎, 等. 高分子学报, 2001, 1(5), 656.37 Zhang L X, Song L C, Liu Y F, et al. Journal of Shanxi University(Na-tural Science Edition), 2014, 37(3), 420(in Chinese).张玲秀, 宋丽超, 刘艳芳, 等. 山西大学学报(自然科学版), 2014, 37(3), 420.38 Pan Z R. Polymer chemistry, Chemistry Industry Press, China, 2011(in Chinese).潘祖仁. 高分子化学, 化学工业出版社, 2011.39 Williams D J. Macromolecules, 2002, 3(5), 602.40 Wei X L, Li J, Zhang Q, et al. Joumal of Chongqing University of Arts and Sciences, 2016, 35(2), 120(in Chinese).韦雪莲, 黎君, 张钱, 等. 重庆文理学院学报, 2016, 35(2), 120.41 Long G B, Xuan T C, Quynh B T P, et al. Molecular Crystals & Liquid Crystals, 2017, 644(1), 183.42 Cardona C M, Li W, Kaifer A E, et al. Advanced Materials, 2011, 23(20), 2367.43 Wu K X, Fang Y L, Wang B. Journal of Xihua University(Natural Science Edition), 2018, 37(5), 36(in Chinese).吴开霞, 方云龙, 王博. 西华大学学报(自然科学版), 2018, 37(5), 36.
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2020, Vol. 34 
