二氧化钛光催化剂改性研究进展

doi:10.11962/1006-4990.2019-0245

摘要/Abstract

摘要：

光催化技术在处理有机污染物领域是一种资源节约、环境友好、极具应用前景的新型绿色环保技术。二氧化钛作为一种典型的半导体光催化剂,因具有光活性好、稳定性好、对人体无毒害、成本低廉、反应条件温和且无二次污染等特点而深受人们的青睐。然而它的宽带隙和较高的光生电子-空穴对复合率限制了它的大规模应用,这都是需要解决的技术难题。讲解了二氧化钛的催化机理,分析了传统二氧化钛的局限性,针对这些缺点介绍了提高二氧化钛催化活性的改性方法及原理,如离子掺杂、表面沉积贵金属、表面光敏化、半导体复合、负载等方法。讨论了二氧化钛光催化剂未来的研究和发展方向。

关键词: 光催化剂, 二氧化钛改性, 降解, 有机污染物

Abstract:

Photocatalysis technology is a new green environmental protection technology with resource saving,environmental friendliness and great application prospect in the field of organic pollutant treatment.As a typical semiconductor photocatalyst,TiO₂ is favored by people for its good photoactivity,good stability,non-toxic to human health,low cost,mild reaction conditions and no secondary pollution etc..However,its wide band gap and higher recombination rate of photogenerated electronhole pair limit its large-scale application,which are technical problems to be solved.The catalytic mechanism of TiO₂ was explained.The limitations of traditional TiO₂ were analyzed.And the modification methods and principles for improving the catalytic activity of TiO₂,such as ion doping,surface deposition of precious metals,surface photosensitization,semiconductor composite,load and other methods,were introduced.At last the future research and development direction of TiO₂ photocatalyst were discussed.

Key words: photocatalyst, TiO₂ modification, degradation, organic pollutant

中图分类号:

TQ134.11

朱佳新,熊裕华,郭锐. 二氧化钛光催化剂改性研究进展[J]. 无机盐工业, 2020, 52(3): 23-27.

Zhu Jiaxin,Xiong Yuhua,Guo Rui. Research progress in modification of TiO₂ photocatalyst[J]. Inorganic Chemicals Industry, 2020, 52(3): 23-27.

图/表 1

参考文献 33

[1]	Low J X, Cheng B, Yu J G . Surface modification and enhanced photocatalytic CO₂ reduction performance of TiO₂:a review[J]. Applied Surface Science, 2017,392:658-686.
[2]	Wang D Y . Adsorption characteristics and degradation mechanism of metronidazole on the surface of photocatalyst TiO₂:a theoretical study[J]. Applied Surface Science, 2019,478:896-905.
[3]	张岳, 张敏, 关成立 , 等. 纳米光催化剂TiO₂的结构表征及光催化杀菌性能[J]. 食品工业科技, 2019,40(3):7-11.
[4]	Choi W, Termin A, Hoffmann M R . The role of metal ion dopants in quantum-sized TiO₂:correlation between photoreactivity and charge carrier recombination dynamics[J]. Journal of Physical Chemistry, 1994,98(51):13669-13679.
[5]	孙圣楠 . 活化半焦负载Fe掺杂TiO₂光催化烟气脱硝的研究[J]. 中国海洋大学学报:自然科学版, 2015,45(11):63-68.
[6]	Hussain S T, Siddiqa A . Iron and chromium doped titanium dioxide nanotubes for the degradation of environmental and industrial pollutants[J]. International Journal of Environmental Science & Technology, 2011,8(2):351-362.
[7]	甄德帅, 罗小虎, 隋国哲 , 等. 稀土Eu ³⁺掺杂TiO₂光催化降解罗丹明B的研究 [J]. 染整技术, 2018,40(6):17-20,28.
[8]	Reszczynska J, Grzyb T, Sobczak J W , et al. Visible light activity of rare earth metal doped(Er ³⁺,Yb ³⁺ or Er ³⁺/Yb ³⁺) titania photocatalysts [J]. Applied Catalysis B:Environmental, 2015,163:40-49.
[9]	王丽, 陈永, 赵辉 , 等. 非金属掺杂二氧化钛光催化剂的研究进展[J]. 材料导报, 2015,29(1):147-151.
[10]	Ma L . Synjournal of core-shell TiO₂@g-C₃N₄ hollow microspheres for efficient photocatalytic degradation of rhodamine B under visible light[J]. Applied Surface Science, 2018,430:263-272.
[11]	He X, Aker W G, Pelaez M , et al. Assessment of nitrogen-fluorinecodoped TiO₂ under visible light for degradation of BPA:Implication for field remediation[J]. Journal of Photochemistry & Photobiology A:Chemistry, 2016,314:81-92.
[12]	Stucchi M, Bianchi C L, Argirusis C , et al. Ultrasound assisted synjournal of Ag-decorated TiO₂ active in visible light[J]. Ultrasonics Sonochemistry, 2018,40(Part A):282-288.
[13]	Qi L, Cheng B . High-surface area mesoporous Pt/TiO₂ hollow chains for efficient formaldehyde decomposition at ambient temperature[J]. Journal of Hazardous Materials, 2016,301:522-530.
[14]	Arabzadeh A . One dimensional CdS nanowire@TiO₂ nanoparticles core-shell as high performance photocatalyst for fast degradation of dye pollutants under visible and sunlight irradiation[J]. Journal of Colloid and Interface Science, 2016,479:43-54.
[15]	Yang J, Dai J, Li J . Visible-light-induced photocatalytic reduction of Cr(Ⅵ) with coupled Bi₂O₃/TiO₂ photocatalyst and the synergistic bisphenol A oxidation[J]. Environmental Science and Pollution Research International, 2013,20(4):2435-2447.
[16]	Feng H . Fabrication of layered(CdS-Mn/MoS₂/CdTe)-promoted TiO₂ nanotube arrays with superior photocatalytic properties[J]. Journal of Colloid & Interface Science, 2017,486:58-66.
[17]	尚静, 赵凤伟, 朱彤 , 等. 染料敏化TiO₂可见光光催化降解罗丹明B[J]. 中国科学:化学, 2010,40(12):1787-1793.
[18]	李佩欣, 冯铭扬 . 基于电子顺磁共振的锌卟啉敏化TiO₂光催化性机理的研究[J]. 物理学报, 2015,64(13):375-379.
[19]	杨晓超, 韦凤喜, 刘蓉 , 等. 磁性氧化石墨烯染料敏化复合物制备及其催化性能研究[J]. 化学与粘合, 2017,39(5):328-334.
[20]	Durgakumari V, Subrahmanyam M . An easy and efficient use of TiO₂ supported HZSM-5 and TiO₂+HZSM-5 zeolite combinate in the photo degradation of aqueous phenol and p-chlorophenol[J]. Applied Catalysis A:General, 2002,234(1):155-165.
[21]	苑丽质, 金昌磊, 李颖娜 . TiO₂/Hβ光催化剂的制备及性能研究[J]. 化工新型材料, 2013,41(6):50-52.
[22]	杨自涛, 王志涛, 吴方棣 . 13X分子筛负载TiO₂对甲醛溶液的光催化降解[J]. 武夷学院学报, 2016,35(9):34-37.
[23]	陈顺生, 曹鑫, 陈春卉 , 等. TiO₂基复合光催化剂研究进展[J]. 功能材料, 2018,49(7):7039-7049.
[24]	Krishna V, Noguchi N, Koopman B , et al. Enhancement of titanium dioxide photocatalysis by water-soluble fullerenes[J]. Journal of Colloid and Interface Science, 2006,304(1):166-171.
[25]	白书立, 管玉江 . TiO₂纳米管/碳纳米管复合材料光催化降解玫瑰红染料废水的研究[J]. 化工新型材料, 2010,38(7):67-69.
[26]	Zhang Y . Experimental observation of the quantum hall effect and berry′s phase in graphene[J]. Nature, 2005,438(7065):201-204.
[27]	Stoller M D, Park S, Zhu Y , et al. Graphene-based ultracapacitors[J]. Nano Letters, 2008,8(10):3498-3502.
[28]	Khalid N R, Ahmed E, Hong Z , et al. Enhanced photocatalytic activity of graphene-TiO₂ composite under visible light irradiation[J]. Current Applied Physics, 2013,13(4):659-663.
[29]	陈春明 . 热还原法制备氧化石墨烯/二氧化钛复合材料及其光催化性能研究[J]. 功能材料, 2015,46(16):16152-16156.
[30]	Ebrahimi A, Fatemi S . Titania-reduced graphene oxide nanocomposite as a promising visible light-active photocatalyst for continuous degradation of VVOC in air purification process[J]. Clean Technologies & Environmental Policy, 2017,19:2089-2098.
[31]	褚朱丹, 邱琳琳, 庄志山 , 等. 纤维或织物负载光催化剂的研究进展[J]. 纺织科技进展, 2018(11):6-10,14.
[32]	杨梓薇, 周顺利, 王锐 , 等. 纳米二氧化钛负载棉织物的制备及性能[J]. 高等学校化学学报, 2017,38(10):1880-1887.
[33]	罗大军, 徐彩云 . TiO₂负载玄武岩纤维毡复合材料的制备及其光催化性能[J]. 硅酸盐通报, 2014,33(10):2493-2497.

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