以TiO_2为光催化剂的反应器结构研究进展
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摘要
介绍了TiO_2的特点和以TiO_2为光催化剂的反应器的不同类型及结构。根据TiO_2的催化氧化机理和常用形态,将反应器结构分为悬浮式、固定式和与膜组件耦合的反应器;按照对光源的利用情况将反应器分为聚光型、非聚光型和复合型光催化反应器,并简述了光催化微反应器。指出了当前光催化剂及光催化反应器存在的一些问题:TiO_2只能利用紫外光,对光源总的利用率不足;催化剂回收及反应效率之间存在矛盾;直接针对生活生产中有机废水处理的研究不足。
The characteristics of TiO_2,and various types and structures of reactors that use TiO_2 as photocatalyst are introduced.According to the catalytic oxidation mechanism of TiO_2 and its common form,the reactor structures are divided into suspension type,fixed type and membrane module coupled type.In accordance with the use mode of the light source,reactors are divided into spotlight type,non-spotlight type and composite photocatalyst. A photocatalytic microreactor is also described briefly. Some problems existing in the current photocatalyst and photocatalytic reactor are pointed out,including that TiO_2 can only make use of ultraviolet light with an insufficient total utilization to light source,there is a contradiction between the recovery of catalyst and the efficiency of reaction,and the research on treatment of organic wastewater in the production and living is not enough.
The characteristics of TiO_2,and various types and structures of reactors that use TiO_2 as photocatalyst are introduced.According to the catalytic oxidation mechanism of TiO_2 and its common form,the reactor structures are divided into suspension type,fixed type and membrane module coupled type.In accordance with the use mode of the light source,reactors are divided into spotlight type,non-spotlight type and composite photocatalyst. A photocatalytic microreactor is also described briefly. Some problems existing in the current photocatalyst and photocatalytic reactor are pointed out,including that TiO_2 can only make use of ultraviolet light with an insufficient total utilization to light source,there is a contradiction between the recovery of catalyst and the efficiency of reaction,and the research on treatment of organic wastewater in the production and living is not enough.
引文
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[22]魏永,赵威,董秉直.TiO2/UV光催化氧化偶合膜分离处理太湖水的效果[J].中国给水排水,2017,33(15):52-57.
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[24]张宏忠,张钰,王明花,等.新型光催化膜反应器的设计及性能研究[J].膜科学与技术,2017,37(2):109-113.
[25]肖国生.管式光催化反应器的研发及其降解四环素废水的性能研究[D].长春:吉林大学,2016.
[26]王玉春,张丽,董丽华.光催化氧化法污水处理反应器的研究进展[J].科技信息,2012,(15):94-95.
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[28]费学宁,董业硕,陈磊,等.微米级负载型Ti O2催化剂在光催化-膜分离反应器中的应用[J].环境工程学报,2014,8(1):162-169.
[29]杨中国.液-固流化床及气-液鼓泡塔光催化微小反应器的研究[D].天津:天津大学,2016.
[2]Li Jun,Wu Xiaoyong,Pan Wenfeng,et al.Vacancy-rich monolayer BiO2-xas a highly efficient UV,visible and near-infrared responsive photocatalyst[J].Angew and Chemie,2017,57(2):491-495.
[3]Wang Junting,Xiao Chun,Wu Xiaoyong,et al.Potassium tantalate K6Ta10.8O30with tungsten bronze structure and its photocatalytic property[J].Chinese Journal of Chemistry,2017,32(2):189-195.
[4]张晓晶,张昊,高梦悦.实验室采用光催化氧化法处理有机废水的应用[J].新农业,2017,(21):12-16.
[5]于洪涛,陈硕,全燮,等.光催化水处理消毒的原理、材料和反应器[J].化学进展,2017,29(9):1030-1041.
[6]李虎.可见光催化薄膜复合体系应用于悬浮玻璃珠光催化反应器的研究[D].上海:上海师范大学,2013.
[7]Li Hexing,Bian Zhenfeng,Zhu Jian,et al.Mesoporous titania spheres with tunable chamber structure and enhanced photocatalytic activity[J].Journal of the American Chemical Society,2007,129(27):8406-8407.
[8]Wu Guosheng,Wang Jingpeng,Chen Aicheng,et al.Synthesis of F-doped flower-like Ti O2nanostructures with high photoelectrocheical activity[J].Langmuir the Acs Journal of Surfaces&Colloids,2008,24(7):3503-3509.
[9]林骋,刘明言.铜离子掺杂二氧化钛光催化板式微反应器[J].化工学报,2014,65(11):4325-4331.
[10]Muhammad,Beenish,Amin.Photocatalytic CO2reduction to COover Fe-loaded Ti O2/Nanoclay photocatalyst[J].Chemical Engineering Transactions,2017,56:1111-1116.
[11]Payam,Mohammad.Hydrothermal-assisted sol-gel synthesis of Cddoped Ti O2nanophotocatalyst for removal of acid orange from wastewater[J].Sol-Gel Science and Technology,2017,81(2):556-569.
[12]Jeffrey G,Carl A,Richard D.A taylor vortex reactor for heterogeneous photocalalysis[J].Chemical Engineering Science,1995,50(20):3163-3173.
[13]Malcolm E,Robert L,et al.The application of oscillatory flow mixing to photoeatalytic wet oxidation[J].Journal of Photochemistry and Photobiology A:Chemistry,1999,129(1/2):17-24.
[14]Kamble S P,Sawant S B,Pangarkar V G.Novel solar-based photocatalytic reactor for degradation of refractory pollutants[J].AICHEJournal,2004,50(7):1647-1650.
[15]徐航,李梅,于天龙.不同反应器形式下纳米Zn O光催化降解活性红[J].河南科技大学学报:自然科学报,2014,35(1):97-100.
[16]李冬冬,佘江波,王丽莉,等.二氧化钛负载光纤型光催化反应器的研究进展[J].中国光学,2013,6(4):513-520.
[17]欧耳,王理明,郭雅妮,等.柔性纤维负载Ti O2光催化反应器的设计[J].西安工程大学学报,2018,32(1):56-60.
[18]Yasminek,Emad,Adham R,et al.Sand supported Ti O2photocatalyst in a tray photo-reactor for the removal of emerging contaminants in wastewater[C].Prague:Catalysis Today,2018.
[19]魏冰,张巧玲,刘有智,等.旋转盘反应器中H2O2/Ti O2光催化氧化降解含酚废水[J].化学工程,2016,44(5):11-16.
[20]马瑶瑶,潘保宏,徐志杰,等.新型光催化水处理反应器的研究进展及展望[J].建材世界,2018,39(1):83-86.
[21]马驰远,董永全,段吴燕,等.Ti O2光催化膜反应器处理有机废水的研究[J].水处理技术,2014,40(5):59-62.
[22]魏永,赵威,董秉直.TiO2/UV光催化氧化偶合膜分离处理太湖水的效果[J].中国给水排水,2017,33(15):52-57.
[23]Fernandez R,Coleman H,Leclech P.Impact of operating conditions on the removal of endocrine disrupting chemicals by membrane photocatalytic reactor[J].Environmental Technology,2014,35(16):2068-2074.
[24]张宏忠,张钰,王明花,等.新型光催化膜反应器的设计及性能研究[J].膜科学与技术,2017,37(2):109-113.
[25]肖国生.管式光催化反应器的研发及其降解四环素废水的性能研究[D].长春:吉林大学,2016.
[26]王玉春,张丽,董丽华.光催化氧化法污水处理反应器的研究进展[J].科技信息,2012,(15):94-95.
[27]李鹏,樊少峰,康小华.二氧化钛光催化在现代污染控制中的应用[J].广东化工,2017,44(18):110-111.
[28]费学宁,董业硕,陈磊,等.微米级负载型Ti O2催化剂在光催化-膜分离反应器中的应用[J].环境工程学报,2014,8(1):162-169.
[29]杨中国.液-固流化床及气-液鼓泡塔光催化微小反应器的研究[D].天津:天津大学,2016.