纳米TiO_2光催化去除水华藻类的研究进展
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摘要
由水体富营养化而引起的蓝藻水华是目前全球面临的重大水环境问题,严重威胁水生生态环境以及人类的健康。综述了近年来以TiO_2为代表的纳米材料光催化技术在蓝藻水华治理方面的研究现状,其中光催化负载体技术与可见光响应下高效光催化性能的研究广泛;归纳并总结了TiO_2抑制蓝藻生长光催化机理的一般规律性以及其对蓝藻细胞作用的活性氧(ROS)破坏机制。TiO_2光催化技术未来的发展趋势具有长期可行性,但在实际应用中新型结构单元的高效光催化剂的探索,负载装置应用的完善以及对水体中有害毒素的去除仍然是研究的难题。
The cyanobacteria bloom caused by eutrophication of water is a major water environmental problem facing the world,which seriously threatens the aquatic ecological environment and human health.The research status of nano-material photocatalysis technology represented by TiO_2 in the treatment of cyanobacterial blooms is reviewed.Supporters for photocatalysis and catalysts with high-efficiency photocatalytic performance under visible light response are widely studied.Furthermore,the general rule of photocatalytic mechanism of TiO_2 inhibiting cyanobacterial growth and destruction of reactive oxygen species(ROS) in cyanobacterial cells are summarized.The future development trend of TiO_2 photocatalysis technology has long-term feasibility,but in practical applications,the exploration of high-efficiency photocatalysts of new structural units,the improvement of load device application,and the removal of harmful toxins in water are still challenges.
The cyanobacteria bloom caused by eutrophication of water is a major water environmental problem facing the world,which seriously threatens the aquatic ecological environment and human health.The research status of nano-material photocatalysis technology represented by TiO_2 in the treatment of cyanobacterial blooms is reviewed.Supporters for photocatalysis and catalysts with high-efficiency photocatalytic performance under visible light response are widely studied.Furthermore,the general rule of photocatalytic mechanism of TiO_2 inhibiting cyanobacterial growth and destruction of reactive oxygen species(ROS) in cyanobacterial cells are summarized.The future development trend of TiO_2 photocatalysis technology has long-term feasibility,but in practical applications,the exploration of high-efficiency photocatalysts of new structural units,the improvement of load device application,and the removal of harmful toxins in water are still challenges.
引文
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[25]尹海川.掺杂纳米二氧化钛光催化抑杀蓝藻生长的研究[D].昆明:昆明理工大学,2006.Yin Haichuan.Study on photocatalytic activity of doped nano-TiO2 to kill cyanobacteria[D].Kunming:Kunming University of Science and Technology,2006.
[26]Ninomiya K,Ogino C,Kawabata S,et al.Ultrasonic inactivation of microcystis aeruginosa in the presence of TiO2 particles[J].Journal of Bioscience & Bioengineering,2013,116(2):214.
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[28]谷娜,高金龙,董文翠,等.光辅助下TiO2-蒙脱土复合材料抑杀蓝藻[J].环境工程学报,2015,9(6):2822-2828.Gu Na,Gao Jinlong,Dong Wencui,et al.Cyanobacteria inhibition by TiO2/montmorillonite composites under light[J].Chinese Journal of Enviroment Engineering,2015,9(6):2822-2828.
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[30]Wang X,Wang X,Zhao J,et al.Surface modified TiO2 floating photocatalyst with PDDA for efficient adsorption and photocatalytic inactivation of Microcystis aeruginosa[J].Water Research,2017,131:320.
[2] Pael H , Huisman J. Blooms like it hot[J].Science,2008,320(5872):57-58.
[3]谢平.蓝藻水华及其次生危害[J].水生态学杂志,2015,36(4):1-13.Xie Ping.Cyanobacterial blooms and their secondary harms[J].Journal of Hydroecology,2015,36(4):1-13.
[4]Sathe P,Myint M T Z,Dobretsov S,et al.Removal and regrowth inhibition of microalgae using visible light photocatalysis with ZnO nanorods:A green technology[J].Separation & Purification Technology,2016,162:61-67.
[5]Peller J R,Whitman R L,Griffith S,et al.TiO2, as a photocatalyst for control of the aquatic invasive alga, Cladophora, under natural and artificial light[J].Journal of Photochemistry & Photobiology A Chemistry,2007,186(2):212-217.
[6]Ochiai T,Fukuda T,Nakata K,et al.Photocatalytic inactivation and removal of algae with TiO2-coated materials[J].Journal of Applied Electrochemistry,2010,40(10):1737-1742.
[7]Huang W J,Lin T P,Chen J S,et al.Photocatalytic inactivation of cyanobacteria with ZnO/gamma-Al2O3 composite under solar light[J].Journal of Environmental Biology,2011,32(3):301-307.
[8]Yu X J,Zhou J Y,Wang Z P,et al.Preparation of visible light-responsive AgBiO3 bactericide and its control effect on the Microcystis aeruginosa[J].Journal of Photochemistry & Photobiology B:Biology,2010,101(3):265.
[9]Gu N,Gao J,Wang K,et al.ZnO-montmorillonite as photocatalyst and flocculant for inhibition of cyanobacterial bloom[J].Water Air & Soil Pollution,2015,226(5):1-12.
[10]Gu N,Gao J L,Wang K T,et al.ZnO/SnO2/montmorillonite composite for inhibition of cyanobacterial bloom[J].Advanced Materials Research,2014,1061-1062:166-169.
[11]Gu N,Gao J,Li H,et al.Montmorillonite-supported with Cu2O nanoparticles for damage and removal of Microcystis aeruginosa, under visible light[J].Applied Clay Science,2016,132-133:79-89.
[12]Gu N,Gao J,Wang K,et al.Microcystis aeruginosa, inhibition by Zn-Fe-LDHs as photocatalyst under visible light[J].Journal of the Taiwan Institute of Chemical Engineers,2016,64:189-195.
[13]Sathe P,Myint M T Z,Dobretsov S,et al.Removal and regrowth inhibition of microalgae using visible light photocatalysis with ZnO nanorods:a green technology[J].Separation & Purification Technology,2016,162:61-67.
[14]Song J,Wang X,Ma J,et al.Visible-light-driven in situ, inactivation of Microcystis aeruginosa, with the use of floating g-C3N4,heterojunction photocatalyst:performance, mechanisms and implications[J].Applied Catalysis B:Environmental,2018,226:83-92.
[15]He Y Y,H?der D P.Involvement of reactive oxygen species in the UV-B damage to the cyanobacterium Anabaena sp. [J].Journal of Photochemistry and Photobiology B:Biology,2002,66:73-80.
[16]Atsuko Y Nosaka,Toshimichi Fujiwara,Hiromasa Yagi,et al.Photocatalytic reaction sites at the TiO2 surface as studied by solid-state 1H NMR spectroscopy[J].Langmuir,2003,19(6):1935-1937.
[17]Li M,Chen D,Yang L,et al.Exposure of engineered nanoparticles to alexandrium tamarense,(Dinophyceae):healthy impacts of nanoparticles via toxin-producing dinoflagellate[J].Science of the Total Environment,2017,356:610-611.
[18]Parke D V.Free radicals in biology and medicine[J].Febs Letters,2009,284(1):135-136.
[19]Peller J R,Whitman R L,Griffith S,et al.TiO2 as a photocatalyst for control of the aquatic invasive alga,Cladophora,under natural and artificial light[J].Journal of Photochemistry and Photobiology A:Chemistry 2007,186:212-217.
[20]Huang Z,Gao Z,Gao S,et al.Facile synthesis of S-doped reduced TiO2-x with enhanced visible-light photocatalytic performance[J].Chinese Journal of Catalysis,2017,38(5):821-830.
[21]Zalas M.Synthesis of N-doped template-free mesoporous titania for visible light photocatalytic applications[J].Catalysis Today,2014,230:91-96.
[22]Wang X,Wang X,Zhao J,et al.Efficient visible light-driven in situ photocatalytic destruction of harmful alga by worm-like N, P co-doped TiO2/expanded graphite carbon layer(NPT-EGC) floating composites[J].Catalysis Science & Technology,2017,7(11):2335-2346.
[23]Xiao J,Xie Y,Cao H,et al.Disparate roles of doped metal ions in promoting surface oxidation of TiO2,photocatalysis[J].Journal of Photochemistry & Photobiology A:Chemistry,2016,315:59-66.
[24]Chang S Y,Huang W J,Lu B R,et al.An environmentally friendly method for testing photocatalytic inactivation of cyanobacterial propagation on a hybrid Ag-TiO2 photocatalyst under solar illumination[J].International Journal of Environmental Research & Public Health,2015,12(12):15819-15833.
[25]尹海川.掺杂纳米二氧化钛光催化抑杀蓝藻生长的研究[D].昆明:昆明理工大学,2006.Yin Haichuan.Study on photocatalytic activity of doped nano-TiO2 to kill cyanobacteria[D].Kunming:Kunming University of Science and Technology,2006.
[26]Ninomiya K,Ogino C,Kawabata S,et al.Ultrasonic inactivation of microcystis aeruginosa in the presence of TiO2 particles[J].Journal of Bioscience & Bioengineering,2013,116(2):214.
[27]刘军,江栋,胡和平,等.固载型TiO2光催化反应器对富营养水体杀藻作用研究[J].环境工程学报,2007,(3):41-45.Liu Jun,Jiang Dong,Hu Heping,et al. Inativation of alage by photocatalytic reactor using inmobilized TiO2 onto nickel foam[J].Chinese Journal of Enviroment Engineering. 2007,(3):41-45.
[28]谷娜,高金龙,董文翠,等.光辅助下TiO2-蒙脱土复合材料抑杀蓝藻[J].环境工程学报,2015,9(6):2822-2828.Gu Na,Gao Jinlong,Dong Wencui,et al.Cyanobacteria inhibition by TiO2/montmorillonite composites under light[J].Chinese Journal of Enviroment Engineering,2015,9(6):2822-2828.
[29]Wang X,Wang X,Zhao J,et al.Solar light-driven photocatalytic destruction of cyanobacteria by F-Ce-TiO2/expanded perlite floating composites[J].Chemical Engineering Journal,2017,320:253-263.
[30]Wang X,Wang X,Zhao J,et al.Surface modified TiO2 floating photocatalyst with PDDA for efficient adsorption and photocatalytic inactivation of Microcystis aeruginosa[J].Water Research,2017,131:320.