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本研究构建以Ti/RuO2-IrO2-SnO2-Sb为阳极，不锈钢为阴极的电催化体系，以赤潮异弯藻为目标微生物研究体系对微藻的抑制及去除效果进行了研究。通过电化学方法研究了电极的电化学性能，并通过扫描电子显微镜(Scanning Electron Microscope, SEM)、X射线衍射(X-ray Diffraction, XRD)、X射线光电子能谱(X-ray Photoelectron Spectroscopy, XPS)研究了电极的形貌、微观结构，改变电解时间、电流密度、电极面积以探讨体系灭活微藻的效果，分析了电催化主要生成氧化物。结果表明：电极金属氧化物表现为相互叠加，状态稳定，具有良好的电化学性能，施加电压2 min,电流密度60 mA/cm2、电极面积为6 cm2时，120 min时微藻灭活率可达到93.5%。电催化灭藻主要氧化物为HClO/ClO~-,总剩余氧化物(Total residual oxidant, TRO)随时间衰减，为电催化体系提供持续氧化能力。研究表明，电催化体系能有效灭活微藻并对灭活微藻具有持续作用，研究可为船舶压载水处理提供参考。
Abstract：In this study, an electrocatalytic system was constructed using Ti/RuO2-IrO2-SnO2-Sb as the anode and stainless steel as the cathode, targeting the microalga Heterosigma akashiwo to investigate the inhibition and removal efficiency of the system. The electrochemical performance of the electrodes was studied using electrochemical methods, and the morphology and microstructure of the electrodes were characterized using SEM, XRD, and XPS. The algal inactivation efficiency of the system was explored by varying the electrolysis time, current density, and electrode area. The primary oxidants generated during electrocatalysis were also analyzed. The results indicated that the electrode metal oxides were well overlaid and stable, exhibiting good electrochemical performance. When a voltage was applied for 2 minutes at a current density of 60 mA/cm2 and an electrode area of 6 cm2, the inactivation rate of microalgae reached 93.5% after 120 minutes. The main oxidants generated during electrocatalytic algal inactivation were identified as HClO/ClO~-, and the total residual oxidants(TRO) exhibited a time-dependent decay, providing sustained oxidizing capacity to the electrocatalytic system. The study demonstrated that the electrocatalytic system effectively inactivated microalgae and maintained a prolonged inactivation effect, offering a potential reference for the treatment of ballast water in ships.
[1]Gao Y,Ao Z,Yang L.Study on the rapid inactivation of Microcystis aeruginosa by electrogenerated active chlorine[J].Journal of Environmental Chemical Engineering,2024,12(6):114963.
[2]Outinen O,Bailey S A,Casas-Monroy O,et al.Biological testing of ships'ballast water indicates challenges for the implementation of the Ballast Water Management Convention[J].Front Marine Science,2024,11:133428.
[3]张卫东,杜彬,曲慧芳,等.船舶压载水处理技术研究背景、进展与面临的挑战[J].海洋工程装备与技术,2023,10(4):1-10.Zhang W D,Du B,Qu H F,et al.Research background,progress,and challenges of ballast water treatment technology[J].Marine Engineering Equipment and Technology,2023,10(4):1-10.
[4]侯轶仁.船舶压载水处理系统仿真与控制研究[D].武汉:武汉理工大学,2022.Hou Y R.Research on Simulation and Control of Ship Ballast Water Treatment System[D].Wuhan:Wuhan University of Technology,2022.
[5]Lakshmi E,Priya M,Achari V S.An overview on the treatment of ballast water in ships[J].Ocean&Coastal Management,2021,199:105296.
[6]Wu H,Cheng F,Wang Q,et al.Evaluating the biological efficacy of a ballast water management system using filtration and electrocatalysis with an accurate definition of holding time[J].Water Science and Technology,2021,84(8):1908-1918.
[7]Cha G,Choi S,Lee H,et al.Improving energy efficiency of pretreatment for seawater desalination during algal blooms using a novel meshed tube filtration process[J].Desalination,2020,486:114477.
[8]Pecarevic M,Mikus J,Prusina I,et al.New role of hydrocyclone in ballast water treatment[J].Journal of Cleaner Production,2018,188:339-346.
[9]Sun Z,Blatchley E R.Tetraselmis as a challenge organism for validation of ballast water UV systems[J].Water Research,2017,121:311-319.
[10]Wang Z,Liang W,Guo X,et al.Inactivation of Scrippsiella trochoidea cysts by different physical and chemical methods:Application to the treatment of ballast water[J].Marine Pollution Bulletin,2018,126:150-158.
[11]Sun P,Cheng L,Gao S,et al.Industrial chlorinated organic removal with elimination of secondary pollution:A perspective[J].The Journal of Physical Chemistry C,2023,127(14):6610-6618.
[12]Estevez-Calvar N,Gambardella C,Miraglia F,et al.Potential use of an ultrasound antifouling technology as a ballast water treatment system[J].Journal of Sea Research,2018,133:115-123.
[13]Fan G,Zhan J,Luo J,et al.Fabrication of heterostructured Ag/AgCl@g-C_3N_4@UIO-66(NH_2)nanocomposite for efficient photocatalytic inactivation of Microcystis aeruginosa under visible light[J].Journal of Hazardous Materials,2021,404:124062.
[14]Zhang M,Wang Y,Wu X,et al.Potential of ozone micro-bombs in simultaneously fast removing bloom-forming cyanobacteria and in situ degrading microcystins[J].Chemical Engineering Journal,2021,407:127186.
[15]Cao L,Wang Z,Cheng Y,et al.Reinvestigation on themechanism for algae inactivation by the ultraviolet/peracetic acid process; Role of reactive species and performance in natural water[J].Environmental Science&Technology,2023,57(45):17629-17639.
[16]Sdnchez-Montes I,Santos G O S,dos Santos A J,et al.Toxicological aspect of water treated by chlorine-based advanced oxidation processes:A review[J].Science of the Total Environment,2023,878:163047.
[17]Lauzurique Y,Miralles-Cuevas S,Godoy M,et al.Elimination of sulfamethoxazole by anodic oxidation using mixed metal oxide anodes[J].Journal of Water Process Engineering,2023,54:103922.
[18]Ma J,Trellu C,Oturan N,et al.Development of Ti/TiOx foams for removal of organic pollutants from water; Influence of porous structure of Ti substrate[J].Applied Catalysis B:Environmental,2022,317:121736.
[19]Santos G O S,P J M Cordeiro-Junior,Sdnchez-Montes I,et al.Recent advances in H_2O_2 electrosynthesis based on the application of gas diffusion electrodes:Challenges and opportunities[J].Current Opinion in Electrochemistry,2022,36:101124.
[20]Zhou S,Bu L,Shi Z,et al.Electrochemical inactivation of Microcystis aeruginosa using BDD electrodes; Kinetic modeling of microcystins release and degradation[J].Journal of Hazardous Materials,2018,346:73-81.
[21]李阳,王文虎,赵姗姗,等.钛基锡锑氧化物涂层电极制备及其在化工废水处理中的应用[J].现代化工,2022,42(5):59-62+67.Li Y,Wang W H,Zhao S S,et al.Preparation of titanium-based tin-antimony oxide coating electrodes and their application in chemical wastewater treatment[J].Modern Chemical Industry,2022,42(5):59-62+67.
[22]Xue M,Zhao J,Yu X,et al.Facilitating electrochemical Ozone production and Chlorine evolution reaction by synergistic effect of multicomponent metal oxides[J].Advanced Functional Materials,2024,34(1):2308567.
[23]Cai C,Fan G,Cao X,et al.Novel Ag_3PO_4/ZnWO_4-modified graphite felt electrode for photoelectrocatalytic removal of harmful algae:Performance and mechanism[J].Journal of Hazardous Materials,2024,470:134198.
[24]Du X,Zhi X,Li B,et al.Boron doped diamond electro-oxidation coupled with ultrafiltration for Microcystis aeruginosa and Microcystins removal in offshore environment:The significance of insitu generation of chloramine and membrane fouling mitigation[J].Separation and Purification Technology,2023,306:122579.
[25]Zhou Y,Peng H,Jiang L,et al.Control of cyanobacterial bloom and purification of bloom-laden water by sequential electro-oxidation and electro-oxidation-coagulation[J].Journal of Hazardous Materials,2024,462:132729.
[26]Vos J G,Liu Z,Speck F D,et al.Selectivity trends between oxygen evolution and chlorine evolution on iridium-based double perovskites in acidic media[J].ACS Catal,2019,9(9):8561-8574.
[27]Lyons M E G,Floquet S.Mechanism of oxygen reactions at porous oxide electrodes.Part 2—Oxygen evolution at RuO_2,IrO_2and IrxRu1-xO_2 electrodes in aqueous acid and alkaline solution[J].Physical Chemistry Chemistry Physics,2011,13(12):5314-5335.
[28]Takasu Y,Sugimoto W,Nishiki Y,et al.Structural analyses of RuO_2-TiO_2/Ti and IrO_2-RuO_2-TiO_2/Ti anodes used in industrial chlor-alkali membrane processes[J].Journal of Applied Electrochemistry,2010,40(10):1789-1795.
[29]Gonzaga I M D,Doria A R,Castro R S S,et al.Microwave-prepared Ti/RuO_2-IrO_2 anodes; Influence of IrO_2 content on atrazine removal[J].Electrochimica Acta,2022,426:140782.
[30]Jadhav H,Suryawanshi S,More M A,et al.Pulsed laser deposition of tin oxide thin films for field emission studies[J].Applied Surface Science,2017,419:764-769.
[31]Martinez-Hincapie R,Wegner J,Anwar M U,et al.The determination of the electrochemically active surface area and its effects on the electrocatalytic properties of structured nickel electrodes produced by additive manufacturing[J].Electrochimica Acta,2024,476:143663.
[32]Lai W,Yang X,Hua Z,et al.Differentiating reactive chlorine species for micropollutant abatement in chloride containing water by electrochemical oxidation process[J].Water Research,2025,271:122984.
[33]Chen Y,Zaman F,Jia Y,et al.Harmful cyanobacterial bloom control with hydrogen peroxide:Mechanism,affecting factors,development,and prospects[J].Current Pollution Reports,2024,10(4):566-579.
[34]Moreira F C,Boaventura R A R,Brillas E,et al.Electrochemical advanced oxidation processes:A review on their application to synthetic and real wastewaters[J].Applied Catalysis B:Environmental,2017,202:217-261.
[35]Zheng Q,Tian C,Zhang Y,et al.Studies on DNA fragmentation and cell integrity of rapidly hydroxyl radical inactivated Microcystis aeruginosa[J].Chemical Engineering Journal,2023,454:140414.
[36]Wang H,Zhao Y,Yin S,et al.Antagonism toxicity of CuO nanoparticles and mild ocean acidification to marine algae[J].Journal of Hazardous Materials,2023,448:130857.
[37]Li Y,Xu D,Zheng H,et al.Light-driven inactivation of harmful algae Microcystis aeruginosa and degradation of microcystin by oxygen-doped carbon nitride nanosheets[J].Chemical Engineering Journal,2021,417:128094.
基本信息:
DOI：10.16441/j.cnki.hdxb.20250053
中图分类号:U664.92;X55
引用信息:
[1]张露荷,魏笑,许振钰,等.Ti/RuO_2-IrO_2-SnO_2-Sb阳极电催化灭活海水微藻[J].中国海洋大学学报(自然科学版),2026,56(02):94-102.DOI:10.16441/j.cnki.hdxb.20250053.
基金信息:
中央高校基本科研业务费专项(201964004)资助~~
2026-02-02
2026-02-02