Abstract:Using expanded perlite(EP) as a floating carrier, the BiOCl0.6I0.4/GO photocatalyst was synthesized by water bath method and its removal efficiency on Microcystis aeruginosa under visible light was investigated as well. The composition and morphology of synthesized samples were characterized by XRD, SEM, FTIR spectra, UV-Vis DRS and XPS. Results indicated that the synthesized BiOCl0.6I0.4/GO/EP composite showed better algae removal performance than that of BiOCl0.6I0.4/EP and GO/EP. Even after four cycles reuse, the composite still showed better photocatalytic activity. Furthermore, free radical capture experiment proved that photo-generated holes (h+) were the main active species for the inactivation of algae in photocatalytic process. Finally, according to the energy band analysis and free radical capture experiment, the mechanism of BiOCl0.6I0.4/GO/EP composite was proposed.
Gobler C J, Doherty O M, Hattenrath-Lehmann T K, et al. Ocean warming since 1982has expanded the niche of toxic algal blooms in the North Atlantic and North Pacific oceans[J]. PNAS, 2017,114(19):4975-80.
[2]
Thees A, Atari E, Birbeck J, et al. Isolation and Characterization of Lake Erie Bacteria that Degrade the Cyanobacterial Microcystin Toxin MC-LR[J]. Journal of Great Lakes Research, 2019,45(1):138-49.
[3]
孙凤,俞鸿飞,胥辰卉,等.蓝藻胞外聚合物对供水管网水质的影响[J]. 中国环境科学, 2020,40(12):5343-5351.Sun F, Yu H F, Xu C H, et al. Influence of cyanobacterial extracellular polymeric substances on the water quality in water supply distribution system[J]. China Environmental Science, 2020,40(12):5343-5351.
[4]
宋靖珂,王学江,王佳忆,等.漂浮型Ag2CrO4-g-C3N4-TiO2/膨胀珍珠岩可见光催化材料除藻性能[J]. 复合材料学报, 2021,38(6):1914-1921.Song J, Wang X J, Wang J Y, et al. Photocatalytic inactivation of algae using floating visible-light-responsive photocatalyst Ag2CrO4-g-C3N4-TiO2/modified expanded perlite[J]. Acta Materiae Compositae Sinica, 2021,38(6):1914-1921.
[5]
Park J, Church J, Son Y, et al. Recent advances in ultrasonic treatment:Challenges and field applications for controlling harmful algal blooms (HABs)[J]. Ultrasonics Sonochemistry, 2017,38(17):326-334.
[6]
Wang X, Song J, Zhao J, et al. In-situ active formation of carbides coated with NP-TiO2 nanoparticles for efficient adsorption-photocatalytic inactivation of harmful algae in eutrophic water[J]. Chemosphere, 2019,228(19):351-359.
[7]
Fan G, Du B, Zhou J, et al. Stable Ag2O/g-C3N4p-n heterojunction photocatalysts for efficient inactivation of harmful algae under visible light[J]. Applied Catalysis B:Environmental, 2020,265:118610.
[8]
He Y, Sutton N B, Rijnaarts H H H, et al. Degradation of pharmaceuticals in wastewater using immobilized TiO2 photocatalysis under simulated solar irradiation[J]. Applied Catalysis B:Environmental, 2016,182:132-141.
[9]
Reddy P A K, Reddy P V L, Kwon E, et al. Recent advances in photocatalytic treatment of pollutants in aqueous media[J]. Environment International, 2016,91:94-103.
[10]
Liu I, Lawton L A, et al. Mechanistic studies of the photocatalytic oxidation of microcystin-LR:an investigation of byproducts of the decomposition process[J]. Environmental science & technology, 2003,37(14):3214-3219.
[11]
Wang X, Wang X, Song J, et al. A highly efficient TiOX (X=N and P) photocatalyst for inactivation of Microcystis aeruginosa under visible light irradiation[J]. Separation and Purification Technology, 2019,222:99-108.
[12]
郭梅,任学昌,王建钊,等.TiO2/pg-C3N4复合催化剂的制备及光催化性能[J]. 中国环境科学, 2019,39(12):5119-5125.Guo M, Ren X C, Wang J Z, et al. Preparation and photocatalytic properties of TiO2/pg-C3N4 composite photocatalyst[J]. China Environmental Science, 2019,39(12):5119-5125.
[13]
Wang C, Zhao Y, Xu H, et al. Efficient Z-scheme photocatalysts of ultrathin g-C3N4-wrapped Au/TiO2-nanocrystals for enhanced visible-light-driven conversion of CO2 with H2O[J]. Applied Catalysis B:Environmental, 2020,263:118314.
[14]
Zhang G, Cai L, Zhang Y, et al. Bi5+, Bi(3-x)+, and oxygen vacancy induced BiOClxI1-x solid solution toward promoting visible-light driven photocatalytic activity[J]. Chemistry, 2018,24(29):7434-7444.
[15]
罗伟,冯晓青,黄影,等.微波水热合成花球状BiOCl光催化降解甲硝唑[J]. 中国环境科学, 2020,40(4):1545-1554.Luo W, Feng X Q, Huang Y, et al. Photocatalytic degradation of metronidazole using flower-like BiOCl prepared by microwave hydrothermal method[J]. China Environmental Science, 2020,40(4):1545-1554.
[16]
Chen Y, Zhu G, Liu Y, et al. Preparation of hollow Ag/AgCl/BiOCl microspheres with enhanced photocatalytic activity for methyl orange under LED light irradiation[J]. Journal of Materials Science:Materials in Electronics, 2016,28(3):2859-2866.
[17]
Liu Y, Son W J, Lu J, et al. Composition dependence of the photocatalytic activities of BiOCl1-xBrx solid solutions under visible light[J]. Chemistry-A European Journal, 2011,17(34):9342-9349.
[18]
Xu H Y, Lu D, Tan Q, et al. Visible-light-driven photocatalytic degradation of rhodamine B in water by BiOClxI1-x solid solutions[J]. Water Science and Technology, 2020,81(5):1080-1089.
[19]
Hu X, Zhang Y, Wang B, et al. Novel g-C3N4/BiOClxI1-x nanosheets with rich oxygen vacancies for enhanced photocatalytic degradation of organic contaminants under visible and simulated solar light[J]. Applied Catalysis B:Environmental, 2019,256:117789.
[20]
Fan G, Chen Z, Hong L, et al. Simultaneous removal of harmful algal cells and toxins by a Ag2CO3-N:GO photocatalyst coating under visible light[J]. Science of the Total Environment, 2020,741:140341.
[21]
张志伟,徐斌,张毅敏,等.GO/(CeO2-TiO2)改性复合膜紫外光催化去除氨氮、DOC[J]. 中国环境科学, 2020,40(3):1116-1122.Zhang Z W, Xu B, Zang Y M, et al. Ultraviolet photocatalytic removal of ammonia nitrogen and DOC by GO/(CeO2-TiO2) modified composite membrane[J]. China Environmental Science, 2020,40(3):1116-1122.
[22]
Sun X, Du Y, Li Z, et al. Facile synthesis of g-C3N4/BiOClxI1-x hybrids with efficient charge separation for visible-light photocatalysis[J]. Ceramics International, 2020,46(8):10843-10850.
[23]
Adenuga D O, Tichapondwa S M, Chirwa E M N. Facile synthesis of a Ag/AgCl/BiOCl composite photocatalyst for visible-light-driven pollutant removal[J]. Journal of Photochemistry and Photobiology A:Chemistry, 2020,401:112747.
[24]
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.
[25]
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.
[26]
Fan G, Chen Z, Wang B, et al. Photocatalytic removal of harmful algae in natural waters by Ag/AgCl@ZIF-8 coating under sunlight[J]. Catalysts, 2019,9(8):698.
[27]
Vali Aftari R, Rezaei K, Mortazavi A, et al. The Optimized concentration and purity of spirulina platensis C-Phycocyanin:A comparative study on microwave-assisted and ultrasound-assisted extraction methods[J]. Journal of Food Processing and Preservation, 2015,39(6):3080-3091.
[28]
Padgett M P, Krogmann D W. Large scale preparation of pure phycobiliproteins[J]. Photosynthesis Research, 1987,11(3):225-235.
[29]
Fan G, Zhan J, Luo J, et al. Fabrication of heterostructured Ag/AgCl@g-C3N4@UIO-66(NH2) nanocomposite for efficient photocatalytic inactivation of Microcystis aeruginosa under visible light[J]. Journal of Hazardous Materials, 2021,404:124062.
[30]
Ma X, Chen K, Niu B, et al. Preparation of BiOCl0.9I0.1/β-Bi2O3 composite for degradation of tetracycline hydrochloride under simulated sunlight[J]. Chinese Journal of Catalysis, 2020,41(10):1535-1543.
[31]
Fan G, Hong L, Luo J, et al. Photocatalytic inactivation of harmful algae and degradation of cyanotoxins microcystin-LR using GO-based Z-scheme nanocatalysts under visible light[J]. Chemical Engineering Journal, 2020,392:123767.
[32]
Bradder P, Ling S K, Wang S, et al. Dye adsorption on layered graphite oxide[J]. Journal of Chemical & Engineering Data, 2011, 56(1):138-141.
[33]
Liu Z S, Wang J X. Face-to-face BiOCl/BiO2-x heterojunction composites with highly efficient charge separation and photocatalytic activity[J]. Journal of Alloys and Compounds, 2020,832:153771.
[34]
Maisang W, Promnopas S, Kaowphong S, et al. Microwave-assisted hydrothermal synthesis of BiOBr/BiOCl flowerlike composites used for photocatalysis[J]. Research on Chemical Intermediates, 2020, 46(4):2117-2135.
[35]
Zhang X, Wang D, Man X, et al. Influence of BiOIO3 morphology on the photocatalytic efficiency of Z-scheme BiOIO3/g-C3N4 heterojunctioned composite for Hg(0) removal[J]. Journal of colloid and interface science, 2020,558:123-136.
[36]
张进,郭迎春,刘婵璐,等.漂浮型BiFeO3/膨胀珍珠岩的制备及其可见光催化性能[J]. 无机化学学报, 2021,37(5):905-913.Zhang J, Guo Y C, Liu C L, et al.Synthesis and visible light driven photocatalytic properties of floating BiFeO3/expanding perlite photocatalysts[J]. Chinese journal of inorganic chemistry, 2021,37(5):905-913.
[37]
Asl E A, Haghighi M, Talati A. Sono-solvothermal fabrication of flowerlike Bi7O9I3-MgAl2O4pn nano-heterostructure photocatalyst with enhanced solar-light-driven degradation of methylene blue[J]. Solar Energy, 2019,184:426-439.
[38]
Bayode A A, Vieira E M, Moodley R, et al. Tuning ZnO/GO p-n heterostructure with carbon interlayer supported on clay for visible-light catalysis:Removal of steroid estrogens from water[J]. Chemical Engineering Journal, 2020:127668.
[39]
Qian S, Pu S, Zhang Y, et al. New insights on the enhanced non-hydroxyl radical contribution under copper promoted TiO2/GO for the photodegradation of tetracycline hydrochloride[J]. Journal of Environmental Sciences, 2021,100:99-109.
[40]
Xu M M, Zhao Y L, Yan Q S. Efficient visible-light photocatalytic degradation of sulfadiazine sodium with hierarchical Bi7O9I3 under solar irradiation[J]. Water Science and Technology, 2015,72(12):2122-2131.
[41]
Liu H, Su Y, Chen Z, et al. Bi7O9I3/reduced graphene oxide composite as an efficient visible-light-driven photocatalyst for degradation of organic contaminants[J]. Journal of Molecular Catalysis A:Chemical, 2014,391:175-182.
[42]
Wu K, Qin Z, Zhang X, et al. Z-scheme BiOCl/Bi-Bi2O3 heterojunction with oxygen vacancy for excellent degradation performance of antibiotics and dyes[J]. Journal of Materials Science, 2019,55(9):4017-4029.
[43]
Shown I, Hsu H C, Chang Y C, et al. Highly efficient visible light photocatalytic reduction of CO2 to hydrocarbon fuels by Cu-nanoparticle decorated graphene oxide[J]. Nano Lett, 2014,14(11):6097-6103.
[44]
Fan G, Zhou J, Zheng X, et al. Fast photocatalytic inactivation of Microcystis aeruginosa by metal-organic frameworks under visible light[J]. Chemosphere, 2020,239:124721.
[45]
Tan L, Wang X, Tan X, et al. Bonding properties of humic acid with attapulgite and its influence on U(VI) sorption[J]. Chemical Geology, 2017,464:91-100.
[46]
Yin K, Deng Y, Liu C, et al. Kinetics, pathways and toxicity evaluation of neonicotinoid insecticides degradation via UV/chlorine process[J]. Chemical Engineering Journal, 2018,346:298-306.
[47]
Fan G, Chen W, Luo J, et al. Damaging effects of ultrasonic treatment on the photosynthetic system of Microcystis aeruginosa[J]. Desalination and Water Treatment, 2017,78:350-359.
[48]
Zhou S, Yin H, Tang S, et al. Physiological responses of Microcystis aeruginosa against the algicidal bacterium Pseudomonas aeruginosa[J]. Ecotoxicology and environmental safety, 2016,127:214-221.
[49]
Lu R, Liu P, Chen X. Study the toxicity to Microcystis aeruginosa induced by TiO2 nanoparticles photocatalysis under UV light[J]. Bulletin of environmental contamination and toxicology, 2015,94(4):484-489.
[50]
Zhang Z, Pan Z, Guo Y, et al. In-situ growth of all-solid Z-scheme heterojunction photocatalyst of Bi7O9I3/g-C3N4 and high efficient degradation of antibiotic under visible light[J]. Applied Catalysis B:Environmental, 2020,261:118212.
[51]
Yang J, Liu Z, Wang Y, et al. Construction of a rod-like Bi2O4 modified porous g-C3N4 nanosheets heterojunction photocatalyst for the degradation of tetracycline[J]. New Journal of Chemistry, 2020, 44(23):9725-9735.
[52]
Motlagh H F, Haghighi M, Shabani M. Sono-solvothermal fabrication of ball-flowerlike Bi2O7Sn2-Bi7O9I3 nanophotocatalyst with efficient solar-light-driven activity for degradation of antibiotic tetracycline[J]. Solar Energy, 2019,180:25-38.