以Triton X-100作为表面活性剂制备了玫瑰花状三维分级微/纳米结构氧化锌(Rose-ZnO),通过X射线衍射仪、热重分析仪、扫描电子显微镜和高性能比表面积及微孔分析仪对样品的形貌及结构进行表征,探究温度、时间和模板剂用量对Rose-ZnO形貌的影响,并以盐酸四环素(TC)为目标降解产物考察其光催化性能。结果表明,以质量分数2.4%的Triton X-100为模板剂,在140℃、8h的水热条件和450℃的煅烧条件下,能够得到形貌较好、纯度较高的Rose-ZnO,经过500W氙灯全谱光照80min后,30mg Rose-ZnO对质量浓度50mg/L的TC溶液降解效率达到97%。
The rose-like 3D hierarchical micro/nano-structured ZnO (Rose-ZnO) was prepared using Triton X-100 as surfactant.The morphology and structure of the sample were characterized and analyzed by XRD,TG,SEM and BET.The effects of temperature,time and the amount of template on the morphology of Rose-ZnO were investigated,and used tetracycline hydrochloride (TC) as the degradation target product to investigate its photocatalytic performance.The results showed that Rose-ZnO with good morphology and high purity could be obtained by using 2.4wt.% Triton X-100 as template at 140℃,8h hydrothermal condition and 450℃ calcination condition.The degradation rate of 50mg/L TC solution can reach 97% when the concentration was 30mg.
[1] Szekeres E,Chiriac C M,Baricz A,et al.Investigating antibiotics,antibiotic resistance genes,and microbial contaminants in groundwater in relation to the proximity of urban areas[J].Environmental Pollution,2018,236(11):734-744.
[2] Cao Y,Lei X Y,Chen Q L,et al.Enhanced photocatalytic degradation of tetracycline hydrochloride by novel porous hollow cube ZnFe2O4[J].Journal of Photochemistry & Photobiology A:Chemistry,2018,364:794-800.
[3] Yan Q S,Xu M M,Lin C P,et al.Efficient photocatalytic degradation of tetracycline hydrochloride by Ag3PO4 under visible-light irradiation[J].Environmental Science & Pollution Research,2016,23:14422-14430.
[4] Zhang Y,Zhou J B,Chen J H,et al.Rapid degradation of tetracycline hydrochloride by heterogeneous photocatalysis coupling persulfate oxidation with MIL-53(Fe) under visible light irradiation[J].Journal of Hazardous Materials,2020,392:122315.
[5] Shi Y H,Li J S,Wan D J,et al.Peroxymonosulfate-enhanced photocatalysis by carbonyl-modified g-C3N4 for effective degradation of the tetracycline hydrochloride[J].Science of the Total Environment,2020,749:142313.
[6] Guo Z Q,Yang F J,Yang R G,et al.Preparation of novel ZnO-NP@Zn-MOF-74 composites for simultaneous removal of copper and tetracycline from aqueous solution[J].Separation and Purification Technology,2021,274:118949.
[7] Zhang Y,Zhou J B,Cai W Q,et al.Enhanced photocatalytic performance and degradation pathway of rhodamine B over hierarchical double-shelled zinc nickel oxide hollow sphere heterojunction[J].Applied Surface Science,2018,430:549-560.
[8] Verma S,Younis S A,Kim K H,et al.Anisotropic ZnO nanostructures and their nanocomposites as an advanced platform for photocatalytic remediation[J].Journal of Hazardous Materials,2021,415:125615.
[9] Bhunia A K,Saha S.Characterization of zinc oxide nanocrystals with different morphology for application in ultraviolet-light photocatalytic performances on rhodamine B[J].Luminescence,2020,36(1):149-162.
[10] Lu X H,Zheng Y Z,Bi S Q,et al.Multidimensional ZnO architecture for dye-sensitized solar cells with high-efficiency up to 7.35%[J].Advanced Energy Materials,2014,4(9):1301802.
[11] Weng Y C,Hsiao K T.Composition optimization of ZnO-based photocatalyst arrays by scanning electrochemical microscopy and the characterization of efficient photocatalysts[J].International Journal of Hydrogen Energy,2015,40(8):3238-3248.
[12] Sharma S,Kumar K,Thakur N,et al.The effect of shape and size of ZnO nanoparticles on their antimicrobial and photocatalytic activities:a green approach[J].Bulletin of Materials Science,2020,43(1):20.
[13] Su Y M,Li J B,Luo Z Z,et al.Microstructure,growth process and enhanced photocatalytic activity of flower-like ZnO particles[J].RSC Advances,2016,6(9):7403-7408.
[14] Prasongsook P,Lachom V,Kenyota N,et al.Characterization and photocatalytic performance of hollow zinc oxide microspheres prepared via a template-free hydrothermal method[J].Materials Chemistry and Physics,2019,237:121836.
[15] Lei A H,Qu B H,Zhou W C,et al.Facile synthesis and enhanced photocatalytic activity of hierarchical porous ZnO microspheres[J].Materials Letters,2012,66(1):72-75.
[16] 唐兴兴,袁军,江学良,等.不同形貌ZnO的制备及其光催化性能研究[J].化工新型材料,2018,46(2):197-200.
[17] Zhou L J,Han Z X,Li G D,et al.Template-free synthesis and photocatalytic activity of hierarchical hollow ZnO microspheres composed of radially aligned nanorods[J].Journal of Physics and Chemistry of Solids,2021,148:109719.
[18] Shen X Y,Shao H M,Liu Y,et al.Synthesis and photocatalytic performance of ZnO with flower-like structure from zinc oxide ore[J].Journal of Materials Science & Technology,2020,51:1-7.
[19] 向小倩,廖小刚,李纲,等.分级微/纳结构ZnO的制备及其光催化性能[J].材料工程,2021,49(4):150-158.
[20] Miao Y,Zhang H J,Yuan S,et al.Preparation of flower-like ZnO architectures assembled with nanosheets for enhanced photocatalytic activity[J].Journal of Colloid and Interface Science,2016,462:9-18.
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