光催化在环境保护和污染治理中有用途广泛。二硫化锡纳米材料具有优异的可见光催化性能, 可用于染料废水的降解处理。采用易于操作的一步水热法制备了纳米二硫化锡(SnS2-H), 利用XRD、Raman、SEM、UV-Vis DRS和N2吸附脱附曲线对产物的晶体结构、形貌、带隙和表面积进行了表征。分别以罗丹明B(Rh B)、甲基橙(MO)和亚甲基蓝(MB)溶液模拟染料废水, 考察SnS2-H的可见光催化性能。结果表明, SnS2-H用量为20mg时, 对以上三种染料都具有良好催化降解效果, 其中MO的最大降解率达到42%, 三次循环使用, 仍保持良好的稳定性和催化活性。
Photocatalysis has a wide range of applications in environmental protection and pollution control.Tin disulfide nanomaterials have excellent visible light catalytic performance and can be used for the degradation of dye wastewater.Tin disulfide nanomaterials (SnS2-H) were prepared by one-step hydrothermal method.The crystal structure, morphology, bandgap and surface area of SnS2-H were characterized by X-ray diffraction (XRD), Raman spectroscopy (Raman), scanning electron microscopy (SEM), UV-visible diffuse reflectance spectrum (UV-Vis DRS) and N2 adsorption and desorption curve.The photocatalytic performance of SnS2-H was investigated by using Rhodamine B (Rh B), Methyl orange (MO) and Methylene blue (MB) solutions to simulate dye wastewater.The results showed that 20 mg SnS2-H had favorable catalytic degradation effect on all the above three dyes, and the maximum degradation rate of MO reached 42%.It still maintained good stability and catalytic activity after three cycles of use.
[1] 赵超,黄应平.可见光异相photo-Fenton体系降解有机染料橙Ⅱ[J].环境工程学报,2007,1(6):19-24.
[2] 邹启超,马岩,池殿军,等.准MIL-53(Fe)光催化剂的合成及其可见光催化降解有机染料性能的提高[J].无机化学学报,2021,37(12):2289-2297.
[3] 钟己未,万益群,付敏恭,等.纳米氧化锌光催化降解有机染料性能的研究[J].分析试验室,2006,25(12):30-34.
[4] 孙洋洋,杨茜怡,吕春芳.磁性氧化石墨烯/TiO2复合材料的制备及光催化降解染料废水的研究[J].应用化工,2014(10):1771-1774.
[5] Reddy D A,Kim E H,Gopannagari M,et al.Few layered black phosphorus/MoS2 nanohybrid:a promising co-catalyst for solar driven hydrogen evolution[J].Appl Catal B,2019,241:491-498.
[6] Qin L,Li X,He Q,et al.Gram-scale aqueous synthesis of stable few-layered 1T-MoS2:applications for visible-light-driven photocatalytic hydrogen evolution[J].Small,2015,11(47):5556-5564.
[7] Hoffmann M R,Martin S T,Choi W,et al.Environmental applications of semiconductor photocatalysis[J].Chemical Reviews,1995,95(1):69-96.
[8] Ren Y,Wang J,Huang X,et al.Three-dimensional SnS2 flowers/carbon nanotubes network:extraordinary rate capacity for sodium-ion battery[J].Materials Letters,2017,186(1):57-61.
[9] Akhavan O.Photocatalytic reduction of graphene oxides hybridized by ZnO nanoparticles in ethanol[J].Carbon,2011,49(1):11-18.
[10] Zhang Y C,Li J,Xu H Y.One-step in situ solvothermal synthesis of SnS2/TiO2 nanocomposites with high performance in visible light-driven photocatalytic reduction of aqueous Cr(Ⅵ)[J].Applied Catalysis B Environmental,2012,(123-124):18-26.
[11] Sudrajat H,Babel S.Rapid photocatalytic degradation of the recalcitrant dye amaranth by highly active N-WO3[J].Environ Chem Lett,2016,14:243-249.
[12] 丁世环,徐聪聪,鹿媛铮.SnS2/BiOBr复合光催化剂的制备及其光催化性能研究[J].化工新型材料,2018,46(9):205-208.
[13] Zhang F,Zhang Y,Zhang G,et al.Exceptional synergistic enhancement of the photocatalytic activity of SnS2 by coupling with polyaniline and N-doped reduced graphene oxide[J].Appl Catal B,2018,236:53-63.
[14] Kim Y H,Phan D T,Ahn S,et al.Two-dimensional SnS2 materials as high-performance NO2 sensors with fast response and high sensitivity[J].Sensors & Actuators B Chemical,2018,255:616-621.
[15] 陈小卫,陈虎,张铭烨,等.SnS2光催化材料研究进展[J].化工新型材料,2020,48(1):35-40.
[16] Seo J W,Jang J T,Park S W,et al.Two-dimensional SnS2 nanoplates with extraordinary high discharge capacity for lithium ion batteries[J].Advanced Materials,2010,20(22):4269-4273.
[17] Lei Y Q,Song S Y,Fan W Q,et al.Facile synthesis and assemblies of flowerlike SnS2 and In3+-doped SnS2:hierarchical structures and their enhanced photocatalytic property[J].Journal of Physical Chemistry C,2009,113(4):1280-1285.
[18] Wang J,Yu F,Guo Z,et al.Three-dimensional flower-like SnS2-supported bimetallic zeolite imidazole compound with enhanced electrocatalytic activity for methanol oxidation[J].Frontiers of Materials Science,2021,15(1):10-15.
[19] Giberti A,Gaiardo A,Fabbri B,et al.Tin(Ⅳ) sulfide nanorods as a new gas sensing material[J].Sensors and Actuators B:Chemical,2016,223:827-833.
[20] 戴高鹏,李冰冰,刘素芹,等.还原氧化石墨烯/SnS2纳米复合物的制备与可见光光催化性能[J].化工新型材料,2016,44(2):70-72.
[21] Zhang Y C,Li J,Zhang M,et al.Size-tunable hydrothermal synthesis of SnS2 nanocrystals with high performance in visible light-driven photocatalytic reduction of aqueous Cr(Ⅵ)[J].Environ Sci Technol,2011,45:9324-9331.
[22] Zhang Y C,Du Z N,Li K W,et al.Size-controlled hydrothermal synthesis of SnS2 nanoparticles with high performance in visible light-driven photocatalytic degradation of aqueous methyl orange[J].Separation and Purification Technology,2011,81(1):101-107.
[23] Zhang Y C,Yao L,Zhang G,et al.One-step hydrothermal synthesis of high-performance visible-light-driven SnS2/SnO2 nanoheterojunction photocatalyst for the reduction of aqueous Cr(Ⅵ)[J].Applied Catalysis B Environmental,2014,144:730-738.
[24] Wei H,Hou C,Zhang Y,et al.Scalable low temperature in air solid phase synthesis of porous flower-like hierarchical nanostructure SnS2 with superior performance in the adsorption and photocatalytic reduction of aqueous Cr(Ⅵ)[J].Separation and Purification Technology,2017,189:153-161.
[25] Yong C Z,Zhen N D,Shi Y L,et al.Novel synthesis and high visible light photocatalytic activity of SnS2 nanoflakes from SnCl2·2H2O and S powders[J].Applied Catalysis B Environmental,2010,95(1-2):153-159.
[26] Vaiano V,Sacco O,Pisano D,et al.From the design to the development of a continuous fixed bed photoreactor for photocatalytic degradation of organic pollutants in wastewater[J].Chemical Engineering Science,2015,137:152-160.
基金资助
国家自然科学青年基金项目(22108320);河南科技厅自然科学基础研究项目(212102310376)
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