表面活性剂辅助法制备纳米ZnO及光催化性能研究
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摘要
以Zn(NO_3)_2·6H_2O、氨水和不同的表面活性剂为原料,采用沉淀法制备了具有不同微观形貌和尺寸的纳米ZnO,研究表面活性剂对纳米ZnO光催化降解甲基橙性能的影响。通过X射线衍射仪(XRD)、扫描电镜(SEM)和紫外可见分光光度计(UV-Vis)等对所制备纳米ZnO的物相、形貌及光吸收性能进行表征,并对其进行光催化性能测试。结果表明,以CTAB为表面活性剂所制备的纳米ZnO,粒径均匀、分散性良好、无明显团聚现象,并且对甲基橙的光催化降解性能最好,在2 h内降解率可达90.6%。
Nano ZnO with different morphologies and sizes were synthesized by precipitation method with Zn(NO_3)2·6 H_2O,ammonia water and different surfactants as raw materials. The effect of surfactants on the photocatalytic degradation of methyl orange by nano ZnO was studied. The crystalline phase,morphology,and optical absorption properties of the as-prepared nano ZnO were characterized by X-ray diffraction(XRD), scanning electron microscope(SEM), and UV-Vis spectroscopy etc. The photocatalytic capability of nano ZnO was tested using methyl orange being a degradation material.Results show that nano ZnO prepared by CTAB has uniformed paticle size,good dispersibility and less agglomeration,and exhibited the best photocatalytic degradation property that the degradation percentages is up to 90. 6% within 2 h.
Nano ZnO with different morphologies and sizes were synthesized by precipitation method with Zn(NO_3)2·6 H_2O,ammonia water and different surfactants as raw materials. The effect of surfactants on the photocatalytic degradation of methyl orange by nano ZnO was studied. The crystalline phase,morphology,and optical absorption properties of the as-prepared nano ZnO were characterized by X-ray diffraction(XRD), scanning electron microscope(SEM), and UV-Vis spectroscopy etc. The photocatalytic capability of nano ZnO was tested using methyl orange being a degradation material.Results show that nano ZnO prepared by CTAB has uniformed paticle size,good dispersibility and less agglomeration,and exhibited the best photocatalytic degradation property that the degradation percentages is up to 90. 6% within 2 h.
引文
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[22]郭志峰,田硕,王凌勇,等.直接沉淀法制备纳米氧化锌晶体及其光催化降解性能研究[J].硅酸盐通报,2010,29(2):329-333.
[23]Guo L,Ji Y L,Xu H,et al.Regularly Shaped,Single-Crystalline Zn O Nanorods with Wurtzite Structure[J].Journal of the American Chemical Society,2002,124(50):14864-14865.
[24]卢燕,钟俊波,李建章,等.CTAB辅助制备Zn O及其光催化脱色性能研究[J].化学研究与应用,2013,25(6):866-870.
[2]徐晓虹,陈霞,吴建锋,等.稀土掺杂对Zn O材料结构及光催化性能的影响研究[J].硅酸盐通报,2016,35(10):3096-3100+3105.
[3]王俊.水热法制备纳米氧化锌及其光催化性质的研究[D].曲阜:曲阜师范大学,2013.
[4]Lei A,Qu B,Zhou W,et al.Facile Synthesis and Enhanced Photocatalytic Activity of Hierarchical Porous Zn O Microspheres[J].Materials Letters,2012,66(1):72-75.
[5]Wang J,Gao L.Synthesis and Characterization of Zn O Nanoparticles Assembled in One-dimensional Order[J].Inorganic Chemistry Communications,2003,6(7):877-881.
[6]Huang J,Wu Y,Gu C,et al.Large-scale Synthesis of Flower-like Zn O Nanostructure by a Simple Chemical Solution Route and Its Gas-sensing Property[J].Sensors and Actuators B:Chemical,2010,146(1):206-212.
[7]Li J,Fan H,Jia X.Multilayered Zn O Nanosheets with 3D Porous Architectures:Synthesis and Gas Sensing Application[J].The Journal of Physical Chemistry C,2010,114(35):14684-14691.
[8]Ding S J,Luan D Y,Boey F Y C,et al.Sn O2Nanosheets Grown on Graphene Sheets with Enhanced Lithium Storage Properties[J].Chemical Communications,2011,47(25):7155-7157.
[9]Pudukudy M,Yaakob Z,Narayanan B,et al.Facile Synthesis of Bimodal Mesoporous Spinel Co3O4Nanomaterials and Their Structural Properties[J].Superlattices and Microstructures,2013,64:15-26.
[10]Sun X W,Huang J Z,Wang J X,et al.A Zn O Nanorod Inorganic/Organic Heterostructure Light-emitting Diode Emitting at 342 nm[J].Nano letters,2008,8(4):1219-1223.
[11]Sarkar D,Tikku S,Thapar V,et al.Formation of Zinc Oxide Nanoparticles of Different Shapes in Water-in-oil Microemulsion[J].Colloids and SurfacesA:PhysicochemicalandEngineeringAspects,2011,381(1-3):123-129.
[12]Nahm C W,Park C H.Microstructure,Electrical Properties,and Degradation Behavior of Praseodymium Oxides-based Zinc Oxide Varistors Doped with Y2O3[J].Journal of Materials Science,2000,35(12):3037-3042.
[13]孟庆明,王鉴,彭艳玲,等.沉淀方法对Zn O结构及光催化性能的影响[J].硅酸盐通报,2015,34(5):1365-1370.
[14]张丽惠,李勇.多孔雪花状氧化锌分级纳米结构的制备、表征及其光催化性能研究[J].化学研究与应用,2015,27(3):329-334.
[15]Kim S J,Park D W.Preparation of Zn O Nanopowders by Thermal Plasma and Characterization of Photo-catalytic Property[J].Applied Surface Science,2009,255(10):5363-5367.
[16]陈春燕,南海,李昆,等.可控形貌纳米氧化锌的制备及光学性能研究[J].人工晶体学报,2014,43(2):404-408.
[17]夏昌奎,黄剑锋,曹丽云,等.微波水热法制备Zn O纳米晶[J].人工晶体学报,2008,37(4):833-838.
[18]Farbod M,Jafarpoor E.Hydrothermal Synthesis of Different Colors and Morphologies of Zn O Nanostructures and Comparison of Their Photocatalytic Properties[J].Ceramics International,2014,40(5):6605-6610.
[19]杨凯,余长林,张丽娜,等.Bi OCl/Zn O异质结型复合光催化剂的水热合成及其光催化性能[J].人工晶体学报,2012,41(1):171-176.
[20]李林刚,唐渝.表面活性剂在纳米材料形貌控制中的应用[J].现代化工,2005,(1):286-289.
[21]杜庆波,蔡红,朱军,等.水热法制备花簇形氧化锌纳米棒结构及其光催化性能[J].硅酸盐通报,2016,35(5):1617-1621.
[22]郭志峰,田硕,王凌勇,等.直接沉淀法制备纳米氧化锌晶体及其光催化降解性能研究[J].硅酸盐通报,2010,29(2):329-333.
[23]Guo L,Ji Y L,Xu H,et al.Regularly Shaped,Single-Crystalline Zn O Nanorods with Wurtzite Structure[J].Journal of the American Chemical Society,2002,124(50):14864-14865.
[24]卢燕,钟俊波,李建章,等.CTAB辅助制备Zn O及其光催化脱色性能研究[J].化学研究与应用,2013,25(6):866-870.