采用水热法合成了花球状的Bi2WO6和介孔碳CMK-3/Bi2 WO6的光催化剂,然后通过光还原得到了Ag负载的Ag/Bi2 WO6和Ag-CMK-3/Bi2 WO6,制备出可见光下具有高活性的光催化剂.利用紫外-可见漫反射光谱(UV-Vis DRS)、X射线衍射(XRD)、透射电子显微镜(TEM)、高分辨透射电子显微镜(HRoTEM)和扫描电子显微镜(SEM)对制备的样品进行表征,评价样品在可见光照射下降解亚甲基蓝(MB)的光催化活性.并研究了CMK-3和Ag负载在Bi2WO6上都能提高其光催化活性的机制.结果表明:CMK-3或Ag负载在Bi2WO6上都能大幅提高Bi2 WO6的光催化活性,Ag-CMK-3/Bi2WO6光催化剂的光催化性能优于Ag/Bi2WO6和CMK-3/Bi2WO6光催化剂.
参考文献
| [1] | Lisha Zhang;Wenzhong Wang;Zhigang Chen.Fabrication of flower-like Bi2WO6 superstructures as high performance visible-light driven photocatalysts[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,200724(24):2526-2532. |
| [2] | Meng Shang;Wenzhong Wang;Songmei Sun.Bi2WO6 Nanocrystals with High Photocatalytic Activities under Visible Light[J].The journal of physical chemistry, C. Nanomaterials and interfaces,200828(28):10407-10411. |
| [3] | S. Obregon Alfaro;A. Martinez-de la Cruz.Synthesis, characterization and visible-light photocatalytic properties of Bi2WO6 and Bi2W2O9 obtained by co-precipitation method[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,20101/2(1/2):128-133. |
| [4] | Danjun Wang;Ganglin Xue;Yanzhong Zhen.Monodispersed Ag nanoparticles loaded on the surface of spherical Bi2WO6 nanoarchitectures with enhanced photocatalytic activities[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,201211(11):4751-4758. |
| [5] | Jia Ren;Wenzhong Wang;Songmei Sun.Enhanced photocatalytic activity of Bi2WO6 loaded with Ag nanoparticles under visible light irradiation[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,20091/2(1/2):50-55. |
| [6] | Zhijie Zhang;Wenzhong Wang;Erping Gao.Photocatalysis Coupled with Thermal Effect Induced by SPR on Ag-Loaded Bi2WO6 with Enhanced Photocatalytic Activity[J].The journal of physical chemistry, C. Nanomaterials and interfaces,201249(49):25898-25903. |
| [7] | Jiang Zhang;Zheng-Hong Huang;Yong Xu.Hydrothermal Synthesis of Graphene/Bi_2WO_6 Composite with High Adsorptivity and Photoactivity for Azo Dyes[J].Journal of the American Ceramic Society,20135(5):1562-1569. |
| [8] | Li, YY;Liu, JP;Huang, XT;Yu, JG.Carbon-modified Bi2WO6 nanostructures with improved photocatalytic activity under visible light[J].Dalton transactions: An international journal of inorganic chemistry,201014(14):3420-3425. |
| [9] | Su-Hua Chen;Zhen Yin;Sheng-Lian Luo;Xue-Jun Li;Li-Xia Yang;Fang Deng.Photoreactive mesoporous carbon/Bi_2WO_6 composites: Synthesis and reactivity[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2012:7-12. |
| [10] | Jingxiang Low;Jiaguo Yu;Qin Li.Enhanced visible-light photocatalytic activity of plasmonic Ag and graphene co-modified Bi2WO6 nanosheets[J].Physical chemistry chemical physics: PCCP,20143(3):1111-1120. |
| [11] | W. L. Ong;M. Gao;G. W. Ho.Hybrid organic PVDF-inorganic M-rGO-TiO2 (M = Ag, Pt) nanocomposites for multifunctional volatile organic compound sensing and photocatalytic degradation-H2 production[J].Nanoscale,201322(22):11283-11290. |
| [12] | Hem Raj Pant;Bishweshwar Pant;Han Joo Kim.A green and facile one-pot synthesis of Ag-ZnO/RGO nanocomposite with effective photocatalytic activity for removal of organic pollutants[J].CERAMICS INTERNATIONAL,20135(5):5083-5091. |
| [13] | Zhao DY.;Feng JL.;Chmelka BF.;Stucky GD.;Huo QS..Nonionic triblock and star diblock copolymer and oligomeric surfactant syntheses of highly ordered, hydrothermally stable, mesoporous silica structures[J].Journal of the American Chemical Society,199824(24):6024-6036. |
| [14] | Jun S.;Ryoo R.;Kruk M.;Jaroniec M.;Liu Z.;Ohsuna T. Terasaki O.;Joo SH..Synthesis of new, nanoporous carbon with hexagonally ordered mesostructure[J].Journal of the American Chemical Society,200043(43):10712-10713. |
| [15] | Yu JG;Xiong JF;Cheng B;Yu Y;Wang JB.Hydrothermal preparation and visible-light photocatalytic activity of Bi2WO6 powders[J].International Journal of Quantum Chemistry,20056(6):1968-1972. |
| [16] | Jiaguo Yu;Tingting Ma;Shengwei Liu.Enhanced photocatalytic activity of mesoporous TiO2 aggregates by embedding carbon nanotubes as electron-transfer channel[J].Physical chemistry chemical physics: PCCP,20118(8):3491-3501. |
| [17] | Weiwei Lu;Shuyan Gao;Jianji Wang.One-Pot Synthesis of Ag/ZnO Self-Assembled 3D Hollow Microspheres with Enhanced Photocatalytic Performance[J].The journal of physical chemistry, C. Nanomaterials and interfaces,200843(43):16792-16800. |
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