采用硝酸锌为原料,分别以三乙醇胺、六次甲基四胺为沉淀剂,通过碱沉淀法制备了氧化锌光催化剂.以亚甲基蓝溶液脱色反应为模型,借助SEM、TEM、BET、XRD、TG、UV-Vis吸收光谱等表征手段,研究了热处理温度对氧化锌光催化剂催化活性和形貌的影响,并简要讨论了ZnO光催化亚甲基蓝的反应机理.结果表明,两种样品随着煅烧温度的升高,亚甲基蓝脱色率均先升高后降低,热处理温度为450℃时ZnO的光催化活性最强,亚甲基蓝脱色率达到86.7％;循环实验表明样品具有良好的稳定性和循环性.
参考文献
| [1] | 杨倩茹,梅乐夫,丁玉欣,钱剑锋,李敏.多孔碳负载纳米TiO2光催化性能研究[J].人工晶体学报,2013(04):683-687. |
| [2] | Eue Soon Jang;Jung-Hee Won;Seong-Ju Hwang;Jin-Ho Choy .Fine Tuning of the Face Orientation of ZnO Crystals to Optimize Their Photocatalytic Activity[J].Advanced Materials,2006(24):3309-3312. |
| [3] | B. Divband;M. Khatamian;G.R. Kazemi Eslamian;M. Darbandi .Synthesis of Ag/ZnO nanostructures by different methods and investigation of their photocatalytic efficiency for 4-nitrophenol degradation[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2013(Nov.1):80-86. |
| [4] | 蔡红,杜庆波,徐基贵,史洪伟,朱军.ZnO纳米棒的制备及其光催化活性研究[J].硅酸盐通报,2013(10):1989-1992. |
| [5] | Luyuan Zhang;Longwei Yin;Chengxiang Wang .Sol-Gel Growth of Hexagonal Faceted ZnO Prism Quantum Dots with Polar Surfaces for Enhanced Photocatalytic Activity[J].ACS applied materials & interfaces,2010(6):1769-1773. |
| [6] | Mclaren, A;Valdes-Solis, T;Li, GQ;Tsang, SC .Shape and Size Effects of ZnO Nanocrystals on Photocatalytic Activity[J].Journal of the American Chemical Society,2009(35):12540-12541. |
| [7] | Ye CH;Bando Y;Shen GZ;Golberg D .Thickness-dependent photocatalytic performance of ZnO nanoplatelets[J].The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical,2006(31):15146-15151. |
| [8] | Xiaobo Chen;Samuel S. Mao .Titanium Dioxide Nanomaterials: Synthesis, Properties, Modifications, and Applications[J].Chemical Reviews,2007(7):2891-2959. |
| [9] | ?uni?, V.;Vukomanovi?, M.;?kapin, S.D.;Suvorov, D.;Kova?, J. .Photocatalytic properties of TiO_2 and TiO_2/Pt: A sol-precipitation, sonochemical and hydrothermal approach[J].Ultrasonics sonochemistry,2014(1):367-375. |
| [10] | John Becker;Krishna Reddy Raghupathi;Jordan St. Pierre .Tuning of the Crystallite and Particle Sizes of ZnO Nanocrystalline Materials in Solvothermal Synthesis and Their Photocatalytic Activity for Dye Degradation[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2011(28):13844-13850. |
| [11] | 黄新友,邓悦欢,李晓毅,高春华,陈志刚.三种改性方法对纳米ZnO催化剂粉体的光催化性能的影响[J].人工晶体学报,2012(03):718-722. |
| [12] | Wang L;Chang LX;Zhao B;Yuan ZY;Shao GS;Zheng WJ .Systematic investigation on morphologies, forming mechanism, photocatalytic and photoluminescent properties of ZnO nanostructures constructed in ionic liquids[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,2008(5):1443-1452. |
| [13] | N. Daneshvar;D. Salari;A. R. Khataee .Photocatalytic degradation of azo dye acid red 14 in water on ZnO as an alternative catalyst to TiO_2[J].Journal of Photochemistry and Photobiology, A. Chemistry,2004(2/3):317-322. |
| [14] | Jing LQ.;Sun XJ.;Shang J.;Cai WM.;Xu ZL. .The surface properties and photocatalytic activities of ZnO ultrafine particles[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2001(3/4):308-314. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%