采用层层(LbL)自组装技术制备了含TiO2的复合膜.原子力显微镜(AFM)表征发现TiO2纳米粒子和磷钨酸聚阴离子被成功的组装到了复合膜中;以甲基橙染料废水的降解反应为模型,研究了纳米复合膜催化剂的光催化效率,发现(TiO2/PW12)n复合膜的光催化效率明显低于(PSS/TiO2)10,说明在pH值为6.4的近中性条件下,TiO2和PW12间没有表现出协同效应;同时考察了甲基橙初始浓度和复合膜中聚电解质层的影响.通过LbL技术把催化剂固载在玻璃片上解决了催化剂的回收问题,而且多层膜被重复使用四次后仍能保持较高的催化活性.
参考文献
| [1] | 许凤秀,冯光建,刘素文,修志亮,俞娇仙.TiO2降解有机染料废水的研究进展[J].硅酸盐通报,2008(05):991-995. |
| [2] | Fang Han;Venkata Subba Rao Kambala;Madapusi Srinivasan .Tailored titanium dioxide photocatalysts for the degradation of organic dyes in wastewater treatment: A review[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2009(1/2):25-40. |
| [3] | 鲁飞,孟凡明.TiO2光催化剂掺杂改性研究进展[J].硅酸盐通报,2011(01):116-119,124. |
| [4] | 游洋,张世英,万隆,许第发,李云龙,黎成勇.TiO2纤维的制备及其应用研究进展[J].硅酸盐通报,2010(04):882-887,897. |
| [5] | Minjoong Yoon;Jeong Ah Chang;Yanghee Kim;Jun Rye Choi;Kwan Kim;Seung Joon Lee .Heteropoly Acid-Incorporated TiO_2 Colloids as Novel Photocatalytic Systems Resembling the Photosynthetic Reaction Center[J].The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical,2001(13):2539-2545. |
| [6] | Ozer R;Ferry J .Investigation of the photocatalytic activity of TiO2-polyoxometalate systems[J].Environmental Science and Technology,2001,35:3242-3246. |
| [7] | 李莉,郭伊荇,周萍,于小丹,康万利.孔道结构H3PW12O40/TiO2的制备及其可见光光催化降解水溶性染料的性能[J].催化学报,2005(03):209-215. |
| [8] | Li Li;Qing-yin Wu;Yi-hang Guo;Chang-wen Hu .Nanosize and bimodal porous polyoxotungstate-anatase TiO_2 composites:Preparation and photocatalytic degradation of organophosphorus pesticide using visible-light excitation[J].Microporous and Mesoporous Materials,2005(1):1-9. |
| [9] | Hongxiao Jin;Qingyin Wu;Wenqin Pang .Photocatalytic degradation of textile dye X-3B using polyoxometalate-TiO_2 hybrid materials[J].Journal of hazardous materials,2007(1):123-127. |
| [10] | D. Neela Priya;Jayant M. Modak;Ashok M. Raichur .LbL Fabricated Poly(Styrene Sulfonate)/TiO2 Multilayer Thin Films for Environmental Applications[J].ACS applied materials & interfaces,2009(11):2684-2693. |
| [11] | Yanagida S;Nakajima A;Sasaki T et al.Processing and photocatalytic properties of transparent 12-tungsto (Ⅵ) phosphoric acid-TiO2 hybrid films[J].Chemistry of Materials,2008,20:3757-3764. |
| [12] | Zhixia Sun;Lin Xu;Weihua Guo .Enhanced Photoelectrochemical Performance of Nanocomposite Film Fabricated by Self-Assembly of Titanium Dioxide and Polyoxometalates[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2010(11):5211-5216. |
| [13] | Niu, P.;Hao, J. .Fabrication of titanium dioxide and tungstophosphate nanocomposite films and their photocatalytic degradation for methyl orange[J].Langmuir: The ACS Journal of Surfaces and Colloids,2011(22):13590-13597. |
| [14] | Dmitry G. Shchukin;Jan H. Schattka;Markus Antonietti;Rachel A. Caruso .Photocatalytic Properties of Porous Metal Oxide Networks Formed by Nanoparticle Infiltration in a Polymer Gel Template[J].The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical,2003(4):952-957. |
| [15] | Fan D W;Hao J C .Fabrication and electrocatalytic properties of chitosan and Keplerate-type polyoxometalate[Mo72Fe30]hybrid films[J].The Journal of Physical Chemistry(B)Materials Surfaces Interfaces & Physical,2009,113:7513-7516. |
| [16] | 吴艳凤,刘燕,许效红.脱合金法制备Ti-Bi基光催化剂[J].硅酸盐通报,2011(02):447-450. |
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%