采用不同钠源,在水热条件下实现了钙钛矿结构NaTaO3、烧绿石结构Na2Ta2O6以及NaTaO3/Na2Ta2O6异质结型复合光催化剂的可控合成,利用X射线衍射、扫描电镜、高分辨透射电镜、紫外-可见漫反射光谱、荧光光谱和X射线光电子能谱对样品进行了表征,探讨了钠源对所得钽酸钠样品结构的影响.光解水析氢实验结果表明,各钽酸盐的光催化活性顺序为NaTaO3/Na2Ta2O6> NaTaO3> Na2Ta2O6.NaTaO3与Na2Ta2O6间形成的纳米尺度异质结有效抑制了光生电子和空穴的复合,这是其具有最高光解水析氢活性的主要原因.
参考文献
[1] | Fujishima A;Honda K .[J].Nature,1972,238:37. |
[2] | Kato H.;Kudo A. .New tantalate photocatalysts for water decomposition into H-2 and O-2[J].Chemical Physics Letters,1998(5-6):487-492. |
[3] | Kato H.;Kudo A. .Highly efficient decomposition of pure water into H-2 and O-2 over NaTaO3 photocatalysts[J].Catalysis Letters,1999(2/3):153-155. |
[4] | Otsuka H;Kim K Y;Kouzu A;Takimoto I Fujimori H Sakata Y Imamura H Matsumoto T Toda K .[J].Chemistry Letters,2005,34:822. |
[5] | Xu T G;Zhao X;Zhu Y F .[J].Journal of Physical Chemistry B,2006,110:25825. |
[6] | Porob D G;Maggard PA .[J].Journal of Solid State Chemistry,2006,179:1727. |
[7] | Li D F;Zheng J;Li Z S;Fan X X,Liu L F,Zou Z G.[J].International Journal of Photoenergy,2007:21860/1. |
[8] | Ratnamala A;Suresh G;Kumari V D;Subrahmanyam M .[J].Materials Chemistry and Physics,2008,110:176. |
[9] | 方亮,张辉,鄢俊兵,杨卫明.新钽酸盐Ba2LnTi2Ta3O15(Ln=Y、La)的结构与介电性能[J].物理化学学报,2003(01):82-84. |
[10] | Li, YX;Chen, G;Zhang, HJ;Li, ZH;Sun, JX .Electronic structure and photocatalytic properties of ABi(2)Ta(2)O(9) (A = Ca, Sr, Ba)[J].Journal of Solid State Chemistry,2008(10):2653-2659. |
[11] | Zhou C;Chen G;Li Y X;Zhang H J Pei J .[J].International Journal of Hydrogen Energy,2009,34:2113. |
[12] | Miseki Y;Kato H;Kudo A .[J].Energy Environmental Science,2009,2:306. |
[13] | Hu C-C;Tsai C-C;Teng H .[J].Journal of the American Ceramic Society,2009,92:460. |
[14] | Li Z H;Wang Y X;Liu J W;Chen G Li Y X Zhou C .[J].International Journal of Hydrogen Energy,2009,34:147. |
[15] | Tian MK;Shangguan WF;Yuan J;Jiang L;Chen MX;Shi JW;Ouyang ZY;Wang SJ .K4Ce2M10O30 (M = Ta, Nb) as visible light-driven photocatalysts for hydrogen evolution from water decomposition[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2006(1):76-84. |
[16] | 孙超,黄浪欢,刘应亮.Na2Ta2O6光催化剂的制备与性能研究[J].高等学校化学学报,2006(09):1749-1751. |
[17] | Ishihara T;Baik NS;Ono N;Nishiguchi H;Takita Y .Effects of crystal structure on photolysis of H2O on K-Ta mixed oxide[J].Journal of Photochemistry and Photobiology, A. Chemistry,2004(2/3):149-157. |
[18] | 张晓艳,崔晓莉.C-N共掺杂纳米TiO_2的制备及其光催化制氢活性[J].物理化学学报,2009(09):1829-1834. |
[19] | Lee, YG;Watanabe, T;Takata, T;Kondo, JN;Hara, M;Yoshimura, M;Domen, K .Preparation and characterization of sodium tantalate thin films by hydrothermal-electrochemical synthesis[J].Chemistry of Materials,2005(9):2422-2426. |
[20] | Goh G K L;Levi C G;Lange F F .[J].Journal of Materials Research,2002,17:2852. |
[21] | Murphy C J;Jana N R .[J].Advanced Materials,2002,14:80. |
[22] | Liu J W;Chen G;Li Z H;Zhang Z G .[J].International Journal of Hydrogen Energy,2007,32:2269. |
[23] | Yu Y;Yu J C;Chan C Y;Che Y K Zhao J C Ding L Ge W K Wong P K .[J].Applied Catalysis B:Environmental,2005,61:1. |
[24] | Yao Y;Li G H;Ciston S;Lueptow R M Gray K A .[J].Environmental Science and Technology,2008,42:4952. |
[25] | Yen C-Y;Lin Y-F;Hung C-H;Tseng Y-H Ma C-C M Chang M-C Shao H .[J].Nanotechnology,2008,19:045604. |
[26] | Yu Y;Yu J C;Yu J G;Kwok Y-C Che Y-K Zhao J C Ding L Ge W K Wong P-K .[J].Applied Catalysis A:General,2005,289:186. |
[27] | 郑华荣,崔言娟,张金水,丁正新,王心晨.Pt助剂对N掺杂TiO2可见光光催化性能的影响[J].催化学报,2011(01):100-105. |
[28] | Yu J G;Hai Y;Jaroniec M .[J].Journal of Colloid and Interface Science,2011,357:223. |
[29] | Ren C L;Yang B F;Wu M;Xu J FuZ P Lü Y Guo T Zhao Y X Zhu C Q .[J].Journal of Hazardous Materials B:Environmental Technologies,2010,182:123. |
[30] | Scaife D E .[J].Journal of Solar Energy Engineering,1980,25:41. |
[31] | Arai T;Yanagida M;Konishi Y;Iwasaki Y Sugihara H Sayama K .[J].Journal of Physical Chemistry C,2007,111:7574. |
[32] | 陈晓波.二氧化钛纳米材料及其能源应用[J].催化学报,2009(08):839-851. |
[33] | 刘兴平,蒋荣英,柳松.TiO2/Mo-TiO2的制备、表征和光催化活性[J].催化学报,2010(11):1381-1387. |
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%