利用一种简单共沉淀的方法,通过调变合成温度(0~80 ℃)成功地合成了一系列Ag3VO4样品,其粒子尺寸在100 nm~5 μm间. 通过在合成体系中添加聚乙二醇4000, Ag3VO4粒子尺寸可进一步降低至50~100 nm. 可见光下降解罗丹明B的实验结果表明, Ag3VO4样品特别是纳米尺寸的样品,显示出比当前广泛使用的P25更高的催化活性. Ag3VO4样品循环使用4次之后其光催化活性并没有明显降低,证明Ag3VO4是一种稳定有效的可见光催化剂.
参考文献
[1] | Hoffmann M R;Martin S T;Choi W Y;Bahnemann D W .[J].Chemical Reviews,1995,95(01):69. |
[2] | Linsebigler A L;Lu G Q;Yates J T .[J].Chemical Reviews,1995,95(03):735. |
[3] | 肖义,党利琴,安丽珍,白士英,雷志斌.中孔石墨碳负载TiO2复合材料光催化降解罗丹明B和苯酚[J].催化学报,2008(01):31-36. |
[4] | Khan S U M;Al-Shahry M;Ingler W B .[J].Science,2002,297(5590):2243. |
[5] | Asahi R;Morikawa T;Ohwaki T;Aoki K Taga Y .[J].Science,2001,293(5528):269. |
[6] | Yu JC.;Yu JU.;Ho WK.;Jiang ZT.;Zhang LH. .Effects of F- doping on the photocatalytic activity and microstructures of nanocrystalline TiO2 powders[J].Chemistry of Materials,2002(9):3808-3816. |
[7] | Sato S;Nakamura R;Abe S .Visible-light sensitization of TiO2 photocatalysts by wet-method N doping[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2005(1/2):131-137. |
[8] | Hong X T;Wang Z P;Cai W M;Lu F Zhang J Yang Y Z Ma N Liu Y J .[J].Chemistry of Materials,2005,17(06):1548. |
[9] | Kudo A;Omori K;Kato H .[J].Journal of the American Chemical Society,1999,121(49):11459. |
[10] | Tokunaga S;Kato H;Kudo A .[J].CHEMISTRY OF MATERIALS,2001,13(12):4624. |
[11] | Kohtani S;Tomohiro M;Tokumura K;Nakagaki R .Photooxidation reactions of polycyclic aromatic hydrocarbons over pure and Ag-loaded BiVO4 photocatalysts[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2005(3/4):265-272. |
[12] | Tang J W;Zou Z G;Ye J H .[J].Catalysis Letters,2004,92(1-2):53. |
[13] | Zhang, C;Zhu, YF .Synthesis of square Bi2WO6 nanoplates as high-activity visible-light-driven photocatalysts[J].Chemistry of Materials,2005(13):3537-3545. |
[14] | Fu H B;Pan C S;Yao W Q;Zhu Y F .[J].Journal of Physical Chemistry B,2005,109(47):22432. |
[15] | Tang J W;Zou Z G;Ye J H .[J].Angewandte Chemie International Edition,2004,43(34):4463. |
[16] | Konta R.;Kato H.;Kobayashi H.;Kudo A. .Photophysical properties and photocatalytic activities under visible light irradiation of silver vanadates[J].Physical chemistry chemical physics: PCCP,2003(14):3061-3065. |
[17] | Hu X X;Hu C .[J].Journal of Solid State Chemistry,2007,180(02):725. |
[18] | Wu T X;Liu G M;Zhao J C;Hidaka H,Serpone N .[J].Journal of Physical Chemistry B,1998,102(30):5845. |
[19] | Zhao W;Chen C C;Li X Z;Zhao J C Hidaka H Serpone N .[J].Journal of Physical Chemistry B,2002,106(19):5022. |
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