Photocatalytic Degradation of Methyl Orange on Platinum and Palladium Co-doped TiO2 Nanoparticles

被引：12

作者：

Zhang, Fengjun ^{[1
,2
]}

Xie, Fazhi ^{[1
]}

Fong, Tingyong ^{[2
]}

Zhang, Kan ^{[3
]}

Chen, Tao ^{[4
]}

Oh, Wonchun ^{[5
]}

机构：

[1] Anhui Univ Architecture, Anhui Key Lab Adv Bldg Mat, Hefei 230022, Anhui, Peoples R China

[2] Minist Educ, Engn Res Ctr Bldg Energy Efficient Control & Eval, Hefei, Peoples R China

[3] Pohang Univ Sci & Technol, Ctr Superfunct Mat, Dept Chem, Pohang, South Korea

[4] Anhui Acad Sci & Technol, Ctr Anal & Testing, Hefei, Anhui, Peoples R China

[5] Hanseo Univ, Dept Adv Mat Sci & Engn, Chungnam, South Korea

来源：

SYNTHESIS AND REACTIVITY IN INORGANIC METAL-ORGANIC AND NANO-METAL CHEMISTRY | 2012年 / 42卷 / 05期

关键词：

co-doped; platinum and palladium; photocatalytic activity; TiO2; visible light; SOLVENT-FREE OXIDATION; METHANOL; AU;

D O I：

10.1080/15533174.2011.615040

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Pt and Pd co-doped TiO2 nanoparticles were synthesized using modified sol-gel processes and characterized by BET surface area, SEM, TEM, XRD, EDX, FT-IR, and UV-Vis spectroscopy. The results showed that the Pt/Pd-TiO2 nanoparticles possess high surface area and small particles size compared with individual Pt or Pd doped TiO2. The significantly high photocatalytic activity can be ascribed to the simultaneous effects of doped Pt and Pd by cascadal electron transfer from TiO2 to Pd to Pt and reach surface excitation state. And the optimum molar ratio of Pt/Pd at 1.5 can effectively reduce the electron-hole recombination rate.

引用

页码：685 / 691

页数：7

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