SnO-decorated TiO2 nanoparticle with enhanced photocatalytic performance for methylene blue degradation

被引：14

作者：

Lee, Jae Kwon ^{[1
]}

Kim, Yoon-Kee ^{[1
]}

Choi, Byung Joon ^{[2
]}

Chung, Taek-Mo ^{[3
,4
]}

Han, Jeong Hwan ^{[2
,4
]}

机构：

[1] Hanbat Natl Univ, Dept Mat Sci & Engn, Deajeon 34014, South Korea

[2] Seoul Natl Univ Sci & Technol, Dept Mat Sci & Engn, Seoul 01811, South Korea

[3] Korea Res Inst Chem Technol, Div Adv Mat, 141 Gajeong Ro, Daejeon 34114, South Korea

[4] Univ Sci & Technol, Dept Chem Convergence Mat, 217 Gajeong Ro, Deajeon 34113, South Korea

来源：

APPLIED SURFACE SCIENCE | 2019年 / 480卷

关键词：

Photocatalyst; Powder atomic layer deposition (P-ALD); SnO; TiO2; Methylene blue (MB) degradation; LAYER;

D O I：

10.1016/j.apsusc.2019.02.175

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

P-type tin monoxide (SnO) decorated TiO2 nanoparticles have been synthesized by the powder atomic layer deposition (p-ALD) method in a fluidized bed reactor at 150-250 degrees C. Successful deposition of SnO on a TiO2 surface was realized using a precursor combination of Sn(dmamp)(2) and H2O as Sn source and reactant, respectively. Prepared SnO/TiO2 nanoparticles were characterized by XRF, XPS, XRD, and TEM-EDS. Formation of a p-SnO/n-TiO2 heterojunction resulted in improved photocatalytic methylene blue degradation performance compared to using a TiO2 photocatalyst, which might be attributed to facile separation of photo- induced electron-hole pairs as well as to increased UV/visible light absorption by adopting a narrow bandgap SnO.

引用

页码：1089 / 1092

页数：4

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