Plasmonic and non-plasmonic contributions on photocatalytic activity of Au-TiO2 thin film under mixed UV-visible light

被引：23

作者：

Veziroglu, Salih ^{[1
]}

Ullrich, Marie ^{[1
]}

Hussain, Majid ^{[1
]}

Drewes, Jonas ^{[1
]}

Shondo, Josiah ^{[1
]}

Strunskus, Thomas ^{[1
]}

Adam, Jost ^{[2
]}

Faupel, Franz ^{[1
]}

Aktas, Oral Cenk ^{[1
]}

机构：

[1] Univ Kiel, Fac Engn, Inst Mat Sci, Chair Multicomponent Mat, Kaiserstr 2, D-24143 Kiel, Germany

[2] Univ Southern Denmark, Mads Clausen Inst, NanoSYD, Alsion 2, DK-6400 Sonderborg, Denmark

来源：

SURFACE & COATINGS TECHNOLOGY | 2020年 / 389卷

关键词：

Photocatalyst; TiO2; Au; Nanoparticles; Plasmonic; Photodeposition; GOLD NANOPARTICLES; TIO2; HYDROGEN; SOLAR; WATER; NANOSTRUCTURES; RESONANCE; OXIDATION; TITANIA; TRANSFORMATION;

D O I：

10.1016/j.surfcoat.2020.125613

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A highly photocatalytic Au-TiO2 hybrid thin film was prepared by the photocatalytic deposition of Au nanoparticles (NPs) on reactive sputtered TiO2 thin film. By altering the ratio of the visible (Vis) and ultra-violet (UV) light (Vis/UV), we investigated plasmonic and non-plasmonic contributions of Au NPs to the overall photocatalytic activity. While, a gradual increase of Vis/UV (<= 0.24/1) led to a steady enhancement of the photocatalytic performance of Au-TiO2 hybrid structures, further increase in Vis/UV (>= 0.30/1) did not foster the enhancement further. At high Vis/UV, plasmon excited electrons seem to start promoting electron-hole recombination in TiO2, which significantly reduces the photocatalytic performance.

引用

页数：7

共 52 条

[1] Wafer-scale two-dimensional Au-TiO2 bilayer films for photocatalytic degradation of Palmitic acid under UV and visible light illumination [J].

Akbari, Mohammad Karbalaei ;

Hai, Zhenyin ;

Wei, Zihan ;

Hu, Jie ;

Zhuiykov, Serge .

MATERIALS RESEARCH BULLETIN, 2017, 95 :380-391

[2] Oxidation of CO on gold supported catalysts prepared by laser vaporization: Direct evidence of support contribution [J].

Arrii, S ;

Morfin, F ;

Renouprez, AJ ;

Rousset, JL .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (04) :1199-1205

[3] A plasmonic photocatalyst consisting of sliver nanoparticles embedded in titanium dioxide [J].

Awazu, Koichi ;

Fujimaki, Makoto ;

Rockstuhl, Carsten ;

Tominaga, Junji ;

Murakami, Hirotaka ;

Ohki, Yoshimichi ;

Yoshida, Naoya ;

Watanabe, Toshiya .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (05) :1676-1680

[4] A review on catalytic applications of Au/TiO2 nanoparticles in the removal of water pollutant [J].

Ayati, Ali ;

Ahmadpour, Ali ;

Bamoharram, Fatemeh F. ;

Tanhaei, Bahareh ;

Manttari, Mika ;

Sillanpaa, Mika .

CHEMOSPHERE, 2014, 107 :163-174

[5] Understanding the superior photocatalytic activity of noble metals modified titania under UV and visible light irradiation [J].

Bumajdad, Ali ;

Madkour, Metwally .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2014, 16 (16) :7146-7158

[6] Synergistic Effect of Double-Shelled and Sandwiched TiO2@Au@C Hollow Spheres with Enhanced Visible-Light-Driven Photocatalytic Activity [J].

Cai, Jiabai ;

Wu, Xueqing ;

Li, Shunxing ;

Zheng, Fengying ;

Zhu, Licong ;

Lai, Zhanghua .

ACS APPLIED MATERIALS & INTERFACES, 2015, 7 (06) :3764-3772

[7] Titanium dioxide nanomaterials: Synthesis, properties, modifications, and applications [J].

Chen, Xiaobo ;

Mao, Samuel S. .

CHEMICAL REVIEWS, 2007, 107 (07) :2891-2959

[8] ELECTROCHEMICAL PHOTOLYSIS OF WATER AT A SEMICONDUCTOR ELECTRODE [J].

FUJISHIMA, A ;

HONDA, K .

NATURE, 1972, 238 (5358) :37-+

[9] Role of UV Plasmonics in the Photocatalytic Performance of TiO2 Decorated with Aluminum Nanoparticles [J].

Ghori, Muhammad Zubair ;

Veziroglu, Salih ;

Hinz, Alexander ;

Shurtleff, Bill Brook ;

Polonskyi, Oleksandr ;

Strunskus, Thomas ;

Adam, Jost ;

Faupel, Franz ;

Aktas, Oral Cenk .

ACS APPLIED NANO MATERIALS, 2018, 1 (08) :3760-3764

[10] A comparative study of photocatalysis on highly active columnar TiO2 nanostructures in-air and in-solution [J].

Ghori, Muhammad Zubair ;

Veziroglu, Salih ;

Henkel, Bodo ;

Vahl, Alexander ;

Polonskyi, Oleksandr ;

Strunskus, Thomas ;

Faupel, Franz ;

Aktas, Oral Cenk .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2018, 178 :170-178

← 1 2 3 4 5 6 →