Preparation and Photoelectrochemical Properties of Mo/N Co-Doped TiO2 Nanotube Array Films

被引：2

作者：

Ding, Yaoxin ^{[1
]}

Xue, Danni ^{[1
]}

Yu, Hanzhou ^{[1
]}

Shen, Jie ^{[1
]}

机构：

[1] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China

来源：

COATINGS | 2023年 / 13卷 / 07期

基金：

中国国家自然科学基金;

关键词：

titanium dioxide; nanotubes; molybdenum-nitrogen co-doping; optoelectronic properties; SENSITIZED SOLAR-CELLS; PHOTOCATALYTIC ACTIVITY; OPTICAL-PROPERTIES; NITROGEN; BAND; MICROSPHERES; PERFORMANCE; PRINCIPLES; FE;

D O I：

10.3390/coatings13071230

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Mo/N co-doped TiO2 nanotube array films were obtained by a combination of magnetron sputtering and anodization. The influences of doping concentration and nanotube morphology on the structure, morphology, elemental composition, light-absorption capacity, and optoelectronic properties of TiO2 nanotubes were studied. The findings revealed that Mo was primarily incorporated into the TiO2 lattice in the Mo6+ valence state, while N was mainly embedded into the lattice as interstitial atoms. It was observed that when the sputtering power was 35 W for TiN target and 150 W for Mo-Ti target, the Mo/N co-doped TiO2 nanotube array films exhibited the best photovoltaic performance with a photogenerated current of 0.50 & mu;A/cm(2), which was 5.5 times of that of Mo-doped TiO2. The enhanced photocatalytic efficiency observed in Mo/N co-doped TiO2 nanotube array films can be ascribed to three main factors: an increase in the concentration of photogenerated electrons and holes, a reduction in the band gap width, and intense light absorption within the visible spectrum.

引用

页数：13

共 48 条

[1] Visible-light photocatalysis in nitrogen-doped titanium oxides [J].

Asahi, R ;

Morikawa, T ;

Ohwaki, T ;

Aoki, K ;

Taga, Y .

SCIENCE, 2001, 293 (5528) :269-271

[2] W and Mo doped TiO2: Synthesis, characterization and photocatalytic activity [J].

Aviles-Garcia, Osmin ;

Espino-Valencia, Jaime ;

Romero, Rubi ;

Luis Rico-Cerda, Jose ;

Arroyo-Albiter, Manuel ;

Natividad, Reyna .

FUEL, 2017, 198 :31-41

[3] Photocatalytic degradation of organic pollutants using TiO2-based photocatalysts: A review [J].

Chen, Dongjie ;

Cheng, Yanling ;

Zhou, Nan ;

Chen, Paul ;

Wang, Yunpu ;

Li, Kun ;

Huo, Shuhao ;

Cheng, Pengfei ;

Peng, Peng ;

Zhang, Renchuang ;

Wang, Lu ;

Liu, Hui ;

Liu, Yuhuan ;

Ruan, Roger .

JOURNAL OF CLEANER PRODUCTION, 2020, 268

[4] RETRACTED: Enhanced photocatalytic activity of La and N co-doped TiO2/diatomite composite (Retracted Article) [J].

Chen, Yan ;

Wu, Qiong ;

Zhou, Chao ;

Jin, Qiutong .

POWDER TECHNOLOGY, 2017, 322 :296-300

[5] Assessing Tauc Plot Slope Quantification: ZnO Thin Films as a Model System [J].

Coulter, Jennifer B. ;

Birnie, Dunbar P., III .

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2018, 255 (03)

[6] HETEROGENEOUS PHOTOCATALYSIS [J].

FOX, MA ;

DULAY, MT .

CHEMICAL REVIEWS, 1993, 93 (01) :341-357

[7] Hydrogenated F-doped TiO2 for photocatalytic hydrogen evolution and pollutant degradation [J].

Gao, Qiongzhi ;

Si, Fangyuan ;

Zhang, Shengsen ;

Fang, Yueping ;

Chen, Xiaobo ;

Yang, Siyuan .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2019, 44 (16) :8011-8019

[8] Facile Formation of Anatase/Rutile TiO2 Nanocomposites with Enhanced Photocatalytic Activity [J].

He, Jing ;

Du, Yi-en ;

Bai, Yang ;

An, Jing ;

Cai, Xuemei ;

Chen, Yongqiang ;

Wang, Pengfei ;

Yang, Xiaojing ;

Feng, Qi .

MOLECULES, 2019, 24 (16)

[9] Synthesis and Photocatalytic Activity of Mo-Doped TiO2 Nanoparticles [J].

Huang, Ji-guo ;

Guo, Xue-ting ;

Wang, Bo ;

Li, Lin-yang ;

Zhao, Mei-xia ;

Dong, Li-li ;

Liu, Xing-juan ;

Huang, Yu-ting .

JOURNAL OF SPECTROSCOPY, 2015, 2015 :1-8

[10] Enhancing the photocatalytic oxidation of dibenzothiophene using visible light responsive Fe and N co-doped TiO2 nanoparticles [J].

Kalantari, Kaveh ;

Kalbasi, Mansour ;

Sohrabi, Morteza ;

Royaeee, Sayed Javid .

CERAMICS INTERNATIONAL, 2017, 43 (01) :973-981

← 1 2 3 4 5 →