Facile preparation of black Nb4+ self-doped K4Nb6O17 microspheres with high solar absorption and enhanced photocatalytic activity

被引：92

作者：

Zhou, Chao ^{[1
]}

Zhao, Yufei ^{[1
]}

Shang, Lu ^{[1
]}

Cao, Yinhu ^{[1
,2
]}

Wu, Li-Zhu ^{[1
]}

Tung, Chen-Ho ^{[1
]}

Zhang, Tierui ^{[1
]}

机构：

[1] Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Photochem Convers & Optoelect Mat, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 10049, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2014年 / 50卷 / 67期

基金：

北京市自然科学基金; 中国国家自然科学基金;

关键词：

INTERCALATED K4NB6O17; HYDROGEN GENERATION; ASSISTED SYNTHESIS; ONE-POT; TIO2; NANOPARTICLES; EVOLUTION; FACETS;

D O I：

10.1039/c4cc04432k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Black Nb4+ self-doped K4Nb6O17 microspheres were prepared for the first time through a facile UV light photoreduction method. By the introduction of Nb4+, the defective K4Nb6O17 can harvest the full spectrum of visible light as well as near-infrared light. The black K4Nb6O17 microspheres showed improved visible-light-driven photocatalytic H-2 production activity. Importantly, the present synthetic approach is also applicable to the preparation of other Nb4+ self-doped niobates.

引用

收藏

页码：9554 / 9556

页数：3

相关论文

共 33 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] Semiconductor-based Photocatalytic Hydrogen Generation [J].

Chen, Xiaobo ;

Shen, Shaohua ;

Guo, Liejin ;

Mao, Samuel S. .

CHEMICAL REVIEWS, 2010, 110 (11) :6503-6570

[3] Photocatalytic production of hydrogen on Ni/NiO/KNbO3/CdS nanocomposites using visible light [J].

Choi, Jina ;

Ryu, Su Young ;

Balcerski, William ;

Lee, T. K. ;

Hoffmann, Michael R. .

JOURNAL OF MATERIALS CHEMISTRY, 2008, 18 (20) :2371-2378

[4] Microwave-assisted synthesis of CdS intercalated K4Nb6O17 and its photocatalytic activity for hydrogen production [J].

Cui, Wenquan ;

Liu, Yanfei ;

Liu, Li ;

Hu, Jinshan ;

Liang, Yinghua .

APPLIED CATALYSIS A-GENERAL, 2012, 417 :111-118

[5] Reduced and n-Type Doped TiO2: Nature of Ti3+ Species [J].

Di Valentin, Cristiana ;

Pacchioni, Gianfranco ;

Selloni, Annabella .

JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (48) :20543-20552

[6] Photocatalytic materials: recent achievements and near future trends [J].

Fresno, Fernando ;

Portela, Raquel ;

Suarez, Silvia ;

Coronado, Juan M. .

JOURNAL OF MATERIALS CHEMISTRY A, 2014, 2 (09) :2863-2884

[7] Photocatalytic Activities of Layered Titanates and Niobates Ion-Exchanged with Sn2+ under Visible Light Irradiation [J].

Hosogi, Yasuhiro ;

Kato, Hideki ;

Kudo, Akihiko .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (45) :17678-17682

[8] Understanding the Role of Nanostructures for Efficient Hydrogen Generation on Immobilized Photocatalysts [J].

Jiang, Zhelong ;

Tang, Yuxin ;

Tay, Qiuling ;

Zhang, Yanyan ;

Malyi, Oleksandr I. ;

Wang, Danping ;

Deng, Jiyang ;

Lai, Yuekun ;

Zhou, Huanfu ;

Chen, Xiaodong ;

Dong, Zhili ;

Chen, Zhong .

ADVANCED ENERGY MATERIALS, 2013, 3 (10) :1368-1380

[9] NICKEL-LOADED K4NB6O17 PHOTOCATALYST IN THE DECOMPOSITION OF H2O INTO H-2 AND O-2 - STRUCTURE AND REACTION-MECHANISM [J].

KUDO, A ;

SAYAMA, K ;

TANAKA, A ;

ASAKURA, K ;

DOMEN, K ;

MARUYA, K ;

ONISHI, T .

JOURNAL OF CATALYSIS, 1989, 120 (02) :337-352

[10] Enhancing photocatalytic activity of one-dimensional KNbO3 nanowires by Au nanoparticles under ultraviolet and visible-light [J].

Lan, Jinyao ;

Zhou, Xuemei ;

Liu, Gang ;

Yu, Jiaguo ;

Zhang, Jingchang ;

Zhi, Linjie ;

Nie, Guangjun .

NANOSCALE, 2011, 3 (12) :5161-5167

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