Visible Active N-Doped TiO2/WS2 Heterojunction Nano Rods: Synthesis, Characterization and Photocatalytic Activity

被引：24

作者：

Elangovan, E. ^{[1
]}

Sivakumart, T. ^{[1
]}

Brindha, A. ^{[1
]}

Thannaraiselvi, K. ^{[1
]}

Sakthivel, K. ^{[1
]}

Kathiravan, K. ^{[1
]}

Aishwarya, S. ^{[2
]}

机构：

[1] Anna Univ, AC Tech, Dept Appl Sci & Technol, Catalysis Lab, Chennai 600025, Tamil Nadu, India

[2] Anna Univ, AC Tech, Dept Chem Engn, Chennai 600025, Tamil Nadu, India

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2019年 / 19卷 / 08期

关键词：

N-TiO2/WS2; Hydrothermal; Photocatalysis; Nano Sheet; Nano Rods; Congo Red; HYDROTHERMAL SYNTHESIS; DEGRADATION; WS2; NANOTUBES; TITANIA; MOS2;

D O I：

10.1166/jnn.2019.16482

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

N-doped titania nano sheets and N-doped titania/tungsten dioxide nano rods were synthesized by two step hydrothermal method. The composition, structural, functional, morphological and optical properties of the as synthesized N-TiO2/WS2 hybrids were characterized by XRD, UV-DRS, PL, FE-SEM with EDAX, TEM, FT-IR and Raman spectroscopy. Surface area and thermal stability of the catalysts were analyzed by BET and TG/DTA techniques. The photocatalytic activity of the heterojunction catalyst was evaluated towards the decomposition of a harmful dye namely congo red in an aqueous solution under visible light irradiation. The results show superior photocatalytic activity for N-TiO2/WS2 nanocomposite. This unusual photocatalytic activity is attributed to the synergistic effect between WS2 and N-TiO2.

引用

页码：4429 / 4437

页数：9

共 38 条

[1] Visible active N, S co-doped TiO2/graphene photocatalysts for the degradation of hazardous dyes [J].

Appavu, Brindha ;

Thiripuranthagan, Sivakumar .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2017, 340 :146-156

[2] 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

[3] Photocatalytic degradation of orange II on the novel hetero-system WS2/TiO2 under UV light [J].

Bassaid, S. ;

Bellal, B. ;

Trari, M. .

REACTION KINETICS MECHANISMS AND CATALYSIS, 2015, 115 (01) :389-400

[4]

Brindha A., 2016, J IND ENG CHEM, V36, P184

[5] Synthesis and Characterization of Nitrogen-doped TiO2 Nanomaterials for Photocatalytic Activities under Visible Light [J].

Chainarong, Siriphan ;

Sikong, Lek ;

Pavasupree, Sorapong ;

Niyomwas, Sutham .

9TH ECO-ENERGY AND MATERIALS SCIENCE AND ENGINEERING SYMPOSIUM, 2011, 9

[6] Low-temperature synthesis of soluble and processable organic-capped anatase TiO2 nanorods [J].

Cozzoli, PD ;

Kornowski, A ;

Weller, H .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (47) :14539-14548

[7] Plasmon-mediated, highly enhanced photocatalytic degradation of industrial textile dyes using hybrid ZnO@Ag core-shell nanorods [J].

Dinesh, V. P. ;

Biji, P. ;

Ashok, Anuradha ;

Dhara, S. K. ;

Kamruddin, M. ;

Tyagi, A. K. ;

Raj, Baldev .

RSC ADVANCES, 2014, 4 (103) :58930-58940

[8] Great enhancement of photocatalytic activity of nitrogen-doped titania by coupling with tungsten oxide [J].

Gao, Bifen ;

Ma, Ying ;

Cao, Yaan ;

Yang, Wensheng ;

Yao, Jiannian .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (29) :14391-14397

[9]

Giwa A., 2012, Journal of Environmental Protection, V3, P1063

[10] Preparation and photocatalytic behavior of MoS2 and WS2 nanocluster sensitized TiO2 [J].

Ho, WK ;

Yu, JC ;

Lin, J ;

Yu, JG ;

Li, PS .

LANGMUIR, 2004, 20 (14) :5865-5869

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