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

被引：22

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

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