Hydrothermal synthesis of α-Fe2O3-decorated MoS2 nanosheets with enhanced photocatalytic activity

被引：19

作者：

Lejbini, M. Behtaj ^{[1
]}

Sangpour, P. ^{[1
]}

机构：

[1] Mat & Energy Res Ctr, Dept Nanotechnol & Adv Mat, Karaj, Iran

来源：

OPTIK | 2019年 / 177卷

关键词：

alpha-Fe(2)O(3)nanoparticles; MoS2; nanosheets; Nanocomposites; Band gap; Photocatalytic activity; OPTICAL-PROPERTIES; FACILE SYNTHESIS; ONE-POT; NANOPARTICLES; ZNO; MICROSPHERES; EFFICIENT; GRAPHENE; TIO2; DEGRADATION;

D O I：

10.1016/j.ijleo.2018.09.019

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

MoS2 nanosheets decorated with alpha-Fe2O3 nanoparticles were synthesized via the hydrothermal method and characterized in terms of crystal structure, particle size and morphology, elemental purity and optical properties. Results showed the formation of alpha-Fe2O3/MoS2 composites composed of hematite nanoparticles with average diameter of 40 nm and MoS2 nanosheets with a hexagonal crystal structure and sheet thickness of < 10 nm. Optical band gap measurements revealed the decrease of the band gap of alpha-Fe2O3 nanoparticles from 2.65 to 2.15 eV upon loading MoS2 nanosheets in a way that the as-synthesized alpha-Fe2O3/MoS2 nanocomposites showed a high absorption capability in the visible region of the light spectrum. Photocatalytic examinations showed over 98% degradation/decolorization of Rhudamine Blue (Rh B) organic dye within 75 min by as-synthesized alpha-Fe2O3/MoS2 nanoparticles that was quite better than pure alpha-Fe2O3 nanoparticles and MoS2 nanosheets.

引用

页码：112 / 117

页数：6

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