Facile synthesis of novel SWCNT/HgS nanohybrid: An effective photocatalyst for degradation of methylene blue

被引：12
作者：
Saini, Pramendra Kumar [1 ]
Kumar, Nitish [1 ]
Chandra, Ramesh [2 ]
Nath, Mala [2 ]
Minocha, Ashwani Kumar [1 ]
机构：
[1] CSIR Cent Bldg Res Inst, Environm Sci & Technol Div, Roorkee 247667, Uttarakhand, India
[2] Indian Inst Technol Roorkee, Dept Chem, Roorkee 247667, Uttarakhand, India
来源：
MATERIALS LETTERS | 2019年 / 250卷
关键词：
Carbon nanotubes; Nanocomposites; HgS nanoparticles; Hydrothermal synthesis; Photocatalysis; CARBON NANOTUBE; DYE DEGRADATION;
D O I：
10.1016/j.matlet.2019.04.090
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Mercury sulphide (HgS) nanoparticles decorated single walled carbon nanotubes (SWCNT/HgS) were synthesized via a hydrothermal route. We investigated structural and photocatalytic properties of SWCNT/HgS nanohybrid. The diameter of pure SWCNTs and SWCNT/HgS as determined by Raman spectroscopy was 1.607 nm and 1.646 nm, respectively. Hexagonal phase of alpha-HgS nanoparticles decorated on SWCNTs was evidenced in HRTEM, SAED, XPS and XRD spectra. An increase in photocatalytic efficiency of SWCNT/HgS nanohybrid (99.08%) as compared to HgS NPs (73.0%) was observed for photodegradation of methylene blue (5 ppm) under sunlight. This study suggests a promising approach to rational design of advanced heterogeneous photocatalysts for environmental remediation. (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页码：5 / 8
页数：4
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