Cargando…

The Combination of MoS(2)/WO(3) and Its Adsorption Properties of Methylene Blue at Low Temperatures

It was found previously that neither monomer MoS(2) nor WO(3) is an ideal material for the adsorption of organic dyes, while MoS(2)/WO(3) composites synthesized by a two-step hydrothermal method have outstanding adsorption effects. In this work, the chemical state of each element was found to be cha...

Descripción completa

Detalles Bibliográficos
Autores principales: Zheng, Yifan, Wang, Jingjing, Wang, Yedan, Zhou, Huan, Pu, Zhiying, Yang, Qian, Huang, Wanzhen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6982728/
https://www.ncbi.nlm.nih.gov/pubmed/31861262
http://dx.doi.org/10.3390/molecules25010002
_version_ 1783491355346993152
author Zheng, Yifan
Wang, Jingjing
Wang, Yedan
Zhou, Huan
Pu, Zhiying
Yang, Qian
Huang, Wanzhen
author_facet Zheng, Yifan
Wang, Jingjing
Wang, Yedan
Zhou, Huan
Pu, Zhiying
Yang, Qian
Huang, Wanzhen
author_sort Zheng, Yifan
collection PubMed
description It was found previously that neither monomer MoS(2) nor WO(3) is an ideal material for the adsorption of organic dyes, while MoS(2)/WO(3) composites synthesized by a two-step hydrothermal method have outstanding adsorption effects. In this work, the chemical state of each element was found to be changed after combination by X-ray photoelectron spectroscopy analysis, which lead to their differences in adsorption performance. Moreover, the adsorption test of methylene blue on MoS(2)/WO(3) composites was carried out under a series of temperatures, showing that the prepared composites also had appreciable adsorption rates at lower temperatures. The adsorption process could be well described by the Freundlich isothermal model and the pseudo-second order model. In addition, the particle-internal diffusion model simulation revealed that the internal diffusion of the particles played an important role in the whole adsorption process.
format Online
Article
Text
id pubmed-6982728
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-69827282020-02-28 The Combination of MoS(2)/WO(3) and Its Adsorption Properties of Methylene Blue at Low Temperatures Zheng, Yifan Wang, Jingjing Wang, Yedan Zhou, Huan Pu, Zhiying Yang, Qian Huang, Wanzhen Molecules Article It was found previously that neither monomer MoS(2) nor WO(3) is an ideal material for the adsorption of organic dyes, while MoS(2)/WO(3) composites synthesized by a two-step hydrothermal method have outstanding adsorption effects. In this work, the chemical state of each element was found to be changed after combination by X-ray photoelectron spectroscopy analysis, which lead to their differences in adsorption performance. Moreover, the adsorption test of methylene blue on MoS(2)/WO(3) composites was carried out under a series of temperatures, showing that the prepared composites also had appreciable adsorption rates at lower temperatures. The adsorption process could be well described by the Freundlich isothermal model and the pseudo-second order model. In addition, the particle-internal diffusion model simulation revealed that the internal diffusion of the particles played an important role in the whole adsorption process. MDPI 2019-12-18 /pmc/articles/PMC6982728/ /pubmed/31861262 http://dx.doi.org/10.3390/molecules25010002 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zheng, Yifan
Wang, Jingjing
Wang, Yedan
Zhou, Huan
Pu, Zhiying
Yang, Qian
Huang, Wanzhen
The Combination of MoS(2)/WO(3) and Its Adsorption Properties of Methylene Blue at Low Temperatures
title The Combination of MoS(2)/WO(3) and Its Adsorption Properties of Methylene Blue at Low Temperatures
title_full The Combination of MoS(2)/WO(3) and Its Adsorption Properties of Methylene Blue at Low Temperatures
title_fullStr The Combination of MoS(2)/WO(3) and Its Adsorption Properties of Methylene Blue at Low Temperatures
title_full_unstemmed The Combination of MoS(2)/WO(3) and Its Adsorption Properties of Methylene Blue at Low Temperatures
title_short The Combination of MoS(2)/WO(3) and Its Adsorption Properties of Methylene Blue at Low Temperatures
title_sort combination of mos(2)/wo(3) and its adsorption properties of methylene blue at low temperatures
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6982728/
https://www.ncbi.nlm.nih.gov/pubmed/31861262
http://dx.doi.org/10.3390/molecules25010002
work_keys_str_mv AT zhengyifan thecombinationofmos2wo3anditsadsorptionpropertiesofmethyleneblueatlowtemperatures
AT wangjingjing thecombinationofmos2wo3anditsadsorptionpropertiesofmethyleneblueatlowtemperatures
AT wangyedan thecombinationofmos2wo3anditsadsorptionpropertiesofmethyleneblueatlowtemperatures
AT zhouhuan thecombinationofmos2wo3anditsadsorptionpropertiesofmethyleneblueatlowtemperatures
AT puzhiying thecombinationofmos2wo3anditsadsorptionpropertiesofmethyleneblueatlowtemperatures
AT yangqian thecombinationofmos2wo3anditsadsorptionpropertiesofmethyleneblueatlowtemperatures
AT huangwanzhen thecombinationofmos2wo3anditsadsorptionpropertiesofmethyleneblueatlowtemperatures
AT zhengyifan combinationofmos2wo3anditsadsorptionpropertiesofmethyleneblueatlowtemperatures
AT wangjingjing combinationofmos2wo3anditsadsorptionpropertiesofmethyleneblueatlowtemperatures
AT wangyedan combinationofmos2wo3anditsadsorptionpropertiesofmethyleneblueatlowtemperatures
AT zhouhuan combinationofmos2wo3anditsadsorptionpropertiesofmethyleneblueatlowtemperatures
AT puzhiying combinationofmos2wo3anditsadsorptionpropertiesofmethyleneblueatlowtemperatures
AT yangqian combinationofmos2wo3anditsadsorptionpropertiesofmethyleneblueatlowtemperatures
AT huangwanzhen combinationofmos2wo3anditsadsorptionpropertiesofmethyleneblueatlowtemperatures