Cargando…
Facile synthesis of MoO(2)/CaSO(4) composites as highly efficient adsorbents for congo red and rhodamine B
A novel rod-shaped MoO(2)/CaSO(4) composite was prepared by using hexa-ammonium molybdate and flue gas desulfurization gypsum via a simple mixed-solvothermal route. In this composite, CaSO(4) matrices are decorated with MoO(2) nanoparticles, and non-structural mesopores are formed via particle packi...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2018
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9077254/ https://www.ncbi.nlm.nih.gov/pubmed/35540873 http://dx.doi.org/10.1039/c7ra11292k |
_version_ | 1784702081661140992 |
---|---|
author | Jia, Xin-Jian Wang, Jinshu Wu, Junshu Teng, Weili Zhao, Bingxin Li, Hongyi Du, Yucheng |
author_facet | Jia, Xin-Jian Wang, Jinshu Wu, Junshu Teng, Weili Zhao, Bingxin Li, Hongyi Du, Yucheng |
author_sort | Jia, Xin-Jian |
collection | PubMed |
description | A novel rod-shaped MoO(2)/CaSO(4) composite was prepared by using hexa-ammonium molybdate and flue gas desulfurization gypsum via a simple mixed-solvothermal route. In this composite, CaSO(4) matrices are decorated with MoO(2) nanoparticles, and non-structural mesopores are formed via particle packing. Moreover, it displays an excellent adsorption capability towards anionic congo red (CR) and cationic rhodamine B (RhB). The adsorption quantities per unit mass and removal efficiencies of the two dyes are significantly influenced by adsorbent dose, solution pH, and temperature. The adsorption isotherm data can be best fitted by the Langmuir model, and the calculated maximum adsorption quantities at 303.5 K are 853.54 mg g(−1) for CR and 86.38 mg g(−1) for RhB, respectively, which are superior to other common adsorbents. The corresponding kinetic data can be well matched with the pseudo-second-order model. Additionally, the CR adsorption is an exothermic process, while the RhB adsorption is an endothermic process. Both of them are multi-step chemisorption processes influenced by surface adsorption and intra-particle diffusion. This MoO(2)/CaSO(4) composite can be applied as an alternative adsorbent for removing organic dyestuffs from printing and dyeing wastewater. |
format | Online Article Text |
id | pubmed-9077254 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90772542022-05-09 Facile synthesis of MoO(2)/CaSO(4) composites as highly efficient adsorbents for congo red and rhodamine B Jia, Xin-Jian Wang, Jinshu Wu, Junshu Teng, Weili Zhao, Bingxin Li, Hongyi Du, Yucheng RSC Adv Chemistry A novel rod-shaped MoO(2)/CaSO(4) composite was prepared by using hexa-ammonium molybdate and flue gas desulfurization gypsum via a simple mixed-solvothermal route. In this composite, CaSO(4) matrices are decorated with MoO(2) nanoparticles, and non-structural mesopores are formed via particle packing. Moreover, it displays an excellent adsorption capability towards anionic congo red (CR) and cationic rhodamine B (RhB). The adsorption quantities per unit mass and removal efficiencies of the two dyes are significantly influenced by adsorbent dose, solution pH, and temperature. The adsorption isotherm data can be best fitted by the Langmuir model, and the calculated maximum adsorption quantities at 303.5 K are 853.54 mg g(−1) for CR and 86.38 mg g(−1) for RhB, respectively, which are superior to other common adsorbents. The corresponding kinetic data can be well matched with the pseudo-second-order model. Additionally, the CR adsorption is an exothermic process, while the RhB adsorption is an endothermic process. Both of them are multi-step chemisorption processes influenced by surface adsorption and intra-particle diffusion. This MoO(2)/CaSO(4) composite can be applied as an alternative adsorbent for removing organic dyestuffs from printing and dyeing wastewater. The Royal Society of Chemistry 2018-01-04 /pmc/articles/PMC9077254/ /pubmed/35540873 http://dx.doi.org/10.1039/c7ra11292k Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/ |
spellingShingle | Chemistry Jia, Xin-Jian Wang, Jinshu Wu, Junshu Teng, Weili Zhao, Bingxin Li, Hongyi Du, Yucheng Facile synthesis of MoO(2)/CaSO(4) composites as highly efficient adsorbents for congo red and rhodamine B |
title | Facile synthesis of MoO(2)/CaSO(4) composites as highly efficient adsorbents for congo red and rhodamine B |
title_full | Facile synthesis of MoO(2)/CaSO(4) composites as highly efficient adsorbents for congo red and rhodamine B |
title_fullStr | Facile synthesis of MoO(2)/CaSO(4) composites as highly efficient adsorbents for congo red and rhodamine B |
title_full_unstemmed | Facile synthesis of MoO(2)/CaSO(4) composites as highly efficient adsorbents for congo red and rhodamine B |
title_short | Facile synthesis of MoO(2)/CaSO(4) composites as highly efficient adsorbents for congo red and rhodamine B |
title_sort | facile synthesis of moo(2)/caso(4) composites as highly efficient adsorbents for congo red and rhodamine b |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9077254/ https://www.ncbi.nlm.nih.gov/pubmed/35540873 http://dx.doi.org/10.1039/c7ra11292k |
work_keys_str_mv | AT jiaxinjian facilesynthesisofmoo2caso4compositesashighlyefficientadsorbentsforcongoredandrhodamineb AT wangjinshu facilesynthesisofmoo2caso4compositesashighlyefficientadsorbentsforcongoredandrhodamineb AT wujunshu facilesynthesisofmoo2caso4compositesashighlyefficientadsorbentsforcongoredandrhodamineb AT tengweili facilesynthesisofmoo2caso4compositesashighlyefficientadsorbentsforcongoredandrhodamineb AT zhaobingxin facilesynthesisofmoo2caso4compositesashighlyefficientadsorbentsforcongoredandrhodamineb AT lihongyi facilesynthesisofmoo2caso4compositesashighlyefficientadsorbentsforcongoredandrhodamineb AT duyucheng facilesynthesisofmoo2caso4compositesashighlyefficientadsorbentsforcongoredandrhodamineb |