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CO(2)-assisted fabrication of silica gel adsorbent in honeycomb rotary wheels for air dehumidification
A honeycomb rotary wheel fabricated from sheet adsorbent of silica gel is a competitive drying facility for air dehumidification in modern drying and air conditioning industries due to its large contacting area (3,000 m(2)/m(3)) and the rapid diffusion of the adsorbate compared to silica gel pellets...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Frontiers Media S.A.
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9576925/ https://www.ncbi.nlm.nih.gov/pubmed/36267654 http://dx.doi.org/10.3389/fchem.2022.1038095 |
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author | You, Junjie Qin, Junbo Du, Chuanqing Fu, Jianhua Cheng, Siqing |
author_facet | You, Junjie Qin, Junbo Du, Chuanqing Fu, Jianhua Cheng, Siqing |
author_sort | You, Junjie |
collection | PubMed |
description | A honeycomb rotary wheel fabricated from sheet adsorbent of silica gel is a competitive drying facility for air dehumidification in modern drying and air conditioning industries due to its large contacting area (3,000 m(2)/m(3)) and the rapid diffusion of the adsorbate compared to silica gel pellets. The delicate preparation procedure of hygroscopic silica gel is paramount for improved adsorption capacity by optimizing the surface area, pore size, and pore volume of silica gel. In this article, silica gel adsorbent in a honeycomb rotary wheel was fabricated by neutralizing the impregnated water glass solution with a modulus of 3.3 on the glass fiber sheet of the honeycomb matrix using CO(2) at different pressure at room temperature instead of corrosive acids. The as-obtained silica gel absorbent was characterized by XRD, scanning electron microscopy (SEM), specific surface area and pore size analysis, and dynamic vapor/gas sorption analysis. The results showed that the as-obtained silica gel adsorbent is uniform in size and tunable in terms of specific surface area, pore size, pore volume, and adsorption capacity by CO(2) pressure. The typical silica gel fabricated by CO(2) of 0.25 MPa with a specific surface area of 764.86 m(2)/g, an average micropore size with a diameter of 2.94 nm, and a pore volume of 0.45 ml/g delivers a saturated adsorption capacity of as high as 287.24 mg/g at RH 50%, which is the best in adsorption performance compared to the previously reported results. This provides a new strategy for environment-friendly manufacturing of silica gel adsorbent in honeycomb rotary wheels for air dehumidification. |
format | Online Article Text |
id | pubmed-9576925 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-95769252022-10-19 CO(2)-assisted fabrication of silica gel adsorbent in honeycomb rotary wheels for air dehumidification You, Junjie Qin, Junbo Du, Chuanqing Fu, Jianhua Cheng, Siqing Front Chem Chemistry A honeycomb rotary wheel fabricated from sheet adsorbent of silica gel is a competitive drying facility for air dehumidification in modern drying and air conditioning industries due to its large contacting area (3,000 m(2)/m(3)) and the rapid diffusion of the adsorbate compared to silica gel pellets. The delicate preparation procedure of hygroscopic silica gel is paramount for improved adsorption capacity by optimizing the surface area, pore size, and pore volume of silica gel. In this article, silica gel adsorbent in a honeycomb rotary wheel was fabricated by neutralizing the impregnated water glass solution with a modulus of 3.3 on the glass fiber sheet of the honeycomb matrix using CO(2) at different pressure at room temperature instead of corrosive acids. The as-obtained silica gel absorbent was characterized by XRD, scanning electron microscopy (SEM), specific surface area and pore size analysis, and dynamic vapor/gas sorption analysis. The results showed that the as-obtained silica gel adsorbent is uniform in size and tunable in terms of specific surface area, pore size, pore volume, and adsorption capacity by CO(2) pressure. The typical silica gel fabricated by CO(2) of 0.25 MPa with a specific surface area of 764.86 m(2)/g, an average micropore size with a diameter of 2.94 nm, and a pore volume of 0.45 ml/g delivers a saturated adsorption capacity of as high as 287.24 mg/g at RH 50%, which is the best in adsorption performance compared to the previously reported results. This provides a new strategy for environment-friendly manufacturing of silica gel adsorbent in honeycomb rotary wheels for air dehumidification. Frontiers Media S.A. 2022-10-04 /pmc/articles/PMC9576925/ /pubmed/36267654 http://dx.doi.org/10.3389/fchem.2022.1038095 Text en Copyright © 2022 You, Qin, Du, Fu and Cheng. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Chemistry You, Junjie Qin, Junbo Du, Chuanqing Fu, Jianhua Cheng, Siqing CO(2)-assisted fabrication of silica gel adsorbent in honeycomb rotary wheels for air dehumidification |
title | CO(2)-assisted fabrication of silica gel adsorbent in honeycomb rotary wheels for air dehumidification |
title_full | CO(2)-assisted fabrication of silica gel adsorbent in honeycomb rotary wheels for air dehumidification |
title_fullStr | CO(2)-assisted fabrication of silica gel adsorbent in honeycomb rotary wheels for air dehumidification |
title_full_unstemmed | CO(2)-assisted fabrication of silica gel adsorbent in honeycomb rotary wheels for air dehumidification |
title_short | CO(2)-assisted fabrication of silica gel adsorbent in honeycomb rotary wheels for air dehumidification |
title_sort | co(2)-assisted fabrication of silica gel adsorbent in honeycomb rotary wheels for air dehumidification |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9576925/ https://www.ncbi.nlm.nih.gov/pubmed/36267654 http://dx.doi.org/10.3389/fchem.2022.1038095 |
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