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Synthesis and characterization of silica gel from Lapindo volcanic mud with ethanol as a cosolvent for desiccant applications

Lapindo mud (LM) is a volcanic mud from a natural disaster that occurred 16 years ago in Sidoarjo District, East Java, Indonesia. The high amount of silica in the local materials of LM has been extracted for silica gel synthesis via hydrometallurgy methods, followed by sol–gel methods. The presence...

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Autores principales: A'yuni, Qurrota, Rahmayanti, Ardhana, Hartati, Hartati, Purkan, Purkan, Subagyo, Riki, Rohmah, Nihayatur, Itsnaini, Luthfiyah Rifdah, Fitri, Medya Ayunda
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9850359/
https://www.ncbi.nlm.nih.gov/pubmed/36741160
http://dx.doi.org/10.1039/d2ra07891k
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author A'yuni, Qurrota
Rahmayanti, Ardhana
Hartati, Hartati
Purkan, Purkan
Subagyo, Riki
Rohmah, Nihayatur
Itsnaini, Luthfiyah Rifdah
Fitri, Medya Ayunda
author_facet A'yuni, Qurrota
Rahmayanti, Ardhana
Hartati, Hartati
Purkan, Purkan
Subagyo, Riki
Rohmah, Nihayatur
Itsnaini, Luthfiyah Rifdah
Fitri, Medya Ayunda
author_sort A'yuni, Qurrota
collection PubMed
description Lapindo mud (LM) is a volcanic mud from a natural disaster that occurred 16 years ago in Sidoarjo District, East Java, Indonesia. The high amount of silica in the local materials of LM has been extracted for silica gel synthesis via hydrometallurgy methods, followed by sol–gel methods. The presence of ethanol in the synthesis process generated a unique textural property at different ratios between ethanol and sodium silicate (e/ss). Sol–gel mediated silica gel synthesis exhibited mesoporous properties with an amorphous structure, which is a characteristic of the silica gel. The silica gel exhibits silica nanoparticles over the average diameter of 2.08 nm with a spherical morphology and is connected to form an agglomeration structure. Increasing the e/ss ratio enhanced the amount of the hydroxyl group and the specific surface area ranged from 57 to 103 m(2) g(−1). The moisture adsorption performance of each silica gel showed that the silica gel with an e/ss ratio of 5 : 5 exhibited the highest adsorption capacity measured by conventional gravimetric methods and thermogravimetric analysis of 10.56% and 11.20% g(water) g(silica)(−1), respectively. These results indicated that the silica gel with an e/ss ratio has a high number of hydroxyl groups and more surface-active sites, which is beneficial for the adsorption process. The adsorption capacity of the synthesized silica gel is also higher than that of the commercial silica gel, indicating an excellent performance for desiccant applications.
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spelling pubmed-98503592023-02-03 Synthesis and characterization of silica gel from Lapindo volcanic mud with ethanol as a cosolvent for desiccant applications A'yuni, Qurrota Rahmayanti, Ardhana Hartati, Hartati Purkan, Purkan Subagyo, Riki Rohmah, Nihayatur Itsnaini, Luthfiyah Rifdah Fitri, Medya Ayunda RSC Adv Chemistry Lapindo mud (LM) is a volcanic mud from a natural disaster that occurred 16 years ago in Sidoarjo District, East Java, Indonesia. The high amount of silica in the local materials of LM has been extracted for silica gel synthesis via hydrometallurgy methods, followed by sol–gel methods. The presence of ethanol in the synthesis process generated a unique textural property at different ratios between ethanol and sodium silicate (e/ss). Sol–gel mediated silica gel synthesis exhibited mesoporous properties with an amorphous structure, which is a characteristic of the silica gel. The silica gel exhibits silica nanoparticles over the average diameter of 2.08 nm with a spherical morphology and is connected to form an agglomeration structure. Increasing the e/ss ratio enhanced the amount of the hydroxyl group and the specific surface area ranged from 57 to 103 m(2) g(−1). The moisture adsorption performance of each silica gel showed that the silica gel with an e/ss ratio of 5 : 5 exhibited the highest adsorption capacity measured by conventional gravimetric methods and thermogravimetric analysis of 10.56% and 11.20% g(water) g(silica)(−1), respectively. These results indicated that the silica gel with an e/ss ratio has a high number of hydroxyl groups and more surface-active sites, which is beneficial for the adsorption process. The adsorption capacity of the synthesized silica gel is also higher than that of the commercial silica gel, indicating an excellent performance for desiccant applications. The Royal Society of Chemistry 2023-01-19 /pmc/articles/PMC9850359/ /pubmed/36741160 http://dx.doi.org/10.1039/d2ra07891k Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
A'yuni, Qurrota
Rahmayanti, Ardhana
Hartati, Hartati
Purkan, Purkan
Subagyo, Riki
Rohmah, Nihayatur
Itsnaini, Luthfiyah Rifdah
Fitri, Medya Ayunda
Synthesis and characterization of silica gel from Lapindo volcanic mud with ethanol as a cosolvent for desiccant applications
title Synthesis and characterization of silica gel from Lapindo volcanic mud with ethanol as a cosolvent for desiccant applications
title_full Synthesis and characterization of silica gel from Lapindo volcanic mud with ethanol as a cosolvent for desiccant applications
title_fullStr Synthesis and characterization of silica gel from Lapindo volcanic mud with ethanol as a cosolvent for desiccant applications
title_full_unstemmed Synthesis and characterization of silica gel from Lapindo volcanic mud with ethanol as a cosolvent for desiccant applications
title_short Synthesis and characterization of silica gel from Lapindo volcanic mud with ethanol as a cosolvent for desiccant applications
title_sort synthesis and characterization of silica gel from lapindo volcanic mud with ethanol as a cosolvent for desiccant applications
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9850359/
https://www.ncbi.nlm.nih.gov/pubmed/36741160
http://dx.doi.org/10.1039/d2ra07891k
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