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SBA-16 Cage-Like Porous Material Modified with APTES as an Adsorbent for Pb(2+) Ions Removal from Aqueous Solution
Tridimensional cubic mesoporous silica, SBA-16, functionalized with aminopropyl groups, were employed as adsorbents for Pb(2+) ion removal from aqueous solution. The adsorption capacity was investigated for the effect of pH, contact time, temperature, and concentration of 3-aminopropyltriethoxysilan...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7079607/ https://www.ncbi.nlm.nih.gov/pubmed/32093053 http://dx.doi.org/10.3390/ma13040927 |
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author | Palos-Barba, Viviana Moreno-Martell, Abigail Hernández-Morales, Verónica Peza-Ledesma, Carmen L. Rivera-Muñoz, Eric M. Nava, Rufino Pawelec, Barbara |
author_facet | Palos-Barba, Viviana Moreno-Martell, Abigail Hernández-Morales, Verónica Peza-Ledesma, Carmen L. Rivera-Muñoz, Eric M. Nava, Rufino Pawelec, Barbara |
author_sort | Palos-Barba, Viviana |
collection | PubMed |
description | Tridimensional cubic mesoporous silica, SBA-16, functionalized with aminopropyl groups, were employed as adsorbents for Pb(2+) ion removal from aqueous solution. The adsorption capacity was investigated for the effect of pH, contact time, temperature, and concentration of 3-aminopropyltriethoxysilane (APTES) employed for adsorbent functionalization. The textural properties and morphology of the adsorbents were evaluated by N(2) physisorption, small-angle X-ray diffraction (XRD), diffuse reflectance spectroscopy (UV-vis), and transmission electron microscopy (TEM). The functionalization of the SBA-16 was evaluated by elemental analysis (N), thermogravimetric analysis (TG), Fourier transform infrared spectroscopy (FT-IR), and X-ray photoelectron spectroscopy (XPS). Batch adsorption studies show that the total Pb(2+) ions removal was archived on adsorbent having an optimized amount of aminopropyl groups (2N-SBA-16). The maximum of Pb(2+) ions removal occurred at optimized adsorption conditions: pH = 5–6, contact time 40 min, and at a low initial lead concentration in solution (200 mg L(−1)). Under the same adsorption conditions, the amino-functionalized SBA-16 with cubic 3D unit cell structure exhibited higher adsorption capability than its SBA-15 counterpart with uniform mesoporous channels. |
format | Online Article Text |
id | pubmed-7079607 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-70796072020-03-24 SBA-16 Cage-Like Porous Material Modified with APTES as an Adsorbent for Pb(2+) Ions Removal from Aqueous Solution Palos-Barba, Viviana Moreno-Martell, Abigail Hernández-Morales, Verónica Peza-Ledesma, Carmen L. Rivera-Muñoz, Eric M. Nava, Rufino Pawelec, Barbara Materials (Basel) Article Tridimensional cubic mesoporous silica, SBA-16, functionalized with aminopropyl groups, were employed as adsorbents for Pb(2+) ion removal from aqueous solution. The adsorption capacity was investigated for the effect of pH, contact time, temperature, and concentration of 3-aminopropyltriethoxysilane (APTES) employed for adsorbent functionalization. The textural properties and morphology of the adsorbents were evaluated by N(2) physisorption, small-angle X-ray diffraction (XRD), diffuse reflectance spectroscopy (UV-vis), and transmission electron microscopy (TEM). The functionalization of the SBA-16 was evaluated by elemental analysis (N), thermogravimetric analysis (TG), Fourier transform infrared spectroscopy (FT-IR), and X-ray photoelectron spectroscopy (XPS). Batch adsorption studies show that the total Pb(2+) ions removal was archived on adsorbent having an optimized amount of aminopropyl groups (2N-SBA-16). The maximum of Pb(2+) ions removal occurred at optimized adsorption conditions: pH = 5–6, contact time 40 min, and at a low initial lead concentration in solution (200 mg L(−1)). Under the same adsorption conditions, the amino-functionalized SBA-16 with cubic 3D unit cell structure exhibited higher adsorption capability than its SBA-15 counterpart with uniform mesoporous channels. MDPI 2020-02-19 /pmc/articles/PMC7079607/ /pubmed/32093053 http://dx.doi.org/10.3390/ma13040927 Text en © 2020 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 Palos-Barba, Viviana Moreno-Martell, Abigail Hernández-Morales, Verónica Peza-Ledesma, Carmen L. Rivera-Muñoz, Eric M. Nava, Rufino Pawelec, Barbara SBA-16 Cage-Like Porous Material Modified with APTES as an Adsorbent for Pb(2+) Ions Removal from Aqueous Solution |
title | SBA-16 Cage-Like Porous Material Modified with APTES as an Adsorbent for Pb(2+) Ions Removal from Aqueous Solution |
title_full | SBA-16 Cage-Like Porous Material Modified with APTES as an Adsorbent for Pb(2+) Ions Removal from Aqueous Solution |
title_fullStr | SBA-16 Cage-Like Porous Material Modified with APTES as an Adsorbent for Pb(2+) Ions Removal from Aqueous Solution |
title_full_unstemmed | SBA-16 Cage-Like Porous Material Modified with APTES as an Adsorbent for Pb(2+) Ions Removal from Aqueous Solution |
title_short | SBA-16 Cage-Like Porous Material Modified with APTES as an Adsorbent for Pb(2+) Ions Removal from Aqueous Solution |
title_sort | sba-16 cage-like porous material modified with aptes as an adsorbent for pb(2+) ions removal from aqueous solution |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7079607/ https://www.ncbi.nlm.nih.gov/pubmed/32093053 http://dx.doi.org/10.3390/ma13040927 |
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