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Development of a Citric-Acid-Modified Cellulose Adsorbent Derived from Moringa peregrina Leaf for Adsorptive Removal of Citalopram HBr in Aqueous Solutions
A citric-acid-modified Moringa peregrina leaf substrate was prepared and studied as an effective adsorbent for the adsorptive removal of citalopram HBr (CTM). FTIR spectra were utilized to characterize the prepared solid. The effects of experimental variables on the percentage removal of citalopram...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9227232/ https://www.ncbi.nlm.nih.gov/pubmed/35745679 http://dx.doi.org/10.3390/ph15060760 |
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author | Azmi, Syed Najmul Hejaz Al Lawati, Wafa Mustafa Al Hoqani, Umaima Hamed Abdullah Al Aufi, Ekhlas Al Hatmi, Khalsa Al Zadjali, Jumana Salim Rahman, Nafisur Nasir, Mohd Rahman, Habibur Khan, Shah A. |
author_facet | Azmi, Syed Najmul Hejaz Al Lawati, Wafa Mustafa Al Hoqani, Umaima Hamed Abdullah Al Aufi, Ekhlas Al Hatmi, Khalsa Al Zadjali, Jumana Salim Rahman, Nafisur Nasir, Mohd Rahman, Habibur Khan, Shah A. |
author_sort | Azmi, Syed Najmul Hejaz |
collection | PubMed |
description | A citric-acid-modified Moringa peregrina leaf substrate was prepared and studied as an effective adsorbent for the adsorptive removal of citalopram HBr (CTM). FTIR spectra were utilized to characterize the prepared solid. The effects of experimental variables on the percentage removal of citalopram HBr were investigated using response surface methodology. The optimum conditions selected for removal of CTM were 7 and 4 min, 0.17 g per 50 mL and 35 mg·L(−1) for pH, contact time, adsorbent dose and initial concentration of CTM, respectively. Under the optimized experimental conditions, 82.59% CTM (35 mg·L(−1)) was removed. The Langmuir isotherm, Freundlich isotherm, pseudo second-order kinetic model and diffusion-chemisorption model explained the adsorption data successfully. The maximum adsorption capacity at 298 K was 8.58 mg·g(−1). A thermodynamic study illustrated that CTM adsorption was spontaneous and endothermic in nature. |
format | Online Article Text |
id | pubmed-9227232 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-92272322022-06-25 Development of a Citric-Acid-Modified Cellulose Adsorbent Derived from Moringa peregrina Leaf for Adsorptive Removal of Citalopram HBr in Aqueous Solutions Azmi, Syed Najmul Hejaz Al Lawati, Wafa Mustafa Al Hoqani, Umaima Hamed Abdullah Al Aufi, Ekhlas Al Hatmi, Khalsa Al Zadjali, Jumana Salim Rahman, Nafisur Nasir, Mohd Rahman, Habibur Khan, Shah A. Pharmaceuticals (Basel) Article A citric-acid-modified Moringa peregrina leaf substrate was prepared and studied as an effective adsorbent for the adsorptive removal of citalopram HBr (CTM). FTIR spectra were utilized to characterize the prepared solid. The effects of experimental variables on the percentage removal of citalopram HBr were investigated using response surface methodology. The optimum conditions selected for removal of CTM were 7 and 4 min, 0.17 g per 50 mL and 35 mg·L(−1) for pH, contact time, adsorbent dose and initial concentration of CTM, respectively. Under the optimized experimental conditions, 82.59% CTM (35 mg·L(−1)) was removed. The Langmuir isotherm, Freundlich isotherm, pseudo second-order kinetic model and diffusion-chemisorption model explained the adsorption data successfully. The maximum adsorption capacity at 298 K was 8.58 mg·g(−1). A thermodynamic study illustrated that CTM adsorption was spontaneous and endothermic in nature. MDPI 2022-06-17 /pmc/articles/PMC9227232/ /pubmed/35745679 http://dx.doi.org/10.3390/ph15060760 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Azmi, Syed Najmul Hejaz Al Lawati, Wafa Mustafa Al Hoqani, Umaima Hamed Abdullah Al Aufi, Ekhlas Al Hatmi, Khalsa Al Zadjali, Jumana Salim Rahman, Nafisur Nasir, Mohd Rahman, Habibur Khan, Shah A. Development of a Citric-Acid-Modified Cellulose Adsorbent Derived from Moringa peregrina Leaf for Adsorptive Removal of Citalopram HBr in Aqueous Solutions |
title | Development of a Citric-Acid-Modified Cellulose Adsorbent Derived from Moringa peregrina Leaf for Adsorptive Removal of Citalopram HBr in Aqueous Solutions |
title_full | Development of a Citric-Acid-Modified Cellulose Adsorbent Derived from Moringa peregrina Leaf for Adsorptive Removal of Citalopram HBr in Aqueous Solutions |
title_fullStr | Development of a Citric-Acid-Modified Cellulose Adsorbent Derived from Moringa peregrina Leaf for Adsorptive Removal of Citalopram HBr in Aqueous Solutions |
title_full_unstemmed | Development of a Citric-Acid-Modified Cellulose Adsorbent Derived from Moringa peregrina Leaf for Adsorptive Removal of Citalopram HBr in Aqueous Solutions |
title_short | Development of a Citric-Acid-Modified Cellulose Adsorbent Derived from Moringa peregrina Leaf for Adsorptive Removal of Citalopram HBr in Aqueous Solutions |
title_sort | development of a citric-acid-modified cellulose adsorbent derived from moringa peregrina leaf for adsorptive removal of citalopram hbr in aqueous solutions |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9227232/ https://www.ncbi.nlm.nih.gov/pubmed/35745679 http://dx.doi.org/10.3390/ph15060760 |
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