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Effective removal of anionic textile dyes using adsorbent synthesized from coffee waste

Adsorption of Reactive Black 5 and Congo Red from aqueous solution by coffee waste modified with polyethylenimine was investigated. The removal percentages of both dyes increased with amount of polyethyleneimine in the modified adsorbent. Characterization revealed that polyethyleneimine modification...

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Autores principales: Wong, Syieluing, Ghafar, Nawal Abd, Ngadi, Norzita, Razmi, Fatin Amirah, Inuwa, Ibrahim Mohammed, Mat, Ramli, Amin, Nor Aishah Saidina
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7031400/
https://www.ncbi.nlm.nih.gov/pubmed/32076087
http://dx.doi.org/10.1038/s41598-020-60021-6
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author Wong, Syieluing
Ghafar, Nawal Abd
Ngadi, Norzita
Razmi, Fatin Amirah
Inuwa, Ibrahim Mohammed
Mat, Ramli
Amin, Nor Aishah Saidina
author_facet Wong, Syieluing
Ghafar, Nawal Abd
Ngadi, Norzita
Razmi, Fatin Amirah
Inuwa, Ibrahim Mohammed
Mat, Ramli
Amin, Nor Aishah Saidina
author_sort Wong, Syieluing
collection PubMed
description Adsorption of Reactive Black 5 and Congo Red from aqueous solution by coffee waste modified with polyethylenimine was investigated. The removal percentages of both dyes increased with amount of polyethyleneimine in the modified adsorbent. Characterization revealed that polyethyleneimine modification improved the adsorbent surface chemistry, while slight improvement of adsorbent textural properties was also observed. The adsorbent’s excellent performance was demonstrated by high removal percentages towards the anionic dyes in most experimental runs. The modelling result showed that anionic dyes adsorption occurred via monolayer adsorption, and chemisorption was the rate-controlling step. The adsorbent possesses higher maximum adsorption capacity towards Reactive Black 5 (77.52 mg/g) than Congo Red (34.36 mg/g), due to the higher number of functional groups in Reactive Black 5 that interact with the adsorbent. This study reveals the potential of adsorbent derived from coffee waste in textile wastewater treatment. Furthermore, surface chemistry modification is proven as an effective strategy to enhance the performance of biowaste-derived adsorbents.
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spelling pubmed-70314002020-02-27 Effective removal of anionic textile dyes using adsorbent synthesized from coffee waste Wong, Syieluing Ghafar, Nawal Abd Ngadi, Norzita Razmi, Fatin Amirah Inuwa, Ibrahim Mohammed Mat, Ramli Amin, Nor Aishah Saidina Sci Rep Article Adsorption of Reactive Black 5 and Congo Red from aqueous solution by coffee waste modified with polyethylenimine was investigated. The removal percentages of both dyes increased with amount of polyethyleneimine in the modified adsorbent. Characterization revealed that polyethyleneimine modification improved the adsorbent surface chemistry, while slight improvement of adsorbent textural properties was also observed. The adsorbent’s excellent performance was demonstrated by high removal percentages towards the anionic dyes in most experimental runs. The modelling result showed that anionic dyes adsorption occurred via monolayer adsorption, and chemisorption was the rate-controlling step. The adsorbent possesses higher maximum adsorption capacity towards Reactive Black 5 (77.52 mg/g) than Congo Red (34.36 mg/g), due to the higher number of functional groups in Reactive Black 5 that interact with the adsorbent. This study reveals the potential of adsorbent derived from coffee waste in textile wastewater treatment. Furthermore, surface chemistry modification is proven as an effective strategy to enhance the performance of biowaste-derived adsorbents. Nature Publishing Group UK 2020-02-19 /pmc/articles/PMC7031400/ /pubmed/32076087 http://dx.doi.org/10.1038/s41598-020-60021-6 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Wong, Syieluing
Ghafar, Nawal Abd
Ngadi, Norzita
Razmi, Fatin Amirah
Inuwa, Ibrahim Mohammed
Mat, Ramli
Amin, Nor Aishah Saidina
Effective removal of anionic textile dyes using adsorbent synthesized from coffee waste
title Effective removal of anionic textile dyes using adsorbent synthesized from coffee waste
title_full Effective removal of anionic textile dyes using adsorbent synthesized from coffee waste
title_fullStr Effective removal of anionic textile dyes using adsorbent synthesized from coffee waste
title_full_unstemmed Effective removal of anionic textile dyes using adsorbent synthesized from coffee waste
title_short Effective removal of anionic textile dyes using adsorbent synthesized from coffee waste
title_sort effective removal of anionic textile dyes using adsorbent synthesized from coffee waste
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7031400/
https://www.ncbi.nlm.nih.gov/pubmed/32076087
http://dx.doi.org/10.1038/s41598-020-60021-6
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