Preparation of Mg-doped coffee waste for efficient removal of methylene blue and lead from water
Water pollution, particularly from industrial sources, poses severe environmental and health risks, necessitating cost-effective and sustainable solutions. This study investigates the preparation and application of magnesium-doped coffee waste biochar (Mg-CW) for the removal of methylene blue (MB) a...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-05-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844025014720 |
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| author | Pengfei Li Liang Zhao Long Li Kehan Xu Jibran Iqbal Zhenbang Tian Xing Xing Hui Li Yaping Hou Jie Wang Manman Xu |
| author_facet | Pengfei Li Liang Zhao Long Li Kehan Xu Jibran Iqbal Zhenbang Tian Xing Xing Hui Li Yaping Hou Jie Wang Manman Xu |
| author_sort | Pengfei Li |
| collection | DOAJ |
| description | Water pollution, particularly from industrial sources, poses severe environmental and health risks, necessitating cost-effective and sustainable solutions. This study investigates the preparation and application of magnesium-doped coffee waste biochar (Mg-CW) for the removal of methylene blue (MB) and lead ions (Pb2+) from water. Mg-CW, synthesized via one-step pyrolysis at 300 °C, demonstrated remarkable adsorption capacities of 1024.88 mg/g for MB and 349.59 mg/g for Pb2+. Adsorption efficiencies were optimal at pH 12 for MB and pH 5 for Pb2+, attributed to enhanced electrostatic interactions and complexation mechanisms. Regeneration studies revealed that Mg-CW retains over 95 % adsorption efficiency after multiple cycles, highlighting its durability and cost-effectiveness. This study provides a scalable and eco-friendly approach for industrial wastewater treatment, utilizing waste-derived materials to address pressing environmental challenges. |
| format | Article |
| id | doaj-art-c636b1c36f1c4d579f04ff10e1df2b9f |
| institution | OA Journals |
| issn | 2405-8440 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj-art-c636b1c36f1c4d579f04ff10e1df2b9f2025-08-20T02:34:35ZengElsevierHeliyon2405-84402025-05-011110e4309110.1016/j.heliyon.2025.e43091Preparation of Mg-doped coffee waste for efficient removal of methylene blue and lead from waterPengfei Li0Liang Zhao1Long Li2Kehan Xu3Jibran Iqbal4Zhenbang Tian5Xing Xing6Hui Li7Yaping Hou8Jie Wang9Manman Xu10Institute of Chemistry, Co., Ltd, Henan Academy of Sciences, Zhengzhou, 450002, China; School of Materials Science and Engineering, Henan Normal University, Xinxiang, 453002, ChinaInstitute of Chemistry, Co., Ltd, Henan Academy of Sciences, Zhengzhou, 450002, ChinaInstitute of Chemistry, Co., Ltd, Henan Academy of Sciences, Zhengzhou, 450002, China; Corresponding author.School of Materials Science and Engineering, North China University of Water Resources and Electric Power, Zhengzhou, 450045, ChinaCollege of Natural and Health Sciences, Zayed University, Abu Dhabi, United Arab EmiratesInstitute of Chemistry, Co., Ltd, Henan Academy of Sciences, Zhengzhou, 450002, ChinaInstitute of Chemistry, Co., Ltd, Henan Academy of Sciences, Zhengzhou, 450002, ChinaSchool of Agronomy and Bioscience, Dehong Teachers' College, Dehong Prefecture, 678499, ChinaHuaxia Besince Environmental Technology Co., Ltd., Zhengzhou, 450000, ChinaHuaxia Besince Environmental Technology Co., Ltd., Zhengzhou, 450000, ChinaHuaxia Besince Environmental Technology Co., Ltd., Zhengzhou, 450000, ChinaWater pollution, particularly from industrial sources, poses severe environmental and health risks, necessitating cost-effective and sustainable solutions. This study investigates the preparation and application of magnesium-doped coffee waste biochar (Mg-CW) for the removal of methylene blue (MB) and lead ions (Pb2+) from water. Mg-CW, synthesized via one-step pyrolysis at 300 °C, demonstrated remarkable adsorption capacities of 1024.88 mg/g for MB and 349.59 mg/g for Pb2+. Adsorption efficiencies were optimal at pH 12 for MB and pH 5 for Pb2+, attributed to enhanced electrostatic interactions and complexation mechanisms. Regeneration studies revealed that Mg-CW retains over 95 % adsorption efficiency after multiple cycles, highlighting its durability and cost-effectiveness. This study provides a scalable and eco-friendly approach for industrial wastewater treatment, utilizing waste-derived materials to address pressing environmental challenges.http://www.sciencedirect.com/science/article/pii/S2405844025014720Coffee wasteMagnesium chlorideMethylene bluePb2+ |
| spellingShingle | Pengfei Li Liang Zhao Long Li Kehan Xu Jibran Iqbal Zhenbang Tian Xing Xing Hui Li Yaping Hou Jie Wang Manman Xu Preparation of Mg-doped coffee waste for efficient removal of methylene blue and lead from water Heliyon Coffee waste Magnesium chloride Methylene blue Pb2+ |
| title | Preparation of Mg-doped coffee waste for efficient removal of methylene blue and lead from water |
| title_full | Preparation of Mg-doped coffee waste for efficient removal of methylene blue and lead from water |
| title_fullStr | Preparation of Mg-doped coffee waste for efficient removal of methylene blue and lead from water |
| title_full_unstemmed | Preparation of Mg-doped coffee waste for efficient removal of methylene blue and lead from water |
| title_short | Preparation of Mg-doped coffee waste for efficient removal of methylene blue and lead from water |
| title_sort | preparation of mg doped coffee waste for efficient removal of methylene blue and lead from water |
| topic | Coffee waste Magnesium chloride Methylene blue Pb2+ |
| url | http://www.sciencedirect.com/science/article/pii/S2405844025014720 |
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