A review of mechanism and adsorption capacities of biochar-based engineered composites for removing aquatic pollutants from contaminated water

Water contamination by aquatic pollutants (antibiotics, heavy metals, nutrients, and organic pollutants) has become the most serious issue of recent times due to associated human health risks. Biochar (BC) has been deemed an effective and promising green material for the remediation of a wide range...

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Main Authors: Ghulam Murtaza, Zeeshan Ahmed, Dong-Qin Dai, Rashid Iqbal, Sami Bawazeer, Muhammad Usman, Muhammad Rizwan, Javed Iqbal, Muhammad Irfan Akram, Abdullah Safar Althubiani, Akash Tariq, Iftikhar Ali
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-11-01
Series:Frontiers in Environmental Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fenvs.2022.1035865/full
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author Ghulam Murtaza
Ghulam Murtaza
Zeeshan Ahmed
Zeeshan Ahmed
Dong-Qin Dai
Rashid Iqbal
Sami Bawazeer
Muhammad Usman
Muhammad Rizwan
Javed Iqbal
Muhammad Irfan Akram
Abdullah Safar Althubiani
Akash Tariq
Akash Tariq
Iftikhar Ali
Iftikhar Ali
author_facet Ghulam Murtaza
Ghulam Murtaza
Zeeshan Ahmed
Zeeshan Ahmed
Dong-Qin Dai
Rashid Iqbal
Sami Bawazeer
Muhammad Usman
Muhammad Rizwan
Javed Iqbal
Muhammad Irfan Akram
Abdullah Safar Althubiani
Akash Tariq
Akash Tariq
Iftikhar Ali
Iftikhar Ali
author_sort Ghulam Murtaza
collection DOAJ
description Water contamination by aquatic pollutants (antibiotics, heavy metals, nutrients, and organic pollutants) has become the most serious issue of recent times due to associated human health risks. Biochar (BC) has been deemed an effective and promising green material for the remediation of a wide range of environmental pollutants. Due to its limited properties (small pore size and low surface functionality), pristine BC has encountered bottlenecks in decontamination applications. These limitations can be rectified by modifying the pristine BC into engineered BC via multiple modification methods (physical, chemical, and mechanical), thus improving its decontamination functionalities. Recently, these engineered BCs/BC-based composites or BC composites have gathered pronounced attention for water decontamination due to fewer chemical requirements, high energy efficiency, and pollutant removal capacity. BC-based composites are synthesized by mixing BC with various modifiers, including carbonaceous material, clay minerals, metals, and metal oxides. They considerably modify the physiochemical attributes of BC and increase its adsorption ability against various types of aquatic pollutants. BC-based composites are efficient in eliminating target pollutants. The efficiency and type of a specific mechanism depend on various factors, mainly on the physicochemical characteristics and composition of the BC-based composites and the target pollutants. Among the different engineered BCs, the efficiency of clay-BC composites in removing the antibiotics, dyes, metals, and nutrients was good. This review could help develop a comprehensive understanding of using engineered BCs as effective materials for the remediation of contaminated water. Finally, gaps and challenges in research are identified, and future research needs are proposed.
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spelling doaj.art-979e47f0cd49440a885f8c82d66e63bb2022-12-22T02:52:36ZengFrontiers Media S.A.Frontiers in Environmental Science2296-665X2022-11-011010.3389/fenvs.2022.10358651035865A review of mechanism and adsorption capacities of biochar-based engineered composites for removing aquatic pollutants from contaminated waterGhulam Murtaza0Ghulam Murtaza1Zeeshan Ahmed2Zeeshan Ahmed3Dong-Qin Dai4Rashid Iqbal5Sami Bawazeer6Muhammad Usman7Muhammad Rizwan8Javed Iqbal9Muhammad Irfan Akram10Abdullah Safar Althubiani11Akash Tariq12Akash Tariq13Iftikhar Ali14Iftikhar Ali15Center for Yunnan Plateau Biological Resources Protection and Utilization, Yunnan Engineering Research Center of Fruit Wine, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan, ChinaFaculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, ChinaXinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, Xinjiang, ChinaCele National Station of Observation and Research for Desert-Grassland Ecosystems, Chinese Academy of Sciences, Urumqi, Xinjiang, ChinaCenter for Yunnan Plateau Biological Resources Protection and Utilization, Yunnan Engineering Research Center of Fruit Wine, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan, ChinaDepartment of Agronomy, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, Punjab, PakistanDepartment of Pharmacognosy, Umm Al- Qura University, Faculty of Pharmacy, Makkah, Saudi ArabiaDepartment of Botany, Government College University, Lahore, Punjab, PakistanSchool of Energy Science and Engineering, Central South University, Changsha, Hunan, ChinaDepartment of Botany, Bacha Khan University, Charsadda, Khyber Pakhtunkhwa, Pakistan0Department of Entomology, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, Punjab, Pakistan1Department of Biology, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi ArabiaXinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, Xinjiang, ChinaCele National Station of Observation and Research for Desert-Grassland Ecosystems, Chinese Academy of Sciences, Urumqi, Xinjiang, China2Center for Plant Sciences and Biodiversity, University of Swat, Charbagh, Khyber Pakhtunkhwa, Pakistan3State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, ChinaWater contamination by aquatic pollutants (antibiotics, heavy metals, nutrients, and organic pollutants) has become the most serious issue of recent times due to associated human health risks. Biochar (BC) has been deemed an effective and promising green material for the remediation of a wide range of environmental pollutants. Due to its limited properties (small pore size and low surface functionality), pristine BC has encountered bottlenecks in decontamination applications. These limitations can be rectified by modifying the pristine BC into engineered BC via multiple modification methods (physical, chemical, and mechanical), thus improving its decontamination functionalities. Recently, these engineered BCs/BC-based composites or BC composites have gathered pronounced attention for water decontamination due to fewer chemical requirements, high energy efficiency, and pollutant removal capacity. BC-based composites are synthesized by mixing BC with various modifiers, including carbonaceous material, clay minerals, metals, and metal oxides. They considerably modify the physiochemical attributes of BC and increase its adsorption ability against various types of aquatic pollutants. BC-based composites are efficient in eliminating target pollutants. The efficiency and type of a specific mechanism depend on various factors, mainly on the physicochemical characteristics and composition of the BC-based composites and the target pollutants. Among the different engineered BCs, the efficiency of clay-BC composites in removing the antibiotics, dyes, metals, and nutrients was good. This review could help develop a comprehensive understanding of using engineered BCs as effective materials for the remediation of contaminated water. Finally, gaps and challenges in research are identified, and future research needs are proposed.https://www.frontiersin.org/articles/10.3389/fenvs.2022.1035865/fullantibioticsbiocharheavy metaldecontaminationsorption capacity
spellingShingle Ghulam Murtaza
Ghulam Murtaza
Zeeshan Ahmed
Zeeshan Ahmed
Dong-Qin Dai
Rashid Iqbal
Sami Bawazeer
Muhammad Usman
Muhammad Rizwan
Javed Iqbal
Muhammad Irfan Akram
Abdullah Safar Althubiani
Akash Tariq
Akash Tariq
Iftikhar Ali
Iftikhar Ali
A review of mechanism and adsorption capacities of biochar-based engineered composites for removing aquatic pollutants from contaminated water
Frontiers in Environmental Science
antibiotics
biochar
heavy metal
decontamination
sorption capacity
title A review of mechanism and adsorption capacities of biochar-based engineered composites for removing aquatic pollutants from contaminated water
title_full A review of mechanism and adsorption capacities of biochar-based engineered composites for removing aquatic pollutants from contaminated water
title_fullStr A review of mechanism and adsorption capacities of biochar-based engineered composites for removing aquatic pollutants from contaminated water
title_full_unstemmed A review of mechanism and adsorption capacities of biochar-based engineered composites for removing aquatic pollutants from contaminated water
title_short A review of mechanism and adsorption capacities of biochar-based engineered composites for removing aquatic pollutants from contaminated water
title_sort review of mechanism and adsorption capacities of biochar based engineered composites for removing aquatic pollutants from contaminated water
topic antibiotics
biochar
heavy metal
decontamination
sorption capacity
url https://www.frontiersin.org/articles/10.3389/fenvs.2022.1035865/full
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