Production of Algae-Derived Biochar and Its Application in Pollutants Adsorption—A Mini Review

Developing algae cultivation for food, chemicals, and bio-energy generates a significant amount of algal waste/residue after utilization. Meanwhile, harmful algal blooms caused by abnormal proliferation of various algae produce a large amount of algal biomass, posing serious harm to human health, th...

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Main Authors: Luyang Li, Jinfeng Wang, Weiming Sun, Xinhong Peng, Xinhua Qi
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Separations
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Online Access:https://www.mdpi.com/2297-8739/12/2/32
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author Luyang Li
Jinfeng Wang
Weiming Sun
Xinhong Peng
Xinhua Qi
author_facet Luyang Li
Jinfeng Wang
Weiming Sun
Xinhong Peng
Xinhua Qi
author_sort Luyang Li
collection DOAJ
description Developing algae cultivation for food, chemicals, and bio-energy generates a significant amount of algal waste/residue after utilization. Meanwhile, harmful algal blooms caused by abnormal proliferation of various algae produce a large amount of algal biomass, posing serious harm to human health, the environment and the economy. Converting algae body to biochar is a crucial method with which to take advantage of this resource. Biochar usually has a large specific surface area, developed pore structure, high cation exchange capacity and rich surface functional groups. With the advantage of stable physical/chemical properties and easy modification techniques, biochar posited as an ideal adsorption material. From the perspective of algal biomass utilization, this paper reviews the preparation and modification methods, structural characteristics, physicochemical properties and environmental implications of algal biochar. The adsorption effect and mechanisms of algal biochar on nutrients, heavy metals, and organic matter in water are introduced. In light of the current research status, the challenges faced in practical application of algae-derived biochar adsorption materials are pointed out, and a research direction for preparation and application is also developed, with a view to providing a reference for the further utilization of algae-derived biochar.
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spelling doaj-art-e71c01267611469da1d076bbaee14d6a2025-08-20T02:44:43ZengMDPI AGSeparations2297-87392025-01-011223210.3390/separations12020032Production of Algae-Derived Biochar and Its Application in Pollutants Adsorption—A Mini ReviewLuyang Li0Jinfeng Wang1Weiming Sun2Xinhong Peng3Xinhua Qi4College of Marine Resources & Environment, Hebei Normal University of Science & Technology, Qinhuangdao 066600, ChinaCollege of Marine Resources & Environment, Hebei Normal University of Science & Technology, Qinhuangdao 066600, ChinaCollege of Marine Resources & Environment, Hebei Normal University of Science & Technology, Qinhuangdao 066600, ChinaSchool of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, ChinaCollege of Environmental Science and Engineering, Nankai University, No. 38, Tongyan Road, Jinnan District, Tianjin 300350, ChinaDeveloping algae cultivation for food, chemicals, and bio-energy generates a significant amount of algal waste/residue after utilization. Meanwhile, harmful algal blooms caused by abnormal proliferation of various algae produce a large amount of algal biomass, posing serious harm to human health, the environment and the economy. Converting algae body to biochar is a crucial method with which to take advantage of this resource. Biochar usually has a large specific surface area, developed pore structure, high cation exchange capacity and rich surface functional groups. With the advantage of stable physical/chemical properties and easy modification techniques, biochar posited as an ideal adsorption material. From the perspective of algal biomass utilization, this paper reviews the preparation and modification methods, structural characteristics, physicochemical properties and environmental implications of algal biochar. The adsorption effect and mechanisms of algal biochar on nutrients, heavy metals, and organic matter in water are introduced. In light of the current research status, the challenges faced in practical application of algae-derived biochar adsorption materials are pointed out, and a research direction for preparation and application is also developed, with a view to providing a reference for the further utilization of algae-derived biochar.https://www.mdpi.com/2297-8739/12/2/32algaebiomassbiocharadsorptionwater pollution
spellingShingle Luyang Li
Jinfeng Wang
Weiming Sun
Xinhong Peng
Xinhua Qi
Production of Algae-Derived Biochar and Its Application in Pollutants Adsorption—A Mini Review
Separations
algae
biomass
biochar
adsorption
water pollution
title Production of Algae-Derived Biochar and Its Application in Pollutants Adsorption—A Mini Review
title_full Production of Algae-Derived Biochar and Its Application in Pollutants Adsorption—A Mini Review
title_fullStr Production of Algae-Derived Biochar and Its Application in Pollutants Adsorption—A Mini Review
title_full_unstemmed Production of Algae-Derived Biochar and Its Application in Pollutants Adsorption—A Mini Review
title_short Production of Algae-Derived Biochar and Its Application in Pollutants Adsorption—A Mini Review
title_sort production of algae derived biochar and its application in pollutants adsorption a mini review
topic algae
biomass
biochar
adsorption
water pollution
url https://www.mdpi.com/2297-8739/12/2/32
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AT jinfengwang productionofalgaederivedbiocharanditsapplicationinpollutantsadsorptionaminireview
AT weimingsun productionofalgaederivedbiocharanditsapplicationinpollutantsadsorptionaminireview
AT xinhongpeng productionofalgaederivedbiocharanditsapplicationinpollutantsadsorptionaminireview
AT xinhuaqi productionofalgaederivedbiocharanditsapplicationinpollutantsadsorptionaminireview