Cited by 1,322Adsorption and biosorption for pollutant removalEnvironmental remediation with nanomaterialsEnvironmental and Analytical Chemistry Studies

Engineered/designer biochar for contaminant removal/immobilization from soil and water: Potential and implication of biochar modification

Rajapaksha, Anushka Upamali, Chen, Season S., Tsang, Daniel C.W., Zhang, Ming, Vithanage, Meththika, Mandal, Sanchita, Gao, Bin, Bolan, Nanthi S. +1 more·2016·Chemosphere

Abstract

The use of biochar has been suggested as a means of remediating contaminated soil and water. The practical applications of conventional biochar for contaminant immobilization and removal however need further improvements. Hence, recent attention has focused on modification of biochar with novel structures and surface properties in order to improve its remediation efficacy and environmental benefits. Engineered/designer biochars are commonly used terms to indicate application-oriented, outcome-based biochar modification or synthesis. In recent years, biochar modifications involving various methods such as, acid treatment, base treatment, amination, surfactant modification, impregnation of mineral sorbents, steam activation and magnetic modification have been widely studied. This review summarizes and evaluates biochar modification methods, corresponding mechanisms, and their benefits for contaminant management in soil and water. Applicability and performance of modification methods depend on the type of contaminants (i.e., inorganic/organic, anionic/cationic, hydrophilic/hydrophobic, polar/non-polar), environmental conditions, remediation goals, and land use purpose. In general, modification to produce engineered/designer biochar is likely to enhance the sorption capacity of biochar and its potential applications for environmental remediation.

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Crossref · 10.1016/j.chemosphere.2016.01.043

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Authors
Rajapaksha, A. U., Chen, S. S., Tsang, D. C. W., Zhang, M., Vithanage, M., Mandal, S., Gao, B., Bolan, N. S., & Ok, Y. S.
Affiliations
  • Kangwon National University (KR)
  • Hong Kong Polytechnic University (HK)
  • China Jiliang University (CN)
  • National Institute of Fundamental Studies (LK)
  • University of South Australia (AU)
  • University of Florida (US)
Corresponding author
  • Tsang, Daniel C.W.
  • Ok, Yong Sik
Venue
Chemosphere
Publisher
Elsevier BV
Published
2016-04
Volume
148
Pages
276-291
ISSN
0045-6535 (ISSN-L)
OpenAlex
W2256613245
Cited by
1,322
References
130
Citations by year
2026: 71 · 2025: 120 · 2024: 134 · 2023: 158 · 2022: 168 · 2021: 165 · 2020: 165 · 2019: 142 · 2018: 88 · 2017: 86 · 2016: 23
FWCI
6.42
Type
journal article
Language
en
Open access
closed
Locations
  • Chemosphere (publishedVersion)
  • PubMed (publishedVersion)
  • PolyU Institutional Research Archive (Hong Kong Polytechnic University) (submittedVersion)
  • Rare & Special e-Zone (The Hong Kong University of Science and Technology) (submittedVersion)
Funders
  • National Research Foundation of Korea (NRF-2015R1A2A2A11001432)
  • Hong Kong Arts Development Council (PolyU 152221/15E)
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
  • Physical Sciences › Engineering › Biomedical Engineering › Environmental remediation with nanomaterials
  • Physical Sciences › Environmental Science › Water Science and Technology › Environmental and Analytical Chemistry Studies
Keywords
engineered biochar, biochar modification, contaminant immobilization, pollutant removal, soil remediation, water remediation, acid treatment, base treatment, amination, surfactant modification, steam activation, magnetic biochar, sorption capacity, surface properties
MeSH terms
Adsorption, Charcoal, Soil Pollutants, Waste Disposal, Fluid, Water Pollutants, Chemical

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