TY - JOUR
T1 - Implications of layered double hydroxides assembled biochar composite in adsorptive removal of contaminants
T2 - Current status and future perspectives
AU - Vithanage, Meththika
AU - Ashiq, Ahmed
AU - Ramanayaka, Sammani
AU - Bhatnagar, Amit
N1 - Funding Information:
Financial support from the grant ASP/01/RE/SCI/2017/83 from the Research Council, University of Sri Jayewardenepura , Sri Lanka, is acknowledged.
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/10/1
Y1 - 2020/10/1
N2 - In recent years, biochar composites have received considerable attention for environmental applications. This paper reviews the current state of research on Layered Double Hydroxides (LDHs) tailored biochar composites in terms of their synthesis methods, characteristics, and their use as adsorbents for the removal of various pollutants from water, highlighting and discussing the key advancement in this area. The adsorption potential of LDHs-biochar composites for different inorganic and organic contaminants, important factors affecting composites' properties and the adsorption process, and the mechanisms involved in adsorption are discussed in this review. Though the adsorption capacities are high for the composites studied, partition coefficient which suggest the performance of composites remain low for most adsorbents. Despite the recent progress in the synthesis of LDHs-biochar composites, further research is needed to improve the performance of composites for different classes of aquatic pollutants, and to test their applicability in pilot-scale with real wastewater under real environmental conditions.
AB - In recent years, biochar composites have received considerable attention for environmental applications. This paper reviews the current state of research on Layered Double Hydroxides (LDHs) tailored biochar composites in terms of their synthesis methods, characteristics, and their use as adsorbents for the removal of various pollutants from water, highlighting and discussing the key advancement in this area. The adsorption potential of LDHs-biochar composites for different inorganic and organic contaminants, important factors affecting composites' properties and the adsorption process, and the mechanisms involved in adsorption are discussed in this review. Though the adsorption capacities are high for the composites studied, partition coefficient which suggest the performance of composites remain low for most adsorbents. Despite the recent progress in the synthesis of LDHs-biochar composites, further research is needed to improve the performance of composites for different classes of aquatic pollutants, and to test their applicability in pilot-scale with real wastewater under real environmental conditions.
KW - Adsorption
KW - Intercalation
KW - Layered structure
KW - LDHs-biochar composite
KW - Pollutants removal
KW - Water treatment
UR - https://www.scopus.com/pages/publications/85085981765
U2 - 10.1016/j.scitotenv.2020.139718
DO - 10.1016/j.scitotenv.2020.139718
M3 - Article
C2 - 32526569
AN - SCOPUS:85085981765
SN - 0048-9697
VL - 737
JO - Science of the Total Environment
JF - Science of the Total Environment
M1 - 139718
ER -
