TY - JOUR
T1 - Recent advances in nanoscale-metal assisted biochar derived from waste biomass used for heavy metals removal
AU - Ho, Shih Hsin
AU - Zhu, Shishu
AU - Chang, Jo Shu
N1 - Funding Information:
This work was supported by the State Key Laboratory of Urban Water Resource and Environment ( Harbin Institute of Technology , China) (No. 2016TS07 ), and financially supported by the Project of Thousand Youth Talents.
Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2017/12
Y1 - 2017/12
N2 - Pollution of heavy metals (HMs) is a detrimental treat to human health and need to be cleaned up in a proper way. Biochar (BC), a low-cost and “green” adsorbent, has attracted significant attention due to its considerable HMs removal capacity. In particular, nano-metals have recently been used to assist BC in improving its reactivity, surface texture and magnetism. Synthesis methods and metal precursors greatly influence the properties and structures of the nanocomposites, thereby affecting their HMs removal performance. This review presents advances in synthesis methods, formation mechanisms and surface characteristics of BC nanocomposites, along with the discussions on HMs removal mechanisms and the effects of environmental factors on HMs removal efficiency. Performance of using BC nanocomposites to remediate real HMs-containing wastewater and issues associated with its process scale-up are also discussed. This review aims to provide useful information to facilitate the development of HMs removal by nanoscale-metal assisted BC.
AB - Pollution of heavy metals (HMs) is a detrimental treat to human health and need to be cleaned up in a proper way. Biochar (BC), a low-cost and “green” adsorbent, has attracted significant attention due to its considerable HMs removal capacity. In particular, nano-metals have recently been used to assist BC in improving its reactivity, surface texture and magnetism. Synthesis methods and metal precursors greatly influence the properties and structures of the nanocomposites, thereby affecting their HMs removal performance. This review presents advances in synthesis methods, formation mechanisms and surface characteristics of BC nanocomposites, along with the discussions on HMs removal mechanisms and the effects of environmental factors on HMs removal efficiency. Performance of using BC nanocomposites to remediate real HMs-containing wastewater and issues associated with its process scale-up are also discussed. This review aims to provide useful information to facilitate the development of HMs removal by nanoscale-metal assisted BC.
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U2 - 10.1016/j.biortech.2017.08.061
DO - 10.1016/j.biortech.2017.08.061
M3 - Review article
C2 - 28893502
AN - SCOPUS:85028946517
SN - 0960-8524
VL - 246
SP - 123
EP - 134
JO - Agricultural Wastes
JF - Agricultural Wastes
ER -
