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Nian Hong,Qin Cheng,Ashantha Goonetilleke,Erick R. Bandala,An Liu 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.89 No.-
This study investigated the role of surface hydrophobicity/hydrophilicity of biochar on its pollutantleaching potential (pollutants originally in biomass feedstock), including nutrients, organic matter andmetals, in water treatment applications. The study outcomes confirmed that biochar with greaterhydrophilic surface leached comparatively higher loads of nutrients and organic matter compared tobiochar with mostly hydrophobic surface, while biochar with greater hydrophilic surface leached lowermetal loads. This trend is attributed to the changes to the physical and chemical properties of biocharincluding specific surface area and surface functional groups, as well as being related to the binding forcesbetween the biochar surface and the different compounds. Further, the study results substantiated thesignificant influence of surface characteristics of biochar, and its preparation process on pollutantleaching potential. The study outcomes provide essential guidance on the appropriate use of biochar asan adsorbent in water treatment, including raw biomass selection and the production processes to beadopted.
Biochar-supported nanomaterials for environmental applications
Oscar M. Rodriguez-Narvaez,Juan Manuel Peralta-Hernandez,Ashantha Goonetilleke,Erick R. Bandala 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.78 No.-
Immobilizing nanomaterials in highly porous, surface active, structurally stable biochar creates novelnanocomposites that combines the well-known advantages of both materials. The exceptionalcontaminant adsorption and/or catalytic degradation capabilities of these nanocomposites haveattracted the attention of the scientific community for possible use in environmental applications. Thispaper reviews the different methodologies for synthesizing biochar-supported nanomaterials, the keyphysical and chemical characteristics of these nanomaterials, and their performance in environmentalapplications, as well as identifies current knowledge gaps and potential directions for further researchand development.