Biochar-based materials in environmental pollutant elimination, H2 production and CO2 capture applications

Abstract Biochar and biochar-based materials have been studied extensively in multidisciplinary areas because of their outstanding physicochemical properties. In this review article, biochar the removal environmental pollutants, hydrogen generation carbon dioxide capture were summarized compared. The interaction mechanisms discussed from experimental results characterization analysis. high porous structures, active surface sites, (co)doping single metals/nonmetals, incorporation metal oxides or other improved activity applications. However, there are still some challenges such as: (1) fact that H 2 with selectivity produced syngas to meet real application requirement industrial is main challenge production; (2) selective CO stability, adsorption capacity recyclability at low-cost should be considered focused on; (3) sorption-(photo)degradation organic chemicals; (4) sorption-reduction-extraction/solidification metals/radionuclides efficient methods for elimination pollutants. end, perspectives, possible techniques materials’ future described. Graphical