Superb adsorption capacity of biochar derived from leather shavings for Congo red.

ABSTRACT: Research on biochar for removal of dyes has been a hot topic because of its excellent eco-friendly and economical properties. In this study, leather shavings biochar (LSB) with high adsorption capacity was prepared and tested with Congo red as a model dye for adsorption. The research results show that the as-prepared biochar exhibits a porous structure, with a high specific surface area (2365 m² g^-1), and it would be beneficial for removing Congo red from effluents. More interestingly, adsorption capacity of LSB for Congo red was enhanced by chromium compounds on the surface of biochar through chelation and electrostatic interactions. Chelation occured between the chromium compounds and amino groups of Congo red. Adsorption data for Congo red on the biochar were succe

SUBMITTER: Huang X 

PROVIDER: S-EPMC9085273 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature