Lead (Pb²⁺) sorptive removal using chitosan-modified biochar: batch and fixed-bed studies.

ABSTRACT: Chitosan-Modified fast pyrolysis BioChar (CMBC) was used to remove Pb²⁺ from water. CMBC was made by mixing pine wood biochar with a 2% aqueous acetic acid chitosan (85% deacylated chitin) solution followed by treatment with NaOH. The characterizations of both CMBC and Non-Modified BioChar (NMBC) were done using diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), scanning electron microscopy (SEM), surface area measurements (S _BET), elemental analysis, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and ζ-potential measurements. Elemental analysis indicated that chitosan accounts for about 25% weight of the CMBC. The Langmuir maximum adsorption capacity of CMBC at pH 5 was 134 mg g^-1 versus 48.2 mg g

SUBMITTER: Bombuwala Dewage N 

PROVIDER: S-EPMC9082581 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature