Cellulose and wood derived activated carbons from <i>Pinus sylvestris</i>: comparative performance in methylene blue adsorption.

ABSTRACT: This work describes the preparation of eco-friendly activated carbons from redwood (Pinus sylvestris L.) sawdust and cellulose extracted from the same source, activated with H₃PO₄ under optimized carbonization conditions. The materials were comprehensively characterized by FTIR, SEM, TGA, XRD, and BET analyses, revealing superior textural uniformity and surface functionality for the cellulose-derived carbon (AC-CRW) compared with its wood-based counterpart (AC-RW). Adsorption experiments demonstrated consistently higher methylene blue uptake by AC-CRW, with the Langmuir isotherm and pseudo-first-order kinetics providing the best fit. Under optimal conditions (24 h impregnation, 1 : 2 impregnation ratio, 650 °C), AC-CRW achieved a maximum capacity of 314.07 mg g

SUBMITTER: Anter N 

PROVIDER: S-EPMC12700138 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature