Fast adsorption of methylene blue, basic fuchsin, and malachite green by a novel sulfonic-grafted triptycene-based porous organic polymer.

ABSTRACT: In this study, a novel triptycene-based porous polymer grafted with sulfonic acid (TPP-SO₃H) was successfully synthesized by the post-synthetic modification of the non-functionalized polymer TPP. The polymer TPP-SO₃H was well-characterized and was found to be a fast and effective absorbent for the cationic dyes methylene blue (MEB), basic fuchsin (BF), and malachite green (MG), with over 95% removal being observed within 10 min from initial concentrations of 100 mg L^-1, 100 mg L^-1, and 300 mg L^-1, respectively. The adsorption process for MEB, BF, and MG was pH-dependent. The adsorption behaviours for MEB, BF, and MG follow pseudo-second-order kinetics and fit the Langmuir model. Moreover, the maximum adsorption capacities of MEB, BF, a

SUBMITTER: Li C 

PROVIDER: S-EPMC9092056 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature