Cross-linking of poly(dimethylaminoethyl methacrylate) by phytic acid: pH-responsive adsorbent for high-efficiency removal of cationic and anionic dyes
Wenbo Liu, Rui Hu, Yanke Li, Yangze Huang, Yixi Wang, Zhong Wei, Erlei Yu, Xuhong Guo
Abstract
for RR24. The excellent adsorption abilities toward RR24 are due to the introduced phytic acid groups, which could promote protonation of tertiary amine groups under acid pH conditions. Moreover, PAGD is able to selectively remove RR24 in a mixed solution of cationic dye and RR24. The adsorption isotherms and kinetics of PAGD fit well with the Langmuir isotherm and pseudo-second-order kinetic model, respectively. These results imply that PAGD is a promising adsorbent for removal of both cationic and anionic dyes.
Topics & Concepts
Cationic polymerizationAdsorptionGlycidyl methacrylateChemistryLangmuir adsorption modelAmine gas treatingMethacrylateProtonationPhytic acidPolymer chemistryNuclear chemistryPolymerizationKineticsOrganic chemistryPolymerPhysicsIonBiochemistryQuantum mechanicsAdsorption and biosorption for pollutant removalNanomaterials for catalytic reactionsChromium effects and bioremediation