| Literature DB >> 25978557 |
Xiaoxia Yang1, Yanhui Li2, Qiuju Du3, Jiankun Sun3, Long Chen3, Song Hu3, Zonghua Wang3, Yanzhi Xia3, Linhua Xia3.
Abstract
Novel anionic polyacrylamide/graphene oxide aerogels were prepared by a freeze drying method and used to remove basic fuchsin from aqueous solutions. These aerogels were sponge-like solid with lightweight, fluffy and porous structure. The batch adsorption experiments were carried out to study the effect of various parameters, such as the solution pH, adsorbent dose, contact time and temperature on adsorption properties of basic fuchsin onto anionic polyacrylamide/graphene oxide aerogels. The kinetics of adsorption corresponded to the pseudo-second-order kinetic model. The Langmuir adsorption isotherm was suitable to describe the equilibrium adsorption process. The maximum adsorption capacity was up to 1034.3 mg/g, which indicated that anionic polyacrylamide/graphene oxide aerogels were promising adsorbents for removing dyes pollutants from aqueous solution.Entities:
Keywords: Adsorption; Aerogels; Anionic polyacrylamide; Basic fuchsin; Graphene oxide
Year: 2015 PMID： 25978557 DOI： 10.1016/j.jcis.2015.04.042
Source DB: PubMed Journal: J Colloid Interface Sci ISSN： 0021-9797 Impact factor: 8.128