文档介绍：ic Hydrogels for Removal of Humic Acid
from Aqueous Environment

Pinhua RAO Irene M. C. LO
School of Chemistry and Chemical Engineering Department of Civil and Environmental Engineering, The
Shanghai University of Engineering Science, Hong Kong University of Science and Technology, Hong
Shanghai 201620, China Kong, China
raopinhua@

Abstract—ic cationic hydrogels (MCH) were synthesized carbon, natural mineral, anion exchange resin etc.) and their
and its removal efficiency and mechanisms to humic acid (HA) effectiveness removing HA have been evaluated. Generally,
from the aqueous environment were studied in this paper. MCH effective separation and regeneration of adsorbents with high
synthesized had a low swelling ratio and the strong ism, adsorption capacity and low cost are considered to be several
yielding extra potential for recycle and reuse of hydrogels. XRD important criteria for the selectivity of adsorbents.
analysis and dissolution experimental results indicated that γ-
Fe2O3 was stably embedded into hydrogels. Batch studies On the other hand, hydrogel recently attracted much interest
indicated that the removal of HA by MCH was effective. due to its many unique physicochemical properties and have
Electrostatic adsorption was considered to be main removal been used for removal anic pollutants and heavy metals
mechanisms of HA