Open AccessAdsorption behaviour of hydrogarnet for humic acid
Author(s) -
Hirotaka Maeda,
Yuichi Kurosaki,
Masanobu Nakayama,
Emile H. Ishida,
Toshihiro Kasuga
Publication year - 2018
Publication title -
royal society open science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 51
ISSN - 2054-5703
DOI - 10.1098/rsos.172023
Subject(s) - adsorption , humic acid , zeta potential , chemistry , chemical composition , aqueous solution , chemical engineering , composition (language) , organic chemistry , fertilizer , linguistics , philosophy , nanoparticle , engineering
Discharge of humic acid (HA) in aqueous environments is a key health and aesthetic issue. The present work investigates the use of hydrogarnet as a novel adsorbent for HA. Hydrogarnet was hydrothermally synthesized with different solvents to control the chemical composition. Hydrogarnet with three types of chemical compositions had better adsorption properties for HA than hydrogarnet with a single chemical composition. Controlling the chemical composition of hydrogarnet increased the number of hydroxyl groups and the overall binding energy of the system, leading to changes in the zeta potential. The enhancement of these adsorption properties is related to the increased numbers of hydroxyl groups on the surface and their diverse binding energies.