title: [Ethanol-induced influence on the structure and arsenate adsorption of resin-based nano-hydrated ferric oxide].
abstract: Here the role of ethanol in the synthesis of a new nanocomposite (D201-HFO) was evaluated in terms of its structure variation and arsenate adsorption. Results indicated that the ethanol-induced procedure improved the dispersion of HFO inside the polymer host D201 and increased the HFO sorption capacities towards arsenate by 20%. Also, the ethanol-induced procedure resulted in the increase of pore size, pore volume, and specific surface area of D201-HFO by 52%, 65% and 28%, respectively. Nevertheless, ethanol rinsing did not affect the mechanical strength of D201-HFO and the crystal type of the immobilized HFO. Little effects of the ethanol process was observed on the pH and co-anion dependent adsorption of arsenate. Furthermore, the ethanol step posed insignificant influence on the fix-bed adsorption and the repeated use of the adsorbent. The results showed that the ethanol procedure exerted little influence on the sorption properties of D201-HFO from the viewpoint of practical application and thus, it could not be included.
authors.affiliation: State Key Laboratory of Pollution Control & Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China. xiaoqihappy77@126.com
authors.forename: Qi
authors.initials: Q
authors.lastname: Wan
authors.forename: Xu-Chun
authors.initials: XC
authors.lastname: Li
authors.forename: Bing-Cai
authors.initials: BC
authors.lastname: Pan
mesh_terms: D000327:Adsorption; D001149:Arsenates / Q000737:chemistry*; D000431:Ethanol / Q000737:chemistry*; D005290:Ferric Compounds / Q000737:chemistry*; D053761:Nanocomposites / Q000737:chemistry*; D011108:Polymers
chemical_list: D001149:Arsenates; D005290:Ferric Compounds; D011108:Polymers; C000499:ferric oxide; D000431:Ethanol; C025657:arsenic acid