Adsorption of arsenic using high surface area magnetites.
Magnetites (MEBWx) were prepared by precipitation in 1-butanol/water mixtures of various mole ratios of 1-butanol to water. It was found that the magnetites prepared in the mixture with high mole ratio of 1-butanol to water have high specific surface area. The adsorption isotherms of As(III) and As(V) with the magnetites at 303 K fitted the Langmuir model well. The adsorption capacities of the magnetite prepared in the mixtures were higher than those of the magnetite prepared without 1-butanol. Their adsorption capacities increased with increasing specific surface area.
Ohe
Kaoru
K
Department of Applied Chemistry, University of Miyazaki, 1-1 Gakuenkibanadai-Nishi, Miyazaki 889-2192, Japan.
Oshima
Tatsuya
T
Baba
Yoshinari
Y
D000327:Adsorption; D001151:Arsenic / Q000032:analysis / Q000737:chemistry*; D052203:Ferrosoferric Oxide / Q000737:chemistry*; D013499:Surface Properties; D014867:Water / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000737:chemistry*; D018508:Water Purification / Q000379:methods*
D014874:Water Pollutants, Chemical; D014867:Water; D001151:Arsenic; D052203:Ferrosoferric Oxide