华侨大学学报（自然科学版）2009，Vol.30Issue(6)：677-680,4.
Nano-HCO吸附剂的制备及其除As(Ⅲ)性能
Preparation of Nano-Hydrous Ceric Oxide and Its Adsorption Characteristics of Arsenite
摘要
Abstract
Nano-sized hydrous ceric oxide (Nano-HCO) with an average diameter size of 70 ran and specific surface area 212 m~2·g~(-1) were prepared using sol-precipitation method in conjunction with ultrasonic dispersion.At an initial As(Ⅲ ) concentration of 10 mg·L~(-1),solution pH range 4~10,adsorbent dose of 1.0 g·L~(-1),a final concentration of As( Ⅲ ) could be decreased below 0.01 mg·L~(-1),within 2 h.The isotherms fit well in the Langmuir model of adsorption,and with the studied pH conditions,the adsorption capacity of As(Ⅲ) on Nano-HCO was increased by 29% to 141% compared with the HCO samples prepared without ultrasonic dispersion treatment.The extent of As(Ⅲ) adsorption was enhanced by increasing ambient temperature.关键词
纳米级水合氧化铈/As(Ⅲ)/地热水/吸附等温线Key words
nano-sized hydrous eerie oxide/As(Ⅲ)/geothermal water/adsorption isotherm分类
化学化工引用本文复制引用
李秋蓉,欧阳通,张萍,种珊..Nano-HCO吸附剂的制备及其除As(Ⅲ)性能[J].华侨大学学报（自然科学版）,2009,30(6):677-680,4.基金项目
福建省自然科学基金计划资助项目(D0510005) （D0510005）
厦门市科技计划项目(3502Z20083001) （3502Z20083001）
