林产化学与工业2012，Vol.32Issue(3)：33-37,5.
改性糠醛渣基活性炭对水中Hg2+吸附性能的研究
Adsorption Behavior of Hg2+ in Aqueous Solution Using Modified Activated Carbon from Furfural Residue
摘要
Abstract
Activated carbon prepared from furfural residue. Then the modification was carried out using sulfur dichloride reflux boiling and microwave roasting. The differences of surface functional groups before and after modification were analyzed through Boehm titration, pore size distribution and Fourier transform infrared spectroscopy (FT-IR). The results of Boehm titration showed that total acidity and the number of carboxyl and lactone increased after modification. The new peaks between 700 - 500 cm' in FT-IR spectra indicated that S-S, C-S bonds appeared on the surface of modified activated carbon. Pore size distribution showed that the microporous of activated carbon were developed after modification. This paper also studied the adsorption capacity of Hg2+ ion by modified activated carbon under different conditions such as varied concentrations, adsorption time and pH value. The final results showed that under the condition of Hg2+ 1-6 mg/L, adsorption time 180 min, and pH value 6-7, 25℃, S2C12 modified activated carbon(2.5 g carbon, 1 L solution), the removal rate of Hg was more than 93 %.关键词
糠醛渣/改性活性炭/Hg2+/吸附Key words
furfural residue/modified activated carbon/Hg2+ /adsorption分类
化学化工引用本文复制引用
项东升,秦恒飞,朱驯,陈露,曾韬,周建斌..改性糠醛渣基活性炭对水中Hg2+吸附性能的研究[J].林产化学与工业,2012,32(3):33-37,5.基金项目
国家973计划资助(2010CB732205) （2010CB732205）
国家林业局推广项目(2010-34) （2010-34）
江苏省林业三项工程项目(LYSX200705) （LYSX200705）
