环境工程学报
環境工程學報
배경공정학보
CHINESE JOURNAL OF ENVIRONMENTAL ENGINEERING
2010年
2期
297-300
,共4页
苏秀霞%诸晓锋%程磊%郝明德%李仲谨%杨祥龙
囌秀霞%諸曉鋒%程磊%郝明德%李仲謹%楊祥龍
소수하%제효봉%정뢰%학명덕%리중근%양상룡
黄原胶%辐射接枝%吸附%Cd~(2+)
黃原膠%輻射接枝%吸附%Cd~(2+)
황원효%복사접지%흡부%Cd~(2+)
xanthan gum%irradiation graft%adsorption%Cd~(2+)
利用~(60)Co-γ为辐射源,在氮气保护下对黄原胶(XG)和丙烯酰胺(AM)进行共辐射,制备黄原胶/丙烯酰胺接枝共聚物(XG-g-AM).研究了XG-g-AM对Cd~(2+)的吸附行为,利用红外光谱(IR)、热重分析(TGA)、X射线衍射仪(XRD)对接枝共聚物及吸附产物进行表征.结果表明:XG-g-AM对Cd~(2+)离子吸附等温线符合Freundlich等温方程,吸附Cd~(2+)使XG-g-AM结晶结构被进一步破坏,结晶度下降.25℃下,Cd~(2+)浓度20 mmol/L时,吸附时间100 min,平衡吸附量为0.835mmol/g.
利用~(60)Co-γ為輻射源,在氮氣保護下對黃原膠(XG)和丙烯酰胺(AM)進行共輻射,製備黃原膠/丙烯酰胺接枝共聚物(XG-g-AM).研究瞭XG-g-AM對Cd~(2+)的吸附行為,利用紅外光譜(IR)、熱重分析(TGA)、X射線衍射儀(XRD)對接枝共聚物及吸附產物進行錶徵.結果錶明:XG-g-AM對Cd~(2+)離子吸附等溫線符閤Freundlich等溫方程,吸附Cd~(2+)使XG-g-AM結晶結構被進一步破壞,結晶度下降.25℃下,Cd~(2+)濃度20 mmol/L時,吸附時間100 min,平衡吸附量為0.835mmol/g.
이용~(60)Co-γ위복사원,재담기보호하대황원효(XG)화병희선알(AM)진행공복사,제비황원효/병희선알접지공취물(XG-g-AM).연구료XG-g-AM대Cd~(2+)적흡부행위,이용홍외광보(IR)、열중분석(TGA)、X사선연사의(XRD)대접지공취물급흡부산물진행표정.결과표명:XG-g-AM대Cd~(2+)리자흡부등온선부합Freundlich등온방정,흡부Cd~(2+)사XG-g-AM결정결구피진일보파배,결정도하강.25℃하,Cd~(2+)농도20 mmol/L시,흡부시간100 min,평형흡부량위0.835mmol/g.
Xanthan gum-graft-Acrylamide( XG-g-AM) was prepared using ~(60)Co-γ rays radiation induced graft of acrylamide (AM) onto xanthan gum( XG) , with nitrogen protection. Adsorption behavior of XG-g-AM for Cd~(2+) was investigated. The structure of the graft copolymer and its adsorption product were characterized by IR, TGA, XRD. The result shows that the adsorption behavior of the XG-g-AM for Cd~(2+) is adapted to Freundli-ch adsorption isotherm equation. Crystal structure of XG-g-AM was destroyed after adsorbing Cd~(2+) , the crystal-linity of XG-g-AM decrease. Under 25℃, the concentration of Cd~(2+) was 20 mmol/L, the equilibrium absorption amount of XG-g-AM for Cd~(2+) ion was 0. 835 mmol/g when the absorption time was 100 minutes.
