西南师范大学学报（自然科学版）
西南師範大學學報（自然科學版）
서남사범대학학보（자연과학판）
JOURNAL OF SOUTHWEST CHINA NORMAL UNIVERSITY
2014年
1期
7-14
,共8页
离子交换纤维%黄芩苷%热力学%动力学
離子交換纖維%黃芩苷%熱力學%動力學
리자교환섬유%황금감%열역학%동역학
anion exchange fiber%baicalin%thermodynamics%kinetics
采用自制的强碱性阴离子交换纤维对黄芩苷的吸附特性进行研究.在温度为298~333 K 和质量浓度为10.00~60.00 mg/L的范围内时，离子交换纤维对黄芩苷的吸附数据拟合符合 Langmuir和 Freundlich吸附等温方程，从而得到吸附过程中的吸附焓、吉布斯自由能和吸附熵；并且运用动边界模型描述了吸附过程的动力学，得到离子交换纤维内扩散控制交换过程的表观活化能41.08 kJ/mol、反应级数2.190、速率常数8.435×10-4及动力学方程式.
採用自製的彊堿性陰離子交換纖維對黃芩苷的吸附特性進行研究.在溫度為298~333 K 和質量濃度為10.00~60.00 mg/L的範圍內時，離子交換纖維對黃芩苷的吸附數據擬閤符閤 Langmuir和 Freundlich吸附等溫方程，從而得到吸附過程中的吸附焓、吉佈斯自由能和吸附熵；併且運用動邊界模型描述瞭吸附過程的動力學，得到離子交換纖維內擴散控製交換過程的錶觀活化能41.08 kJ/mol、反應級數2.190、速率常數8.435×10-4及動力學方程式.
채용자제적강감성음리자교환섬유대황금감적흡부특성진행연구.재온도위298~333 K 화질량농도위10.00~60.00 mg/L적범위내시，리자교환섬유대황금감적흡부수거의합부합 Langmuir화 Freundlich흡부등온방정，종이득도흡부과정중적흡부함、길포사자유능화흡부적；병차운용동변계모형묘술료흡부과정적동역학，득도리자교환섬유내확산공제교환과정적표관활화능41.08 kJ/mol、반응급수2.190、속솔상수8.435×10-4급동역학방정식.
The absorption performance of baicalin by means of self-made anion exchange fiber (IEF)has been studied.The absorption equilibrium data of baicalin on IEF within the temperature range of 298~333 K and the concentration range of 10~60 mg/L accorded with the Langmuir-type and Freundlich-type adsorption isotherm equations.Furthermore,the adsorption enthalpy,the Gibbs free energy and the en-tropy have been obtained.Besides,Moving Boundary Model has been applied to describe the absorption ki-netics of baicalin on IEF.For the dominant procedure of ion diffusion through IEF,the apparent activation energy 41.08 kJ/mol,reaction order 2.190,rate speed constant 8.435×10-4 and kinetics equation have been obtained.
