化学与生物工程
化學與生物工程
화학여생물공정
CHEMISTRY & BIOENGINEERING
2014年
9期
49-51,58
,共4页
李盛龙%谢学忠%邱彩英%周颖%郭嘉
李盛龍%謝學忠%邱綵英%週穎%郭嘉
리성룡%사학충%구채영%주영%곽가
核桃壳活性炭%CO2 活化%烟酸%缓释%Higuchi模型
覈桃殼活性炭%CO2 活化%煙痠%緩釋%Higuchi模型
핵도각활성탄%CO2 활화%연산%완석%Higuchi모형
walnut-shell activated carbon%CO2 activation%nicotinic acid%sustained release%Higuchi model
以二氧化碳（CO2）物理活化法制备了核桃壳活性炭，考察了活化温度、活化时间对核桃壳活性炭得率及烟酸吸附量的影响。以所制备的核桃壳活性炭为烟酸载体，在不同的释放介质（蒸馏水、人工胃液或人工肠液）中进行烟酸释放性能研究。结果表明，人工胃液和人工肠液能促进活性炭对烟酸的释放，其累计释放率分别达到43.96％和47.69％。核桃壳活性炭在3种不同介质中的不同释放阶段的释放过程均符合 Higuchi模型。
以二氧化碳（CO2）物理活化法製備瞭覈桃殼活性炭，攷察瞭活化溫度、活化時間對覈桃殼活性炭得率及煙痠吸附量的影響。以所製備的覈桃殼活性炭為煙痠載體，在不同的釋放介質（蒸餾水、人工胃液或人工腸液）中進行煙痠釋放性能研究。結果錶明，人工胃液和人工腸液能促進活性炭對煙痠的釋放，其纍計釋放率分彆達到43.96％和47.69％。覈桃殼活性炭在3種不同介質中的不同釋放階段的釋放過程均符閤 Higuchi模型。
이이양화탄（CO2）물리활화법제비료핵도각활성탄，고찰료활화온도、활화시간대핵도각활성탄득솔급연산흡부량적영향。이소제비적핵도각활성탄위연산재체，재불동적석방개질（증류수、인공위액혹인공장액）중진행연산석방성능연구。결과표명，인공위액화인공장액능촉진활성탄대연산적석방，기루계석방솔분별체도43.96％화47.69％。핵도각활성탄재3충불동개질중적불동석방계단적석방과정균부합 Higuchi모형。
Walnut-shell activated carbons(WSAC)were prepared by CO2 activation method.The effect of activation temperature,activation time on the yield of WSAC and adsorptive capacity of nicotinic acid were stud-ied.Then WSAC were used as carrier of nicotinic acid and the process of releasing nicotinic acid were studied. The cumulative release rate of nicotinic acid in simulated gastric fluid(SGF)and simulated intestinal fluid(SIF) were 43.96% and 47.69%,respectively.Higuchi model was found to be suitable for describing the process of WSAC releasing nicotinic acid in different media.
