The voltammetric property of Ganciclovir was studied by cyclic voltammetry and differential pulse anodic stripping voltammetry at bare electrode.In the pH4.0 Britton-Robinson(BR) buffer solution,The peak potential was...The voltammetric property of Ganciclovir was studied by cyclic voltammetry and differential pulse anodic stripping voltammetry at bare electrode.In the pH4.0 Britton-Robinson(BR) buffer solution,The peak potential was at +1.13V,The peak current of Ganciclovir were linear to the concentration ranging from 9×10-6mol/L～1.35×10-4mol/L,The detection limit was 2×10-6mol/L,The determination of Ganciclovir has been investigated and the reaction mechanism of electrochemical oxidation of Ganciclovir at the electrode has been studied in this paper.展开更多
In this study,the ZIF-8 membrane(ZIF-8/PP-g-MAH)is prepared by in situ synthesis of ZIF-8 on irradiation-pretreated polymer substrates to improve the uranium adsorption performance and address the recycling problems o...In this study,the ZIF-8 membrane(ZIF-8/PP-g-MAH)is prepared by in situ synthesis of ZIF-8 on irradiation-pretreated polymer substrates to improve the uranium adsorption performance and address the recycling problems of ZIF-8 powder.The effects of pH,contact time,and uranium concentration on the adsorption of ZIF-8/PP-g-MAH were investigated.Adsorption isotherm and kinetics analysis show that ZIF-8/PP-g-MAH has a high adsorption capacity of 478.5 mg/g,which is 1.26 times higher than that of ZIF-8,and a rapid adsorption equilibrium of 120 min,which is shortened to one-third of that required for ZIF-8(360 min).The adsorption process of ZIF-8/PP-g-MAH is consistent with that of the Langmuir isotherm and pseudo-second-order dynamic model.ZIF-8/PP-g-MAH also exhibits good selectivity for uranium in simulated seawater.The high adsorption performance of ZIF-8/PP-g-MAH is attributed to its membrane structure,which improves the utilization of coordination sites,including Zn-OH,C-N,and C=N.This study provides an efficient adsorption material for rapid uranium extraction,thus promoting the development of uranium extraction technologies.展开更多
文摘The voltammetric property of Ganciclovir was studied by cyclic voltammetry and differential pulse anodic stripping voltammetry at bare electrode.In the pH4.0 Britton-Robinson(BR) buffer solution,The peak potential was at +1.13V,The peak current of Ganciclovir were linear to the concentration ranging from 9×10-6mol/L～1.35×10-4mol/L,The detection limit was 2×10-6mol/L,The determination of Ganciclovir has been investigated and the reaction mechanism of electrochemical oxidation of Ganciclovir at the electrode has been studied in this paper.
文摘In this study,the ZIF-8 membrane(ZIF-8/PP-g-MAH)is prepared by in situ synthesis of ZIF-8 on irradiation-pretreated polymer substrates to improve the uranium adsorption performance and address the recycling problems of ZIF-8 powder.The effects of pH,contact time,and uranium concentration on the adsorption of ZIF-8/PP-g-MAH were investigated.Adsorption isotherm and kinetics analysis show that ZIF-8/PP-g-MAH has a high adsorption capacity of 478.5 mg/g,which is 1.26 times higher than that of ZIF-8,and a rapid adsorption equilibrium of 120 min,which is shortened to one-third of that required for ZIF-8(360 min).The adsorption process of ZIF-8/PP-g-MAH is consistent with that of the Langmuir isotherm and pseudo-second-order dynamic model.ZIF-8/PP-g-MAH also exhibits good selectivity for uranium in simulated seawater.The high adsorption performance of ZIF-8/PP-g-MAH is attributed to its membrane structure,which improves the utilization of coordination sites,including Zn-OH,C-N,and C=N.This study provides an efficient adsorption material for rapid uranium extraction,thus promoting the development of uranium extraction technologies.
