Lanthanide metal organic skeleton（ [email protected] ）|Rhodamine 6G modified MOF material | catalase @zif composite | MOF

Lanthanide metal organic skeleton ([email protected]）| rhodamine 6G modification MOF material | catalase @ZIF compound material

Lanthanide metal organic skeleton ([email protected]） Description of

Metal organic frameworks (MOFs) Materials are widely used in gas adsorption because of their large specific surface area and porosity , Catalysis, separation and other fields . This article will examine MOFs The application feasibility of the material in the extraction of actinides and lanthanides . Specific contents include : Preparation of metal organic framework materials UiO-66 And its carboxylic acid derivatives and their effects on actinides Th(Ⅳ) And lanthanides Eu(Ⅲ) Adsorption behavior of ; Systematically investigate the solution pH value , Time , Initial concentration , Influence of ionic strength and other factors on adsorption ; be based on FTIR,EXAFS,PALS Analyze the adsorption mechanism in detail . The main conclusions are as follows :PXRD,N_2 The adsorption / Desorption ,TGA,FTIR The characterization shows that... With regular and ordered structure has been successfully prepared UiO-66 And its carboxylic acid derivatives , And the thermal stability and hydrothermal stability of the material are good . The adsorption results show that ,UiO-66 And its carboxylic acid derivatives on Th(Ⅳ) and Eu(Ⅲ) Both have strong adsorption capacity . Adsorbed solution pH Value has a great influence , Adsorption capacity is right pH Increase and significantly increase . At the same time, the introduction of carboxyl functional groups adsorbs the material Th(Ⅳ) and Eu(Ⅲ) It has obvious promoting effect , And accelerate the adsorption rate .

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The above information comes from Xiaobian axc,2022.07.15