Inorganic Chemicals Industry >
Study on preparation of covalent organic framework materials and their adsorption properties for dyes
Received date: 2022-04-16
Online published: 2023-01-17
The two-dimensional（2D） covalent organic framework（DMTP-TAPB COF） materials were prepared via the solvothermal method.The structure，morphology，and properties of as-prepared materials were studied in detail through X-ray diffraction（XRD），scanning electron microscope（SEM） and thermogravimetric analyzer（TGA）.Then，the adsorption capacity of the prepared COF materials for indigo carmine（IC） dye was studied.The effects of adsorption time，pH values and initial concentrations of IC on the adsorption performance were investigated.The experimental results showed that as-prepared 2D COF materials had good crystallinity and uniform morphology.Meanwhile，the DMTP-TAPB COF had a higher adsorption capacity（330.5 mg/g） and favourable removal efficiency（84.5%） for IC.Moreover，the adsorption process of covalent organic framework DMTP-TAPB COF for indigo carmine was combined with the pseudo-second-order kinetics model and the Langmuir adsorption model.The study showed that COF materials had broad application prospects as adsorbent for pollutants.
Key words： covalent organic framework; indigo carmine; absorption; water treatment
Xiu PEI , Yaming LI . Study on preparation of covalent organic framework materials and their adsorption properties for dyes[J]. Inorganic Chemicals Industry, 2023 , 55(1) : 106 -111 . DOI: 10.19964/j.issn.1006-4990.2022-0205
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