LIANGJian-jun,HUChun-yan,CHENShu-li,et al.Performance of Molecularly Imprinted Modified MIL100(Fe) for Bisphenol S Removal[J].China Water & Wastewater,2024,40(21):87-94.
Performance of Molecularly Imprinted Modified MIL100(Fe) for Bisphenol S Removal
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第21期
Page:
87-94
Column:
Date of publication:
2024-11-01
- Keywords:
- bisphenol S; adsorption; molecular imprinting; MIL100(Fe)
- Abstract:
- The BPS-MIP@MIL material was prepared by molecular imprinting modification of MIL100(Fe) to selectively remove bisphenol S (BPS) from water. The BPS-MIP@MIL was characterized through scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). The influences of adsorbent dosage, initial concentration of BPS, contact time, pH of the solution, and ambient temperature on the adsorption of BPS were examined. When the dosage of the adsorbent was 0.875 mg/mL, the initial concentration of BPS was 10 mg/L, the contact time was 10 min, the pH of the solution was 6, and the ambient temperature was 15 ℃, the average BPS removal efficiency and adsorption capacity of BPS-MIP@MIL reached 90.60% and 10.35 mg/g, respectively, suggesting excellent adsorption and recycling performance. The adsorption process was more in line with the pseudo-second-order kinetic model and Freundlich isotherm model, and it belonged to the spontaneous exothermic process. The selective adsorption of BPS on BPS-MIP@MIL was attributed to the imprinted cavity matching the structure of BPS, and the formation of hydrogen bonds contributed to enhancing the functional group recognition of the imprinted site.
Last Update:
2024-11-01