ADSORPTION PERFORMANCE OF PEO-BASED MOFs HYBRID FOAM MATERIALS ON TETRACYCLINE AND Cu<sup>2+</sup>

LI Wei; NING Yuyang; LIU Ning; GAO Mingjie

doi:10.13205/j.hjgc.202307011

Volume 41 Issue 7

Jul. 2023

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2023 > 41(7): 76-85

LI Wei, NING Yuyang, LIU Ning, GAO Mingjie. ADSORPTION PERFORMANCE OF PEO-BASED MOFs HYBRID FOAM MATERIALS ON TETRACYCLINE AND Cu2+[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(7): 76-85. doi: 10.13205/j.hjgc.202307011

Citation:

LI Wei, NING Yuyang, LIU Ning, GAO Mingjie. ADSORPTION PERFORMANCE OF PEO-BASED MOFs HYBRID FOAM MATERIALS ON TETRACYCLINE AND Cu²⁺[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(7): 76-85. doi: 10.13205/j.hjgc.202307011

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ADSORPTION PERFORMANCE OF PEO-BASED MOFs HYBRID FOAM MATERIALS ON TETRACYCLINE AND Cu²⁺

doi: 10.13205/j.hjgc.202307011

1. College of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang 100168, China;
2. Shenyang Country Garden Real Estate Development Co., Ltd., Shenyang 110003, China;
3. Liaoning Urban & Rural Construction Planning Design Institute Co., Ltd., Shenyang 110001, China

Received Date: 2023-01-19

Abstract

Abstract

A metal-organic backbone hybrid foam MIL-100(Fe)/PEO was prepared by the ice-template-freeze-drying method. X-ray diffraction, nitrogen adsorption-desorption, scanning electron microscopy, and TG-DSC techniques were used to characterize the structural morphology and elemental composition of the surface of the hybrid foam. The factors influencing the adsorption performance of the hybrid foam and the adsorption kinetics, adsorption thermodynamics and adsorption isotherm models were analyzed by adsorption experiments, and the stability of the hybrid foam separation and regeneration was studied using recycling stability tests. The results showed that MIL-100(Fe)/PEO hybrid foam had strong mechanical strength and rich porous structure, and retained the properties of MIL-100(Fe) itself. The maximum adsorption of tetracycline (TC) and Cu²⁺ by MIL-100(Fe)/PEO reached 85.02 mg/g and 87.66 mg/g at a MIL-100(Fe)/PEO dosing of 30 mg, an adsorption time of 12 h, an initial adsorption concentration of 20 mg/L, and neutral pH conditions. The adsorption process of the material followed the proposed secondary kinetics with the Langmuir isothermal adsorption model and was an exothermic, spontaneous process. The removal rates of both TC and Cu²⁺ by MIL-100(Fe)/PEO were maintained at about 70% after 8 cycles of adsorption. MIL-100(Fe)/PEO heterogeneous foam is an efficient and stable adsorbent and promising in application in the removal of mixed pollutants of tetracycline and Cu²⁺ from wastewater.
- MOFs heterogeneous foam,
- tetracycline,
- Cu²⁺,
- adsorption,
- adsorption mechanism

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References(40)

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