A New Strategy to Synthesis of Porous Polymers from Plastic Waste for Highly Efficient Adsorption of Rhodamine B, Malachite Green and I2 Vapor

Zhiguo Wang, Chunlin Song, Yuemeng Qiao,Yue Wu,Zhizhou Yang,Haifeng Lu,Anhou Xu,Sheng Gao, Fang Liu

Polymer（2023）SCI 2区

Shandong Acad Sci | Key Laboratory of Special Functional Aggregated Materials | Shandong Key Laboratory of Fluorine Chemistry and Chemical Engineering Materials | Shandong Acad Agr Sci

Cited 9|Views21

Abstract

Plastic waste has been becoming a severe environmental issue. Developing low-cost and facile strategy to converse them into the high value-added materials for remediation of ecosystem is a big challenge. In this manuscript, Polystyrene foam waste (PSF) was employed as starting material to react with the different mass ratio of cyanuric chloride (CC) to synthesize a series of hyper-cross-linked polymers (HPPCs). HPPCs were porous polymers and mainly composed of micro-pores and meso-pores. Their apparent surface areas (SBET) and pore volumes were in range of 622.9 +/- 11 and 719.2 +/- 15 m2 g-1, 0.87 and 1.01 cm3 g-1, respectively. The SBET and pore volume could be tuned by the mass ratio of PSF and CC. Adsorption experiments revealed that HPPC-3 showed high adsorption quantities of rhodamine B (RhB) and malachite green (MG) with the maximum adsorption capacities of 2354.0 +/- 60.8 and 1331.9 +/- 30.6 mg g-1, respectively. The adsorption isotherm and kinetics data suggested that the adsorption behaviors of RhB and MG on HPPC-3 followed the Langmuir models and pseudo-second-order models. Additionally, HPPC-3 displayed high adsorption capacity of iodine vapor up to 188 +/- 3.2 wt%. Therefore, this work suggested a new approach for converting plastic waste into the promising adsorbent for removal of dyes and radioactive iodine vapor from contaminated ecosystem.

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Key words

Porous Materials,Polymer of Intrinsic Microporosity (PIMs),Hydrogen Purification,Polymeric Membranes,Porous

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