Polyamide foams prepared by solution foaming approach and their adsorption property towards bisphenol A

Yang, Kai; Li, Suyuan; Ma, Shuo; Pan, Kai; Deng, Jianping

doi:10.1016/j.micromeso.2021.111626

Cited by 6 publications

(1 citation statement)

References 49 publications

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“…Polymer‐based adsorbents have been widely investigated for removing of organic contaminants because of their practical applicability and easy‐controlled physiochemical features. Various polymers such as polystyrene (Li et al, 2022; Liu et al, 2021; Wang et al, 2019; Yuan et al, 2022; Zhu et al, 2022), polypropylene (Wu et al, 2022), polyethersulfone (Qiu et al, 2016; Wei et al, 2013), porphyrinic (Lee et al, 2021), and polyamide (Yang et al, 2022) have been used as adsorbents for BPA removal. Yuan et al (Yuan et al, 2022) prepared polystyrene‐based hypercrosslinked resin and found that the composite had high adsorption affinity toward different kinds of bisphenols.…”

Section: Introductionmentioning

confidence: 99%

Sulfonated polyHIPE/nanoclay composites with hierarchically porous structure for efficient removal of endocrine‐disrupting hormone from aqueous solution

Şimşek

Mert

Sözbir

et al. 2023

Water Environment Research

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The objective of this study is the synthesis of macroporous polystyrene‐based polyHIPE/nanoclay (p[HIPE]/NClay) monoliths and post‐functionalization of the monoliths through sulfonation to improve the structural and textural properties as well as adsorption performances toward bisphenol A (BPA) as an endocrine‐disrupting chemical. The adsorption tests were conducted with raw p(HIPE), nanoclay, p(HIPE)/NClay, and sulfonated samples in order to obtain insights in the adsorption mechanism. The synergy between clay embedding and sulfonation resulted in higher BPA removal performance of p(HIPE)/NClay@S sample (96% removal) when compared with the raw polyHIPE (52% removal). The adsorption efficiency was mainly attributed to the functionality, followed by porosity and hydrophilicity of the as‐synthesized materials. Considering the roles of hydrophobic, hydrogen‐bonding, and π–π stacking interactions, the adsorption mechanism was discussed by using X‐ray photoelectron spectroscopy (XPS) analysis. Moreover, the experimental parameters including solution pH, co‐existing anions, ionic strength, and temperature were investigated in detail. The adsorption data were fitted to isotherm and kinetic models. The composite adsorbents also displayed excellent regeneration and stability until the fifth cycle. This research provides fresh insights into the effective adsorptive removal of endocrine‐disrupting hormones by sulfonated porous nanoclay‐polymer monoliths. Practitioner Points Sulfonated p (HIPE)/nanoclay monoliths were prepared. Bisphenol A adsorption mechanism was explored in detail. Nanoclay incorporation and sulfonation greatly enhanced the removal efficiency. The composite could be used until the fifth cycle.

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