Removal of various pollutants from wastewaters using an efficient and degradable hypercrosslinked polymer

Yang, Zujin; Wu, Guifang; Li, Qiuru; Ai, Hongxia; Yao, Xingdong; Ji, Hongbing

doi:10.1080/01496395.2020.1745239

Cited by 28 publications

(15 citation statements)

References 43 publications

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“…(1) by cross-linking with proper bi-or polyfunctional reagents, such as diepoxy compounds, diisocyanates, dior polycarboxylic acids, and fluoroterphthalonitriles (Wiedenhof et al 1969;Crini et al 1998;Yamasaki et al 2008;Zhao et al 2009;Alsbaiee et al 2016;Xu et al 2019;Yang et al 2020); Fig. 3 shows a cyclodextrin polymer obtained by a cross-linking reaction between cyclodextrin molecules and a cross-linking agent;…”

Section: Removal Of Pharmaceuticals Using Cyclodextrin Bead Polymersmentioning

confidence: 99%

Removal of emerging contaminants from wastewater using advanced treatments. A review

et al. 2022

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The rise of emerging contaminants in waters challenges the scientific community and water treatment stakeholders to design remediation techniques that are simple, practical, inexpensive, effective, and environmentally friendly. Emerging contaminants include antibiotics, hormones, illicit drugs, endocrine disruptors, cosmetics, personal care products, pesticides, surfactants, industrial products, microplastics, nanoparticles, and nanomaterials. Removing those contaminants is not easy because classical wastewater treatment systems are not designed to handle emerging contaminants, and contaminants often occur as traces in complex organo-mineral mixtures. Here, we review advanced treatments for the removal of emerging contaminants in wastewater, with focus on adsorption-oriented processes using non-conventional adsorbents such as cyclo-dextrin polymers, metal-organic frameworks, molecularly imprinted polymers, chitosan, and nanocellulose. We describe biological-based technologies for the degradation and removal of emerging contaminants. Then, we present advanced oxida-tion processes as the most promising strategies because of their simplicity and efficiency.

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Section: Removal Of Pharmaceuticals Using Cyclodextrin Bead Polymersmentioning

confidence: 99%

Removal of emerging contaminants from wastewater using advanced treatments. A review

et al. 2022

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“…by cross-linking with proper bi-or polyfunctional reagents, such as diepoxy compounds, diisocyanates, di-or polycarboxylic acids, fluoroterphthalonitriles, etc. (Wiedenhof et al 1969;Crini et al 1998;Yamasaki et al 2008;Zhao et al 2009;Alsbaiee et al 2016;Xu et al 2019;Yang et al 2020); Fig. 1.5 shows a cylodextrin polymer obtained by a cross-linking reaction between cyclodextrin molecules and a cross-linking agent; 2. by copolymerization of polymerizable cyclodextrin derivatives with acrylic or vinyl monomers (Wimmer et al 1992;Janus et al 1999;He et al 2012); 3. or by grafting on a macromolecular support such as chitosan, cellulose, alginate and silica (Crini et al 1995;Sakairi et al 1999;Aoki et al 2007;Chung and Chen 2009;Kono et al 2013;Omtvedt et al 2019;Yamasaki et al 2017).…”

Section: Cyclodextrin Bead Polymersmentioning

confidence: 99%

Remediation of Emerging Contaminants

Morin‐Crini

Lichtfouse

Fourmentin

et al. 2021

Environmental Chemistry for a Sustainable World

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“…Thus, it is necessary to introduce some special groups on the polymer skeleton via chemical modification to improve the hydrophilicity of the polymer and the adsorption selectivity of pollutants in wastewater. [6] It has been reported that heteroatoms or special functional groups are beneficial for adsorbents to remove organic pollutants and heavy metal ions from wastewater. [9] In recent years, thanks to the development of the synthesis strategy of hyper-crosslinked polymers, the source of raw materials has been greatly enriched, and the synthesis efficiency has been significantly improved, showing huge practical application value.…”

Section: Introductionmentioning

confidence: 99%

“…However, the insufficient hydrophilicity of the synthesized HCPs caused by the inherent organic framework greatly weakens their pollution removal performance in water. Thus, it is necessary to introduce some special groups on the polymer skeleton via chemical modification to improve the hydrophilicity of the polymer and the adsorption selectivity of pollutants in wastewater [6] . It has been reported that heteroatoms or special functional groups are beneficial for adsorbents to remove organic pollutants and heavy metal ions from wastewater [9]…”

Section: Introductionmentioning

confidence: 99%

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Weaving Hyper‐crosslinked Polymer from Alkaline Lignin for Adsorption of Organic Dyes from Wastewater

Tang

et al. 2022

ChemistrySelect

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Lignin is widely found in nature and attracts increasing concern as the renewable carbon material. In this work, hyper-crosslinked lignin was successfully prepared and applied for adsorbing dyes such as rhodamine B (RhB), methylene blue (MB) and Congo Red (CR) in wastewater. The characteristics of the alkaline lignin and hyper-crosslinked lignin were identified by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and N 2 adsorption and desorption measurements. The results show that the hyper-crosslinked lignin is composed of uniform and porous nanoparticles with smaller size as compared to the sheet and-block structure of alkaline lignin. The specific surface area and pore structure of the hypercrosslinked lignin have been greatly optimized, while retaining the functional groups on the surface of the alkali lignin. The Brunner-Emmet-Teller (BET) surface area of the hyper-crosslinked lignin reaches up to 402.8 m 2 ⋅ g À 1 , and the adsorption capacity of RhB is up to 1332 mg ⋅ g À 1 . The isotherm model and thermodynamic results indicate that the adsorption process conforms to the Langmuir model, mainly showing a singlelayer spontaneous chemical endothermic process. In addition, HCPÀ L showed good selective adsorption performance for cationic dyes with the adsorption amounts of 228 mg ⋅ g À 1 for MB, while that of the anionic dye CR (89 mg ⋅ g À 1 ) was comparatively low. The adsorption mechanism was hydrogen bonding and π-π stacking in addition to the electrostatic effect caused by the negative charge on the surface of HCPÀ L.

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Removal of various pollutants from wastewaters using an efficient and degradable hypercrosslinked polymer

Cited by 28 publications

References 43 publications

Removal of emerging contaminants from wastewater using advanced treatments. A review

Removal of emerging contaminants from wastewater using advanced treatments. A review

Remediation of Emerging Contaminants

Weaving Hyper‐crosslinked Polymer from Alkaline Lignin for Adsorption of Organic Dyes from Wastewater

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