Tough porous nanocomposite hydrogel for water treatment

Wu, Zhiying; Zhang, Ping; Zhang, Haihui; Li, Xiaotian; He, Yunfeng; Qin, Peiwu; Yang, Canhui

doi:10.1016/j.jhazmat.2021.126754

Cited by 67 publications

(21 citation statements)

References 45 publications

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“…It is important to increase the hydrophilicity of polymers that can result in enhanced chances of contact between functional groups and heavy metal ions . Polymer hydrogels are widely used in detecting and adsorbing heavy metals because they can undergo chemical modification and are hydrophilic in nature. , However, extreme wastewater environmental conditions such as high temperature and chemical corrosion limit the service life and activities of common polymeric adsorbents. These two factors are crucial to evaluate an adsorbent’s activity.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Sulfonated Copolyimides by Thermal Imidization for Efficient Lead Ion Adsorption from Aqueous Media

Manzoor

Kalsoom

Khan

et al. 2022

ACS Appl. Polym. Mater.

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Thermally stable, high performance sulfonated copolyimide adsorbents [OBM (ODPA+BDSA•TEA+MDA) and FBM (6FDA+BDSA•TEA+MDA)] having excellent adsorption ability were prepared via a two-step thermal imidization reaction. By the introduction of hydrophilic sulfonic acid groups into the polyimide backbone, the material's hydrophilicity was improved. The anionic sulfonate group bears strong affinity toward heavy metal ions. Improvement in polymer hydrophilicity enhances the heavy metal ion adsorption capacity due to feasible access to adsorption sites. Atomic absorption spectroscopy (AAS) was employed for heavy metal ion adsorption studies. In addition, quantum chemistry calculations using Molecular Operating Environment (MOE) software were performed, to scrutinize the experimental results for molecular surface studies. A good correlation was observed between computational and experimental findings. OBM was demonstrated to be more effective for Pb(II) removal from aqueous media with a higher q e and percent removal as compared to FBM. The synthesized sulfonated copolyimides are potential adsorbents for heavy metal ions.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Sulfonated Copolyimides by Thermal Imidization for Efficient Lead Ion Adsorption from Aqueous Media

Manzoor

Kalsoom

Khan

et al. 2022

ACS Appl. Polym. Mater.

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“…When the osmotic swelling swell is set by the strength, hydrogels of higher strength are ready to be chosen, such as double-network hydrogels, [31][32][33] nanofiberreinforced hydrogels, 34 and topological hydrogels. 35 For the promotion of swelling kinetics, connected pores 36 or microchannels via freeze-casting 37 can be constructed within the hydrogel matrix. Nonetheless, careful attention should be paid since introducing voids into the matrix generally compromises the mechanical properties.…”

mentioning

confidence: 99%

Harnessing osmotic swelling stress for robust hydrogel actuators

Zhu

Yang

2022

Soft Matter

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“…The study of experimental adsorption isotherms and kinetics, including MB as model adsorbate, revealed the inherent superior adsorption performance of the nanocomposites. The nanocomposite was associated with multiple characteristic properties such as recyclability, strong mechanical robustness, biocompatibility, etc., which further open ample space for the design and development of porous hydrogel nanocomposites for the treatment of wastewater (Wu et al 2022).…”

Section: Other Facile Techniques For the Synthesis Of Nanocompositesmentioning

confidence: 99%

Environmental remediation through wastewater management via hybrid nanocomposite matrix – A organized review

Pal

Chakroborty²,

Panda

et al. 2022

Preprint

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Pollution of water is currently a significant worry for scientific communities all over the world, and it is imperative that this problem be solved as quickly as possible. It is today recognized to be one of the most important foci of research worldwide. The present dilemma of clean, fresh waste is being addressed by the subsequent ejection of impurities from polluted water following recycling. There are several effective solutions that have been promoted as a solution to this problem. Even if the present procedures for wastewater treatment degrade a wide variety of effluents efficiently, these protocols still have some kind of restrictions. The most cutting-edge research in this area is being done on the subject of nanotechnology, which has an astounding number of potential uses, one of which is the treatment of wastewater. One of the value-added alternatives utilized for water purification by eliminating the many types of pollutants found in wastewater is the green synthesis of nanocomposites in adsorbents, magnetic separation, photocatalysts and other similar processes. Within the scope of this study, the most significant discoveries of nanocomposites to date that have been made towards the remediation of wastewater are highlighted.

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Tough porous nanocomposite hydrogel for water treatment

Cited by 67 publications

References 45 publications

Synthesis of Sulfonated Copolyimides by Thermal Imidization for Efficient Lead Ion Adsorption from Aqueous Media

Synthesis of Sulfonated Copolyimides by Thermal Imidization for Efficient Lead Ion Adsorption from Aqueous Media

Harnessing osmotic swelling stress for robust hydrogel actuators

Environmental remediation through wastewater management via hybrid nanocomposite matrix – A organized review

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