Graphene oxide biopolymer aerogels for the removal of lead from drinking water using a novel nano-enhanced ion exchange cascade

Bloor, J.M.; Handy, Richard D.; Awan, S.A.; Jenkins, David

doi:10.1016/j.ecoenv.2020.111422

Cited by 40 publications

(16 citation statements)

References 37 publications

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“…Children are more vulnerable to contamination caused by lead than adults, and excessive intake of lead can cause permanent brain damage in children . Metal ions discharged from untreated industries have high mobility in water and can easily penetrate groundwater …”

Section: Study On Adsorption Of Heavy Metal Ions By Chelating Resinmentioning

confidence: 99%

“…29 Metal ions discharged from untreated industries have high mobility in water and can easily penetrate groundwater. 30 Yuan et al 31 synthesized a series of chelating resins using polyethylenimine, methoxyphenyl, and methylene (POMen) units by varying the length of the spacers in the side chains. The side chains were attached to the polyethylenimine main chain in a spatially ordered manner.…”

Section: Study On Adsorption Of Heavy Metal Ions By Chelating Resinmentioning

confidence: 99%

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Advances in Chelating Resins for Adsorption of Heavy Metal Ions

Chu

Feng

Liu

et al. 2022

Ind. Eng. Chem. Res.

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Heavy metal ion pollution in water and soil is a formidable environmental problem. Due to their desired heavy metal capture capacity and excellent chemical and physical stability, resin chelating ligands have been widely used in heavy metal adsorption. In this Review, we outline the latest progress in chelating resin adsorbents toward heavy metals. This paper reviews the methods of selectively separating the target ions in various solutions and screens the excellent performances of chelating resins; the types and synthesis methods of chelating resins are also summarized. Different adsorption mechanisms existing between chelating resins and heavy metal ions are summarized, and the influencing factors of the adsorption processes are analyzed. On this basis, we propose the opportunities, challenges, and prospects faced by researchers studying chelating resin materials in the adsorption of heavy metals, and the reasonable design of advanced chelated resin-based adsorption systems should achieve an eco-friendly and sustainable environment.

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Section: Study On Adsorption Of Heavy Metal Ions By Chelating Resinmentioning

confidence: 99%

Section: Study On Adsorption Of Heavy Metal Ions By Chelating Resinmentioning

confidence: 99%

Advances in Chelating Resins for Adsorption of Heavy Metal Ions

Chu

Feng

Liu

et al. 2022

Ind. Eng. Chem. Res.

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“…Adsorbent systems at a lower technology readiness level are also being tested. For example, graphene oxide aerogels have been developed for removal of soluble lead [37]. However, there are general risks associated with POU treatment processes located in customer premises.…”

Section: Point Of Use Treatmentmentioning

confidence: 99%

Lead in drinking water – An ongoing public health concern?

Jarvis

Fawell

2021

Current Opinion in Environmental Science & Health

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“…Due to these factors, SA becomes a suitable crosslinker. The hydrogel system also has the support of Zn 2+ because SA is a crosslinker between Na + and alginate radicals; so to create a precursor gel system, the binding is usually based on the exchange of Na + ions with di‐/trivalent ions such as Zn 2+ , Fe 3+ , etc 15,16 . Because of its popularity and low toxicity, zinc nitrate is used as a source of Zn 2+ ions, with Zn 2+ acting as both a networking substance (Fig.…”

Section: Introductionmentioning

confidence: 99%

“…The hydrogel system also has the support of Zn 2+ because SA is a crosslinker between Na + and alginate radicals; so to create a precursor gel system, the binding is usually based on the exchange of Na + ions with di-/ trivalent ions such as Zn 2+ , Fe 3+ , etc. 15,16 Because of its popularity and low toxicity, zinc nitrate is used as a source of Zn 2+ ions, with Zn 2+ acting as both a networking substance (Fig. 1) and a doping agent as the salt after pyrolysis still retained ZnO, forming a ZnOdoped CA derived from a mixture of bagasse cellulose/SA/zinc nitrate (Zn-BCA).…”

Section: Introductionmentioning

confidence: 99%

Zinc oxide‐doped carbon aerogel derived from bagasse cellulose/sodium alginate/zinc nitrate composite for dye adsorption, storage energy and electrochemical sensing

Lam,

Vy,

Duyen

et al. 2023

J of Chemical Tech & Biotech

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Following the trend of green and sustainable development, multi‐application materials utilizing biomass waste have been developed, leading that trend is carbon aerogel (CA). In this study, zinc oxide‐doped CA was synthesized from bagasse cellulose (Zn‐BCA) through simple processes: Cross‐linking to form a sol‐gel system, freeze‐drying, and pyrolysis. To synthesize suitable materials, precursor and crosslinking ratios, the content of Zn2+, and pyrolysis temperature in N2 were investigated. The characteristics of ZnO were investigated through modern methods: Scanning electron microscopy (SEM), Raman spectroscopy, X‐ray diffraction, Fourier‐transform infrared spectroscopy, and energy‐dispersive X‐ray spectroscopy. The dye adsorption capacity of Zn‐BCA was evaluated through the UV‐Vis method. Furthermore, the electrochemical properties are shown through cyclic voltammetry (CVol), galvanostatic charge‐discharge (GCD), electrochemical impedance spectroscopy (EIS) results, and glucose sensing results were obtained through linear sweep voltammetry. Zn‐BCA shows potential for multiple applications with crystal violet pigment adsorption capacity up to 39 mg/g, specific capacitance reaching 164 F/g, and glucose sensing capabilities.This article is protected by copyright. All rights reserved.

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Graphene oxide biopolymer aerogels for the removal of lead from drinking water using a novel nano-enhanced ion exchange cascade

Cited by 40 publications

References 37 publications

Advances in Chelating Resins for Adsorption of Heavy Metal Ions

Advances in Chelating Resins for Adsorption of Heavy Metal Ions

Lead in drinking water – An ongoing public health concern?

Zinc oxide‐doped carbon aerogel derived from bagasse cellulose/sodium alginate/zinc nitrate composite for dye adsorption, storage energy and electrochemical sensing

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