Fabrication of copper coated polymer foam and their application for hexavalent chromium removal

Li, Chunchuang; Du, Zongliang; Zou, Wei; Li, Hangquan; Zhang, Chen

doi:10.1016/j.reactfunctpolym.2015.02.001

Cited by 12 publications

(8 citation statements)

References 24 publications

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“…PH adsorptions on the orders of tens to hundreds of milligrams per gram sorbent have been found for dyes such as Para Red and Sudan, Congo Red, Methylene Blue, ,, and Turquoise Blue X-GB . Similar PH adsorbances were found for ions such as nickel, chromium, , cadmium, , copper, , lead, and NO 3 – . The advantages of PHs for such applications included a mass transfer coefficient similar to those of packed beds (∼17600 m 2 /m 3 ), but with a much lower pressure drop, and high column capacities with good reproducibility, stability, and durability (∼200 repetitions without measurable loss of performance) …”

Section: Applicationsmentioning

confidence: 75%

“…The hydrolysis of acrylate-based PHs has often been used to provide the foundation for postsynthesis functionalization. − PHs based on tert -butyl acrylate were hydrolyzed to yield carboxyl groups, , while other acrylate-based PHs underwent postsynthesis functionalizations using a variety of methods including click reactions and functional coatings. ,, Functionalization with amine groups has often been used as the foundation for further surface modifications, especially with acrylate-based PHs, and was used to enhance the adsorption of CO 2 , dyes, and metal ions. , PHs based on hydroxyethyl methacrylate (HEMA) were functionalized with amines using two steps: (1) a better leaving group than that found in HEMA was generated through either halodehydroxylation (Cl, Br) or tosylation; (2) the generated leaving group was functionalized with an amine nucleophile. PHs based on GMA were easily functionalized with amine groups (e.g., 1,4-ethylenediamine) in a one-step modification.…”

Section: Postsynthesis Functionalizationmentioning

confidence: 99%

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Emulsion Templating: Porous Polymers and Beyond

et al. 2019

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Emulsion templating presently extends far beyond the original hydrophobic porous polymers that were synthesized within surfactant-stabilized water-in-oil high internal phase emulsions (HIPEs) by using free radical polymerization. This Perspective presents the extraordinary versatility of emulsion templating that has emerged with the growing numbers of HIPE systems, HIPE stabilization strategies, monomers, polymerization chemistries, multicomponent materials, and surface functionalities. Emulsion templating now goes far beyond "porous polymers" by encompassing the encapsulation of aqueous solutions, ionic melts, and organic liquids as well as by encompassing porous carbons and porous inorganics. Herein, we present comprehensive pictures of the state-of-the-art, of the prospective large-scale and niche applications, of the advantages and challenges for industrial scale-up, and of the crucial directions that should be pursued in future work. We demonstrate that it is emulsion templating's considerable and versatile parameter space that offers opportunities for pioneering work, breakthrough innovations, scientific/engineering achievements, and industrial adoption.

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Section: Applicationsmentioning

confidence: 75%

Section: Postsynthesis Functionalizationmentioning

confidence: 99%

Emulsion Templating: Porous Polymers and Beyond

et al. 2019

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“…The adsorption experiments showed that the Cr(VI) adsorption capacity (111.1 mg/g) of nano zerovalent copper immobilized on to pistachio shell powder (ZVC@PS) was significantly higher than pistachio shell powder (27.95 mg/g) (Banerjee et al 2018), polymer foam (PEI-PAA) immobilized zero-valent copper (3.77 mg/g) (Li et al 2015a) and immobilized zerovalent Fe(0) (50 mg/g) used for the treatment of Cr(VI) from wastewater(Shi et al…”

Section: Discussionmentioning

confidence: 99%

“…Recently Cu/Cu2O nanoparticles have found application in electrochemical sensing (Devnani et al 2019;Li et al 2018) and adsorption of heavy metal (Iqbal et al 2019). Cu/Fe bimetallic nanocomposite materials have been found suitable for remediation of Cr(VI) (Jia et al 2019;Jiang et al 2018;Qu et al 2021;Zhu et al 2016;Zhu et al 2018), but very few literature reports are known for utilization of zerovalent copper as Cr(VI) adsorbent (Li et al 2015a;Wu et al 2009). However, CuNPs tend to agglomerate during synthesis and thus the surface area and the activity of the CuNPs is reduced to a large extent (Huang et al 2012;Li et al 2015a;Li et al 2015b).…”

Section: Introductionmentioning

confidence: 99%

Synergistic effect of pistachio shell powder and nano-zerovalent copper for chromium remediation from aqueous solution

Kumar

Brar

Babu

et al. 2021

Environ Sci Pollut Res

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Pistachio shell powder supported nano-zerovalent copper (ZVC@PS) material prepared by borohydride reduction, was characterized using SEM, FTIR, XRD, TGA/DTA, BET, and XPS. SEM, XRD, and XPS revealed the nanozerovalent copper to consist of a core-shell structure with CuO shell and Cu(0) core with a particle size of 40-100 nm and spherical morphology aggregated on PS biomass. ZVC@PS was found out to contain 39% (w/w %) Cu onto the pistachio shell biomass. Batch sorption of Cr(VI) from the aqueous using ZVC@PS were studied, and was optimized for dose (0.1-0.5 g/L), initial Cr(VI) concentration(1-20 mg/L) and pH (2-12). Optimized conditions were 0.1 g/L doses of sorbent and pH=3 for Cr(VI) adsorption. Langmuir and Freundlich adsorption isotherm models fitted well to the adsorption behavior of ZVC@PS for Cr(VI) with a pseudo-second-order kinetic behavior.ZVC@PS (0.1g/L) exhibits qmax for Cr(VI) removal up to 111.1 mg/g. XPS and other spectroscopic evidence suggest the adsorption of Cr(VI) by pistachio shell powder, coupled with reductive conversion of Cr(VI) to Cr(III) by ZVC particles to produce a synergistic effect for the efficient remediation of Cr(VI) from aqueous medium.

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“…Cu/Fe bimetallic nanocomposite materials have been found suitable for remediation of Cr(VI) (Jia et al 2019;Jiang et al 2018;Qu et al 2021;Zhu et al 2016;Zhu et al 2018), but very few literature reports are known for utilization of zerovalent copper as Cr(VI) adsorbent (Li et al 2015a;Wu et al 2009). However, CuNPs tend to agglomerate during synthesis and thus the surface area and the activity of the CuNPs is reduced to a large extent (Huang et al 2012;Li et al 2015a;Li et al 2015b). Thus, to prevent agglomeration, stabilizers and immobilizers can be used in-situ during the preparation of the nanoparticles, to ensure dispersion of the nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Effect of Pistachio Shell Powder and Nano-Zerovalent Copper for Chromium Remediation from Aqueous Solution

Kumar

Brar

Babu

et al. 2021

Preprint

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Pistachio shell powder supported nano-zerovalent copper (ZVC@PS) material prepared by borohydride reduction, was characterized using SEM, FTIR, XRD, TGA/DTA, BET, and XPS. SEM, XRD, and XPS revealed the nano-zerovalent copper to consist of a core-shell structure with CuO shell and Cu(0) core with a particle size of 40–100 nm and spherical morphology aggregated on PS biomass. ZVC@PS was found out to contain 39% (w/w %) Cu onto the pistachio shell biomass. Batch sorption of Cr(VI) from the aqueous using ZVC@PS were studied, and was optimized for dose (0.1–0.5 g/L), initial Cr(VI) concentration(1–20 mg/L) and pH (2–12). Optimized conditions were 0.1 g/L doses of sorbent and pH = 3 for Cr(VI) adsorption. Langmuir and Freundlich adsorption isotherm models fitted well to the adsorption behavior of ZVC@PS for Cr(VI) with a pseudo-second-order kinetic behavior. ZVC@PS (0.1g/L) exhibits qmax for Cr(VI) removal up to 111.1 mg/g. XPS and other spectroscopic evidence suggest the adsorption of Cr(VI) by pistachio shell powder, coupled with reductive conversion of Cr(VI) to Cr(III) by ZVC particles to produce a synergistic effect for the efficient remediation of Cr(VI) from aqueous medium.

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Fabrication of copper coated polymer foam and their application for hexavalent chromium removal

Cited by 12 publications

References 24 publications

Emulsion Templating: Porous Polymers and Beyond

Emulsion Templating: Porous Polymers and Beyond

Synergistic effect of pistachio shell powder and nano-zerovalent copper for chromium remediation from aqueous solution

Synergistic Effect of Pistachio Shell Powder and Nano-Zerovalent Copper for Chromium Remediation from Aqueous Solution

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