Preparation and characterization of organofunctionalized bentonite clay bearing aminophosphonic groups in heavy metal uptake

Kostenko, Liudmyla; Artiushenko, Olena; Ковальчук, Т. В.; Tomashchuk, Iryna; Zaitsev, Vladimir

doi:10.1016/j.jece.2019.103434

Cited by 12 publications

(3 citation statements)

References 33 publications

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“…Therefore, researchers have immobilized magnetite on solid carriers, such as bentonite, biochar, and organic polymer materials, which can minimize the coagulation of magnetic nanoparticles. Bentonite, as an inorganic carrier, is mainly composed of montmorillonite, a clay mineral with a negatively charged surface and a 2:1 type of aluminosilicate [17,18]. To reuse the adsorbent in a facile manner and enhance the adsorption capacity of heavy metals from water, a magnetic bentonite inorganic-organic material was successfully prepared by the co-precipitation method, and organic cellulose nanoparticles, TOCNs, were introduced into the novel composite production process.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Polyethyleneimine-Modified Nanocellulose/Magnetic Bentonite Composite as a Functional Biosorbent for Efficient Removal of Cu(Ⅱ)

Sun

Han

et al. 2022

Water

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A novel inorganic–organic biosorbent, polyethyleneimine (PEI)-modified nanocellulose cross-linked with magnetic bentonite, was prepared for the removal of Cu(Ⅱ) from water. Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) showed that the amino and carboxyl groups were successfully grafted onto the nanocellulose structure. The adsorption performance of Cu(Ⅱ) with various factors, using the biosorbent, was investigated. The results show that the adsorption equilibrium could be reached within a short time (10 min), and the adsorption capacity of Cu(Ⅱ) reached up to 757.45 mg/g. The adsorption kinetics and adsorption isotherms were well-fitted with the pseudo-second-order and the Freundlich isotherm models, respectively. The adsorption process of the composite is mainly controlled by chemisorption, and functional group chelation and electrostatic force were the adsorption mechanisms; pore filling also has a great influence on the adsorption of Cu(Ⅱ). It was found that the prepared modified nanocellulose composite has great potential for the removal of heavy metals from water.

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Section: Introductionmentioning

confidence: 99%

Fabrication of Polyethyleneimine-Modified Nanocellulose/Magnetic Bentonite Composite as a Functional Biosorbent for Efficient Removal of Cu(Ⅱ)

Sun

Han

et al. 2022

Water

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“…The aminophosphonic acid chelating resin contains an amino and phosphate group, which both can effectively coordinate to metal ions, as opposed to the chelating resins containing the iminodiacetate acid or quaternary ammonium functional group with only one site for coordination. 18 Therefore, aminophosphonic acid chelating resin may possess better selectivity and suitability for separating the vanadium solution. Treatment of the acid leaching solution of black shale with aminophosphonic acid chelating resin has rarely been reported.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, when chelating resin is used to treat vanadium‐containing solutions, the binding force between vanadium and the functional groups can be strong, and the chelating resin may exhibit good selectivity for vanadium adsorption. The aminophosphonic acid chelating resin contains an amino and phosphate group, which both can effectively coordinate to metal ions, as opposed to the chelating resins containing the iminodiacetate acid or quaternary ammonium functional group with only one site for coordination 18 . Therefore, aminophosphonic acid chelating resin may possess better selectivity and suitability for separating the vanadium solution.…”

Section: Introductionmentioning

confidence: 99%

Selective separation and recovery of vanadium from acid leaching solution of polymetallic black shale as function of aminophosphonic acid

Wang

Xue

Zhang

et al. 2022

J of Chemical Tech & Biotech

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BACKGROUND Acid leaching is an effective method to extract vanadium from polymetallic black shale. However, a large amount of metal impurities, especially iron and aluminum, which accompany V, are released during this process. RESULTS In this study, a aminophosphonic acid chelating resin was used for the differential adsorption and desorption of vanadium, iron and aluminum ions to achieve deep separation and concentration of vanadium ions present in the acid leaching solution of polymetallic black shale. Results showed that vanadium adsorption efficiency reached 90.17% at a pH of 1.8. After differential adsorption and desorption, the V:Fe and V:Al concentration ratios increased from 1.84 to 64.53 and from 0.24 to 37.92, respectively. When a 2.5 mol L−1 NaOH solution was used as desorbent, the separation factors β(V/Fe) and β(V/Al) reached values of 694.22 and 452.29, realizing the selective separation and concentration of vanadium. CONCLUSION It was found that the vanadium, iron and aluminum ions were selectively adsorbed onto the phosphonic acid functional groups (PO(OH)2) and amino functional groups (NH). The vanadium ions existed in the form of the polyvanadate (H2V10O284−), which can be directionally adsorbed onto PO(OH)2 under POH bond cleavage and coordination of H2V10O284− to the unsaturated phosphorus atom and then desorbed through the exchange between hydroxide anions OH− and H2V10O284−. The iron and aluminum ions cannot be desorbed by OH− because the iron and aluminum sulfate moieties FeSO4+ and AlSO4+ were capable of coordinating to the nitrogen atom of the NH group via its lone electron pair. © 2022 Society of Chemical Industry (SCI).

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Green and eco-friendly montmorillonite clay for the removal of Cr(III) metal ion from aqueous environment

Essebaai

Lgaz

Alrashdi

et al. 2021

Int. J. Environ. Sci. Technol.

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Preparation and characterization of organofunctionalized bentonite clay bearing aminophosphonic groups in heavy metal uptake

Cited by 12 publications

References 33 publications

Fabrication of Polyethyleneimine-Modified Nanocellulose/Magnetic Bentonite Composite as a Functional Biosorbent for Efficient Removal of Cu(Ⅱ)

Fabrication of Polyethyleneimine-Modified Nanocellulose/Magnetic Bentonite Composite as a Functional Biosorbent for Efficient Removal of Cu(Ⅱ)

Selective separation and recovery of vanadium from acid leaching solution of polymetallic black shale as function of aminophosphonic acid

Green and eco-friendly montmorillonite clay for the removal of Cr(III) metal ion from aqueous environment

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