Preparation of surface anion imprinted polymer by developing a La(III)-coordinated 3-methacryloxyethyl-propyl bi-functionalized graphene oxide for phosphate removal

Liu, Zhanchao; Wu, Weifu; Liu, Yan; Hu, Xiao

doi:10.1016/j.jtice.2018.02.001

Cited by 25 publications

(5 citation statements)

References 45 publications

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“…In 2018, Liu et al reported a phosphate surface-imprinted polymer (GO-IIP) using lanthanum modified graphene oxide as functional monomer, methyl methacrylate as a functional monomer, NaH 2 PO 4 as a template, and EGDMA as a cross-linker. 96 The obtained GO-IIP took advantage of the high phosphate affinity of lanthanum, the ion recognition ability of imprinted polymer, and the large surface area of graphene oxide, thereby giving a high Langmuir adsorption capacity of 104.3 mg P/g at 25 °C, a fast adsorption equilibrium time of 40 min, and relatively high selectivity to phosphate over F − , Cl − , NO 3 − , and SO 4 2− . There was no significant decrease of the phosphate adsorption capacities of the GO-IIP after seven adsorption−desorption cycles.…”

Section: Selective Phosphate Removal Based Onmentioning

confidence: 99%

Selective Phosphate Removal from Water and Wastewater using Sorption: Process Fundamentals and Removal Mechanisms

Wan

Zhang

et al. 2019

Environ. Sci. Technol.

507

157

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Eutrophication of water bodies is a serious and widespread environmental problem. Achieving low levels of phosphate concentration to prevent eutrophication is one of the important goals of the wastewater engineering and surface water management. Meeting the increasingly stringent standards is feasible in using a phosphate-selective sorption system. This critical review discusses the most fundamental aspects of selective phosphate removal processes and highlights gains from the latest developments of phosphate-selective sorbents. Selective sorption of phosphate over other competing anions can be achieved based on their differences in acid–base properties, geometric shapes, and metal complexing abilities. Correspondingly, interaction mechanisms between the phosphate and sorbent are categorized as hydrogen bonding, shape complementarity, and inner-sphere complexation, and their representative sorbents are organic-functionalized materials, molecularly imprinted polymers, and metal-based materials, respectively. Dominating factors affecting the phosphate sorption performance of these sorbents are critically examined, along with a discussion of some overlooked facts regarding the development of high-performance sorbents for selective phosphate removal from water and wastewater.

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Section: Selective Phosphate Removal Based Onmentioning

confidence: 99%

Selective Phosphate Removal from Water and Wastewater using Sorption: Process Fundamentals and Removal Mechanisms

Wan

Zhang

et al. 2019

Environ. Sci. Technol.

507

157

View full text Add to dashboard Cite

show abstract

“…Subsequently, the final products are obtained after the elution of template metal ions and denoted as IIPs. Interestingly, these IIPs exhibit a high affinity for the target metal ions over other metal ions. , …”

Section: Introductionmentioning

confidence: 99%

“…Interestingly, these IIPs exhibit a high affinity for the target metal ions over other metal ions. 18,19 In recent years, various efforts have been devoted to the development of porous IIPs and their hybrids as robust adsorbent materials for removal of heavy-metal ions and rareearth (RE) ions in reported research studies. 20 For example, chitosan/polyvinylpyrrolidone-based IIPs with La(III), Ce-(III), and Sm(III) (Ln(III)IP-CS/PVP) are prepared and exhibit adsorption capacities of nearly 40 mg/g.…”

Section: ■ Introductionmentioning

confidence: 99%

Enhanced Selective Adsorption of Lanthanum(III) by Dual-Site Polymeric Ion-Imprinted Nanoparticles from Aqueous Media

Zhang

Liu

Guo

et al. 2023

ACS Appl. Polym. Mater.

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Selective recognition and separation of rare-earth elements (REEs) is considered a real challenge for the RE industry. In this work, two dual-site ion-imprinted polymers (IIP-AM and IIP-MAA) were synthesized via a radical copolymerization method for the removal of La(III) from aqueous solutions. The structures of samples were characterized and confirmed with various kinds of techniques, including IR, X-ray diffraction, field emission scanning electron microscopy, Brunauer–Emmett–Teller, thermogravimetry analysis, and X-ray photoelectron spectroscopy (XPS). Adsorption studies reveal that the pseudo-second-order kinetic model and the Langmuir isotherm model were well-fitted with the adsorption of La(III), showing high adsorption capacities of 45.65 and 50.05 mg/g for IIP-AM and IIP-MAA, respectively, after 120 min at pH = 5.5 and 25 °C. Impressively, the fabricated IIPs possess remarkable selectivity between La(III) and other REEs, as well as excellent reusability after five successive adsorption–regeneration cycles with less than 9% reduction of capacities. The adsorption mechanism indicates that the surface complexation and electrostatic attraction contribute to the adsorption of La(III) based on the characterization analysis of XPS, elemental mapping, and energy-dispersive spectrometry, as well as density functional theory calculations. Accordingly, these samples with tailored ion-imprinted cavities and abundant active O sites entirely exhibit the potentials for the selective recovery of REEs from aqueous solutions.

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“…In another study, the regeneration of L-NH2@Ce was provided using 0.1 NaOH solution at a temperature of 60 • C with two cycles to recover the phosphate from the exhausted adsorbent. The phosphate removal efficiency of the material decreased from 92 to 90% at the end of the second cycle, most probably due to the slight decrease of active surfaces of material after regeneration tests (Liu et al, 2018). Zhao et al (2020) also reported the regeneration of phosphate contaminated AL-DETA@Zr material by NaOH solution at different cycles.…”

Section: Recovery Of Phosphate From Carbonaceous Materialsmentioning

confidence: 95%

Carbonaceous materials for removal and recovery of phosphate species: Limitations, successes and future improvement

et al. 2022

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Preparation of surface anion imprinted polymer by developing a La(III)-coordinated 3-methacryloxyethyl-propyl bi-functionalized graphene oxide for phosphate removal

Cited by 25 publications

References 45 publications

Selective Phosphate Removal from Water and Wastewater using Sorption: Process Fundamentals and Removal Mechanisms

Selective Phosphate Removal from Water and Wastewater using Sorption: Process Fundamentals and Removal Mechanisms

Enhanced Selective Adsorption of Lanthanum(III) by Dual-Site Polymeric Ion-Imprinted Nanoparticles from Aqueous Media

Carbonaceous materials for removal and recovery of phosphate species: Limitations, successes and future improvement

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