Surface-imprinted polymer microspheres for rapid and selective adsorption of As(V) ions from the aqueous phase

Yin, Fengqin; Mo, Yeling; Liu, Xueting; Pang, Yuxuan; Wu, Xiuxiu; Hao, Liling; Yu, Jingsong; Xu, Fei

doi:10.1016/j.matchemphys.2021.125687

Cited by 10 publications

(9 citation statements)

References 34 publications

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“…Finally, according to our adsorption-desorption experiments, in order to evaluate the regeneration efficiency of MIPs, we concluded that after 4-10 cycles of regeneration and reuse, as mainly reported elsewhere [81][82][83][84][87][88][89], the loss of initial adsorption capacity was slight. There are two studies showing that the regenerated imprinted polymers were effective for 20-25 cycles [32,80].…”

Section: Critical Comparisonsupporting

confidence: 74%

“…Moreover, as the pH increased, the adsorption capacity decreased due to the various forms of arsenate in the different pH values and the variations of the surface charge of the adsorbent. Specifically, the adsorption capacity of 39.5 mg/g at pH 3 was about 12.1 mg/g at a pH of 7 [84].…”

Section: As(v) (Arsenate)mentioning

confidence: 95%

“…There are two studies showing that the regenerated imprinted polymers were effective for 20-25 cycles [32,80]. In most cases, an acidic solution was used as the desorption agent, i.e., HCl [80,83,84,87] and HNO 3 [81,89], and only in a few cases was NaOH [88] or EDTA [82] used.…”

Section: Critical Comparisonmentioning

confidence: 99%

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Arsenic(III) and Arsenic(V) Removal from Water Sources by Molecularly Imprinted Polymers (MIPs): A Mini Review of Recent Developments

2022

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The present review article summarizes the recent findings reported in the literature with regard to the use of molecularly imprinted polymers for the removal of arsenic from water and wastewater. MIPs are polymers in which a template is employed in order to enable the formation of recognition sites during the covalent assembly of the bulk phase, via a polymerization or polycondensation process. The efficiency of both arsenic species and the mechanism of removal are highlighted. The results have shown that under certain conditions, MIPs demonstrated arsenic sorption capacities of up to 130 mg/g for As(V) and 151 mg/g for As(III), while the regeneration ability was found to reach up to more than 20 cycles. The overall results showed that further development of MIPs could result in the formation of promising adsorbents for arsenic removal from waters. The use of MIPs for the removal not only of arsenic but also other inorganic contaminants is considered a very important topic, with great potential in terms of future applications in water treatment. The main advantage of these materials is that they are very selective toward the contaminant of interest. This enhanced selectivity is attributed to the incorporation of specific templates, which can then adsorb the contaminant of interest almost exclusively. Therefore, the main problem in adsorption processes is the competition for adsorption sites by other water components, for example, phosphates, nitrates, carbonates, and sulfates, which can be circumvented by the use of MI-type adsorbents.

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Section: Critical Comparisonsupporting

confidence: 74%

Section: As(v) (Arsenate)mentioning

confidence: 95%

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Arsenic(III) and Arsenic(V) Removal from Water Sources by Molecularly Imprinted Polymers (MIPs): A Mini Review of Recent Developments

2022

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“…Such strategies involve mostly SIP approaches such as nanoscale imprinting, 85,86 surface imprinting, 85 and so-gel imprinting. 87,88 These imprinting strategies involve creating multiple recognition sites on top of the lms and by doing so, prevent the removal problem and avoid slow binding kinetics and low binding capacity. Hence, BIPs and VIPs have the potential of being biosensors with a wide platform of applications.…”

Section: Imprinted Objectsmentioning

confidence: 99%

Imprinting of nanoparticles in thin films: Quo Vadis?

Zelikovich,

Dery,

Sagi-Cohen

et al. 2023

Chem. Sci.

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“…Compared with other metal ions, this template ion pore shows a special a nity for template ions (Chen et al, 2021). In recent years, IIT has also been applied to synthesis of adsorption materials (Yin et al, 2021). Gao's team developed a rice husk-based ion-imprinting polymer adsorbent using copper ions as a template.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of imprinted bacterial cellulose aerogel for efficient recovery of Er(III) from end-of-life erbium-doped fibers

Zheng

Wang

et al. 2022

Preprint

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Selective recovery of high value rare earth elements from end-of-life rare earth products is an economical and environmental measure. In this study, we used bio-based material (2,2,6,6-tetramethyl-1-piperidinyloxy-mediated bacterial cellulose) as the substrate material to construct a highly elastic imprinted bacterial cellulose aerogel (BCP-I) in synergy with chitosan (CS) and polyethyleneimine (PEI) for highly selective adsorption Er(III). CS and PEI contain abundant functional monomers, which can cooperate with bacterial cellulose and Er(III) to construct more imprinting sites, which not only improves the adsorption performance of BCP-I, but also makes the aerogel more stable. In order to analyze physical and chemical properties of aerogels, it was characterized by scanning electron microscope, fourier transform infrared spectrometer and thermogravimetric analysis. Adsorption experiments showed that BCP-I had a good adsorption effect on Er(III), and the maximum adsorption capacity could reach 95.99 mg g− 1. Cyclic experiments show that the adsorption property of BCP-I is still in good condition. All in all, BCP-I with environment-friendliness, high selectivity and good reproducibility is a good choice for recovery of Er(III).

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Surface-imprinted polymer microspheres for rapid and selective adsorption of As(V) ions from the aqueous phase

Cited by 10 publications

References 34 publications

Arsenic(III) and Arsenic(V) Removal from Water Sources by Molecularly Imprinted Polymers (MIPs): A Mini Review of Recent Developments

Arsenic(III) and Arsenic(V) Removal from Water Sources by Molecularly Imprinted Polymers (MIPs): A Mini Review of Recent Developments

Imprinting of nanoparticles in thin films: Quo Vadis?

Preparation and characterization of imprinted bacterial cellulose aerogel for efficient recovery of Er(III) from end-of-life erbium-doped fibers

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