Synthesis of ion imprinted polymeric nanoparticles for selective pre-concentration and recognition of lithium ions

Hashemi, Beshare; Shamsipur, Mojtaba; Seyedzadeh, Zahra

doi:10.1039/c5nj03366g

Cited by 37 publications

(13 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“… 81 , 82 12C4 and B12C4 are common and well-known lithium complexing ligands, which have been used to develop lithium-selective materials. 83 , 84 The introduction of LC mesogenic moieties to the CE derivatives could develop a new class of ion-active LC self-assembled functional materials. 66 Taking advantage of LC self-assembly, liquid-crystalline CE derivatives could form well-defined interconnected ionic channels suitable for selective ion transport.…”

Section: Resultsmentioning

confidence: 99%

Selective lithium ion recognition in self-assembled columnar liquid crystals based on a lithium receptor

2018

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 99%

Selective lithium ion recognition in self-assembled columnar liquid crystals based on a lithium receptor

2018

View full text Add to dashboard Cite

show abstract

“…The resulted Fe 3 O 4 @SiO 2 @IIPs was gathered as above method. The imprinted Li(I) and Rb(I) were removed from the Fe 3 O 4 @SiO 2 @IIPs using a mixture of 15 mL H 2 O and 5 mL 1.0 M HNO 3 solution . Figure shows the detailed illustration of the preparation of Fe 3 O 4 @SiO 2 @IIPs.…”

Section: Methodsmentioning

confidence: 99%

“…The imprinted Li(I) and Rb(I) were removed from the Fe 3 O 4 @SiO 2 @IIPs using a mixture of 15 mL H 2 O and 5 mL 1.0 M HNO 3 solution. [31,32] Figure 1 shows the detailed illustration of the preparation of Fe 3 O 4 @SiO 2 @IIPs. The non-imprinted polymers (Fe 3 O 4 @SiO 2 @NIPs) were prepared under identical conditions as Fe 3 O 4 @SiO 2 @IIPs except that LiCl·H 2 O and RbCl were not added.…”

Section: Fabrication Of Fe 3 O 4 @Sio 2 @Iipsmentioning

confidence: 99%

Simultaneous adsorption of Li(I) and Rb(I) by dual crown ethers modified magnetic ion imprinting polymers

et al. 2019

Applied Organom Chemis

View full text Add to dashboard Cite

With the gradual exhaustion of land mineral resources, oceans and lakes have attracted world attention because they are abundant in inorganic mineral resources including lithium, potassium, rubidium and cesium. Lithium is becoming the key material in manufacturing of primary and secondary batteries used in various portable devices and hybrid/electric vehicles. Rubidium has been widely applied inglobal positioning satellites, magneto‐optic modulators, solid‐state lasers, phosphors, and glass manufacturing. In this work, a novel dual‐functional magnetic ion imprinting polymer (Fe3O4@SiO2@IIPs) powder was prepared using 12‐crown‐4 (12C4) and 18‐crown‐6 (18C6) as functional monomer, and characterized by FT‐IR, elemental analysis, XRD, TGA, SEM and TEM. The adsorption performance of Fe3O4@SiO2@IIPs for simultaneous adsorption of lithium and rubidium from simulative salt lakes was evaluated by batches of experiments at various pH values, contact time, and initial concentrations. Kinetic experiments show that the adsorption process followed the pseudo second order kinetic model. Langmuir adsorption isotherm model and Freundlich adsorption equilibrium data were fitted; the results show that Langmuir isotherm model is more suitable for the adsorption process. Additionally, Fe3O4@SiO2@IIPs exhibit specificity towards Li(I) and Rb(I) and low competitive behavior with Na(I), K(I) and Mg (II). Additionally, the selectivity properties, reusability and adsorption thermodynamic were also investigated. The obtained results show that the prepared Fe3O4@SiO2@IIPs material remains high adsorption capacities after five cycles, exhibits excellent abilities to simultaneously and selectively recover Li+ and Rb+ and have a promising application in the simultaneous adsorption of lithium and rubidium ions.

show abstract

“…Hence, choosing a crown ether with the appropriate cavities for target ions is significant for stable coordination and selectivity. In recent years, 12-crown-4 (12C4) and its analogues, such as 2-methylol-12-crown-4 (2M12C4), 2-(allyloxy)methyl-12-crown-4 (2AM12C4), and benzo-12-crown-4 (B12C4), have been widely investigated to selectively extract Li + . ,− According to the previous studies, the cavity size of dibenzo-14-crown-4 (DB14C4) is very close to the ionic diameter of lithium. − However, reports about selective adsorption of IIPs for Li + based on DB14C4 are few.…”

Section: Introductionmentioning

confidence: 99%

Highly Effective and Low-Cost Ion-Imprinted Polymers Loaded on Pretreated Vermiculite for Lithium Recovery

Huang

Wang

2019

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

In this work, we developed low-cost and highly effective lithium-imprinted polymers (IIPs) by using vermiculite and dibenzo-14-crown-4 as the carrier and the chelating reagent, respectively, to recover lithium resources. Vermiculite was pretreated by HNO3 vapor and ultrasound waves to improve its properties. The maximum adsorption capacity of IIPs reached 2852.61 μmol/g under the optimal adsorption conditions. The homogeneous binding sites of IIPs can be well proved by the Langmuir isotherm model. In the presence of Na+, K+, and Mg2+, IIPs still maintained good selectivity for Li+, and the related separation factors toward Li+ were all higher than 3.5. Moreover, used IIPs can be efficiently regenerated by 1 M HNO3, and the Li+ adsorption capacity only decreased 13.1% after 10 experiment cycles. The results demonstrate that IIPs have stable adsorption and ideal selectivity. Therefore, they have the potential to be applied to extract Li+ for producing battery-grade lithium products.

show abstract

Synthesis of ion imprinted polymeric nanoparticles for selective pre-concentration and recognition of lithium ions

Abstract: A new Li+–IIP has been prepared for the fast determination and selective separation of lithium ions in aqueous samples.

Cited by 37 publications

References 32 publications

Selective lithium ion recognition in self-assembled columnar liquid crystals based on a lithium receptor

Selective lithium ion recognition in self-assembled columnar liquid crystals based on a lithium receptor

Simultaneous adsorption of Li(I) and Rb(I) by dual crown ethers modified magnetic ion imprinting polymers

Highly Effective and Low-Cost Ion-Imprinted Polymers Loaded on Pretreated Vermiculite for Lithium Recovery

Contact Info

Product

Resources

About