Selective recognition mechanism of molybdenum(VI) ions binding onto ion-imprinted particle in the water

Liu, Pingxin; An, Hongze; Ren, Yueming; Feng, Jing; Ma, Jun

doi:10.1016/j.cej.2018.05.071

Cited by 18 publications

(8 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These findings further demonstrate that IIP-Fe 3 O 4 @SiO 2 @CNFs had a higher affinity for Sb(III) than the NIP. Similar results have been reported in the literature [ 50 , 51 , 52 ].…”

Section: Resultssupporting

confidence: 92%

“…The developed method showed improved or similar analytical performance in terms of LOD, LOQ and linearity as compared to those reported by References [ 48 , 49 , 50 , 52 ]. However, the current method had high LOD and LOQ as well as narrow linear range as compared to those reported in the literature [ 2 , 17 , 39 , 51 , 53 ]. In addition, the preconcentration factor of the current method was lower than those reported elsewhere [ 2 , 17 , 48 ].…”

Section: Resultsmentioning

confidence: 55%

“…Furthermore, when the Scatchard plot displays an anomaly from linearity (showing two linear plots in one set of data), the results suggest that the adsorbent has more than one type of binding site. These binding sites can be categorised as high-affinity (low K d value) and low-affinity (high K d value) binding sites [ 51 , 52 ]. Figure 8 shows the Scatchard plots of Sb(III)-IIP-Fe 3 O 4 @SiO 2 @CNFs and NIP-Fe 3 O 4 @SiO 2 @CNFs.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Magnetic Ion Imprinted Polymers (MIIPs) for Selective Extraction and Preconcentration of Sb(III) from Environmental Matrices

et al. 2021

View full text Add to dashboard Cite

Antimony(III) is a rare element whose chemical and toxicological properties bear a resemblance to those of arsenic. As a result, the presence of Sb(III) in water might have adverse effects on human health and aquatic life. However, Sb(III) exists at very ultra-trace levels which may be difficult for direct quantification. Therefore, there is a need to develop efficient and reliable selective extraction and preconcentration of Sb(III) in water systems. Herein, a selective extraction and preconcentration of trace Sb(III) from environmental samples was achieved using ultrasound assisted magnetic solid-phase extraction (UA-MSPE) based on magnetic Sb(III) ion imprinted polymer-Fe3O4@SiO2@CNFs nanocomposite as an adsorbent. The amount of antimony in samples was determined using inductively coupled plasma optical emission spectrometry (ICP-OES). The UA-MSPE conditions were investigated using fractional factorial design and response surface methodology based on central composite design. The Sb(III)-IIP sorbent displayed excellent selectivity towards Sb(III) as compared to NIIP adsorbent. Under optimised conditions, the enrichment factor, limit of detection (LOD) and limit of quantification (LOQ) of UA-MSPE/ICP-OES for Sb(III) were 71.3, 0.13 µg L−1 and 0.44 µg L−1, respectively. The intra-day and inter-day precision expressed as relative standard deviations (%RSDs, n = 10 and n = 5) were 2.4 and 4.7, respectively. The proposed analytical method was applied in the determination of trace Sb(III) in environmental samples. Furthermore, the accuracy of the method was evaluated using spiked recovery experiments and the percentage recoveries ranged from 95–98.3%.

show abstract

“…These findings further demonstrate that IIP-Fe 3 O 4 @SiO 2 @CNFs had a higher affinity for Sb(III) than the NIP. Similar results have been reported in the literature [ 50 , 51 , 52 ].…”

Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 55%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Magnetic Ion Imprinted Polymers (MIIPs) for Selective Extraction and Preconcentration of Sb(III) from Environmental Matrices

et al. 2021

View full text Add to dashboard Cite

show abstract

“…[13][14][15][16][17] Therefore, many different methods, such as solvent extraction, ion exchange, and adsorption, have been developed to recover Mo(VI) from various aqueous media. [18][19][20][21][22][23][24] Among them, the adsorption method is widely preferred due to its simplicity of operation, low investment, easy regeneration, and effectiveness in dealing with various pollutants.…”

Section: Introductionmentioning

confidence: 99%

“…Molybdenum is one of the strategic metals widely used in anti‐corrosion coatings, lithium ion batteries, and catalysts, and it leads to the drain of natural resources 13‐17 . Therefore, many different methods, such as solvent extraction, ion exchange, and adsorption, have been developed to recover Mo(VI) from various aqueous media 18‐24 . Among them, the adsorption method is widely preferred due to its simplicity of operation, low investment, easy regeneration, and effectiveness in dealing with various pollutants.…”

Section: Introductionmentioning

confidence: 99%

Hydroxyl‐assisted nitrogen‐containing group modified persimmon tannin with enhanced recovery capacity for Mo(VI) in aqueous solution

Wang

Ren

Lou

et al. 2020

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

BACKGROUND: Persimmon tannin, extracted from young astringent persimmons, is a cheap waste biomass material. The abundant phenolic hydroxyl groups in persimmon tannin are known to display excellent affinity to Mo(VI). In addition, ligands containing N donor atoms, as brilliant adsorption groups, can strongly interact with Mo(VI) when the groups are protonated under acidic conditions. Therefore, the introduction of nitrogen-containing groups in persimmon tannin may be an effective method to improve the recovery capacity of biosorbent for Mo(VI) in aqueous solution. In this work, a series of adsorbents were prepared by immobilizing ethylenediamine or methylamine on the surface of persimmon tannin. RESULTS: Due to the abundant nitrogen-containing groups and hydroxyl groups, the ethylenediamine modified persimmon tannin exhibited excellent maximum uptake capacity to Mo(VI) (478.02 mg•g −1), which was superior to that of methylamine modified persimmon tannin. Further, the results of XPS and FT-IR confirmed that Mo(VI) was adsorbed on the hydroxyl-assisted nitrogen-containing group modified persimmon tannin via coordination and electrostatic interaction. CONCLUSION: Furthermore, 99% of Mo(VI) was selectively recovered from coexisting ions by en-CPT under appropriate acidic conditions (pH 1). Pseudo-second-order kinetic model best represented the adsorption process of Mo(VI) onto the en-CPT. The adsorption equilibrium was achieved in a relatively short time (no more than 1 h). High recovery efficiency and excellent selective adsorption made the en-CPT an ideal candidate for Mo(VI) recovery in practical applications.

show abstract

Synthesis of an Ion‐Imprinted Degreasing Cotton for the Selective Removal of Cu²⁺ from Aqueous Solutions

Wang

et al. 2019

ChemistrySelect

View full text Add to dashboard Cite

A novel ion‐imprinted degreasing cotton (IIC) was synthesized using a surface imprinting technique for the efficient selective adsorption of Cu2+ from aqueous solutions. The morphological structure of the samples was characterized by Scanning Electron Microscopy (SEM), and the chemical modification steps were characterized by Fourier Transform Infrared Spectroscopy (FTIR). The maximum adsorption capacity of the IIC and non‐imprinted degreasing cotton (NIC) for Cu2+ was 41.49 mg/g and 19.17 mg/g, respectively, at the optimum pH value of 6. The kinetics studies demonstrated that the adsorption follows a pseudo‐second‐order kinetic model. The dsorption isotherm analysis indicated that the Langmuir adsorption isotherm fits well with the adsorption equilibrium data. Also, the competitive studies show that the IIC has a good selectivity for Cu2+. In addition, the assessment of the reusability of a the IIC was tested for five successive cycles revealed no significant decrease of the adsorption capacity.

show abstract

Selective recognition mechanism of molybdenum(VI) ions binding onto ion-imprinted particle in the water

Cited by 18 publications

References 46 publications

Magnetic Ion Imprinted Polymers (MIIPs) for Selective Extraction and Preconcentration of Sb(III) from Environmental Matrices

Magnetic Ion Imprinted Polymers (MIIPs) for Selective Extraction and Preconcentration of Sb(III) from Environmental Matrices

Hydroxyl‐assisted nitrogen‐containing group modified persimmon tannin with enhanced recovery capacity for Mo(VI) in aqueous solution

Synthesis of an Ion‐Imprinted Degreasing Cotton for the Selective Removal of Cu²⁺ from Aqueous Solutions

Contact Info

Product

Resources

About

Selective recognition mechanism of molybdenum(VI) ions binding onto ion-imprinted particle in the water

Cited by 18 publications

References 46 publications

Magnetic Ion Imprinted Polymers (MIIPs) for Selective Extraction and Preconcentration of Sb(III) from Environmental Matrices

Magnetic Ion Imprinted Polymers (MIIPs) for Selective Extraction and Preconcentration of Sb(III) from Environmental Matrices

Hydroxyl‐assisted nitrogen‐containing group modified persimmon tannin with enhanced recovery capacity for Mo(VI) in aqueous solution

Synthesis of an Ion‐Imprinted Degreasing Cotton for the Selective Removal of Cu2+ from Aqueous Solutions

Contact Info

Product

Resources

About

Synthesis of an Ion‐Imprinted Degreasing Cotton for the Selective Removal of Cu²⁺ from Aqueous Solutions