A ligand-anchored optical composite material for efficient vanadium(<scp>ii</scp>) adsorption and detection in wastewater

Shahat, Ahmed; Hassan, Hassan M.A.; El‐Shahat, M. F.; Shahawy, Osama El; Awual, Md. Rabiul

doi:10.1039/c9nj01818b

Cited by 62 publications

(10 citation statements)

References 122 publications

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“…Depending on the concentration and pH value of the solution, vanadium forms more than 11 species of oxyanion compounds in an aqueous solution [ 8 ]. In the low pH range (<3), V(V) is present in the solution mainly as a cation VO 2 + .…”

Section: Introductionmentioning

confidence: 99%

Application of Ion Exchangers with the N-Methyl-D-Glucamine Groups in the V(V) Ions Adsorption Process

Burdzy

Chen

et al. 2022

Materials

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The adsorption capacities of ion exchangers with N-methyl-D-glucamine (NMDG) groups (Amberlite IRA 743, Lewatit MK 51, Purolite S110 and Purolite S108) relative to V(V) ions were tested in a batch system, taking into account the influence of various parameters, such as the adsorbent mass (0.05–0.20 g), phase contact time (1–240 min), initial concentration (10–150 mg/L), and temperature (293–333 K), as well as in a column system where the variable operating parameters were initial concentration (50, 100 mg/L), bed volume (10, 100 mL) and flow rate (0.6, 6 mL/min). Pseudo-first order, pseudo-second order, intraparticle diffusion and Boyd models were used to describe the kinetic studies. The best fit was obtained for the pseudo-second order model. The Langmuir, Freundlich and Temkin adsorption models were used to describe the equilibrium data to acquire better knowledge about the adsorption mechanism. The thermodynamic parameters were also calculated, which showed that the studied processes are endothermic, spontaneous and thermodynamically favorable. The physicochemical properties of the ion exchangers were characterized by nitrogen adsorption/desorption analyses, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and X-ray photo electron spectroscopy (XPS). The point of zero charge (pHPZC) was also determined.

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Section: Introductionmentioning

confidence: 99%

Application of Ion Exchangers with the N-Methyl-D-Glucamine Groups in the V(V) Ions Adsorption Process

Burdzy

Chen

et al. 2022

Materials

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“…The mesoporous silica attracted attention because of its specific surface functionality, porous wall structure, biocompatibility, and hydrophilic design [13–22] . MSNSs (mesoporous silica nanospheres) were created and used as a scaffold for accommodating new ion chromophores in this study (Phimhb).…”

Section: Resultsmentioning

confidence: 99%

“…Many papers showed that the use of nanomaterials as a scaffold for immobilization of the reagents enhances their selectivity and sensitivity [13–22] . From this point of view, we tried to far away from the routine work and make a chemosensor.…”

Section: Introductionmentioning

confidence: 99%

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Development of a Sensitive and Selective Optical Sensor for Measuring Ultra‐Trace Amounts of Fe(II) and Fe(III) Ions in Water

Al‐Qahtani

Shah²,

Aljuhani³

et al. 2022

ChemistrySelect

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A smart spectrophotometric method for the analytical determination of iron concentration in whichever oxidation state was developed using a novel optical sensor. The optical sensor was prepared by direct immobilization of novel synthesized chromophore, 5‐(((1,10‐phenanthrolin‐5‐yl)imino)methyl)‐2‐hydroxybenzoic acid (Phimhb) onto mesoporous silica nanospheres (MSNSs). The novel Phimhb chromophore has two sites, one is selective to Fe(II) ions and the other is selective to Fe(III) ions. The ions′ color can be seen with the human eye and monitored using spectrophotometric techniques or a smartphone. The influence of several parameters on the evaluation of iron ions content was studied and optimized. The proposed method was validated in terms of LOD, LOQ, linearity, and precision according to ICH guidelines. The optical Phimhb sensor has wide linear dynamic ranges with low detection limits of 4.94 ppb (1.83×10−7 mol L−1) and 10.4 ppb (3.85×10−7 mol L−1) for Fe(II) and Fe(III), respectively. The response time of this sensor for both ions was 60 s. The Phimhb sensor could be reproduced multiple times and used with a higher capacity each time. The effect of potential interfering ions on the estimation of Fe(II) and Fe(III) was investigated. The outcomes clarified that the prepared Phimhb sensor was very selective to Fe(II) and Fe(III) ions. Therefore, the Phimhb sensor had been successfully used in the determination of Fe(II) and Fe(III) in real water even without any pre‐concentration, it has high specificity.

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“…The adsorption capacity of the new composite was found to be 492.61 mg g -1 . The composite materials also exhibit the property of selectivity and sensitivity for the capture of vanadium ions from waste water [56].…”

Section: Ligand Based Adsorption Of Metal Ionsmentioning

confidence: 99%

Role of different parameters and mathematical models for metal ions adsorption from industrial waste water

2020

Biointerface Res Appl Chem

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Manuscript discussed the role of different parameters for the metal ions removal from industrial waste water. The metal ions removal from waste water is essential to decrease the diseases and environmental hazards caused by heavy metal ions. The different parameters of adsorption including the effect of contact time, dose, pH, temperature, kinetics and Brunauer-Emmett-Teller analysis is discussed. This manuscript focuses on biosorption of metal ions, competitive adsorption of metal ions and ligand based adsorption of metal ions. This manuscript also focuses on the commercially available adsorbent used in the removal of metal ions efficiently including polymeric adsorbent and activated carbon.

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A ligand-anchored optical composite material for efficient vanadium(ii) adsorption and detection in wastewater

Abstract: A ligand-anchored composite material was prepared for vanadium (V(ii)) ion capturing. The pH was found to be a key factor in both detection and removal operations. The composite material exhibited the high adsorption capacity of 492.61 mg g−1.

Cited by 62 publications

References 122 publications

Application of Ion Exchangers with the N-Methyl-D-Glucamine Groups in the V(V) Ions Adsorption Process

Application of Ion Exchangers with the N-Methyl-D-Glucamine Groups in the V(V) Ions Adsorption Process

Development of a Sensitive and Selective Optical Sensor for Measuring Ultra‐Trace Amounts of Fe(II) and Fe(III) Ions in Water

Role of different parameters and mathematical models for metal ions adsorption from industrial waste water

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