Sequestration and recovery of thorium ions using a recyclable, low-cost, glutathione-based magnetic nanocomposite: Experimental study and statistical modeling

Sharma, Manish; Sharma, Priya; Yadav, Lalita; Janu, Vikash Chandra

doi:10.1016/j.seppur.2023.124264

Cited by 25 publications

(18 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In contrast, the Freundlich model predicted a heterogeneous surface containing numerous layers of adsorption . Consequently, this nonidentical adsorption on multiple layers could be explained by the following equation ln ⁡ q e = ln K f + 1 n ln ⁡ C e where K f is the freundlich constant.…”

Section: Resultsmentioning

confidence: 93%

Simultaneous Adsorption of Th(IV) and U(VI) Ions from Aqueous Solutions by a Tannic-Acid-Modified Nanomagnetite Adsorbent

Sharma,

Dhiware,

Sharma

et al. 2023

ACS Appl. Eng. Mater.

Self Cite

View full text Add to dashboard Cite

Nuclear wastewater remediation provides an intriguing opportunity to successfully remove and recover radioactive elements, especially Th(IV) and U(VI) ions, since they play a crucial role as nuclear fuel and pose a significant threat to the sustainability of the environment. In the present investigation, magnetic nanoparticles were modified by a polyphenolic compound, tannic acid (TA), to develop a tannic acid@magnetite (TA@Fe3O4) nanocomposite for effective adsorption of Th(IV) and U(VI) ions from wastewater. To more accurately predict the effective adsorption of the ions, adsorbents varying in the mass ratio of TA and Fe3O4 were synthesized, and also the practical utility of the adsorbent was evaluated by employing batch adsorption studies under the conditions of pH, adsorbent dosage, contact time, and initial concentration. The maximum removal efficiency, i.e., 99.42% and 92.63% for Th(IV) and U(VI) ions, respectively, was obtained with a 1:2 ratio of TA@Fe3O4 at pH 6 with 6 mg of absorbent dosage of 10 mL of 50 ppm thorium and uranium solution in 20 min. Further, the experimental data were attributed to the isotherms and kinetic models, corresponding the adsorption system with the Langmuir model of the isotherm and pseudo-second-order kinetics, thus revealing the monolayer chemisorption process of adsorption for both ions. The TA@Fe3O4 nanocomposite exhibited high recyclability with seven adsorption–desorption cycles via magnetic separation, indicating its potential application in wastewater treatment. Hence, on the basis of facile, low-cost precursors for large-scale manufacturing and excellent recyclability, this work presents a potential and promising strategy of the TA@Fe3O4 nanocomposite for enhanced removal of radionuclides for wastewater reclamation.

show abstract

Section: Resultsmentioning

confidence: 93%

Simultaneous Adsorption of Th(IV) and U(VI) Ions from Aqueous Solutions by a Tannic-Acid-Modified Nanomagnetite Adsorbent

Sharma,

Dhiware,

Sharma

et al. 2023

ACS Appl. Eng. Mater.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Here, the linear and nonlinear equations of three most prevalent adsorption isotherms, i.e., Langmuir, Freundlich, and Temkin isotherms are studied and reported in this study at RT, using various concentrations of TC solution (Text S4 and eqs S3–S8). , The Langmuir adsorption isotherm presumes that monolayer adsorption takes place on a homogeneous surface of adsorbent. The Freundlich isotherm outlines multilayered adsorption by the heterogeneous adsorbent surface.…”

Section: Resultsmentioning

confidence: 99%

Batch Experimental Studies and Statistical Modeling for the Effective Removal of Tetracycline from Wastewater Using Bimetallic Zn–Cu-Metal–Organic Framework@Hydrogel Composite Beads

Laddha,

Sharma,

Jadhav

et al. 2023

Langmuir

Self Cite

View full text Add to dashboard Cite

“…Thus, the observed results suggested the interaction between the uranium and thorium ions and MNPs-SA@Cu MOF composite beads via hydrogen bonding. 25,28 For clarifying the adsorption mechanism onto MNPs-SA@Cu MOF composite beads, a plausible adsorption mechanism is depicted in Scheme 2. XPS was used to evaluate the changes in the chemical composition and structure of MNPs-SA@Cu MOF composite beads before and after the adsorption of uranium and thorium ions.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…Sharma et al reported the procedure for the synthesis of magnetite which was followed with slight modifications. 25 In this procedure, 1.5 g of FeCl 2 •4H 2 O and 3 g of FeCl 3 •6H 2 O were taken in a 250 mL two neck round-bottom flask with 50 mL of deionized water. This solution was ultrasonicated for 30 min at 25 °C in the presence of N 2 and then further sonicated for 1 h at 60 °C.…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Evaluation of Adsorptive Capture and Release Efficiency of MNPs-SA@Cu MOF Composite Beads Toward U(VI) and Th(IV) Ions from an Aqueous Media

Sharma,

Janu

et al. 2023

Langmuir

Self Cite

View full text Add to dashboard Cite

Effluent from nuclear power plants, rocks, and minerals contains hazardous radionuclides that adversely affect human health and seriously threaten the environment. To address this issue, simple, economic, and sustainable magnetite nanoparticle loaded sodium alginate copper metal–organic framework composite beads (MNPs-SA@Cu MOF composite beads) have been designed, and their performance has been evaluated under varying conditions of pH, time, adsorbent dose, and initial concentration and have been studied by batch adsorption studies for optimizing the adsorption conditions. In this work, MNPs-SA@Cu MOF composite beads have been prepared in situ for the adsorptive removal of uranium [U(VI)] and thorium [Th(IV)] ions from an aqueous solution. The synthesized MNPs-SA@Cu MOF composite beads were characterized by model analytical techniques like Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, field emission scanning electron microscopy, Brunauer–Emmett–Teller, and thermal gravimetric analysis. Here, 6 mg of adsorbent with 10 mL of 50 mg/L uranium and thorium ion solution at pH 5 was capable of removing the U(VI) and Th(IV) ions with 99.9 and 97.7% removal efficiencies, respectively. The obtained results showed that the adsorption behavior of the adsorbent for U(VI) and Th(IV) follows pseudo-second-order kinetics, and Langmuir isotherm fitted well with a maximum adsorption capacity of 454.54 and 434.78 mg/g, respectively. The adsorption mechanism indicated that electrostatic interaction and hydrogen bonding are the main driving forces for removing the U(VI) and Th(IV) ions. It can be reused for up to 10 adsorption–desorption cycles with minimal loss of removal efficiency. The easy synthesis method of MNPs-SA@Cu MOF composite beads and the high removal efficiency of U(VI) and Th(IV) ions reveal that they can potentially treat radionuclide waste effectively.

show abstract

Sequestration and recovery of thorium ions using a recyclable, low-cost, glutathione-based magnetic nanocomposite: Experimental study and statistical modeling

Cited by 25 publications

References 37 publications

Simultaneous Adsorption of Th(IV) and U(VI) Ions from Aqueous Solutions by a Tannic-Acid-Modified Nanomagnetite Adsorbent

Simultaneous Adsorption of Th(IV) and U(VI) Ions from Aqueous Solutions by a Tannic-Acid-Modified Nanomagnetite Adsorbent

Batch Experimental Studies and Statistical Modeling for the Effective Removal of Tetracycline from Wastewater Using Bimetallic Zn–Cu-Metal–Organic Framework@Hydrogel Composite Beads

Evaluation of Adsorptive Capture and Release Efficiency of MNPs-SA@Cu MOF Composite Beads Toward U(VI) and Th(IV) Ions from an Aqueous Media

Contact Info

Product

Resources

About