Magnesium carbonate basic coating on cotton cloth as a novel adsorbent for the removal of uranium

Zhang, Lei; Jing, Xiaoyan; Li, Rumin; Liu, Qi; Liu, Jingyuan; Zhang, Hongsen; Hu, Songxia; Wang, Jun

doi:10.1039/c4ra16446f

Cited by 8 publications

(6 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The decreasing value of ΔG o with an increase in temperature reiterates that the adsorption process is more favorable at higher temperatures. 56 3.6. Application in Simulated Nuclear Industry Effluents.…”

Section: Adsorption Kineticsmentioning

confidence: 99%

Preparation of Amidoxime-Based Nylon-66 Fibers for Removing Uranium from Low-Concentration Aqueous Solutions and Simulated Nuclear Industry Effluents

Zhou

Gao

Yang

et al. 2016

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Amidoximated nylon-66 fiber containing double amidoxime groups per repeating unit (coded as PA66-g-PGMA-IDPAO) for the purpose of removing low uranium concentrations (1–25 mg/L) from aqueous solutions and application in simulated nuclear industry effluents was prepared by a simultaneous radiation-induced emulsion graft polymerization method. It was characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, thermogravimetric analysis, and single fiber tensile strength tester. Batch adsorption experiments were conducted to investigate the effect of initial pH, sorption isotherm, adsorption kinetics, and thermodynamics. It was found that the optimum initial pH is 5.0. The sorption isotherm followed the Langmuir isotherm. The adsorption kinetics fit the pseudo-second-order model. The thermodynamics parameters revealed that the adsorption process was spontaneous and endothermic. The sorption test performed in a simulated nuclear industry effluent demonstrated a high adsorption efficiency (about 91.3%) and selectivity for uranium.

show abstract

Section: Adsorption Kineticsmentioning

confidence: 99%

Preparation of Amidoxime-Based Nylon-66 Fibers for Removing Uranium from Low-Concentration Aqueous Solutions and Simulated Nuclear Industry Effluents

Zhou

Gao

Yang

et al. 2016

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

show abstract

“…Currently there are many different types of magnesium compounds that are being tested for applications such as CO 2 capture and storage, 44,45 the removal of hazardous materials 46 and drug delivery. 22,23 Previously, we presented the templatefree synthesis of a mesoporous magnesium carbonate (MMC) material with high surface area (up to 800 m 2 g À1 ).…”

Section: Introductionmentioning

confidence: 99%

Nanostructure and pore size control of template-free synthesised mesoporous magnesium carbonate

et al. 2016

View full text Add to dashboard Cite

show abstract

“…[4] Considering that the uranium mining and hydrometallurgy process usually causes serious water pollution, [5][6][7][8][9] it is necessary to extract uranium from industrial nuclear waste water which contains abundant and dissolved uranium (VI) for the sustainable development of nuclear power. [2,10] Many techniques, such as ion exchange, reverse osmosis, coprecipitation, have been developed to remove uranium from aqueous medium. [11][12][13] Compared with the methods above, uranium adsorption is relatively efficient and low cost.…”

Section: Introductionmentioning

confidence: 99%

“…[19] Among this adsorbents, metal oxides, such as manganese dioxide, titanium dioxide and zinc oxide, have received enormous attention due to its availability, thermostability and environmental friendliness. [10,20] As a multifunctional and environmental friendly material, ZnO has been used for uranium (VI) adsorption. [21] Recently, Kaynar et al have prepared nanoporous ZnO for removal of uranium.…”

Section: Introductionmentioning

confidence: 99%

In situ growth of ZnO nanorod arrays on cotton cloth for the removal of uranium(vi)

Zhang

et al. 2015

RSC Adv.

Self Cite

View full text Add to dashboard Cite

In situ growth of ZnO nanorod arrays on cotton cloth (ZnO/CC) was proposed to remove uranium (VI) from aqueous solution. The as-prepared adsorbent is easy separation from the reaction medium after adsorption. The effect factors for uranium adsorption, such as solution pH, initial U (VI) concentration, contact time, and temperature have been systematically investigated. The maximum adsorption capacity of uranium (VI) which was calculated by the Langmuir model at pH=5.0 and T=298 K is 431.03 mg g -1 , exhibiting its excellent uranium adsorption properties. It was observed that the kinetic data fit well to the pseudo-second-order kinetic model indicating that the rate-limiting step of adsorption process is chemical adsorption. Moreover, thermodynamic parameters [ΔH 0 =20.26 kJ mol -1 ΔG 0 =-5.66 kJ mol -1 (298 K) ΔS 0 =86.98 J mol -1 K -1 ] reveal that the uranium adsorption is endothermic and spontaneous. Therefore, the ZnO/CC is a potential adsorbent for recovery of uranium (VI) from aqueous solution.

show abstract

Magnesium carbonate basic coating on cotton cloth as a novel adsorbent for the removal of uranium

Abstract: A magnesium carbonate basic coating on a cotton cloth was prepared by a facile and cost-effective method for uranium(vi) adsorption. The maximum adsorption capacity toward uranium is 370 mg g−1, promoting a promising and effective adsorbent for practical uranium(vi) adsorption.

Cited by 8 publications

References 37 publications

Preparation of Amidoxime-Based Nylon-66 Fibers for Removing Uranium from Low-Concentration Aqueous Solutions and Simulated Nuclear Industry Effluents

Preparation of Amidoxime-Based Nylon-66 Fibers for Removing Uranium from Low-Concentration Aqueous Solutions and Simulated Nuclear Industry Effluents

Nanostructure and pore size control of template-free synthesised mesoporous magnesium carbonate

In situ growth of ZnO nanorod arrays on cotton cloth for the removal of uranium(vi)

Contact Info

Product

Resources

About