Graphene oxide functionalized with nano hydroxyapatite for the efficient removal of U(VI) from aqueous solution

Su, Minhua; Liu, Zequan; Wu, Yanhong; Peng, Hairong; Tao, Ou; Huang, Shuai; Song, Gang; Kong, Lingjun; Chen, Nan; Chen, Diyun

doi:10.1016/j.envpol.2020.115786

Cited by 69 publications

(10 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As illustrated in Figures b and b, the high-resolution spectra of U 4f can be distinguished into two peaks of U 4f 7/2 (at ∼382 eV) and U 4f 5/2 (at ∼392 eV). , Additionally, the satellite peak (at 384.15 eV) of U 4f 7/2 appeared with low intensity, which indicated that the chemical interaction with the surface produced the surface complex with oxygen-containing functional groups. ,, The high-resolution spectra of Eu 3d (Figures d and f) were located at ∼1135 and ∼1165 eV, which were assigned to Eu 3d 5/2 and Eu 3d 3/2 , respectively. , However, the relative intensity of the N 1s spectra decreased and the peak location shifted to the lower binding energy after adsorption, which was attributed to the chelating reaction of UO 2 2+ /Eu 3+ ions on the nitrogen-containing functional groups . Specifically, the N 1s peak of NH 2 -MIL-125(Ti) disappeared after UO 2 2+ adsorption.…”

Section: Resultsmentioning

confidence: 92%

“…As illustrated in Figures 6b and 7b, the high-resolution spectra of U 4f can be distinguished into two peaks of U 4f 7/2 (at ∼382 eV) and U 4f 5/2 (at ∼392 eV). 53,57 Additionally, the satellite peak (at 384.15 eV) of U 4f 7/2 appeared with low intensity, which indicated that the chemical interaction with the surface produced the surface complex with oxygen-containing functional groups. 3,58,59 The high-resolution spectra of Eu 3d (Figures 6d and 7f) were located at ∼1135 and ∼1165 eV, which were assigned to Eu 3d 5/2 and Eu 3d 3/2 , respectively.…”

Section: +mentioning

confidence: 99%

See 1 more Smart Citation

Construction of Core–Shell MOFs@COF Hybrids as a Platform for the Removal of UO₂²⁺ and Eu³⁺ Ions from Solution

Zhong

Liu

Liang

et al. 2021

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

The binary nanocomposites of metal/covalent–organic frameworks (NH2-MIL-125(Ti)@TpPa-1) were constructed by solvothermal method, which was developed as a multifunctional platform with adsorption and photocatalysis for radionuclides removal. The batch experiments and physicochemical property (FT-IR, XRD, SEM, TEM, XPS, etc.) corroborated: (i) core–shell NH2-MIL-125(Ti)@TpPa-1 had a more stable, multilayer pore structure and abundant active functional groups; (ii) NH2-MIL-125(Ti)@TpPa-1 had fast a removal rate, as well as a high adsorption capacity of 536.73 mg (UO2 2+)/g and 593.97 mg (Eu3+)/g; (iii) the pseudo-second-order and Langmuir model provided a more reasonable description, indicating the immobilization process was endothermic, spontaneous chemisorption; (iv) the adsorption mechanism was chelation and electrostatic attraction, ascribed to the nitrogen/oxygen-containing functional groups. These results illustrated that NH2-MIL-125(Ti)@TpPa-1 was a prospective adsorbent for the remediation polluted by radionuclides. In addition, the research provided the theoretical basis for further investigation on the UO2 2+(VI) photoreduction.

show abstract

Section: Resultsmentioning

confidence: 92%

Section: +mentioning

confidence: 99%

Construction of Core–Shell MOFs@COF Hybrids as a Platform for the Removal of UO₂²⁺ and Eu³⁺ Ions from Solution

Zhong

Liu

Liang

et al. 2021

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…S2 †). 41 Additionally, the emergence of a peak at 3.19 keV to uranium was observed in the EDS spectrum (Fig. S3 †).…”

Section: U(vi) Adsorption Performancementioning

confidence: 94%

Ion-imprinted guanidine-functionalized zeolite molecular sieves enhance the adsorption selectivity and antibacterial properties for uranium extraction

Zhao

Lǐ

et al. 2022

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…The GO/HAP composite's enhanced U(VI) adsorption capacity was most likely due to the synergistic effect after functionalizing with nanostructured HAP. [74] Similarly, through post-decoration with amidoxime functionalized diaminomaleonitrile (DM-AO) onto GO, the U(VI) adsorption capacity of the GO-DM-AO reached 935 mg/g, which was increased by 209% compared with that of the pristine GO. The increased adsorption capability of the GO-DM-AO was due to the introduction of organic groups on the GO to increase the number of binding spots and the activation of the inactive points on the GO by cycloaddition reaction.…”

Section: Adsorption Capacities Of Go-based Nanomaterialsmentioning

confidence: 99%

Graphene Oxide-based Nanomaterials for Uranium Adsorptive Uptake

Liu¹,

Mao²

2021

ES Mater. Manuf.

View full text Add to dashboard Cite

The growth of nuclear power generation and the necessity to acquire uranium reserves for energy security and pollution regulation for environmental protection put much emphasis on the removal and recovery of uranium from aqueous solutions. Adsorption has been proved to be a promising method for this purpose method because of its high adsorption efficiency, easy operation, low cost, reusability and availability of massive adsorbents. Among a wide variety of adsorbents, graphene oxide (GO) has demonstrated excellent adsorption potential for uranium uptake and recovery due to its unique 2D structure, high specific surface area and abundant oxygen-containing functional groups. Regarding the functional groups, it can make GO with high dispersion and hydrophilicity and participate in the complexation of uranium, leading to high adsorption efficiency for uranium. In this review, the research status and progress of GO-based nanomaterials for uranium adsorption are summarized. Their adsorption capacities, influencing factors, kinetics, isotherms and thermodynamics are compared and discussed. The microscopic mechanisms of uranium adsorption onto these GO-based nanomaterials are elaborated at molecular level by spectral analysis, surface complexation models, and theoretical calculations. Meanwhile, the challenges and research trends in the study of uranium adsorption by GO-based nanomaterials are pointed out. We believe that our focused review provides not only a summarizing reference on the current status of uranium removal and recovery by GObased nanomaterials, but also future directions for related follow-up research and practical applications.

show abstract

Graphene oxide functionalized with nano hydroxyapatite for the efficient removal of U(VI) from aqueous solution

Cited by 69 publications

References 54 publications

Construction of Core–Shell MOFs@COF Hybrids as a Platform for the Removal of UO₂²⁺ and Eu³⁺ Ions from Solution

Construction of Core–Shell MOFs@COF Hybrids as a Platform for the Removal of UO₂²⁺ and Eu³⁺ Ions from Solution

Ion-imprinted guanidine-functionalized zeolite molecular sieves enhance the adsorption selectivity and antibacterial properties for uranium extraction

Graphene Oxide-based Nanomaterials for Uranium Adsorptive Uptake

Contact Info

Product

Resources

About

Graphene oxide functionalized with nano hydroxyapatite for the efficient removal of U(VI) from aqueous solution

Cited by 69 publications

References 54 publications

Construction of Core–Shell MOFs@COF Hybrids as a Platform for the Removal of UO22+ and Eu3+ Ions from Solution

Construction of Core–Shell MOFs@COF Hybrids as a Platform for the Removal of UO22+ and Eu3+ Ions from Solution

Ion-imprinted guanidine-functionalized zeolite molecular sieves enhance the adsorption selectivity and antibacterial properties for uranium extraction

Graphene Oxide-based Nanomaterials for Uranium Adsorptive Uptake

Contact Info

Product

Resources

About

Construction of Core–Shell MOFs@COF Hybrids as a Platform for the Removal of UO₂²⁺ and Eu³⁺ Ions from Solution

Construction of Core–Shell MOFs@COF Hybrids as a Platform for the Removal of UO₂²⁺ and Eu³⁺ Ions from Solution