One-pot synthesis of graphene oxide and Ni-Al layered double hydroxides nanocomposites for the efficient removal of U(VI) from wastewater

Yu, Shujun; Wang, Jian; Song, Shuang; Sun, Kunyu; Li, Jun; Wang, Xiangxue; Chen, Zhongshan

doi:10.1007/s11426-016-0420-8

Cited by 119 publications

(29 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Moreover, the porous template covering the surface of GO can be observed clearly by TEM after filtering and before burning, and the pore size of porous template depends on the concentration of Zn(NO 3 ) 2 ·6H 2 O (Figure a). As can be seen from Figure b, the diffraction peaks at 2θ = 10.8° and 21.6° exhibit the (003) and (006) crystal planes of Zn layered double hydroxide (LDH), confirming that the Zn LDH layer is the porous template covering the surface of GO. Moreover, with an increase in concentration of Zn(NO 3 ) 2 ·6H 2 O addition, the peak intensity of the (003) and (006) crystal planes first increases and then decreases, the similar results are found into NO 3 − peak intensity in FT‐IR (≈1400 cm −1 , Figure c).…”

Section: Resultsmentioning

confidence: 72%

Combustion Fabrication of Nanoporous Graphene for Ionic Separation Membranes

Zhang

Tan

et al. 2018

Adv Funct Materials

View full text Add to dashboard Cite

Porous graphene membranes hold great promise for high-selectivity separation. Moreover, their practical application is limited by the lack of a simple and efficient method for the synthesis of porous graphene. Here, a rapid and scalable method is developed for the synthesis of porous graphene via partial combustion of graphene oxide imperfectly covered by hydrotalcite. This method is not only less energy-and time-intensive than existing ones, but also allows precise control of pore size. Remarkably, the resulting membrane of porous graphene exhibits high selectivity for K + and Na + (α = 3.84) separation. Hence, this facile route for preparing membranes of porous graphene oxide might direct application membranes in environmental, energy, desalination, and biomedical fields.

show abstract

Section: Resultsmentioning

confidence: 72%

Combustion Fabrication of Nanoporous Graphene for Ionic Separation Membranes

Zhang

Tan

et al. 2018

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

“…The adsorbent surface is positively charged below pH zpc and negatively charged above the pH zpc. , Therefore, the maximum removal of fluoride for 100 mg L −1 fluoride occurred at pH 5.0 owing to the protonated adsorbent surface and above this pH the percentage removal decreases due to the repulsive interaction between fluoride and negatively charged adsorbent surface. At low levels of fluoride − , the observed pH range was 3.0‐7.0 for effective defluoridation.…”

Section: Resultsmentioning

confidence: 98%

Probing the Interaction between Fluoride and the Polysaccharides in Al(III)- and Zr (IV)-Modified Tea Waste by Using Diverse Analytical Characterization Techniques

et al. 2017

View full text Add to dashboard Cite

The objective of this study was to assess the efficacy of interaction between fluoride and a household tea waste (HTW) material modified using aluminium sulfate and zirconyl oxy chloride. Tea waste is an inexpensive source of biomass comprising lignin, cellulose and hemicelluloses, condensed tannins and proteins. The incorporation of Al (III) and Zr (IV) was accomplished by dilute nitric acid hydrolysis of the tea waste material. The polymeric aluminium and zirconium cations interact with tea waste through the surface hydroxyl, carbonyl, carboxylic functional groups and glycosidic linkages. Since, Al (III) and Zr (IV) ion are hard acids, they interact with the hard base fluoride effectively. The mechanism was supported through Thermogravimetric analysis (TGA), Fourier Transform Infra‐Red (FT‐IR) spectrometry, Fourier Transform Raman (FT‐Raman) spectrometry, Energy Dispersive X ray spectrometry (EDS), X‐ray Diffraction (XRD) and X‐ray Photo Electron Spectroscopy (XPS) techniques. Preliminary batch adsorption studies resulted in linear and nonlinear Langmuir adsorption capacities as 17.51 and 17.54 mg g−1 respectively at pH 7.0. The sustainable adsorbent shows prospective application for defluoridation of water.

show abstract

“…However, once U VI ,E u III ,S r II ,T h III ,a nd other radionuclides have entered the environment, their toxicity,r adioactivity,c arcinogenesis, and mutagenesis cause irreversible damage. [70,74,75] The low cost, facile synthesis processes, and high removal capacities of G@LDH materials give them great potentiala ss orbents fort he decontamination of radionuclides in practical applications. Yu et al synthesized nanocomposites of GO and NiAl-LDH (GO@LDH) by using the urea hydrothermal method.…”

Section: Removal Of Radionuclidesmentioning

confidence: 99%

“…Yu et al synthesized nanocomposites of GO and NiAl-LDH (GO@LDH) by using the urea hydrothermal method. [70] The U VIelimination behavior of GO@LDHw as investigated under various conditions. The maximum removal was 159.7 mg g À1 , which was highert han those of GO (92.0 mg g À1 )a nd pure NiAl-LDH (69.0 mg g À1 )a lone.…”

Section: Removal Of Radionuclidesmentioning

confidence: 99%

See 1 more Smart Citation

Recent Advances in Composites of Graphene and Layered Double Hydroxides for Water Remediation: A Review

Pang

Wang

et al. 2019

Chemistry An Asian Journal

Self Cite

159

View full text Add to dashboard Cite

Composites of layered double hydroxides( LDHs) and graphene (G) are excitingn anomaterials because of their uniques urface structures and excellent physicochemical properties. Such materials offer the advantages of both components,t hat is, the large surfacea rea and ample functional groups of graphene and the outstanding layered structure and ion-exchangeability of layered double hydroxides, whilst effectively avoiding the coagulation of graphene and the instability of pristine layered double hydroxides,a nd they have been widelyi nvestigated for applications in water remediation. This Minireview begins by summarizing the most common methods for the synthesis of G@LDH composites, including hydrothermalt reatment, coprecipitation, and in situ growth. Then, we review the adsorption and catalytic ability of G@LDH materials in the removal of contaminants from water,s uch as heavy metal ions, radionuclides, dyes, and other organic pollutants. Finally,w ed iscusst he challenges and offer ap erspective on the directions of future research of G@LDH composites.

show abstract

One-pot synthesis of graphene oxide and Ni-Al layered double hydroxides nanocomposites for the efficient removal of U(VI) from wastewater

Cited by 119 publications

References 35 publications

Combustion Fabrication of Nanoporous Graphene for Ionic Separation Membranes

Combustion Fabrication of Nanoporous Graphene for Ionic Separation Membranes

Probing the Interaction between Fluoride and the Polysaccharides in Al(III)- and Zr (IV)-Modified Tea Waste by Using Diverse Analytical Characterization Techniques

Recent Advances in Composites of Graphene and Layered Double Hydroxides for Water Remediation: A Review

Contact Info

Product

Resources

About