Plasma modification of ZnMgAl-LDHs for adsorption property improvement

Tao, Xumei; Liu, Delu; Song, Jiajia; Qing-guo, YE; Xu, Dongyan

doi:10.1016/j.jtice.2017.02.009

Cited by 41 publications

(13 citation statements)

References 43 publications

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“…Among the common absorbents, LDH has been widely studied because of their low cost, high efficiency, and easy preparation [23][24][25]. However, due to the lack of functional groups and structural components of pristine LDH, the absorption capacity and further applications of LDH is limited [26]. Compared with that of pristine LDH, functionalized LDH has better absorption capacity.…”

Section: Introductionmentioning

confidence: 99%

Functionalized layered double hydroxide applied to heavy metal ions absorption: A review

Tang

Qiu

Lü

et al. 2020

Nanotechnology Reviews

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The use of functional material can help mitigate the pollution by heavy metals, which presents an array of risks to human production and life. This work provides a comprehensive review of the current knowledge on functionalized layered double hydroxide (LDH) as a heavy metal absorption material, by synthesizing the information from a total of 141 relevant publications published since 2005. LDH provides a potentially highly efficient method to adsorb heavy metal ions, which is simple to prepare and of low cost. The lack of functional groups and structural components of pristine LDH, however, limits the absorption capacity and widespread applications of LDH. Through intercalation, surface modification, or loading on substrates, functional groups or structural components are introduced into the pristine LDH to prepare functionalized LDH. In this process, the hydroxyl group and the valence state of [Mg(OH)6] octahedrons play a crucial role. Functionalized LDH can be endowed with selective absorption capacity and enhanced stability and recyclability. After adsorbing heavy metal ions, functionalized LDH can be readily separated from the liquid phase. These aspects are discussed, along with the structure and composition, shape and size, and synthesis methods and research tools of LDH. This work concludes with the discussion of preparation and utilization and a look to the future in terms of identified research needs regarding the preparation, use, and recycling (or upcycling) of economical and environmental-friendly LDH.

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Section: Introductionmentioning

confidence: 99%

Functionalized layered double hydroxide applied to heavy metal ions absorption: A review

Tang

Qiu

Lü

et al. 2020

Nanotechnology Reviews

View full text Add to dashboard Cite

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“…In addition, the isotherms exhibit H3-type hysteresis loops which are relevant to formation of non-uniform mesopores due to the aggregates of platelike particles. [33] To our knowledge, the porous structure will facilitate the mass transfer for heterogeneous catalysis. The specific surface areas of ZIF-(1:0), ZIF-(1:3.5) and ZIF-(0:1) are 1728.62, 988.15 and 3.5 m 2 g −1 , respectively.…”

Section: Characterization Of Compositesmentioning

confidence: 99%

Hollow N‐ZIFs@NiCo‐LDH as highly efficient catalysts for 4‐nitrophenol and dyes

Lin

Duan

Zhao

2020

Applied Organom Chemis

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N‐ZIF‐(1:0)@NiCo‐LDH, N‐ZIF‐(1:3.5)@NiCo‐LDH and N‐ZIF‐(0:1)@NiCo‐LDH were prepared by mixing solvents in various volume ratios (Vmethanol:Vwater = 1:0, 1:3.5 and 0:1) when synthesizing precursors. These composite materials were characterized using scanning and transmission electron microscopies, X‐ray diffraction, X‐ray photoelectron spectroscopy and nitrogen adsorption–desorption measurements, and investigated as catalysts for reduction of 4‐nitrophenol, methyl orange and methylene blue. The NaBH4 concentration as an important factor that may affect catalytic activity for reduction of 4‐nitrophenol was examined. Under optimal experimental conditions, the excellent catalytic activity of the N‐ZIF‐(0:1)@NiCo‐LDH composite, compared to that of N‐ZIF‐(1:0)@NiCo‐LDH and N‐ZIF‐(1:3.5)@NiCo‐LDH composites, could be attributed to the presence of graphitic nitrogen. In addition, compared with previously reported catalysts, all catalysts prepared show excellent catalytic activity owing to the unique structure exposing more active sites.

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“…In order to meet higher practical needs and more stringent application conditions, the modification of hydrotalcite has attracted a lot of attention in recent years. Due to the special structure, superior properties and various preparation methods of hydrotalcite, the hydrotalcite modification methods are also various, including structural modification and intercalation guest modification and so on . For example, Huang et al .…”

Section: Adsorption Properties Of Hydrotalcite‐derived Materials In Smentioning

confidence: 99%

Research Progress in the Field of Adsorption and Catalytic Degradation of Sewage by Hydrotalcite‐Derived Materials

Pan

Tian

et al. 2019

The Chemical Record

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With the rapid development of industry and agriculture and the greatly improved living conditions, the resultant gradually deteriorated environments threaten the human beings. Refractory or even toxic pollutants, which are from different industries such as printing and dyeing, pesticides, chemicals, petrochemicals, plastics and rubber, seriously threat the ecosystems and human health. Having the advantages of flexible composition, unique structure, high stability, memory effect, easy preparation and low cost, hydrotalcite compounds have a great potential in sewage degradation and environmental protection. This study focuses on the adsorption and catalytic properties (such as photocatalysis, electrocatalysis and photoelectrocatalysis) of hydrotalcite-derived materials for treating organic, inorganic and heavy metal ion sewage. The types of adsorption and catalysis, and the effects of various influencing factors on the degradation efficiency were discussed as well.Wiley Online Library 355 Figure 13. The photoelectrocatalytic mechanism of organic pollutant MB over the ZNI-1-MMO-1.5 V photoelectrode.

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Plasma modification of ZnMgAl-LDHs for adsorption property improvement

Cited by 41 publications

References 43 publications

Functionalized layered double hydroxide applied to heavy metal ions absorption: A review

Functionalized layered double hydroxide applied to heavy metal ions absorption: A review

Hollow N‐ZIFs@NiCo‐LDH as highly efficient catalysts for 4‐nitrophenol and dyes

Research Progress in the Field of Adsorption and Catalytic Degradation of Sewage by Hydrotalcite‐Derived Materials

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