Rearrangement of layered double hydroxide nanoplatelets during hollow colloidosome preparation

Liu, Guopeng; Liu, Shangying; Dong, Xiaoqiang; Yang, Fei; D, Sun

doi:10.1016/j.jcis.2009.08.042

Cited by 12 publications

(8 citation statements)

References 43 publications

(46 reference statements)

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“…During the slow decomposition of urea, the nanolayers of LDHs started to grow in presence of the chains of PVA. According to Liu et al., they reported that the layers of Zn‐Al LDH depend on the formation of gibbsite structure which composed of sheets with double layers of hexagonally packed O atoms. Zn 2+ ions are incorporated into the host lattice via entering the vacant octahedral holes of the lamellar gibbsite or substituting Al 3+ to build plates of LDH.…”

Section: Resultsmentioning

confidence: 99%

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Novel Strategy for Producing Nanoplatelets to be Used as Building Blocks for Shaping Nanofibers through Layered Double Hydroxides and Poly Vinyl Alcohol

et al. 2019

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It is known that the layered double hydroxides (LDHs) have grown in the nano scale. However, their morphologies are platelets in the micro scale. In order to be more applicable for designing nano-devices, the present research promotes the growth process of LDHs not only to produce nanoplatelets using the chains of poly vinyl alcohol but also to use them as building blocks for forming nanofibers. In presence of poly vinyl alcohol, Zn-Al LDHs were prepared and characterized by X-ray diffraction, scanning and transmission electron microscopy, and Infrared spectra. SEM and TEM images showed that the prepared Zn-Al-PVA LDHs have nanofibers shape. HRTEM images revealed nanoplatelets with dimension lower than 10 nm around the fibers. By thermal treatment, the layered structure of the nanoplatelets disappeared and the nanocomposites of aluminum zinc oxides were grown in shape of nanofibers. The optical properties and the photo activities of the prepared nanoplatelets and nanofibers were examined and compared with their counterpart nanoparticles through photocatalytic degradation of colored dyes. The experimental results showed that the nanofibers were very active for photocatalytic degradation of green dyes. Finally, this study concluded that polymer chains could be used as seeds for growing nanoplatelets, which acted as building blocks in the nano scale to form active nanofibers for environmental applications. Also, this approach will be useful for building nanodevices.

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Section: Resultsmentioning

confidence: 99%

“…However, the simultaneous formation of nuclei and aging usually leads to large crystal growth . For instance, the urea hydrolysis method could produce large LDH hexagonal platelets of 4 mm or 2–20 mm …”

Section: Introductionmentioning

confidence: 99%

Novel Strategy for Producing Nanoplatelets to be Used as Building Blocks for Shaping Nanofibers through Layered Double Hydroxides and Poly Vinyl Alcohol

et al. 2019

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“…Then the diluted sample suspensions were transferred on a carbon-coated copper film for observation under the electron microscope. The purpose of these procedures is to remove the oil phase which would have a negative effect on TEM machine, similar to Liu's procedures [30].…”

Section: Preparation Stability and Characterization Of Emulsionsmentioning

confidence: 99%

In situ formed Mg(OH)2 nanoparticles as pH-switchable stabilizers for emulsions

Tan

Wang

et al. 2011

Journal of Colloid and Interface Science

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“…[108][109][110][111][112][113][114][115][116][117][118][119][120][121][122][123][124] A hallmark of colloidosomes is their robust structure, as their building blocks are solid particles, which endow them with enhanced mechanical strength against coalescence. Another advantage associated with colloidosomes is that the permeability can be adjusted by changing the size of the particles.…”

Section: Colloidosomesmentioning

confidence: 99%