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Effect of Divalent Metals on the UV-Shielding Properties of MII/MgAl Layered Double Hydroxides.


ABSTRACT: Both the particle size and compositions have a strong influence on the UV-shielding performance of layered double hydroxides (LDHs), and they will interact with each other. To investigate the effects of divalent metal ions on the UV-shielding properties of layered double hydroxides (LDHs), MII/MgAl-CO3 LDHs (M = Mg, Co, Ni, Cu, or Zn) with the same primary and secondary particle size have been prepared and their UV-shielding performance have been studied in this work. The UV-vis spectra show that the ZnMgAl-LDHs exhibit the highest absorbance under the ultraviolet B and ultraviolet A rays among these LDH samples, but in the ultraviolet C region, the CuMgAl-LDHs show the highest absorbance and this result is in good accordance with the UV-shielding performance, which was examined by protecting the photocatalytic degradation of rhodamine B aqueous solution. Moreover, under UV rays, PP/ZnMgAl-LDH films show excellent resistance to UV aging, which can be attributed to the strong inhibition of ZnMgAl-LDHs during the production of free radicals in polypropene, as has been confirmed by electron spin resonance results.

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC6648468 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature

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Effect of Divalent Metals on the UV-Shielding Properties of M<sup>II</sup>/MgAl Layered Double Hydroxides.

Zhang Yi Y   Yang Jiaqi J   Fan Faying F   Qing Binju B   Zhu Chaoliang C   Shi Yifei Y   Fan Jie J   Deng Xiaochuan X  

ACS omega 20190611 6


Both the particle size and compositions have a strong influence on the UV-shielding performance of layered double hydroxides (LDHs), and they will interact with each other. To investigate the effects of divalent metal ions on the UV-shielding properties of layered double hydroxides (LDHs), M<sup>II</sup>/MgAl-CO<sub>3</sub> LDHs (M = Mg, Co, Ni, Cu, or Zn) with the same primary and secondary particle size have been prepared and their UV-shielding performance have been studied in this work. The U  ...[more]

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