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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1095Preparation of Sodium Paeonolsilate Intercalated...

Preparation of Sodium Paeonolsilate Intercalated into Layered Double Hydroxides and its Release Properties

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Abstract:

A controlled release composite has been prepared by intercalation of sodium paeonolsilate (PAS) into Mg/Al layered double hydroxide (LDH) with the molar ratio (M²⁺/M³⁺) of 2:1. The powder X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR) confirm the intercalation of PAS into the galleries of LDH. The chemical composites of PAS-LDH were revealed by elemental analysis. Release tests of the PAS-LDH composite showed that no burst release phenomenon occurred at the beginning stage and a high release ratio of PAS (89.8%) was obtained, exhibiting controlled release behavior. Furthermore, the parabolic diffusion model was used to simulate the release kinetics of PAS from the LDH carrier, indicating that the intraparticle diffusion via ion-exchange is the rate-determining step in the release process. It is significance in this work for introducing the PAS-LDH composite to develop antifouling materials with long-term activity.

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Advances in Materials and Materials Processing V

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Periodical:

Advanced Materials Research (Volume 1095)

Pages:

349-354

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1095.349

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Online since:

March 2015

Authors:

Liang Hua Gu, Hong Qing Song, Zhi Yong Sun*, Ji Yong Zheng, Jin Wei Zhang, Li Wang, Feng Ling Xu, Cun Guo Lin

Keywords:

Intercalation, Layered Double Hydroxide, Release Behavior, Sodium Paeonolsilate

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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