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Herbicide-intercalated zinc layered hydroxide nanohybrid for a dual-guest controlled release formulation


Hussein, Mohd Zobir and Abdul Rahman, Nor Shazlirah Shazlyn and Sarijo, Siti Halimah and Zainal, Zulkarnain (2012) Herbicide-intercalated zinc layered hydroxide nanohybrid for a dual-guest controlled release formulation. International Journal of Molecular Sciences, 13 (6). pp. 7328-7342. ISSN 1661-6596; ESSN: 1422-0067


Herbicides, namely 4-(2,4-dichlorophenoxy) butyrate (DPBA) and 2-(3-chlorophenoxy) propionate (CPPA), were intercalated simultaneously into the interlayers of zinc layered hydroxide (ZLH) by direct reaction of zinc oxide with both anions under aqueous environment to form a new nanohybrid containing both herbicides labeled as ZCDX. Successful intercalation of both anions simultaneously into the interlayer gallery space of ZLH was studied by PXRD, with basal spacing of 28.7 Å and supported by FTIR, TGA/DTG and UV-visible studies. Simultaneous release of both CPPA and DPBA anions into the release media was found to be governed by a pseudo second-order equation. The loading and percentage release of the DPBA is higher than the CPPA anion, which indicates that the DPBA anion was preferentially intercalated into and released from the ZLH interlayer galleries. This work shows that layered single metal hydroxide, particularly ZLH, is a suitable host for the controlled release formulation of two herbicides simultaneously.

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Official URL or Download Paper: https://www.mdpi.com/1422-0067/13/6/7328

Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Institute of Advanced Technology
DOI Number: https://doi.org/10.3390/ijms13067328
Publisher: MDPI
Keywords: 4-(2,4-dichlorophenoxy) butyrate; 2-(3-chlorophenoxy) propionate; Zinc layered hydroxide; Simultaneous release
Depositing User: Nabilah Mustapa
Date Deposited: 01 Jun 2020 03:13
Last Modified: 01 Jun 2020 03:13
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3390/ijms13067328
URI: http://psasir.upm.edu.my/id/eprint/77992
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