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Int. J. Mol. Sci. 2012, 13(6), 7328-7342; doi:10.3390/ijms13067328
Article

Herbicide-Intercalated Zinc Layered Hydroxide Nanohybrid for a Dual-Guest Controlled Release Formulation

1,* , 1
, 2
 and 1,3
Received: 11 April 2012; in revised form: 6 June 2012 / Accepted: 7 June 2012 / Published: 13 June 2012
(This article belongs to the Section Material Sciences and Nanotechnology)
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Abstract: 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.
Keywords: 4-(2,4-dichlorophenoxy) butyrate; 2-(3-chlorophenoxy) propionate; zinc layered hydroxide; simultaneous release 4-(2,4-dichlorophenoxy) butyrate; 2-(3-chlorophenoxy) propionate; zinc layered hydroxide; simultaneous release
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Hussein, M.Z.; Abdul Rahman, N.S.S.; Sarijo, S.H.; Zainal, Z. Herbicide-Intercalated Zinc Layered Hydroxide Nanohybrid for a Dual-Guest Controlled Release Formulation. Int. J. Mol. Sci. 2012, 13, 7328-7342.

AMA Style

Hussein MZ, Abdul Rahman NSS, Sarijo SH, Zainal Z. Herbicide-Intercalated Zinc Layered Hydroxide Nanohybrid for a Dual-Guest Controlled Release Formulation. International Journal of Molecular Sciences. 2012; 13(6):7328-7342.

Chicago/Turabian Style

Hussein, Mohd Zobir; Abdul Rahman, Nor Shazlirah Shazlyn; Sarijo, Siti H.; Zainal, Zulkarnain. 2012. "Herbicide-Intercalated Zinc Layered Hydroxide Nanohybrid for a Dual-Guest Controlled Release Formulation." Int. J. Mol. Sci. 13, no. 6: 7328-7342.


Int. J. Mol. Sci. EISSN 1422-0067 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert