Synthesis of caal-3,4-dichlorophenoxyacetic acid layered double hydroxides (LDH) via co-precipitation method and its controlled release activities / Aqmar Aqeem Azhar
Layered double hydroxide or hydrotalcite-like compound is a material that can be used to as a support for controlled release formulation and become an ideal solution to solve environmental problem arise from agrochemical. In this study, synthesis of CaAl-3, 4 Dichlorophenoxyacetic acid was successfu...
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| Format: | Student Project |
| Language: | English |
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Faculty of Applied Sciences
2017
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| Online Access: | http://ir.uitm.edu.my/id/eprint/26854/ http://ir.uitm.edu.my/id/eprint/26854/1/PPb_AQMAR%20AQEEM%20AZHAR%20AS%20N%2017_5.pdf |
| Summary: | Layered double hydroxide or hydrotalcite-like compound is a material that can be used to as a support for controlled release formulation and become an ideal solution to solve environmental problem arise from agrochemical. In this study, synthesis of CaAl-3, 4 Dichlorophenoxyacetic acid was successfully attained by the coprecipitation method with the molar ration of Ca to Al; R=2 at different concentration of 3,4-Dichlorophenoxyacetic acid. The pH for synthesis this nanocomposites is 13 ± 0.05 and kept in constant. The result obtained from the PXRD spectra showed that the basal spacing for the nanocomposite was increased from 8. 7 6 A to 15 .4 7 A. Other than that, FTIR spectrum of the synthesis of CaAl- 3, 4-D nanocomposite showed the similarities of CaAl-LDH and the pure 3,4-D absorption bands which confirm the 3,4-D inserted into LDH interlayer. Besides that, there were also disappearance of the nitrate peak and formation of new peak which indicates the C=O stretching. For controlled release study, 3,4-D more efficient release in aqueous solution of Na2CO3 compare to NaCl with percentage release is 20.65%. |
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