Abstract
A new layered-double hydroxide-3-(4-hydroxyphenyl) propionate (LDH-HPP) has been synthesized by intercalation of 3-(4-hydroxyphenyl) propionic acid (HPP) into Zn-Al-layered double hydroxide (LDH) by ion-exchange method. PXRD, FTIR, TGA/DTG, compositional studies and FESEM were used to characterize the synthesized nanocomposite. The intercalation of HPP into the interlayer gallery space of LDH was characterized by x-ray diffractogram showed expanded basal spacing of the value of 17.1 Å. The FTIR spectra of LDH-HPP nanocomposite synthesis by 0.025M HPP resembled a mixture of both FTIR spectra of HPP and LDH. Thermal analysis of LDH-HPP nanocomposite shows a better thermal stability as compared to the pure HPP, which proved that the intercalation of HPP into LDH interlayer enhanced the thermal stability of the HPP.
Highlights
Layered nanomaterials are getting lots of attention due to their unique structural felexibility, which is useful for the development of new hybrid materials with controlled functionality [1]
This indicated that the Zn to Al molar ratio in the resulting nanocomposite was adjusted according to the intercalation of HPP anion into the layered double hydroxide (LDH) interlayer
A new nanocomposite compound in which is HPP was successfully intercalated into LDH interlayer by ion-exchange method
Summary
Layered nanomaterials are getting lots of attention due to their unique structural felexibility, which is useful for the development of new hybrid materials with controlled functionality [1]. The structure of LDH forms two-dimensional crystals consisting of thin crystalline layered that stacked by van der Waals and/or weak electrostatic interaction; various guest anions can be inserted into the LDH interlayer galleries [7]. 3-(4-hydroxyphenyl)propionic acid (HPP) is an auxinic growth regulator, it can interfere with RNA production and change the properties and development in the plasma membrane. These herbicides can wash into the stream or infiltrate the soil eventually contaminating ground water reserves. 3-(4-hyroxyphenyl)propionic acid (HPP) has been intercalated between the interlayer of LDH by the ion - exchange method. The LDH-HPP nanocomposite was characterized by PXRD, FTIR, TGA/DTG, compositional studies and FESEM to confirm the intercalation. Surface morphology of the sample was studied by using field emission scanning electron microscope (FESEM) model HITACHI SU 8020 UHR
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