PREPARATION OF LAYERED MATERIAL Zn/Al-LAYERED DOUBLE HYDROXIDE-FERULATE NANOCOMPOSITES

A new layered material-drug nanocomposite namely, Zn/Al-layered double hydroxide-ferulate (Zn/Al-LDH-FA) has been synthesized using the ion exchange method. PXRD pattern and elemental analysis showed that Zn/Al-LDH-FA nanocomposite yielded high crystalline and pure phase material with a basal spacing of 17.4 Å and anion loading of 35.9 % respectively. The FTIR spectra reveal the presence of FA in the interlayer of Zn/Al-LDH, while the thermal analysis shows that the Zn/Al-LDH has enhanced the thermal stability of FA in the interlayer compared to its pure form. Anionic FA intercalated into the interlayer of Zn/Al-LDH as vertical monolayer with the carboxylate groups pointing towards the Zn/Al-LDHs layers. The intercalation of FA into the interlayer of Zn/Al-LDH is also supported by morphology analysis, FESEM.Keywords: Synthesis, Intercalation, Layered Double Hydroxide, Ferulic AcidABSTRAKSebuah bahan-obat berlapis nanokomposit baru yaitu, Zn/Al-berlapis ganda hidroksida-ferulate (Zn/Al-LDH-FA) telah disintesis dengan menggunakan metode pertukaran ion. Pola PXRD dan analisis unsur menunjukkan bahwa Zn/Al-LDH-FA nanokomposit menghasilkan kristalinitas tinggi dan material fase murni dengan jarak basal dari 17,4 Å dan pemuatan anion 35,9%. Spektrum FTIR mengungkapkan adanya FA di lapisan Zn/Al-LDH, sedangkan analisis termal menunjukkan bahwa Zn/Al-LDH telah meningkatkan stabilitas termal FA di antar lapisan dibandingkan dengan bentuk murninya. Anionik FA diselingi ke dalam interlayer Zn/Al-LDH sebagai monolayer vertikal dengan gugus karboksilat menunjuk ke arah lapisan Zn/Al-LDHs. Interkalasi dari FA ke dalam interlayer Zn/Al-LDH juga didukung oleh analisis morfologi, FESEM.Kata kunci: Sintesis, interkalasi, hidroksida berlapis ganda, asam feruli

Preparation of zinc layered hydroxide–chloroacetate nanohybrid using direct reaction method

The intercalation of chloroacetic acid (CAA) into the interlayer gallery of zinc layered hydroxide has been achieved via a facile direct reaction method. The nanohybrid synthesised, zinc layered hydroxide-chloroacetate was characterised using Powder X-ray diffraction patterns (PXRD), which demonstrated the progressive evolution of the nanohybrid structure, as the CAA molarity were increased from 0.05 to 0.3 M. Sharp and symmetrical peaks of 0.3 M CAA were observed in the PXRD pattern. The emergence of intercalation peak, with basal spacing of 14.3 Å signifying the success intercalation of chloroacetate anions into the interlayer space of the host. The intercalation was also validated by FTIR spectroscopy and CHNS elemental analyser. The increased thermal stability of zinc layered hydroxide-chloroacetate nanohybrid was confirmed by thermogravimetric analysis

A brief review on recent graphene oxide-based material nanocomposites: synthesis and applications

In a past few years, more focus has been given to graphene, especially for its facile synthesis, novel hybrids materials and applications. Recently, researchers' attention has also focused on graphene oxide (GO) and reduced graphene oxide (rGO) nanocomposites, which lead to the development of various applications. Their superb and impressive characteristic makes them suitable candidates to be hybridized with polymer, metal oxide, and biomaterials. In this brief review, we will run through the accomplishments of effective approaches for synthesizing graphene oxide-based material nanocomposites together with their recently developed applications

Synthesis and Application of Zinc Layered Hydroxide: A Short Review

Zinc Layered hydroxide (ZLH) is a layered material easily synthesized with a structure identical to brucite-like material. Due to the exchangeable anions in the interlayer compensating for the positive charge of a brucite-type layer, ZLH provides a wide application in many fields. This review focuses on the properties and method of synthesis of ZLH by giving an overview of intercalated guest anion in the interlayer of ZLH. The further discussion involved the application of intercalated guest anion in zinc layered hydroxide layer and its properties as a sensitizer, controlled release biomedical, and agriculture to provide the scientific community for research and development by giving current findings. This brief review also presents the success of anion intercalation for controlled release along with the kinetic model involved, which increases the bioavailability and effectiveness of the nanocomposite on its target. It shows the development of research on ZLH nanocomposites toward the sustainability of human life and the environment. This study implies that it is a source of knowledge for researchers about zinc-layered hydroxide materials involving synthesis methods and their application to produce more beneficial nanomaterials

Preparation of zinc layered hydroxide–chloroacetate nanohybrid using direct reaction method

The intercalation of chloroacetic acid (CAA) into the interlayer gallery of zinc layered hydroxide has been achieved via a facile direct reaction method. The nanohybrid synthesised, zinc layered hydroxide-chloroacetate was characterised using Powder X-ray diffraction patterns (PXRD), which demonstrated the progressive evolution of the nanohybrid structure, as the CAA molarity were increased from 0.05 to 0.3 M. Sharp and symmetrical peaks of 0.3 M CAA were observed in the PXRD pattern. The emergence of intercalation peak, with basal spacing of 14.3 Å signifying the success intercalation of chloroacetate anions into the interlayer space of the host. The intercalation was also validated by FTIR spectroscopy and CHNS elemental analyser. The increased thermal stability of zinc layered hydroxide-chloroacetate nanohybrid was confirmed by thermogravimetric analysis

Synthesis and characterization of mesoporous zinc layered hydroxide-isoprocarb nanocomposite

The ion exchange method was used to intercalate a poor water-soluble insecticide, isoprocarb into zinc layered hydroxide (ZLH). PXRD analysis indicated the successful intercalation with good crystallinity for the resulting nanocomposite, with a basal spacing of 33.1 Å. FTIR analyses showing the resemblance of an absorption peak of the nanocomposite with the host and the guest anion. The thermal analysis confirmed that the nanocomposite had better thermal stability compared to the pristine isoprocarb. The nanocomposite also characterized by elemental and surface morphology analysis. The surface analyses of the host and nanocomposite showed mesoporous-type material characteristics. On the whole, the intercalation process decreased the pore size of the nanocomposite compared to the pristine host, layered zinc layered hydroxide-sodium dodecyl sulphate (ZLH-SDS). The obtained material is believed has a great potential as an environmentally friendly insecticide. Keywords: Intercalation, Characterization, Zinc layered hydroxide, Isoprocarb, Mesoporou