Facile sonochemical synthesis of AgO-guar gum nanocomposite as a visible light photocatalyst for the organic transformation reactions.

Silver Oxide (AgO)-Guar gum nanocomposite was fabricated via a simple sonochemical co-precipitation method. The obtained photocatalyst was characterized with various techniques such as X-ray diffraction, thermogravimetric analysis, Fourier transform infrared spectroscopy, UV-vis diffuse reflectance spectroscopy, photoluminescence spectroscopy, scanning electron microscopy and transmission electron microscopy along with energy dispersion X-ray spectroscopy. The findings have demonstrated that AgO nanoparticles are spherical of 5-20 nm and were dispersed on the surface of polysaccharide guar gum to form AgO-guar gum nanocomposite.

Sonication-assisted synthesis of a new heterostructured schiff base ligand Silver-Guar gum encapsulated nanocomposite as a visible light photocatalyst.

A heterostructured Schiff base ligand (Benzildiethylenetriamine)-Silver-Guar gum encapsulated nanocomposites was intended to prepare by simple sonication assisted reflux method. Appropriate composition of purified guar gum, Schiff base ligand and silver nitrate were used for the synthesis. The synthesised nanocomposites were characterised by photoluminescence spectrum, UV-vis diffuse reflectance spectrophotometer, Fourier transform infra-red spectroscopy, X-ray diffractometer, scanning electron microscopy and transmission electron microscopy.

Ultrasound assisted synthesis of guar gum-zero valent iron nanocomposites as a novel catalyst for the treatment of pollutants.

This study presents the synthesis of guar gum-zero valent iron nanocomposites (ZGNC) by a simple ultrasound co-precipitation method. The guar gum, one of the most cost effective due to ease of manufacture by extraction, abundant availability and high export value accounts almost 80% of total production in India. Guar gum, a natural polymer was used as binders in pharmaceutical formulations, and acts as a reducing and capping agent for the synthesis of zero valent iron nanoparticles (ZVI).

A simple approach for the sonochemical synthesis of FeO-guargum nanocomposite and its catalytic reduction of p-nitroaniline.

In this present study, a facile and green method to synthesize highly stable FeO-guar gum nanocomposite using ultrasound was reported. Thermal gravimetric analysis, fourier transform infrared spectroscopy, X-ray diffractometry, field emission scanning electron microscopy, energy dispersive spectroscopy, high resolution transmission electron microscopy and X-ray photoelectron spectroscopy were used to characterize the crystal structure, size and morphology, elemental composition, metal-metal and metal-oxygen bonds of the synthesized nanocomposites. FeO-guar gum nanocomposite with a size of ∼48nm was obtained as from TEM.