T HIS work describes the preparation and characterization of Sodium Alginate (NaAlg) treated with Titanium dioxide (TiO 2)-Carbon nanotube(CNT). The morphology of composites was investigated by scanning electron microscope (SEM) showing the CNT coated with NaAlg and the TiO 2 dispersed in the NaAlg matrix. Fourier Transform Infrared Spectroscopy (FTIR) was applied for characterization of NaAlg composite with TiO 2 /CNT, the whole alginate presented bands in the region of 948-780 cm-1. The structure characteristics and surface properties of the samples were characterized by Electrical Conductivity that was measured in the range of (42 Hz-1 MHz). The study concluded that the introduction of TiO 2 / CNT resulted in improvement in electrical conductivity of the NaALg matrix.
Artificial photosynthesis is copying in practically less complex structure to achieve the consequences of natural photosynthesis. The process includes coupling solar powered driven water splitting and CO2 reduction. It takes place in a way that dispenses with the requirement for an external, sacrificial electron donor is one of the colossal difficulties for the utilization of renewable energy and a sustainable development. For all intents and purposes, ʹʹCO2 reductionʹʹ is more emerging than ʹʹwater splittingʹʹ since it not just adds to worldwide carbon cycling for carbon unbiased natural powers, mimicking what genuine leaves do (characteristic carbon reduction), additionally mitigating worldwide atmosphere changes. However, as CO2 is a generally dormant and stable exacerbate, its diminishment is entirely testing. The photo catalytic dwindling of CO2 has been generally expected for quite a while and additionally water splitting. For heterogeneous photo catalyst, numerous endeavors still concentrate on TiO2-based materials while different photo catalysts, for example, LiNbO3, ZnGa2O4, ALa4Ti4O15 (A=Ca, Sr, and Ba) etc. have additionally been accounted for as of late. Nevertheless, the advance accomplished in this field had not been as sensational as that in water splitting for a few decades in view of the low efficiencies, limited photo catalyst and/or requiring the utilization of sacrificial reducing agents. The study finds out current gaps inside of the advancement of recent photo-catalytic materials for artificial photosynthesis.
Polyvinyl alcohol- polypyrrole (PVA-PPy) nanocomposites with metal chlorides (FeCl3, NiCl2, CuCl2 and ZnCl2) have been synthesized by chemical oxidative polymerization method. These synthesized nanocomposites are characterized by using FTIR, X-ray diffraction, Transition electron microscope (TEM) and Conductivity measurement. TEM exhibit that all of the composites have uniform sizes and morphologies. The diameter of PVA/PPy nanocompsite is 58nm when the metals added to the PVA/PPy the diameters becomes smaller. The variation of electrical conductivity (log ?) with 1000/T for PVA/PPy nanocomposite with metal chlorides revealed that the increase in conductivity s at temperature (393K) with added metals can be attributed to the creation of induced charge carriers in PVA/PPy matrix
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