Abstract:
Nanoparticles have more ability to self-assemble due to smaller size and higher surface energy. Directed self-assembly is a method to get the regularity and anisotropic in agglomerated structures by using different shapedirecting agents. Due to direct self-assembly process, nanoparticles with various applications are being observed such as catalysis, biosensing, luminescence, drug delivery etc. From last few decades, much of work have been done for nanoparticles. Due to more potential of self-assembly in Nano scale there is great demand to control the self-assembly at nano regime for efficient control of size and shape formed by directed self-assembly of such smaller particles for significant application. Titanium oxide, a significant semiconductor nanomaterial have been seen considerable use as a photocatalyst for diverse applications involving environmental remediation, as a photocatalyst for production of H 2 in water splitting, in dye-sensitized solar cells, for synthesis of organic chemicals etc. The properties of TiO 2 its chemical and thermal stability, low toxicity and high resistant to corrosion. TiO2 has wide direct band-gap and fast excitons recombination rate, therefore it has a limited absorption range in electromagnetic spectrum that decreases its efficiency as a photocatalyst and hinders its application for light absorption. In this work, template controlled titania is prepared by wet chemical approach by using different templates like decyltrimethylammonium bromide, tetraoctylphosphonium bromide and Tannic acid to tune the band gap of titania for efficient absorption. Then asprepared material has been characterized by using wide range of different characterization techniques. The structural and phase characterization of as prepared material has been checked by powdered X-rays diffraction (p-XRD). The photo-generated electrons and holes and their behavior has been analyzed by using photoluminescence (PL) emission spectra. The optical and absorption properties has been studied by using ultra-violet-visible spectroscopy (UV-VIS). For analysis of functional groups Fourier transforms infrared spectroscopy (FTIR) has been used. The morphological determination of as-made titania (TiO2) would be carried out by field-emission scanning electron microscopy (FESEM). The results are helpful in designing multi-phased titania based Nanocomposites for water splitting applications.
Page(s):
0-0
DOI:
DOI not available
Published:
Journal: First International Conference on Revamped Scientific Outlook of 21st Century (Abstract Book), Volume: 0, Issue: 0, Year: 2022
Keywords:
Nanoparticals
,
Selfassembly
,
Nanoscale
,
Titania