نتایج جستجو برای: photo catalyst

تعداد نتایج: 71758  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1391

in this thesis, we exploit a simple and suitable method for immobilization of copper(ii) complex of 4?-phenyl-terpyridine on activated multi-walled carbon nanotubes [amwcnts-o-cu(ii)-phtpy]. this nanostructure was characterized by various physico-chemical techniques. to ensure the efficiency and fidelity of copper species, the implementation of three-component strategies in click-chemistry all...

Journal: Nanochemistry Research 2017

Iron oxide (Fe2O3) nanoparticles were prepared by combination of sol-gel autocombustion and ultrasonic irradiation. The XRD pattern reveals that the crystallite size of sample is 36.7 nm and the phase identification shows hematite, syn has been crystalized. The morphology of the sample investigated by FESEM showed that particle size of the sample was about 76 nm. The optic...

Journal: :Fuel 2023

Transition metal carbides/nitrides (MXenes) with eccentric properties are emerging 2D nanomaterials intriguing applications in the photo and electro-catalytic water splitting (Wsp). MXenes have a regular planer structure large specific surface area (SSA), excellent hydrophilicity, metallic conductivity, wide range of functionalities termination groups, making them promising candidate for long-t...

Journal: :Journal of Materials Science 2021

Abstract Silver orthophosphate (Ag 3 PO 4 ) is an attractive photocatalytic catalyst for disinfection and degradation, but its instability arising from silver release generates significant environmental issue. Aiming to develop a highly efficient environmental-friendly catalyst, we synthesized Ag nanoparticle incorporated hierarchical porous silica @ h -SiO 2 as novel high-performance without o...

2008
L. Gomathi Narasimha Murthy

Transition metal doping into the TiO2 lattice can expand the response of these metal oxide nano particles to the visible region. In view of this, Mo ion is doped into the TiO2 lattice in order to understand the mechanism of its photo response. The prepared photocatalysts were characterized by X-ray diffraction, UV–Visible absorption spectroscopy, UV–Visible diffuse reflectance spectroscopy, SEM...

2014
Kerstin T. Oppelt Jacek Gasiorowski Daniel Ayuk Mbi Egbe Jan Philipp Kollender Markus Himmelsbach Achim Walter Hassel Niyazi Serdar Sariciftci Günther Knör

A 2,2'-bipyridyl-containing poly(arylene-ethynylene)-alt-poly(arylene-vinylene) polymer, acting as a light-harvesting ligand system, was synthesized and coupled to an organometallic rhodium complex designed for photocatalytic NAD(+)/NADH reduction. The material, which absorbs over a wide spectral range, was characterized by using various analytical techniques, confirming its chemical structure ...

Journal: :Brazilian oral research 2013
Patricia Angélica Milani Calgaro Adilson Yoshio Furuse Gisele Maria Correr Bárbara Pick Ornaghi Carla Castiglia Gonzaga

This study evaluated: I) the effect of photo-activation through ceramics on the degree of conversion (DC) and on the Knoop hardness (KHN) of light- and dual-cured resin cements; and II) two different protocols for obtaining the spectra of uncured materials, to determine the DC of a dual-cured resin cement. Thin films of cements were photo-activated through ceramics [feldspathic porcelain (FP); ...

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