Efficient, Green Non-Aqueous Microwave-Assisted Synthesis of Anatase TiO₂ and Pt Loaded TiO₂ Nanorods with High Photocatalytic Performance

Abstract

A high-yield synthesis of pure anatase titania nanorods has been achieved through a nonaqueous microwave-based approach. The residual organics on nanoparticles surfaces were completely removed under ozone flow at room temperature in air. The TiO2 nanorods, with average lengths of 27.6 ± 5.8 nm and average diameters of 3.2 ± 0.4 nm, were characterized by powder X-Ray diffraction, transmission electron microscopy, selected area diffraction, BET surface area analysis and FT-IR spectroscopy. The photocatalytic performances of the as-synthesized TiO2 nanorods and platinum loaded TiO2 nanorods were implemented with respect to both commercial P25 and platinum loaded P25. Performance enhancements should be attributed to effects like differences in the adsorption capacity and in the separation efficiency of the photogenerated electrons-holes.

Design of halloysite-based nanocomposites by electrospinning for water treatment

“…S5) belonged to the type IV (IUPAC classification) with a distinct type H3 hysteresis loop at a relative pressure range of (0.7-1.0) for HNT and H95T5 and of (0.4-0.9) for TiO2. This indicated that their mesoporous and microporous structures were preserved [74][75][76][77][78][79][80] .…”

Preparation of modified paints with nano-structured additives and its potential applications

“…34,36,[40][41][42][43][44][45] Current study proposed the use of Cymbopogon citratus (commonly known as lemongrass) leaf extract as reducing of metal precursors and capping agent, due to the high content of phytochemicals such as neral, citral, geranial, pinito, allantoin flavonoids, hydrocarbons, waxy esters, sterol esters, ketones, aldehydes, terpenoids, phenols, fatty alcohols, fatty acids, among others. [46][47][48][49][50][51][52] This plant is widely available in tropical and semitropical environment zones throughout Asia, Africa, and South America. 53,54 Therefore, lemongrass leaves were proposed to be part of the raw material in the synthesis of TiO 2 and ZnO nanoparticles since they are easily found in the Department of Bolivar (Cartagena, Colombia) and are no part of the food chain.…”