Ultra-fast synthesis and enhanced photocatalytic properties of alpha-Fe2O3/ZnO core-shell structure

Synthesis of CuO@NiO core-shell nanoparticles by homogeneous precipitation method

“…with core-shell morphology have been synthesized using homogeneous precipitation method [39][40][41]17,42,43]. In the literature, core-shell nanoparticles have been reported to be useful in various applications such as photocatalysis, antimicrobial activity and targeted drug delivery [44][45][46][47][48]. In the present study, the synthesis of CuO-NiO mixed metal oxide nanoparticles with core-shell morphology using homogeneous precipitation for the first time has been reported.…”

FexOy-ZnO kompozītu nanodaļiņu sintēze un raksturošana

“…Pusvadītāju fotokatalizatori ir viens no visattīstītākajiem fizikāli-ķīmiskajiem procesiem, kas piemērojams organisko un toksisko vides piesārņojumu fotodegradācijai [7]. Ir ziņas par ZnO fotoaktivitāti, degradējot fenolu un nitrofenolu, neskatoties uz to, ka tiek novērota fotokorozija starp šķidro un cieto fāzi [8].…”

“…Tādā veidā var iegūt nanokompozītus ar aktīvās virsmas laukumu 85 m 2 /g. Variējot sintēzes apstākļus, piemēram, vides pH, var mainīt nanokompozītu sastāva komponentu attiecību, struktūru, daļiņu izmērus, līdz ar to ietekmējot vēlamās gala produkta īpašības [7,[9][10][11].…”

“…8. attēlu). 7.att. Pretestības maiņa adsorbcijas un desorbcijas procesu norises laikā 275°C temperatūrā.…”

α-Fe2O3 modified ZnO flower-like microstructures with enhanced photocatalytic performance for pentachlorophenol degradation

“…It can be driven by visible light up to 600 nm due to the narrow band gap of 2.2 eV, and has been confirmed as an important member of visible-light-responsive semiconductor photocatalysts [9]. Although combinations of ZnO with Fe 2 O 3 have been investigated in order to enhance the photocatalytic activity of ZnO on organic compounds photodegradation, most of the used synthetic methods are complicated and need templates, high temperature, especial solvents and additives [10][11][12].…”