Photocatalytic activity of hybrid Ag/Er:ZnO nanoparticles synthesized by pulsed laser ablation in distilled water

Physica Scripta, Journal Year: 2023, Volume and Issue: 98(9), P. 095934 - 095934

Published: July 26, 2023

Abstract We have studied the photocatalytic performance of ZnO, Er:ZnO, hybrid Ag/ZnO, and Ag/Er:ZnO colloidal nanoparticles (NPs) synthesized by pulsed laser ablation stoichiometric targets silver plate in double distilled water. The x-ray diffraction (XRD) analysis revealed polycrystalline structure ablated NPs. morphology was examined transmission electron microscope (TEM). optical properties prepared NPs were investigated UV-visible absorption photoluminescence spectroscopies. photodegradation Rhodamine 6G organic dye utilized to evaluate activity produced under illumination UV light. showed enhanced efficiency 96.4%, after 45 min irradiation, compared 79.7% pristine ZnO obtained results point out enhancing effect dopants on further demonstrate bulk materials pure water as a fast eco-friendly technique for producing efficient nanoparticle photocatalysts.

Language: Английский

Integrated Hydrogen Peroxide, Sono, and Heterogeneous Photocatalysis Technologies: A Novel Technique for Ammonia and Phosphorus Removal in Real Poultry Slaughterhouse Wastewater

Brazilian Journal of Poultry Science, Journal Year: 2024, Volume and Issue: 26(1)

Published: Jan. 1, 2024

Poultry slaughterhouse wastewater (PSW) has substantial organic load and nutrient contents, which must be removed before discharge due to being sanitary environmental hazards. The present study is the first analyze individual synergistic influences of combined hydrogen peroxide (H2O2), different ultraviolet lights (UV-A/UV-C), inorganic compound catalysts titanium zinc oxides (TiO2/ZnO), ultrasound (US) processes on ammonia phosphorus elimination from PSW using a Taguchi L36 orthogonal array. results showed that, compared other in isolation, integrated process H2O2, US, heterogeneous photocatalysis (HPC) significantly more effective at treating terms N4 + -N removal (52.0%) PO4-P (59.5%). Furthermore, electrical energy consumption 2.67 g-1 US$ 2.14 was determined most significant factor operating cost system, while average chemical under optimal conditions 0.34 US$/g. In general, indicate that effectiveness removing pollutants directly influenced by pH, catalyst concentration, duration operation. Additionally, presence types real might lead reduced efficiencies.

Language: Английский

Study on the controlled preparation of ZnO/CdS and its photocatalytic performance enhanced by Au particles

Journal of Materials Science Materials in Electronics, Journal Year: 2024, Volume and Issue: 35(28)

Published: Oct. 1, 2024

Language: Английский