Olga Sacco

ORCID: 0000-0003-2237-7434
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About
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Research Areas
  • Advanced Photocatalysis Techniques
  • TiO2 Photocatalysis and Solar Cells
  • Advanced Nanomaterials in Catalysis
  • Advanced oxidation water treatment
  • Pharmaceutical and Antibiotic Environmental Impacts
  • Water Quality Monitoring and Analysis
  • Catalytic Processes in Materials Science
  • Nanomaterials for catalytic reactions
  • Gas Sensing Nanomaterials and Sensors
  • ZnO doping and properties
  • Pigment Synthesis and Properties
  • Environmental remediation with nanomaterials
  • Aerogels and thermal insulation
  • Membrane Separation Technologies
  • Luminescence Properties of Advanced Materials
  • Polyoxometalates: Synthesis and Applications
  • Covalent Organic Framework Applications
  • Microplastics and Plastic Pollution
  • Innovative Microfluidic and Catalytic Techniques Innovation
  • Dye analysis and toxicity
  • Adsorption and biosorption for pollutant removal
  • Biosensors and Analytical Detection
  • Insect and Pesticide Research
  • Oxidative Organic Chemistry Reactions
  • Copper-based nanomaterials and applications

University of Salerno
2016-2025

National Interuniversity Consortium of Materials Science and Technology
2021-2023

University of Cincinnati
2014

A reverse-micelle sol-gel method was chosen for the preparation of Fe-doped TiO2 samples that were employed in photodegradation crystal violet dye under visible light irradiation a batch reactor. The dopant amount varied to assess optimal photocatalyst composition towards target degradation. photocatalysts characterized through multi-technique approach, envisaging XRPD and QPA as obtained by Rietveld refinement, FE-SEM analysis, DR UV-vis spectroscopy, N2 adsorption/desorption isotherms...

10.3390/nano13020270 article EN cc-by Nanomaterials 2023-01-08

This study was focused on the application of white and blue light emitting diodes (LEDs) as sources for photocatalytic degradation organic dyes in liquid phase with visible light. The activity N-doped titanium dioxide, synthesized by direct hydrolysis tetraisopropoxide ammonia, evaluated means a batch photoreactor. bandgap energy dioxide moved range from 3.3 eV to 2.5 eV. responsive photocatalysts showed remarkably effective decolorization process removal total carbon. Methylene also used...

10.1155/2012/626759 article EN cc-by International Journal of Photoenergy 2012-01-01

Abstract BACKGROUND Heterogeneous photocatalysis for the degradation of non‐biodegradable organic contaminants in wastewater is an alternative to traditional treatment techniques. Since applications developed employ photocatalysts powder form, a main disadvantage remains related recovery from treated wastewater, resulting damage and shorter lifetime recirculation pumps. Structured offer valid solution simplify process; however, they have guarantee light transmission, long‐term stability...

10.1002/jctb.4372 article EN Journal of Chemical Technology & Biotechnology 2014-03-11

In this work, the synthesis of zinc oxide (ZnO) photocatalyst from thermal decomposition acetate (ZnAc) nanoparticles obtained by supercritical antisolvent (SAS) precipitation was investigated. The optimization calcination conditions SAS ZnAc carried out, studying effect temperature (in range 300–600 °C) on production ZnO nanoparticles. particular, it demonstrated that organic residues in and its particle size, thus specific surface area, strongly affect photocatalytic performances....

10.3390/catal9040346 article EN Catalysts 2019-04-09

The beneficial effects on ZnO and TiO2 photocatalytic activity resulting from a suitable combination of doping heterojunctions were proposed investigated by synergistic experimental theoretical study. In detail, the ZnO/N-doped heterojunction was synthesized tested in degradation atrazine under UV visible light. Wide-angle X-ray diffraction (WAXD) analysis reveals presence both crystalline phases heterojunction. UV–vis DRS shows that simultaneous N-doped results slight increase band gap...

10.1021/acs.jpcc.2c00152 article EN cc-by The Journal of Physical Chemistry C 2022-04-13

In this study, P-doped TiO2 photocatalysts with different molar percentages (in the range 0.071-1.25 mol %) of non-metallic element were prepared and their photocatalytic activity under visible light irradiation was tested. All achieved samples characterized by XRD, Raman, UV-Vis DRS SEM-EDX techniques. XRD Raman analysis showed that all doped in anatase phase evidenced P ions successfully incorporated into crystal lattice, affecting also crystallinity degree photocatalysts. Noticeably,...

10.1007/s43630-023-00363-y article EN cc-by Photochemical & Photobiological Sciences 2023-01-19

Supercritical antisolvent precipitation was used to obtain ZnO (undoped) and Fe-doped photocatalysts at different Fe/Zn molar ratio percentages (0.57, 0.75 0.84 mol%). Wide-angle X-ray diffraction showed the hexagonal wurtzite as main crystalline phase of cauliflower-like nanoparticle aggregations (observed from Field Emission Scanning Electron Microscopy) with a mean diameter 54.5 nm for pure nanoparticles higher (in range 109.1–121.5 nm) nanoparticles. XRF confirmed approximate ratios...

10.1016/j.ica.2023.121407 article EN cc-by-nc-nd Inorganica Chimica Acta 2023-01-28

In this paper, the effect of light modulation on photocatalytic ceftriaxone (CEF) degradation in aqueous solution was investigated. The experimental set-up consisted a fixed bed reactor with flat plate geometry and visible LEDs for irradiation. Fe-N-codoped TiO2 photocatalyst immobilized polystyrene (PS) by solvent casting method to achieve structured (Fe-N-TiO2/PS), which loaded photoreactor. Raman UV–Vis diffuse reflectance spectroscopy confirmed presence Fe-N-TiO2 PS surface its uniform...

10.1016/j.cej.2024.149175 article EN cc-by-nc-nd Chemical Engineering Journal 2024-01-29
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