Yiannis Georgiou

ORCID: 0000-0002-9848-9355
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About
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Research Areas
  • Arsenic contamination and mitigation
  • Metal-Organic Frameworks: Synthesis and Applications
  • Advanced Photocatalysis Techniques
  • Catalytic Processes in Materials Science
  • Environmental remediation with nanomaterials
  • Copper-based nanomaterials and applications
  • Carbon and Quantum Dots Applications
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Catalysis and Oxidation Reactions
  • Iron oxide chemistry and applications
  • Microplastics and Plastic Pollution
  • Covalent Organic Framework Applications
  • Nanoparticles: synthesis and applications
  • Fluoride Effects and Removal
  • Radioactive element chemistry and processing
  • Chemical Synthesis and Characterization
  • Soil and Water Nutrient Dynamics
  • Heavy Metal Exposure and Toxicity
  • Phosphorus and nutrient management
  • Constructed Wetlands for Wastewater Treatment
  • Quantum Dots Synthesis And Properties
  • Multiferroics and related materials
  • Nanocluster Synthesis and Applications
  • Polyoxometalates: Synthesis and Applications
  • Aerogels and thermal insulation

Foundation for Research and Technology Hellas
2023-2024

University of Ioannina
2015-2023

University of Patras
2013-2015

A recyclable <bold>Ca-MOF</bold> that exchanges Ca<sup>2+</sup> by Cu<sup>2+</sup> almost quantitatively and quickly was investigated <italic>via</italic> batch ion-exchange experiments utilized as a stationary phase in an column for removal from aqueous media.

10.1039/c6qi00542j article EN Inorganic Chemistry Frontiers 2017-01-01

Magnetic carbon nanocages (Mag@CNCs) were synthesized via a green one-step process using pine resin and iron nitrate salt as source, respectively. To produce Mag@CNCs, pristine materials have been carbonized at high temperature under inert atmosphere. The structural, textural, surface properties of as-synthesized Mag@CNCs studied employing microscopic, spectroscopic, physicochemical methods. obtained results showed that the new significant area (177 m2 g–1) with both microporosity...

10.1021/acssuschemeng.7b00394 article EN ACS Sustainable Chemistry & Engineering 2017-05-16

The MIL-100(Fe) metal–organic framework presents a high As(III) uptake capacity of 120 mg g–1. Mechanistic insights into the role Fe sites versus carbon on are provided by comparative study series calcinated at 600, 800, and 900 °C. Using powder X-ray diffraction, TEM, scanning electron microscopy, N2-porosimetry, we have mapped morphology evolution materials. Fourier transform infrared spectroscopy, thermogravimetric analysis, paramagnetic resonance show that noncalcined bears Fe3+ atoms;...

10.1021/acs.jpcc.7b11247 article EN The Journal of Physical Chemistry C 2018-02-08

Copper-cerium mixed oxide catalysts have gained ground over the years in field of heterogeneous catalysis and especially CO oxidation reaction due to their remarkable performance. In this study, a series highly active, atomically dispersed copper-ceria nanocatalysts were synthesized via appropriate tuning novel hydrothermal method. Various physicochemical techniques including electron paramagnetic resonance (EPR) spectroscopy, X-ray diffraction (XRD), N2 adsorption, scanning microscopy...

10.3390/catal9020138 article EN Catalysts 2019-02-01

The plasmon-induced heat generation by core–shell Ag0@SiO2 nanoparticle ensemble, i.e., Ag0 nanoparticles coated with a nanometric, amorphous SiO2 layer, has been studied for dispersed in liquid suspensions or deposited film. Nonmonodispersed, fractal-like ensembles were synthesized flame spray pyrolysis, varying particle size distribution, and shell thickness, ranging from 1 nm up to 5 nm. particles characterized TEM, XRD, XPS, UV–vis, while the thermoplasmonic heat-generation efficiency...

10.1021/acs.jpcc.9b06532 article EN The Journal of Physical Chemistry C 2019-08-26

Understanding the plasmon-mediated electron-transfer mechanisms from plasmonic nanostructures to redox-active metals is a technically challenging and still developing procedure. Electron paramagnetic resonance (EPR) spectroscopy well established as state-of-the-art tool selectively detect redox evolution of metals; however, its use in plasmon-driven charge-transfer processes has not been explored so far. Herein, we present quantitative study on mechanism hot-electron transfer, Ag@SiO2...

10.1021/acs.jpcc.2c07837 article EN The Journal of Physical Chemistry C 2023-01-19

Ordered mesoporous carbons with innate carbonyl functionalities (MC-icf) have been synthesized via a nanocasting process using SBA-15 as template and acetylenedicarboxylic acid carbon source, instead of the commonly used sugar. The structural, textural, surface properties derived material were investigated by means spectroscopic, microscopy, physicochemical methods. experimental results showed that new exhibit basic structural morphological features resemble those CMK-3 carbons, such...

10.1021/jp403540c article EN The Journal of Physical Chemistry C 2013-07-30

Noble metal-TiO2 nanohybrids, NM0-TiO2, (NM0 = Pt0, Pd0, Au0, Ag0) have been engineered by One-Nozzle Flame Spray Pyrolysis (ON-FSP) and Double-Nozzle (DN-FSP), controlling the method of noble metal deposition to TiO2 matrix. A comparative screening two FSP methods was realized, using NM0-TiO2 photocatalysts for H2 production from H2O/methanol. The results show that DN-FSP process allows engineering more efficient nanophotocatalysts. This is attributed better surface-dispersion narrower...

10.3390/en14040817 article EN cc-by Energies 2021-02-04

A 3D mesoporous network of ∼6 nm cobalt ferrite (CoFe<sub>2</sub>O<sub>4</sub>) nanoparticles (NPs), synthesized through a polymer-assisted aggregation self-assembly method, is presented.

10.1039/c8en01442f article EN Environmental Science Nano 2019-01-01

Designing highly active catalysts for the oxidation of volatile organic compounds (VOCs) involves fine-tuning catalytic surface and improving its interaction with VOCs. The present review assesses various studies conducted in last decade on Co3O4 complete toluene (C7H8) provides information synthesis physicochemical characterization these catalysts. Taking this one step further, data from literature were carefully chosen an extensive meta-analysis aiming at elucidating structure sensitivity...

10.3390/catal13111454 article EN Catalysts 2023-11-20

Abstract Exposure of humans to Arsenic from groundwater drinking sources is an acute global public health problem, entailing the urgent need for highly efficient/low-cost Arsenite (As III ) up-taking materials. Herein we present innovative hybrid-material, ZrMO F@SF d operating like “As -sponge” with unprecedented efficiency 1800 mg As gr −1 . ZrMOF@ SF consists a neutral Zirconium Metal-Organic Framework [ZrMOF] covalently grafted on natural silk-fiber ( ). ZrMOF itself exhibits adsorption...

10.1038/s41598-020-66091-w article EN cc-by Scientific Reports 2020-06-09

Abstract The main purpose of many current studies regarding energy efficiency is the improvement thermal resistance buildings. To fulfill this goal, development advanced insulating materials, to be incorporated in building envelopes, imperative. Aerogels are ultralight porous materials typically produced via sol‐gel process followed by supercritical drying wet gel. They exhibit very high porosities and a mesoporous‐macroporous structure which endows aerogels with extremely low conductivity....

10.1002/appl.202300112 article EN cc-by-nc Applied Research 2024-07-14
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