A5069997031- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Quantum Dots Synthesis And Properties
- Copper-based nanomaterials and applications
- Advanced Nanomaterials in Catalysis
- Gold and Silver Nanoparticles Synthesis and Applications
- Advanced Sensor and Energy Harvesting Materials
- Graphene and Nanomaterials Applications
- Carbon and Quantum Dots Applications
- Nanoparticles: synthesis and applications
- Conducting polymers and applications
- Nanoparticle-Based Drug Delivery
- Photonic Crystals and Applications
- Catalytic Processes in Materials Science
- Electrostatics and Colloid Interactions
- Dielectric materials and actuators
- Nanopore and Nanochannel Transport Studies
- Electrochemical sensors and biosensors
- Electrochemical Analysis and Applications
- Graphene research and applications
- Gas Sensing Nanomaterials and Sensors
- Perovskite Materials and Applications
- Nanoplatforms for cancer theranostics
- Advanced biosensing and bioanalysis techniques
- Lignin and Wood Chemistry
National Centre of Scientific Research "Demokritos"
2018-2025
National and Kapodistrian University of Athens
2018-2025
Ternary TiO2/g-C3N4@Ag nanocomposites with controlled composition were synthesized and used as highly effective bifunctional photocatalysts. TiO2 nanoparticles initially prepared via a sol-gel method afterwards combined optimum amounts of graphitic carbon nitride (g-C3N4) by hydrothermal procedure to finally produce TiO2/g-C3N4 heterostructures. was impregnated silver nitrate aqueous solution containing sodium citrate reducing agent resulting in elemental nanoparticle (Ag0 NP) integration,...
Abstract Magnetic hyperthermia (MHT) is in the spotlight of nanomedical research for treatment cancer employing magnetic iron oxide nanoparticles and their intrinsic capability heat dissipation under an alternating field (AMF). Herein we focus on synthesis nanoflowers (Nfs) different sizes (15 35 nm) coatings (bare, citrate, Rhodamine B) while comparing physicochemical magnetothermal properties. We encapsulated colloidally stable citrate coated Nfs, both sizes, thermosensitive liposomes via...
Homojunction engineering has emerged as a potent strategy to evade interfacial stability issues and improve the efficiency of nanostructured metal oxide photocatalysts, though rarely combined with enhanced light capture ability three-dimensional macroporous photonic crystal structures. Herein, formation nanoscale n-n+ homojunctions between different Mo- Ca-doped BiVO4 nanocrystals in skeleton band gap (PBG) engineered inverse opals is introduced an advanced approach simultaneously promote...
Optical and photocatalytic restrictions of anatase TiO
Synergy of plasmonic–photonic effects in Ag,Au modified Mo-BiVO 4 inverse opal photoelectrocatalysts enhance recalcitrant pharmaceutical degradation.
A series of Poly(vinyl alcohol) (PVA) nanocomposite films containing quaternized hyperbranched polyethyleneimine (PEI) functionalized multi-walled carbon nanotubes (ox-CNTs@QPEI) are prepared by solvent casting technique. The modified based material exhibits high aqueous solubility, due to the hydrophilic character dendritic polymer. PEI successfully wraps around nanotube walls, as polycations provide electrostatic repulsion. Various contents ox-CNTs@QPEI ranging from 0.05 1.0 % w/w were...
Abstract Halide organic–inorganic perovskites (HOIPs) are a promising class of materials for neuromorphic computing and processing systems demonstrating variety resistive switching (RS) mechanisms. HOIPs have been used as active layers in two‐ three‐terminal synaptic devices reporting high performance metrics speed energy consumption. Nevertheless, halide suffer from poor ambient stability reproducibility. In this work, highly robust double memristor based on two forming stacking...
Heterojunction formation between BiVO4 nanomaterials and benchmark semiconductor photocatalysts has been keenly pursued as a promising approach to improve charge transport separation via interfacial electron transfer for the photoelectrocatalytic degradation of recalcitrant pharmaceutical pollutants. In this work, heterostructured TiO2/Mo-BiVO4 bilayer photoanode was fabricated by deposition mesoporous TiO2 overlayer using P25 titania catalyst on top Mo-doped inverse opal films supporting...
CDs/TiO2 nanohybrids were synthesized and tested for photocatalytic H2 production from aqueous media through simulated solar light-driven reactions. Firstly, three different types of CDs prepared green methods, specifically hydrothermal treatment microwave irradiation, using citric acid urea as precursors in varying molar ratios. After a multi-step purification procedure, impurity-free obtained. The as-synthesized thoroughly characterized UV-Vis, FT-IR, PL spectroscopy, along with HR-TEM....
Ag8SnS6 (ATS) nanoparticles, with a band gap of 1.35 eV, which is located exactly at the Schockley-Queisser optimal value for single-junction solar cell, were utilized as photoabsorber component in solid state photovoltaic devices. The as-made particles capped long aliphatic chains oleic acid and oleylamine. After surface functionalization shorter extremely basic formamidinium cations, an increase absorption coefficient throughout visible spectrum range was observed. ligand exchange led also...
Bulk heterojunction (BHJ) organic solar cells (OSCs) represent a promising technology due to their cost-effectiveness, lightweight design and potential for flexible manufacturing. However, achieving high power conversion efficiency (PCE) long-term stability necessitates optimizing the interfacial layers. Zinc oxide (ZnO), commonly used as an electron extraction layer (EEL) in inverted OSCs, suffers from surface defects that hinder device performance. Furthermore, active control of its...
Nanographene oxide–TiO<sub>2</sub> photonic crystal films are demonstrated as sensitive, recyclable SERS substrates that integrate slow-photon amplification effects with the high adsorption capacity of GO nanosheets.
The van der Waals interactions between graphene nanosheets and hydrophobic molecules derived from natural aqueous extracts are indicated as the driving force for high-yield exfoliation of graphite effective dispersion produced in pure water. Although it seems paradoxical, absorption small organic on large surfaces decreases character nanosheets, resulting significant improvement dispersibility This fact reveals a totally novel mechanism to produce high-quality by liquid their water at...
Hematene and magnetene nanoplatelets have been produced by liquid phase exfoliation of natural mineral ores, in a water solution melamine under mild sonication.
An efficient doxorubicin (DOX) drug delivery system with specificity against tumor cells was developed, based on multi-walled carbon nanotubes (MWCNTs) functionalized guanidinylated dendritic molecular transporters. Acid-treated MWCNTs (oxCNTs) interacted both electrostatically and through hydrogen bonding van der Waals attraction forces derivatives of 5000 25,000 Da weight hyperbranched polyethyleneimine (GPEI5K GPEI25K). Chemical characterization these GPEI-functionalized oxCNTs revealed...