A5011566095- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Catalytic Processes in Materials Science
- Advanced oxidation water treatment
- Catalysis and Oxidation Reactions
- Corrosion Behavior and Inhibition
- Advanced Nanomaterials in Catalysis
- Pharmaceutical and Antibiotic Environmental Impacts
- Surface Modification and Superhydrophobicity
- Catalysts for Methane Reforming
- Gas Sensing Nanomaterials and Sensors
- Mesoporous Materials and Catalysis
- Copper-based nanomaterials and applications
- Covalent Organic Framework Applications
- Environmental remediation with nanomaterials
- Perovskite Materials and Applications
- Titanium Alloys Microstructure and Properties
- Hydrogen embrittlement and corrosion behaviors in metals
- Arsenic contamination and mitigation
- Smart Materials for Construction
- Chemistry and Chemical Engineering
- Polyoxometalates: Synthesis and Applications
- Iron oxide chemistry and applications
- Pickering emulsions and particle stabilization
- Carbon dioxide utilization in catalysis
National Institute of Chemistry
2016-2025
Chalmers University of Technology
2021
Jožef Stefan Institute
2013-2016
The results of investigating the morphological, optical and electronic properties three synthesized TiO2 polymorphs (anatase (A A2), brookite (B B2) rutile (R)) show that origin their different catalytic efficiency in heterogeneous photocatalytic process lies depths charge carrier traps. presence shallow electron traps extends number "lifetime" generated holes, so is a good choice as photocatalyst such systems where these two variables are reaction limiting factors. Low generation high...
A graphical illustration of TNR + rGO composites and a possible mechanism for improved charge migration.
Different synthesis temperatures (450–550 °C) were applied to synthesize g-C3N4 with the highest visible-light triggered photocatalytic activity. The best performing photocatalyst was synthesized at 550 °C due created favourable structure that expressed lowest band gap and charge carrier recombination rate. To further improve activity of g-C3N4, different g-C3N4/TiO2 (gCN/TNP) composites varying weight concentrations TiO2 prepared. Charge separation enabled injection photogenerated electrons...
The main objective of the present study was to increase specific surface area (SBET) graphitic carbon nitride (g-C3N4) prepared from dicyandiamide by effectively modifying synthesis procedure using Simplex optimization method. A remarkable in SBET achieved only a few steps, with highest value 86 m2/g. Compared reference material, improved photocatalyst exhibited enhanced and unique structural, textural, optical, electronic properties, reflected ability degrade variety organic pollutants...
TiO2+Pt plasmonic solids with 1 wt% Pt and different TiO2 supports (anatase nanoparticles (TNP), polycrystalline nanorods (a-TNR) single-crystal anatase (TNR)) were synthesized using the wet impregnation technique tested as photo, thermal photothermal catalysts in gas-solid gas-liquid-solid reactions. Due to charges of support surfaces, particles sizes, crystallinities degrees interaction formed during synthesis. The heights Schottky barrier (SBH) 0.38 eV for a-TNR+Pt, 0.41 TNP+Pt, 0.50...
Plasmonic Au (1 wt%) catalysts deposited on hydrothermally synthesized TiO2 nanorods (TNR) were investigated in this study. Based the duration of mixing precursor/TNR suspension during wet impregnation synthesis and parameters end calcination, Au/TiO2 with different sizes nanoparticles (Au NPs) obtained. The prepared solids thoroughly characterized by several instrumental techniques to investigate property-activity relationships. Regardless size particles catalyst surface, an absorption peak...
Plasmonic composites combining titanium dioxide (TiO2) with highly dispersed noble metal nanoparticles have attracted great interest as they exhibit improved photocatalytic performance compared to the bare TiO2. In this article, TiO2–Au composite nanorods were synthesised by wet impregnation in combination calcination. The obtained plasmonic characterized TEM, SEM, XRD, N2 sorption, UV-Vis diffuse reflectance spectroscopy (UV-Vis DR) and reversed double-beam photoacoustic (RDB-PAS) analysis....
A γ-alumina support functionalized with transition metals is one of the most widely used industrial catalysts for total oxidation volatile organic compounds (VOCs) as air pollutants at higher temperatures (280-450 °C). By rational design a bimetal CuFe-γ-alumina catalyst, synthesized from dawsonite alumina precursor, activity in toluene model VOC lower temperature (200-380 °C) achieved. fundamental understanding catalyst and reaction mechanism elucidated by advanced microscopic spectroscopic...
In this study, the surface and textural properties as well catalytic performance of Ni/CeO2 NiIn/CeO2 catalysts prepared by wet impregnation (WI) deposition–precipitation (DP) are investigated. The addition Ni (3.0 wt.%) resulted in a decrease specific area pore volume case WI method, possibly due to blockage mesopores. A minimal (0.25 caused further both cases. XRD analysis showed that deposited on CeO2 DP some lattice incorporation, affecting crystallinity support. H2-TPR profiles altered...
This study focused on the preparation and investigation of g-C3N4/TiO2 photocatalysts using different TiO2 morphologies (anatase nanoparticles (TPs), poorly crystalline nanotubes (aTTs), well-crystalline anatase nanorods (TRs)) self-synthesized g-C3N4 (CN). The synthesis composites was carried out a mortar mixing technique to weight ratio 1:1. In addition, were annealed in muffle furnace at 350 °C for 2 h air. successful formation composite with mesoporous structure confirmed results XRD, N2...
Two commercially available TiO2 (hexagonal-like and spherical-like particles) were used to investigate the effect of g-C3N4 "melting" on photocatalytic properties g-C3N4/TiO2 composites. Improvement in contact between components was observed when they thermally treated at 350 °C for an extended period time (between 2 72 h) due partial melting phase fusion g-C3N4. Consequently, enhanced phases allows easier injection photogenerated electrons from conduction band into TiO2, improving charge...
The emergence of antimicrobial resistance due to antibiotics in the environment presents significant public health, economic, and societal risks. This study addresses need for effective strategies reduce antibiotic residues, focusing on ciprofloxacin degradation. Magnetic iron oxide nanoparticles (IO NPs), approximately 13 nm size, were synthesized functionalized with branched polyethyleneimine (bPEI) obtain a positive charge. These IO-bPEI NPs combined negatively charged titanium dioxide...