A5012695797- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Transition Metal Oxide Nanomaterials
- Gas Sensing Nanomaterials and Sensors
- Polyoxometalates: Synthesis and Applications
- Catalytic Processes in Materials Science
- Membrane Separation Technologies
- Water Quality Monitoring and Analysis
- Water Quality Monitoring Technologies
- Pigment Synthesis and Properties
- Solar-Powered Water Purification Methods
Babeș-Bolyai University
2015-2023
University of Szeged
2021-2023
Orthorhombic molybdenum oxide (α-MoO3) samples were prepared via calcination. During this process, the ratio of (0 4 0)/(1 1 0) or 0)/(0 2 1) crystallographic planes was fine-tuned by applying different calcination temperatures. Textural characterization carried out to comprehend their differences in photocatalytic and adsorption applications. Except for methyl orange, all tested dyes (methylene blue, crystal violet, malachite green, rhodamine B) presented affinity towards α-MoO3. It...
This study aimed to investigate the performance of composite photocatalytic membranes fabricated by incorporating multiple nanoparticles (TiO2, carbon nanotubes, BiVO4) into polyvinylidene fluoride membrane material for real dairy wastewater treatment. The exhibited superior antifouling behavior, lower filtration resistance, better flux, and higher flux recovery ratio than pristine membrane. Salinity, pH, lactose concentration are determinant factors that affect resistance rejection during...
The design of a semiconductor or composite system—with applications in materials science—is complex because its morphology and structure depend on several parameters. These parameters are the precursor type, solvent, pH solution, synthesis approach, shaping agents. This study gives meaningful insight regarding such WO3 materials. By systematically alternating (sodium tungstate dihydrate—NWH, ammonium hydrate—AMT), subsequently agents (halide salts—NaX, KX, hydrohalic acids—HX; X = F−, Cl−,...
Bismuth oxychloride photocatalysts were obtained using solvothermal synthesis and different additives (CTAB—cetyltrimethylammonium bromide, CTAC—cetyltrimethylammonium chloride, PVP–polyvinylpyrrolidone, SDS–sodium dodecylsulphate, U—urea TU—thiourea). The effect of the previously mentioned compounds was analyzed applying structural (primary crystallite size, crystal phase composition, etc.), morphological (particle geometry), optical (band gap energy) parameters, surface related properties...
Kinetic and mechanistic related approaches for mostly titania were intensively studied in the literature. However, combined modelling kinetic studies are few. Therefore, present work focuses on dependence of degradation kinetics two model compounds (salicylic acid-SA methyl orange-MO) Evonik Aeroxide P25, hydrothermally prepared hierarchical TiO₂ P25/WO₃ nanostars, obtained also by hydrothermal crystallization. The individual semiconductors composites characterized using XRD, DRS, SEM, while...
Orthorhombic molybdenum trioxide (α-MoO3) is well known as a photocatalyst, adsorbent, and inhibitor during methyl orange photocatalytic degradation via TiO2. Therefore, besides the latter, other active photocatalysts, such AgBr, ZnO, BiOI, Cu2O, were assessed of phenol in presence α-MoO3 using UV-A- visible-light irradiation. Even though could be used visible-light-driven our results demonstrated that its reaction medium strongly inhibits activity TiO2, while only AgBr not affected. might...