A dielectric barrier discharge reactor with inner electrode modified with metal oxides of Ti, Mn and Co has been designed and tested for the oxidation of diluted volatile organic compounds (VOCs) of different nature like toluene, isopropanol and trichloroethylene. It has been observed that at a fixed concentration of VOC, total oxidation of isopropanol is achieved at lower specific input energy...

Grazing-incidence small-angle x-ray scattering (GISAXS) is a standard tool for the analysis of surfaces and thin layers containing nanometer-sized structures. In order to obtain a two-dimensional map of their local morphology, we performed GISAXS microtomography on dried drops of colloidal suspensions. In particular, we investigated the self-organization of drying suspensions of TiO2 on polyeth...

Semiconductors crystal facet engineering has become an important strategy for properly tuning and optimizing both the physicochemical properties and the reactivity of photocatalysts. In this review, a concise survey of recent results obtained in the field of specific surface-oriented anatase TiO2 crystals preparation is presented. The attention is mainly focused on the fluorine-mediated hydroth...

The use of single atoms (SAs) has become a highly investigated topic in heterogeneous catalysis, electrocatalysis, and most recently also photocatalysis. In the field photocatalysis, Pt SAs on TiO2 have been reported to be efficient co-catalyst solar H2 production. Herein, deposition nanoparticles titania nanosheets is investigated. particular, species responsible for high co-catalytic activity...

6 ABSTRACT: In the past, the electrochemical instability of III−V semi7 conductors has severely limited their applicability in photocatlaysis. As a result, 8 a vast majority of the research on photocatalysis has been done on TiO2, which is 9 chemically robust over a wide range of pH. However, TiO2 has a wide band gap 10 (3.2 eV) and can only absorb ∼4% of the solar spectrum, and thus, it will n...

Background & objectives: Malachite green color has been extensively used in aquaculture industry around the world. The drainage of colored wastewater containing malachite green to aquatic ecosystems has created very serious risks for human health and the environment. The purpose of this study was to investigate the removal of green malachite from aqueous solutions using photocatalysis of titani...

Titanium dioxide (TiO2) is a well-studied photocatalyst that is known to break down organic molecules upon ultraviolet (UV) irradiation. Cellulose nanofibers (CNFs) act as an attractive matrix material for the suspension of photocatalytic particles due to their desirable mechanical and optical properties. In this work, TiO2–CNF composite films were fabricated and evaluated for photocatalytic ac...

In recent years, antibiotics (such as levofloxacin (LEV)) have been detected widely in the environment. Semiconductor photocatalysis has recognized a promising technology for removing pollutants this work, nitrogen and carbon codoped titanium dioxide nano-catalyst (NCD-TiO2) was immobilized polyvinyl alcohol (PVA) matrix to form PVA/NCD-TiO2 films through solution casting thermal treatment, whi...

Decolorization of Reactive Black 5 (RB5) was investigated by heterogeneous photocatalysis using N-doped TiO2. TiO2 photocatalysts were synthesized means a sol-gel process. X-ray diffraction performed the characterization samples, scanning electron microscopy and photoelectron spectroscopy measurements. Photocatalytic activity samples assessed following decolorization degradation efficiency RB5....

Ultraviolet (UV) water treatment techniques currently employ blacklight (UV-BL) lamps, which are energy intensive, short living and contain toxic materials, damaging the environment. Light emitting diodes (UV-LEDs) can offer an environmentally friendly alternative to UV-BLs, however their environmental impacts for have not been quantified yet. This study aims at investigating sustainability of ...