Freely assembled palladium nanoparticles (Pd NPs) on titania (TiO2) nano photocatalysts were successfully synthesized through a photodeposition method using natural sunlight. This synthesized heterogeneous photocatalyst (Pd/TiO2) was characterized through field emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), BET s...

The photocatalytic conversion of various nitroaromatic compounds in alcohols employing four different types of TiO(2) (Sachtleben Hombikat UV100 as anatase, Crystal Global R34 as rutile, Evonik-Degussa Aeroxide P25 as an anatase-rutile mixture, and home-made mesoporous anatase) has been studied. The effect of platinization of these different types of TiO(2) on the reaction sequence has also bee...

In this work, a facile method was adopted to prepare TiO2-WO3 loaded onto wood surface by two-step hydrothermal method. The as-prepared composite material can be used as photocatalyst under UV irradiation for the photodegradation of formaldehyde. Related tests showed that nano-architectonic materials with spherical particles substratewere mainly caused self-photodegradation nanostructured firml...

In this study, Fe(3)O(4)/SiO(2)/TiO(2) photocatalyst was prepared via a sol-gel method, and Fe(3)O(4) particles were used as the core of the colloid. Diffraction peaks of Fe(3)O(4) crystals are not found by XRD characterization, indicating that Fe(3)O(4) particles are well encapsulated by SiO(2). FTIR characterization shows that diffraction peaks of Ti-O-Si chemical bonds become obvious when th...

A homemade N doped-TiO2 nanoparticle were used to degrade dibenzothiophene (DBT) in a model fuel flowing on bench-scale glass-made falling film reactor irradiated by xenon lamp that emitted visible light. The photocatalyst was immobilized the glass sheet. EDS, SEM, and FT-IR techniques utilized identify morphology of nanoparticles. Different operating parameters (e.g., loading (0, 4, 5, 6 wt%),...

background: there are great interests in photocatalytic oxidation of contaminants using titanium dioxide in recent years. the main objective of this research was to study photocatalytic disinfection of coliform bacteria as water microbial pollution index using tio2 and a low pressure uv lamp in a batch reactor. methods: the polluted water was prepared by adding a colony of coliform in raw water...

photocatalytic reduction of carbon dioxide to formaldehyde was investigated on four semiconductor photocatalysts (fes, fes/fes2, nio and tio2). the reaction was carried out in continues flow of co2 gas bubbled into the reactor. semiconductor photocatalysts were characterized by x-ray diffraction (xrd) and diffuse reflectance spectroscopic (drs) methods. sulfide ion was used as hole scavenger. t...