[PDF] Top 20 Development of titanium dioxide nanoparticles/nanosolution for photocatalytic activity

... activity (Mahshid et al., 2009). However, heat treatment such as calcination accelerates particle growth and induce agglomerates, thus led to photocatalytic activity (PCA) reduction (He et al., ... See full document

... engineered nanoparticles on ecosystems may affect either the population in general or a particular ...these nanoparticles on human health and on the environment is considered to be ...important. ... See full document

... The views expressed in this article are those of the authors and do not necessarily reflect the official policy or position of the Department of the Navy, Department of Defense, or the US Government. Title 17 U.S.C. §105 ... See full document

... this development was expected due to an ionic radius of the Ni 2+ ion that is similar to the radius of the Ti 4+ ion, and which can form an octahedral coordination as the Ti 4+ ion does ... See full document

... [8], electrochemical [9], microwave [10], sonochemical [11] and sol-gel methods [12]. Among these methods, the sol-gel method offers simple methodology, high control of surface area, average crystallite size, phase ... See full document

... ABSTRACT: Titanium dioxide is semiconductor metal oxide having many applications in photocatalytic activities, cosmetics and in the food industry. It exists in three major crystalline forms: anatase, ... See full document

... the photocatalytic activity of ZnO outperformed that of P25, both in the slurry or immobilized ...in photocatalytic degradation of some dyes when sunlight ... See full document

... article photocatalytic degradation of orange G dye was carried out using titanium dioxide nanoparticles under UV ...highest photocatalytic degradation of orange G dye was observed at ... See full document

... doped composite materials synthesised via the FSP technique, as well as with the commercially available P 25. We discuss the general morphology, specific surface area, phase composition, absorption range and ... See full document

... the photocatalytic treatment of dyestuffs and stained wastewater coming from handicrafts ...factories. Titanium dioxide nanoparticles are prepared by various methods like sol-gel technique, ... See full document

... Reeves et al. [1] have studied the effects of concentrated sunlight on the destruction rates of dyes by using a 1000-W xenon lamp to simulate solar radiation. The result showed that the light produced by this lamp was ... See full document

... the photocatalytic oxidation, because rhodamine “weakly” absorbs at this wavelength ...resulting photocatalytic fluorescence decays, for all samples, “were fit to a biexponential decay function, the first ... See full document

... The drawbacks to using these metal oxides are their (a) large band gap, often requiring near-UV light (λ < 400 nm) to induce electron photoexcitiation, (b) instability in aqueous medium, leading to photocatalyst ... See full document

... adjuvant activity; future studies should establish whether this also holds for other ...adjuvant activity than rutile NP, confirming our in vitro ... See full document

... catalytic activity of the prepared nanoparticles was measured in a batch photoreactor containing appro- priate solutions of 4-CP with visible light irradiation of 300-W Xe ... See full document

... deposition of silver nanoparticles on the surface of titanium dioxide nanotubes showed, that the Ag +.. 289.[r] ... See full document

... prepared nanoparticles were ...platinum nanoparticles with minimum size of 13 nm were ultimately ...The nanoparticles were characterized by UV/Vis spectroscopy, particle size distribution, ... See full document

... 30 second. The ratio of components HF/HNO 3 / H 2 O in the mixture was 1:4:5 in volume. The last step of pretreatment was rinsing with distilled water. The anodizing experiments were carried out using a two-electrode ... See full document

... The average OTR of SPI films with and without nanoparticles is presented in table 2. The effects of speed (6000, 8000, and 10000 rpm) and time of homogenization (3, 4, and 5 min) on OTR of SPI based packaging film ... See full document

... The organic–inorganic nanocomposite materials concerned widespread attention because of realizing the combined properties of organic and inorganic components in the same material [1-3]. Conductive polymers and metal ... See full document