Design and Synthesis of Iron‐Doped Nanostructured TiO₂ and Its Potential Use in the Photodegration of Hazardous Materials Present in Personal Care Products

Abstract

Parabens and phenoxyethanol are chemical compounds widely used as preservatives and antimicrobial agents in cosmetic and personal care products. The issue of their effect on human and environmental health is a particularly topical and relevant one that many national and international agencies reported about the risk from the use of such compounds. In the present paper, iron doped TiO 2 nanoparticles were synthetized and characterized by morphological and spectroscopic techniques. The proposed synthesis was designed to improve the photocatalytic activity of the nanostructures towards the two preservatives compounds when irradiated by a visible light, in order to optimize the effect of natural irradiation on the photodegradation of the two compounds. Preliminary photocatalytic tests showed that the analytes' concentration in water solutions under illumination in presence of both iron-doped TiO 2 and pure TiO 2 decreased. A sensible enhancement of photocatalysis of both propylparaben and phenoxyethanol was recorded in presence of the Fe-doped nanostructures as a consequence of the physical and chemical properties of the catalyst.[a] Dr. Scheme 1. Chemical structure of a) paraben and b) phenoxylethanol. The group labeled with R can be an alkyl group.

A green process for the synthesis of porous TiO2 from ilmenite ore using molten salt alkali decomposition for photocatalytic applications

“…† Previous studies show that doping of Fe into TiO 2 nanoparticles improves optical and photocatalytic properties. 5,21,22 To investigate the oxidation states of elements and surface and optical absorption properties XPS, BET, and UV-vis analyses are performed, and the results obtained from the analyses are shown in Fig. 6, 7, and 8.…”

Preparation and application of titanium dioxide nanoparticles in offset ink

“…It's observed that the addition of nano TiO2 leads to a decrease in the yield value, that's because of the high density of solid TiO2 in comparison with jobbing ink, besides the hydrogen bond between TiO2, and oxygenated groups in jobbing offset ink. This allows Degussa to create a good mixture with jobbing offset ink and decreases the yield value [8].…”