Their Applications Kesong Liu,†,∥ Moyuan Cao,† Akira Fujishima, and Lei Jiang*,†,‡ †Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, PR China ‡Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China Research Institute for Science and Technology, Photocatalysis International Research Center, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan Institute for Superconducting and Electronic Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, NSW 2500, Australia

Bio-Inspired Titanium Dioxide Materials with Special Wettability and Their Applications

The degradation of perfluorooctanoic acid (PFOA) in water was investigated both as photolysis and photocatalysis by slurry titanium dioxide. Different surfactant concentrations, the catalyst nature and concentration as well as the irradiation power of the UV lamp were evaluated. The reactions were conducted using merely the natural dissolved oxygen (DO), in order to simulate conditions of non-enriched water, as industrially feasible. The photomineralization of PFOA was monitored by total organic carbon (TOC) analysis and ionic chromatography (IC). Finally, the photocatalytic powder was analyzed at different reaction times by X-ray photoelectron spectroscopy (XPS) and by X-ray powder diffraction (XRD) technique in order to study and interpret the catalyst deactivation phenomena occurred during the treatment.

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Decomposition of perfluorooctanoic acid photocatalyzed by titanium dioxide: Chemical modification of the catalyst surface induced by fluoride ions

https://re.public.polimi.it/bitstream/11311/1071749/1/Manuscript_CEJ_post-referee.pdf

Absorption and Photocatalytic Degradation of VOCs by Perfluorinated Ionomeric Coating with TiO2 Nanopowders for Air Purification

Surface fluorination on TiO2 catalyst induced by photodegradation of perfluorooctanoic acid

In this review paper the current state of research into the physical degradation of polymer films is elucidated. Modern applications of polymer films and the implication of their degradation are discussed. Recent investigations into solid interactions such as abrasion, adhesion, fatigue and other failure modes as well as plasma and photonic interactions are examined. This investigation highlights key degradation mechanisms as well as areas where controversy over these mechanisms lies, and suggests directions for future research.

/pdf/degradation-of-polymer-films-45wllyqak1.pdf

W Menghua

Papers

UV-resistant amorphous fluorinated coating for anodized titanium surfaces