title: Visible-Light-Driven Photocatalysts of Perfluorinated Silica-Based Fluorescent Carbon Dot/TiO2for Tunable Hydrophilic-Hydrophobic Surfaces.
abstract: In this study, a new hydrophilic-hydrophobic transition surface was designed via visible-light-induced photocatalytic perfluorinated silica-based fluorescent carbon nanoparticles (FNPs)/TiO2. Perfluorinated silica-polydopamine hybrid FNPs (f-FNPs) were easily fabricated by carbonization in an emulsion system consisting of tetraethyl orthosilicate and dopamine, followed by the deposition of TiO2on f-FNPs, which demonstrated the reversal from hydrophobic to hydrophilic nature during successful photocatalysis. The synergistic effect of silica-carbon and the deposited TiO2NPs led to the decomposition of methylene blue under UV and visible light irradiation, demonstrating that FNPs/TiO2sustains photocatalytic activity. The profound contact angle with the catalytic kinetics curve and precise morphology and extension of cells detach antifouling exceptionally unrestricted the synergistic effect of silica-carbon on TiO2NPs on a coated paper substrate. Given the interest in the manipulation of hydrophobicity and hydrophilicity, this study can serve as a guideline for the fabrication of photocatalytic surfaces where water spreads completely.
authors.forename: Young Kwang
authors.initials: YK
authors.lastname: Kim
authors.forename: Eun Bi
authors.initials: EB
authors.lastname: Kang
authors.forename: Sung Han
authors.initials: SH
authors.lastname: Kim
authors.affiliation: Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 305-701, Republic of Korea.
authors.forename: Shazid Md
authors.initials: SM
authors.lastname: Sharker
authors.forename: Beyung Youn
authors.initials: BY
authors.lastname: Kong
authors.forename: Insik
authors.initials: I
authors.lastname: In
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Kosin University College of Medicine , 262 Gamcheon-ro, Suh-gu, Busan, 49267, Republic of Korea.
authors.forename: Kang-Dae
authors.initials: KD
authors.lastname: Lee
authors.forename: Sung Young
authors.initials: SY
authors.lastname: Park
keywords: TiO2; UV−vis; hydrophilic−hydrophobic surface; photocatalysis; silica−carbon dot