Kochuveedu, Saji Thomas Jang, Yu Jin Jang, Yoon Hee Lee, Won Jun Cha, Min-Ah Shin, Haeyoung Yoon, Seokhyun Lee, Sang-Soo Kim, Sang Ouk Shin, Kwanwoo Steinhart, Martin Kim, Dong Ha 2024-01-20T16:03:04Z 2024-01-20T16:03:04Z 2021-09-02 2011-11 1463-9262 https://pubs.kist.re.kr/handle/201004/129869 Nanopatterned TiO2/carbon hybrid materials with tailored morphologies were produced by spin-coating solutions of amphiphilic poly(styrene-block-ethylene oxide) (PS-b-PEO) and inorganic precursors followed by sequential stabilization and carbonization. This synthetic strategy is based on cooperative sol-gel chemistry and self-assembly of block copolymers (BCPs), as well as on direct carbonization of the structure-directing BCP templates without additional carbon precursors. Thin films and powders consisting of either TiO2 dots in carbon matrices or carbon dots in TiO2 matrices as well as their powder type samples were obtained by varying the ratio of TiO2 sol-gel precursor to PS-b-PEO. X-ray photoelectron spectroscopy (XPS) revealed the formation of Ti-O-C bonds upon carbonization, as a result of additional electronic states in TiO2. The latter can be considered as the origin of the band narrowing and visible light absorption. The obtained carbon-TiO2 nanostructures showed pronounced visible-light photocatalytic activity. English ROYAL SOC CHEMISTRY DOPED TIO2 PHOTOCATALYSTS TITANIUM-DIOXIDE CARBON ANATASE FILMS NANOPARTICLES PHOTODEGRADATION NANOCRYSTALS DEGRADATION PHENOL Visible-light active nanohybrid TiO2/carbon photocatalysts with programmed morphology by direct carbonization of block copolymer templates Article 10.1039/c1gc15724h 1 GREEN CHEMISTRY, v.13, no.12, pp.3397 - 3405 GREEN CHEMISTRY 13 12 3397 3405 scie scopus 000297424900011 2-s2.0-82355172752 Chemistry, Multidisciplinary Green & Sustainable Science & Technology Chemistry Science & Technology - Other Topics Article DOPED TIO2 PHOTOCATALYSTS TITANIUM-DIOXIDE CARBON ANATASE FILMS NANOPARTICLES PHOTODEGRADATION NANOCRYSTALS DEGRADATION PHENOL TiO2 carbon hybrid materials carbonization of block copolymer Visible-light active photocatalysts