title: Eco-friendly carbon-nanodot-based fluorescent paints for advanced photocatalytic systems.
abstract: Fluorescent carbon nanomaterials, especially zero-dimensional (0D) carbon nanodots (CDs), are widely used in broad biological and optoelectronic applications. CDs have unique characteristics such as strong fluorescence, biocompatibility, sun-light response, and capability of mass-production. Beyond the previous green CD obtained from harmful natural substances, we report a new type of fluid-based fluorescent CD paints (C-paints) derived from polyethylene glycol (PEG; via simple ultrasound irradiation at room temperatures) and produced in quantum yields of up to ~14%. Additionally, C-paints possess a strong, UV- and visible-light-responsive photoluminescent (PL) property. Most especially, C-paints, by incorporation into a photocatalytic system, show additional roles in the emission of fluorescent light for activation of TiO2 nanoparticles (NPs) and the resultant detoxification of most organic dyes, thus further enabling embarkation in advanced water purification.
authors.affiliation: Advanced Nano-Surface Research Group Korea Basic Science Institute (KBSI), Daejeon 305-333, Republic of Korea.
authors.forename: So Young
authors.initials: SY
authors.lastname: Park
authors.affiliation: Advanced Nano-Surface Research Group Korea Basic Science Institute (KBSI), Daejeon 305-333, Republic of Korea.
authors.forename: Hyun Uk
authors.initials: HU
authors.lastname: Lee
authors.affiliation: Department of BioNano Technology, Gachon University, Gyeonggi-do 461-701, Republic of Korea.
authors.forename: Young-Chul
authors.initials: YC
authors.lastname: Lee
authors.affiliation: Sustainable Bioresource Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea.
authors.forename: Saehae
authors.initials: S
authors.lastname: Choi
authors.affiliation: Sustainable Bioresource Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea.
authors.forename: Dae Hyun
authors.initials: DH
authors.lastname: Cho
authors.affiliation: Sustainable Bioresource Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea.
authors.forename: Hee Sik
authors.initials: HS
authors.lastname: Kim
authors.affiliation: Department of Engineering (Nanotechnology Engineering), University of Waterloo 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada.
authors.forename: Sunghee
authors.initials: S
authors.lastname: Bang
authors.affiliation: Advanced Nano-Surface Research Group Korea Basic Science Institute (KBSI), Daejeon 305-333, Republic of Korea.
authors.forename: Soonjoo
authors.initials: S
authors.lastname: Seo
authors.affiliation: Department of Applied Chemistry and Biological Engineering, Chungnam National University, Daejeon 305-764, Republic of Korea.
authors.forename: Soon Chang
authors.initials: SC
authors.lastname: Lee
authors.affiliation: Advanced Nano-Surface Research Group Korea Basic Science Institute (KBSI), Daejeon 305-333, Republic of Korea.
authors.forename: Jonghan
authors.initials: J
authors.lastname: Won
authors.affiliation: Korea Advanced Institute of Science and Technology (KAIST), Research Analysis Center, Daejeon 305-701, Republic of Korea.
authors.forename: Byung-Chul
authors.initials: BC
authors.lastname: Son
authors.affiliation: Korea Basic Science Institute (KBSI), Daejeon 305-333, Republic of Korea.
authors.forename: Mino
authors.initials: M
authors.lastname: Yang
authors.affiliation: Advanced Nano-Surface Research Group Korea Basic Science Institute (KBSI), Daejeon 305-333, Republic of Korea.
authors.forename: Jouhahn
authors.initials: J
authors.lastname: Lee
mesh_terms: D002244:Carbon / Q000737:chemistry*; D002384:Catalysis / Q000528:radiation effects; D005456:Fluorescent Dyes / Q000138:chemical synthesis*; D055772:Green Chemistry Technology / Q000379:methods*; D008027:Light; D008422:Materials Testing; D010150:Paint; D010777:Photochemistry / Q000379:methods*; D045663:Quantum Dots / Q000737:chemistry* / Q000648:ultrastructure
chemical_list: D005456:Fluorescent Dyes; D002244:Carbon