J Colloid Interface Sci 2021 Apr 20;598:260-273. Epub 2021 Apr 20.
Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 20224, Taiwan; Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung 20224, Taiwan; School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan. Electronic address:
We report a one-pot, room-temperature, morphology-controlled synthesis of titanium oxide (TiO)-gold nanocomposites (TiO-Au NCs) using HAuCl and TiCl as precursors, and catechin as reducing agent. TiO-Au NCs have a range of morphologies from star-like to urchin-like shape depending on the concentration of TiCl in the reaction mixture. The urchin-shaped TiO-Au NCs exhibited excellent photocatalytic activity toward dye degradation due to strong light absorption, plasmon-induced excitation, high conductivity of the gold, and reduced hole-electron pair recombination. Read More