title: Sonochemical/hydration-dehydration synthesis of Pt-TiO2NPs/decorated carbon nanotubes with enhanced photocatalytic hydrogen production activity.
abstract: Modified Pt-TiO2NPs/decorated carbon nanotubes were synthesized utilizing sonochemical/hydration-dehydration techniques. Pt was loaded on TiO2by a photodeposition method keeping in mind the end goal to achieve electron-hole pair separation and promote the surface reaction. The morphological and basic properties of Pt-TiO2/fCNTs were investigated by field emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM), powder X-ray diffraction (XRD), UV-vis diffuse reflectance spectroscopy (DRS), photoluminescence (PL) and Raman spectroscopy. The selected area electron diffraction (SAED) patterns of Pt-TiO2/fCNTs were obtained utilizing TEM-based energy dispersive X-ray spectroscopy (EDXS) analysis. It was found that the TiO2nanoparticles were uniformly distributed on the fCNTs, and the Pt particles were decorated on the surface of TiO2/fCNTs. The photocatalytic hydrogen production activity of the Pt(0.5%)-TiO2/fCNTs(0.5%)nanoparticle composites was investigated using a sacrificial agent methanol solution. Pt-loaded TiO2demonstrated a hydrogen evolution rate around 20 times that of TiO2/fCNTs(0.5%)(fSWCNTs, fMWCNTs). When compared with platinized TiO2in methanol, which was utilized as a control material, Pt-TiO2/fCNTs demonstrated an almost 2-fold increment in hydrogen generation.
authors.affiliation: Chemistry Department, College of Education for Pure Sciences, Diyala University, Diyala, Iraq.
authors.forename: Firas H
authors.initials: FH
authors.lastname: Abdulrazzak
authors.affiliation: College of Pharmacy, Babylon University, Hilla, Iraq.
authors.forename: Falah H
authors.initials: FH
authors.lastname: Hussein
authors.affiliation: Department of Chemistry, College of Science for Women, Babylon University, Hilla, Iraq and Institut für Technische Chemie, Leibniz Universität Hannover, Callinstrasse 3, D-30167, Hannover, Germany. alkaim@iftc.uni-hannover.de.
authors.forename: Ayad F
authors.initials: AF
authors.lastname: Alkaim
authors.affiliation: Institut für Technische Chemie, Leibniz Universität Hannover, Callinstrasse 3, D-30167, Hannover, Germany. alkaim@iftc.uni-hannover.de.
authors.forename: Irina
authors.initials: I
authors.lastname: Ivanova
authors.affiliation: Laboratory "Photoactive Nanocomposite Materials", Saint-Petersburg State University, Ulyanovskaya str. 1, Peterhof, Saint-Petersburg 198504, Russia.
authors.forename: Alexei V
authors.initials: AV
authors.lastname: Emeline
authors.affiliation: Institut für Technische Chemie, Leibniz Universität Hannover, Callinstrasse 3, D-30167, Hannover, Germany. alkaim@iftc.uni-hannover.de and Laboratory "Photoactive Nanocomposite Materials", Saint-Petersburg State University, Ulyanovskaya str. 1, Peterhof, Saint-Petersburg 198504, Russia.
authors.forename: Detlef W
authors.initials: DW
authors.lastname: Bahnemann