relation: https://khub.utp.edu.my/scholars/11665/
title: Influence of seeding layer on photoelectrochemical hydrogen production over TiO 2 nanorod decorated with reduced graphene oxide
creator: Bashiri, R.
creator: Mohamed, N.M.
creator: Ling, L.Y.
creator: Suhaimi, N.A.
creator: Shahid, M.U.
creator: Sufian, S.
creator: Kait, C.F.
creator: Saheed, S.M.
description: A seeded TiO 2 nanorod decorated with reduced graphene oxide (rGO) was synthesized to improve solar hydrogen production performance in a photoelectrochemical cell. The rutile TiO 2 nanorod was grown on the surface of the screen-printed anatase TiO 2 /fluorine-doped tin oxide (FTO) substrate via hydrothermal technique and then rGO was deposited on the surface of seeded TiO 2 nanorod by spin-coating and thermal treatment. The photocatalytic activities are evaluated in terms of hydrogen production and photoelectrochemical properties. X-ray diffractometer and transmission electron microscopy show the presence of anatase and rutile TiO 2 with different lattice fringes and rGO on the surface of the photocatalyst. Field-emission scanning electron microscopy reveals that introducing seed layer increased the density of the nanorod and its active surface area. X-Ray photoelectron spectroscopy (XPS) and Raman spectra confirmed a strong interaction between TiO 2 and rGO, leading to better charge carrier transfers and reduce their recombination rate. The photocurrent density of seeded TiO 2 nanorod@ rGO was higher than rutile or anatase TiO 2 @ rGO due to low charge transfer resistance and long electron lifetime. The seeded TiO 2 nanorod@ rGO composites produced a maximum accumulative hydrogen of 1200 mmol/cm 2 in a mixture of 1 M KOH and 5 vol glycerol in the photoelectrochemical cell under visible light irradiation compared with rutile or anatase TiO 2 @rGO. It is believed that this predominant photocatalytic activity is due to the synergistic contribution of direct electron transport between anatase and rutile TiO 2 phases, a high electron mobility of rGO and an increased surface area originated from TiO 2 nanorod. © 2019 Elsevier B.V.
publisher: Elsevier Ltd
date: 2019
type: Article
type: PeerReviewed
identifier:   Bashiri, R. and Mohamed, N.M. and Ling, L.Y. and Suhaimi, N.A. and Shahid, M.U. and Sufian, S. and Kait, C.F. and Saheed, S.M.  (2019) Influence of seeding layer on photoelectrochemical hydrogen production over TiO 2 nanorod decorated with reduced graphene oxide.  Diamond and Related Materials, 94.  pp. 194-202.  ISSN 09259635     
relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85063165783&doi=10.1016%2fj.diamond.2019.03.006&partnerID=40&md5=7cdd2ba83cd74c4682fc7c3a74f30da3
relation: 10.1016/j.diamond.2019.03.006
identifier: 10.1016/j.diamond.2019.03.006