One-pot Synthesis of Carbon-doped TiO2 with Bimetallic Ni-Ag co-catalysts in Photodegradation of Methylene Blue under UV and Visible Irradiation

Abstract

Carbon modified-titanium dioxide (@C-TiO2) was prepared by one-pot procedure from TiCl4 and glucose under hydrothermal conditions at 150 ºC for 24 hours. The obtained @C-TiO2 was employed as support for Ni-Ag(3.0)@C-TiO2 nanocomposite (3.0 is the Ni/Ag molar ratio). The synthesized catalysts were characterized by means of XRD and UV-Vis DRS Spectroscopy. The XRD patterns of @TiO2 show the brookite as the main phase, meanwhile the main phase in the @C-TiO2, Ni-Ag(3.0)@TiO2 and Ni-Ag(3.0)@C-TiO2 nanocomposites were anatase. The band gap of the TiO2 sample slightly shifted to the visible range after the addition of C dopant or Ni-Ag(3.0) co-catalyst as indicated by UV-Vis DRS spectra. Ni-Ag(3.0)@C-TiO2 catalyst showed high photocatalytic activity for photodegradation of MB under both UV and visible irradiations at 60 ºC within 2 hours with maximum MB conversion of 67.5% and 54.1%, respectively. The synergistic action of C dopant or Ni-Ag(3.0) co-catalyst is believed to be important in the improvement of photocatalytic activity of @TiO2. Copyright ©2019 BCREC Group. All rights reserved

Selective hydroconversion of coconut oil-derived lauric acid to alcohol and aliphatic alkane over MoOx-modified Ru catalysts under mild conditions

“…71 Interestingly, Ru-MoO x supported on carbon doped-titanium oxide (Ru-MoO x /C-TiO 2 ), which was obtained from one-pot hydrothermal of TiCl 4 and glucose solutions at 150 C for 24 h as reported previously (XRD patterns are shown in Fig. S7, in the ESI †), 72,73 gave dodecane-1-ol (68%), n-dodecane (23%), and others (8%) (entry 2). Ru-MoO x supported on g-Al 2 O 3 and SiO 2 catalysts showed lower lauric acid conversion (72-80%) and produced dodecane- 1ol (52-63%), n-dodecane (10-12%), and others ($8%) (entries 3-4).…”

Synthesis and Characterization of Ag@C-TiO2 Nanocomposite for Degradation of Sasirangan Textile Wastewater

“…Figure 1. Schematic diagram of the reactor for the photodegradation of methylene blue Ag@C-Ti02 nanocomposites [12].…”