
Facile Synthesis of r-GO @Pd/TiO2 Nanocomposites and Its Photocatalytic Activity Under Visible Light
Reduced Graphene Oxide Wrapped Pd/TiO2 ([email protected]/TiO2) which exhibited high photocatalytic activity under visible light was synthesized from commercial chemicals. The classic sol–gel method and the Ar gas bubbling composition was used in the preparation of
the catalyst. Furthermore, the best Pd-doping concentration in crystals, the wrapping concentration of r-GO over nanoparticles, and the optimal calcination temperature were investigated to enhance the photocatalytic activity of the hybrid catalyst. The experimental results showed that the
catalytic efficiency of [email protected]/TiO2 reached maximum value at the optimum synthesis conditions: 0.7 wt% Pd-doped TiO2 by sol–gel process, calcination temperature of 550 °C, 1 mg of GO for 100 gram wrapped Pd/TiO2. X-ray Diffraction (XRD), Scanning
Electron Microscopy (SEM), and Transmission Electron Microscopy (TEM) techniques were conducted to determine the nanostructure of the catalysts. The average crystallite size of nanoparticles was 14 nm with perfect dispersion of Pd dots and wraps of r-GO membrane. Methyl Blue was used as an
organic dye model to test the ability in wastewater treatment of the catalysts. A comparison between different catalysts’ characteristics was also studied. The [email protected]/TiO2 showed a higher photocatalytic activity compared to Pd/TiO2 and commercial P25. Additionally,
the complete dye reduction under visible light excitation indicated that wrapping r-GO round Pd/TiO2 improved the photocatalytic activity of catalysts. The determination of the stability of [email protected]/TiO2 showed that its photocatalysis was persistent over several times
of recycling examination. Therefore, [email protected]/TiO2 in wastewater treatment.
Keywords: Photocatalytic; Reduce Graphene; Sol–Gel; TiO2; Visible Light
Document Type: Research Article
Affiliations: 1: Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China 2: Department of Chemistry, Hue University of Sciences, 77 Nguyen Hue, Hue, Thua Thien Hue, 531009, Vietnam
Publication date: April 1, 2016
- Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
- Editorial Board
- Information for Authors
- Subscribe to this Title
- Terms & Conditions
- Ingenta Connect is not responsible for the content or availability of external websites
- Access Key
- Free content
- Partial Free content
- New content
- Open access content
- Partial Open access content
- Subscribed content
- Partial Subscribed content
- Free trial content