News Column

Findings on Oxides Detailed by Investigators at CSIR

June 24, 2014

By a News Reporter-Staff News Editor at Life Science Weekly -- Research findings on Oxides are discussed in a new report. According to news reporting from Andhra Pradesh, India, by NewsRx journalists, research stated, "New graphene oxide (GO)-tethered-Co-II phthalocyanine complex [CoPc-GO] was synthesized by a stepwise procedure and demonstrated to be an efficient, cost-effective and recyclable photocatalyst for the reduction of carbon dioxide to produce methanol as the main product. The developed GO-immobilized CoPc was characterized by X-ray diffraction (XRD), FTIR, XPS, Raman, diffusion reflection UV/Vis spectroscopy, inductively coupled plasma atomic emission spectroscopy (ICP-AES), thermogravimetric analysis (TGA), Brunauer-Emmett-Teller (BET), scanning electron microscopy (SEM), and transmission electron microscopy (TEM)."

The news correspondents obtained a quote from the research from CSIR, "FTIR, XPS, Raman, UV/Vis and ICP-AES along with elemental analysis data showed that Co-II-Pc complex was successfully grafted on GO. The prepared catalyst was used for the photocatalytic reduction of carbon dioxide by using water as a solvent and triethylamine as the sacrificial donor. Methanol was obtained as the major reaction product along with the formation of minor amount of CO (0.82%). It was found that GO-grafted CoPc exhibited higher photocatalytic activity than homogeneous CoPc, as well as GO, and showed good recoverability without significant leaching during the reaction. Quantitative determination of methanol was done by GC flame-ionization detector (FID), and verification of product was done by NMR spectroscopy. The yield of methanol after 48h of reaction by using GO-CoPc catalyst in the presence of sacrificial donor triethylamine was found to be 3781.8881molg(-1)cat., and the conversion rate was found to be 78.7893molg(-1)cat.h(-1)."

According to the news reporters, the research concluded: "After the photoreduction experiment, the catalyst was easily recovered by filtration and reused for the subsequent recycling experiment without significant change in the catalytic efficiency."

For more information on this research see: Cobalt Phthalocyanine Immobilized on Graphene Oxide: An Efficient Visible-Active Catalyst for the Photoreduction of Carbon Dioxide. Chemistry-A European Journal, 2014;20(20):6154-6161. Chemistry-A European Journal can be contacted at: Wiley-V C H Verlag Gmbh, Boschstrasse 12, D-69469 Weinheim, Germany (see also Oxides).

Our news journalists report that additional information may be obtained by contacting P. Kumar, CSIR Indian Inst Chem Technol, Inorgan & Phys Chem Div, Hyderabad 500607, Andhra Pradesh, India. Additional authors for this research include A. Kumar, B. Sreedhar, B. Sain, S.S. Ray and S.L. Jain.

Keywords for this news article include: Asia, India, Alcohols, Methanol, Chemicals, Chemistry, Photocatalyst, Andhra Pradesh, Carbon Dioxide, Nanotechnology, Photocatalytic, Emerging Technologies, Inorganic Carbon Compounds

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC

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Source: Life Science Weekly

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