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Cyclohexanol dehydrogenation over Cu-loaded TiO2 photocatalyst under solar illumination

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Abstract

The liquid-phase selective dehydrogenation of cyclohexanol has been investigated using two classes of catalyst containing either Cu2O or CuO on TiO2 under solar light in deaerated conditions at room temperature using acetonitrile medium in a batch reactor. The effect on dehydrogenation of three conditions, cyclohexanol concentration, copper loading on TiO2, and amount of catalyst, were investigated. The maximum yield of cyclohexanone obtained was 40%. The catalysts were characterized by XRD, UV–DRS, TEM, SEM–EDAX, and XPS. It was found that 1% (w/w) Cu2O/TiO2 was 100% selective for photocatalytic dehydrogenation of cyclohexanol.

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Acknowledgments

Authors PAKR and MS thank CSIR Emeritus Scientist Scheme, and author KL thanks CSIR New Delhi for a SRF grant.

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Authors and Affiliations

  1. Inorganic and Physical Chemistry Division, Indian Institute of Chemical Technology, Hyderabad, 500607, India

    Basavaraju Srinivas, Kannekanti Lalitha, Police Anil Kumar Reddy, Gajeelli Rajesh, Valluri Durga Kumari & Machiraju Subrahmanyam

  2. Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore, 721102, India

    Bhudev Ranjan De

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  1. Basavaraju Srinivas
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  2. Kannekanti Lalitha
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  3. Police Anil Kumar Reddy
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  4. Gajeelli Rajesh
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Correspondence to Machiraju Subrahmanyam.

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Srinivas, B., Lalitha, K., Anil Kumar Reddy, P. et al. Cyclohexanol dehydrogenation over Cu-loaded TiO2 photocatalyst under solar illumination. Res Chem Intermed 37, 1069–1086 (2011). https://doi.org/10.1007/s11164-011-0315-x

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