Photocatalytic Carbon Dioxide Reduction at p‐Type Copper(I) Iodide | Zendy

Baran Tomasz | Zendy; Wojtyła Szymon | Zendy; Dibenedetto Angela | Zendy; Aresta Michele | Zendy; Macyk Wojciech | Zendy

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Photocatalytic Carbon Dioxide Reduction at p‐Type Copper(I) Iodide

Author(s) -

Baran Tomasz,

Wojtyła Szymon,

Dibenedetto Angela,

Aresta Michele,

Macyk Wojciech

Publication year - 2016

Publication title -

chemsuschem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.412

H-Index - 157

eISSN - 1864-564X

pISSN - 1864-5631

DOI - 10.1002/cssc.201600289

Subject(s) - photocatalysis , copper , carbon dioxide , iodide , inorganic chemistry , electrochemical reduction of carbon dioxide , chemistry , reduction (mathematics) , titanium dioxide , materials science , catalysis , carbon monoxide , organic chemistry , metallurgy , geometry , mathematics

A p‐type semiconductor, CuI, has been synthesized, characterized, and tested as a photocatalyst for CO 2 reduction under UV/Vis irradiation in presence of isopropanol as a hole scavenger. Formation of CO, CH 4 , and/or HCOOH was observed. The photocatalytic activity of CuI was attributed to the very low potential of the conduction band edge (i.e., −2.28 V vs. NHE). Photocurrents generated by the studied material confirm a high efficiency of the photoinduced interfacial electrontransfer processes. Our studies show that p‐type semiconductors may be effective photocatalysts for CO 2 reduction, even better than extensively studied n‐type titanium dioxide, owing to the low potential of the conduction band edge.

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