title: Photocatalytic reduction of CO₂: from molecules to semiconductors.
abstract: We are facing three serious problems related to fossil resources, i.e., shortage of energy, shortage of carbon resources, and the global worming problem. Development of practical systems for converting CO₂ to useful chemicals using solar light, i.e., photocatalytic CO₂ reduction systems, should be one of the best solutions for these problems. In this article, we review photocatalytic CO₂ reduction systems, which are classified in two categories: (1) homogeneous reaction systems mainly using transition metal complexes, and (2) heterogeneous systems mainly using inorganic semiconductor as a light absorber.
authors.affiliation: Department of Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1-E1-9 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan.
authors.forename: Tatsuto
authors.initials: T
authors.lastname: Yui
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Tamaki
authors.forename: Keita
authors.initials: K
authors.lastname: Sekizawa
authors.forename: Osamu
authors.initials: O
authors.lastname: Ishitani
mesh_terms: D002245:Carbon Dioxide / Q000737:chemistry*; D002384:Catalysis; D010777:Photochemistry; D012666:Semiconductors
chemical_list: D002245:Carbon Dioxide