title: Direct electrical power generation from urine, wastes and biomass with simultaneous photodecomposition and cleaning.
abstract: Electric power was for the first time generated directly from urine, wastes, and biomass with simultaneous photodecomposition and cleaning by using a biophotofuel cell (BPFC) composed of a nanoporous TiO2 film semiconductor photoanode and an O2-reducing cathode. Human urine exhibited a PFC characteristics with J(sc) 0.086 mA cm(-2), Voc 0.56 V, and fill factor (FF) 0.50 under irradiation by a solar simulator with AM 1.5 G and 100 mW cm(-2) incident light intensity. Both the soluble and residual parts of waste paper partially solubilized by a H3PO4 aqueous solution were also photodecomposed with simultaneous electrical power generation. As trials of various biomass materials, Coca-Cola (to test colored sample), Japanese rice wine (to test alcohol aqueous solution), and grated radish (to test slurry state sample) also generated effectively electrical power during photodecomposition by a solar simulator.
authors.affiliation: Faculty of Science, Ibaraki University, 2-1-1 Bunkyo, Mito 310-8512, Japan. mkaneko@mx.ibaraki.ac.jp
authors.forename: Masao
authors.initials: M
authors.lastname: Kaneko
authors.forename: Hirohito
authors.initials: H
authors.lastname: Ueno
authors.forename: Keita
authors.initials: K
authors.lastname: Ohnuki
authors.forename: Mizuki
authors.initials: M
authors.lastname: Horikawa
authors.forename: Rie
authors.initials: R
authors.lastname: Saito
authors.forename: Junichi
authors.initials: J
authors.lastname: Nemoto
mesh_terms: D001674:Bioelectric Energy Sources; D018533:Biomass; D003246:Conservation of Energy Resources / Q000379:methods; D011211:Electric Power Supplies; D004560:Electricity; D007220:Industrial Waste; D010777:Photochemistry / Q000295:instrumentation* / Q000379:methods*; D014556:Urine / Q000737:chemistry*
chemical_list: D007220:Industrial Waste