Direct electrical power generation from urine, wastes and biomass with simultaneous photodecomposition and cleaning

被引:39
作者
Kaneko, Masao [1 ]
Ueno, Hirohito [1 ]
Ohnuki, Keita [1 ]
Horikawa, Mizuki [1 ]
Saito, Rie [1 ]
Nemoto, Junichi [1 ]
机构
[1] Ibaraki Univ, Fac Sci, 2-1-1 Bunkyo, Mito, Ibaraki 3108512, Japan
基金
日本科学技术振兴机构;
关键词
biophotofuel cell; urine photodecomposition; electrical power generation; TiO2; film; biowastes;
D O I
10.1016/j.bios.2007.03.021
中图分类号
Q6 [生物物理学];
学科分类号
071011 ;
摘要
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 O-2-reducing cathode. Human urine exhibited a PFC characteristics with J(sc) 0.086 mA cm(-2), V-oc 0.56 V, and fill factor (FF) 0.50 under irradiation by a solar simulator with AM 1.5 G and too 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. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:140 / 143
页数:4
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