Biogenic C-doped titania templated by cyanobacteria for visible-light photocatalytic degradation of Rhodamine B.
Cyanobacteria, which occurred in eutrophic water harvest solar light to carry out photosynthesis with high efficiency. In this work, cyanobacteria (Microcystis sp.) were used as biotemplate to synthesize titania structure. The synthesized titania sample had similar morphology to that of the original template in spite of the fragile unicellular structures and extremely high water content of cyanobacterial cells. Incorporation of biogenic C, as well as the morphology inherited from biotemplate improved visible-light absorbance of the titania structure. The sample exhibited higher visible-light photocatalytic activity than commercial titania photocatalyst Degussa P25 for Rhodamine B (RhB) degradation. Compared with those C-doped titania photocatalysts prepared by other methods, cyanobacteria templated titania photocatalyst offer some potential for competitive advantages. The reported strategy opened up a new use for the cyanobacteria. It could also be used for titania in applications such as treatment of polluted water, dye-sensitized solar cells, or other regions.
['He|Jiao|J|', 'Zi|Guoli|G|', 'Yan|Zhiying|Z|', 'Li|Yongli|Y|', 'Xie|Jiao|J|', 'Duan|Deliang|D|', 'Chen|Yongjuan|Y|', 'Wang|Jiaqiang|J|']
D000458:Cyanobacteria D005456:Fluorescent Dyes D008027:Light D055668:Photochemical Processes D012235:Rhodamines D014025:Titanium D014874:Water Pollutants, Chemical
C-doped titania cyanobacteria visible-light photocatalysis