Green Cu 2 O/TiO 2 heterojunction for glycerol photoreforming
Catalysis Today(2020)
摘要
A rapid and sustainable route for synthesizing a green photocatalyst based on nanometric Cu 2 O clusters dis- persed on TiO 2 (= 2 wt%) was developed. These nanoclusters were synthesized using reducing sugars (0.85 wt %) from aqueous onion waste ( Allium cepa ) as reducing and stabilizing agent. All this under microwave irra- diation. Green photocatalysts produced hydrogen through glycerol photoreforming, ca. 4.7 mmol H 2 /g cat . The recyclability and reusability of these materials were demonstrated and the achieved heterojunction between Cu 2 O and TiO 2 exhibited a bandgap within the visible spectrum at 2.80 eV, showing potential feasibility to solarize this process.
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关键词
Glycerol photoreforming,Solar hydrogen,Microwave-assisted synthesis,Green photocatalysts,( Allium cepa ) waste
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