Enhanced Photocatalytic Degradation of Rhodamine B by Cu2O Coated Silicon Nanowire Arrays in Presence of H2O2
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2014年第11期
论文作者：Chengtao Yang Jinliang Wang Lirun Mei Xiaoyu Wang
文章页码：1124 - 1129
摘 要：Highly ordered Cu2 O coated silicon nanowire arrays（Si NWAs） were fabricated as photocatalyst via depositing Cu nanoparticles on silver-assisted electroless-etched Si NWAs and subsequently annealing. The as-prepared samples have been characterized by scanning electron microscopy, X-ray diffraction and UV e VIS e NIR spectrophotometry. The photocatalytic properties of the Cu2 O coated Si NWAs were investigated by degradation of Rhodamine B（Rh B） under simulated solar light with a cut-off filter（l > 420 nm）. The results indicated that H2O2 could greatly improve the photocatalytic properties of Cu2 O coated Si NWAs, and exhibited strong synergy effect between them. The hybrid nanowire arrays will be promising photocatalytic materials in the field of energy and environment.
Chengtao Yang，Jinliang Wang，Lirun Mei，Xiaoyu Wang
School of Physics and Nuclear Energy Engineering,Beihang University
摘 要：Highly ordered Cu2 O coated silicon nanowire arrays（Si NWAs） were fabricated as photocatalyst via depositing Cu nanoparticles on silver-assisted electroless-etched Si NWAs and subsequently annealing. The as-prepared samples have been characterized by scanning electron microscopy, X-ray diffraction and UV e VIS e NIR spectrophotometry. The photocatalytic properties of the Cu2 O coated Si NWAs were investigated by degradation of Rhodamine B（Rh B） under simulated solar light with a cut-off filter（l > 420 nm）. The results indicated that H2O2 could greatly improve the photocatalytic properties of Cu2 O coated Si NWAs, and exhibited strong synergy effect between them. The hybrid nanowire arrays will be promising photocatalytic materials in the field of energy and environment.
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