Photocatalytic Degradation of Cuprous Oxide Nanostructures Under UV/Visible Irradiation
Photocatalytic Degradation of Cuprous Oxide Nanostructures Under UV/Visible Irradiation
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DOI：
10.1007/s11269-012-0160-8
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发表时间：
2012-10
影响因子：
4.3
通讯作者：
Poonam Sharma;Shatendra Sharma
中科院分区：
文献类型：
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作者：
Poonam Sharma;Shatendra Sharma
以无水葡萄糖和抗坏血酸为还原剂，聚乙烯基吡咯烷酮（PVP）和十二烷基硫酸钠（SDS）为表面活性剂，采用溶液生长还原法合成了不同形貌的cu2o。利用透射电镜对纳米颗粒多面体的中空和多孔形貌以及不规则球形生长进行了分析。利用x射线衍射和电子衍射光谱技术分析了产物的结晶度、结构和相纯度。在本研究中，由于杂质离子的存在，没有检测到杂质信号。利用吸收光谱法对cu2onanots结构的吸收和光催化行为进行了研究。结果表明，与cu2纳米粒子相比，cu2多面体具有较高的光催化活性（99.56%）和较低的吸附量（32.81%）。文中还详细讨论了其中的初步机理。
Different morphologies ofCu2Ohave been synthesized via solution grown reduction route method using reducing agents as anhydrous dextrose and ascorbic acid and surfactants as Poly (vinyl pyrrolidone) (PVP) and sodium dodecyl sulfate (SDS). The hollow and porous morphology of polyhedrons and irregular spherical growth of nanoparticles have been analyzed employing transmission electron microscope. The crystallinity, structure, and phase purity of products were analyzed using X-ray diffraction and Electron Diffraction Spectroscopy techniques. None of the impurity signals were detected due to the presence of impurity ions in the present investigations. The absorption and photocatalytic behavior ofCu2Onanotsructures were investigated on the basis of total surface area available for catalytic activity using absorption spectroscopy. From obtained results, it is confirmed thatCu2Opolyhedrons possesses higher (99.56 %) photocatalytic activity and lower adsorption capacity (32.81 %) compare toCu2Onanoparticles. The tentative mechanism herein involved is also discussed in detail.