Author/Authors :
He، نويسنده , , Wen and Tian، نويسنده , , Xiuying and Du، نويسنده , , Yi and Sun، نويسنده , , Caiyun and Zhang، نويسنده , , Xudong and Han، نويسنده , , Xiuxiu and Han، نويسنده , , Shanshan and Sun، نويسنده , , Xianan and Du، نويسنده , , Xiaoyong and Yue، نويسنده , , Yuanzheng، نويسنده ,
Abstract :
Hollow cuprous oxide (Cu2O) microspheres with a diameter of ca. 1.8 μm are prepared by using yeast as template. The possible mechanism for the formation of the hollow Cu2O spheres is revealed. The biotemplated sample is investigated by means of X-ray diffraction (XRD), scanning electron microscopy (SEM) and ultraviolet–visible (UV–vis) absorption spectra. The sample consists of the crystalline Cu2O microspheres with diameters of about 59.5 nm and lattice parameter of 4.264 Å. The observed optical band gap of the product indicates that the blue–shift effect occurs, which is attributed to the hollow Cu2O microspheres.
Keywords :
Biomimetic synthesis , Hollow structure , Semiconducting materials , X-ray diffraction
