通过在水中对铜锌合金进行脉冲激光烧蚀制备的（锌，氢）共掺杂氧化铜纳米颗粒

(Zn,H)-codoped copper oxide nanoparticles via pulsed laser ablation on Cu-Zn alloy in water.

作者信息

Lin Bo-Cheng, Chen Shuei-Yuan, Shen Pouyan

机构信息

Department of Materials and Optoelectronic Science, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan.

出版信息

Nanoscale Res Lett. 2012 May 30;7(1):272. doi: 10.1186/1556-276X-7-272.

DOI:10.1186/1556-276X-7-272

PMID:22647312

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3444393/

Abstract

Nanosized (5 to 10 nm) amorphous and crystalline nanocondensates, i.e., metallic α-phase of Zn-Cu alloy in face-centered cubic structure and (Zn,H)-codoped cuprite (Cu2O) with high-pressure-favored close-packed sublattice, were formed by pulsed laser ablation on bulk Cu65Zn35 in water and characterized by X-ray/electron diffractions and optical spectroscopy. The as-fabricated hybrid nanocondensates are darkish and showed photoluminescence in the whole visible region. Further dwelling of such nanocondensates in water caused progressive formation of a rice-like assembly of (Zn,H)-codoped tenorite (CuO) nanoparticles with (001), (100), and {111} preferred orientations, (111) tilt boundary, yellowish color, and minimum bandgap narrowing down to ca. 2.7 eV for potential photocatalytic applications.

摘要

通过在水中对块状Cu65Zn35进行脉冲激光烧蚀，形成了纳米尺寸（5至10纳米）的非晶态和晶态纳米凝聚物，即面心立方结构的Zn-Cu合金金属α相和具有高压有利于密堆积亚晶格的（Zn，H）共掺杂铜酸盐（Cu2O），并通过X射线/电子衍射和光谱学对其进行了表征。所制备的混合纳米凝聚物颜色较深，在整个可见光区域都显示出光致发光。这种纳米凝聚物在水中的进一步停留导致了具有（001）、（100）和{111}择优取向、（111）倾斜边界、淡黄色以及最小带隙窄至约2.7 eV的（Zn，H）共掺杂黑铜矿（CuO）纳米颗粒的米状聚集体逐渐形成，可用于潜在的光催化应用。