Liu Xiao, Liu HongLing, Zhang WenXing, Li XueMei, Fang Ning, Wang XianHong, Wu JunHua
Key Lab of Polyoxometalate Chemistry of Henan Province, Institute of Molecular and Crystal Engineering, School of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475001 China.
Shangqiu Normal University, Shangqiu, HeNan Province 476000 China.
Nanoscale Res Lett. 2015 Apr 23;10:195. doi: 10.1186/s11671-015-0895-2. eCollection 2015.
Bi-phase dispersible Cu-ZnO hybrid nanoparticles were synthesized by one-pot non-aqueous nanoemulsion with the use of poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) (PEO-PPO-PEO) as the surfactant. The transmission electron microscopy (TEM) and X-ray diffraction (XRD) show high crystallinity of the Cu-ZnO hybrid nanoparticles and an average particle size of ~19.4 nm. The ultraviolet-visible light absorbance spectrometry (UV-vis) and photoluminescence spectrophotometry (PL) demonstrate well dispersibility and excellent optical performance of Cu-ZnO hybrid nanoparticles both in organic and aqueous solvent. The X-ray photoelectron spectroscopy (XPS) confirms Cu(1+) and Cu(2+) in ZnO. The observation using Sudan red (III) as probe molecule reveals that the Cu-ZnO hybrid nanoparticles possess enhanced photocatalytic activity and stability which are promising for potential applications in photocatalysis.
通过一锅法非水纳米乳液，以聚（乙二醇）-嵌段-聚（丙二醇）-嵌段-聚（乙二醇）（PEO-PPO-PEO）作为表面活性剂，合成了双相可分散的Cu-ZnO杂化纳米颗粒。透射电子显微镜（TEM）和X射线衍射（XRD）表明，Cu-ZnO杂化纳米颗粒具有高结晶度，平均粒径约为19.4 nm。紫外-可见吸光光谱（UV-vis）和光致发光光谱（PL）表明，Cu-ZnO杂化纳米颗粒在有机溶剂和水性溶剂中均具有良好的分散性和优异的光学性能。X射线光电子能谱（XPS）证实了ZnO中存在Cu(1+)和Cu(2+)。以苏丹红（III）作为探针分子的观察结果表明，Cu-ZnO杂化纳米颗粒具有增强的光催化活性和稳定性，在光催化领域具有潜在的应用前景。
