Soft-Template Synthesis and Characterization of ZnO2 and ZnO Hollow Spheres

被引：105
|
作者：
Cheng, S. [1 ]
Yan, D. [1 ]
Chen, J. T. [1 ]
Zhuo, R. F. [1 ]
Feng, J. J. [1 ]
Li, H. J. [1 ]
Feng, H. T. [1 ]
Yan, P. X. [1 ,2 ]
机构：
[1] Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China
[2] Chinese Acad Sci, Inst Chem & Phys, Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
来源：
JOURNAL OF PHYSICAL CHEMISTRY C | 2009年 / 113卷 / 31期
关键词：
CARBOXYLATED NITRILE RUBBER; ROOM-TEMPERATURE SYNTHESIS; PHOTOCATALYTIC ACTIVITY; THERMAL-DECOMPOSITION; AQUEOUS-SOLUTION; ZINC PEROXIDE; THIN-FILMS; MICROSPHERES; FABRICATION; NANOSPHERES;
D O I：
10.1021/jp9036028
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Zinc peroxide (ZnO2) hollow spheres of 100-200 nm diameter were synthesized by a simple hydrothermal method by using H2O2 and ZnO powder as reagents without the assistance of any surfactant. O-2 bubbles in situ generated by the decomposition of H2O2 Served as a soft template in the formation of ZnO2 spheres. Zinc oxide (ZnO) hollow spheres were obtained by heat treatment of ZnO2 hollow spheres at 180 degrees C for 10 h in air. The products were characterized by XRD, FT-IR, TEM, HRTEM, and FESEM. The transition temperature of ZnO2 to ZnO was determined to be 229 degrees C by TG-DTA. Photoluminescence (PL) properties of the products were investigated and the origin of the two peaks at 392 and 448 nm in the PL spectrum of ZnO2 was discussed. Furthermore, the growth mechanism of the ZnO2 hollow spheres was discussed in detail.
引用
收藏
页码：13630 / 13635
页数：6
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