Precursor template synthesis of three-dimensional mesoporous ZnO hierarchical structures and their photocatalytic properties

被引：69

作者：

Xu, Lingling ^{[1
]}

Li, Zeming ^{[1
]}

Cai, Qinghai ^{[2
]}

Wang, Hongxia ^{[2
]}

Gao, Hong ^{[1
]}

Lv, Wei ^{[1
]}

Liu, Jia ^{[1
]}

机构：

[1] Harbin Normal Univ, Sch Phys & Elect Engn, Dept Phys, Heilongjiang Key Lab Adv Funct Mat & Excited Stat, Harbin 150025, Peoples R China

[2] Harbin Normal Univ, Dept Chem, Coll Chem & Chem Engn, Harbin 150025, Peoples R China

来源：

CRYSTENGCOMM | 2010年 / 12卷 / 07期

关键词：

ASSISTED SYNTHESIS; NANOSTRUCTURES; GROWTH; NANOPARTICLES; ARCHITECTURES; NANOSHEETS; NANORODS; SURFACE;

D O I：

10.1039/b924097g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this paper, three-dimensional mesoporous Zinc oxide (ZnO) hierarchical structures were fabricated from the thermal-decomposition of layered basic zinc carbonate (LBZC) precursors, which were synthesized by an urea hydrothermal method without a surfactant. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to characterize the LBZC precursors and mesoporous ZnO hierarchical structures. The results of N(2) adsorption-desorption isotherms indicated that the pore size distribution and specific surface area can be tailored by varying the urea amount and the annealing temperature. Photocatalytic activity of the mesoporous ZnO was evaluated using the degradation of methyl orange. The influence of urea content and annealing temperature on the morphology and surface specific areas and the effect of BET areas on the photocatalytic activity were discussed. Hierarchical ZnO flowers with 0.006 mol urea added annealed at 300 degrees C showed good photocatalytic activity.

引用

页码：2166 / 2172

页数：7

共 26 条

[1] Preparation and characterization of zinc hydroxide carbonate and porous zinc oxide particles [J].