Synthesis of ZnO crystals with unique morphologies by a low-temperature solvothermal process and their photocatalytic deNO x properties

被引:9
作者
Long, Tengfa [1 ]
Dong, Xiaoli [2 ,3 ]
Liu, Xiangwen [2 ]
Liu, Jinxiao [2 ,3 ]
Yin, Shu [2 ]
Sato, Tsugio [2 ]
机构
[1] Guangxi Normal Univ, Guilin, Guangxi, Peoples R China
[2] Tohoku Univ, IMRAM, Sendai, Miyagi 980, Japan
[3] Dalian Polytech Univ, Dalian, Peoples R China
关键词
ZnO nanoparticles; Special morphology; Photocatalytic activity; ZINC-OXIDE FILMS; OPTICAL-PROPERTIES; FABRICATION; SUBSTRATE;
D O I
10.1007/s11164-010-0114-9
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A series of unique morphologies of ZnO were synthesized by a simple mild solvothermal process using equimolar of Zn(NO3)(2)/Zn(AC)(2)-hexamethylenetetramine (HMT) acting as precursors and ethylene glycol (EG) and triethylamine (TEA) as the dispersant and surfactant additive, respectively. When the as-prepared particles were further treated in 0.02 M HMT solution for such a long time as 72 h, screw-like and rose-like crystals with three-dimensional and developed structure could be formed. The deNO (x) photocatalytic activity was characterized and the analysis results showed that the modified ZnO crystals possessed a three-dimensionally developed structure and had higher deNO (x) photocatalytic activity compared to that of the as-prepared untreated ZnO.
引用
收藏
页码:61 / 67
页数:7
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