TY - JOUR
T1 - Controllable synthesis of ZnO hierarchical architectures and their photocatalytic property
AU - Fang, Linxia
AU - Zhang, Baoliang
AU - Li, Wei
AU - Li, Xiangjie
AU - Xin, Tinjun
AU - Zhang, Qiuyu
PY - 2014/11
Y1 - 2014/11
N2 - A facile solution route to synthesize ZnO hierarchical architectures was carried out employing trisodium citrate as structure-directing agent. Three different morphologies and crystal phase samples, including double-layer hexagonal prism ascribed to wurtzite ZnO (JCPDS No. 36-1451), porous microspheres ascribed to an unusual ZnO phase (JCPDS No. 21-1486) and smooth solid amorphous zinc citrate microsphere, were obtained. FESEM, TEM, XRD and FT-IR spectroscope were used to investigate the structure character of the products. The influence of the citrate concentration on ZnO microstructure was studied. It was found that the citrate concentration played a key role in evolution of the morphology and crystal phase. On the basis of experimental results, a possible formation mechanism of the ZnO hierarchical nanostructures was proposed. Photocatalytic property of the samples was evaluated by photodegradation reaction of methylene blue (MB) under UV irradiation. Among these products, double-layer hexagonal prism samples exhibited the highest photocatalytic activity.
AB - A facile solution route to synthesize ZnO hierarchical architectures was carried out employing trisodium citrate as structure-directing agent. Three different morphologies and crystal phase samples, including double-layer hexagonal prism ascribed to wurtzite ZnO (JCPDS No. 36-1451), porous microspheres ascribed to an unusual ZnO phase (JCPDS No. 21-1486) and smooth solid amorphous zinc citrate microsphere, were obtained. FESEM, TEM, XRD and FT-IR spectroscope were used to investigate the structure character of the products. The influence of the citrate concentration on ZnO microstructure was studied. It was found that the citrate concentration played a key role in evolution of the morphology and crystal phase. On the basis of experimental results, a possible formation mechanism of the ZnO hierarchical nanostructures was proposed. Photocatalytic property of the samples was evaluated by photodegradation reaction of methylene blue (MB) under UV irradiation. Among these products, double-layer hexagonal prism samples exhibited the highest photocatalytic activity.
KW - Photocatalytic activity
KW - Trisodium citrate
KW - ZnO
UR - https://www.scopus.com/pages/publications/84906688273
U2 - 10.1016/j.spmi.2014.03.001
DO - 10.1016/j.spmi.2014.03.001
M3 - 文章
AN - SCOPUS:84906688273
SN - 0749-6036
VL - 75
SP - 324
EP - 333
JO - Superlattices and Microstructures
JF - Superlattices and Microstructures
ER -