TY - JOUR
T1 - Hydrogen peroxide generation and photocatalytic degradation of estrone by microstructural controlled ZnO nanorod arrays
AU - Liu, Yangsi
AU - Han, Jie
AU - Qiu, Wei
AU - Gao, Wei
PY - 2012/12/15
Y1 - 2012/12/15
N2 - The strong oxidant, hydrogen peroxide (H 2 O 2 ), generated by ZnO nanorod arrays under UV light irradiation was monitored by fluorescence analysis. The ZnO nanorod arrays were synthesized via a low temperature hydrothermal method and their dimensions, i.e., diameter and height, can be controlled by adjusting the concentration of zinc nitrate (Zn(NO 3 ) 2 ·6H 2 O) and hexamethylenetetramine (HMT). The morphology, nanostructure, surface roughness and optical property were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), atomic force microscopy (AFM) and transmittance spectra, respectively. The ZnO nanorod arrays were applied in the degradation of estrone, which is an emerging steroid estrogen contaminant. The results revealed that the ZnO nanorod array produced from 25 mM Zn 2+ and HMT had the highest aspect ratio, the largest surface roughness and the lowest band gap energy, which was beneficial to the efficiency of UV light utilization, photocatalytic degradation of estrone and H 2 O 2 generation.
AB - The strong oxidant, hydrogen peroxide (H 2 O 2 ), generated by ZnO nanorod arrays under UV light irradiation was monitored by fluorescence analysis. The ZnO nanorod arrays were synthesized via a low temperature hydrothermal method and their dimensions, i.e., diameter and height, can be controlled by adjusting the concentration of zinc nitrate (Zn(NO 3 ) 2 ·6H 2 O) and hexamethylenetetramine (HMT). The morphology, nanostructure, surface roughness and optical property were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), atomic force microscopy (AFM) and transmittance spectra, respectively. The ZnO nanorod arrays were applied in the degradation of estrone, which is an emerging steroid estrogen contaminant. The results revealed that the ZnO nanorod array produced from 25 mM Zn 2+ and HMT had the highest aspect ratio, the largest surface roughness and the lowest band gap energy, which was beneficial to the efficiency of UV light utilization, photocatalytic degradation of estrone and H 2 O 2 generation.
KW - Estrone
KW - Fluorescence
KW - Microstructure
KW - Photocatalysis
KW - ZnO nanorod array
UR - https://www.scopus.com/pages/publications/84869489936
U2 - 10.1016/j.apsusc.2012.09.067
DO - 10.1016/j.apsusc.2012.09.067
M3 - 文章
AN - SCOPUS:84869489936
SN - 0169-4332
VL - 263
SP - 389
EP - 396
JO - Applied Surface Science
JF - Applied Surface Science
ER -