Research on Au-modified porous single crystalline ZnO nanoplates and their sensing properties to formaldehyde
SUN Yu-feng
ZHENG Han-xiong
GE Sheng
MENG Fan-li
HOU Nan-nan
JIN Zhen
LIU Jin-huai
Abstract：With zinc acetate and urea as raw materials,the porous single crystalline ZnO nanoplates were pre-pared by hydrothermal method combined with the heat treatment process.The Au nanoparticles were synthe-sized by the citric acid reduction method.Then,polyethylenimine (PEI)was used to modify the porous single crystalline ZnO nanoplates followed by anchoring Au nanoparticles (NPs)on their surface through electrostatic interactions.The as-prepared products were characterized by X-ray diffraction (XRD),scanning electron microscopy (FE-SEM)and energy dispersive spectrum (EDS).The porous ZnO nanostructures and the suc-cessful modification of Au nanoparticles were observed.The gas sensitivity experiment showed the as-prepared products exhibited the remarkable selectivity to formaldehyde,the best working temperature was 300 ℃ and a favorable linear response range was 1 0 ~500 ×1 0 -6 .
Keywords：porous single crystal-lineZnO nanoplatesAu nanoparticlesform-aldehyde detection
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 1-7 )