Nano-ZnO photocatalysts were synthesized by hydrothermal method,doping with Ag.The structure,morphology and composition of the samples were characterized by X-Ray diffraction (XRD),scanning electron microscopy (SEM) and energy dispersive spectrometer (EDS).The as-prepared samples were used for photodegradation of methyl orange (MO) solution experiment.The results shown that ZnO was a hexagonal wurtzite structure in all samples,and Ag was a face-centered cubic structure.The agglomeration was serious for pure nano-ZnO sample.The as-prepared Ag/ZnO samples with Ag+ concentration of 2%,5%,and 10% had good dispersibility.Within a certain range of Ag+ doping concentration,the photodegradation rate of samples increased with the increase of Ag+ concentration,and the sample with Ag+ concentration of 5% had the highest photodegradation rate.But excessive Ag+ concentration will reduce the photodegradation rate of the samples.The experiment suggested that the photodegradation rate of samples was related with their surface morphology and structures.
Fu Xiaonan, Guo Yefei, Su Hangsong
. Study on hydrothermal synthesis and photocatalytic performance for Ag/ZnO[J]. New Chemical Materials, 2021
, 49(7)
: 175
-178
.
DOI: 10.19817/j.cnki.issn 1006-3536.2021.07.040
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