Synthesis and photocatalysis of Ni,C co-doped ZnO composites
The precursors of Ni,C co-doped ZnO were synthesized by a co-precipitation adsorption method using AR14 as carbon source,Zn(NO3)2·6H2O and Ni(NO3)2·6H2O as the raw materials of semiconductor,and the target products were obtained by calcination of precursors in N2.Effect of main factors on the photocatalytic efficiency of products were investigated by the orthogonal experimental method.The obtained products were characterized by XRD,PL,FT-IR,UV-VIS,XPS,etc.,and the results showed that the introduction of moderate Ni and C into ZnO increased the concentration of oxygen vacancies and formed a large number of carbon bonds,facilitating the separation of photoelectrons and holes.RhB was used as the probe molecule to investigate the photocatalytic activity of the resulted products and the results illustrated that the photocatalytic efficiency of NiO/C/ZnO-5 is higher than those of ZnO,NiO,ZnO/C,NiO/C,ZnO/NiO and other NiO/C/ZnO samples.
ZnO based compositesNi,C co-dopingacid dyephotocatalysiselectron-hole pair
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