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研究了低浓度(0.01～0.20mol/L)N2H4.H2O条件下ZnO微晶的低温水热结晶特性。N2H4.H2O弱碱性和N2H5+吸附配位性影响ZnO微晶的形核和各晶面的生长速率。随着N2H4.H2O浓度的提高,ZnO微晶分别呈板条状、六角片状和六角棒束状。碱性分散剂和超声的分散作用影响主要在成核阶段;受分散剂弱碱性的影响,0.20mol/L N2H4.H2O显现出强的还原性,N2气泡模板生长机制使所制ZnO微晶呈六角管状晶须束。
The low-temperature hydrothermal crystallization of ZnO crystallites at low concentration (0.01-0.20 mol / L) N2H4.H2O was studied. N2H4.H2O weakly basic and N2H5 + adsorption coordination affect the nucleation of ZnO crystallites and the growth rate of each crystal plane. With the increase of the concentration of N2H4.H2O, ZnO crystallites were lath, hexagonal lamellar and hexagonal rods. The dispersant effect of basic dispersant and ultrasonic wave is mainly in the nucleation stage. Under the influence of weakly alkaline dispersant, 0.20mol / L N2H4.H2O shows strong reducibility. The growth mechanism of N2 bubble template makes the ZnO crystallites Hexagonal tubular whisker beam.