【摘要】 利用机械化学法合成了单相ZnO粉体,XRD分析结果表明,ZnSO₄/NaOH（mol比）在1/2.1～1/3.0之间均可合成ZnO粒子,ZnO产率在ZnSO₄/NaOH为1/2.5时最大,TEM分析表明,ZnO粒子的粒径在40～80nm范围,对于反应机理,认为是固-固反应中放出的大量的热,使Zn（OH）₂直接转化为ZnO粒子,光吸收性能表明,纳米ZnO粉体的紫外吸收性能（200～400nm）较普通ZnO粉体强得多。更多还原

【Abstract】 ZnO nanoparticles were synthesized by the mechanochemical processing. XRD patterns indicate all products are single ZnO phase while ZnS04/NaOH(mol ratio)is in the range from 1/2.1 to 1/3.0, and ZnO yield will obtain the maximum when ZnSO4/NaOH(mol ratio) is 1/2.5. TEM micrographs show the particle size of ZnO is about 40~80nm. The heat released by the solid-solid reaction of ZnSO4 and NaOH makes the product of Zn(OH)2 tramsform directly to ZnO particles. The optical absorptivity of ultraviolet (200-400nm) for nanometer ZnO is much better than that of normal ZnO powders.更多还原