【摘要】 以过硫酸钾(K2S2O8)和硫酸锰(MnSO4.H2O)为反应起始原料,采用液相法制备出了纳米二氧化锰。通过X-射线衍射(XRD)、傅里叶变换红外光谱(FTIR)、激光粒度分析仪等表征手段对所制备的产物进行分析和表征。主要考察了反应时间(t)、pH值以及反应温度(T)对产物结构和粒径的影响,从而找出液相法制备纳米MnO2的最佳反应条件。结果表明,在控制溶液pH值等于1,反应温度为60℃,反应时间为22 h的条件下,可以制得纳米级的纯四方晶系α-MnO2.更多还原

【Abstract】 Using MnSO4·H2O and K2S2O8 as reactants,MnO2 was synthesized by fluid phase method.The products were characterized by XRD,FTIR and laser size.The influence of the reaction time,pH and reaction temperature have been investigated,through it,we can find the best reaction conditions to synthesize the nano-MnO2 by fluid phase method.The results show under the condition pH=1,T=60 ℃ and t=22 h,the pure nanostructure α-MnO2 of tetragonal system can be synthesized.更多还原