氧气氧化氢氧化亚铁过程的研究——初始pH值对δ-FeOOH形成的影响  

Studies of Oxidation Process of Fe(OH)_2 with O_2——Effect of Initial pH to Synthesis of δ-FeOOH

作　　者：邢广恩[1] 高政[2] 

机构地区：[1]衡水师范专科学校化学系,河北衡水053000 [2]衡水师范专科学校教务处,河北衡水053000

出　　处：《衡水师专学报》2003年第1期36-37,共2页Journal of Hengshui Normal College

摘　　要：氧气作为氧化剂 ,直接氧化Fe(OH) 2 制备δ -FeOOH ,发现初始pH值对δ -FeOOH生成有显著影响。初始pH值越高 ,则氧化后pH值也越高 ,且Fe2 + 的转化率增大。若初始pH值在 8.7～ 9.1范围 ,生成纯相δ -FeOOH。FeOOH particles were prepared by rapid oxidation of Fe(OH) 2 particles with O 2.The study found that the initial pH can greatly affect the synthesis of δ-FeOOH.The bigger the initial pH was, the bigger the pH after oxidation was,and the taller oxidative rate of Fe 2+ was.When the initial pH ranged from 8.7 to 9.1,the pure δ-FeOOH were prepared. The product was analyzed and characterized by IR and TEM.

关 键 词：硫酸亚铁 氧气 氢氧化亚铁 δ-FeOOH 产物 表征 制备方法 Α-FE2O3 

分 类 号：O614[理学—无机化学]