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Citation: ZHENG Xiao-Hong, CHEN Li-Qin, SHEN Lin-Lin, CHEN Zhen. Preparation of Nanocrystalline α-FeOOH from Fe²⁺ Extracted from Pyrite Cinder by Reduction Roasting method[J]. Chinese Journal of Applied Chemistry, ;2003, 20(9): 871-874. shu

Preparation of Nanocrystalline α-FeOOH from Fe²⁺ Extracted from Pyrite Cinder by Reduction Roasting method

1.
College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007

Corresponding author: ZHENG Xiao-Hong,
Received Date: 18 December 2002
Available Online: 3 June 2003
Fund Project: 福建省教委资助项目(JB01097,JA02175) (JB01097,JA02175)

The Fe²⁺ was extracted from pyrite cinder by reduction roasting method and transformed into FeSO₄ as a precursor to make α-FeOOH. The crystal nucleus of α-FeOOH was prepared in a neutral solution (pH:6~7) of FeSO₄(0.15~0.25 mol/L) and Na₂CO₃(n(Na₂CO₃):n(FeSO₄)=1:1). In order to maintain a proper oxidizing rate of Fe²⁺ the pH value of the solution has been acicular in the range of 4~5 by dropping Na₂CO₃ solution. A uniform needle crystal of α-FeOOH has been obtained with width 30~40 nm and length about 250 nm.
- pyrite cinder,
- nano α-FeOOH,
- carbonate route
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Preparation of Nanocrystalline α-FeOOH from Fe2+ Extracted from Pyrite Cinder by Reduction Roasting method

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通讯作者: 陈斌, bchen63@163.com

Preparation of Nanocrystalline α-FeOOH from Fe²⁺ Extracted from Pyrite Cinder by Reduction Roasting method