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| Application of Surfactants in Synthesis of Ultrafine Lead Oxide Powder |
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Received:October 28, 2013
Revised:October 30, 2013
Accepted:October 31, 2013
Published Online:April 22, 2014
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| DOI：10.3969/j.issn.1007-7545.2014.05.016 |
| KeyWord:surfactants; chemical precipitation; lead oxalate; lead oxide |
| Author | Institution |
| Guo guanghui |
武汉科技大学湖北省煤转化与新型炭材料重点实验室 |
| Liu fangfang |
武汉科技大学湖北省煤转化与新型炭材料重点实验室 |
| Cao xin |
武汉科技大学湖北省煤转化与新型炭材料重点实验室 |
| Chen shan |
武汉科技大学湖北省煤转化与新型炭材料重点实验室 |
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| Abstract: |
| Lead oxalate was synthesized by chemical precipitation with sodium oxalate and lead nitrate as raw materials, polyethylene glycol 400 (PEG400), polyethylene glycol 1000 (PEG1000) and polyethylene glycol 2000 (PEG2000) as surfactants. Synthesized lead oxalate was converted into superfine lead oxide by thermal decomposition at 320 ℃. Lead oxalate and the lead oxide were characterized by XRD and SEM. The results show that prepared from reaction, lead oxalate has high purity, mainly containing α-PbO and a small amount of β-PbO. The morphology of lead oxide changes from an irregular shape to rod-like with an increase of PEG molecular weight. With an increase of reaction temperature, particle size of lead oxide tends to decrease, but agglomeration is more likely to occur |
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