| 利用控制结晶技术合成单分散硫酸钡微粒 |
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| 引用本文： | 张明,张宝.利用控制结晶技术合成单分散硫酸钡微粒[J].广东化工,2012,39(6):340-341,343. |
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| 作者姓名： | 张明 张宝 |
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| 作者单位： | 1. 肇庆学院化学化工学院,广东肇庆526061 中南大学化学化工学院,湖南长沙410083
2. 中南大学冶金科学与工程学院,湖南长沙,410083 |
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| 基金项目： | 国家自然科学基金项目，中南大学博士后基金，肇庆学院科研基金项目 |
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| 摘 要： | 采用控制结晶法制备硫酸钡颗粒,通过XRD、SEM以及傅里叶红外光谱（FTIR）对制备的粉体进行分析表征,并研究反应温度、反应物浓度以及PEG的用量等反应条件对硫酸钡颗粒形貌的影响。结果表明：反应温度、反应物浓度以及PEG的用量对硫酸钡颗粒形貌有显著的影响。在Na2SO4浓度为0.75 mol.L-1,30℃等反应条件下可以获得D50=248 nm的硫酸钡颗粒;当Na2SO4浓度为0.25 mol.L-1,PEG用量为0.08 g.mL-1等反应条件时可以获得D50=3.5μm的硫酸钡颗粒。
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| 关 键 词： | 硫酸钡 络合沉淀 控制结晶 |
Facile Synthesis of Monodispersed Barium Sulphate Particles via Controlled Crystallization Method |
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| Zhang Ming,Zhang Bao.Facile Synthesis of Monodispersed Barium Sulphate Particles via Controlled Crystallization Method[J].Guangdong Chemical Industry,2012,39(6):340-341,343. |
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| Authors: | Zhang Ming Zhang Bao |
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| Affiliation: | 1.College of Chemistry and Chemical Engineering,ZhaoQing University,Zhaoqing 526061; 2.School of Chemistry and Chemical Engineering,Central South University,Changsha 410083; 3.School of Metallurgical Science and Engineering,Central South University,Changsha 410083,China) |
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| Abstract: | Barium sulfate particles were synthesized via a controlled crystallization method.XRD,SEM and FTIR were used to characterize the structure and morphology of BaSO4 particles.The effects of the preparation parameters,such as the concentration of raw materials,reaction temperature,amount of PEG,on the particles size distribution and morphology were investigated.The results showed that the size and morphology of BaSO4 particles were remarkably affected by the above factors.Barium sulfate particles with D50=248 nm were synthesized under the condition: the concentration of Na2SO4 was 0.75 mol·L-1,30 ℃;particles with D50=3.5 μm were synthesized under the condition: the concentration of Na2SO4 was 0.25 mol·L-1,PEG= 0.08 g·mL-1. |
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| Keywords: | barium sulfate complexation reaction controlled crystallization method |
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