| 以四氯化钛为插层剂制备插钛膨胀石墨的实验研究 |
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| 引用本文： | 庞秀言,游婷婷,苏亚娟,陈阳. 以四氯化钛为插层剂制备插钛膨胀石墨的实验研究[J]. 非金属矿, 2009, 32(5) |
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| 作者姓名： | 庞秀言 游婷婷 苏亚娟 陈阳 |
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| 作者单位： | 河北大学化学与环境科学学院,河北,保定,071002 |
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| 摘 要： | 以高锰酸钾为氧化刺,硫酸、四氯化钛作插层剂,制备了插钛膨胀石墨.分别以石墨膨胀容积和插钛膨胀石墨对酸性桃红的脱色率为优化目标,通过正交实验确定了高锰酸钾、硫酸、四氯化钛与原料石墨的最佳配比以及反应温度;对各种形式的石墨进行了XRD表征.实验确定以膨胀容积为目标制备插钛膨胀石墨的适宜反应条件为:石墨:KMnO4:H2SO4(75%):TiCl4=1:0.5:3.0:0.35,反应温度45℃,反应时间60min,膨胀石墨的膨胀容积为410mL/g;以脱色率为考察目标制备插钛膨胀石墨适宜条件为:质量比石墨:KMnO4:H2SO4(75%):TiCl4=1:0.5:4.0:0.4,反应温度为45℃,反应时间60min,浓度为100mg/L酸性桃红12h脱色率为56.5%.XRD证实了石墨层间化合物的生成,可膨胀石墨中钛以Ti(SO4)2以及锐钛型TiO2形式存在,膨胀石墨中以钛氧化物形式存在.热重-质谱联用(TG-MS)分析证实了可膨胀石墨膨胀过程中SO2的产生.
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| 关 键 词： | 膨胀石墨 层间化合物 膨胀容积 脱色率 |
Preparation of Expanded Graphite Loaded Titanium Oxide with Titanium Tetrachloride as Intercalation Reagent |
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| Pang Xiuyan,You Tingting,Su Yajuan,Chen Yang. Preparation of Expanded Graphite Loaded Titanium Oxide with Titanium Tetrachloride as Intercalation Reagent[J]. Non-metallic Mines, 2009, 32(5) |
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| Authors: | Pang Xiuyan You Tingting Su Yajuan Chen Yang |
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| Affiliation: | Pang Xiuyan You Tingting Su Yajuan Chen Yang( College of Chemistry and Environmental Science,Hebei University,Baoding,Hebei 071002) |
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| Abstract: | Expanded graphite (EG) loaded titanium oxide is prepared with potassium permanganate as oxidant, sulfuric acid and titanium tetrachloride as intercalation reagent. With expanded volume (EV), decolouring rate of acid brilliant red regarded as optimum object, the mass ratio of graphite to KMnO4, graphite to H2SO4 (75%), graphite to titanium tetrachloride and reaction temperature are gained through orthogonal experiment. Every kinds of graphite are evaluated with XRD. The following results are obtained: the fe... |
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| Keywords: | TiO2 |
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