| 均相水解法制备金红石含量可控的纳米TiO2 |
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| 引用本文： | 刘威,陈爱平,林嘉平,戴智明,邱炜,刘伟,朱孟钦,臼田昭司.均相水解法制备金红石含量可控的纳米TiO2[J].化学学报,2004,62(12):1148-1152,MJ04. |
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| 作者姓名： | 刘威 陈爱平 林嘉平 戴智明 邱炜 刘伟 朱孟钦 臼田昭司 |
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| 作者单位： | 1. 华东理工大学材料科学与工程学院,超细材料制备与应用教育部重点实验室,上海,200237
2. 大阪府立工业高等专门学校,系统与控制工程学院,大阪572-8572,日本 |
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| 基金项目： | 上海市重点学科建设项目、国家自然科学基金重点(No. 20236020)资助项目. |
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| 摘 要： | 用均相水解法通过调节对甲苯磺酸的添加量制备了金红石含量线性可控的纳米TiO2粒子，相同条件下，没有加入对甲苯磺酸时，制备的TiO02颗粒为纯锐钛矿晶型．制备的纳米TiO2颗粒，其单晶尺寸为19．5mm(金红石)，13．5mm(锐钛矿)，比表面积72．7m^2／g，通过公式计算得到了制备的TiO2纳米颗粒带隙能为2．83eV，比P25和纯锐钛矿纳米TiO2颗粒的带隙能均低．
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| 关 键 词： | 金红石含量可控 纳米二氧化钛 均相水解法 制备 对甲苯磺酸 光催化剂 |
Preparation of Nano-scale TiO2 with Controllable Rutile Content by Homogeneous Hydrolysis |
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| LIU,Wei a CHEN,Ai-Ping,a LIN,Jia-Ping a DAI,Zhi-Ming a QIU,Wei a LIU,Wei a ZHU,Meng-Qin a USUDA,Shouji b.Preparation of Nano-scale TiO2 with Controllable Rutile Content by Homogeneous Hydrolysis[J].Acta Chimica Sinica,2004,62(12):1148-1152,MJ04. |
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| Authors: | LIU Wei a CHEN Ai-Ping a LIN Jia-Ping a DAI Zhi-Ming a QIU Wei a LIU Wei a ZHU Meng-Qin a USUDA Shouji b |
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| Abstract: | The homogeneous hydrolysis method was proposed to synthesize nanoscale TiO 2 mixed crystal. It is remarkable that the content of rutile crystal phase in TiO 2 mixed crystal was controllable by the addition of toluene-p-sulfonic acid. The relationship between toluene-p-sulfonic acid and rutile phase of TiO 2 was presented. TiO 2 was pure anatase crystallite without the addition of toluene-p-sulfonic acid. The sample with 0 2 addition ratio of toluene-p-sulfonic acid was studied. The properties of a TiO 2 sample prepared are that the size of nano-crystallite was 19 5 nm for rutile, and 13 5 nm for anatase, the specific surface area was 72 7 m 2/g, and the energy of band gap was 2 83 eV. |
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| Keywords: | homogeneous hydrolysis controllable rutile content nano-crystallite TiO 2 |
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