化工新型材料

化工新型材料 ›› 2022, Vol. 50 ›› Issue (1) : 142-146. DOI: 10.19817/j.cnki.issn1006-3536.2022.01.029

新材料与新技术

微乳液水热法低温制备TiO₂纳米棒阵列及光电化学性能研究

^1,2*

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Preparation of TiO₂ nanorod arrays by microemulsion hydrothermal method at low temperature and its photochemical property

Zhang Wenkai¹, Liu Liu², Liang Guijie³, Xu Ke³, Wang Jingyang^1,2

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Received		Published
2021-07-16		2022-01-20
Issue Date	Revised Date
2022-02-08	2021-07-16

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摘要

利用微乳液水热法降低反应能,在透明导电玻璃衬底上低温合成出金红石相TiO₂纳米棒阵列。利用X射线衍射、扫描电镜、紫外-可见光、阻抗谱等手段对样品进行结构形貌表征和光电化学性能测试。结果表明:微乳液体系的加入可有效地降低体系表面能,诱发前驱物发生水解缩聚反应,促进TiO₂晶粒在溶液-液相-固相三相界面成核和生长,实现低温80℃直接在基底表面生长TiO₂纳米棒阵列。同等条件下相比常规水热法,该方法制备TiO₂纳米棒阵列相比于传统水热法在同一反应温度下具有更低的反应能且阵列形貌更优,显示出良好的应用前景。

Abstract

One-dimensional TiO₂ nanorod arrays were prepared by microemulsion hydrothermal method on transparent conductive glass substrate at low temperature.The samples were characterized by XRD,SEM,UV-Vis,and EIS.The results shown that the addition of microemulsion system can effectively reduce the surface energy of the system,induced the precursor hydrolytic polycondensation reaction,promoted the nucleation and growth of TiO₂ grains at the three-phase interface of solution-liquid-solid phase,and realized the direct growth of TiO₂ nanorods on the substrate surface at 80℃.Under the same conditions,compared with the conventional hydrothermal method,the TiO₂ nanorod arrays prepared by this method had higher growth efficiency and better photochemical properties,showing a good application prospect.

关键词

二氧化钛纳米棒阵列 / 微乳液水热法 / 结构形貌 / 光电化学性能

Key words

TiO₂ nanorod array / microemulsion hydrothermal method / structure and morphology / photoelectrochemical property

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微乳液水热法低温制备TiO₂纳米棒阵列及光电化学性能研究[J]. 化工新型材料, 2022, 50(1): 142-146 DOI:10.19817/j.cnki.issn1006-3536.2022.01.029

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