氧化石墨烯复合TiO2-B薄膜的制备及其电致变色性能

doi:10.16085/j.issn.1000-6613.2021-1742

化工进展 ›› 2022, Vol. 41 ›› Issue (7): 3794-3800.DOI: 10.16085/j.issn.1000-6613.2021-1742

氧化石墨烯复合TiO₂-B薄膜的制备及其电致变色性能

熊剑(), 夏柳芬, 虞雷, 费安杰, 徐楚, 陈盛亚, 江国栋

湖北工业大学材料与化学工程学院，湖北武汉 430068

收稿日期:2021-08-13 修回日期:2021-10-27 出版日期:2022-07-25 发布日期:2022-07-23
通讯作者: 熊剑
作者简介:熊剑（1984—），男，副教授，硕士生导师，研究方向为二氧化钛基复合材料的功能化利用。E-mail：290811086@qq.com。
基金资助:
国家自然科学基金(51901072)

Preparation and electrochromic properties of graphene oxide and TiO₂-B composite films

XIONG Jian(), XIA Liufen, YU Lei, FEI Anjie, XU Chu, CHEN Shengya, JIANG Guodong

School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, Hubei, China

Received:2021-08-13 Revised:2021-10-27 Online:2022-07-25 Published:2022-07-23
Contact: XIONG Jian

摘要/Abstract

摘要：

目前具有一维纳米结构的TiO₂薄膜在电致变色领域应用主要受限于材料光调制幅度小、响应时间长、循环稳定性差等缺点。为了解决上述问题，本文采用沉积法将B型二氧化钛纳米管（TiO₂-B）与氧化石墨烯复合，以TiO₂粉末为原料，采用水热法得到钛酸纳米管后，利用沉积法在氟掺杂的氧化锡玻璃（FTO）基底上制备了高透明度、大光调制范围以及优良循环性能的氧化石墨烯复合B型二氧化钛纳米管电致变色薄膜（GO/TiO₂）。借助XRD、XPS、Raman、FESEM、HR-TEM等分析手段研究了氧化石墨烯用量对GO/TiO₂复合薄膜电致变色性能的影响。研究结果表明，当GO与钛酸纳米管的质量比（GO/钛酸）为7％时，GO/TiO₂复合薄膜离子扩散系数为1.46×10^-8cm²/s，着色效率值为38.1cm²/C，具有良好的电致变色性能。在-1.6V、633nm处，GO/TiO₂电致变色薄膜的光调制幅度可达77％，GO/TiO₂薄膜的着色和漂白时间分别为28.6s和4.8s，100次循环后的光调制幅度保持率为96.1％。

关键词: TiO₂-B, 水热, 纳米结构, 复合材料, 氧化石墨烯, 电致变色

Abstract:

At present, TiO₂ thin films with one-dimensional nanostructures are mainly limited in the field of electrochromic materials such as small light modulation amplitude, long response time and poor cycle stability. To solve the above problems, B-type titanium dioxide nanotubes (TiO₂-B) were compounded with graphene oxide by deposition method, and titanate nanotubes were obtained by hydrothermal method with TiO₂ powder as raw material. Then, the graphene oxide composite B-type titanium dioxide nanotube electrochromic film (GO/TiO₂) with high transparency, large light modulation range and excellent cycle performance was prepared on fluorine-doped tin oxide glass (FTO) substrate by deposition method. XRD, XPS, Raman, FESEM and HR-TEM were used to study the effect of graphene oxide content on the electrochromic properties of GO/TiO₂ composite films. The results showed that when the mass ratio of GO to titanate nanotubes was 7%, the ion diffusion coefficient of GO/ TiO₂composite film was 1.46×10^-8cm²/s and the coloring efficiency was 38.1cm²/C, indicating good electrochromic properties. At -1.6V and 633nm, the light modulation amplitude of GO/TiO₂ electrochromic film can reach 77%, the coloring and bleaching time of GO/TiO₂ film were 28.6s and 4.8s, respectively, and the light modulation amplitude retention rate after 100 cycles was 96.1%.

Key words: TiO₂-B, hydrothermal, nanostructure, composites, graphene oxide, electrochromic

中图分类号:

TQ15

熊剑, 夏柳芬, 虞雷, 费安杰, 徐楚, 陈盛亚, 江国栋. 氧化石墨烯复合TiO₂-B薄膜的制备及其电致变色性能[J]. 化工进展, 2022, 41(7): 3794-3800.

XIONG Jian, XIA Liufen, YU Lei, FEI Anjie, XU Chu, CHEN Shengya, JIANG Guodong. Preparation and electrochromic properties of graphene oxide and TiO₂-B composite films[J]. Chemical Industry and Engineering Progress, 2022, 41(7): 3794-3800.

图/表 6

表1 GO/TiO2复合材料的配比

组别	GO/μL	（GO/钛酸）/%	备注
1	0	0	GO₀/TiO₂
2	30	3.5	GO₃₀/TiO₂
3	60	7	GO₆₀/TiO₂
4	120	14	GO₁₂₀/TiO₂

图1 GO n /TiO2光谱图

图2 GO60/TiO2薄膜结构

图3 GO n /TiO2 薄膜的电化学性能

图4 GO n /TiO2薄膜的电致变色性能

图5 GO n /TiO2薄膜的着色/漂白循环曲线图

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氧化石墨烯复合TiO₂-B薄膜的制备及其电致变色性能

Preparation and electrochromic properties of graphene oxide and TiO₂-B composite films

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