LaNiO3/TiO2纳米管阵列的电化学制备及其光催化性能

doi:10.13208/j.electrochem.181213

电化学（中英文） ›› 2019, Vol. 25 ›› Issue (6): 682-689. doi: 10.13208/j.electrochem.181213

LaNiO₃/TiO₂纳米管阵列的电化学制备及其光催化性能

弓程^1,2,3，张泽阳¹，向思弯^1,2,3，孙岚^1,2,3*，叶陈清³，林昌健¹

1. 厦门大学化学化工学院，福建厦门 361005；2. 厦门大学深圳研究院，深圳518000；3. 宁德市师范学院，特色生物化工材料福建省重点实验室，福建宁德 352100

收稿日期:2018-12-12 修回日期:2019-01-08 出版日期:2019-12-28 发布日期:2019-12-28
通讯作者: 孙岚 E-mail:sunlan@xmu.edu.cn
基金资助:
国家自然科学基金(No. 21621091)和广东省自然科学基金（No. 2016A030313845）资助

Electrochemical Preparation and Photocatalytic Performance of LaNiO₃/TiO₂Nanotube Arrays

GONG Cheng^1,2,3, ZHANG Ze-yang¹, XIANG Si-wan^1,2,3, SUN Lan^1,2,3*,YE Chen-qing³, LIN Chang-jian¹

1. State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian Province, China; 2. Shenzhen Research Institute of Xiamen University, Shenzhen 518000, China; 3. Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde 352100, Fujian Province, China

Received:2018-12-12 Revised:2019-01-08 Published:2019-12-28 Online:2019-12-28
Contact: SUN Lang E-mail:sunlan@xmu.edu.cn

摘要/Abstract

摘要： 利用脉冲电沉积与高温退火相结合的方法制备了镍酸镧(LaNiO₃)纳米颗粒负载的二氧化钛(TiO₂)纳米管阵列. 修饰于TiO₂纳米管阵列上的LaNiO₃纳米颗粒粒径小（< 10 nm）、分布均匀、负载量可控，一些LaNiO₃纳米颗粒沉积于TiO₂纳米管内. 紫外可见吸收光谱显示，LaNiO₃/TiO₂纳米管阵列的吸收带边较TiO₂纳米管阵列明显红移，可见光吸收明显增强. 可见光下光催化降解罗丹明B（RhB）的结果表明，脉冲循环沉积500次制得的LaNiO₃/TiO₂纳米管阵列的光催化活性最佳，其对RhB光催化降解速率是TiO₂纳米管阵列的3.5倍，并且表现出极好的光催化稳定性.

关键词: LaNiO₃纳米颗粒, TiO₂纳米管阵列, 可见光光催化, 罗丹明B

Abstract: The LaNiO₃/TiO₂ nanotube arrays were prepared by pulse electrodeposition combined with high temperature annealing. The LaNiO₃ nanoparticles modified on the TiO₂ nanotube arrays had small particle size (< 10 nm), uniform distribution and controllable loading. Some LaNiO3 nanoparticles were deposited inside the TiO₂ nanotubes. The UV-visible absorption spectra displayed that the absorption band edge of LaNiO₃/TiO₂nanotube arrays was obviously red-shifted as compared with that of TiO₂ nanotube arrays, and the visible light absorption was enhanced significantly. The photocatalytic degradation results of rhodamine B (RhB) under visible light showed that the LaNiO₃/TiO₂nanotube arrays prepared by pulse electrodeposition for 500 cycles had the optimum photocatalytic activity, and the photocatalytic degradation rate of RhB was 3.5 times that of TiO₂ nanotube arrays. Furthermore, the LaNiO₃/TiO₂nanotube arrays presented the excellent photocatalytic stability.

Key words: LaNiO₃ nanoparticles, TiO₂ nanotube arrays, visible-light-induced photocatalysis, rhodamine B

中图分类号:

O646
O644

弓程, 张泽阳, 向思弯, 孙岚, 叶陈清, 林昌健. LaNiO₃/TiO₂纳米管阵列的电化学制备及其光催化性能[J]. 电化学（中英文）, 2019, 25(6): 682-689.

GONG Cheng, ZHANG Ze-yang, XIANG Si-wan, SUN Lan, YE Chen-qing, LIN Chang-jian. Electrochemical Preparation and Photocatalytic Performance of LaNiO₃/TiO₂Nanotube Arrays[J]. Journal of Electrochemistry, 2019, 25(6): 682-689.

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https://electrochem.xmu.edu.cn/CN/Y2019/V25/I6/682

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LaNiO₃/TiO₂纳米管阵列的电化学制备及其光催化性能

Electrochemical Preparation and Photocatalytic Performance of LaNiO₃/TiO₂Nanotube Arrays

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