[1]关媛,杜琼蝶,周永生,等.Co(OH)2/NiAl-LDH共修饰的α-Fe2O3光阳极增强光电化学分解水性能[J].常州大学学报(自然科学版),2023,35(05):16-25.[doi:10.3969/j.issn.2095-0411.2023.05.003]
　GUAN Yuan,DU Qiongdie,ZHOU Yongsheng,et al.Properties of photoelectrochemical decomposition of water enhanced by Co(OH)2/NiAl-LDH co-modified α-Fe2O3 photoanode[J].Journal of Changzhou University(Natural Science Edition),2023,35(05):16-25.[doi:10.3969/j.issn.2095-0411.2023.05.003]
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Co(OH)2/NiAl-LDH共修饰的α-Fe2O3光阳极增强光电化学分解水性能()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第35卷
期数:
2023年05期
页码:
16-25
栏目:
化学化工
出版日期:
2023-09-28

文章信息/Info

Title:
Properties of photoelectrochemical decomposition of water enhanced by Co(OH)2/NiAl-LDH co-modified α-Fe2O3 photoanode
文章编号:
2095-0411(2023)05-0016-10
作者:
关媛1; 杜琼蝶1; 周永生1; 顾昕懿1; 王少莽2; 李忠玉1
(1.江苏省精细石油化工重点实验室(常州大学), 江苏 常州 213164; 2.常州大学 城市建设学院, 江苏 常州 213164)
Author(s):
GUAN Yuan1;  DU Qiongdie1;  ZHOU Yongsheng1;  GU Xinyi1;  WANG Shaomang2;  LI Zhongyu1
(1.Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, Changzhou University, Changzhou 213164, China; 2.School of Urban Construction, Changzhou University, Changzhou 213164, China)
关键词:
α-Fe2O3光阳极;  NiAl-LDH;  Co(OH)2;  水分解性能;  光电催化活性
Keywords:
α-Fe2O3 photoanode;  NiAl-LDH;  Co(OH)2;  water decomposition performance;  photoelectric catalytic activity
分类号:
O 643
DOI:
10.3969/j.issn.2095-0411.2023.05.003
文献标志码:
A
摘要:
采用水热法在掺杂氟的SnO2导电玻璃(FTO)上生长α-Fe2O3光阳极薄膜,通过负载不同量的NiAl-LDH及Co(OH)2双助催化剂,对α-Fe2O3的水分解性能进行改进。通过XRD,SEM和XPS对材料的结构进行表征,结果显示,Co(OH)2/NiAl-LDH薄膜已成功制备,其在α-Fe2O3表面呈均匀分布的交联网状结构,该网状结构促进质子和反阴离子的快速转移,减少电解质溶液对α-Fe2O3的腐蚀。光电化学性能测试结果表明,在强碱性电解质溶液中,相比较于纯α-Fe2O3光阳极,[Co(OH)2]1/Ni3Al-LDH/α-Fe2O3复合材料表现出较优的光电催化活性,光电流密度提高4倍,且在光照下的稳定性良好。
Abstract:
α-Fe2O3 photoanode film was grown on SnO2 conductive glass doped with fluorine(FTO)via hydrothermal method, which was modified with different amounts of NiAl-LDH and Co(OH)2 double cocatalysts to improve water decomposition performance of α-Fe2O3 photoanode. The materials were characterized by XRD, SEM and XPS. It was confirmed that the Co(OH)2/NiAl-LDH films were successfully prepared with a uniformly distributed cross-linked network structure on the surface of α-Fe2O3 film, which facilitated the rapid transfer of protons and counter anions and reduced the influence of electrolyte solution on corrosion of α-Fe2O3. Compared to bare α-Fe2O3 photoanode, the test results of photoelectrochemical performance indicated that the [Co(OH)2]1/Ni3Al-LDH/α-Fe2O3 composite materials showed better photoelectric catalytic activity in strong alkaline electrolyte solution. The photocurrent density was increased by 4 times and the stability was good under light irradiation.

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备注/Memo

备注/Memo:
收稿日期: 2023-03-11。
基金项目: 国家自然科学基金资助项目(21876015); 江苏省自然科学基金资助项目(BK20190934)。
作者简介: 关媛(1981—), 女, 吉林辽源人, 满族, 博士, 高级实验师。通信联系人: 王少莽(1980—), E-mail: gywsm@cczu.edu.cn
更新日期/Last Update: 1900-01-01