化工新型材料

化工新型材料 ›› 2025, Vol. 53 ›› Issue (10) : 191-195. DOI: 10.19817/j.cnki.issn1006-3536.2025.10.002

科学研究

Ti掺杂改性α-Fe₂O₃光阳极的制备及其光电催化水分解制氢性能研究

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Synthesis of Ti-doped α-Fe₂O₃ photoanodes and their application on hydrogen production via photoelectrochemical water splitting

Zeng Xiangpeng, Zhu Wantong, Hou Ying, Wang Siyan, Xia Chengkai, Xu Hongyan

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文章历史 +

Received
2024-09-10
Issue Date	Revised Date
2025-10-13	2024-09-10

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摘要

采用浸渍-热分解工艺,在氟掺杂氧化锡玻璃表面制备了钛掺杂改性赤铁矿(Ti∶α-Fe₂O₃)光阳极,并通过一系列表征测试手段对Ti∶α-Fe₂O₃光阳极的物相性质和光电催化水分解性能进行了研究。结果表明:Ti掺杂处理为光阳极材料提供了更多的电化学反应活性位点,增大了其电化学活性表面积,提高了光阳极的载流子浓度,同时降低了电子转移电阻;与原始赤铁矿(α-Fe₂O₃)光阳极相比,Ti∶α-Fe₂O₃光阳极的光电催化水分解性能显著提高,产氢速率达到0.86μmol/h,在1.23V(vs.RHE,RHE为可逆氢电极)条件下光电流密度高达1.08mA/cm²,约为α-Fe₂O₃光阳极的2倍。

Abstract

Titanium-doped modified hematite (Ti∶α-Fe₂O₃) photoanodes were prepared on the surface of fluorine-doped tin oxide glass by an impregnation-thermal decomposition process,and the physical properties and photoelectrocatalytic water decomposition performance of Ti∶α-Fe₂O₃ photoanodes were investigated by a series of characterization tests.The results showed that the Ti doping treatment provided more electrochemically reactive active sites for the photoanode material,increased its electrochemically active surface area,improved the carrier concentration of the photoanode,and simultaneously reduced the electron transfer resistance.The photoelectrocatalytic water decomposition performance of the Ti∶α-Fe₂O₃ photoanode was significantly improved compared with the pristine hematite (α-Fe₂O₃) photoanode,and the rate of hydrogen production reached 0.86μmol/h,and the photocurrent density was as high as 1.08mA/cm² at 1.23V(vs.RHE) (reversible hydrogen electrode),which was about twice that of the α-Fe₂O₃ photoanode.

关键词

Ti∶α-Fe₂O₃ / 光电化学 / 水分解 / 制氢

Key words

Ti∶α-Fe₂O₃ / photoelectrochemistry / water splitting / hydrogen production

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Ti掺杂改性α-Fe₂O₃光阳极的制备及其光电催化水分解制氢性能研究[J]. 化工新型材料, 2025, 53(10): 191-195 DOI:10.19817/j.cnki.issn1006-3536.2025.10.002

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参考文献

原文顺序 | 出版日期 | 本文引用

[1] Fujishima A,Honda K.Electrochemical photolysis of water at a semiconductor electrode[J].Nature,1972,238:37-38.
[2] Walter M G,Warren E L,Mckone J R,et al.Solar water splitting cells[J].Chem Rev,2010,110(11):6446-6473.
[3] Hu S,Shaner M R,Beardslee J A,et al.Amorphous TiO₂ coatings stabilize Si,GaAs,and GaP photoanodes for efficient water oxidation[J].Science,2014,344(6187):1005-1009.
[4] Hou Y,Zuo F,Dagg A P,et al.Branched WO₃ nanosheet array with layered C₃N₄ heterojunctions and CoO_x nanoparticles as a flexible photoanode for efficient photoelectrochemical water oxidation[J].Adv Mater,2014,26(29):5043-5049.
[5] Wang G,Wang H,Ling Y,et al.Hydrogen-treated TiO₂ nanowire arrays for photoelectrochemical water splitting[J].Nano Lett,2011,11(7):3026-3033.
[6] Li C,Wang T,Luo Z,et al.Transparent ALD-grown Ta₂O₅ protective layer for highly stable ZnO photoelectrode in solar water splitting[J].Chem Commun,2015,51(34):7290-7293.
[7] Mishra M,Chun D M.α-Fe₂O₃ as a photocatalytic material:a review[J].Applied Catalysis A:General,2015,498:126-141.
[8] Dias P,Vilanova A,Lopes T,et al.Extremely stable bare hematite photoanode for solar water splitting[J].Nano Energy,2016,23:70-79.
[9] 冯晨晨,张亚军,毕迎普.α-Fe₂O₃光阳极光电化学分解水的研究进展与挑战[J].分子催化,2020,34(3):227-241.
[10] 刘亚子,李新勇,孙成,等.纳米复合ZnO-TiO₂晶体的制备及其光电催化性能研究[J].环境工程学报,2005,6(4):36-39.
[11] 田宇,李莉,辛籽潺,等.花球状异质结构复合材料ZnS/ZnO/ZnWO₄多模式光降解与光解水制氢[J].无机化学学报,2019,35(3):493-504.
[12] 梅长松,钟顺和.复合半导体负载金属材料光催化性能研究[J].无机化学学报,2005,21(12):1810-1814.
[13] Zhong R Y,Zhang Z S,Yi H Q,et al.Covalently bonded 2D/2D O-g-C₃N₄/TiO₂ heterojunction for enhanced visible-light photocatalytic hydrogen evolution[J].Applied Catalysis B:Environmental,2018,237:1130-1138.
[14] 孙文,杨珂.TiO₂光催化剂改性研究进展[J].材料化学前沿,2020,8(4):76-80.
[15] Zhao Wei,Li Jing,She Tiantian,et al.Study on the photocatalysis mechanism of the Z-scheme cobalt oxide nanocubes/carbon nitride nanosheets heterojunction photocatalyst with high photocatalytic performances[J].Journal of Hazardous Materials,2021,402:201-212.