Surface Modification of Hollow Structure TiO2 Nanospheres for Enhanced Photocatalytic Hydrogen Evolution

被引：3

作者：

Ning, Gaomin ^{[1
]}

Zhang, Yan ^{[2
]}

Shi, Chunjing ^{[3
,4
]}

Zhao, Chen ^{[3
,4
]}

Liu, Mengmeng ^{[2
]}

Chang, Fangfang ^{[3
,4
]}

Gao, Wenlong ^{[1
]}

Ye, Sheng ^{[2
]}

Liu, Jian ^{[3
,4
,5
,6
,7
]}

Zhang, Jing ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch New Energy, Fuxing Rd 8, Jiangyin 214000, Peoples R China

[2] Anhui Agr Univ, Coll Sci & Sch Plant Protect, Hefei 230036, Peoples R China

[3] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China

[4] Dalian Natl Lab Clean Energy, 457 Zhongshan Rd, Dalian 116023, Peoples R China

[5] Inner Mongolia Univ Inner Mongolia, Coll Chem & Chem Engn, Hohhot 010021, Peoples R China

[6] Univ Surrey, DICP Surrey Joint Ctr Future Mat, Dept Chem & Proc Engn, Guildford GU2 7XH, Surrey, England

[7] Univ Surrey, Adv Technol Inst, Guildford GU2 7XH, Surrey, England

来源：

NANOMATERIALS | 2023年 / 13卷 / 05期

基金：

中国国家自然科学基金;

关键词：

surface modification; hollow structure; charge separation; photocatalysis; H-2; evolution; IN-SITU SYNTHESIS; DOPED TIO2; H-2; WATER; COMPOSITE; NANORODS;

D O I：

10.3390/nano13050926

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Engineering the surface structure of semiconductor is one of the most promising strategies for improving the separation and transfer efficiency of charge, which is a key issue in photocatalysis. Here, we designed and fabricated the C decorated hollow TiO2 photocatalysts (C-TiO2), in which 3-aminophenol-formaldehyde resin (APF) spheres were used as template and carbon precursor. It was determined that the C content can be easily controlled by calcinating the APF spheres with different time. Moreover, the synergetic effort between the optimal C content and the formed Ti-O-C bonds in C-TiO2 were determined to increase the light absorption and greatly promote the separation and transfer of charge in the photocatalytic reaction, which is verified from UV-vis, PL, photocurrent, and EIS characterizations. Remarkably, the activity of the C-TiO2 is 5.5-fold higher than that of TiO2 in H-2 evolution. A feasible strategy for rational design and construction of surface-engineered hollow photocatalysts to improve the photocatalytic performance was provided in this study.

引用

页数：13

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