Citation: JIANG Shao-Feng, YAO Qian-Ru, GAO Bi-Fen, CHEN Yi-Lin, LIN Bi-Zhou. Preparation of Mesoporous CdS-Pillared Titanoniobate Nanohybrids and Their Photocatalytic Water-Splitting Activity for Hydrogen Generation[J]. Chinese Journal of Inorganic Chemistry, ;2015, (3): 514-520. doi: 10.11862/CJIC.2015.077 shu

Preparation of Mesoporous CdS-Pillared Titanoniobate Nanohybrids and Their Photocatalytic Water-Splitting Activity for Hydrogen Generation

1.
College of Materials Science and Engineering, Huaqiao University, Xiamen, Fujian 361021, China

Corresponding author: LIN Bi-Zhou,
Received Date: 29 September 2014
Available Online: 3 December 2014
Fund Project: 国家自然科学基金(No.50872037) (No.50872037) 福建省自然科学基金(No.2014J01187)资助项目。 (No.2014J01187)

Mesoporous CdS-pillared titanoniobate nanohybrids were successfully prepared via an exfoliation-restacking route. It was found that as-prepared CdS-TiNbO₅ nanohybrids have an interlayer spacing of 1.19 nm and high specific surface areas of about 93 m²·g^-1. The nanohybrids showed a remarkable photocatalytic hydrogen-evolution activity in water splitting. When the molar ratio of CdS and titanoniobate nanosheets was equal to 1:2, the H₂-evolution rate reached 231 and 184 μmol·h^-1·g^-1 under irradiation of 300 W Xe lamp and visible light, which is 8.6 and 9.7 times as high as the blank CdS. The improvement of photocatalytic activity is predominantly ascribed to the enlarged specific surface area and the effective spatial separation of photogenerated carriers between the host and guest.
- pillared materials;titanoniobate nanosheets;cadmium sulfide;photocatalytic hydrogen generation
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沈阳化工大学材料科学与工程学院沈阳 110142