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首页> 外文期刊>RSC Advances >Flower-like hydrogen titanate nanosheets: preparation, characterization and their photocatalytic hydrogen production performance in the presence of Pt cocatalyst
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Flower-like hydrogen titanate nanosheets: preparation, characterization and their photocatalytic hydrogen production performance in the presence of Pt cocatalyst

机译：花朵氢钛酸盐纳米液：在Pt Cocatalyst存在下制备，表征及其光催化氢气生产性能

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摘要

Flower-like hydrogen titanate nanosheets were prepared by a hydrothermal method and an assembling process. Then the Pt nanoparticles as cocatalysts were supported on the hydrogen titanate nanosheets through a photoreduction method. The samples were characterized by XRD, TG-DTA, ICP, SEM, TEM, XPS and UV-vis DRS. Their photocatalytic activity for H(2)production was also evaluated. The TEM results revealed that the as-prepared H2Ti2O5 center dot H2O was with flower-like structure in which nanosheets were interlaced together. The formation mechanism of flower-like H2Ti2O5 center dot H2O nanosheets was briefly proposed. With Pt cocatalyst, the flower-like H2Ti2O5 center dot H2O had better photocatalytic activity (hydrogen production rate: 9.28 mmol g(-1)h(-1)) and good cycling stability than original H2Ti2O5 center dot H2O and commercial P25 under the same conditions. It was also found that the amount of cocatalyst Pt was positively correlated with photocatalytic performance.
机译：通过水热法和组装工艺制备花样的氢钛酸酯纳米片。 然后通过光电控制方法将Pt纳米颗粒作为助催化剂负载在钛酸盐纳米片上。 样品的特征在于XRD，TG-DTA，ICP，SEM，TEM，XPS和UV-VIS DRS。 还评估了H（2）生产的光催化活性。 TEM结果表明，AS制备的H2TI2O5中心点H2O是用花状结构，其中纳米晶片被隔离在一起。 简要提出了花样H2TI2O5中心点H2O纳米液的形成机制。 用Pt Cocatalyst，花样H2TI2O5中心点H2O具有更好的光催化活性（氢气生产率：9.28mmol G（-1）H（-1））和良好的循环稳定性，而不是原始的H2Ti2O5中心点H2O和商业P25 状况。 还发现助催化剂Pt的量与光催化性能正相关。

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  • 来源
    《RSC Advances》 |2020年第46期|共10页
  • 作者

    Dong Feng; Zhang Guoqing; Guo Yuan; Zhu Baolin; Huang Weiping; Zhang Shoumin;

  • 作者单位

    Nankai Univ Key Lab Adv Energy Mat Chem Tianjin Key Lab Met &

    Mol Based Mat Chem Minist Educ Coll Chem Tianjin 300071 Peoples R China;

    Nankai Univ Key Lab Adv Energy Mat Chem Tianjin Key Lab Met &

    Mol Based Mat Chem Minist Educ Coll Chem Tianjin 300071 Peoples R China;

    Nankai Univ Key Lab Adv Energy Mat Chem Tianjin Key Lab Met &

    Mol Based Mat Chem Minist Educ Coll Chem Tianjin 300071 Peoples R China;

    Nankai Univ Natl Demonstrat Ctr Expt Chem Educ Coll Chem Tianjin 300071 Peoples R China;

    Nankai Univ Key Lab Adv Energy Mat Chem Tianjin Key Lab Met &

    Mol Based Mat Chem Minist Educ Coll Chem Tianjin 300071 Peoples R China;

    Nankai Univ Key Lab Adv Energy Mat Chem Tianjin Key Lab Met &

    Mol Based Mat Chem Minist Educ Coll Chem Tianjin 300071 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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