Recycling of copper-adsorbed titanate nanotubes (TNTs) for photocatalytic hydrogen production Article uri icon

abstract

  • Titanate nanotubes (TNTs) were prepared by the hydrothermal method and rinsed at different pH values (2, 5, 8, 11 and 14). The material TNT-11 reached the best copper removal (98.1 mg·g−1) with a TNT dosage of 200 mg·L−1, [Cu(II)] of 20 mg·L−1 and pH 7. This material presented H2Ti3O7 and Na2Ti3O7 as crystalline phases, a surface area of 250 m2·g−1, and 13 wt.%25 of sodium content. The adsorbed TNT-11%40Cu material was reutilized in the water splitting reaction with hydrogen production of 2139 µmolH2·g−1 after 5 h. It was found that the outstanding behavior stemmed from the formation of Cu2O. © 2020, © 2020 Taylor %26 Francis.
  • Titanate nanotubes (TNTs) were prepared by the hydrothermal method and rinsed at different pH values (2, 5, 8, 11 and 14). The material TNT-11 reached the best copper removal (98.1 mg·g−1) with a TNT dosage of 200 mg·L−1, [Cu(II)] of 20 mg·L−1 and pH 7. This material presented H2Ti3O7 and Na2Ti3O7 as crystalline phases, a surface area of 250 m2·g−1, and 13 wt.%25 of sodium content. The adsorbed TNT-11@Cu material was reutilized in the water splitting reaction with hydrogen production of 2139 µmolH2·g−1 after 5 h. It was found that the outstanding behavior stemmed from the formation of Cu2O. © 2020, © 2020 Taylor %26 Francis.

publication date

  • 2020-01-01