Photocatalytic reforming of formic acid with simultaneous hydrogen production under visible light over CdS sensitized Na_2Ti_2O_4(OH)_2

摘要

The present work reports the renewable hydrogen production by an anaerobic photocatalytic reforming of formic acid over CdS sensitized Na_2Ti_2O_4(C)H)_2 nanotubes. the Na_2Ti_2O_4(OH)_2 nanotube was prepared and charactered by X-ray diffraction, UV-visible absorption, transmission electron microscopy, etc. The activity of the catalyst in formic acid was investigated. The greatest photocatalytic reforming activity of formic acid occurs as the formic acid initial concentration is 20 v.%. A probable mechanism for the photocatalytic reforming process was proposed and discussed.