Research Article

One-Step Cohydrothermal Synthesis of Nitrogen-Doped Titanium Oxide Nanotubes with Enhanced Visible Light Photocatalytic Activity

Table 2

XPS of TC-series.

SampleNitrogen content
(%)a
N 1s
(eV)
O 1s
(eV)
Ti 2p3/2
(eV)

TC-00.50398.0528.0457.0
TC-12.69400.6530.3458.8
TC-1(400)2.46399.9531.1459.8

aNitrogen doping percentage calculated according to the curve fitting of the XPS micrographs for the N 1s region.