Typical Synthesis and Environmental Application of Novel Ti Nanoparticles - Advanced Materials for Agriculture, Food and Environmental Safety - page 433

Sample
(Cr x Nb x Ti 1-2x O 2-x/2 )

Acronym Reaction Rate

Constant
k (×10 -3 min -1 )

S BET (m 2 /g) Crystallites

size (nm)

Band gap
Energy (eV)

RhB
decolorization,
t 1/2 (min)

Time required
for degradation
of RhB(min)

180
210
330
720
270
-
540
Reaction rate constants were measured at er 50% decolorization of RhB solution; BET surface area measured by liquid nitrogen adsorption-desorption isotherm at
room temperature.

x = 0.01
x = 0.05
x = 0.1
x = 0.5
Nb-TiO 2
Cr-TiO 2
TiO 2

CNT1
CNT2
CNT3
CNT4
NT
CT
-

27.31
23.07
17.08
9.48
18.74
6.37
11.68

162.24
125.32
59.11
45.73
52.69
32.33
49

13.70
13.98
14.08
14.17
12.14
12.39
12.42

1.85
1.85
1.85
-
2.2
-
3.2

25.37
30.03
40.57
71.30
36.97
108.79
59.33