20081127

47

3 61.9 135.6

g/cm3 4.27 3.90

2 72 2 52 np 2.72 2.52

7.0 7.5 5.5 6.0

1825

,

,

,

9.49

Ti atom

O atom

2.95

4.58

4.58

3.78

3.78

48

Rayleigh

Mie

Max

/2 Rayleigh

Wavelength

Particle size

Sca

tte

rin

gp

ow

er

Small Big

/2 Mie

/2

1/2

60

70

80

90

100

ce/

%

10wt%

0

10

20

30

40

50

250 350 450 550 650

W ave Length / nm

Tra

nsm

itta

nc

10 nm

15 nm

35 nm

270 nm

1000 nm

400nm

49

* (nm)

** (nm)

***

(m2/g)

200 400 550 5 15

, , ,

,

10 - 50 20 150

,

200

,

6 30 10 300

()

700 1000 700 1 5

(, )

* ** , ***BET

()

UV

700 1000 2000200 300 400 500 600 3000

nm

100nm 100nm300nm 300nm

50

10 15 nm 30 80 nm

=

180nm 1000nm700nm270nm

TEM

(Crystal):

(Aggregate):

(Agglomerate): Van Der WaalsAggregate

51

0.5 g15nm

SEM 60

SEM

21 21 30 cm =13.23

SEM

15mm

(SEM/

: 500 : 5,000

8,000 nm

: 50,000 : 150,000

:

850 nm

,

220 nm

52

()

()

/

53

3 0 0 , 0 0 0

()

: 305,400/ (2008)

: 5,276,000/ (20076)

232,569 2006)

0

5 0 , 0 0 0

1 0 0 , 0 0 0

1 5 0 , 0 0 0

2 0 0 , 0 0 0

2 5 0 , 0 0 0

,

1997

1 9 98

1 9 99

2 0 00

2 0 01

2 0 02

2 0 03

2 0 04

2 0 05

2 0 06

10

()

: 950 (2006)

: 1,450 (2006)

2,150 (2006)

: 950 (44.2%)

: 1,200 (55.8%)

0

5 0 0

1 , 0 0 0

1 , 5 0 0

2 , 0 0 0

2 , 5 0 0

3 , 0 0 0

/

2 0 0 32 0 0 42 0 0 52 0 0 62 0 0 7

20 0 8

20 0 9

20 1 0

54

55