i
DIMETHOATE
:
: 60440120
:
TS.
H
11
12
17
17
18
21
23
24
27
2.1
27
2.1u x tia X (XRD)
27
2.1
28
2.1.3.
-EDX
44
-VIS
45
46
3.2.1.
46
49
3.2.3. an
52
55
57
60
61
-
64
vi
ZnO nano
50
7.
4:
nano
53
8.
5:
55
9.
58
vii
5.
C tinh h lu sphalerit
20
6.
a ckiu wurzit
22
7.
Ci xng ca ZnO
22
8.
S nhiu x tia X qua mng tinh th
28
9.
Thit b nhiu x tia X D8-Advance- Bruker- Germany
28
10.
cu to cn t SEM)
29
11.
Thit b hin t
32
12.
T
40
20.
Gi XRD ca mu ZnO nano
43
21.
nh SEM vt liu ZnO nano
44
22.
nh SEM vt liu ZnO nano
44
viii
TT
Trang
23.
Ph SEM-EDX ca ZnO nano
45
49
28.
3.9:
50
29.
S GC-MS ca dimethoate trong mu P1 (pH = 5, t = 90
51
30.
S GC-MS ca dimethoate trong mu P2 (pH = 7, t = 90
51
31.
3.12:
a ZnO theo thi gian
53
32.
=500 ppb)
t
56
36.
3.17:
58
37.
S GC-MS ca dimethoate trong mu SDL3
59
38.
S GC-MS ca dimethoate trong mu SDL4
59
39.
S GC-MS ca dimethoate
43.
S GC-MS ca dimethoate trong mu P4 (pH = 10, t =
66
44.
S GC-MS ca dimethoate trong mu M1 (
) t
66
45.
S GC-MS ca dimethoate trong mu M1 (
67
46.
S GC-MS ca dimethoate trong mu M1(
) t
67
47.
S GC-MS ca dimethoate trong mu M3 (
S GC-MS ca dimethoate trong mu CM3
70
52.
S GC-MS ca dimethoate trong mu CM4
70 x
ABS
:
hp th quang (Absorbance)
BVTV
:
C
0
(ppb)
:
:
Hiu suy
H
XT
%
:
Hiu sut
NN & PTNT
:
SEM
:
H
(Scanning Electron Microscopy)
SEM-EDX
:
T
nh n
,
.
.
.
,
,
kali permangannat, ozon hay clo
.
2
-
3
C
1.1.
1.1.1. Khái niệm về thuốc trừ sâu
) [1], [6], [12].
4.
12.
5.
13.
6.
T
14.
7.
15.
8.
1.1.2. Phân loại thuốc trừ sâu
[1], [12].
1-
2
Binapacryl, dinobuton, dinocarrb, dinoterbon.
Cyhexatin, fenbutatin-oxide.
6
Cypermethrin, cyhalothrin, fenpropathrin, deltamethrin, fenvalerate, deces, sherpa,
sumicidine.
-, Br-, F-
3-
,
c
3].
8
2], [6
K
nhanh [6].
phun xong; c
s
-
10
b
-
6].
1.1.4. Tô
̉
ng quan vê
̀
thuô
́
c trư
̀
sâu dimethoate
ng gi: Dimethoate
c (IUPAC name): O,O-dimethyl S-methyl S-methyl-
carbamonylmethyl phosphorodithioate
-dimethyl S-[2-(methylamino)-2-
oxoethyl] ester; O,O-Dimethyl s-[2-(methylamino)-2-oxoethyl] phosphorodithioate;
Cygon; DeFend; Dimethoaat; Bi 58; O,O-Dimethyl phosphorodithioate; O,O-
Dimethyl S-(N-
c cu to:
1.2.1. Khái niệm về xúc tác quang
. Trong
-
.
.
2
[14
2
2
2
3
4], [21], [28], [29], [34], [36], [38], [39], [41].
2
2
1], [28], [31], [32], [33], [34], [35], [36].
1.2.2. Khái quát về cơ chế xúc tác quang trên chất bán dẫn
do c
13
-
-
-
+ H
+
2OH
.
+ 2h
*
*
O
2
.
+ 2H
+
2H
+
+ e
.
2
*
O
2
.
+ H
+
2
2
O
2
/Fe
2+
, O
3
/H
2
O
2
, O
3
(O
3
/UV, H
2
O
2
/UV, O
3
+ H
2
O
2
/UV, TiO
2
2
O
2
/Fe
2+
UV
H
2
O
2
+ Fe
2+
3+
+ OH
-
+
OH
*
Fe
3+
+H
2
2+
+H
+
+OH
2
O
2
+ Fe
2+
3+
OH
-
+ OH
*
(Modified Photo-Fenton)
15
STT
4
H
2
1/2O
2
+ H
2
3
+ H
2
O
2
*
+ 4O
2
Catozone Process
7
H
2
H
2
*
+ H
*
(Electrochemical
Oxidation Process)
8
H
10
H
2
photon UV
H
2
O
2
*
(
(UV/oxidation Process)
11
O
3
photon UV
O
3
+H
2
O
2
*
2
H
2
*
+ H
*
nm )
(VUV/oxidation Process)
14
photon UV
-
+ h
+
(Semiconductor)
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