2021930

.T0 SHQ
92-EPOIM6$/  
A:()NB=?@%&4()5;><?@C*%S 3LHQ!1TM7& ,MD8U()+W" ' VM#LGK FRJ

1

_a\Y]6f`dZbgK"G9`dZb:-

5X[^Wc]'\d[(K

@VJO?

9`dZb&:3%`dZb

,01f_a\Y],
α-Fe2O3gU
GCS,)/ 06$J*.ATE<S,)/ 0L8  JQSNKF;R8e!JQS)+K f!$><ge)+K+>4B<e,)K7P=A(g> FI<IHK 5 >;R8QRTD,)/ 06K2#>MTE<S2903(8='#?A89@$

9> Biogenous iron oxide (BIOX)
BIOX"&BIOXPVFT

800 ºC -SEM7  +,!

SEM7@ 

BIOX@0
Leptothrix ochracea - BIOX

SEM
1 µm;%1

1 µm<DRUMCG6<ISWN%OQHEJKL.
<.X) 3 nm : <21X 30 nm<.X)~40 nm< SiO2/FTG*?OQHE
J.B45

38CBIOXmNXkYCBIOXmH"
8CBIOXYCBIOX

0p4g0l;#irTSEKf<;irST~Biogenous Iron oxides “BIOX” TSEKV,OUMS1m^Y_lqrBIOXmL

OUMS1
1 µm

20ºC2QU&keY]\Zµm

R>@%5L-BIOX Leptothrix ochracea SEM

Fe:Si:P =0.75:0.20:0.05.H"+(khj3=SGP[TA10 µm

bOUMS1-BIOXm9!c|:vz}x:| E-P1/B
3 nm|F$ FeSiP =80910|G*-Pty{wsuX7M12| DF$m'IfW| F$| .H"m'fW`JOmnWhd | ?

SEM

1 µm

fH a .H"mDm6oHa ).Hm4

BIOX!0:;98 –,.4 /-OUMS10 !0STEM

"#!

= +3 , -54) :;981 *&+3-54 /24!0' !/(067<,→ BIOX!0"$200 nm!

500 nmSTEP 1"%

! 500 nm

STEP 2BIOX!

5OUMS1*V0'BIOXV8&= IUXY8&

[2]

[1]
OUMS1
OUMS1Fe
15Si

Fe "
17 "

G
0Si '
0 'GSiWPV 'AZ<.

;0T 6

#E8&0 (SiNa2SiO3

F%M9M

N,#EOAlAlCl3HM9

 (GAl+S

AlCl3
ZnSO4HZr

ZrCl4HM9Ru

RuCl39

Ti

TiCl39KJ15 I

La

LaCl3HCe

CeCl3HOUMS11517 IFeAl

0 'OUMS115RuAl"

O

N,#E

'7

G

Al, Zr, Ru, Ti-V '6:&[ SEM: )[ SEM-EDX: 02$[ TEM: )M1!/
[ ICP: 0@A$[ XRD: 3

L 15 "ZDRY0Z 'QS?BG8&VC+
L '0V>U4PY
6

AlBIOX6"5-/;
"6 3
'BIOXAl4048700ºC

3530

900ºC
1000ºC

800ºC
900ºC

500ºC

$>@=?
MC-55BIOX
800ºC

1000ºCL* AB40b* A) B

1100ºC

252530a* (% B35800ºC
MC-55600ºC

44BIOX800℃

4220204640

1100ºC
500ºC40 !E Konica Minolta MC-2600d, E D65

5:; #6 'BIOX-AlD0BIOX
500

600

700 800 900 1000 1100 MC-55
(ºC)$>@=?

* AlA40%B 'BIOX>@=?7C $>@=?<&,;(9.4% #* BIOX581 +20+%
7*EAI5

W %H+/?PD8OUVSRT6H:=O 5X
8 7&GFYQ7!#I4 02X
BIOXY<@O>EJN;HGCD8B<7BIOXIH=B 1!"*I3$<LNP
D8B
W KB7).I?NGO(H9D7'I
<GO-5EGCD8BM,8ahle]lgjcl\5WYBIOX34'[#B(ahle]lgjcl[ 58)3d
OUMS1?[ L
S pHTJ.mJ;→[J.nT:K
S 9I<[&7fdahle]lgjcl

2d
OUMS1?[L

10mM FG>A+9J.[,24h=0&$1\@6%Z(*24h24h

10mM Na2CO3\,mpHD)9<mIn[,UC V
k L+Ho1500 mL(250 ml x 6b`link oSGP (J./X)
k -o20 ºCk Eo80 rpmk _^l)Ho0.2 L/min

ROQPPP
M!2 "N9,8&BIOXPEO37"K8LK+H(%K/'

6pH
#I6

pH1NBI66pH
T5612 G
pH4UIpHb)(%K/T9FeSO4

2.7

SQR&8V6 7.+ (I)

FeCl2

2.8

SQR&8V6 7.+ (I)

Fe2(SO4)32.2

SQR&8V6 7.+ (I)

FeCl3

2.5

SQR&8V6 7.+ (I)Iron(II) Na citric acidn-hydrate

6.8

SQR&8 (II)7"%a)SEMc)U2 µm

II2 µmIron(II) Na fulvic
acid n-hydrate

6.6SQR&8 (II)

FeCO3

7.0

SQR&8V6 7.+ (I)

FeSO4

3.4

SQR&8 (II)

FeCl2

3.5

SQR&8 (II)

Fe2(SO4)33.2

,-&8 (III)

FeCl3

3.3

,8TSQR&8P MUV6 7.+(III’)

III

2 µm

III’

a. 0$10 mMP!Vb. 7"!KpHVc. SEM*JW@ pHP6T?>=;<:J4A7"HDFFe2(SO4)3K)C,8J

2 µm

10Mo/InBIOXbB? - -Ab8_ 9-@`?C6b!5

VXUWQ<bLb&#Mo22/In16-800

SEM

10 µm

500 nmOUMS1<b L
3J
OUMS1<bL2J
10mM FG;>*s
6.7mM Fe2(SO4)3g+

I,+RSJb&#

24J
10mM Na2CO3g+

10mM Na2MoO4s
5mM In(NO3)3g+
24J'%/g=4&^()

:.

H +RSJb&#

EDX imhkpn (at.%)Mo(22)
P(4)
Si(6)

0.90

1.80

Fe(52)

In(16)

2.70

3.60

keV

4.50

5.40

6.30

Z 7`6adeM 1^joql0b"Cg23r 1 SNYPTONNZ Db6[E^\f]c 23@$b[ Z Mo/In BIOXK3/bB?

7.20

8.10

L*^11Mo/InBIOX43(

XRDD<MKSTEM-EDSH=EK;Intensity (a.u.)

Mo22/In16-800

Fe,200nm,,,,**,***10HAADF+ α-Fe2O3* In2(MoO4)3,20**,***

3040*50◯In,

6070Fe+In,80

2θ (deg.) Cu-Kα) Mo/InBIOX4%25-GH<8>3Mo/In'

.@B"

&7

L In2(MoO4)3: 700800 ºC42 4 CK?:I=F9AJ:M5 2.92 eV2- #4$760
L α-Fe2O3 5 $3/1! (Fukushima et al. 2014)
12

Mo/InBIOX+#$Mo22/In16-800#CIE Lab
Mo24-600

In16-800MC-55)

$48
Mo22/In16-800
Mo24-600In16-800
cBIOX-800
MC-554450483646

L*b* (yellowish)

40

3 Mo22/In16-800: Mo22(at.%)/In16(at.%)BIOX+800 ºC
3 Mo22/In16-600: Mo22(at.%)/In16(at.%)BIOX+600 ºC
3 Mo24-6007 Mo24(at.%)BIOX+600 ºC
3 In16-800: In16(at.%)BIOX+800 ºC
3 cBIOX-800: BIOX+800 ºC+3244284240! Mo/InBIOX+800 ºC,"+ 4+
02/1MC-555)&(" * %- 4L6848.3"a6837.2"b6842.55.&'24242832364044

48a* (reddish)13Mo/InBIOX9"."83=(/.!"81.E+07
107

Mo24-600

3=(/@  + SD, n = 6 )1.E+06106

" (cfu/ml)

1.E+05105

104
1.E+04
Mo22/In16-800

103
1.E+03In14-800

Mo22/In16-600

Mo24-600

102
1.E+02

In16-800

101.E+01cBIOX-800

Mo22/In16-800
"BFusarium oxysporum Odoriko1
1.E+00
010

3263

4

&'@hA":!"HB101

, Mo/InBIOX@800 ºCA?24#)6:-9#)7%25
*0"@"-"A1$;<>4814Mo/InBIOX%;+!

6 )9;EAGHDFJ;*!7K 3 SD, n = 8 )100

EAGHDFJ;1 &K%L

I Mo22/In16-600: Mo22(at.%)/In16(at.%) 
BIOX;600 ºC%
I Mo24-600M Mo24(at.%) BIOX;600 ºC%
I In16-800: In16(at.%) BIOX;800 ºC%
I TiO2NP: / A@HBC'KJRC-TIO-15)

80

I !"M 5mg -/10ml 20 µM MB(24 ºC580 rpm L
I $MLED#KLA-HDF158AS, , L
50,0000 lx

60

Mo22/In16-800

40Mo24-600

204 Mo/In BIOX%<240: )9EAGHDFJ
KMBL?=>:1→28+!

In16-800TiO2NP00510152025(.0KhL15W/InBIOX5!%3"!%>CIE Lab$!?

" >:"5( -@ "5( ?
W24/In16-800

W26-800

MC-55

"@Fusarium oxysporum Odoriko>  + SD, n = 6 )W26-800: W26(at.%)BIOX5800 ºC
W24/In16-800: W24(at.%)/In16(at.%)BIOX5800 ºC( &5;<98:)?MC-55, 100ED, 120ED, R-516L= W/InBIOX5
, !% 6*04./-*.", #5'5712
": "HB101

16

.M$X.KM4• .L@CP7029J?IH=BIOXM8% >L CH (.R')GPDKLFH• .M 9"J?IHVWTSU:MR+GPDKAJBH• -!<1 !RFH3,M/LFH• .M6&LNO<-K1 !RFH;
M3,*#:M/5<&AEQP

17

Zpo3H• )!@em`aBZp^JK:q j*$gP]fOR
C ->UnP6,d2.
7e3ZpoN$c[a&3bQo_YbdXP2.1e5<\oeTYo+
47q= [^"?;*c[alLe&3VORc=S
npoy"?N$P"?F*z• i^PE.q&\o;*c[aPsvtruxw->V'ipo9/MfA7q k^38 f#VDGipoyEF*z• ZneP)!@f0q2U[P2/->q.3[^X%[R->;*fhfI3l(bWo18

5-1%(• )GE@IMF>MHLB</1BIOX6&673=2&"6 58:A?MKHJCD,4; 9;:+6,#3*:•  ) .;:'36 &6$< 0:!,*:19

FD• &%D50O@ BD )*O• 6D2/(/O#HA8L C(/.J-DQPRO=AIK8>8• G>7BIOXCE "D$ !.IN?A8L<B:K7$"+O4'D J71D 3FD
4O,9A8L CE70D; B
NML20

+<5:?#".
•=$• 7
• !4• 7
•'D@BCA23& 9;=,09>9)/(6D72020-072068
D-%6798740
DD 9* 198 21
  
TEL086-251-8463
FAX086-251-8961
e-mailcr-ip@okayama-u.ac.jp
URLhttp://www.orpc.okayama-u.ac.jp/

22