KS L ISO 10678-2012 Fine ceramics(advanced ceramics advanced technical ceramics)-Determination of photocatalytic activity of surface in an aqueous medium by degradation of methylen.pdf

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1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS L ISO 10678 KS L ISO 10678： 2012 2012 9 17 http:/www.kats.go.krKS L ISO 10678:2012 : ( ) ( ) () LH KCC ( ) : (http:/www.standard.go.kr) ： ：2012 9 17 2012-0439 ： ： ( 02-509-7270) (http:/www.kats.go.kr). 10 5 , . KS L ISO 10678:2012 i ii 1 1 2 .1 3 .2 4 3 5

2、 3 6 3 7 4 8 .4 9 .4 10 .5 11 6 11.1 6 11.2 6 11.3 .6 11.4 .6 11.5 6 11.6 .6 11.7 6 12 7 12.1 .7 12.2 .7 13 .7 A( ) 8 B( ) .9 C( ) 10 11 KS L ISO 10678:2012 12 KS L ISO 10678:2012 ii 2010 1 ISO 10678, Fine ceramics(advanced ceramics, advanced technical ceramics) Determination of photocatalytic activ

3、ity of surfaces in an aqueous medium by degradation of methylene blue . KS L ISO 10678:2012 Fine ceramics(advanced ceramics, advanced technical ceramics)Determination of photocatalytic activity of surface in an aqueous medium by degradation of methylene blue 1 (MB) . . , . . 2 . 2.1 (specific photoc

4、atalytic activity), PMB mol/m2h . 2.2 (photonic efficiency), MB 1 . 2 1 . 2.3 (test solution) KS L ISO 10678:2012 2 2.4 (measuring solution) 10 % (2.3) 2.5 (conditioning solution) 3 11 . 1 (Plancks constant, h = 6.626 1034Js) h Js (Avogadro number, NA= 6.022 10231/mol) NA1/mol (Relative molar mass)

5、M g/mol (Molar extinction coefficient) m2/mol (Time) t h (Time of measurement) tm (Concentration) c mol/L (Absorbance) Aunitless (Length) d cm (Volume of test solution) V L (Irradiated area) A m2 (Wavelength) m (UV-radiation intensity) E W/m2 (Average UV-radiation intensity) mavttEE=dW/m2 (Specific

6、degradation rate) AdtVAR= mol/(m2h) (Specific degradation rate with UV radiation) AdtVAR,irr=irrmol/(m2h) (Specific degradation rate without UV radiation) AdtVARdark,=darkmol/(m2h) (Specific photoactivity) PMB Rdark Rirr mol/(m2h) (Photonic UV-radiation intensity) 600 3avmax=APhcNEE mol/(m2h) (Avera

7、ge photonic UV-radiation intensity) EP,avmol/(m2h) (Photonic efficiency) 100MB=PMBEP % KS L ISO 10678:2012 3 4 (320 nm 400 nm) . /- . . . 5 5.1 . , , , , , , . . 5.2 ( B ). 5.3 (glass pane) (5.4) . 5.4 (UV-radiation light source) 320 nm 400 nm(UV-A) E (100.5) W/m2 5.5 (UV radiometer) 5.6 / (UV/vis-s

8、pectrophotometer) 600 nm 700 nm . 5.7 (measurement cell) 80 % (optical length) 10 mm . 6 5.5 5.6 . KS L ISO 10678:2012 4 7 . . (c0) (100.5) mol/L . (c) (201) mol/L . (A) (1) . dcA =(1) 1 d 10 mm A,max 0.74 , A,max 1.48 . 2 (C16H18ClN3S3H2O, M 373.90 g/mol) 350 nm450 nm . (100.5) mol/L () 664 nm 7 40

9、2.8 m2/mol ( 2 ). 8 (1001) mm2(1 50015) mm2 . . 400 nm 10 W/m2 (E) 2472 . B.1 (350.3) mL . (7. ) . . 12 . . 9 ( B.2 ) (7. ) (5.2) . . (t0) ( 1 ). 20 mm50 mm . 10 . . (A) 1 000 mm2 50 mm 50 mL . KS L ISO 10678:2012 5 Y (absorbance) X (time) 1 - 2 - 1 - 10 (5.3) . ( 1 1 2) - ( 1 t1 t2 ) . (5.4) (100.5

10、) W/m2 (E) . 20 . . (232) , . . () (6645) nm . (2.3)( 1 1 2) (2.4) . 20 . 3 . . ( 1 1). . (11. A ) (MB) 0.10 % , (2.50.13) W/m2 (E) . (2.50.13) W/m2 . (100.5) W/m2 (E) (MB) 0.10 % . KS L ISO 10678:2012 6 11 11.1 1 t3 t4 . B.1 B.2 (t0) 9 (minimum-mean-square method) . . A . 11.2 (specific degradation

11、 rate, R) (R) (2) . dAtVAR= (2)11.3 (photonic UV-radiation intensity, EP) (EP) (3) (E) . 074306003maxmax= EhcNEE AP(3) 11.4 (Average UV-radiation intensity, Eav) (Eav) (4) . mavttEE=d(4) 11.5 (Average photonic UV-radiation intensity, EP,av) (EP,av) (5) (Eav) . 074306003maxmax=avAavP,avEhcNEE (5) 11.

12、6 (Specific photoactivity, PMB) (PMB) (6) . PMB Rirr Rdark (6) 11.7 (Photonic efficiency, MB) (MB) (7) . 100MB=PMBEP (7) KS L ISO 10678:2012 7 12 (precision) 12.1 (repeatability) , (r) 5 % . 4 C . 12.2 (reproducibility) , (R) 5 % . C . 13 . a) , KS L ISO 10678:2012 b) c) ( , , ) , ( B.1 B.2) , , d)

13、e) f) g) , ( , ) h) , PMB, i) , MB, j) k) KS L ISO 10678:2012 8 A ( ) (V) 0.03 L (A) 10.75 cm2 () 365 nm (d) 10 mm tm 0 ( 1 t3) tm 80 ( 1 t4). (Rirr Rdark), PMB MB 11.2, 11.6 11.7 . tm A . tm 80 PMB MB tm 80 . tm 20tm 80 . PMB 2.5410-5mol/m2h , MB 0.024 % . A.1 . A.1 tmmin tmh A,irr1 A,dark1 E, EavW

14、/m2Eav:(4)aEP, EP,avmol/m2h(3),(5)aRirrmol/m2h (2)aRdarkmol/m2h (2)aPMBmol/m2h (6)aMB% (7)a0 0.00 0.570 0.549 10 0.110 20 0.33 0.545 0.546 10 0.110 2.831053.391062.491050.02340 0.67 0.512 0.540 10 0.110 3.731056.791063.051050.02860 1.00 0.490 0.538 10 0.110 2.491052.261062.261050.02180 1.33 0.461 0.

15、530 10 0.110 3.281059.051062.371050.022100 1.67 0.450 0.520 10 0.110 1.24 1051.131051.131060.001120 2.00 0.426 0.517 10 0.110 2.711053.391062.371050.022140 2.33 0.406 0.511 10 0.110 2.261056.791061.581050.014160 2.67 0.385 0.507 10 0.110 2.371054.521061.921050.018180 3.00 0.365 0.500 10 0.110 2.2610

16、57.921061.471050.013a KS L ISO 10678:2012 9 B ( ) B.1 B.1 B.2 B.2 B.3 UV-A 320 nm 400 nm . UV-A . 1 2 , 3 4 (5.3) 5 (5.4) 1 (5.5) 2 3 4 5 6 (5.3) 7 8 (5.4) 9 / (5.6) KS L ISO 10678:2012 10 C ( ) KS A ISO 5725 21 2006 4 C.1 . C.1 MBP s mol/(m2h) mol/(m2h) 1 7 26.9 1.32 2 6 15.7 2.6 3 4 14.9 1.48 4 4

17、20.8 1.54 , MBP 20.25 mol/(m2h) , sr1.85 mol/(m2h) , r (r=2,8sr) 5.18 mol/(m2h) 9.2 % , sR6.19 mol/(m2h) , R (R=2,8sR) 17.3 mol/(m2h) 30.6 % KS L ISO 10678:2012 11 1 KS A ISO 57252, ( ) 2： 2 Scott Prahl, Oregon Medical Laser Center, http:/omlc.ogi.edu/spectra/mb KS L ISO 10678:2012 12 KS L ISO 10678

18、:2012 . 1 . (KS) (ISO) , . 2 2010 1 ISO 10678, Fine ceramics(advanced ceramics, advanced technical ceramics) Determination of photocatalytic activity of surfaces in an aqueous medium by degradation of methylene blue . . SI . 3 2010 1 ISO 10678 KS L ISO 10678 2012 . : , , , , 153787 1 92 3(13) (02)26

19、240114 (02)262401489 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS L ISO 10678:2012 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Fine ceramics(advanced ceramics, advanced technical ceramics) Determination of photocatalytic activity of surfaces in an aqueous medium by degradation of methylene blue ICS 81.060.30