Laser-Induced Photocatalysis and its Applications in Petrochemicals ...
Laser-Induced Photocatalysis and its Applications in Petrochemicals ...
Laser-Induced Photocatalysis and its Applications in Petrochemicals ...
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3.5Absorbance32.521.5Time= 0 MTime=15 MTime= 30MTime= 60 MTime=75 M10.50190 210 230 250 270 290 310Wavelength(nm)Figure 8 Typical UV absorption spectra of the degradation of phenol at laser exposuretimes rang<strong>in</strong>g from 0 to 75 m<strong>in</strong>utes recorded with UV spectrometer.7060Phenol concentration50403020100 mg200 mg300 mg1000 5 10 15 20 25Time(m<strong>in</strong>utes)Fig.9 The dependence of the removal of phenol on the concentration of the WO 3catalyst. Here the concentration of WO 3 was varied from 100 mg to 300 mg.
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