Cephalexin Degradation By A Binary Visible-Light Driven Photocatalyst

A promising method is required to treat wastewater, including non-biodegradable drugs# in this research, the binary cuwo4/ bi2s3 was applied for cephalexin (cfx) degradation# the effect of illumination time (60-180 min), pollutant concentration (10-50 ppm), ph (3-11) and light intensity (200-600 w/m2) on the photodegradation of cfx by the binary cuwo4/ bi2s3 composite was investigated# based on the results, the degradation efficiency was reduced from 75% to 43% by the elevation of cfx concentration from 10 to 50 ppm# the efficiency was also improved by time increase (from 60 min to 180 min) and ph reduction (from 11 to 3)# however, light intensity had an optimum value at 400 w/m2, showing no considerable enhancement with further increase of the light intensity#