Prediction of bio-inorganic activities of metalloporphyrins and phthalocyanines for selecting of the best photocatalysts in 4-chlorophenol degradation: [Zinc(II)5,10,15,20-Tetrakis(2,6-dichloro-3-chlorosulfophenyl) porphyrin]

One of the wastewater pollutants is 4-chlorophenol that is extensively used in wood preservation, pesticide and etc. It causesEye and skin irritation [1]. Porphyrins have been utilized as photocatalysts to photodegrade pollutants due toa wide spectrum of light (UV-Vis) absorption,so charge has been transferred easily and this makes good photo physicochemical properties in porphyrin structures [2].In this study porphyrins and phthalocyanines which photodegraded 4-chlorophenol in the same condition are classified into three major groups; tetra sulfonatophenyl porphyrins (I), tetraphenyl porphyrins (II) and phthalocyanines (III). Biological activities, mechanisms, and toxicities of mentioned classes are estimatedthrough PASS software to find out the best compoundin photodegradation of 4-chlorophenol. Each biological activities or mechanism which is higher than 50%, the considered compound is active in that case and the absence oftoxicity is the advantage of photocatalysts. As mentioned points, FeTDCPPS, ZnTDCPPS,and ZnPcS4are better compounds in photodegradation of 4-chlorophenol. The range of activity probability (Pa) of biological activities,mechanisms, and toxicitiesforall of the pointed compoundsare 0.514-0.897, 0.53-0.89 and 0.000-0.725respectively.As a conclusion, for selecting of the best photocatalyst can be shown; ZnTDCPPS> FeTDCPPS> ZnPcS4. Finally,the result of Zinc(II) 5,10,15,20-Tetrakis(2,6-dichloro-3-chlorosulfophenyl) porphyrin:[ZnTDCPPS]with higher average biological activities (0.514-0.887), mechanisms (0.62-0.876) and lower toxicity (0.000-0.274) was satisfying photocatalysts in 4-chlorophenol degradation.