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Title

ELECTROCHEMICAL BEHAVIOR OF BENZENE 1,4-DITHIOL AND IT’S APPLICATION

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Abstract

 WATER POLLUTION BY METAL IONS IN INDUSTRIAL EFFLUENTS HAS GAINED WORLDWIDE ATTENTION [1-5].A NUMBER OF REGULATORY AGENCIES HAVE TAKEN CARE TO RESTRICT UNTREATED WASTEWATER DISCHARGES INTO PUBLIC SEWERS, RIVERS, SEA AND ONTO LAND. THE REMOVAL OF METAL IONS IS IMPORTANT DUE TO THEIR HAZARDS TO HUMAN HEALTH AS WELL AS TO OTHER LIVING ORGANISMS.THEREFORE, IT IS ESSENTIAL TO EXTEND METHODS FOR REMOVAL OF METAL IONS TO DECREASE THE POLLUTION LOAD ON THE ENVIRONMENT. IN THESE WORK, THE REDOX BEHAVIOR OF BENZENE 1, 4-DITHIOL (BDT) IN AQUEOUS AND NON-AQUEOUS MEDIA HAS BEEN EXAMINED BY CYCLIC VOLTAMMETRY. THE VOLTAMMOGRAMS WERE RECORDED WITH ΜAUTOLAB FRA2 POTENTIOSTAT-GALVANOSTAT. A THREE-ELECTRODE SYSTEM WAS USED WITH A PLATINUM ROD AS WORKING ELECTRODE, A GC ELECTRODE AS THE COUNTER ELECTRODE AND AN AG/AGCL AS THE REFERENCE ELECTRODE. ALL TESTS WERE CARRIED OUT UNDER ROOM TEMPERATURE AND N2 ATMOSPHERE. THE PH STRONGLY AFFECTS THE PEAK POTENTIAL OF BDT. THE PEAK CURRENTS WERE PROPORTIONAL TO BDT CONCENTRATIONS IN THE RANGE OF 1.0 × 10-6- 1.0 × 10-3 M UNDER THE OPTIMIZED EXPERIMENTAL CONDITIONS. THE DETECTION LIMIT WAS 2.5 × 10-7 M. THE EFFECT OF POTENTIAL SCAN RATE ON THE PEAK POTENTIAL AND PEAK CURRENT OF BDT WAS INVESTIGATED. THE CORRELATION OF THE PEAK CURRENTS AGAINSTV 1 / 2 IS LINEAR, WHICH IS VERY SIMILAR TO A DIFFUSION-CONTROLLED PROCESS. THE EFFECTS OF VARIOUS SOLVENTS ON ELECTROCHEMICAL BEHAVIOR OF BDT WERE EVALUATED IN 5.0 × 10-5 M BDT. IN THE LAST STEP, THIS COMPOUND USED SUCCESSFULLY FOR REMOVAL OF SOME HEAVY METAL IONS IN WATER.

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