ADSORPTION OF CHROMIUM FROM AQUEOUS SOLUTION USING POLYANILINE

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RIAHI SAMANI MAJID; BORGHAI SEYYED MEHDI; OLAD ALI; CHAICHI MOHAMMAD JAVAD

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Journal: WATER AND WASTEWATER Year:2011 | Volume:22 | Issue:3 (79) Page(s): 2-9

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Information Journal Paper

Title

ADSORPTION OF CHROMIUM FROM AQUEOUS SOLUTION USING POLYANILINE

Author(s)

RIAHI SAMANI MAJID | BORGHAI SEYYED MEHDI | OLAD ALI | CHAICHI MOHAMMAD JAVAD | Issue Writer Certificate

Keywords

POLYANILINEQ2

ENVIRONMENTAL POLLUTIONQ3

CHROMIUMQ2

ADSORPTIONQ2

REDUCTIONQ3

Abstract

New group of polymers have been synthesized that are conductive of electricity so they are called conducting polymers. One of the most conducting polymers is "POLYANILINE". In the present study, POLYANILINE was synthesized by oxidizing aniline monomer under strongly acidic conditions using potassium iodate as an initiator of oxidative polymerization. Synthesized POLYANILINE as a powder used as an adsorbent to remove CHROMIUM from aqueous solution. Experiments were conducted in batch mode with variables such as amount of POLYANILINE, CHROMIUM solution pH and adsorbtion isotherms. Due to presence of Cr (III) in solution after using POLYANILINE, removal mechanism is the combination of surface ADSORPTION and REDUCTION. It seems that POLYANILINE reduces the Cr (VI) to Cr (III) and adsorbs the Cr (III) and a part of remaining Cr (VI). It is well known that nitrogen atom in compounds of amine derivative makes co-ordinate bond with positive charge of metals due to the presence of electron in sp3 orbital of nitrogen. The majority of total CHROMIUM removal occurred at 30 minute for POLYANILINE and the optimum time for hexavalent CHROMIUM removal was about 5 min. POLYANILINE has the maximum total cheomiume removal at pH, 3-9. The maximum hexavalent CHROMIUM removal occurred at acidic pH for POLYANILINEs. The equilibrium ADSORPTION data for POLYANILINE fitted both Freundlich’s and Langmuir’s isotherms. This research shows that POLYANILINE can be used as an adsorbent for removal CHROMIUM from aqueous solution.

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APA: Copy

RIAHI SAMANI, MAJID, BORGHAI, SEYYED MEHDI, OLAD, ALI, & CHAICHI, MOHAMMAD JAVAD. (2011). ADSORPTION OF CHROMIUM FROM AQUEOUS SOLUTION USING POLYANILINE. WATER AND WASTEWATER, 22(3 (79)), 2-9. SID. https://sid.ir/paper/103673/en

Vancouver: Copy

RIAHI SAMANI MAJID, BORGHAI SEYYED MEHDI, OLAD ALI, CHAICHI MOHAMMAD JAVAD. ADSORPTION OF CHROMIUM FROM AQUEOUS SOLUTION USING POLYANILINE. WATER AND WASTEWATER[Internet]. 2011;22(3 (79)):2-9. Available from: https://sid.ir/paper/103673/en

IEEE: Copy

MAJID RIAHI SAMANI, SEYYED MEHDI BORGHAI, ALI OLAD, and MOHAMMAD JAVAD CHAICHI, “ADSORPTION OF CHROMIUM FROM AQUEOUS SOLUTION USING POLYANILINE,” WATER AND WASTEWATER, vol. 22, no. 3 (79), pp. 2–9, 2011, [Online]. Available: https://sid.ir/paper/103673/en

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