najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2016-7-4-657-661najo-1316Research ArticleСтатьиElectro chemical and photo catalytic studies of MnO2 nanoparticle from waste dry cell batteriesElectro chemical and photo catalytic studies of MnO2 nanoparticle from waste dry cell batteriesMylarappaM.MylarappaM.

Research Centre, Department of Chemistry, AMC Engineering College; Department of Studies and Research in Chemistry, Tumkur University

Bengaluru-560083, Karnataka;Tumkur-572103, Karnataka

Research Centre, Department of Chemistry, AMC Engineering College; Department of Studies and Research in Chemistry, Tumkur University

Bengaluru-560083, Karnataka; Tumkur-572103, Karnataka

Venkata LakshmiV.Venkata LakshmiV.

Research Centre, Department of Chemistry

Bengaluru-560083, Karnataka

Research Centre, Department of Chemistry

Bengaluru-560083, Karnataka

 

Vishnu MaheshK. R.Vishnu MaheshK. R.

Bengaluru-560083, KarnatakaDepartment of Chemistry

Bengaluru-560083, KarnatakaDepartment of Chemistry

NagaswarupaH. P.NagaswarupaH. P.

Research Centre, Department of Science

Bengaluru-560091, Karnataka

Research Centre, Department of Science

Bengaluru-560091, Karnataka

PrashanthaS. C.PrashanthaS. C.

Research Centre, Department of Science

Bengaluru-560091, Karnataka

Research Centre, Department of Science

Bengaluru-560091, Karnataka

SiddeswaraD. M. K.SiddeswaraD. M. K.

Research Centre, Department of Science

Bengaluru-560091, Karnataka

Research Centre, Department of Science

Bengaluru-560091, Karnataka

RaghavendraN.RaghavendraN.

CMRTU

Bengaluru-560059, Karnataka

CMRTU

Bengaluru-560059, Karnataka

AMC Engineering College; Tumkur UniversityИндияAMC Engineering College; Tumkur UniversityIndiaAMC Engineering CollegeИндияAMC Engineering CollegeIndiaDayananda Sagar College of EngineeringИндияDayananda Sagar College of EngineeringIndiaEast West Institute of TechnologyИндияEast West Institute of TechnologyIndiaRV College of EngineeringРоссияRV College of EngineeringRussian Federation20162208202574657661Copyright © Mylarappa M., Venkata Lakshmi V., Vishnu Mahesh K.R., Nagaswarupa H.P., Prashantha S.C., Siddeswara D.M., Raghavendra N., 20252025Mylarappa M., Venkata Lakshmi V., Vishnu Mahesh K.R., Nagaswarupa H.P., Prashantha S.C., Siddeswara D.M., Raghavendra N.Mylarappa M., Venkata Lakshmi V., Vishnu Mahesh K.R., Nagaswarupa H.P., Prashantha S.C., Siddeswara D.M., Raghavendra N.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/1316

The objective of the existing research was essentially focused on recovery of MnO2 nanoparticles from consumed dry cells by employing adapted hydrometallurgical process. Experimental tests for the recovery of MnO2 present in the dry cell batteries have been carried out by an acidic reductive leachant, namely oxalic acid.  The elemental compositions of the recovered metals from dry cells were confirmed by Energy Dispersive X-ray analysis (EDAX). Surface morphology of the recovered metals was examined using Scanning Electron Microscopy (SEM). Phase composition of the recovered metals from dry cell batteries were confirmed from X-ray Diffract meter (XRD). Cyclic Voltammetry (CV) studies were carried out to clarify the reversibility of the reactions. The obtained MnO2 catalyst was applied for the degradation of different non-volatile dye compounds such as Indigo carmine (IC) and Rhodamine B (RB). The performance of MnO2 shows fast degradation of dyes of high concentration.

The objective of the existing research was essentially focused on recovery of MnO2 nanoparticles from consumed dry cells by employing adapted hydrometallurgical process. Experimental tests for the recovery of MnO2 present in the dry cell batteries have been carried out by an acidic reductive leachant, namely oxalic acid.  The elemental compositions of the recovered metals from dry cells were confirmed by Energy Dispersive X-ray analysis (EDAX). Surface morphology of the recovered metals was examined using Scanning Electron Microscopy (SEM). Phase composition of the recovered metals from dry cell batteries were confirmed from X-ray Diffract meter (XRD). Cyclic Voltammetry (CV) studies were carried out to clarify the reversibility of the reactions. The obtained MnO2 catalyst was applied for the degradation of different non-volatile dye compounds such as Indigo carmine (IC) and Rhodamine B (RB). The performance of MnO2 shows fast degradation of dyes of high concentration.

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The authors declare that there are no conflicts of interest present.