Morpho-structural, adsorption and electrochemical characteristics of serpentinite
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2016
Authors
Momčilović, Milan Z.Ranđelović, Marjan S.
Purenović, Milovan M.
Đorđević, Jelena S.
Onjia, Antonije E.
Matović, Branko
Article (Published version)
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Pollution control and water purification are the main concerns associated with hazardous component eliminations from wastewaters which have inspired the research, among the others, on various clay minerals as useful adsorbents. The aim of this study was to examine morphological, structural, adsorption, and electrochemical characteristics of serpentinite in order to check its potential for removal of cadmium and textile dyes from synthetic waters. SEM technique has provided a detailed insight into the surface morphology of serpentinite indicating irregularly shaped particles and lamellar aggregates which are characteristic of lizardite mineral. Crystal phases detected in composition of serpentinite by using XRD technique are lizardite and tiny amount of periclase. Serpentinite adsorption characteristics were investigated towards Cd2+ and anionic textile dyes (Procion red MX-5B, Procion orange and Ramazol black) in aqueous solutions. The main goal of the study was the reliable removal of... hazardous Cd2+ at low initial concentrations (up to 200 mu g/dm(3)). Textile dyes were taken as the models of anionic organic pollutants in water. All the adsorption experiments were carried out in batch conditions by varying initial parameters such as concentration of pollutant, contact time, mass of adsorbent and pH. Based on the obtained results, serpentinite has proven to be efficient adsorbent with removal efficiency over 98% for the selected pollutants. Native serpentinite was further modified in order to obtain forsterite. Electrochemical characteristics of serpentinite and forsterite were examined by using cyclic voltammetry of solution of 0.1 M H2SO4 as acidic supporting electrolyte and K-4[Fe(CN)(6)] which was chosen as a redox model compound. Due to its specific structure, surface groups, morphology, and non-stoichiometric composition, serpentinite and forsterite exhibited prominent electrocatalytic activity. (C) 2016 Elsevier B.V. All rights reserved.
Keywords:
Serpentinite / Forsterite / Water purification / Cyclic voltammetrySource:
Separation and Purification Technology, 2016, 163, 72-78Publisher:
- Elsevier
Funding / projects:
- Synthesis, processing and characterization of nanostructured materials for application in the field of energy, mechanical engineering, environmental protection and biomedicine (RS-45012)
- Advanced technologies for monitoring and environmental protection from chemical pollutants and radiation burden (RS-43009)
- Physics and Chemistry with Ion Beams (RS-45006)
DOI: 10.1016/j.seppur.2016.02.042
ISSN: 1383-5866; 1873-3794
WoS: 000374076700009
Scopus: 2-s2.0-84959387653
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Institution/Community
VinčaTY - JOUR AU - Momčilović, Milan Z. AU - Ranđelović, Marjan S. AU - Purenović, Milovan M. AU - Đorđević, Jelena S. AU - Onjia, Antonije E. AU - Matović, Branko PY - 2016 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1015 AB - Pollution control and water purification are the main concerns associated with hazardous component eliminations from wastewaters which have inspired the research, among the others, on various clay minerals as useful adsorbents. The aim of this study was to examine morphological, structural, adsorption, and electrochemical characteristics of serpentinite in order to check its potential for removal of cadmium and textile dyes from synthetic waters. SEM technique has provided a detailed insight into the surface morphology of serpentinite indicating irregularly shaped particles and lamellar aggregates which are characteristic of lizardite mineral. Crystal phases detected in composition of serpentinite by using XRD technique are lizardite and tiny amount of periclase. Serpentinite adsorption characteristics were investigated towards Cd2+ and anionic textile dyes (Procion red MX-5B, Procion orange and Ramazol black) in aqueous solutions. The main goal of the study was the reliable removal of hazardous Cd2+ at low initial concentrations (up to 200 mu g/dm(3)). Textile dyes were taken as the models of anionic organic pollutants in water. All the adsorption experiments were carried out in batch conditions by varying initial parameters such as concentration of pollutant, contact time, mass of adsorbent and pH. Based on the obtained results, serpentinite has proven to be efficient adsorbent with removal efficiency over 98% for the selected pollutants. Native serpentinite was further modified in order to obtain forsterite. Electrochemical characteristics of serpentinite and forsterite were examined by using cyclic voltammetry of solution of 0.1 M H2SO4 as acidic supporting electrolyte and K-4[Fe(CN)(6)] which was chosen as a redox model compound. Due to its specific structure, surface groups, morphology, and non-stoichiometric composition, serpentinite and forsterite exhibited prominent electrocatalytic activity. (C) 2016 Elsevier B.V. All rights reserved. PB - Elsevier T2 - Separation and Purification Technology T1 - Morpho-structural, adsorption and electrochemical characteristics of serpentinite VL - 163 SP - 72 EP - 78 DO - 10.1016/j.seppur.2016.02.042 ER -
@article{ author = "Momčilović, Milan Z. and Ranđelović, Marjan S. and Purenović, Milovan M. and Đorđević, Jelena S. and Onjia, Antonije E. and Matović, Branko", year = "2016", abstract = "Pollution control and water purification are the main concerns associated with hazardous component eliminations from wastewaters which have inspired the research, among the others, on various clay minerals as useful adsorbents. The aim of this study was to examine morphological, structural, adsorption, and electrochemical characteristics of serpentinite in order to check its potential for removal of cadmium and textile dyes from synthetic waters. SEM technique has provided a detailed insight into the surface morphology of serpentinite indicating irregularly shaped particles and lamellar aggregates which are characteristic of lizardite mineral. Crystal phases detected in composition of serpentinite by using XRD technique are lizardite and tiny amount of periclase. Serpentinite adsorption characteristics were investigated towards Cd2+ and anionic textile dyes (Procion red MX-5B, Procion orange and Ramazol black) in aqueous solutions. The main goal of the study was the reliable removal of hazardous Cd2+ at low initial concentrations (up to 200 mu g/dm(3)). Textile dyes were taken as the models of anionic organic pollutants in water. All the adsorption experiments were carried out in batch conditions by varying initial parameters such as concentration of pollutant, contact time, mass of adsorbent and pH. Based on the obtained results, serpentinite has proven to be efficient adsorbent with removal efficiency over 98% for the selected pollutants. Native serpentinite was further modified in order to obtain forsterite. Electrochemical characteristics of serpentinite and forsterite were examined by using cyclic voltammetry of solution of 0.1 M H2SO4 as acidic supporting electrolyte and K-4[Fe(CN)(6)] which was chosen as a redox model compound. Due to its specific structure, surface groups, morphology, and non-stoichiometric composition, serpentinite and forsterite exhibited prominent electrocatalytic activity. (C) 2016 Elsevier B.V. All rights reserved.", publisher = "Elsevier", journal = "Separation and Purification Technology", title = "Morpho-structural, adsorption and electrochemical characteristics of serpentinite", volume = "163", pages = "72-78", doi = "10.1016/j.seppur.2016.02.042" }
Momčilović, M. Z., Ranđelović, M. S., Purenović, M. M., Đorđević, J. S., Onjia, A. E.,& Matović, B.. (2016). Morpho-structural, adsorption and electrochemical characteristics of serpentinite. in Separation and Purification Technology Elsevier., 163, 72-78. https://doi.org/10.1016/j.seppur.2016.02.042
Momčilović MZ, Ranđelović MS, Purenović MM, Đorđević JS, Onjia AE, Matović B. Morpho-structural, adsorption and electrochemical characteristics of serpentinite. in Separation and Purification Technology. 2016;163:72-78. doi:10.1016/j.seppur.2016.02.042 .
Momčilović, Milan Z., Ranđelović, Marjan S., Purenović, Milovan M., Đorđević, Jelena S., Onjia, Antonije E., Matović, Branko, "Morpho-structural, adsorption and electrochemical characteristics of serpentinite" in Separation and Purification Technology, 163 (2016):72-78, https://doi.org/10.1016/j.seppur.2016.02.042 . .