Article (Scientific journals)
Synthesis of Periclase Phase (MgO) from Colloidal Cassava Starch Suspension, Dual Application: Cr(III) Removal and Pigment Reuse
Balaba, Nayara; Primo, Julia de O.; Sotiles, Anne R. et al.
2024In Physchem, 4 (1), p. 61-77
Peer reviewed
 

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Keywords :
Industrial and Manufacturing Engineering; Materials Science (miscellaneous); Business and International Management
Abstract :
[en] This study aimed to synthesize magnesium oxide (MgO) using a colloidal starch method for two primary purposes: the removal of chromium (III) ions from synthetic wastewater and the subsequent use of the chromium-containing material as synthetic inorganic pigments (SIPs) in commercial paints. The synthesis used to obtain the oxide (St-MgO) is a promising method for using plants, such as cassava, as green fuels due to their abundance, low cost, and non-toxicity. With this, the oxide showed greater porosity and alkalinity, compared to commercial magnesium oxide (Cm-MgO). The MgO samples were subjected to structural characterization using XRD and FTIR, surface area and pore volume study by B.E.T. and SEM, and chemical composition by ICP-OES and thermogravimetric analysis (TGA). The crystalline periclase phase was identified for both samples, but the brucite phase was shown to be a secondary phase for the commercial sample. After the removal of chromium ions, the brucite crystalline phase became the majority phase for the samples, regardless of the concentration of ions removed. The pigments were characterized by color measurements and discussed in terms of colorimetric parameters using the CIELab method and electron spectroscopy (VIS-NIR). This study also evaluated the colorimetric stability of green pigments in aggressive environments (acidic and alkaline) over a 240 h exposure period, demonstrating minimal color difference. This study aims to develop materials for the decontamination of wastewater containing chromium and its reuse as a synthetic inorganic pigment, using an innovative and sustainable synthesis method.
Disciplines :
Chemistry
Author, co-author :
Balaba, Nayara;  Department of Chemistry, Midwestern State University, Alameda Elio Antonio Dalla Vecchia, 838, Guarapuava 85040-167, Brazil ; Chimie des Interactions Plasma-Surface (ChIPS), Research Institute for Materials Science and Engineering, University of Mons, 7000 Mons, Belgium
Primo, Julia de O. ;  Department of Chemistry, Midwestern State University, Alameda Elio Antonio Dalla Vecchia, 838, Guarapuava 85040-167, Brazil
Sotiles, Anne R. ;  Department of Chemistry, Midwestern State University, Alameda Elio Antonio Dalla Vecchia, 838, Guarapuava 85040-167, Brazil
Jaerger, Silvia ;  Department of Chemistry, Midwestern State University, Alameda Elio Antonio Dalla Vecchia, 838, Guarapuava 85040-167, Brazil
Lopes horsth, Dienifer Fernanda  ;  Université de Mons - UMONS > Faculté des Sciences > Service de Chimie des Interactions Plasma-Surface ; Department of Chemistry, Midwestern State University, Alameda Elio Antonio Dalla Vecchia, 838, Guarapuava 85040-167, Brazil
BITTENCOURT, Carla  ;  Université de Mons - UMONS > Faculté des Sciences > Service de Chimie des Interactions Plasma-Surface
Anaissi, Fauze J. ;  Department of Chemistry, Midwestern State University, Alameda Elio Antonio Dalla Vecchia, 838, Guarapuava 85040-167, Brazil
Language :
English
Title :
Synthesis of Periclase Phase (MgO) from Colloidal Cassava Starch Suspension, Dual Application: Cr(III) Removal and Pigment Reuse
Publication date :
04 February 2024
Journal title :
Physchem
ISSN :
2673-7167
Publisher :
MDPI AG
Volume :
4
Issue :
1
Pages :
61-77
Peer reviewed :
Peer reviewed
Research unit :
S882 - Chimie des Interactions Plasma-Surface
Research institute :
Research Institute for Materials Science and Engineering
Funders :
CNPq Productivity
CNPq
WBI/Confap-Fundação Araucária
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