Chemistry Journal of Moldova

 
https://doi.org/10.19261/cjm.2025.1294

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https://doi.org/10.19261/cjm.2025.1279

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https://doi.org/10.19261/cjm.2025.1264

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https://doi.org/10.19261/cjm.2024.1234

Abstract (PDF)
Graphycal Abstract: This study investigates the radionuclide emissions from nuclear power plants (NPPs), focusing on the gas-aerosol emissions from reactors such as VVER-440. The radionuclide composition of these emissions is analyzed to determine the biological hazards they pose, particularly focusing on isotopes such as tritium and radiocarbon. The research highlights the patterns of radionuclide accumulation in fuel assemblies using "rank-size" coordinates, which provide a more visual and informative method compared to traditional atomic weight dependency analyses.



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https://doi.org/10.19261/cjm.2024.897

Abstract (PDF)
Supplementary Material (PDF)
Graphycal Abstract: The purpose of this work was to compare the structural and sorption characteristics of local vegetal activated carbon obtained from apricot stones (AC-C, Republic of Moldova) with that of commercial activated carbons (Granucol® BI/GE/FA, Germany). According to the obtained results, the local vegetal activated carbon (AC-C) has proven to be comparatively effective with commercial ones (Granucol® type) in removing methylene blue dye from solutions.


Downloads: 253

 
https://doi.org/10.19261/cjm.2024.1161

Abstract (PDF)
Supplementary Material (PDF)
Graphical Abstract: A nanocomposite of chitosan and poly acrylic acid grafting multi-walled carbon nanotubesp (CS-co-AA)/MWCNTs was applied as adsorbent for Ofloxacin adsorption from water solutions. The isotherm constant (KF) of 0.218 and the separation factor (R2) of 0.956 indicate a strong and desirable adsorption of OFL on p(CS-co-AA)/MWCNTs with a concentration of 100 mg/L at a temperature of 293K and an acidic medium with pH of 7.0.




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https://doi.org/10.19261/cjm.2024.1157

Abstract (PDF)
Supplementary Material (PDF)
Graphical Abstract: This research systematically investigates the impact of porphyrin and chlorophyll dyes derived from Syzygium Paniculatum on Dye-Sensitized Solar Cells (DSSC) performance, aiming to achieve maximum solar cell efficiency. The investigation involves utilizing fluorine-doped tin oxide coating with a TiO₂-ZnO composite. Results demonstrate that DSSCs based on TiO₂-ZnO: Al + chlorophyll produce an efficiency of 13.32%, while porphyrin (2:2:0.1) and (2:2:0.2) produce efficiencies of 8.91% and 13.95%, respectively. These findings highlight the potential of utilizing natural dyes for enhancing DSSC performance.



Downloads: 101

 
https://doi.org/10.19261/cjm.2023.1146

Abstract (PDF)
Supplementary Material (PDF)
Graphical Abstract: The ab initio account of f and d electrons in lanthanide ions is assessed taking the Pr(III) ion. This shows rich experimental data and analytical tractability of spectral terms. The calculations are reaching a moderate match to experiment, the analysis identifying the actual impediments and suggesting ways of possible improvement. 



Downloads: 116

https://doi.org/10.19261/cjm.2023.1087

Abstract (PDF)
Graphical Abstract: The Pseudo-Jahn-Teller-Effect governs the glutamate mutase and methylmalonate-CoA mutase preliminary step and provides insight into particular details of in vivo C-N bond cleavage reactions of the adenosylcobalamin cofactor. Multi-configurational self-consistent field (MCSCF) calculations show that the preliminary step reaction glutamate mutase and methylmalonate-CoA mutase processes occur in the absence of total energy barriers.





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