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CLEANWATER project meeting

(on line)

July, 21 2026

Moldova State University, Institute of Chemistry team

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Work package No. 1: Synthesis and characterization of adsorbents

Carbon-based adsorbents:

Activated carbons were synthesized from peach stones carbonized by two different methods: (i) conventional thermal heating under an inert atmosphere (CASP-C) and (ii) microwave-assisted heating, also under an inert atmosphere (CASP-M).
The adsorption properties and structural parameters of the newly synthesized activated carbons led to the following findings:
The CASP-C sample exhibited a specific surface area approximately 1.2 times larger than that of CAPS-M.
The methylene blue adsorption index was remarkably high and nearly identical for both activated carbon samples.
The synthesis yield of activated carbon produced from microwave-carbonized char was about 2.2 times higher than that obtained from char produced by the conventional carbonization method.

(A patent application is in preparation)

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Work package No. 1: Synthesis and characterization of adsorbents

Pectines:

Patent Application MD 7501 from 05.05.2025. Method for increasing the exchange capacity of pectines through oxidation. Authors: Petuhov, O., Boldurescu, N., Timbaliuc, N., Nastas, R., Ceban, I., Lupascu, T.

still in evaluation

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Work package No. 4: Evaluation of adsorption performance

Adsorption of o-nitrophenol

Based on the results of o-nitrophenol adsorption on four activated carbon samples (autochthonous activated carbons AC-C and AC-MR (obtained from apricot stones and apple wood), and commercial carbons AG-5 and BAU), a manuscript has been prepared for publication.

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Work package No. 4: Evaluation of adsorption performance

Based on the results of quinacrine dihydrochloride adsorption on autochthonous activated carbons AC-C and AC-MR (obtained from apricot stones and apple wood) a manuscript has been prepared for publication.

Adsorption of quinacrine dihydrochloride

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Work package No. 5: Dissemination, communication and exploitation

MD.16. CLEANWATER – Multifunctional sustainable adsorbents for water treatment assisted with plasma technologies and for health protection from xenobiotics. R, Nastas, T. Lupascu, O. Petuhov, N. Timbaliuc, I. Ceban, N. Boldurescu, T. Mitina. SIIAI 2026 - International Exhibition of Inventions and Innovative Entrepreneurship, 19-20 of June 2026, Chisinau, R. Moldova. https://upsc.md/events/salonul-international-de-inventica-si-antreprenoriat-inovativ-editia-2026/ https://www.facebook.com/watch/?v=2035892383720806

Exhibition SIIAI 2026

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Work package No. 5: Dissemination, communication and exploitation

Publications

O. Petuhov, L. Lupascu, T. Vlase, N. Timbaliuc, N. Boldurescu, T. Lupascu, A. Rotaru. Enhanced surface accessibility and adsorption of Bacillus subtilis and Candida albicans on porous hierarchically ordered bio-based carbon materials. Hybrid Advances, 13(2006) 100645, https://doi.org/10.1016/j.hybadv.2026.100645 .

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Mobility (secondments)

1 Secondment to UALI, Spain (01-30 June 2026)-O. Petuhov
2 Secondments to ENV, Slovakia (1-30 August 2026)- I. Ceban, R. Nastas
1 Secondment to KazNTU, Kazahstan (24 July – 25 August 2026) – I. Povar

Total planned secondments during 2026-2027- 16 person/months