Competition between fragmentation and defragmentation of сarbon black nanoparticle agglomerates under a degenerate optical microcavitation mode by Alexandra Shamova, Galina Shandybina, Dmitry Polyakov, Evgeny Kuzmin, Valeria Domazhirova, Andrey Belikov

“…A mechanism for defragmentation of carbon black nanoparticle agglomerates has been proposed based on the creation of prerequisites for water transition into the state of a supercritical fluid accompanied by partial agglomerate dissolution in laser-induced long-lived microbubbles at the cooling stage and on the decrease of agglomerate maximum heating temperature because of increased light scattering by long-lived microbubbles. …”
Get full text

Green Synthesized Composite AB-Polybenzimidazole/TiO₂ Membranes with Photocatalytic and Antibacterial Activity by Hristo Penchev, Katerina Zaharieva, Silvia Dimova, Ivelina Tsacheva, Rumyana Eneva, Stephan Engibarov, Irina Lazarkevich, Tsvetelina Paunova-Krasteva, Maria Shipochka, Ralitsa Mladenova, Ognian Dimitrov, Daniela Stoyanova, Irina Stambolova

“…Modified Eaton’s reagent (methansulfonic acid/P₂O₅) was used as both reaction media for microwave-assisted synthesis of AB-PBI and as an efficient dispersant of partially agglomerated titanium dioxide powders. Composite membranes of 80 µm thickness have been prepared by a film casting approach involving subsequent anti-solvent inversion in order to obtain porous composite membranes possessing high sorption capacity. …”
Get full text