Rms the discovering of Song et al. [12] relating to the presence of a thin film between droplets throughout dropwise condensation of steam on a steel surface. In summary, our outcomes show that neither nucleation theory nor film rupture theory can individually clarify the mechanism of dropwise condensation. Therefore, there’s a want to get a additional extensive theory to clarify the physics of dropwise condensation. Future work must quantitatively study the parameters affecting the development with the thin-film involving droplets and also the effect of thin-film around the heat transfer price.Author Contributions: Conceptualization, S.B.A.; methodology, S.B.A.; software program, S.B.A.; validation, S.B.A.; formal evaluation, S.B.A.; investigation, S.B.A.; sources, C.K.C.; data curation, S.B.A.; writing–original draft preparation, S.B.A.; writing–review and editing, S.B.A., K.-B.L. and C.K.C.; visualization, S.B.A.; supervision, C.K.C.; project administration, C.K.C.; funding acquisition, K.-B.L. All authors have study and agreed towards the published version in the manuscript. Funding: This study received no external funding. Conflicts of Interest: The authors declare no conflict of interest.
applied sciencesArticleNovel Sodium Alginate/Polyvinylpyrrolidone/TiO2 nanocomposite for Efficient Removal of Cationic Dye from Aqueous SolutionNoha A. Elessawy 1, , Marwa H. Gouda 1 , Mohamed S. Elnouby 1 , Hoda F. Methyl aminolevulinate Biological Activity Zahran 2 , Aly Hashim 1 , Mona M. Abd El-Latif 1 and Diogo M. F. Santos 3, Advanced Technology and New Components Study Institute (Sapienic acid Description ATNMRI), City of Scientific Study and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria P.O. Box 21934, Egypt; [email protected] (M.H.G.); [email protected] (M.S.E.); [email protected] (A.H.); [email protected] (M.M.A.E.-L.) Atmosphere and All-natural Supplies Study Institute, City of Scientific Investigation and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria P.O. Box 21934, Egypt; [email protected] Center of Physics and Engineering of Advanced Components (CeFEMA), Instituto Superior T nico, Universidade de Lisboa, 1049-001 Lisbon, Portugal Correspondence: [email protected] (N.A.E.); [email protected] (D.M.F.S.)Featured Application: Novel SA/PVP/TiO2 nanocomposite beads is usually utilised as an effective, ecofriendly adsorbent-photocatalyst for treating cationic dye-contaminated wastewaters. Abstract: The mixture of adsorption and photodegradation processes is definitely an successful approach for the removal of dye contaminants from water, which can be motivating the development of novel adsorbent-photocatalyst supplies for wastewater treatment. Herein, novel nanocomposite porous beads were created applying titanium dioxide (TiO2 ) nanotubes embedded in a sodium alginate (SA)/polyvinylpyrrolidone (PVP) matrix working with calcium chloride solution as a crosslinker. The ready nanocomposite beads’ performance was examined as an adsorbent-photocatalyst for the breakdown of methylene blue in aqueous solutions. Various operation aspects influencing the dye decomposition method, such as photocatalyst dosage, illumination time, light intensity, and stability have been investigated. The findings demonstrated that the removal activity on the beads changed with the TiO2 weight ratio inside the composite. It was located that SA/PVP/TiO2 -3 nanocomposite beads presented the greatest deterioration efficiency for methylene blue dye (98.9 ). The cycling ability and reusability of your prep.
