Hybrid ceramic beads synthesized from natural minerals and titanium dioxide for cleaning wastewater was written by Sata, Akiyoshi;Hirose, Masanao;Kurawaki, Junichi;Kusumoto, Yoshifumi;Hayakawa, Katumitu. And the article was included in Research Journal of Chemistry and Environment in 2006.Category: pyridine-derivatives This article mentions the following:
Porous hybrid ceramic beads were synthesized by burning at 1090°C in a reducing atm. They consisted of the natural mineral graphite silica (GS), the pyroclastic deposit “shirasu” and titanium dioxide. The beads bleached aqueous solutions of the dyes rhodamine B, acridine orange, methyl orange and methylene blue and degraded the surfactant dodecylpyridinium bromide and humic acid. The rate of dye decolorization was monitored using absorption spectra under UV irradiation and in the dark. The performance of repeatedly reused ceramic beads was comparable to that of new ceramic beads for decolorizing the dye solutions The rates for ceramic beads with different components and structures were compared. The effects of anatase titanium oxide on the ceramic surface and UV irradiation were not clear. The ceramic beads performed well when used to decolorize cattle urine pretreated with microorganisms. In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4Category: pyridine-derivatives).
1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. Pyridine has a conjugated system of six π electrons that are delocalized over the ring. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. One of the examples of pyridines is the well-known alkaloid lithoprimidine, which is an A3 adenosine receptor antagonist and N,N-dimethylaminopyridine (DMAP) analog, commonly used in organic synthesis.Category: pyridine-derivatives