Thin-film nanocomposite forward osmosis membrane with polydopamine @ UiO-66-NH2-modified polypropylene support and its antifouling property was written by Du, Chunhui;Hu, Jintai;Chen, Fen. And the article was included in Journal of Applied Polymer Science in 2022.Synthetic Route of C9H3Cl3O3 This article mentions the following:
Polypropylene (PP) porous flat membrane is ultrathin and has high porosity, which is suitable for the support of forward osmosis (FO) membrane. However, its high hydrophobicity is its Achilles heel. Dopamine and UiO-66-NH2 were co-deposited onto the surface of PP support, and interfacial polymerization was performed to fabricate a thin-film nanocomposite (TFN) FO membrane. The reaction-generated polydopamine improved the hydrophilicity of PP membrane, and at the same time enhanced the adhering of UiO-66-NH2 to the support. The UiO-66-NH2 nanoparticles were anchored evenly on the surface of the support, which improved the H2O flux of FO membrane from 11.1 LMH (TFC, TFN-0 without UiO-66-NH2) to 20.7 LMH (TFN-0.1, with 0.1% UiO-66-NH2) using 1 mol/L NaCl as the draw solution in FO mode. Compared with TFC membrane, TFN-0.1 membrane also exhibited relative lower specific salt flux (鈭?.252) and structural parameter (鈭?79渭m). When separating Na alginate foulant, the normalized H2O flux recovery ratio of TFN-0.1 was remained 0.89, and most of the fouling was reversible, as for TFC membrane the data decreased to 0.76 after 2 cycles of operation. Probably UiO-66-NH2 modified FO membrane exhibited good permeation and antifouling property. In the experiment, the researchers used many compounds, for example, Trimesoylchloride (cas: 4422-95-1Synthetic Route of C9H3Cl3O3).
Trimesoylchloride (cas: 4422-95-1) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Synthetic Route of C9H3Cl3O3
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics