Nanofiltration membrane with high flux and oil rejection using graphene oxide/β-cyclodextrin for produced water reuse was written by Al-Gamal, Anwar Q.;Saleh, Tawfik A.;Alghunaimi, Fahd I.. And the article was included in Materials Today Communications in 2022.COA of Formula: C9H3Cl3O3 This article mentions the following:
A nanofiltration membrane with a high affinity to water and high rejection of salts and hydrocarbons was developed by intercalating a supramol. compound, graphene oxide with β-cyclodextrin (GO-beta-CD), into its layer of separation The GO-beta-CD membranes were synthesized by interfacial polymerization of an aqueous solution of (GO-beta-CD)/piperazine with an organic solution of 1, 3, 5-benzenetricarbonyl trichloride on porous substrates of polysulfone (PSf). Fourier transform IR spectroscopy (FTIR), field-emission scanning electron microscope (SEM), energy dispersive x-ray(EDX), and at. force microscope (AFM) analyses were applied to confirm the successful incorporation of GO-beta-CD into the rejection layer of the synthesized membrane and analyze the morphol., surface characteristics, and structure of the membrane surface. The hydrophilicity and porosity of the GO-beta-CD-embedded membranes were greatly enhanced and were confirmed by the contact angle decline and permeability enhancement. The collective results and analyses showed that the permeability, salt rejection and oil separation were significantly enhanced by the addition of GO-beta-CD. The prepared membranes were featured with hydrocarbons separation efficiency of about 100%, divalent salt rejection of about 89% and monovalent salt rejection of about 74%. The fluxes of the produced membranes were 80% greater than NF bare membranes. Addnl., the GO-beta-CD membranes were stable under a long-trail filtration of 15 h and exhibited excellent mech. and performance stability. The proposed membranes with excellent stability, high flux, salt rejection and oil rejection are highly promising for practical applications such as water desalination. In the experiment, the researchers used many compounds, for example, Trimesoylchloride (cas: 4422-95-1COA of Formula: C9H3Cl3O3).
Trimesoylchloride (cas: 4422-95-1) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications.While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available. Alkyl chlorides readily undergo attack by nucleophiles.COA of Formula: C9H3Cl3O3
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics