Synthesis of a Novel Cellulose Nanofiber-Based Composite Hydrogel with Poly(methyl methacrylate-co-methacrylic Acid) for Effective Water Removal from Liquid Fuels

• DOI: 10.1021/acs.iecr.3c02019
• Publication Date: 2024-01-25T03:27:36Z
• Authors: Fernanda Brito do...; Isadora Dias Perez; Philip Spencer Mc...; Leonardo Vasconce...; Maria Regina Wolf...; Kam Chiu Tam
• Keywords: Central composite design

Water is present in liquid fuels three different forms: dissolved, free, or emulsified, and its presence can considerably impair fuel quality by encouraging microorganism growth. This growth contributes to the generation of sludge, an increase turbidity, corrosion tanks mechanical components motor vehicles. In this context, research work proposes synthesis a nanocomposite hydrogel made poly(methyl methacrylate-co-methacrylic acid) cellulose nanofibers (CNFs) free radical polymerization for removal water from diesel. An extensive physicochemical characterization hydrogels was performed, full experimental design (22 with 3 central points) evaluated influence CNF percentages temperatures on maximum swelling degree nanocomposites. According design, only statistically significant independent variable percentage. Finally, batch tests were performed build kinetic curves based five adsorbents: CNF, poly(MMA-co-MAA), poly[(MMA-co-MAA) at 1, 2.5, 5%]. All samples highly effective removing commercial diesel short time. analysis, reached equilibrium h, while all other required 8 h. composite exceeded 80% The high efficiency nanocomposites demonstrated, suggesting potential application industrial scale, over wide range concentrations.