| Autor: |
Aboelkheir M; Programa de Engenharia Civil, Universidade São Judas Tadeu, Rua Taquari 546, São Paulo 03166-000, Brazil., Gomes F; Instituto de Macromoléculas, Professora Eloisa Mano, Centro de Tecnologia-Cidade Universitária, Av. Horacio Macedo, 2030, Bloco J. Universidade Federal de Rio de Janeiro, Rio de Janeiro 21941-598, Brazil., Meiorin C; Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), Universidad Nacional de Mar del Plata (UNMdP)-CONICET, Mar del Plata 7600, Argentina., Galdino T; UNIGRANRIO-Universidade do Grande Rio Professor José de Souza Herdy, Rio de Janeiro 25071-202, Brazil. |
| Abstrakt: |
Renewable resources constitute an extremely rich and varied set of molecules and polymers produced by natural biological activities. Within the applications of these polymers, a very important application is the use of these materials as a sorber for oils or oil spills. The advantage of these nanocomposites is the fact that they integrate different component materials and their properties into a single component material. They have several applications, ranging from environmental remediation to the development of advanced medical applications. This work proposed using magnetic polyurea composites based on an animal substrate from Tenebrio molitor larvae to perform oil spill clean-up operations under a magnetic field in the presence of 1% and 3% of magnetite to be tested as magnetic crude oil sorber. The obtained materials were characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray Diffraction (XRD), Thermogravimetric Analysis (TGA), Scanning Differential Calorimetry (DSC), and Low-Field Nuclear Magnetic Resonance (LF-NMR 1H). The sorber material is simple to prepare and inexpensive. The use of magnetite as a magnetic charge allowed for the efficient removal of oil from water with about 28 g of oil per gram of sorber. These results are very promising and encouraging for future environmental recovery studies involving magnetite and sustainable polymers. |
