Efficiency estimative and characterization of nickel ferrite nanoparticles produced by sol-gel modified by ICR cross-linked technique
| Autor: | Adaildo G. D'Assuncao, Samanta Mesquita de Holanda, João Bosco Lucena de Oliveira, Isaac Barros Tavares da Silva |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Chitosan application Nanoparticle Ionic bonding 02 engineering and technology 010402 general chemistry 01 natural sciences Ion law.invention Chitosan chemistry.chemical_compound law General Materials Science Calcination Sol-gel Mechanical Engineering Sol-gel technique Ferrite nanoparticles 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences chemistry Chemical engineering Mechanics of Materials Nickel ferrite Particle-size distribution Ionic Coordination Reaction (ICR) Glutaraldehyde 0210 nano-technology |
| Zdroj: | Repositório Institucional da UFRN Universidade Federal do Rio Grande do Norte (UFRN) instacron:UFRN |
| ISSN: | 0167-577X |
| DOI: | 10.1016/j.matlet.2019.07.022 |
| Popis: | This paper describes nickel ferrite (NiFe2O4) synthesis by sol-gel modified by Ionic Coordination Reaction (ICR) cross-linked technique according to nitrate concentration on organic based solution, aiming a reduction in losses associated to production process. Chitosan is used to increase the coordination between the ions along with chelate agent glutaraldehyde, used to form the gel in sol-gel technique. Calcination process was also applied, with temperature of 1100 °C, 10 °C/min step for 10 h, to eliminate organic composes and obtain NiFe2O4 with particles over 300 nm diameter. The obtained efficiency results show that A03 (120 g/L) sample has better final efficiency between the proposed concentrations, reaching a 57.39% value with 95.86% purity, estimated by XRD and EDS. SEM was also performed, and confirmed size distribution based on XRD results, presenting homogeneous morphology along with narrow particle size distribution. |
| Databáze: | OpenAIRE |
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