Dispersion of thulium-yttria nanoparticles to build up smart structures
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2021
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Materials Today Communications
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The development of new materials for radiation dosimetry is a challenge to assure quality improvement practices related to radiation protection concept. On this context, colloidal stability provides conditions to build up smart structured materials from bottom-up perspective. The present work reports zeta potential characterization of thulium-yttria nanoparticles in aqueous medium. Thulium-yttria nanoparticles formed by a relative low temperature hydrotermal synthesis were characterized by XRD, PCS, and SEM. The stability of particles in aqueous medium was evaluated by electrophoretic mobility measurements, followed by zeta potential calculation. The results revealed that the isoelectric point of thulium-yttria suspensions shifted in accordance with thulium concentration from pH 8.5 (“pure” yttria) to pH 9.2 (2at.%Tm). Besides, most suspensions could be stabilized at pH 10.5, presenting zeta potential values around 30 mV. These results are substantial parameters to advance toward new materials for radiation dosimetry.
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SANTOS, S.C.; RODRIGUES JUNIOR, O.; CAMPOS, L.L. Dispersion of thulium-yttria nanoparticles to build up smart structures. Materials Today Communications, v. 26, p. 1-7, 2021. DOI: 10.1016/j.mtcomm.2020.101749. Disponível em: http://repositorio.ipen.br/handle/123456789/32061. Acesso em: 20 Mar 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.