Effect of lithium and sodium ions on the size and morphology of ZnO nanoparticles synthesized by a glycerol-urea route

Autor(es)

Brazuna, Lorena Portela ^[1] ; Tabuti, Thiago Galeote ^[1] ; Silva, Adrielle de Paula ^[2] ; Tada, Dayane Batista ^[2] ; Politi, Mario Jose ^{[3, 4, 5]} ; Bacani, Rebeca ^[1] ; Triboni, Eduardo Rezende ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Escola Engn Lorena, Dept Engn Quim DEQUI, Estr Municipal Campinho S-N, BR-12602810 Lorena, SP - Brazil

^[2] Univ Fed Sao Paulo, Campus Sao Jose dos Campos UNIFESP SJC, Sao Jose Dos Campos - Brazil

^[3] Inst Chem, Lab Photochem, Ave Prof Lineu Prestes 748, Sao Paulo, SP - Brazil

^[4] Inst Chem, Fast Kinet Biochem Dept, Ave Prof Lineu Prestes 748, Sao Paulo, SP - Brazil

^[5] Inst Chem, Dept Chem, Ave Prof Lineu Prestes 748, Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: NEW JOURNAL OF CHEMISTRY; v. 43, n. 48, p. 18988-18995, DEC 28 2019.
• Citações Web of Science: 0

Resumo

ZnO nanoparticles having spherical and rod shapes with high crystallinity and uniform average crystallite sizes were prepared by a new route named the glycerol-urea (GU) route. The syntheses were carried out using Zn(NO3)(2).6H(2)O and NaOH in a 3 : 1 mol ratio of G:U solution under stirring at 70 degrees C. These reactions took less than 1 hour to completion with a high mass yield. NaCl and LiCl salts were added to attempt to modulate crystallites morphology and size. The effect of LiCl led to smaller spherical particles with an average size of 11(2) nm, whereas NaCl resulted in rod-shaped ZnO nanoparticles having an average length of 44(7) nm and an average diameter of 12(2) nm; whereas GU synthesis (no salt) led to 19(3) nm nanoparticles. Detailed X-ray powder diffraction, FT-IR and UV-Vis analyses confirmed the typical wurtzite structure of the particles. Electron microscopy images (SEM and TEM) showed the morphology and size of the ZnO nanoparticles. Photoluminescence revealed different behaviors related to defects and exciton emission. (AU)

• Processo FAPESP: 17/13839-0 - Sistemas orgânicos e inorgânicos para a preparação de meso e nanoestruturas
• Beneficiário: Eduardo Rezende Triboni
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 13/08166-5 - Química em interfaces: interações de fármacos, peptídios e enzimas com membranas modelos
• Beneficiário: Iolanda Midea Cuccovia
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 17/01697-6 - Síntese e funcionalização de nanopartículas bimetálicas para aplicação na terapia fotodinâmica de câncer
• Beneficiário: Dayane Batista Tada
• Modalidade de apoio: Auxílio à Pesquisa - Regular