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Stöber method and its nuances over the years.
Dos Santos da Silva, Alan; Dos Santos, João Henrique Zimnoch.
Afiliação
  • Dos Santos da Silva A; Instituto de Química - UFRGS - Av. Bento Gonçalves, 9500 - Porto Alegre - 91501-970, Brazil.
  • Dos Santos JHZ; Instituto de Química - UFRGS - Av. Bento Gonçalves, 9500 - Porto Alegre - 91501-970, Brazil. Electronic address: jhzds@iq.ufrgs.br.
Adv Colloid Interface Sci ; 314: 102888, 2023 Apr.
Article em En | MEDLINE | ID: mdl-37001206
Some characteristics of silica-based materials, such as the control/adjustment of their physical and chemical properties, compatibility, and friendly-use synthesis methods, have held the attention of several scientific groups over the years. This condition of prominence becomes even more evident when we seek these characteristics at the micro- and/or nanoscale. Among existing methods to obtain these micro/nanomaterials, the Stöber method is the focus of this review. This method is known to enable the production of silica micro- or nanoparticles from reagents of medium-easy manipulation under mild conditions using equipment that is common in most laboratories. However, this method has many nuances that must be considered to guarantee accurate results, either in size or distribution, and to ensure result reproducibility. Thus, in this review, we discuss the effects of the primary components used in the synthesis of these materials (i.e., TEOS, ammonia, and water), as well as those of other reaction conditions, such as solvent, temperature, and ionic strength. Therefore, we discuss studies involving the synthesis and characterization of micro- and nanoparticles over the years to establish discussions between their experimental observations and proposed models. This review provides experimental observations about the synthesis of these materials, as well as discussions according to complementary and/or contradictory evidence found over the years. This review seeks to help those who intend to work with this method and provide certain key points that, in our experience, can be important to obtain desired results.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Prognostic_studies Idioma: En Revista: Adv Colloid Interface Sci Assunto da revista: QUIMICA Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Brasil País de publicação: Holanda

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Prognostic_studies Idioma: En Revista: Adv Colloid Interface Sci Assunto da revista: QUIMICA Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Brasil País de publicação: Holanda