4.7 Article

Zeolites-containing geopolymers obtained from biomass fly ash: Influence of temperature, composition, and porosity

期刊

JOURNAL OF THE AMERICAN CERAMIC SOCIETY
卷 104, 期 2, 页码 803-815

出版社

WILEY
DOI: 10.1111/jace.17512

关键词

biomass ash; faujasite-type zeolite; geopolymer; P-type zeolite

资金

  1. Fundacao para a Ciencia e a Tecnologia
  2. Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior [88887.144642/2017-00, 88882.345219/2019-01]
  3. Conselho Nacional de Desenvolvimento Cientifico e Tecnologico [308669/2016-9]

向作者/读者索取更多资源

In this research, variations in compositional and processing parameters were explored to produce zeolites-containing geopolymers from biomass fly ash wastes. The mixture composition used in the synthesis plays a crucial role in determining the nature of zeolitic crystalline phases in the geopolymeric matrix. Different NaOH concentrations resulted in varying surface areas of faujasite-type zeolites in the geopolymers.
In this research, compositional and processing parameters were varied to obtain zeolites-containing geopolymers using mainly biomass fly ash wastes. In addition to curing temperatures, another primary factor affecting the typologies of the resulting zeolites was composition. The mixture composition used in the synthesis crucially affects the nature of the zeolitic crystalline phases in the geopolymeric matrix. Using 10 mol/L NaOH solution, faujasite-type zeolites produced in geopolymers show a surface area of similar to 100 m(2)/g (BET), while those prepared by 8 mol/L NaOH solution have a much lower surface area of similar to 19 m(2)/g.

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