Fast, low-cost preparation of hackmanite minerals with reversible photochromic behavior using a microwave-assisted structure-conversion method

José M. Carvalho; Isabella Norrbo; Rômulo A. Ando; Hermi F. Brito; Márcia C. A. Fantini; Mika Lastusaari

doi:10.1039/C8CC03033B

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Fast, low-cost preparation of hackmanite minerals with reversible photochromic behavior using a microwave-assisted structure-conversion method†

José M. Carvalho,

^a Isabella Norrbo,

^b Rômulo A. Ando,

^c Hermi F. Brito,

^c Márcia C. A. Fantini

^a and Mika Lastusaari

*^bd

Author affiliations

* Corresponding authors

^a University of São Paulo, Institute of Physics, São Paulo-SP, Brazil

^b University of Turku, Department of Chemistry, Turku, Finland
E-mail: miklas@utu.fi

^c University of São Paulo, Institute of Chemistry, São Paulo-SP, Brazil

^d Turku University Centre for Materials and Surfaces (MatSurf), Turku, Finland

Abstract

A microwave-assisted structure-conversion (MASC) method was used to obtain photochromic hackmanites (M,Na)₈Al₆Si₆O₂₄(Cl,S)₂ (M: Li, Na, and K) in a fast (12 to 20 min) one-step process. Structural conversion from Zeolite A to hackmanite minerals has been proven to be very effective through an aluminosilicate crystalline intermediate. Photochromism is observed with both UV and X-ray (CuK_α) excitation.

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Article information

DOI: https://doi.org/10.1039/C8CC03033B
Article type: Communication
Submitted: 16 Apr 2018
Accepted: 05 Jun 2018
First published: 05 Jun 2018

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Chem. Commun., 2018,54, 7326-7329

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Fast, low-cost preparation of hackmanite minerals with reversible photochromic behavior using a microwave-assisted structure-conversion method

J. M. Carvalho, I. Norrbo, R. A. Ando, H. F. Brito, M. C. A. Fantini and M. Lastusaari, Chem. Commun., 2018, 54, 7326 DOI: 10.1039/C8CC03033B

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Chemical Communications

Fast, low-cost preparation of hackmanite minerals with reversible photochromic behavior using a microwave-assisted structure-conversion method†

Abstract

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Fast, low-cost preparation of hackmanite minerals with reversible photochromic behavior using a microwave-assisted structure-conversion method

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