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

Publisher: ROYAL SOC CHEMISTRY

: 2018

: Chemical Communications

: CHEMICAL COMMUNICATIONS

: CHEM COMMUN

: 54

: 53

: 7326

: 7329

: 4

: 1359-7345

: 1364-548X

DOI: https://doi.org/10.1039/c8cc03033b


A microwave-assisted structure-conversion (MASC) method was used to obtain photochromic hackmanites (M,Na)(8)Al6Si6O24(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) excitation.



Last updated on 2024-26-11 at 19:12