Products Cited in Publications Worldwide One-Year Water-Stable and Porous Bi(III) Halide Semiconductor with Broad-Spectrum Antibacterial Performance

One-Year Water-Stable and Porous Bi(III) Halide Semiconductor with Broad-Spectrum Antibacterial Performance

Azmy, Ali; Zhao, Xue; Angeli, Giasemi K.; Welton, Claire; Raval, Parth; Wojtas, Lukasz; Zibouche, Nourdine; Manjunatha Reddy, G. N.; Trikalitis, Pantelis N.; Cai, Jianfeng; Spanopoulos, Ioannis

DOI: PMID:

Abstract

Hybrid metal halide semiconductors are a unique family of materials with immense potential for numerous applications. For this to materialize, environmental stability and toxicity deficiencies must be simultaneously addressed. We report here a porous, visible light semiconductor, namely (DHS)Bi2I8 (DHS = [2.2.2] cryptand), which consists of nontoxic, earth-abundant elements, and is water stable for more than a year. Gas and vapor-sorption studies revealed that it can selectively and reversibly adsorb H2O and D2O at room temperature (RT) while remaining impervious to N2 and CO2. Solid-state NMR measurements and DFT calculations verified the incorporation of H2O and D2O in the mol. cages, validating the porous nature. In addition to porosity, the material exhibits broad band-edge light emission centered at 600 nm with a full width at half-maximum (FWHM) of 99 nm, which is maintained after six months of immersion in H2O. Moreover, (DHS)Bi2I8 exhibits bactericidal action against three Gram-pos. and three Gram-neg. bacteria, including antibiotic-resistant strains. This performance, coupled with the recorded water stability and porous nature, renders it suitable for a plethora of applications, from solid-state batteries to water purification and disinfection.

Keywords

water stability ; porous semiconductors ; metal halides ; antibacterial activity ; water adsorption ; gas selectivity

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Cryptand 2.2.2

A25879023978-09-898%

Cryptand 2.2.2

230.0/5g

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