The response and recovery time exhibit a decreasing trend with the increase of NO 2 concentration, which benefits from the increased concentration reduced time for saturation adsorption on the surface of Bi 2 O 1.22 S 1.88 .
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Tunable Synthesis of 2D Bismuth Oxyhydroxide and Oxysulfide from Solid-Liquid Interfacial Reaction for High Performance Optoelectronic Gas Sensing.
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