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- W4362460045 abstract "Achieving convenient and accurate detection of indoor ppb-level formaldehyde is an urgent requirement to ensure a healthy working and living environment for people. Herein, ultrasmall In2O3 nanorods and supramolecularly functionalized reduced graphene oxide are selected as hybrid components of visible-light-driven (VLD) heterojunctions to fabricate ppb-level formaldehyde (HCHO) gas sensors (named InAG sensors). Under 405 nm visible light illumination, the sensor exhibits an outstanding response toward ppb-level HCHO at room temperature, including the ultralow practical limit of detection (pLOD) of 5 ppb, high response (Ra/Rg = 2.4, 500 ppb), relatively short response/recovery time (119 s/179 s, 500 ppb), high selectivity, and long-term stability. The ultrasensitive room temperature HCHO-sensing property is derived from visible-light-driven and large-area heterojunctions between ultrasmall In2O3 nanorods and supramolecularly functionalized graphene nanosheets. The performance of the actual detection toward HCHO is evaluated in a 3 m3 test chamber, confirming the practicability and reliability of the InAG sensor. This work provides an effective strategy for the development of low-power-consumption ppb-level gas sensors." @default.
- W4362460045 created "2023-04-05" @default.
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- W4362460045 date "2023-03-31" @default.
- W4362460045 modified "2023-10-14" @default.
- W4362460045 title "Large-Area and Visible-Light-Driven Heterojunctions of In<sub>2</sub>O<sub>3</sub>/Graphene Built for ppb-Level Formaldehyde Detection at Room Temperature" @default.
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- W4362460045 doi "https://doi.org/10.1021/acsami.3c00218" @default.
- W4362460045 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36999948" @default.
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