Structurally diverse metal-organic frameworks (MOFs) have drawn much attention as potential adsorbent for many contaminants. Herein, the present report demonstrated the enhanced dual adsorption properties of environmentally concerned carbon dioxide...
Global industrialization leads to the discharge of harmful volatile
acid vapors into the environment, causing damage to various forms
of life. Therefore, the development of rapid sensing systems for monitoring
of volatile acid vapors is of significance for a safe and clean environment.
Herein, the properties of a conjugated organic moiety combined with
a commercial economic polymer to obtain composite film are designed
for the selective detection of volatile acid vapor, viz., hydrogen
chloride. The excellent electrical behavior of the obtained film thus
allows its efficient use as a smart sensor film for the detection
of hydrogen chloride vapors with quick response, reversibility, and
selectivity with a low detection limit of 9 ppb. Taking advantage
of this remarkable behavior in response to acid vapors, we have designed
an electronic prototype for on-field applications with visual detection
of hydrogen chloride vapors in ambient conditions. Compared to the
other exploited approaches for hydrogen chloride detection, the polymer-supported
active-film-based prototype is simple, portable, and cost-effective
and can be used for real-time monitoring.
The cognitive intent of a highly ordered and robust adsorbent is extremely sensible and, in this context, Covalent Organic Framework (COF) materials have significantly burgeoned their scope in diverse applications. Herein, a simple time-competent hydrothermal procedure is presented to construct a covalent framework with an ultrahigh surface area of 1428 m 2 /g that shows active adsorption of carbon dioxide (CO 2 ) at variable temperature ranges. Moreover, a facile scalably controlled post-synthetic air liquid interfacial plasma (ALIP) induced protocol is substantiated that explicitly amplifies the surface area of the pristine framework even to a higher value of 2051 m 2 /g. The post-synthetic plasma approach presented here led to the rapid enhancement of the surface area of the pristine COF by 43 %, which concurrently advances the CO 2 uptake up to 67 %. Hence, the current study may open up a new frontier in the design as well as fine-tune the properties of the covalent framework that unfolds the advanced outlook in addressing the challenges of CO 2 capture.
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