Polydopamine-based synthesis of an In(OH)3–PDMS sponge for ammonia detection by switching surface wettability
作者： Jikui Wang , Jiahong Guo , Pengxiang Si , Wanping Cai , Yuming Wang
DOI: 10.1039/C5RA23484K
关键词: Materials science 、 Ammonia 、 Contact angle 、 Sponge 、 Wetting 、 Nanotechnology 、 Chemical engineering 、 Superhydrophilicity 、 Atmosphere 、 Covalent modification
摘要: An In(OH)3–PDMS sponge has been synthesized by covalent modification of PDA. The can switch surface wettability reversibly between superhydrophobicity and superhydrophilicity when detecting ammonia. water contact angle changes from 141.5° to 0° after storage in an ammonia atmosphere, which means responsive switch. minimum NH3·H2O concentration that the detected is 5% 2 h. This kind quick sensitive detector promising simply virtue conversion.
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