Fluorescent conjugated microporous polymer (CMP) derived sensor array for multiple Organic/Inorganic contaminants detection

• Published in: Sensors and actuators. B, Chemical Vol. 320; p. 128448
• Main Authors: Gao, Ruru, Zhao, Wei, Qiu, Qian, Xie, Aming, Cheng, Siyao, Jiao, Yingzhi, Pan, Xihao, Dong, Wei
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 01-10-2020; Elsevier Science Ltd
• Subjects: Fluorescence; Fluorescent sensor array; Inorganic contaminants; Ion recognition; Metal ions; Organics detection; Palladium; Pollution detection; Principal components analysis; Sensor arrays; Sensors; Solvatochromic effect; Sulfonated conjugated microporous polymers; Water pollution; Organics detection; Sulfonated conjugated microporous polymers; Ion recognition; Solvatochromic effect; Fluorescent sensor array
• ISSN: 0925-4005; 1873-3077
• DOI: 10.1016/j.snb.2020.128448

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•Sulfonated conjugated microporous polymer (S-CMP) with high fluorescence.•S-CMP exhibits excellent water dispersibility and obvious solvatochromic behavior.•Orthogonal sensor array for high-throughput differentiation of twelve metal ions.•Organic small molecules are differentiated by the sensor array.
The development of fluorescent sensors for highly sensitive detection of multiple environmental contaminants is highly promising, but still remains to be a challenge up to date. In this work, we provide a highly water-dispersible sulfonated conjugated microporous polymers (S-CMP) based fluorescent sensor array that can be used for high-throughput detection of multiple organic/inorganic contaminants. This S-CMP was synthesized via a two-step process, including a Pd-catalyzed coupling reaction and a sulfonation process. It is differentiated twelve metal ions using principal component analysis (PCA) on the basis of distinguished fluorescent responses of the sensor array on metal ions. Moreover, it is also identified a series of or;1;ganic solvents by this S-CMP-based sensor by virtue of its unique fluorescence-emitting and color response. This work opens up the design of sulfonate-grafted CMP in environmental pollution detection and expands the application scope of CMP.