Rapid Determination of Mercury Ions in Environmental Water Based on an N-Rich Covalent Organic Framework Potential Sensor

<div>TEM images of COF<sub>TFPB-TZT</sub> (a–c) and COF<sub>TFPB-TZT</sub>/Hg<sup>2+</sup> (d–f) at different magnifications. SEM images of bare GPE (g), GPE/COF<sub>TFPB-TZT</sub> (h), and GPE/COF<sub>TFPB-TZT</sub>/Hg<sup>2+</sup> (i).</div>

International Journal of Chemical Engineering

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Figure 1

Figure 1: Rapid Determination of Mercury Ions in Environmental Water Based on an N-Rich Covalent Organic Framework Potential Sensor 