A novel covalent organic framework with abundant N-O-O and N-N-O sites for detection and removal of Zn2+, Cd2+, Pb2+, Cu2+, and Hg2

Here, tripolycyanamide (TPA) and 2,5-dihydroxyterephthalic acid (DDTA) were used to synthesize crystalline covalent organic framework (COF DDTA-TPA ) which was employed to detect and remove heavy metal ions (HMIs). COF DDTA-TPA has abundant N-O-O and N-N-O sites and large specific surface area, whic...

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