In situ growth synthesis of Cu-BTC MOF as efficient adsorbent forelectrochemical detection of ۴-nitrophenol

Herein we report the one-step in situ growth of Cu-BTC metal-organic framework (MOF) for the firsttime. The oxidation of copper substrate to Cu۲+ ions and their reaction with the organic ligands isperformed simultaneously. Then the grown crystals can be easily removed from the surface by shaking.The MOF was characterized using (PXRD) X-ray diffraction analysis, field emission electronmicroscopy (FESEM), Brunauer-Emmett-Teller (BET) surface area analysis, and the thermalgravimetric analysis (TGA). Cu-BTC MOF was used to modify carbon paste (CPE/Cu-BTC) to studyits electrocatalytic performance for sensing ۴-nitrophenol (۴-NP). The results verified the suitability ofthe sensor for monitoring ۴-NP levels.