Defective Fe/Co-MOF with Abundant Oxygen Vacancies as an Efficient Oxidase Mimic for Colourimetric and Sensitive Determination of Tetracycline

A colourimetric sensor was established based on the bimetallic nanozyme D-Fe/Co-MOF. With the addition of TC, the colour of the detection system changed from blue to yellow. Based on this transformation, a colourimetric detection method for TC was proposed.