A mini-review on the research progress and application of nanomaterials in electrochemiluminescent sensors in the detection of water environmental pollutants.

With the increasingly serious problem of environmental pollution, the development of new and efficient detection technology has become an urgent need. Electrochemiluminescence (ECL) sensors have attracted wide attention in environmental pollution detection due to their advantages of low cost, fast analysis speed, high sensitivity, and good selectivity. At the same time, with the rapid development of nanotechnology, nanomaterials are widely used to construct ECL sensors. Based on the different roles of nanomaterials in the construction of ECL sensors, they can be summarized as (1) nanomaterials for signal amplification; (2) ECL nanoemitters; (3) Nanomaterials as receptors for ECL resonance energy transfer. In this paper, the construction and luminescence mechanism of ECL sensors are discussed from the above three aspects. Finally, the challenges and prospects of nanomaterials ECL sensors in the field of environmental pollution detection in the future are discussed.