Recent progress in application of nanomaterials in analysis of emerging chemical contaminants
Emerging chemical contaminants (ECCs) represent newly identified chemical contaminants which have not been covered by routine monitoring and regulatory programs. Current research into ECCs is greatly hindered by the shortage in analytical methods due to the complex sample matrices, extremely low environmental levels, and the “emerging” nature of ECCs. Use of nanomaterials (NMs) to solve the analytical problem of ECCs is a very active research field. We have published a review paper summarizing the application of nanomaterials in analysis and monitoring of ECCs in 2014. In recent years, this field kept rapidly developing with many new materials and technologies emerging. This paper reviews recent progress in this filed. Different types of NMs and analytical techniques are covered. Notably, we pay special attention to the newly developed materials, such as metal-organic frameworks (MOFs), upconversion materials, carbon dots, and titania (TiO2) nanoparticles. We also stress the progress in emerging techniques such as surface-enhanced Raman spectroscopy (SERS) and laser desorption/ionization mass spectrometry (LDI-TOF MS). Finally, we discuss current challenges and future prospects in this field.