Advanced Functional Electroactive and Photoactive Materials for Monitoring the Environmental Pollutants

Abstract

Functional materials with attractive electronic and photoelectronic properties show great promise in various fields. In recent decades, tremendous research efforts have been devoted to the design of photoactive and electroactive materials for qualitative and quantitative analysis of environmental pollutants. This review gives a concise overview on the fundamentals and recent research progress of functional material‐based electrochemical and photoelectrochemical technology for environmental pollutant monitoring. The rational design of functional photoactive and electroactive materials with promoted electrochemical properties and basic signaling strategies for electrochemical and photoelectrochemical sensors are presented. Based on these insights, very recent achievements for electrochemical and photoelectrochemical environmental pollutant sensors are summarized from the viewpoint of various functional materials. At last, critical challenges and future research perspectives in this field are proposed and discussed to provide a backdrop for future research.

Development of an integrated approach to the selection of remediation measures and environmental technologies for their implementation

“…In further studies based on the study of factors negatively affecting the environment from the standpoint of the theory of dispersed systems [9,10,11], we suggest to develop a physical and energy scientific concept for the study of remediation measures and corresponding environmental technologies. This approach should be based on considering the parameters characterizing properties and energy state of each factor affecting the environment, grouping these parameters, building process models of environmental pollution by the influencing factor and suppressing this factor, followed by the choice of appropriate remediation measures [12,13].…”

Signal-on photoelectrochemical immunoassay for salivary cortisol based on silver nanoclusters-triggered ion-exchange reaction with CdS quantum dots

“…Since the photocurrent signal arose from the charge separation and migration upon illumination between photoactive material and electrode [8,26], the active materials play a crucial role in the PEC sensing system. With the continuous development of semiconductor nano-material, they are increasingly widely used in PEC fields, particularly quantum dots (QDs), attributed to their efficient photoelectric conversion, desirable optoelectronic property, adjustable band gap, and unique biocompatibility [27][28][29].…”

Cu(II)-Grafted Carbon Nitride Quantum Dots with High Crystallinity for Photoelectrochemical Detection Application

“…Organic pollutants in water have become a great threat to the aquatic environment and human health because of their characteristics of easy bioaccumulation in food chain and refractory degradation. , Thus, there is an urgent necessity to accurately monitor residual organic pollutants in water bodies. , Photoelectrochemical (PEC) technology over suitable photoactive materials is considered an effective strategy to the quantitative detection of organic pollutants . Undoubtedly, photoactive materials with excellent photoelectric conversion efficiency are the key premise for the PEC detection of organic pollutants .…”