Currently, conducting polymers have attracted tremendous attention, due to their unique characteristics and significant applications, such as ionic conductivity, electroanalytical technique optical transparency, metal-like conductivity, environmental pollutant-sensitive materials, and mechanical flexibility. There is an urgent need to develop momentum in the utilization of conducting polymers for the preparation of special types of conducting nanocomposites from both commercial and other essential perspectives. Traditional material preparation procedures suffer from various shortcomings such as blank determination, sample preparation, calibration, need for skilled operators, time-consuming techniques, non-universal approaches, and high cost. The objective of this review article is to provide details regarding the fabrication of conducting polymer-nanoparticles (nanocomposites)-based materials for continuous and different advanced materials monitoring and other important applications. Particularly, attention has been paid toward the design, classification, and the development of nanocomposites of conducting polymers (CP) and their nanoparticles for the elimination of environmental pollutants present in our ecosystem. We primarily emphasize the significant applications and synthesis routes of conducting polymers and the nanocomposites based on them from the perspectives of biomedical, energy, photocatalysis, environmental, and sensor applications, because they all are closely related areas and have been widely explored. Moreover, we discuss some important fundamental research trends in fabrication, raw material sources, and newly developed approaches and highlight new research directions.

目前，导电聚合物因其独特的特性和重要的应用而引起了极大的关注，例如离子导电性、电分析技术的光学透明性、类金属导电性、环境污染物敏感材料和机械柔韧性。从商业和其他基本角度来看，迫切需要利用导电聚合物来制备特殊类型的导电纳米复合材料。传统的材料制备程序存在各种缺点，例如空白测定、样品制备、校准、需要熟练的操作员、耗时的技术、非通用的方法和高成本。这篇评论文章的目的是提供关于导电聚合物纳米颗粒（纳米复合材料）基材料的制造细节，用于连续和不同的先进材料监测和其他重要应用。特别是，人们关注导电聚合物 (CP) 及其纳米颗粒的纳米复合材料的设计、分类和开发，以消除我们生态系统中存在的环境污染物。我们主要从生物医学、能源、光催化、环境和传感器应用的角度强调导电聚合物和基于它们的纳米复合材料的重要应用和合成路线，因为它们都是密切相关的领域并得到了广泛的探索。而且，