Water contamination by toxic heavy metal ions and dyes remains a serious public health problem for humans, so attention on specific methods and technologies to remove heavy metal ions and dyes from wastewaters/aqueous solutions are desired. Numerous adsorbents have been reported for the removal of heavy metal ions/dyes from wastewaters/aqueous solutions. Polyaniline (PANI) and its derivatives, as conducting polymers, are good adsorbents to remove various kinds of heavy metal ions and dyes from wastewaters/aqueous solutions. The nanoadsorbents based on PANI and its derivatives have received much consideration, and are extensively reported in literature. This review focuses on the PANI and its derivatives based on nanoadsorbents for water purification. Various types of these nanoadsorbents used for the removal of heavy metal ions/dyes from wastewaters/aqueous solutions are also briefly compared in this review.

有毒的重金属离子和染料对水的污染仍然是人类面临的严重公共卫生问题，因此需要关注从废水/水溶液中去除重金属离子和染料的特定方法和技术。已经报道了许多用于从废水/水溶液中去除重金属离子/染料的吸附剂。聚苯胺（PANI）及其衍生物作为导电聚合物，是从废水/水溶液中去除各种重金属离子和染料的良好吸附剂。基于PANI及其衍生物的纳米吸附剂已经受到了广泛的考虑，并在文献中得到了广泛的报道。这篇综述集中于基于水净化的纳米吸附剂的PANI及其衍生物。