Abstract Single-responsive hydrogels will be limited in application. Therefore, the development of hydrogels with multi-stimulus response characteristics will greatly broaden its application, such as smart appliances and dye adsorption aspects. In this study, we designed a simple two-step radical polymerization method to fabricate a Poly(N-isopropylacrylanide)(PNIPAM)- graphene oxide (GO)/Polyaniline (PANI) thermosensitive conductive composite hydrogel. The synthetic material was characterized by scanning electron microscopy （SEM）, thermogravimetric analysis (TGA) and Brunauer-Emmett-Teller (BET). The tensile/compression test and infrared light response analysis show that the material has good mechanical properties and good thermal response. The as-prepared hydrogels show good applications in infrared light switching and dye selective adsorption. It provides some reference for the following hydrogel materials in the application of infrared light control switch in farmland environment and the adsorption and separation of anionic dye in sewage.

中文翻译：

---

一种简单的多功能PNIPAM-GO/PANI水凝胶制备策略及其在染料吸附和红外切换中的应用

摘要 单响应水凝胶的应用将受到限制。因此，具有多刺激响应特性的水凝胶的开发将极大地拓宽其应用，例如智能电器和染料吸附方面。在这项研究中，我们设计了一种简单的两步自由基聚合方法来制造聚（N-异丙基丙烯酰胺）（PNIPAM）-氧化石墨烯（GO）/聚苯胺（PANI）热敏导电复合水凝胶。通过扫描电子显微镜（SEM）、热重分析（TGA）和Brunauer-Emmett-Teller（BET）对合成材料进行表征。拉伸/压缩试验和红外光响应分析表明该材料具有良好的力学性能和良好的热响应。所制备的水凝胶在红外光转换和染料选择性吸附方面具有良好的应用。