Certainly water pollution control will play a key role in environmental health. Therefore, researchers are attempting to reduce the ecological effects of water pollution by creating restrictions in the use of chemicals or water reuse. Among all the available techniques, adsorption method attracted much attention due to the higher efficiency, cost-effectiveness and simplicity. So, in this work, novel biodegradable hydrogel based on carboxymethyl cellulose (CMC) and polyaniline (PANI) was introduced to remove toxic dyes from wastewater. The synthesis process was accomplished in two steps: free radical polymerization of acrylic acid (AA) on the CMC (0.25 g) in the presence of ammonium per sulfate (APS) as radical initiator (0.2 g) and N,N-methylene-bis-acrylamide (MBA) as crosslinker (0.1 g) at 70 °C, and after 30 min, growing PANI chains on the synthesized CMC-PAA hydrogel by radical polymerization of aniline (1.0 mL) in acidic condition (20 mL of hydrochloric acid 1.0 M) to form macro-porous conductive hydrogel (CMC-PAA-PANI). The resulted hydrogel showed high antibacterial activity and excellent biodegradability by natural soil microorganisms with decomposition to 91.7 %. Also, the final hydrogel exhibited reasonable conductivity and pH sensitivity properties.

当然，水污染控制将在环境健康中发挥关键作用。因此，研究人员正试图通过限制化学品的使用或水的再利用来减少水污染的生态影响。在所有可用的技术中，吸附方法因其更高的效率，成本效益和简便性而引起了人们的广泛关注。因此，在这项工作中，引入了基于羧甲基纤维素（CMC）和聚苯胺（PANI）的新型可生物降解水凝胶，以去除废水中的有毒染料。合成过程分两步完成：在作为自由基引发剂的过硫酸铵（APS）（0.2 g）和N，N-亚甲基-双（存在）的情况下，在CMC（0.25 g）上丙烯酸（AA）进行自由基聚合。 -丙烯酰胺（MBA）作为交联剂（0.1 g），温度为70°C，30分钟后，通过在酸性条件下（20 mL盐酸1.0 M）对苯胺（1.0 mL）进行自由基聚合，在合成的CMC-PAA水凝胶上生长PANI链，从而形成大孔导电水凝胶（CMC-PAA-PANI）。所得的水凝胶显示出高的抗菌活性和被天然土壤微生物降解的优良生物降解性，分解率高达91.7％。同样，最终的水凝胶表现出合理的电导率和pH敏感性。