Katowah Dina F, Saleh Sayed M, Alqarni Sara A, Ali Reham, Mohammed Gharam I, Hussein Mahmoud A
Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, P.O. Box 16722, Makkah, 21955, Saudi Arabia.
Department of Chemistry, College of Science, Qassim University, Buraidah, 51452, Saudi Arabia.
Sci Rep. 2021 Mar 3;11(1):5056. doi: 10.1038/s41598-021-84540-y.
A unique network core-shell hybrid design-based cross-linked polyaniline (CPA), which was coated with CuO nanoparticles (NPs) and decorated with nitrogen-doped SWCNT/GO/cellulose N-SWCNTS-GO-CE, has been fabricated using the oxidative polymerization technique. This hybrid nanocomposite shows excellent photocatalytic degradation and an acceptable adsorption capability for Methyl Orange (MO) dye in aqueous solutions with a very slight effect for the N-SWCNTS-GO-CE CuO component. The prepared nanocomposites were used for the removal of a carcinogenic and noxious dye, Methyl Orange, from aqueous samples under various adsorption conditions. Approximately 100% degradation of 10 mg/L of Methylene orange dye was observed within 100 min at pH 6.0 using 50 mg/L CPA/N-SWCNTS-GO-CE/CuO nanocomposite under UV radiation. Additionally, significant factors were investigated on the degradation process including the contact time, MO initial concentration (C), solution pH, and dosage of the CuO nanocomposite. All investigated experiments were performed under UV radiation, which provided significant data for the MO degradation process. Furthermore, the recovery of the nanocomposite was studied based on the photocatalytic process efficiency. The obtained data provide the high opportunity of reusing CPA/N-SWCNTS-GO-CE/CuO nanocomposite for numerous photocatalytic processes. The CPA/N-SWCNTS-GO-CE/CuO nanocomposite was prepared via chemical oxidative copolymerization of polyaniline (PANI) with p-phenylenediamine (PPDA) and triphenylamine (TPA) in the presence of N-SWCNTS-GO-CE and CuO NPs. The morphology, structure and thermal properties of the CPA/N-SWCNTS-GO-CE/CuO nanocomposite were investigated using various techniques, including FTIR, XRD, RAMAN, SEM, MAP, EDX, TEM, TGA and DTG. Therefore, CPA/N-SWCNTS-GO-CE/CuO nanocomposite can be effectively used as a convenient and reusable adsorbent to remove hazardous dye from wastewater.
采用氧化聚合技术制备了一种独特的基于网络核壳混合设计的交联聚苯胺（CPA），其表面包覆有氧化铜纳米颗粒（NPs），并用氮掺杂的单壁碳纳米管/氧化石墨烯/纤维素N-SWCNTS-GO-CE进行修饰。这种杂化纳米复合材料在水溶液中对甲基橙（MO）染料表现出优异的光催化降解性能和可接受的吸附能力，而N-SWCNTS-GO-CE CuO组分的影响非常小。所制备的纳米复合材料用于在各种吸附条件下去除水样中的致癌有害染料甲基橙。在pH 6.0条件下，使用50 mg/L的CPA/N-SWCNTS-GO-CE/CuO纳米复合材料，在紫外辐射下，100分钟内可观察到10 mg/L的亚甲基橙染料降解率约为100%。此外，还研究了包括接触时间、MO初始浓度（C）、溶液pH值和CuO纳米复合材料用量等对降解过程有重要影响的因素。所有研究实验均在紫外辐射下进行，这为MO降解过程提供了重要数据。此外，基于光催化过程效率研究了纳米复合材料的回收利用情况。所获得的数据表明CPA/N-SWCNTS-GO-CE/CuO纳米复合材料在众多光催化过程中有很高的重复使用机会。CPA/N-SWCNTS-GO-CE/CuO纳米复合材料是通过在N-SWCNTS-GO-CE和CuO NPs存在下，使聚苯胺（PANI）与对苯二胺（PPDA）和三苯胺（TPA）进行化学氧化共聚制备而成。使用包括FTIR、XRD、RAMAN、SEM、MAP、EDX、TEM、TGA和DTG等各种技术对CPA/N-SWCNTS-GO-CE/CuO纳米复合材料的形貌、结构和热性能进行了研究。因此，CPA/N-SWCNTS-GO-CE/CuO纳米复合材料可有效地用作一种方便且可重复使用的吸附剂，用于去除废水中的有害染料。
