Abstract In this work, we developed a green strategy for the fabrication of bio-based gelatin/dextrin semi-interpenetrating network (Gel-dex-cl-polyAAm) and carbon quantum dots (CQDs) nanocomposite (CQDs/Gel-dex-cl-polyAAm) for the detection of tannic acid and removal of eosin yellow dye present in water sample. The synthesis of semi-interpenetrating network (semi-IPN) was done under hot air reaction conditions using acrylamide and N,N′-methylenbisacrylamide monomer-crosslinker system. The maximum swelling response of the synthesized semi-IPN was found to be 597% after optimizing all the process parameters. The nanocomposite was derived through in-situ incursion of carbon quantum dots inside the crosslinked matrix of semi-IPN and it was capable of detecting the presence of tannic acid, selectively in wastewater through fluorescence quenching analysis. Maximum quenching efficiency was observed to be 98%. The synthesized devices were also found to be an effective absorbent for the removal of eosin yellow dye from contaminated water. Maximum dye removal potential in case of nanocomposite was found to be 92%. Adsorption isotherm and kinetics studies indicated the applicability of flory huggin's adsorption isotherm along with 2nd order kinetics. The industrial applicability of the samples was depicted from regeneration and reusability experimental essay.

中文翻译：

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基于双功能明胶/糊精混合骨架的荧光化学传感器，用于检测单宁酸和去除曙红黄染料

摘要 在这项工作中，我们开发了一种用于制造生物基明胶/糊精半互穿网络 (Gel-dex-cl-polyAAm) 和碳量子点 (CQDs) 纳米复合材料 (CQDs/Gel-dex-cl- polyAAm) 用于检测单宁酸和去除水样中存在的曙红黄色染料。使用丙烯酰胺和N,N'-亚甲基双丙烯酰胺单体-交联剂体系在热空气反应条件下合成半互穿网络（semi-IPN）。在优化所有工艺参数后，发现合成的半 IPN 的最大溶胀响应为 597%。该纳米复合材料是通过碳量子点原位侵入半 IPN 的交联基体而获得的，它能够检测单宁酸的存在，通过荧光猝灭分析选择性地在废水中。观察到最大淬火效率为 98%。还发现合成的装置是从污染水中去除曙红黄色染料的有效吸收剂。发现纳米复合材料的最大染料去除潜力为 92%。吸附等温线和动力学研究表明 flory Huggin 的吸附等温线以及二级动力学的适用性。样品的工业适用性通过再生和可重用性实验文章进行描述。吸附等温线和动力学研究表明 flory Huggin 的吸附等温线以及二级动力学的适用性。样品的工业适用性通过再生和可重用性实验文章进行描述。吸附等温线和动力学研究表明 flory Huggin 的吸附等温线以及二级动力学的适用性。样品的工业适用性通过再生和可重用性实验文章进行描述。