负载于明胶壳聚糖水凝胶上的金属纳米复合材料作为去除毒素的催化剂。

Metal nanocomposite supported on gelatin chitosan hydrogel as a catalyst for the removal of toxins.

作者信息

Maslamani Nujud, Bakhsh Esraa M, Almutairi Razan, Alrasheedi Yasmeen, Hammad Roze, Aljohani Marwah, Akhtar Kalsoom, Al-Ghamdi Youssef O, Khan Sher Bahadar, Alharbi Metab

机构信息

Department of Physical Sciences, Chemistry Division, College of Science, Jazan University, P.O. Box.114, Jazan, 45142, Kingdom of Saudi Arabia.

Nanotechnology Research Unit, College of Science, Jazan University, P.O. Box. 114, Jazan, 45142, Kingdom of Saudi Arabia.

出版信息

Sci Rep. 2025 Jul 5;15(1):24084. doi: 10.1038/s41598-025-08503-3.

DOI:10.1038/s41598-025-08503-3

PMID:40617966

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12228713/

Abstract

In this study, a novel and effective double networks hydrogel (Gl-Cs/CuO-NiO) was fabricated using a method involving natural polymers; gelatin and chitosan along, with copper oxide and nickel oxide (CuO-NiO) nanocomposite in formaldehyde solution. The resulting hydrogel was thoroughly analyzed using SEM, XRD, and FT-IR techniques. The hydrogel was utilized as a catalyst for the reduction of both organic and inorganic pollutants; methyl orange (MO), crystal violet (CV) and potassium hexacyanoferrate (K[Fe(CN)]) in the presence of a reducing agent (NaBH). The Gl-Cs /CuO-NiO hydrogel exhibited performance in reducing the targeted pollutants, which took 120, 28 and 30 s for MO, CV and K[Fe(CN)], respectively. Moreover, the catalytic efficiency of the hydrogel was studied for MO by adjusting its concentrations, varying the reducing agent concentration and altering the amount of hydrogel. Lastly, the efficiency of the Gl-Cs/CuO-NiO hydrogel was evaluated for MO removal in real samples and displayed exceptional reduction capabilities.

摘要

在本研究中，采用一种涉及天然聚合物（明胶和壳聚糖）以及在甲醛溶液中的氧化铜和氧化镍（CuO-NiO）纳米复合材料的方法，制备了一种新型且有效的双网络水凝胶（Gl-Cs/CuO-NiO）。使用扫描电子显微镜（SEM）、X射线衍射仪（XRD）和傅里叶变换红外光谱仪（FT-IR）技术对所得水凝胶进行了全面分析。该水凝胶被用作还原有机和无机污染物（甲基橙（MO）、结晶紫（CV）和铁氰化钾（K[Fe(CN)]））的催化剂，反应在还原剂硼氢化钠（NaBH）存在下进行。Gl-Cs/CuO-NiO水凝胶在还原目标污染物方面表现出一定性能，对于MO、CV和K[Fe(CN)]分别耗时120秒、28秒和30秒。此外，通过调整MO浓度、改变还原剂浓度以及改变水凝胶用量，研究了该水凝胶对MO的催化效率。最后，评估了Gl-Cs/CuO-NiO水凝胶在实际样品中去除MO的效率，结果显示其具有出色的还原能力。