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通过原位合成嵌入葡糖胺/藻酸盐纳米复合材料中的金纳米颗粒实现增强的催化还原。

Enhanced catalytic reduction through in situ synthesized gold nanoparticles embedded in glucosamine/alginate nanocomposites.

作者信息

Dang Chi-Hien, Nguyen Le-Kim-Thuy, Tran Minh-Trong, Le Van-Dung, Ty Nguyen Minh, Pham T Ngoc Han, Vu-Quang Hieu, Chi Tran Thi Kim, Giang Tran Thi Huong, Tu Nguyen Thi Thanh, Nguyen Thanh-Danh

机构信息

Institute of Chemical Technology, Vietnam Academy of Science and Technology, 1A, TL29, Thanh Loc Ward, District 12, Ho Chi Minh City, Vietnam.

Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay District, Hanoi, Vietnam.

出版信息

Beilstein J Nanotechnol. 2024 Oct 4;15:1227-1237. doi: 10.3762/bjnano.15.99. eCollection 2024.

DOI:10.3762/bjnano.15.99
PMID:39376727
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11457073/
Abstract

This study introduces a highly efficient and straightforward method for synthesizing gold nanoparticles (AuNPs) within a glucosamine/alginate (GluN/Alg) nanocomposite via an ionotropic gelation mechanism in aqueous environment. The resulting nanocomposite, AuNPs@GluN/Alg, underwent thorough characterization using UV-vis, EDX, FTIR, SEM, TEM, SAED, and XRD analyses. The spherical AuNPs exhibited uniform size with an average diameter of 10.0 nm. The nanocomposites facilitated the recyclable reduction of organic dyes, including 2-nitrophenol, 4-nitrophenol, and methyl orange, employing NaBH as the reducing agent. Kinetic studies further underscored the potential of this nanocomposite as a versatile catalyst with promising applications across various industrial sectors.

摘要

本研究介绍了一种高效且简便的方法，可通过离子凝胶化机制在水环境中于葡糖胺/藻酸盐（GluN/Alg）纳米复合材料内合成金纳米颗粒（AuNPs）。所得的纳米复合材料AuNPs@GluN/Alg通过紫外可见光谱、能谱分析、傅里叶变换红外光谱、扫描电子显微镜、透射电子显微镜、选区电子衍射和X射线衍射分析进行了全面表征。球形AuNPs呈现出均匀的尺寸，平均直径为10.0纳米。该纳米复合材料利用硼氢化钠作为还原剂，促进了包括2-硝基苯酚、4-硝基苯酚和甲基橙在内的有机染料的可循环还原。动力学研究进一步强调了这种纳米复合材料作为一种通用催化剂的潜力，在各个工业领域具有广阔的应用前景。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8101/11457073/8e5811b8cf46/Beilstein_J_Nanotechnol-15-1227-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8101/11457073/09a7f3e5f0c3/Beilstein_J_Nanotechnol-15-1227-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8101/11457073/355186b5192b/Beilstein_J_Nanotechnol-15-1227-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8101/11457073/7eca557f3dae/Beilstein_J_Nanotechnol-15-1227-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8101/11457073/48667643d5b7/Beilstein_J_Nanotechnol-15-1227-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8101/11457073/683a789d68f8/Beilstein_J_Nanotechnol-15-1227-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8101/11457073/8e5811b8cf46/Beilstein_J_Nanotechnol-15-1227-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8101/11457073/09a7f3e5f0c3/Beilstein_J_Nanotechnol-15-1227-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8101/11457073/355186b5192b/Beilstein_J_Nanotechnol-15-1227-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8101/11457073/7eca557f3dae/Beilstein_J_Nanotechnol-15-1227-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8101/11457073/48667643d5b7/Beilstein_J_Nanotechnol-15-1227-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8101/11457073/683a789d68f8/Beilstein_J_Nanotechnol-15-1227-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8101/11457073/8e5811b8cf46/Beilstein_J_Nanotechnol-15-1227-g007.jpg

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