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嵌入银纳米颗粒的吡啶 - 胆固醇干凝胶作为4-硝基苯酚还原的高效催化剂

Silver-Nanoparticles Embedded Pyridine-Cholesterol Xerogels as Highly Efficient Catalysts for 4-Nitrophenol Reduction.

作者信息

Shimoga Ganesh, Shin Eun-Jae, Kim Sang-Youn

机构信息

Interaction Laboratory of Advanced Technology Research Center, Korea University of Technology and Education, Cheonan-si, Chungcheongnam-do 330-708, Korea.

出版信息

Materials (Basel). 2020 Mar 25;13(7):1486. doi: 10.3390/ma13071486.

DOI:10.3390/ma13071486
PMID:32218243
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7177945/
Abstract

Two xerogels made of 4-pyridyl cholesterol (PC) and silver-nanocomposites (SNCs) thereof have been studied for their efficient reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) in the presence of aqueous sodium borohydride. Since silver doping will be effective in ethanol and acetone solvents with a PC gelator, two silver-loaded PC xerogels were prepared and successive SNCs were achieved by using an environmentally benign trisodium citrate dehydrate reducing agent. The formed PC xerogels and their SNCs were comprehensively investigated using different physico-chemical techniques, such as field emission scanning electron microscopy (FE-SEM), Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), powdered X-ray diffraction (XRD) and UV-Visible spectroscopy (UV-Vis). The FE-SEM results confirm that the shape of xerogel-covered silver nanoparticles (SNPs) are roughly spherical, with an average size in the range of 30-80 nm. Thermal degradation studies were analyzed via the sensitive graphical Broido's method using a TGA technique. Both SNC-PC (SNC-PC-X1 and SNC-PC-X2) xerogels showed remarkable catalytic performances, with recyclable conversion efficiency of around 82% after the fourth consecutive run. The apparent rate constant (k) of SNC-PC-X1 and SNC-PC-X2 were found to be 6.120 × 10 sec and 3.758 × 10 sec, respectively, at an ambient temperature.

摘要

已经研究了由4-吡啶基胆固醇（PC）及其银纳米复合材料（SNC）制成的两种干凝胶在硼氢化钠水溶液存在下将4-硝基苯酚（4-NP）高效还原为4-氨基苯酚（4-AP）的性能。由于银掺杂在含有PC凝胶剂的乙醇和丙酮溶剂中有效，因此制备了两种负载银的PC干凝胶，并使用环境友好的柠檬酸三钠脱水还原剂制备了连续的SNC。使用不同的物理化学技术，如场发射扫描电子显微镜（FE-SEM）、傅里叶变换红外（FTIR）光谱、热重分析（TGA）、粉末X射线衍射（XRD）和紫外可见光谱（UV-Vis），对形成的PC干凝胶及其SNC进行了全面研究。FE-SEM结果证实，被干凝胶覆盖的银纳米颗粒（SNP）形状大致为球形，平均尺寸在30-80nm范围内。通过使用TGA技术的灵敏图形布罗伊多方法分析热降解研究。两种SNC-PC（SNC-PC-X1和SNC-PC-X2）干凝胶均表现出显著的催化性能，在连续第四次运行后，可回收转化效率约为82%。在环境温度下，SNC-PC-X1和SNC-PC-X2的表观速率常数（k）分别为6.120×10秒和3.758×10秒。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f34/7177945/7ecc9d92691c/materials-13-01486-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f34/7177945/a4d14d1db1f5/materials-13-01486-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f34/7177945/999d96c9670b/materials-13-01486-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f34/7177945/ddf42d06f841/materials-13-01486-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f34/7177945/679b8ce25c09/materials-13-01486-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f34/7177945/567288ad6c98/materials-13-01486-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f34/7177945/88c53bacd8c0/materials-13-01486-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f34/7177945/2b1167e7b5aa/materials-13-01486-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f34/7177945/7ecc9d92691c/materials-13-01486-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f34/7177945/a4d14d1db1f5/materials-13-01486-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f34/7177945/999d96c9670b/materials-13-01486-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f34/7177945/ddf42d06f841/materials-13-01486-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f34/7177945/679b8ce25c09/materials-13-01486-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f34/7177945/567288ad6c98/materials-13-01486-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f34/7177945/88c53bacd8c0/materials-13-01486-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f34/7177945/2b1167e7b5aa/materials-13-01486-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f34/7177945/7ecc9d92691c/materials-13-01486-g008.jpg

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本文引用的文献

1
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Materials (Basel). 2020 Feb 19;13(4):925. doi: 10.3390/ma13040925.
2
Methanol Synthesis from CO: A Review of the Latest Developments in Heterogeneous Catalysis.由一氧化碳合成甲醇：多相催化最新进展综述
Materials (Basel). 2019 Nov 26;12(23):3902. doi: 10.3390/ma12233902.
3
Nanocatalytic Assemblies for Catalytic Reduction of Nitrophenols: A Critical Review.
用于催化还原硝基苯酚的纳米催化组装体：批判性评价。
Crit Rev Anal Chem. 2020;50(4):322-338. doi: 10.1080/10408347.2019.1637241. Epub 2019 Jul 13.
4
Designing Supramolecular Gelators: Challenges, Frustrations, and Hopes.设计超分子凝胶剂：挑战、挫折与希望
Gels. 2019 Mar 8;5(1):15. doi: 10.3390/gels5010015.
5
Hydroxylation of Benzene C-H Activation Using Bimetallic CuAg@g-CN.使用双金属CuAg@g-CN对苯进行羟基化反应及C-H活化
ACS Sustain Chem Eng. 2017;5(5):3637-3640. doi: 10.1021/acssuschemeng.7b00772.
6
Review on nanoparticles and nanostructured materials: history, sources, toxicity and regulations.纳米颗粒与纳米结构材料综述：历史、来源、毒性及相关法规
Beilstein J Nanotechnol. 2018 Apr 3;9:1050-1074. doi: 10.3762/bjnano.9.98. eCollection 2018.
7
Metal Catalysts for Heterogeneous Catalysis: From Single Atoms to Nanoclusters and Nanoparticles.用于多相催化的金属催化剂：从单原子到纳米团簇和纳米颗粒
Chem Rev. 2018 May 23;118(10):4981-5079. doi: 10.1021/acs.chemrev.7b00776. Epub 2018 Apr 16.
8
Nanoparticles for Catalysis.用于催化的纳米颗粒。
Nanomaterials (Basel). 2016 Jun 23;6(7):123. doi: 10.3390/nano6070123.
9
Supramolecular Hydrogelators and Hydrogels: From Soft Matter to Molecular Biomaterials.超分子水凝胶剂与水凝胶：从软物质到分子生物材料
Chem Rev. 2015 Dec 23;115(24):13165-307. doi: 10.1021/acs.chemrev.5b00299. Epub 2015 Dec 8.
10
Development, characterization, and in vitro biological performance of fluconazole-loaded microemulsions for the topical treatment of cutaneous leishmaniasis.用于皮肤利什曼病局部治疗的载氟康唑微乳剂的研制、表征及体外生物学性能
Biomed Res Int. 2015;2015:396894. doi: 10.1155/2015/396894. Epub 2015 Jan 12.