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采用松香提取物制备功能化多孔纳米γ-氧化铝粉末。

Preparation of functionalized porous nano-γ-AlO powders employing colophony extract.

作者信息

Sifontes Ángela B, Gutierrez Brenda, Mónaco Andrea, Yanez Andreina, Díaz Yraida, Méndez Franklin J, Llovera Ligia, Cañizales Edgar, Brito Joaquín L

机构信息

Centro de Química, Instituto Venezolano de Investigaciones Científicas, Caracas 1020-A, Venezuela.

PDVSA, Intevep, Caracas 1020-A, Venezuela.

出版信息

Biotechnol Rep (Amst). 2014 Jul 21;4:21-29. doi: 10.1016/j.btre.2014.07.001. eCollection 2014 Dec.

DOI:10.1016/j.btre.2014.07.001
PMID:28626658
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5466126/
Abstract

This study reports the synthesis of porous nano alumina employing carboxylato-alumoxanes [Al(O) (OH) (OCR) ] as precursors for controlling the pore size, pore size distribution and porosity of the alumina, using a new process ecofriendly. The carboxylato-alumoxanes was prepared by the reaction of boehmite with carboxylic acids. The boehmite was obtained by the hydrolysis of aluminum alkoxide in an aqueous solution. The colophony extract is employed as a source of carboxylic acids. The materials were characterized, using XRD, TGA, N physical adsorption, SEM, TEM, NMR and FTIR. A mechanism was proposed for the formation of the synthesized structures. TEM measurements confirmed particle size ranged from 5 to 8 nm.

摘要

本研究报道了采用羧基铝氧烷[Al(O)(OH)(OCR)]作为前驱体来控制氧化铝的孔径、孔径分布和孔隙率，通过一种新型环保工艺合成多孔纳米氧化铝。羧基铝氧烷是由勃姆石与羧酸反应制备而成。勃姆石通过醇铝在水溶液中的水解获得。松香提取物用作羧酸的来源。使用X射线衍射（XRD）、热重分析（TGA）、N物理吸附、扫描电子显微镜（SEM）、透射电子显微镜（TEM）、核磁共振（NMR）和傅里叶变换红外光谱（FTIR）对材料进行了表征。提出了合成结构形成的机理。透射电子显微镜测量证实颗粒尺寸范围为5至8纳米。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/f866f2d24ef4/gr10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/cf924f945e78/fx1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/ca3171125ea7/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/a69f08cb8b43/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/903136ccdebc/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/077cde283971/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/b968c2564200/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/89037f625edf/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/28a7a0e66dc1/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/7d6549ad4f73/gr8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/b0444a0cd156/gr9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/f866f2d24ef4/gr10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/cf924f945e78/fx1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/ca3171125ea7/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/a69f08cb8b43/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/903136ccdebc/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/077cde283971/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/b968c2564200/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/89037f625edf/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/28a7a0e66dc1/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/7d6549ad4f73/gr8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/b0444a0cd156/gr9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d806/5466126/f866f2d24ef4/gr10.jpg

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