کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
58964 1419429 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bottom-up preparation of gold nanoparticle-mesoporous silica composite nanotubes as a catalyst for the reduction of 4-nitrophenol
ترجمه فارسی عنوان
تهیه نانولوله های کامپوزیتی سیلیکا نانوذرات طلا به عنوان کاتالیزور برای کاهش 4 نیتروفنول
کلمات کلیدی
طلا، سیلیسیوم مزوپور، نانوتوب رویکرد پایین به بالا، کاتالیزور، کاهش 4-نیتروفنول
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
چکیده انگلیسی

Gold (Au) nanoparticle (NP)-mesoporous silica (SiO2) composite nanotubes were prepared by a bottom-up approach, in which Au NPs were anchored to the inner wall of mesoporous SiO2 tubular shells. In this composite, the agglomeration, exfoliation, and grain growth of Au NPs were restricted, and the loading and size of the catalyst NPs were easily tuned. The mesoporous shell, open ends, and one-dimensional passage of the SiO2 nanotubes all promote the diffusion of reactants, which enhanced the catalytic efficiency of this composite in the reduction of 4-nitrophenol. The Au NP-mesoporous SiO2 composite nanotubes also demonstrated good reusability, and no leaching or agglomeration of the Au NPs was observed during the catalytic reaction.

Graphical AbstractComposite nanotubes consisting of a mesoporous silica shell with gold nanoparticles anchored to their inner wall were prepared by a bottom-up approach. This compos ite exhibited high efficiency as a catalyst in the reduction of 4-nitrophenol.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Journal of Catalysis - Volume 36, Issue 7, July 2015, Pages 1117–1123
نویسندگان
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