Batch Reactor vs. Microreactor System for Efficient AuNP Deposition on Activated Carbon Fibers

Materials

Tomasz Tokarski¹  Marek Wojnicki²  Magdalena Luty-Błocho²  Krzysztof Fitzner²  Volker Hessel³ 

[1] Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, al. A. Mickiewicza 30, 30-059 Kraków, Poland;Faculty of Non-Ferrous Metals, AGH University of Science and Technology, al. A. Mickiewicza 30, 30-059 Krakow, Poland;School of Chemical Engineering and Advanced Materials, University of Adelaide, Adelaide, SA 5005, Australia;

关键词: gold nanoparticels;    activated carbon fibers;    batch reactor;    microreactor system;   

DOI  :  10.3390/ma14216598

来源: DOAJ

【 摘 要 】

The process of noble metals ions recovery and the removal small fraction of nanoparticles from waste solution is an urgent topic not only from the economic but also ecology point of view. In this paper, the use of activated carbon fibers (ACF) as a “trap” for gold nanoparticles obtained by a chemical reduction method is described. The synthesized nanoparticles were stabilized either electrostatically or electrosterically and then deposited on carbon fibers or activated carbon fibers. Moreover, the deposition of metal on fibers was carried out in a batch reactor and a microreactor system. It is shown, that process carried out in the microreactor system is more efficient (95%) as compared to the batch reactor and allows for effective gold nanoparticles removal from the solution. Moreover, for similar conditions, the adsorption time of the AuNPs on ACF is shortened from 11 days for the process carried out in the batch reactor to 2.5 min in the microreactor system.

【 授权许可】

Unknown