Fe nanoparticle-functionalized ordered mesoporous carbon with tailored mesostructures and their applications in magnetic removal of Ag(i)-Reference-Cited by-同舟云学术

Fe nanoparticle-functionalized ordered mesoporous carbon with tailored mesostructures and their applications in magnetic removal of Ag(i)

Published:2024-01-01 Issue:1 Volume:63 Page:
ISSN:1605-8127
Container-title:REVIEWS ON ADVANCED MATERIALS SCIENCE
language:en
Short-container-title:

Author:

Zhang Wenjuan¹,Li Yuheng²,Ran Mengyu²,Wang Youliang³,Ding Yezhi²,Zhang Bobo²,Feng Qiancheng²,Chu Qianqian¹²,Shen Yongqian¹²,Sheng Wang¹²

Affiliation:

1. State Key Laboratory for Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology , Gansu , Lanzhou, 730050 , China

2. School of Materials Science and Engineering, Lanzhou University of Technology , Gansu , Lanzhou , 730050 , China

3. School of Mechanical and Electrical Engineering, Lanzhou University of Technology , Gansu , Lanzhou , 730050 , China

Abstract

Abstract Fe nanoparticle-functionalized ordered mesoporous carbon (Fe0/OMC) was synthesized using triblock copolymers as templates and through solvent evaporation self-assembly, followed by a carbothermal reduction. Fe0/OMC had three microstructures of two-dimensional hexagonal (space group, p6mm, Fe0/OMC-1), body centered cubic (Im3̄m, Fe0/OMC-2), and face centered cubic (Fm3̄m, Fe0/OMC-3) which were controlled by simply adjusting the template. All Fe0/OMC displayed paramagnetic characteristics, with a maximum saturation magnetization of 50.1 emu·g−1. This high magnetization is advantageous for the swift extraction of the adsorbent from the solution following the adsorption process. Fe0/OMC was used as an adsorbent for the removal of silver ions (Ag(i)) from aqueous solutions, and the adsorption capacity of Fe0/OMC-1 was enhanced by the functionalization of Fe0. Adsorption property of Fe0/OMC-1 was significantly higher than that of Fe0/OMC-2 and Fe0/OMC-3, indicating that the long and straight ordered pore channels were more favorable for adsorption, and the adsorption capacity of Ag(i) on Fe0/OMC-1 was 233 mg·g−1. The adsorption process exhibited conformity with both the pseudo-second-order kinetic model and the Freundlich model, suggesting that the dominant mechanism of adsorption involved multilayer adsorption on heterogeneous surfaces.

Publisher

Walter de Gruyter GmbH

Link

https://www.degruyter.com/document/doi/10.1515/rams-2024-0007/pdf

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