期刊
RSC ADVANCES
卷 9, 期 22, 页码 12419-12427出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ra01332f
关键词
-
资金
- Environmental Protection Department of Hubei Province [2017HB04]
- Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) [CUG170102]
Millions of tons of paper and its derivatives are annually wasted without being recycled and reused. To promote the comprehensive utilization of resources and eco-friendly preparation, waste filter paper, printer paper, and napkins were chosen as carbon sources to one-step synthesize three types of three dimensional (3D) net-like magnetic mesoporous carbon (MMC) by an eco-friendly and low-cost method. These mesoporous (3.90-7.68 nm) composites have a high specific surface area (287-423 m(2) g(-1)), well-developed porosity (0.24-0.74 cm(3) g(-1)) and abundant oxygen-containing functional groups. Compared to the other two composites, the adsorbent derived from filter paper showed the highest adsorption capacity towards methylene blue (MB) (q(max) = 332.03 mg g(-1)) and rhodamine B (RhB) (q(max) = 389.59 mg g(-1)) with a high adsorption rate (<5 min). According to the effect of pH value on adsorption capacity, and combining the analysis of Fourier transform infrared spectrometry and X-ray photoelectron spectroscopy, the main adsorption mechanisms can be summarized as hydrogen bonds, electrostatic interactions, and - interaction. Besides, the occurrence of redox reactions between Fe2+/Fe-0 and dye cannot be ignored. Finally, experiments on reusability were performed. They showed that the 3D net-like MMC could be easily regenerated and still maintained a removal efficiency of above 80% for RhB and 90% for MB after five cycles.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据