用于吸附水中重金属离子的多巴胺改性蚕丝纤维素粉末

IF 3 4区 工程技术 Q3 CHEMISTRY, PHYSICAL
Xiaoyu Han, Yunli Wang, Weilin Xu
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引用次数: 0

摘要

随着工业化进程的加快,重金属离子对水资源的污染问题日益严重。本研究采用多巴胺改性蚕丝纤维素粉末吸附水中的重金属离子。对改性丝纤维素粉末进行了一系列测试,包括 L 值、可见光吸收、X 射线光电子能谱、扫描电子显微镜和粒度分析。结果表明,pH = 6 时对重金属离子的吸附效果最好,对 Cu2+、Cd2+ 和 Ni2+ 的吸附量分别为 115.8、60 和 60 mg/g。改性蚕丝纤维素粉末对 Cu2+ 的吸附符合 Langmuir 型吸附等温线模型和伪秒阶动力学模型。该研究为天然蚕丝纤维素粉末在水中重金属离子吸附中的应用提供了新的思路。 图文摘要
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Dopamine-modified silk fibroin powder for adsorption of heavy metal ions in water

Dopamine-modified silk fibroin powder for adsorption of heavy metal ions in water

With increasing industrialization, the pollution of water resources by heavy metal ions has become an increasingly serious problem. In this study, dopamine-modified silk fibroin powder was used for the adsorption of heavy metal ions in water. A series of tests, including L value, visible light absorption, X-ray photoelectron spectroscopy, scanning electron microscopy, and particle size analysis, were performed on the modified silk fibroin powder. The results showed that the adsorption of heavy metal ions was most effective at pH = 6, and the adsorption effects of Cu2+, Cd2+, and Ni2+ were 115.8, 60, and 60 mg/g, respectively. The adsorption of Cu2+ by the modified silk fibroin powder conformed to Langmuir-type adsorption isotherm model and pseudo-second-order kinetic model. This study provides new insight for the application of natural silk fibroin powder for the adsorption of heavy metal ions in water.

Graphical abstract

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来源期刊
Adsorption
Adsorption 工程技术-工程:化工
CiteScore
8.10
自引率
3.00%
发文量
18
审稿时长
2.4 months
期刊介绍: The journal Adsorption provides authoritative information on adsorption and allied fields to scientists, engineers, and technologists throughout the world. The information takes the form of peer-reviewed articles, R&D notes, topical review papers, tutorial papers, book reviews, meeting announcements, and news. Coverage includes fundamental and practical aspects of adsorption: mathematics, thermodynamics, chemistry, and physics, as well as processes, applications, models engineering, and equipment design. Among the topics are Adsorbents: new materials, new synthesis techniques, characterization of structure and properties, and applications; Equilibria: novel theories or semi-empirical models, experimental data, and new measurement methods; Kinetics: new models, experimental data, and measurement methods. Processes: chemical, biochemical, environmental, and other applications, purification or bulk separation, fixed bed or moving bed systems, simulations, experiments, and design procedures.
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