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一种简便的制备对镉离子具有优异吸附性能的海泡石矿物纳米纤维的方法。

A facile fabrication of sepiolite mineral nanofibers with excellent adsorption performance for Cd ions.

作者信息

Wang Fei, Hao Ming, Liang Jinsheng, Gao Peizhang, Zhu Maomao, Fang Baizeng, Zhang Hui, Shang Zengyao

机构信息

Key Laboratory of Special Functional Materials for Ecological Environment and Information, Hebei University of Technology, Ministry of Education Tianjin 300130 China.

Institute of Power Source and Ecomaterials Science, Hebei University of Technology Tianjin 300130 China.

出版信息

RSC Adv. 2019 Dec 4;9(69):40184-40189. doi: 10.1039/c9ra07836c. eCollection 2019 Dec 3.

DOI:10.1039/c9ra07836c
PMID:35542660
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9076242/
Abstract

In this work, sepiolite mineral nanofibers are facilely prepared by a microwave-hydrogen peroxide method, and the bulk densities of the samples are adopted to evaluate the defibering effect. The samples are systematically characterized through X-ray diffraction, scanning electron microscopy, specific surface area measurement and zeta potential determination, and the adsorptive performance for heavy metal ions in aqueous solution is studied using cadmium ions as the representative. It is found that the specific surface area and cumulative pore volume increase respectively up to 109.21 m g and 0.234 cm g under the microwave power of 400 W, while the zeta potential reaches a maximum when the pH is 5.0. The adsorption efficiency of sepiolite mineral nanofibers for cadmium ions can reach 68.6% as the optimal value. The as-fabricated sepiolite nanofibers can be regarded as a low-cost and environmentally friendly material which is a promising candidate for heavy metal ion removal from industrial wastewater.

摘要

在本工作中，采用微波 - 过氧化氢法简便地制备了海泡石矿物纳米纤维，并通过样品的堆积密度来评估解纤效果。通过X射线衍射、扫描电子显微镜、比表面积测量和zeta电位测定对样品进行了系统表征，并以镉离子为代表研究了其对水溶液中重金属离子的吸附性能。研究发现，在400 W微波功率下，比表面积和累积孔体积分别增加到109.21 m²/g和0.234 cm³/g，而zeta电位在pH为5.0时达到最大值。海泡石矿物纳米纤维对镉离子的吸附效率可达68.6%作为最优值。所制备的海泡石纳米纤维可被视为一种低成本且环保的材料，是从工业废水中去除重金属离子的有前途的候选材料。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8a9b/9076242/f187869ddac1/c9ra07836c-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8a9b/9076242/afae4c9ecadf/c9ra07836c-f1.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8a9b/9076242/30de502ab685/c9ra07836c-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8a9b/9076242/1f0fa76c98da/c9ra07836c-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8a9b/9076242/bbe195a064c2/c9ra07836c-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8a9b/9076242/c2a5f31d9843/c9ra07836c-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8a9b/9076242/f187869ddac1/c9ra07836c-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8a9b/9076242/afae4c9ecadf/c9ra07836c-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8a9b/9076242/cabd50225ed5/c9ra07836c-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8a9b/9076242/ac31f558c16b/c9ra07836c-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8a9b/9076242/30de502ab685/c9ra07836c-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8a9b/9076242/1f0fa76c98da/c9ra07836c-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8a9b/9076242/bbe195a064c2/c9ra07836c-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8a9b/9076242/c2a5f31d9843/c9ra07836c-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8a9b/9076242/f187869ddac1/c9ra07836c-f8.jpg

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