阿尔及利亚高岭土黏土(HKDD3)固定化硫化铁的合成及对亚甲基蓝的去除效果研究

IF 1.6 4区化学 Q4 CHEMISTRY, PHYSICAL

Surface and Interface Analysis Pub Date : 2023-11-07 DOI:10.1002/sia.7268

Asma Hayoune, Hocine Akkari, Marcello Marelli, Valeria Pappalardo, Jia Yang, Muhammad Zubair

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引用次数: 0

摘要

本研究的目的是利用水热方法将阿尔及利亚高岭土粘土(高岭土Djebel Debbagh, HKDD3)与FeS纳米颗粒功能化，并探索其在可见光照射下去除亚甲基蓝的能力。成功合成了FeS - HKDD3光催化剂，并表现出良好的结晶度。采用XRD、STEM/EDS、TEM、BET、UV-vis DRS等技术对制备的光催化剂进行表征，考察其结构、形貌和光学性能。HKDD3是一种天然高岭土，呈管状，长度为500纳米至几微米，直径约为50至100纳米。硫化铁纳米颗粒以立方体聚集体的形式固定在高岭土表面。根据UV-vis DRS的发现，在可见光范围内显示出对所获得的光催化剂的强吸收，估计带隙为1.60 eV。结果表明，该材料具有较高的协同吸附-光催化降解亚甲基蓝染料的效果。

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Synthesis and characterization of iron sulfide immobilized on Algerian halloysite clay (HKDD3) with enhanced removal of methylene blue from aqueous medium

The aim of this study is to functionalize an Algerian halloysite clay (kaolin Djebel Debbagh, HKDD3) with FeS nanoparticles by employing a hydrothermal approach and exploring its ability to remove methylene blue under visible light irradiation. The FeS‐HKDD3 photocatalyst was synthesized successfully and exhibited good crystallinity. Different techniques were used to characterize the produced photocatalyst, including XRD, STEM/EDS, TEM, BET, and UV–vis DRS in order to investigate its structure, morphology, and optical performance. The HKDD3 is a natural halloysite having a tubular shape with a length ranging from 500 nm to several micrometers and a diameter that is estimated from 50 to 100 nm. The iron sulfide nanoparticles are immobilized as cube aggregates on the surface of the halloysite. The visible range displayed a strong absorption of the obtained photocatalyst, with an estimated bandgap of 1.60 eV, according to UV–vis DRS findings. The results exhibited a higher efficiency toward synergic adsorption‐photocatalytic degradation effect for methylene blue dye removal.

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来源期刊

Surface and Interface Analysis 化学-物理化学

CiteScore

3.30

自引率

5.90%

发文量

130

审稿时长

4.4 months

期刊介绍： Surface and Interface Analysis is devoted to the publication of papers dealing with the development and application of techniques for the characterization of surfaces, interfaces and thin films. Papers dealing with standardization and quantification are particularly welcome, and also those which deal with the application of these techniques to industrial problems. Papers dealing with the purely theoretical aspects of the technique will also be considered. Review articles will be published; prior consultation with one of the Editors is advised in these cases. Papers must clearly be of scientific value in the field and will be submitted to two independent referees. Contributions must be in English and must not have been published elsewhere, and authors must agree not to communicate the same material for publication to any other journal. Authors are invited to submit their papers for publication to John Watts (UK only), Jose Sanz (Rest of Europe), John T. Grant (all non-European countries, except Japan) or R. Shimizu (Japan only).