Enabling dual-functionality material for effective anionic and cationic dye removal by using Nb2O5/MgAl-LDH nanocomposites

IF 6.6 Q1 ENGINEERING, ENVIRONMENTAL
Tarmizi Taher , Zhongliang Yu , Elisabeth Kartini Arum Melati , Andika Munandar , Rizky Aflaha , Kuwat Triyana , Yudha Gusti Wibowo , Khairurrijal Khairurrijal , Aldes Lesbani , Aditya Rianjanu
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Abstract

The development of adsorbents capable of adsorbing both anionic and cationic dyes in wastewater treatment remains a challenge. This study presents the successful fabrication of Nb2O5-MgAl layered double hydroxide (LDH) nanocomposites for the effective removal of methylene blue (MB) and Congo red (CR) dyes via a one-step hydrothermal method. Incorporating a small amount of Nb into MgAl-LDH proved to be an effective strategy for creating nanocomposite materials with dual characteristics. The material’s morphological and crystalline structures were confirmed using FESEM-EDS and XRD. Incorporating Nb during the material preparation led to a remarkable enhancement in the material’s adsorption capacity - up to 3.4-fold and 9.0-fold increases for CR and MB, respectively. The kinetic and point zero charge analysis confirmed that the adsorption of the dyes onto the adsorbent surfaces occurred via an ionic interaction mechanism. These findings offer a promising alternative for fabricating dual-functional adsorbents, enhancing the effectiveness of dye removal in wastewater treatment technologies.

利用 Nb2O5/MgAl-LDH 纳米复合材料实现有效去除阴离子和阳离子染料的双功能材料
在废水处理中,开发能够同时吸附阴离子和阳离子染料的吸附剂仍然是一项挑战。本研究通过一步水热法成功制备了 Nb2O5-MgAl 层状双氢氧化物(LDH)纳米复合材料,用于有效去除亚甲基蓝(MB)和刚果红(CR)染料。事实证明,在 MgAl-LDH 中掺入少量铌是一种有效的策略,可以制造出具有双重特性的纳米复合材料。利用 FESEM-EDS 和 XRD 确认了材料的形态和晶体结构。在材料制备过程中掺入铌可显著提高材料的吸附能力--对 CR 和 MB 的吸附能力分别提高了 3.4 倍和 9.0 倍。动力学和零点电荷分析证实,染料在吸附剂表面的吸附是通过离子相互作用机制进行的。这些发现为制造双功能吸附剂、提高废水处理技术中去除染料的效果提供了一种很有前景的选择。
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来源期刊
Journal of hazardous materials letters
Journal of hazardous materials letters Pollution, Health, Toxicology and Mutagenesis, Environmental Chemistry, Waste Management and Disposal, Environmental Engineering
CiteScore
10.30
自引率
0.00%
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0
审稿时长
20 days
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