二维锌铝六方光催化降解食用色素的研制：催化性能和DFT研究

IF 5.6 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2024-12-19 DOI:10.1016/j.ceramint.2024.12.315

Sanjay Ballur Prasanna , Srujan Basavapura Ravikumar , Trishul Alanahalli Mallu , Sandeep Shadakshari , Hema Mylnahalli Krishnegowda , Jothi Ramalingam Rajabathar , Yu-Chien Lin , Mosas Vinsy Arul Thomas , Santhosh Arehalli Shivamurthy , Ren-Jei Chung

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引用次数: 0

摘要

诱惑红（AR）是一种合成食用色素，在一些食品公司的废水中发现。它被用于饮料、糖浆和速溶饮料粉末。在本研究中，成功合成了二维锌铝六方层状双氢氧化物（LDHs），并证明了它是一种有效的AR降解催化剂。在硼氢化钠（NaBH4）存在下，这些合成的LDHs对AR降解表现出更强的催化活性。准一级动力学研究表明，二维锌铝六边形LDHs对AR具有良好的催化降解活性，60 min内AR降解率可达77.03%，表明在NaBH4存在下，合成的锌铝六边形LDHs具有快速的催化效果。实验和DFT计算结果表明，表面之间存在电场，导致电子快速运动。优异的催化活性表明，锌-铝六方LDHs在有机染料废水处理中具有良好的应用前景。

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Development of 2D zinc-aluminum hexagonal LDHs for greater catalytic degradation of food colorant Allura red dye: Catalytic property and DFT studies

Allura Red (AR) is a synthetic food colorant that is found in the wastewater of several food companies. It is utilized in drinks, syrups, and instant drink powders. In this study, 2D Zinc-Aluminum hexagonal layered double hydroxides (LDHs) were successfully synthesized and demonstrated to be an effective catalyst for AR degradation. In the presence of sodium borohydride (NaBH₄), these synthesized LDHs demonstrated greater catalytic activity for AR degradation. According to the pseudo-first-order kinetic investigation, 2D Zinc-Aluminum hexagonal LDHs have excellent catalytic degradation activity toward AR. AR degradation rates can reach 77.03 % in 60 min, suggesting the fast catalytic efficacy of the resultant Zinc-Aluminum hexagonal LDHs in the presence of NaBH₄. The experimental and DFT calculation findings revealed that an electric field existed between the surfaces, resulting in rapid electron movement. The outstanding catalytic activity indicates that Zinc-Aluminum hexagonal LDHs may have a good prospective use in organic dye wastewater treatment.

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来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.