Rational sonochemical synthesis of S-scheme Bi2O2CO3/ZnO heterojunction for photocatalytic expelling of harmful rhodamine B dye from wastewater under natural sunlight

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2024-09-30 DOI:10.1016/j.ceramint.2024.09.407

Ali Alsalme , Khaled M.A. Elmoneim , Nagy N. Mohammed , Khairy Mohamed , M.F. Abdel-Messih , Ayman Sultan , M.A. Ahmed

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Abstract

In this novel research study, S-scheme Bi₂O₂CO₃/ZnO heterojunctions were fabricated for photocatalytic destructing of rhodamine B dye under low cost natural sunlight of 1000 W power. Spherical Bi₂O₂CO₃ nanoparticles with wide band gap energy of 3.15 eV and diameter of 26 nm were deposited onto ZnO nanoparticles in ultrasonic bath of 300 W power. Photoluminescence [PL], Mapping, N₂–adsorption–desorption isotherm, diffuse reflectance spectrum [DRS], high resolution transmission electron microscopy [HRTEM], X-ray diffraction [XRD] and energy dispersive X-ray [EDX] were employed to investigate the physicochemical characteristics of the solid specimen. PL and DRS analysis implied that introducing various proportions of Bi₂O₂CO₃ on ZnO surface enhanced the absorbability of visible light radiations and improved the charge carrier separation and transportation efficiency. The photocatalytic experimental results implied that ZnBiCO1 heterojunction containing 1 wt % Bi₂O₂CO₃ was responsible for destructing 97 % of RhB dye in 180 min. The scavenger experiments and the photoluminescence analysis of terephthalic acid revealed the production of reactive oxygen species as direct evidence for S-scheme charge transportation mechanism. The purpose of this innovative research is concerned with construction of an efficient S-scheme heterojunction with auspicious oxidative and reductive power for eliminating rhodamine B dye as cationic pollutant model.

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在自然光下合理声化学合成 S 型 Bi2O2CO3/ZnO 异质结，用于光催化去除废水中的有害罗丹明 B 染料

在这项新颖的研究中，制备了 S 型 Bi2O2CO3/ZnO 异质结，用于在 1000 W 功率的低成本自然光下光催化破坏罗丹明 B 染料。在功率为 300 W 的超声波浴中，将宽带隙能为 3.15 eV、直径为 26 nm 的球形 Bi2O2CO3 纳米粒子沉积到 ZnO 纳米粒子上。采用光致发光[PL]、制图、N2-吸附-解吸等温线、漫反射光谱[DRS]、高分辨透射电子显微镜[HRTEM]、X 射线衍射[XRD]和能量色散 X 射线[EDX]来研究固体试样的物理化学特性。PL 和 DRS 分析表明，在 ZnO 表面引入不同比例的 Bi2O2CO3 可增强对可见光辐射的吸收能力，提高电荷载流子的分离和传输效率。光催化实验结果表明，含有 1 wt % Bi2O2CO3 的 ZnBiCO1 异质结能在 180 分钟内破坏 97 % 的 RhB 染料。对苯二甲酸的清除剂实验和光致发光分析表明，活性氧的产生是 S 型电荷传输机制的直接证据。这项创新研究的目的在于构建一种具有良好氧化和还原能力的高效 S 型异质结，以消除作为阳离子污染物模型的罗丹明 B 染料。

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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.