Methylene blue dye degradation characteristics of BiFeO3-graphene-LiNbO3 ternary nanocomposites

IF 8.6 2区工程技术 Q1 ENERGY & FUELS

Sustainable Materials and Technologies Pub Date : 2025-03-02 DOI:10.1016/j.susmat.2025.e01331

S. Vidhya , Yathavan Subramanian , J. Gajendiran , S. Gokul Raj , Bharath Sabarish V.C. , A. Durairajan , Minh Thang Le , Ukashat Mamudu , G. Ramesh Kumar , J. Kishor Kumar

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Abstract

BiFeO₃-Graphene-LiNbO₃ ternary nanocomposites has been synthesized using wet chemical method for the first time. The existence of ternary entities chosen for the preparation of composite matrix has been ascertained from the conventional analytical tools like XRD, SEM & TEM, XPS and Raman measurements. Addition of ABO₃ type dielectric materials namely BiFeO₃ and LiNbO₃ over graphene matrix found have improved the photocatalytic behaviour of synthesized ternary composites, especially in degrading methylene blue effluent within 120 min for the graphene loaded sample with a concentration of 0.025 and exhibits maximum degradation efficiency of 88 % over the other graphitic concentrations studied. Hence, this study indicates that the optimum concentration of graphene required for enhancing methylene blue dye degradation in similar intervals of time stands at 0.025 for BiFeO₃-Graphene-LiNbO₃ photocatalyst. The other studies substantiating the present conclusive evidence is also appended in this work.

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bifeo3 -石墨烯- linbo3三元复合材料降解亚甲基蓝染料的特性

本文首次采用湿化学方法合成了bifeo3 -石墨烯- linbo3三元复合材料。采用XRD、SEM、amp等常规分析手段，确定了制备复合基体所选用三元实体的存在性；TEM， XPS和拉曼测量。在石墨烯基体上添加ABO3型介电材料BiFeO3和LiNbO3改善了合成三元复合材料的光催化性能，特别是在120分钟内降解浓度为0.025的石墨烯负载样品的亚甲基蓝废水，与其他石墨浓度相比，降解效率最高达到88%。因此，本研究表明，对于bifeo3 -石墨烯- linbo3光催化剂，在相同的时间间隔内，提高亚甲基蓝染料降解所需的最佳石墨烯浓度为0.025。其他研究证实了目前的结论性证据，也附在这项工作。

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来源期刊

Sustainable Materials and Technologies Energy-Renewable Energy, Sustainability and the Environment

CiteScore

13.40

自引率

4.20%

发文量

158

审稿时长

45 days

期刊介绍： Sustainable Materials and Technologies (SM&T), an international, cross-disciplinary, fully open access journal published by Elsevier, focuses on original full-length research articles and reviews. It covers applied or fundamental science of nano-, micro-, meso-, and macro-scale aspects of materials and technologies for sustainable development. SM&T gives special attention to contributions that bridge the knowledge gap between materials and system designs.