Cost-effective and high-efficient lead-free Cs2NaBiCl6 photocatalyst for degradation of malachite green

IF 2.8 3区物理与天体物理 Q2 PHYSICS, CONDENSED MATTER

Physica B-condensed Matter Pub Date : 2025-03-25 DOI:10.1016/j.physb.2025.417173

Gang Zhi , Xiaohui Yang , Lahua Zhang, Xinchang Wang, Tingting Xu, Dezhi Kong, Ye Wang, Xinjian Li, Yongtao Tian

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Abstract

All inorganic lead-free halide double perovskite has great potential for high-efficient photocatalyst with the merit of low toxicity. Herein, double perovskite Cs₂NaBiCl₆ was designed as a photocatalyst for Malachite green degradation. Cs₂NaBiCl₆ was synthesized by a simple hydrochloric acid precipitation, and further employed to degrade organic dyes under ultraviolet light. The synthesized Cs₂NaBiCl₆ shows an excellent photocatalytic performance with a degradation efficiency of 99.7 % for malachite green (15 mg/L) in 25 min. Moreover, Cs₂NaBiCl₆ also exhibits good recyclability and stability. Further experiments confirm that superoxide radicals play a primary role in the photocatalytic degradation process. Our results prove that Cs₂NaBiCl₆ is a promising cost-effective and high-efficiency photocatalysts to degrade organic pollutants.

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经济高效的无铅Cs2NaBiCl6光催化剂降解孔雀石绿

全无机无铅卤化物双钙钛矿具有低毒性的优点，是一种极具潜力的高效光催化剂。本文设计了双钙钛矿Cs2NaBiCl6作为光催化剂降解孔雀石绿。采用简单的盐酸沉淀法合成了Cs2NaBiCl6，并在紫外光下对有机染料进行了降解。合成的Cs2NaBiCl6对孔雀石绿（15 mg/L）在25 min内的降解效率达到99.7%，具有良好的光催化性能，且具有良好的可回收性和稳定性。进一步的实验证实，超氧自由基在光催化降解过程中起主要作用。研究结果证明，Cs2NaBiCl6是一种极具成本效益的高效降解有机污染物的光催化剂。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physica B-condensed Matter 物理-物理：凝聚态物理

CiteScore

4.90

自引率

7.10%

发文量

703

审稿时长

44 days

期刊介绍： Physica B: Condensed Matter comprises all condensed matter and material physics that involve theoretical, computational and experimental work. Papers should contain further developments and a proper discussion on the physics of experimental or theoretical results in one of the following areas: -Magnetism -Materials physics -Nanostructures and nanomaterials -Optics and optical materials -Quantum materials -Semiconductors -Strongly correlated systems -Superconductivity -Surfaces and interfaces