Uniform-sized (K, Na)NbO3 nanocrystallines as potential photocatalytic materials

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-03-23 DOI:10.1016/j.matlet.2025.138449

Yanqing Liu, Liangliang Liu, Zhaoping Hou

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引用次数: 0

Abstract

(K, Na)NbO₃ materials with piezoelectric effect are considered to be very competitive compounds in the field of optoelectronics. The low crystallinity and stability of the raw materials have limited the development of the (K, Na)NbO₃ materials. In this work, a new strategy combining solid phase reaction and molten salt methods has been designed to synthesize (K, Na)NbO₃ powder. Uniform-sized (K, Na)NbO₃ nanocrystallines were obtained in the K_0.5Na_0.5NbO₃-KCl system at 900 °C. The electric properties of the (K, Na)NbO₃ ceramics suggested that the chemical composition of the nanocrystalline closed to the stoichiometric ratio of K_0.5Na_0.5NbO₃. It was found that the degradation rate of (K, Na)NbO₃ nanocrystallines on methylene blue (MB) solution reached 68 % under visible light irradiation. This study shows that (K, Na)NbO₃ has great potential in the environmental remediation of polluted water.

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作为潜在光催化材料的均匀尺寸（K、Na）NbO3 纳米晶体

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive