Scholarlink

<p>The current study focused on the synthesis and characterization of lanthanum ferrite nanoparticles (LaFe<sub>2</sub>O<sub>4</sub> NPs). Lanthanum ferrite nanoparticles were successfully synthesized by applying the microwave-assisted solution combustion process, with lanthanum nitrate hexahydrate and ferric nitrate nonahydrate as precursors for the degradation of Rhodamine B (RhB) dye under UV irradiation. LaFe<sub>2</sub>O<sub>4</sub> was prepared with a molar ratio of 1:2 and calcined at 650°C. The synthesized nanoparticles were characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy, scanning electron microscope with energy dispersive X-ray analysis (EDX), and Brunauer Emmett Teller (BET) surface area analyzer. The degradation of RhB dye was initially monitored under only UV light, dark with LaFe<sub>2</sub>O<sub>4</sub> NPs, and UV light with LaFe<sub>2</sub>O<sub>4</sub> nanoparticles. The degradation investigations were conducted in a series of experiments with varied parameters such as the presence of an oxidizing agent (H<sub>2</sub>O<sub>2</sub>) (0–70 µL), initial pH value (5–9), catalyst dosage (0.01–0.05&#xa0;g), and catalyst activity. A maximum Rhodamine B dye degradation efficiency of 98.60% was achieved under optimized conditions: 50 μL H<sub>2</sub>O<sub>2</sub>, pH 5, 0.04&#xa0;g catalyst, and 120&#xa0;min reaction time. The mechanism of photocatalytic degradation of RhB dye and the reusability of LaFe<sub>2</sub>O<sub>4</sub> were both investigated. The results demonstrated that spinel-structured LaFe<sub>2</sub>O<sub>4</sub> nanoparticles showed a splendid photocatalytic degradation of RhB dye, making it suitable for photocatalytic treatment of dye wastewater.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Microwave-Assisted Solution Combustion Synthesis of LaFe2O4 Nanoparticles for Enhanced Photocatalytic Degradation of Rhodamine B Dye under Visible Light Irradiation

  • 期刊论文

  • 发表日期：

    2025年10月25日

查看全文
  • Satishkumar K. Movaliya,
  • Akash R. Raval,
  • Sanjay S. Patel

摘要

The current study focused on the synthesis and characterization of lanthanum ferrite nanoparticles (LaFe2O4 NPs). Lanthanum ferrite nanoparticles were successfully synthesized by applying the microwave-assisted solution combustion process, with lanthanum nitrate hexahydrate and ferric nitrate nonahydrate as precursors for the degradation of Rhodamine B (RhB) dye under UV irradiation. LaFe2O4 was prepared with a molar ratio of 1:2 and calcined at 650°C. The synthesized nanoparticles were characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy, scanning electron microscope with energy dispersive X-ray analysis (EDX), and Brunauer Emmett Teller (BET) surface area analyzer. The degradation of RhB dye was initially monitored under only UV light, dark with LaFe2O4 NPs, and UV light with LaFe2O4 nanoparticles. The degradation investigations were conducted in a series of experiments with varied parameters such as the presence of an oxidizing agent (H2O2) (0–70 µL), initial pH value (5–9), catalyst dosage (0.01–0.05 g), and catalyst activity. A maximum Rhodamine B dye degradation efficiency of 98.60% was achieved under optimized conditions: 50 μL H2O2, pH 5, 0.04 g catalyst, and 120 min reaction time. The mechanism of photocatalytic degradation of RhB dye and the reusability of LaFe2O4 were both investigated. The results demonstrated that spinel-structured LaFe2O4 nanoparticles showed a splendid photocatalytic degradation of RhB dye, making it suitable for photocatalytic treatment of dye wastewater.