Z-scheme design of hydrothermally synthesized Sm-Fe-doped LaNiO3/g-C3N4 heterostructure photo-catalyst for the efficient elimination of methylene blue & moxifloxacin pollutants

IF 2.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Polyhedron Pub Date : 2025-02-12 DOI:10.1016/j.poly.2025.117446

Shahid Iqbal , Firdous Bibi , Muhammad Jamshaid , Ambreen Kalsoom , Wedad A. Al-onazi , Mohamed S. Elshikh , Md Rezaul Karim , Ismail Hossain

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引用次数: 0

Abstract

In this current investigation, it deals with the synthesis of a highly effective Z-scheme visible light-driven Sm-Fe-doped LaNiO₃/g-C₃N₄ hetero-structure photocatalyst for the efficient elimination of toxic environmental pollutants from wastewater. Pristine LaNiO₃ nanoparticles (NP), samarium, and iron (Sm-Fe) doped LaNiO₃ NP and their nanohybrid composite Sm-Fe doped LaNiO₃/g-C₃N₄ with 15 % (g-C₃N₄) graphitic-carbon-nitride was prepared via facile glycerine-assisted hydrothermal and ultra-sonication approaches. The materials for their physico-chemical properties were characterized using SEM, TEM, P-XRD, FTIR, XPS, BET, I-V, VSM, PL, and UV–visible analysis. The morphological analysis revealed that the g-C₃N₄ sheets interact and buffer with Sm-Fe-doped LaNiO₃ NP, forming larger, elongated aggregations having highly exposed surfaces, wider particle size distributions and possessing an average particle sizes 22–34 nm. Structural investigation demonstrated the single-phase rhombohedral LaNiO₃ perovskite along with successful Sm and Fe cation doping. The Sm-Fe-doped LaNiO₃/g-C₃N₄ nanohybrid materials exhibited excellent BET surface area (96.7 m²/g), a well-porous nature with average pore sizes in the 1.5–2.6 nm range, good saturation magnetization (2.204

\times

10⁻³ Ms/emu), boosted electrical conductivity (1.09

\times

10² Sm⁻¹) and a narrow band gap (2.06 eV), which was credited to the Sm-Fe-doping and the combination of highly conducting g-C₃N₄ material. It was demonstrated that Sm-Fe-doped LaNiO₃ NP were uniformly dispersed on g-C₃N₄ nanohybrids, forming an intimate interface with robust interaction between LaNiO₃ and the g-C₃N₄, which promoted efficient charge mobility and separation, forming a Z-scheme photocatalytic system. The photo-degradation investigation of the newly synthesized photo-catalyst was tested against methylene blue (MB) dye and moxifloxacin (MOX) drug under solar-light irradiation. The Sm-Fe-doped LaNiO₃/g-C₃N₄ nanohybrid photocatalyst exhibited excellent removal of MB dye (97.8 %) and MOX (96.4 %) in only 55 min. This superb removal proficiency of MB dye and MOX by Sm-Fe-doped LaNiO₃/g-C₃N₄ nanohybrid was attributed to its improved magnetic, good electrical, well-porosity, and excellent optical absorption characteristics, which make the Sm-Fe-doped LaNiO₃/g-C₃N₄ nanohybrid as a novel materials for removing toxic environmental pollutants.

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来源期刊

Polyhedron 化学-晶体学

CiteScore

4.90

自引率

7.70%

发文量

515

审稿时长

2 months

期刊介绍： Polyhedron publishes original, fundamental, experimental and theoretical work of the highest quality in all the major areas of inorganic chemistry. This includes synthetic chemistry, coordination chemistry, organometallic chemistry, bioinorganic chemistry, and solid-state and materials chemistry. Papers should be significant pieces of work, and all new compounds must be appropriately characterized. The inclusion of single-crystal X-ray structural data is strongly encouraged, but papers reporting only the X-ray structure determination of a single compound will usually not be considered. Papers on solid-state or materials chemistry will be expected to have a significant molecular chemistry component (such as the synthesis and characterization of the molecular precursors and/or a systematic study of the use of different precursors or reaction conditions) or demonstrate a cutting-edge application (for example inorganic materials for energy applications). Papers dealing only with stability constants are not considered.