Efficient α-Fe2O3 @NiO nanocomposites as a photocatalyst for the treatment of hazardous Rose Bengal dye

被引：6
作者：
Devi, Seema [1 ]
Tripta
Ankita
Kumar, Sandeep [2 ]
Kumar, Ravi [2 ]
Kumar, Vinod [1 ]
Kumar, Ashok [3 ]
Singh, Omveer [4 ]
Kumar, Parmod [5 ]
机构：
[1] Netaji Subhas Univ Technol NSUT, Dept Phys, Delhi 110078, India
[2] JC Bose Univ Sci & Technol, YMCA, Faridabad 121006, Haryana, India
[3] Deenbandhu Chhotu Ram Univ Sci & Technol, Dept Phys, Murthal 131039, Haryana, India
[4] Univ Delhi, Rajdhani Coll, Dept Phys, Delhi 110015, India
[5] Gurugram Univ, Dept Phys, Gurugram 122003, Haryana, India
来源：
PHYSICA B-CONDENSED MATTER | 2025年 / 696卷
关键词：
Photocatalytic activity; Nanocomposite; UV-Visible; Reusability; Rose bangel (RB); DEGRADATION; FERRITE;
D O I：
10.1016/j.physb.2024.416649
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
This work aims to determine the structural, optical, and magnetic characteristics of alpha-Fe2O3/NiO nanocomposites and their application in the treatment of water contaminated by RB dyes. Utilizing the cost-effective chemical co- precipitation method, nanocomposites with weight ratios of alpha-Fe2O3: NiO (1:1, 2:1, and 1:2) were produced. The XRD pattern was used to identify the synthesized materials that contained NiO and alpha-Fe2O3 phases. Lattice flaws and oxygen vacancies were found using XPS spectra. Magnetic experiments reveal that alpha-Fe2O3@NiO (1:2) has strongest magnetic character among all synthesized materials, with a maximum magnetization of 35.56 emu/g. The improved photocatalytic activity of alpha-Fe2O3/NiO (2:1) nanocomposites achieved a maximum of approximately 94 % degradation of Rose Bengal dye in 90 min. The increased photocatalytic activity can be attributed to synergistic contribution of alpha-Fe2O3 and NiO, which inhibits photo-generated charge carrier recombination and formation of highly active radical species (OH center dot radicals, and O 2 center dot radicals).
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页数：10
相关论文
共 41 条
[1]   Photocatalytic degradation of methylene blue by ZnO/NiFe2O4 nanoparticles [J].
Adeleke, J. T. ;
Theivasanthi, T. ;
Thiruppathi, M. ;
Swaminathan, M. ;
Akomolafe, T. ;
Alabi, A. B. .
APPLIED SURFACE SCIENCE, 2018, 455 :195-200
[2]  
Ahlawat A., 2022, Catal. Res, V02, P1, DOI [10.21926/cr.2204039, DOI 10.21926/CR.2204039]
[3]   Studies of photocatalytic and optoelectronic properties of microwave synthesized and polyethyleneimine stabilized carbon quantum dots [J].
Ahlawat, Amit ;
Rana, Pawan S. ;
Solanki, Pratima R. .
MATERIALS LETTERS, 2021, 305
[4]  
Amita Deepak, 2019, AIP CONF PROC, V2093, DOI [10.1063/1.5097104, DOI 10.1063/1.5097104]
[5]   Gd doped Cerium Oxide for organic dye degradation and tuning of magnetic properties [J].
Ankita ;
Chahal, Surjeet ;
Singh, Saurabh ;
Kumar, Lalit ;
Gupta, Vishal ;
Kumar, Sushil ;
Kumar, Sandeep ;
Kumar, Parmod .
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2024, 300
[6]   Europium-doped cerium oxide nanoparticles: investigating oxygen vacancies and their role in enhanced photocatalytic and magnetic properties [J].
Ankita, Ankita ;
Chahal, Surjeet ;
Singh, Saurabh ;
Kumar, Sandeep ;
Kumar, Parmod .
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2024, 31 (01) :1195-1211
[7]  
Ankita S., 2023, VACUUM, V215, DOI [10.1016/j.vacuum.2023.112280, DOI 10.1016/j.vacuum.2023.112280]
[8]   Sorption of reactive dyes from aqueous solutions by ordered hexagonal and disordered mesoporous carbons [J].
Asouhidou, Despoina D. ;
Triantafyllidis, Kostas S. ;
Lazaridis, Nikolaos K. ;
Matis, Kostas A. ;
Kim, Seong-Su ;
Pinnavaia, Thomas J. .
MICROPOROUS AND MESOPOROUS MATERIALS, 2009, 117 (1-2) :257-267
[9]   Analysis of the Fe 2p XPS for hematite α Fe2O3: Consequences of covalent bonding and orbital splittings on multiplet splittings [J].
Bagus, Paul S. ;
Nelin, Connie J. ;
Brundle, C. R. ;
Lahiri, N. ;
Ilton, Eugene S. ;
Rosso, Kevin M. .
JOURNAL OF CHEMICAL PHYSICS, 2020, 152 (01)
[10]  
Chahal S., 2021, J PHYS CHEM SOLIDS, V156, DOI [10.1016/j.jpcs.2021.110118, DOI 10.1016/j.jpcs.2021.110118]
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