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Abd Elkodous M, S El-Sayyad G, Abdel Maksoud MIA, Kumar R, Maegawa K, Kawamura G, Tan WK, Matsuda A. Nanocomposite matrix conjugated with carbon nanomaterials for photocatalytic wastewater treatment. JOURNAL OF HAZARDOUS MATERIALS 2021; 410:124657. [PMID: 33272728 DOI: 10.1016/j.jhazmat.2020.124657] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 11/10/2020] [Accepted: 11/22/2020] [Indexed: 06/12/2023]
Abstract
The problem of hazardous wastewater remediation is a complicated issue and a global challenge. Herein, a layered Co0.5Ni0.5Fe2O4/SiO2/TiO2 composite matrix was prepared and incorporated with three carbon nanomaterials having different dimensionalities, carbon dots (C-dots, 0D), single-walled carbon nanotubes (1D), and reduced graphene oxide (2D), in an effort to create effective photocatalytic nanocomposites for chloramine-T removal from water. Microstructural analyses confirmed the formation of nanocomposites and revealed their chemistry and structure. Elemental mapping revealed a uniform distribution of elements throughout the nanocomposite matrix that was free of impurities. The spherical shape of the matrix particles (average diameter ~90 nm) and their conjugation with the carbon nanomaterials were confirmed. Nitrogen adsorption-desorption isotherms revealed that the nanocomposites were mesoporous but also contained macropores. The surface chemical compositions of the nanocomposites were investigated and showed a range of available binding energies. The kinetics of photocatalysis by the system were studied, and the effects of different parameters (such as photocatalyst dose and charge-carrier scavengers) on the efficiency of chloramine-T degradation were also investigated. The nanocomposite loaded with 10% C-dots exhibited high UV-assisted photocatalytic activity for chloramine-T degradation (65% removal efficiency).
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Affiliation(s)
- M Abd Elkodous
- Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan; Center for Nanotechnology (CNT), School of Engineering and Applied Sciences, Nile University, Sheikh Zayed, Giza 16453, Egypt
| | - Gharieb S El-Sayyad
- Drug Microbiology Lab, Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Atomic Energy Authority, Cairo, Egypt; Chemical Engineering Department, Military Technical College (MTC), Egyptian Armed Forces, Cairo, Egypt
| | - M I A Abdel Maksoud
- Materials Science Lab., Radiation Physics Department, National Center for Radiation Research and Technology (NCRRT), Atomic Energy Authority, Cairo, Egypt
| | - Rajesh Kumar
- Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan
| | - Keiichiro Maegawa
- Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan
| | - Go Kawamura
- Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan.
| | - Wai Kian Tan
- Institute of Liberal Arts and Sciences, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan
| | - Atsunori Matsuda
- Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan.
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Waheed IF, Al-Janabi OYT, Ibrahim AK, Foot PJS, Alkarawi MAS, Ali BM, Al-Abady FM. MgFe2O4/CNTs nanocomposite: synthesis, characterization, and photocatalytic activity. INTERNATIONAL JOURNAL OF INDUSTRIAL CHEMISTRY 2021. [DOI: 10.1007/s40090-020-00223-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Ansari S, Khorshidi A, Shariati S. Chemoselective reduction of nitro and nitrile compounds using an Fe3O4-MWCNTs@PEI-Ag nanocomposite as a reusable catalyst. RSC Adv 2020; 10:3554-3565. [PMID: 35497750 PMCID: PMC9048720 DOI: 10.1039/c9ra09561f] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Accepted: 01/16/2020] [Indexed: 11/21/2022] Open
Abstract
Chemoselective reductions by an Fe3O4-MWCNTs@PEI-Ag nanocomposite.
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Affiliation(s)
- Sara Ansari
- Department of Chemistry
- Faculty of Sciences
- University of Guilan
- Iran
| | | | - Shahab Shariati
- Department of Chemistry
- Rasht Branch
- Islamic Azad University
- Rasht
- Iran
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Bera P, Lakshmi RV, Prakash BH, Tiwari K, Shukla A, Kundu AK, Biswas K, Barshilia HC. Solution combustion synthesis, characterization, magnetic, and dielectric properties of CoFe2O4 and Co0.5M0.5Fe2O4 (M = Mn, Ni, and Zn). Phys Chem Chem Phys 2020; 22:20087-20106. [DOI: 10.1039/d0cp03161e] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Co0.5Zn0.5Fe2O4 (CZF) shows the highest Ms value compared to CoFe2O4 (CF), Co0.5Mn0.5Fe2O4 (CMF), and Co0.5Ni0.5Fe2O4 (CNF) as Zn2+ would prefer to occupy tetrahedral sites with a consequent increase of the Fe3+ concentration in octahedral sites.
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Affiliation(s)
- Parthasarathi Bera
- Surface Engineering Division
- CSIR – National Aerospace Laboratories
- Bengaluru 560017
- India
| | - R. V. Lakshmi
- Surface Engineering Division
- CSIR – National Aerospace Laboratories
- Bengaluru 560017
- India
| | - B. H. Prakash
- Surface Engineering Division
- CSIR – National Aerospace Laboratories
- Bengaluru 560017
- India
| | - Khushubo Tiwari
- Department of Materials Science and Engineering
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Ashish Shukla
- Discipline of Physics
- Indian Institute of Information Technology Design and Manufacturing Jabalpur
- Madhya Pradesh 482005
- India
| | - Asish K. Kundu
- Discipline of Physics
- Indian Institute of Information Technology Design and Manufacturing Jabalpur
- Madhya Pradesh 482005
- India
| | - Krishanu Biswas
- Department of Materials Science and Engineering
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Harish C. Barshilia
- Surface Engineering Division
- CSIR – National Aerospace Laboratories
- Bengaluru 560017
- India
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