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Gharaati AR, Allafchian A, Karimzadeh F. Exploring the antibacterial potential of magnetite/Quince seed mucilage/Ag nanocomposite: Synthesis, characterization, and activity assessment. Int J Biol Macromol 2023; 249:126120. [PMID: 37541468 DOI: 10.1016/j.ijbiomac.2023.126120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/24/2023] [Accepted: 08/01/2023] [Indexed: 08/06/2023]
Abstract
In this study, we present a novel core-shell antibacterial agent designed for water disinfection purposes. The nanocomposite is synthesized by combining quince seed mucilage (QSM) as the shell material and Fe3O4 as the core material. The integration of antibacterial silver nanoparticles (Ag NPs) onto the QSM shell effectively prevents agglomeration of the Ag NPs, resulting in a larger contact surface area with bacteria and consequently exhibiting enhanced antibacterial activity. The incorporation of magnetic Fe3O4 NPs with a saturation magnetization of 55.2 emu·g-1 as the core allows for easy retrieval of the nanocomposites from the medium using a strong magnetic field, enabling their reusability. The Fe3O4/QSM/Ag nanocomposite is extensively characterized using XRD, FT-IR, VSM, DLS, FE-SEM, and TEM techniques. The characterization results confirm the successful synthesis of the nanocomposites, with an average particle size of 73 nm and no contamination or impurities detected. The nanocomposites exhibit superparamagnetic properties, with a saturated magnetization of 22.69 emu·g-1, ensuring facile separation from water. The antibacterial activity of the synthesized nanocomposite is evaluated using the disk diffusion method against both Gram-positive and Gram-negative bacteria. The results reveal excellent antibacterial efficacy, with minimum inhibition concentrations (MIC) of 0.8 mg·mL-1 against E. coli and S. typhimurium. Furthermore, the measurement of released silver ions in water using ICP-OES indicates a low concentration of remaining silver ions in the medium, highlighting the controlled release of antimicrobial agents. Overall, this study provides valuable insights into the development of advanced antibacterial agents for water disinfection applications, offering potential solutions to combat microbial contamination effectively.
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Affiliation(s)
- Ahmad Reza Gharaati
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Alireza Allafchian
- Research Institute for Nanotechnology and Advanced Materials, Isfahan University of Technology, Isfahan 84156-83111, Iran; Research Institute for Biotechnology and Bioengineering, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| | - Fathallah Karimzadeh
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; Research Institute for Nanotechnology and Advanced Materials, Isfahan University of Technology, Isfahan 84156-83111, Iran
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Iqbal Z, Tanweer MS, Alam M. Reduced Graphene Oxide-Modified Spinel Cobalt Ferrite Nanocomposite: Synthesis, Characterization, and Its Superior Adsorption Performance for Dyes and Heavy Metals. ACS OMEGA 2023; 8:6376-6390. [PMID: 36844590 PMCID: PMC9948210 DOI: 10.1021/acsomega.2c06636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 02/03/2023] [Indexed: 06/18/2023]
Abstract
This work is dedicated to the synthesis, characterization, and adsorption performance of reduced graphene oxide-modified spinel cobalt ferrite nanoparticles. The as-synthesized reduced graphene oxide cobalt ferrite (RGCF) nanocomposite has been characterized using FTIR spectroscopy, FESEM coupled with EDXS, XRD, HRTEM, zeta potential, and vibrating sample magnetometer (VSM) measurements. FESEM proves the particle size in the range of 10 nm. FESEM, EDX, TEM, FTIR, and XPS analyses provide the proof of successful incorporation of rGO sheets with cobalt ferrite nanoparticles. The crystallinity and spinel phase of cobalt ferrite nanoparticles have been shown by XRD results. The saturation magnetization (M s) was measured as 23.62 emu/g, proving the superparamagnetic behavior of RGCF. The adsorption abilities of the synthesized nanocomposite have been tested using cationic crystal violet (CV) and brilliant green (BG) and anionic methyl orange (MO) and Congo red (CR) dyes. The adsorption trend for MO, CR, BG, and As(V) follows RGCF > rGO > CF at neutral pH. Adsorption studies have been accomplished by optimizing parameters like pH (2-8), adsorbent dose (1-3 mg/25 mL), initial concentration (10-200 mg/L), and contact time at constant room temperature (RT). To further investigate the sorption behavior, isotherm, kinetics, and thermodynamic studies have been conducted. Langmuir isotherm and pseudo-second-order kinetic models suited better for the adsorption of dyes and heavy metals. The maximum adsorption capacities (q m) obtained have been found as 1666.7, 1000, 416.6, and 222.2 mg/g for MO, CR, BG, and As, respectively, with operational parameters such as T = 298.15 K; RGCF dose: 1 mg for MO and 1.5 mg each for CR, BG, and As. Thus, the RGCF nanocomposite was found to be an excellent adsorbent for the removal of dyes and heavy metals.
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Anuma S, Mishra P, Bhat BR. Polypyrrole functionalized Cobalt oxide Graphene (COPYGO) nanocomposite for the efficient removal of dyes and heavy metal pollutants from aqueous effluents. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:125929. [PMID: 34492859 DOI: 10.1016/j.jhazmat.2021.125929] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 04/05/2021] [Accepted: 04/16/2021] [Indexed: 06/13/2023]
Abstract
A cobalt oxide graphene nanocomposite functionalized with polypyrrole (COPYGO) having a heterogenous porous structure was synthesized using hydrothermal method. Microscopic imaging of the COPYGO surface revealed its highly porous and ordered features. The adsorption performance of the COPYGO composite was systemically investigated for Methylene Blue (MB), Congo red (CR) dyes and toxic lead (Pb(II)) and Cadmium (Cd(II)) metals. These were selected as they are the common pollutants in industrial wastewater. The COPYGO was found to be thermally stable up to 195 oC with a specific surface area of 133 m2 g-1. Experimental data indicates that the COPYGO follows Langmuir and Temkin adsorption isotherm. The COPYGO was efficient in removing MB (92.8%), CR (92.2%), Pb(II) (93.08%) and Cd(II) (95.28%) pollutants at pH 7.2, 5.0, 5.5 and 6.1 respectively from the simulated effluents. The maximum adsorption capacity (Qmax) observed for MB 663.018 mg g-1, CR 659.056 mg g-1, Pb(II) 780.363 mg g-1 and Cd(II) 794.188 mg g-1 pollutants. The thermodynamic analysis of the COPYGO indicates that the adsorption is endothermic and spontaneous in nature. COPYGO showed very high efficient removal rate for the pollutants in simulated effluents which guaranteed its benefits and efficacy in industrial wastewater treatment.
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Affiliation(s)
- Saroja Anuma
- Catalysis and Material Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka, Mangalore, Karnataka 575025, India
| | - Praveen Mishra
- Catalysis and Material Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka, Mangalore, Karnataka 575025, India
| | - Badekai Ramachandra Bhat
- Catalysis and Material Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka, Mangalore, Karnataka 575025, India.
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Facile synthesis of graphite oxide/MIL-101(Cr) hybrid composites for enhanced adsorption performance towards industrial toxic dyes. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2020.12.023] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Synthesis, Characterisations, Adsorptive Performances and Photo-catalytic Activity of Fe3O4-SiO2 Based Nanosorbent (Fe3O4-SiO2 BN). J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01622-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Awad AM, Jalab R, Benamor A, Nasser MS, Ba-Abbad MM, El-Naas M, Mohammad AW. Adsorption of organic pollutants by nanomaterial-based adsorbents: An overview. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.112335] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Mondal S, Patel S, Majumder SK. Bio-extract assisted in-situ green synthesis of Ag-RGO nanocomposite film for enhanced naproxen removal. KOREAN J CHEM ENG 2020. [DOI: 10.1007/s11814-019-0435-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Pham TN, Huy TQ, Le AT. Spinel ferrite (AFe2O4)-based heterostructured designs for lithium-ion battery, environmental monitoring, and biomedical applications. RSC Adv 2020; 10:31622-31661. [PMID: 35520663 PMCID: PMC9056412 DOI: 10.1039/d0ra05133k] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 08/06/2020] [Indexed: 12/17/2022] Open
Abstract
The development of spinel ferrite nanomaterial (SFN)-based hybrid architectures has become more popular owing to the fascinating physicochemical properties of SFNs, such as their good electro-optical and catalytic properties, high chemothermal stability, ease of functionalization, and superparamagnetic behaviour. Furthermore, achieving the perfect combination of SFNs and different nanomaterials has promised to open up many unique synergistic effects and advantages. Inspired by the above-mentioned noteworthy properties, numerous and varied applications have been recently developed, such as energy storage in lithium-ion batteries, environmental pollutant monitoring, and, especially, biomedical applications. In this review, recent development efforts relating to SFN-based hybrid designs are described in detail and logically, classified according to 4 major hybrid structures: SFNs/carbonaceous nanomaterials; SFNs/metal–metal oxides; SFNs/MS2; and SFNs/other materials. The underlying advantages of the additional interactions and combinations of effects, compared to the standalone components, and the potential uses have been analyzed and assessed for each hybrid structure in relation to lithium-ion battery, environmental, and biomedical applications. We have summarized recent developments in SFN-based hybrid designs. The additional interactions, combination effects, and important changes have been analyzed and assessed for LIB, environmental monitoring, and biomedical applications.![]()
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Affiliation(s)
- Tuyet Nhung Pham
- Phenikaa University Nano Institute (PHENA)
- Phenikaa University
- Hanoi 12116
- Vietnam
| | - Tran Quang Huy
- Phenikaa University Nano Institute (PHENA)
- Phenikaa University
- Hanoi 12116
- Vietnam
- Faculty of Electric and Electronics
| | - Anh-Tuan Le
- Phenikaa University Nano Institute (PHENA)
- Phenikaa University
- Hanoi 12116
- Vietnam
- Faculty of Materials Science and Engineering
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Wei F, Wang H, Ran W, Liu T, Liu X. Preparation of S–N co-doped CoFe2O4@rGO@TiO2 nanoparticles and their superior UV-Vis light photocatalytic activities. RSC Adv 2019; 9:6152-6162. [PMID: 35517270 PMCID: PMC9060945 DOI: 10.1039/c8ra10238d] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 01/22/2019] [Indexed: 11/21/2022] Open
Abstract
A S–N co-doped CoFe2O4@rGO@TiO2 (CFGT-S/N) nanocomposite was successfully synthesized via a facile vapor-thermal method. XRD, XPS, FT-IR and FETEM results confirmed that N and S were co-doped into the lattice of TiO2. Photocatalytic tests indicated that CFGT-S/N exhibited excellent UV-Vis photocatalytic activity for decompositions of different organic dyes, including methyl orange (MO), rhodamine B (RhB) and methylene blue (MB). Particularly, the photocatalytic degradation rate of MO was about 33% higher than that when using P25 under visible light irradiation. The higher UV-Vis light photocatalytic activity of CFGT-S/N can be attributed to the synergetic effects of the strong absorption of visible light, the narrow band gap, improved separation of photo-generated electron/hole pairs, and the enhancement of the enrichment of pollutant dye molecules by S, N co-doping, CoFe2O4 and rGO. Moreover, this photocatalyst was superparamagnetic, which enables it to be easily recovered by an external magnetic field, and maintained stable photocatalytic efficiency over five cycles. Hence, CFGT-S/N with its highly efficient, recoverable and stable photocatalytic properties shows great potential for environmental treatment. A magnetic recoverable S–N co-doped CoFe2O4@rGO@TiO2 (CFGT-S/N) nanocomposite was synthesized via a facile vapor-thermal method. CFGT-S/N is an excellent UV-Vis photocatalyst because of the synergetic effects of S, N co-doping, the introduction of CoFe2O4 and rGO.![]()
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Affiliation(s)
- Fengyu Wei
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei 230009
- P. R. China
| | - Hui Wang
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei 230009
- P. R. China
| | - Wei Ran
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei 230009
- P. R. China
| | - Tao Liu
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei 230009
- P. R. China
| | - Xueting Liu
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei 230009
- P. R. China
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Alazmi A, Singaravelu V, Batra N, Smajic J, Alyami M, Khashab NM, Costa PMFJ. Cobalt ferrite supported on reduced graphene oxide as a T2 contrast agent for magnetic resonance imaging. RSC Adv 2019; 9:6299-6309. [PMID: 35517263 PMCID: PMC9060952 DOI: 10.1039/c8ra09476d] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 02/15/2019] [Indexed: 11/29/2022] Open
Abstract
Nanoscaled spinel-structured ferrites bear promise as next-generation contrast agents for magnetic resonance imaging. However, the small size of the particles commonly leads to colloidal instability under physiological conditions. To circumvent this problem, supports onto which the dispersed nanoparticles can be anchored have been proposed. Amongst these, flakes of graphene have shown interesting performance but it remains unknown if and how their surface texture and chemistry affect the magnetic properties and relaxation time (T2) of the ferrite nanoparticles. Here, it is shown that the type of graphene oxide (GO) precursor, used to make composites of cobalt ferrite (CoFe2O4) and reduced GO, influences greatly not just the T2 but also the average size, dispersion and magnetic behaviour of the grafted nanoparticles. Accordingly, and without compromising biocompatibility, a judicious choice of the initial GO precursor can result in the doubling of the proton relaxivity rate in this system. In a one-pot hydrothermal synthesis of MRI-active CoFe2O4 nanoparticles grafted onto graphene flakes, careful selection of the parent graphene oxide enables major increments in grafting yield and proton relaxivity rates.![]()
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Affiliation(s)
- Amira Alazmi
- King Abdullah University of Science and Technology (KAUST)
- Physical Science and Engineering Division
- Saudi Arabia
- University of Hafr Al Batin
- University Colleges at Nairiyah
| | | | - Nitin M. Batra
- King Abdullah University of Science and Technology (KAUST)
- Physical Science and Engineering Division
- Saudi Arabia
| | - Jasmin Smajic
- King Abdullah University of Science and Technology (KAUST)
- Physical Science and Engineering Division
- Saudi Arabia
| | - Mram Alyami
- Smart Hybrid Materials (SHMs) Laboratory
- Advanced Membranes and Porous Materials Center
- King Abdullah University of Science and Technology
- Kingdom of Saudi Arabia
| | - Niveen M. Khashab
- Smart Hybrid Materials (SHMs) Laboratory
- Advanced Membranes and Porous Materials Center
- King Abdullah University of Science and Technology
- Kingdom of Saudi Arabia
| | - Pedro M. F. J. Costa
- King Abdullah University of Science and Technology (KAUST)
- Physical Science and Engineering Division
- Saudi Arabia
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Removal of Colored Organic Pollutants from Wastewaters by Magnetite/Carbon Nanocomposites: Single and Binary Systems. J CHEM-NY 2018. [DOI: 10.1155/2018/6249821] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
This work develops a methodology for selective removal of industrial dyes from wastewaters using adsorption technology based on magnetic adsorbents. The magnetic nanoparticles embedded within a matrix of activated carbon were tested as adsorbents for removal of industrial dyes from aqueous solutions. The effects of four independent variables, solution pH, initial concentration of pollutant, adsorbent dose, contact time, and their interactions on the adsorption capacity of the nanocomposite were investigated in order to optimize the process. The removal efficiency of pollutants depends on solution pH and increases with increasing the carbon content, with initial concentration of the pollutants, the temperature, and the dose of magnetite/carbon nanocomposites. Pseudo-second-order kinetic model was fitted to the kinetic data, and adsorption isotherm analysis and thermodynamics were used to elucidate the adsorption mechanism. The maximum adsorption capacities were 223.82 mg g−1 for Nylosan Blue, 114.68 mg g−1 for Chromazurol S, and 286.91 mg g−1 for Basic Red 2. The regeneration and reuse of the sorbent were evaluated in seven adsorption/desorption cycles. The optimum conditions obtained for individual adsorption were selected as starting conditions for simultaneous adsorption of dyes. In binary systems, in normal conditions, selectivity decreases in the order: Red Basic 2 > Nylosan Blue > Chromazurol S.
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