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Safdar A, Mohamed HEA, Muhaymin A, Hkiri K, Matinise N, Maaza M. Biogenic synthesis of nickel cobaltite nanoparticles via a green route for enhancing the photocatalytic and electrochemical performances. Sci Rep 2024; 14:17620. [PMID: 39085423 PMCID: PMC11291633 DOI: 10.1038/s41598-024-68574-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Accepted: 07/25/2024] [Indexed: 08/02/2024] Open
Abstract
Green synthesis aligns with the global demand for eco-friendly and sustainable technologies, reducing the dependency on harmful chemicals and high-energy processes typically used in conventional synthesis techniques. This study highlights a novel green synthesis route for nickel cobaltite nanoparticles (NiCO2O4 NPs) utilizing Hyphaene thebaica extract as a natural reducing and stabilizing agent. The synthesized NiCO2O4 NPs, with sizes ranging from 20 to 30 nm, exhibited uniform diamond-like structures as confirmed by SEM and TEM imaging. XRD analysis verified the polycrystalline nature of these nanoparticles, while EDS measurements confirmed the elemental composition of Ni and Co. The presence of functional groups was subsequently verified through FT-IR analysis, and Raman spectroscopy further confirmed phase formation. Electrochemical evaluations revealed significant pseudocapacitive behavior, showing a specific capacitance of 519 F/g, demonstrating their potential for high-performance supercapacitors. To further assess the applicability of the synthesized NiCO2O4 NPs, their photocatalytic activity against methylene blue (MB) dye was investigated, resulting in a 99% degradation rate. This impressive photocatalytic efficiency highlights their potential application in environmental remediation. Overall, this work underscores the significant potential of green synthesis methods in producing high-performance nanomaterials while simultaneously reducing environmental impact and promoting sustainable development.
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Affiliation(s)
- Ammara Safdar
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, P.O. Box 392, Muckleneuk RidgePretoria, South Africa
- Material Research Department (MRD), Nanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, 1 Old Faure Road, Somerset West, PO Box 722, Somerset West, 7129, Western Cape, South Africa
- Preston Institute of Nanoscience and Technology, Preston University Kohat, Islamabad Campus, Islamabad, Pakistan
| | - Hamza Elsayed Ahmad Mohamed
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, P.O. Box 392, Muckleneuk RidgePretoria, South Africa.
- Material Research Department (MRD), Nanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, 1 Old Faure Road, Somerset West, PO Box 722, Somerset West, 7129, Western Cape, South Africa.
| | - Abdul Muhaymin
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, P.O. Box 392, Muckleneuk RidgePretoria, South Africa
- Material Research Department (MRD), Nanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, 1 Old Faure Road, Somerset West, PO Box 722, Somerset West, 7129, Western Cape, South Africa
- Preston Institute of Nanoscience and Technology, Preston University Kohat, Islamabad Campus, Islamabad, Pakistan
| | - Khaoula Hkiri
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, P.O. Box 392, Muckleneuk RidgePretoria, South Africa
- Material Research Department (MRD), Nanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, 1 Old Faure Road, Somerset West, PO Box 722, Somerset West, 7129, Western Cape, South Africa
| | - Nolubabalo Matinise
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, P.O. Box 392, Muckleneuk RidgePretoria, South Africa
- Material Research Department (MRD), Nanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, 1 Old Faure Road, Somerset West, PO Box 722, Somerset West, 7129, Western Cape, South Africa
| | - Malik Maaza
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, P.O. Box 392, Muckleneuk RidgePretoria, South Africa
- Material Research Department (MRD), Nanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, 1 Old Faure Road, Somerset West, PO Box 722, Somerset West, 7129, Western Cape, South Africa
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Addai FP, Wu J, Lin F, Ma X, Han J, Liu Y, Zhou Y, Wang Y. Alloyed Trimetallic Nanocomposite as an Efficient and Recyclable Solid Matrix for Ideonella sakaiensis Lipase Immobilization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:8921-8938. [PMID: 38626327 DOI: 10.1021/acs.langmuir.4c00090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/18/2024]
Abstract
In this work, a trimetallic (Ni/Co/Zn) organic framework (tMOF), synthesized by a solvothermal method, was calcinated at 400 and 600 °C and the final products were used as a support for lipase immobilization. The material annealed at 400 °C (Ni-Co-Zn@400) had an improved surface area (66.01 m2/g) and pore volume (0.194 cm3/g), which showed the highest enzyme loading capacity (301 mg/g) with a specific activity of 0.196 U/mg, and could protect the enzyme against thermal denaturation at 65 °C. The optimal pH and temperature for the lipase were 8.0 and 45 °C but could tolerate pH levels 7.0-8.0 and temperatures 40-60 °C. Moreover, the immobilized enzyme (Ni-Co-Zn@Lipase, Ni-Co-Zn@400@Lipase, or Ni-Co-Zn@600@Lipase) could be recovered and reused for over seven cycles maintaining 80, 90, and 11% of its original activity and maintained a residual activity >90% after 40 storage days. The remarkable thermostability and storage stability of the immobilized lipase suggest that the rigid structure of the support acted as a protective shield against denaturation, while the improved pH tolerance toward the alkaline range indicates a shift in the ionization state attributed to unequal partitioning of hydroxyl and hydrogen ions within the microenvironment of the active site, suggesting that acidic residues may have been involved in forming an enzyme-support bond. The high enzyme loading capacity, specific activity, encouraging stability, and high recoverability of the tMOF@Lipase indicate that a multimetallic MOF could be a better platform for efficient enzyme immobilization.
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Affiliation(s)
- Frank Peprah Addai
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Jiacong Wu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Feng Lin
- Key Laboratory of Healthy Freshwater Aquaculture, Ministry of Agriculture, Zhejiang Institute of Freshwater Fisheries, Zhejiang, Huzhou 313001, China
| | - Xinnan Ma
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Juan Han
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Yuelin Liu
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Yang Zhou
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Yun Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
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Salama RS, Gouda MS, Aboud MFA, Alshorifi FT, El-Hallag AA, Badawi AK. Synthesis and characterization of magnesium ferrite-activated carbon composites derived from orange peels for enhanced supercapacitor performance. Sci Rep 2024; 14:8223. [PMID: 38589386 PMCID: PMC11001879 DOI: 10.1038/s41598-024-54942-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 02/19/2024] [Indexed: 04/10/2024] Open
Abstract
Supercapacitors have emerged as highly efficient energy storage devices, relying on electrochemical processes. The performance of these devices can be influenced by several factors, with key considerations including the selection of electrode materials and the type of electrolyte utilized. Transition metal oxide electrodes are commonly used in supercapacitors, as they greatly influence the electrochemical performance of these devices. Nonetheless, ferrites' low energy density poses a limitation. Hence, it is crucial to create electrode materials featuring unique and distinct structures, while also exploring the ideal electrolyte types, to enhance the electrochemical performance of supercapacitors incorporating magnesium ferrites (MF). In this study, we effectively prepared magnesium ferrites (MgFe2O4) supported on activated carbon (AC) derived from orange peels (OP) using a simple hydrothermal method. The resulting blends underwent comprehensive characterization employing various methods, including FTIR, XRD, TEM, SEM, EDX, and mapping analysis. Moreover, the electrochemical performance of MgFe2O4@AC composites was evaluated using GCD and CV techniques. Remarkably, the MF45-AC electrode material showed exceptional electrochemical behavior, demonstrating a specific capacitance of 870 F·g-1 within current density of 1.0 A g-1 and potential windows spanning from 0 to 0.5 V. Additionally, the prepared electrodes displayed exceptional cycling stability, with AC, MF, and MF45-AC retaining 89.6%, 94.2%, and 95.1% of their initial specific capacitance, respectively, even after 5000 cycles. These findings underscore the potential of MF-AC composites as superior electrode materials for supercapacitors. The development of such composites, combined with tailored electrolyte concentrations, holds significant promise for advancing the electrochemical performance and energy density of supercapacitor devices.
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Affiliation(s)
- Reda S Salama
- Basic Science Department, Faculty of Engineering, Delta University for Science and Technology, Gamasa, Egypt.
| | - Mostafa S Gouda
- Basic Science Department, Faculty of Engineering, Delta University for Science and Technology, Gamasa, Egypt
| | - Mohamed F Aly Aboud
- Department of Mechanical Engineering, Faculty of Engineering, Islamic University of Madinah, P.O.B. 170, 42351, Madinah, Saudi Arabia.
| | - Fares T Alshorifi
- Department of Chemistry, Faculty of Science, University of Saba Region, Marib, Yemen.
- Department of Chemistry, Faculty of Science, Sana'a University, Sana'a, Yemen.
| | - A A El-Hallag
- Basic Science Department, Faculty of Engineering, Delta University for Science and Technology, Gamasa, Egypt
| | - Ahmad K Badawi
- Civil Engineering Department, El-Madina Higher Institute for Engineering and Technology, Giza, 12588, Egypt
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Yahya NAA, Samir OM, Al-Ariki S, Ahmed AAM, Swillam MA. Synthesis of novel antibacterial nanocomposite CuO/Ag-modified zeolite for removal of MB dye. Sci Rep 2023; 13:14948. [PMID: 37696834 PMCID: PMC10495417 DOI: 10.1038/s41598-023-40790-6] [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: 02/12/2023] [Accepted: 08/16/2023] [Indexed: 09/13/2023] Open
Abstract
Novel CuO/Ag nanocomposites added zeolite (CAZ) were successfully fabricated, and their effectiveness as an antibacterial on S. aureus and MB removal was evaluated. EDX, XRD, and FTIR confirm the presence of the elemental compositions of CAZ. Friable CuO nanorods (10-70 nm in diameter) existed on the surface of the zeolite. Pure zeolite had a higher band gap (5.433 eV) and lower MB removal efficiency than CAZ. The adsorption method by CAZ was more effective at removing MB than photodegradation. 0.10 CAZ had the highest removal effectiveness (~ 99%) and adsorption capacity (~ 70.4 mg g-1) of MB. The inhibitory zone diameter for 0.005 CAZ against S. aureus was 20 mm, while 0.01 CAZ had a diameter of 17 mm. Azithromycin, ceftriaxone, and erythromycin antibiotics demonstrated lower or no efficacy against S. aureus than CAZ. Significant antibacterial activities and wastewater treatment were achieved by CAZ. The combination of photodegradation and adsorption enhanced pollutant removal. It will be interesting to study further the optimal molar ratio for MB removal (0.10 CAZ) in future investigations.
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Affiliation(s)
- Nabil A A Yahya
- Department of Physics, School of Sciences and Engineering, American University in Cairo, New Cairo, 11835, Cairo, Egypt
- Physics Department, Thamar University, 87246, Thamar, Yemen
| | - O M Samir
- Physics Department, Faculty of Science, Ibb University, Ibb, Yemen
- Aljanad University, Taiz, Yemen
| | - S Al-Ariki
- Physics Department, Thamar University, 87246, Thamar, Yemen
| | - Amira A M Ahmed
- Department of Physics, School of Sciences and Engineering, American University in Cairo, New Cairo, 11835, Cairo, Egypt
| | - Mohamed A Swillam
- Department of Physics, School of Sciences and Engineering, American University in Cairo, New Cairo, 11835, Cairo, Egypt.
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Chinnaiah K, Kannan K, Krishnamoorthy R, Gurushankar K. Datura metel L. leaf extract mediated sodium alginate polymer membrane for supercapacitor and food packaging applications. Int J Biol Macromol 2023; 242:125112. [PMID: 37257542 DOI: 10.1016/j.ijbiomac.2023.125112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 05/19/2023] [Accepted: 05/24/2023] [Indexed: 06/02/2023]
Abstract
Datura metel L. leaf extract mediated sodium alginate polymer membrane was successfully made using the solution casting technique. Electric, electrochemical, physicochemical and antimicrobial analyses of the prepared film were investigated. Functional groups of polysaccharides are identified in FTIR analysis and crystallinity/amorphous of the prepared samples was studied using XRD analysis. The prepared polymer membrane (DmMSA2) exhibits the ionic conductivity of 2.18 × 10-4 Scm-1, maximum specific capacitance of 131 F/g at a current density of 0.2 A/g and also exhibits a significant effect of antimicrobial activity against human pathogens. Hence, Datura metel L. leaf extract mediated polymer membranes are promising candidates for solid-electrolyte in supercapacitor devices and antimicrobial agents in food packaging applications.
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Affiliation(s)
- K Chinnaiah
- Multifunctional Laboratory, International Research Centre, Kalasalingam Academy of Research and Education, Krishnankoil, Virudhunagar 626 126, Tamil Nadu, India
| | - Karthik Kannan
- Institute of Agriculture Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai 602 105, Tamil Nadu, India
| | - Raman Krishnamoorthy
- Department of Biology, Gandhigram Rural Institute (Deemed to be university), Gandhigram, Dindigul 624 302, Tamil Nadu, India
| | - K Gurushankar
- Multifunctional Laboratory, International Research Centre, Kalasalingam Academy of Research and Education, Krishnankoil, Virudhunagar 626 126, Tamil Nadu, India; Laboratory of Computational Modelling Drugs, Higher Medical and Biological School, South Ural State University, 454 080 Chelyabinsk, Russia; Department of General Pathology, Saveetha Dental College and Hospitals, Saveetha University, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai 600 077, Tamil Nadu, India.
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Synthesis of high purity silver nanowires through a silver chloride-mediated polyol method. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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