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Abdelkhalek MM, Mohamed AM, Abdallah RZ, Khedr GE, Siam R, Allam NK. Zeolitic imidazolate framework-8 encapsulated with Mo-based polyoxometalates as surfaces with antibacterial activity against Escherichia coli. NANOSCALE ADVANCES 2024; 6:3355-3366. [PMID: 38933851 PMCID: PMC11197405 DOI: 10.1039/d4na00142g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 05/01/2024] [Indexed: 06/28/2024]
Abstract
Bacterial infections represent a major global health concern, causing millions of deaths and a significant economic burden. The development of antibacterial nanoporous surfaces with potential mechano-bactericidal effects can revolutionize infection control practices. In this study, a hybrid material of zeolitic imidazolate framework-8 (ZIF-8) doped with phosphomolybdic acid (PMA) was synthesized and characterized by field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and N2 sorption isotherms. PMA@ZIF-8 performance as an antibacterial agent against E. coli was superior to that of its individual constituents, suggesting a synergistic effect of PMA and ZIF-8. The incorporation of PMA into ZIF-8 significantly enhanced its antibacterial efficacy, as evidenced by a twofold reduction in MIC (375 μg mL-1 vs. 750 μg mL-1) and a 4.35 times increase in the bactericidal kinetics rate constant. The time-kill curve experiment revealed that PMA@ZIF-8 achieved a 3-log reduction within 7 hours, whereas ZIF-8 required 24 hours to reach the same level of reduction. The density functional theory (DFT) calculated bandgap of PMA@ZIF-8 was significantly less than that of ZIF-8. Also, PMA@ZIF-8 has caused the elimination of 56.72% of the thiol group as detected by Ellman's assay. Accordingly, PMA@ZIF-8 can be both computationally and experimentally demonstrated as an oxidative nanozyme. PMA@ZIF-8's surface topology revealed nanorod protrusions, suggesting a potential mechano-bactericidal effect, which was confirmed by live/dead assay on PMA@ZIF-8-coated glass. This study highlights the potential of the PMA@ZIF-8 hybrid as a highly effective antibacterial agent, holding promise for creating multifunctional antibacterial surfaces.
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Affiliation(s)
- Mariam M Abdelkhalek
- Energy Materials Laboratory, Physics Department, School of Sciences and Engineering, The American University in Cairo New Cairo 11835 Egypt
| | - Aya M Mohamed
- Department of Chemistry, Faculty of Science, Cairo University Cairo 12613 Egypt
| | - Rehab Z Abdallah
- Department of Biology, School of Sciences and Engineering, The American University in Cairo New Cairo 11835 Egypt
| | - Ghada E Khedr
- Department of Analysis and Evaluation, Egyptian Petroleum Research Institute Cairo 11727 Egypt
| | - Rania Siam
- Department of Biology, School of Sciences and Engineering, The American University in Cairo New Cairo 11835 Egypt
| | - Nageh K Allam
- Energy Materials Laboratory, Physics Department, School of Sciences and Engineering, The American University in Cairo New Cairo 11835 Egypt
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Absalyamova M, Nurmyrza M, Nurlan N, Bae S, Lee W. The effect of carbonized zeolitic imidazolate framework-67 (ZIF-67) support on the reactivity and selectivity of bimetal-catalytic aqueous NO 3- reduction. CHEMOSPHERE 2024; 358:142161. [PMID: 38685335 DOI: 10.1016/j.chemosphere.2024.142161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 04/17/2024] [Accepted: 04/25/2024] [Indexed: 05/02/2024]
Abstract
A metallic catalyst, Cobalt N-doped Carbon (Co@NC), was obtained from Zeolitic-Imidazolate Framework-67 (ZIF-67) for efficient aqueous nitrate (NO3-) removal. This advanced catalyst indicated remarkable efficiency by generating valuable ammonium (NH3/NH4+) via an environmentally friendly production technique during the nitrate treatment. Among various metals (Cu, Pt, Pd, Sn, Ru, and Ni), 3.6%Pt-Co@NC exhibited an exceptional nitrate removal, demonstrating a complete removal of 60 mg/L NO3--N (265 mg/L NO3-) in 30 min with the fastest removal kinetics (11.4 × 10-2 min-1) and 99.5% NH4+ selectivity. The synergistic effect of bimetallic Pt-Co@NC led to 100% aqueous NO3- removal, outperforming the reactivity by bare ZIF-67 (3.67%). The XPS analysis illustrated Co's promotor role for NO3- reduction to less oxidized nitrogen species and Pt's hydrogenation role for further reduction to NH4+. The durability test revealed a slight decrease in NO3- removal, which started from the third cycle (95%) and slowly proceeded to the sixth cycle (80.2%), while NH4+ selectivity exceeded 82% with no notable Co or Pt leaching throughout seven consecutive cycles. This research shed light on the significance of the impregnated Pt metal and Co exposed on the Co@NC surface for the catalytic nitrate treatment, leading to a sustainable approach for the effective removal of nitrate and economical NH4+ production.
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Affiliation(s)
- Miriam Absalyamova
- Laboratory of Environmental Systems, National Laboratory Astana, Nazarbayev University, Astana, 010000, Kazakhstan
| | - Meiirzhan Nurmyrza
- Laboratory of Environmental Systems, National Laboratory Astana, Nazarbayev University, Astana, 010000, Kazakhstan; Civil and Environmental Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana, 010000, Kazakhstan
| | - Nurbek Nurlan
- Laboratory of Environmental Systems, National Laboratory Astana, Nazarbayev University, Astana, 010000, Kazakhstan
| | - Sungjun Bae
- Civil and Environmental Engineering, College of Engineering, Konkuk University, Seoul, 05029, South Korea
| | - Woojin Lee
- Laboratory of Environmental Systems, National Laboratory Astana, Nazarbayev University, Astana, 010000, Kazakhstan; Civil and Environmental Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana, 010000, Kazakhstan.
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Khamis A, Mahmoud AS, El Naga AOA, Shaban SA, Youssef NA. Activation of peroxymonosulfate with ZIF-67-derived Co/N-doped porous carbon nanocubes for the degradation of Congo red dye. Sci Rep 2024; 14:12313. [PMID: 38811620 PMCID: PMC11137160 DOI: 10.1038/s41598-024-62029-8] [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: 07/16/2023] [Accepted: 05/13/2024] [Indexed: 05/31/2024] Open
Abstract
In this study, porous carbon nanocubes encapsulated magnetic metallic Co nanoparticles (denoted as Co@N-PCNC) was prepared via pyrolyzing ZIF-67 nanocubes precursor at 600 °C and characterized by various technologies. It was used to activate peroxymonosulfate (PMS) to degrade Congo red (CR) dye efficiently. Over 98.45% of 50 mg L-1 CR was degraded using 0.033 mM PMS activated by 75 mg L-1 Co@N-PCNC within 12 min. The free radical quenching experiments were performed to reveal the nature of the reactive oxygen species radicals generated throughout the catalytic oxidation of CR. The effects of common inorganic anions and the water matrix on CR removal were studied. Moreover, the results of the kinetic study revealed the suitability of the pseudo-first-order and Langmuir-Hinshelwood kinetic models for illustrating CR degradation using the Co@N-PCNC/PMS system. Ultimately, the Co@N-PCNC displayed good operational stability, and after five cycles, the CR removal rate can still maintain over 90% after 12 min.
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Affiliation(s)
- Aya Khamis
- Chemistry Department, Faculty of Women, Ain Shams University, Cairo, Egypt
| | - Aya S Mahmoud
- Chemistry Department, Faculty of Women, Ain Shams University, Cairo, Egypt
| | - Ahmed O Abo El Naga
- Catalysis Department, Refining Division, Egyptian Petroleum Research Institute, Nasr City, 11727, Cairo, Egypt.
| | - Seham A Shaban
- Catalysis Department, Refining Division, Egyptian Petroleum Research Institute, Nasr City, 11727, Cairo, Egypt.
| | - Nadia A Youssef
- Chemistry Department, Faculty of Women, Ain Shams University, Cairo, Egypt
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Tran TTN, Truong TK, Yu J, Peng L, Liu X, Nguyen LHT, Park S, Kawazoe Y, Phan TB, Tran NHT, Vu NH, Tran NQ. Dopant-Induced Charge Redistribution on the 3D Sponge-like Hierarchical Structure of Quaternary Metal Phosphides Nanosheet Arrays Derived from Metal-Organic Frameworks for Natural Seawater Splitting. ACS APPLIED MATERIALS & INTERFACES 2024; 16:2270-2282. [PMID: 38181410 DOI: 10.1021/acsami.3c15117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2024]
Abstract
Dopant-induced electron redistribution on transition metal-based materials has long been considered an emerging new electrocatalyst that is expected to replace noble-metal-based electrocatalysts in natural seawater electrolysis; however, their practical applications remain extremely daunting due to their sluggish kinetics in natural seawater. In this work, we developed a facile strategy to synthesize the 3D sponge-like hierarchical structure of Ru-doped NiCoFeP nanosheet arrays derived from metal-organic frameworks with remarkable hydrogen evolution reaction (HER) performance in natural seawater. Based on experimental results and density functional theory calculations, Ru-doping-induced charge redistribution on the surface of metal active sites has been found, which can significantly enhance the HER activity. As a result, the 3D sponge-like hierarchical structure of Ru-NiCoFeP nanosheet arrays achieves low overpotentials of 52, 149, and 216 mV at 10, 100, and 500 mA cm-2 in freshwater alkaline, respectively. Notably, the electrocatalytic activity of the Ru-NiCoFeP electrocatalyst in simulated alkaline seawater and natural alkaline seawater is nearly the same as that in freshwater alkaline. This electrocatalyst exhibits superior catalytic properties with outstanding stability under a high current density of 85 mA cm-2 for more than 100 h in natural seawater, which outperforms state-of-the-art 20% Pt/C at high current density. Our work provides valuable guidelines for developing a low-cost and high-efficiency electrocatalyst for natural seawater splitting.
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Affiliation(s)
- Thuy Tien Nguyen Tran
- Faculty of Materials Science and Technology, University of Science, Ho Chi Minh City 700000, Viet Nam
- Center for Innovative Materials and Architectures, Ho Chi Minh City 700000, Viet Nam
- Vietnam National University, Ho Chi Minh City 700000, Viet Nam
| | - Thuy-Kieu Truong
- Department of Mechanical Engineering, Hanbat National University (HBNU), 125 Dongseo-daero, Yuseong-gu, Daejeon 34158, Republic of Korea
| | - Jianmin Yu
- Key Laboratory of Rare Earths, Chinese Academy of Sciences, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341119, P. R. China
| | - Lishan Peng
- Key Laboratory of Rare Earths, Chinese Academy of Sciences, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341119, P. R. China
| | - Xinghui Liu
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong 999077, China
| | - Linh Ho Thuy Nguyen
- Center for Innovative Materials and Architectures, Ho Chi Minh City 700000, Viet Nam
- Vietnam National University, Ho Chi Minh City 700000, Viet Nam
| | - Sungkyun Park
- Department of Physics, Pusan National University, Busan 46241, Republic of Korea
| | - Yoshiyuki Kawazoe
- New Industry Creation Hatchery Center, Tohoku University, Sendai 980-8579, Japan
| | - Thang Bach Phan
- Center for Innovative Materials and Architectures, Ho Chi Minh City 700000, Viet Nam
- Vietnam National University, Ho Chi Minh City 700000, Viet Nam
| | - Nhu Hoa Thi Tran
- Faculty of Materials Science and Technology, University of Science, Ho Chi Minh City 700000, Viet Nam
- Vietnam National University, Ho Chi Minh City 700000, Viet Nam
| | - Nam Hoang Vu
- Faculty of Materials Science and Technology, University of Science, Ho Chi Minh City 700000, Viet Nam
- Vietnam National University, Ho Chi Minh City 700000, Viet Nam
| | - Ngoc Quang Tran
- Center for Innovative Materials and Architectures, Ho Chi Minh City 700000, Viet Nam
- Vietnam National University, Ho Chi Minh City 700000, Viet Nam
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Sadek MS, Khedr GE, Messih MFA, Ismail MAH. Experimental and DFT study of photocatalytic activity of reduced graphene oxide/copper sulfide composite for removal of organic dyes from water. Sci Rep 2023; 13:15636. [PMID: 37731017 PMCID: PMC10511407 DOI: 10.1038/s41598-023-42680-3] [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: 02/01/2023] [Accepted: 09/13/2023] [Indexed: 09/22/2023] Open
Abstract
In this work, successful nanocomposites composed of different ratios of reduced graphene oxide and copper sulphide (xCuS-rGO) were fabricated to aid in treating water contaminated with organic dyes. XRD, TEM, SEM, XPS, IR, EDX and BET were applied for the characterization of (CuS-rGO). The photocatalytic strength of the prepared nanocomposites was evaluated using artificial sunlight irradiation. The nanocomposites were tested for their ability to degrade both anionic and cationic organic dyes, including amaranth and rhodamine B (RhB). The excellent photocatalytic strength of our composites, relative to pristine CuS and rGO, was interpreted as rGO sheets being very porous. In addition, the charge moved efficiently from rGO to CuS. The combined properties enhanced the efficiency of photodegradation of CuS-rGO composite across the dyes under the illumination of simulated sunlight. The electron transportation from rGO sheets to the CuS conduction band enhances the charge separation and transportation. The role of superoxide radicals in photocatalytic degradation was unveiled and the interactions between the studied dyes and our catalysts were investigated by density functional theory study and scavenging investigation. This work gives new ideas about the preparation and properties of (CuS-rGO) composites and their broad application in solving environmental problems.
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Affiliation(s)
- Mohamed S Sadek
- Chemistry Department, Faculty of Science, Ain-Shams University, Cairo, Egypt.
| | - Ghada E Khedr
- Department of Analysis and Evaluation, Egyptian Petroleum Research Institute (EPRI), Cairo, 11727, Egypt
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Mohamed AM, Sayed DM, Allam NK. Optimized Fabrication of Bimetallic ZnCo Metal-Organic Framework at NiCo-Layered Double Hydroxides for Multiple Storage and Capability Synergy All-Solid-State Supercapacitors. ACS APPLIED MATERIALS & INTERFACES 2023; 15:16755-16767. [PMID: 36947435 DOI: 10.1021/acsami.3c00087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Rational design and structural regulation of hybrid nanomaterials with superior electrochemical performance are crucial for developing sustainable energy storage platforms. Among these materials, NiCo-layered double hydroxides (NiCo-LDHs) demonstrate an exceptional charge storage capabilities owing to their tunable 2D lamellar structure, large interlayer spacing, and rich redox electrochemically active sites. However, NiCo-LDHs still suffer from sever agglomeration of their particles with limited charge transfer rates, resulting in an inadequate rate capability. In this study, bimetallic ZnCo-metal organic framework (MOF) tripods were grown on the surface of NiCo-LDH nanowires, which significantly reduced the self-agglomeration and stacking of the NiCo-LDH nanowire arrays, offering more accessible active sites for charge transfer and shortening the path for ion diffusion. The fabricated hybrid ZnCo-MOF@NiCo-LDH and its individual counterparts were tested as supercapacitor electrodes. The ZnCo-MOF@NiCo-LDH electrode demonstrated a remarkable specific capacitance of 1611 F g-1 at 2 A g-1 with an enhanced rate capability of 66% from 2 to 20 A g-1. Moreover, an asymmetric all solid-state supercapacitor device was constructed using ZnCo-MOF@NiCo-LDH and palm tree-derived activated carbon (P-AC) as positive and negative poles, respectively. The constructed device can store a high specific energy of 44.5 Wh Kg-1 and deliver a specific power of 876.7 W Kg-1 with outstanding Columbic efficiency over 10,000 charging/discharging cycles at 15 A g-1.
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Affiliation(s)
- Aya M Mohamed
- Energy Materials Laboratory (EML), School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt
- Department of Chemistry, Faculty of Science, Cairo University, Cairo 12613, Egypt
| | - Doha M Sayed
- Energy Materials Laboratory (EML), School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt
- Department of Chemistry, Faculty of Science, Cairo University, Cairo 12613, Egypt
| | - Nageh K Allam
- Energy Materials Laboratory (EML), School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt
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Molaei R, Moradi M, Kahyaoğlu LN, Forough M. Application of bacterial nanocellulose decorated with zeolitic imidazolate framework (ZIF-L) as a platform for food freshness monitoring. Int J Biol Macromol 2022; 223:713-721. [PMID: 36372103 DOI: 10.1016/j.ijbiomac.2022.11.051] [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: 08/17/2022] [Revised: 10/15/2022] [Accepted: 11/06/2022] [Indexed: 11/13/2022]
Abstract
Recently, the food freshness indicator (FFI) has garnered great interest from consumers and food producers. A novel FFI based on bacterial nanocellulose (BNC)/zeolitic imidazolate framework-L (ZIF-L) and grape anthocyanins was developed and characterized using field emission scanning electron microscopy, Fourier-transform infrared, X-ray diffraction, water contact angle, and BET techniques. The results confirmed that the BNC fibrils were decorated by in situ growth of ZIF-L, with a 3D flower-shaped structure and randomly multiple sharp-edged petals, and hydroxyl and oxygenated heterocycle aromatic ring functional groups on its surface. The reversibility, color stability performance, and moisture sorption of FFI were studied and its applicability in a two-layer arrangement as a visual freshness monitoring of shrimp and minced beef was evaluated. The FFI was able to distinguish (ΔE > 5) the fresh, medium fresh, and spoiled minced meat and shrimp visually during 10 and 4 days of storage at 4 °C, respectively. Also, monitoring of food chemical and microbiological parameters approved the correlation of food spoilage with the color parameters of FFI. These results confirmed the function of ZIF-L in the fabrication of highly pH-sensitive food intelligent packaging material.
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Affiliation(s)
- Rahim Molaei
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Urmia University, 1177 Urmia, Iran.
| | - Mehran Moradi
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Urmia University, 1177 Urmia, Iran.
| | | | - Mehrdad Forough
- Department of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
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