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Malek M, Samipourgiri M, Rashidi A, Majidian N. Reduction of sulfur in fuel oil using Fe 2O 3 hybrid nanoadsorbent by solvent deasphalting and optimization of operational parameters with CCD. Sci Rep 2024; 14:1560. [PMID: 38238496 PMCID: PMC10796671 DOI: 10.1038/s41598-024-52166-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 01/15/2024] [Indexed: 01/22/2024] Open
Abstract
The present study investigated and tested the effect of adding three types of nanoadsorbents (multi-walled carbon nanotubes (MWCNT)) in pure form, multi-walled carbon nanotubes with Fe2O3 particles (MWCNT-Fe2O3) hybrid, and Silanated-Fe2O3 hybrid to heavy fuel oil to reduce sulfur using a deasphalting process with solvent. First, all three types of nanoadsorbents were synthesized. Then, the Central Composite Design (CCD) method was used to identify the parameters effective in deasphalting, such as the type of nanoadsorbent, the weight percentage of nanoadsorbent, and the solvent-to-fuel ratio, and to obtain their optimal values. Based on the optimization result, under laboratory temperature and pressure conditions, the highest percentage of sulfur reduction in deasphalted fuel (DAO) was obtained by adding 2.5% by weight of silanated-Fe2O3 nano-adsorbent and with a solvent-to-fuel ratio of 7.7 (The weight percentage of sulfur in DAO decreased from 3.5% by weight to 2.46%, indicating a decrease of 30%). Additionally, by increasing the temperature to 70 °C, in optimal conditions, the results revealed that the remaining sulfur percentage in DAO decreased to 2.13% by weight, indicating a decrease of 40%. Synthesized nanoadsorbents and asphaltene particles adsorbed on the surfaces of nanoadsorbents were evaluated by XRD, FTIR, FESEM, and TEM techniques.
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Affiliation(s)
- Mohammadreza Malek
- Chemical Engineering Department, Faculty of Engineering, Islamic Azad University, North Tehran Branch, Tehran, 1651153311, Iran
| | - Mohammad Samipourgiri
- Chemical Engineering Department, Faculty of Engineering, Islamic Azad University, North Tehran Branch, Tehran, 1651153311, Iran.
| | - Alimorad Rashidi
- Carbon and Nanotechnology Research Center, Research Institute of Petroleum Industry (RIPI), Tehran, 14857-33111, Iran
| | - Nasrolah Majidian
- Chemical Engineering Department, Faculty of Engineering, Islamic Azad University, North Tehran Branch, Tehran, 1651153311, Iran
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Levshakova A, Kaneva M, Borisov E, Panov M, Shmalko A, Nedelko N, Mereshchenko AS, Skripkin M, Manshina A, Khairullina E. Simultaneous Catechol and Hydroquinone Detection with Laser Fabricated MOF-Derived Cu-CuO@C Composite Electrochemical Sensor. MATERIALS (BASEL, SWITZERLAND) 2023; 16:7225. [PMID: 38005154 PMCID: PMC10673110 DOI: 10.3390/ma16227225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023]
Abstract
The conversion of metal-organic frameworks (MOFs) into advanced functional materials offers a promising route for producing unique nanomaterials. MOF-derived systems have the potential to overcome the drawbacks of MOFs, such as low electrical conductivity and poor structural stability, which have hindered their real-world applications in certain cases. In this study, laser scribing was used for pyrolysis of a Cu-based MOF ([Cu4{1,4-C6H4(COO)2}3(4,4'-bipy)2]n) to synthesize a Cu-CuO@C composite on the surface of a screen-printed electrode (SPE). Scanning electron microscopy, X-ray diffractometry, and Energy-dispersive X-ray spectroscopy were used for the investigation of the morphology and composition of the fabricated electrodes. The electrochemical properties of Cu-CuO@C/SPE were studied by cyclic voltammetry and differential pulse voltammetry. The proposed flexible electrochemical Cu-CuO@C/SPE sensor for the simultaneous detection of hydroquinone and catechol exhibited good sensitivity, broad linear range (1-500 μM), and low limits of detection (0.39 μM for HQ and 0.056 μM for CT).
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Affiliation(s)
- Aleksandra Levshakova
- Institute of Chemistry, St. Petersburg State University, St. Petersburg 199034, Russia; (A.L.); (M.K.); or (M.P.); (N.N.); (A.S.M.); (M.S.)
| | - Maria Kaneva
- Institute of Chemistry, St. Petersburg State University, St. Petersburg 199034, Russia; (A.L.); (M.K.); or (M.P.); (N.N.); (A.S.M.); (M.S.)
- Ioffe Institute, St. Petersburg 194021, Russia
| | - Evgenii Borisov
- Center for Optical and Laser Materials Research, St. Petersburg University, St. Petersburg 199034, Russia;
| | - Maxim Panov
- Institute of Chemistry, St. Petersburg State University, St. Petersburg 199034, Russia; (A.L.); (M.K.); or (M.P.); (N.N.); (A.S.M.); (M.S.)
- Faculty of Pharmaceutical Technology, St. Petersburg State Chemical Pharmaceutical University, Professor Popov Str., 14, Lit. A, St. Petersburg 197022, Russia
- Nanotechnology Research and Education Centre RAS, Saint Petersburg Academic University, St. Petersburg 194021, Russia;
| | - Alexandr Shmalko
- Nanotechnology Research and Education Centre RAS, Saint Petersburg Academic University, St. Petersburg 194021, Russia;
| | - Nikolai Nedelko
- Institute of Chemistry, St. Petersburg State University, St. Petersburg 199034, Russia; (A.L.); (M.K.); or (M.P.); (N.N.); (A.S.M.); (M.S.)
| | - Andrey S. Mereshchenko
- Institute of Chemistry, St. Petersburg State University, St. Petersburg 199034, Russia; (A.L.); (M.K.); or (M.P.); (N.N.); (A.S.M.); (M.S.)
| | - Mikhail Skripkin
- Institute of Chemistry, St. Petersburg State University, St. Petersburg 199034, Russia; (A.L.); (M.K.); or (M.P.); (N.N.); (A.S.M.); (M.S.)
| | - Alina Manshina
- Institute of Chemistry, St. Petersburg State University, St. Petersburg 199034, Russia; (A.L.); (M.K.); or (M.P.); (N.N.); (A.S.M.); (M.S.)
| | - Evgeniia Khairullina
- Institute of Chemistry, St. Petersburg State University, St. Petersburg 199034, Russia; (A.L.); (M.K.); or (M.P.); (N.N.); (A.S.M.); (M.S.)
- School of Physics and Engineering, ITMO University, St. Petersburg 191002, Russia
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Shayesteh H, Khosrowshahi MS, Mashhadimoslem H, Maleki F, Rabbani Y, Emrooz HBM. Durable superhydrophobic/superoleophilic melamine foam based on biomass-derived porous carbon and multi-walled carbon nanotube for oil/water separation. Sci Rep 2023; 13:4515. [PMID: 36934146 PMCID: PMC10024746 DOI: 10.1038/s41598-023-31770-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 03/16/2023] [Indexed: 03/20/2023] Open
Abstract
In the present study, fabrications of two eco-friendly superhydrophobic/superoleophilic recyclable foamy-based adsorbents for oil/water mixture separation were developed. Hierarchically biomass (celery)-derived porous carbon (PC) and multi-walled carbon nanotube (MWCNT) were firstly synthesized and loaded on pristine melamine foam (MF) by the simple dip-coating approach by combining silicone adhesive to create superhydrophobic/superoleophilic, recyclable, and reusable three-dimensional porous structure. The prepared samples have a large specific surface area of 240 m2/g (MWCNT), 1126 m2/g (PC), and good micro-mesoporous frameworks. The water contact angle (WCA) values of the as-prepared foams, PC/MF and MWCNT/MF, not only were 159.34° ± 1.9° and 156.42° ± 1.6°, respectively but also had oil contact angle (OCA) of equal to 0° for a wide range of oils and organic solvents. Therefore, PC/MF and MWCNT/MF exhibited superhydrophobicity and superoleophilicity properties, which can be considered effective adsorbents in oil/water mixture separations. In this context, superhydrophobic/superoleophilic prepared foams for kind of different oils and organic solvents were shown to have superior separation performance ranges of 54-143 g/g and 46-137 g/g for PC/MF and MWCNT/MF, respectively, suggesting a new effective porous material for separating oil spills. Also, outstanding recyclability and reusability of these structures in the ten adsorption-squeezing cycles indicated that the WCA and sorption capacity has not appreciably changed after soaking into acidic (pH = 2) and alkaline (pH = 12) as well as saline (3.5% NaCl) solutions. More importantly, the reusability and chemical durability of the superhydrophobic samples made them good opportunities for use in different harsh conditions for oil-spill cleanup.
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Affiliation(s)
- Hadi Shayesteh
- Faculty of Chemical Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, 16846, Iran
| | - Mobin Safarzadeh Khosrowshahi
- Nanotechnology Department, School of Advanced Technologies, Iran University of Science and Technology (IUST), Narmak, Tehran, 16846, Iran
| | - Hossein Mashhadimoslem
- Faculty of Chemical Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, 16846, Iran
| | - Farid Maleki
- Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, No. 424, Hafez St, Tehran, Iran
| | - Yahya Rabbani
- School of Chemical Engineering, College of Engineering, University of Tehran (UT), Tehran, Iran
| | - Hosein Banna Motejadded Emrooz
- Nanotechnology Department, School of Advanced Technologies, Iran University of Science and Technology (IUST), Narmak, Tehran, 16846, Iran.
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