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Xia S, Tao J, Zhao Y, Men Y, Chen C, Hu Y, Zhu G, Chu Y, Yan B, Chen G. Application of waste derived magnetic acid-base bifunctional CoFe/biochar/CaO as an efficient catalyst for biodiesel production from waste cooking oil. CHEMOSPHERE 2024; 350:141104. [PMID: 38171400 DOI: 10.1016/j.chemosphere.2023.141104] [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: 10/19/2023] [Revised: 12/17/2023] [Accepted: 12/31/2023] [Indexed: 01/05/2024]
Abstract
The loss of active components, weak acid resistance, and low recover efficiency of common Ca-based catalysts limited its further development and application. In this study, to effectively produce biodiesel from waste cooking oil (WCO), a green and recyclable magnetic acid-base bifunctional CoFe/biochar/CaO catalyst was prepared from sargassum and river snail shell waste via hydrothermal method. The catalysts' structure and properties were investigated by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), CO2/NH3 temperature programmed desorption (CO2/NH3 TPD), etc., The prepared catalyst mainly consisted of the carbon skeleton, CoFe alloy, and CaO. CoFe alloy provided catalyst's ferromagnetism for magnetic separation as well as acid sites for transesterification of WCO. Ca and other metal species with nanoscale (∼5.64 nm) were dispersively anchored on sargassum biochar surface, thereby leading to good catalytic activity (99.21% biodiesel yield) and stability (91.70% biodiesel yield after the 5th cycle). In addition, response surface methodology-Box-Behnken design (RSM-BBD) revealed the optimal operational conditions were 16:1 methanol/oil molar ratio, 3 wt% catalyst dosage, 73 °C for 157 min. The maximum biodiesel yield predicted value was 98.29% and the experimental value was 99.21%, indicating good satisfaction of the established model. Moreover, the quality of WCO biodiesel met the ASTM D6751 standards. This study benefits magnetic waste-derived acid-base bifunctional catalysts for the disposal of WCO towards sustainable biodiesel production.
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Affiliation(s)
- Shaige Xia
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, China
| | - Junyu Tao
- Interdisciplinary Innovation Lab for Environment & Energy/School of Mechanical Engineering, Tianjin University of Commerce, Tianjin, 300134, China.
| | - Yihua Zhao
- Tianjin Eco-City Water Investment and Construction Ltd, China.
| | - Yanhui Men
- Qingdao Spring Water-treatment Co., Ltd., China
| | - Chao Chen
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, China
| | - Yongjie Hu
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, China
| | - Guangbin Zhu
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, China
| | - Yiwei Chu
- Tianjin Eco-City Water Investment and Construction Ltd, China
| | - Beibei Yan
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, China
| | - Guanyi Chen
- Qingdao Spring Water-treatment Co., Ltd., China
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Aslani A, Masoumi H, Ghanadzadeh Gilani H, Ghaemi A. Improving adsorption performance of L-ascorbic acid from aqueous solution using magnetic rice husk as an adsorbent: experimental and RSM modeling. Sci Rep 2023; 13:10860. [PMID: 37407701 DOI: 10.1038/s41598-023-38093-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 07/03/2023] [Indexed: 07/07/2023] Open
Abstract
In this research, rice husk (RH) was utilized to prepare a magnetic adsorbent for adsorption of ascorbic acid (AA). The magnetic agent is iron(III) chloride (FeCl3). The impact of acid concentration in the range of 400-800 ppm, adsorbent dosage in the range of 0.5-1 g, and contact time in the range of 10-130 min were studied. The Langmuir model had the highest R2 of 0.9982, 0.9996, and 0.9985 at the temperature of 15, 25, and 35 °C, respectively, and the qmax values in these temperatures have been calculated at 19.157, 31.34, and 38.75 mg/g, respectively. The pseudo-second-order kinetic model had the best agreement with the experimental results. In this kinetic model, the values of q have been measured at 36.496, 45.248, and 49.019 mg/g at the acid concentration of 418, 600, and 718 ppm, respectively. The values of ΔHo and ΔSo were measured 31.972 kJ/mol and 120.253 kJ/mol K, respectively, which proves the endothermic and irregularity nature of the adsorption of AA. Besides, the optimum conditions of the design-expert software have been obtained 486.929 ppm of acid concentration, 0.875 g of the adsorbent dosage, and 105.397 min of the contact time, and the adsorption efficiency in these conditions was determined at 92.94%. The surface area of the RH and modified RH was determined of 98.17 and 120.23 m2/g, respectively, which confirms the high surface area of these two adsorbents.
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Affiliation(s)
- Azam Aslani
- Department of Chemical Engineering, University of Guilan, Rasht, 4199613776, Iran
| | - Hadiseh Masoumi
- School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Tehran, 13114-16846, Iran
| | | | - Ahad Ghaemi
- School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Tehran, 13114-16846, Iran.
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Khan MM, Kadian AK, Sharma RP. Attempt to mitigate marine engine emissions with improved performance by the investigation of alcohol inclusion in sunflower biodiesel-sunflower oil-diesel blend. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:33974-33991. [PMID: 36502484 DOI: 10.1007/s11356-022-24147-6] [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: 08/11/2022] [Accepted: 11/06/2022] [Indexed: 06/17/2023]
Abstract
The quaternary blends (diesel-biodiesel-vegetable oil-alcohol) offer enormous potential for reducing fossil fuel usage and mitigating air pollution caused by marine diesel engines. Biodiesel and alcohol are alternate fuels possessing high oxygen content, ensuring clean combustion. Vegetable oil is beneficial in saving diesel contribution and increasing engine lubrication. The objective of the present work was to reduce the dependency on conventional diesel and to come up with cleaner fuel that can also improve engine performance. This experimental work aims to lower exhaust emissions by fueling a single-cylinder, four-stroke direct-injection diesel engine with novel quaternary blends comprising diesel (50%), sunflower biodiesel (25%), sunflower oil (5%), and alcohol (20%). In order to develop cleaner fuel than diesel, different quaternary blends were prepared by varying the length of the carbon chain of alcohols in the blends, namely, DBOEth20, DBOProp20, DBOBut20, DBOHep20, and DBODec20. The performance emissions of quaternary blends were tested at varied engine loads from 5 to 20 Nm (full load), while engine speed was fixed at 1800 rpm. The results indicate that DBOProp20 resulted in the lowest fuel consumption and highest thermal efficiency. DBOProp20 reduced CO2, NOx, and smoke emissions by 19.6%, 9.9%, and 85.7%, as compared to diesel. However, DBODec20 succeed in mitigating CO emission by 41.37% at 100% load. DBOBut20 proved to be most promising in reducing UHC emission by a maximum of 71.69% at 100% load. The highest BTE of 10.98% with lowest BSFC of 13.04% was recorded for DBOProp20 at 100% engine load, in comparison to pure diesel.
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Affiliation(s)
- Md Modassir Khan
- Department of Mechanical Engineering, Birla Institute of Technology, Mesra, Ranchi, India
| | - Arun Kumar Kadian
- Department of Mechanical Engineering, Birla Institute of Technology, Mesra, Ranchi, India.
| | - Rabindra Prasad Sharma
- Department of Mechanical Engineering, Birla Institute of Technology, Mesra, Ranchi, India
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Zhang Y, Li W, Wang J, Jin J, Zhang Y, Cheng J, Zhang Q. Advancement in utilization of magnetic catalysts for production of sustainable biofuels. Front Chem 2023; 10:1106426. [PMID: 36704618 PMCID: PMC9871569 DOI: 10.3389/fchem.2022.1106426] [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: 11/23/2022] [Accepted: 12/06/2022] [Indexed: 01/12/2023] Open
Abstract
In this study, we summarize recent advances in the synthesis of magnetic catalysts utilized for biodiesel production, particularly focusing on the physicochemical properties, activity, and reusability of magnetic mixed metal oxides, supported magnetic catalysts, ionic acid-functionalized magnetic catalysts, heteropolyacid-based magnetic catalysts, and metal-organic framework-based magnetic catalysts. The prevailing reaction conditions in the production of biodiesel are also discussed. Lastly, the current limitations and challenges for future research needs in the magnetic catalyst field are presented.
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Affiliation(s)
- Yutao Zhang
- Engineering Technology Center of Control and Remediation of Soil Contamination of Guizhou Science and Technology Department, Anshun University, Anshun, Guizhou, China,School of Chemistry and Chemical Engineering, Anshun University, Anshun, Guizhou, China,College Rural Revitalization Research Center of Guizhou, Anshun University, Anshun, Guizhou, China,*Correspondence: Yutao Zhang, ; Qiuyun Zhang,
| | - Weihua Li
- Engineering Technology Center of Control and Remediation of Soil Contamination of Guizhou Science and Technology Department, Anshun University, Anshun, Guizhou, China
| | - Jialu Wang
- College Rural Revitalization Research Center of Guizhou, Anshun University, Anshun, Guizhou, China
| | - Jiaxing Jin
- School of Chemistry and Chemical Engineering, Anshun University, Anshun, Guizhou, China
| | - Yixi Zhang
- Engineering Technology Center of Control and Remediation of Soil Contamination of Guizhou Science and Technology Department, Anshun University, Anshun, Guizhou, China
| | - Jingsong Cheng
- School of Chemistry and Chemical Engineering, Anshun University, Anshun, Guizhou, China
| | - Qiuyun Zhang
- Engineering Technology Center of Control and Remediation of Soil Contamination of Guizhou Science and Technology Department, Anshun University, Anshun, Guizhou, China,School of Chemistry and Chemical Engineering, Anshun University, Anshun, Guizhou, China,College Rural Revitalization Research Center of Guizhou, Anshun University, Anshun, Guizhou, China,*Correspondence: Yutao Zhang, ; Qiuyun Zhang,
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Coutino-Gonzalez E, Ávila-Gutiérrez M, Hernández-Palomares A, Olvera LI, Rodríguez-Valadez FJ, Espejel-Ayala F. Biodiesel Production Using Lithium Metasilicate Synthesized from Non-Conventional Sources. MATERIALS (BASEL, SWITZERLAND) 2022; 15:6753. [PMID: 36234094 PMCID: PMC9571811 DOI: 10.3390/ma15196753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 06/16/2023]
Abstract
A facile and versatile process to produce lithium metasilicate (Li2SiO3) from non-conventional silicon sources (two different sand sources from the central area of México) was developed. The synthesis protocol based on a solid-state reaction followed by a hydrothermal treatment resulted in highly pure lithium metasilicate, as corroborated by XRD, SEM-EDS, and XPS analysis. Furthermore, lithium metasilicate was used as a heterogeneous catalyst for biodiesel production from soybean oil, where conversion yields were compared according to the silicon source used (based on chemical purity, stability, and yield efficiency). The best performing metasilicate material displayed a maximum of 95.5% of biodiesel conversion under the following conditions: 180 min, 60 °C, 5% catalyst (wt./wt., catalyst-to-oil), and 18:1 (methanol:oil). This contribution opens up alternatives for the production of lithium metasilicate using non-conventional precursors and its use as an alternative catalyst in biodiesel production, displaying better chemical stability against humidity than conventional heterogeneous catalysts.
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Affiliation(s)
- Eduardo Coutino-Gonzalez
- Centro de Investigaciones en Óptica, A. C. Lomas del Bosque 115, Colonia Lomas del Campestre, León, Guanajuato 37150, Mexico
| | - Mario Ávila-Gutiérrez
- Centro de Investigaciones en Óptica, A. C. Lomas del Bosque 115, Colonia Lomas del Campestre, León, Guanajuato 37150, Mexico
| | - Arnold Hernández-Palomares
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro, s/n, Pedro Escobedo, Querétaro 76703, Mexico
| | - Lilian I. Olvera
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de Mexico, Apartado Postal 70-360, CU, Coyoacán, Ciudad de México 04510, Mexico
| | - Francisco J. Rodríguez-Valadez
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro, s/n, Pedro Escobedo, Querétaro 76703, Mexico
| | - Fabricio Espejel-Ayala
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro, s/n, Pedro Escobedo, Querétaro 76703, Mexico
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Alizadeh M, Peighambardoust SJ, Foroutan R, Azimi H, Ramavandi B. Surface magnetization of hydrolyzed Luffa Cylindrica biowaste with cobalt ferrite nanoparticles for facile Ni 2+ removal from wastewater. ENVIRONMENTAL RESEARCH 2022; 212:113242. [PMID: 35413302 DOI: 10.1016/j.envres.2022.113242] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/22/2022] [Accepted: 04/01/2022] [Indexed: 06/14/2023]
Abstract
A novel magnetic adsorbent based on hydrolyzed Luffa Cylindrica (HLC) was synthesized through the chemical co-precipitation technique, and its potential was evaluated in the adsorptive elimination of divalent nickel ions from water medium. Morphological assessment and properties of the adsorbent were performed using FTIR, SEM, EDX, XRD, BET, and TEM techniques. The effect of pH, temperature, time and nickel concentration on the removal efficiency was studied, and pH = 6, room temperature (25 °C), contact time of 60 min, and Ni2+ ion concentration of 10 mg.L-1 were introduced as the optimal values. At optimal conditions, the removal efficiency of Ni2+ ions using HLC and HLC/CoFe2O4 magnetic composite was calculated as 96.38 and 99.13%, respectively. The adsorption process kinetic followed a pseudo-first-order model. Langmuir isotherm was suitable for modelling the experimental data of the Ni2+ adsorption. The maximum elimination capacity of HLC and HLC/CoFe2O4 samples was calculated as 42.75 and 44.42 mg g-1, respectively. Furthermore, thermodynamic investigations proved the spontaneous and exothermic nature of the process. The adsorption efficiency was decreased with increasing the content of Ca2+ and Na + cations in aqueous media. During reusability of the synthesized adsorbents, it was found that after 8 cycles, no significant decrease has occurred in the adsorption efficiency. In addition, real wastewater treatment results proved that HLC/CoFe2O4 magnetic composite has an excellent performance in removal of heavy metals pollutant from shipbuilding effluent.
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Affiliation(s)
- Mehran Alizadeh
- Faculty of Chemical and Petroleum Engineering, University of Tabriz, Tabriz, 5166616471, Iran
| | | | - Rauf Foroutan
- Faculty of Chemical and Petroleum Engineering, University of Tabriz, Tabriz, 5166616471, Iran
| | - Hamidreza Azimi
- Department of Chemical Engineering, Faculty of Engineering, Azarbaijan Shahid Madani University, Tabriz, 5375171379, Iran
| | - Bahman Ramavandi
- Department of Environmental Health Engineering, Faculty of Health and Nutrition, Bushehr University of Medical Sciences, Bushehr, Iran
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Vinayagam R, Pai S, Murugesan G, Varadavenkatesan T, Kaviyarasu K, Selvaraj R. Green synthesized hydroxyapatite nanoadsorbent for the adsorptive removal of AB113 dye for environmental applications. ENVIRONMENTAL RESEARCH 2022; 212:113274. [PMID: 35461848 DOI: 10.1016/j.envres.2022.113274] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 04/04/2022] [Accepted: 04/07/2022] [Indexed: 06/14/2023]
Abstract
The present work reports the synthesis of hydroxyapatite (HAp) via the green chemistry approach by using the leaf extract of copper pod tree and its adsorptive potential to remove Acid blue 113 (AB113) dye. FESEM-EDS characterization of the synthesized HAp confirmed rod-shaped HAp with prominent Ca and P elements. The crystallinity of HAp was ascertained by XRD and thermal stability was analyzed by TGA. The colloidal suspension stability was determined as - 17.7 mV by Zeta potential analyzer. The mesoporous structure was affirmed via BET studies with a high magnitude of specific surface area. TEM studies substantiated the rod-shaped HAp as observed in FESEM. The signals specific to HAp were observed in XPS studies. Adsorption of AB113 on the synthesized HAp was examined by varying the process parameters. Batch experiments resulted in an optimum dye removal of 92.72% at a pH of 8, 1 g/L of CP-HAp nps dosage, 20 ppm AB113 concentration, 120 min contact time, 150 rpm agitation speed and at room temperature. The maximum adsorption capacity reached 120.48 mg/g. Multifarious isotherms characterized the adsorption with Freundlich isotherm (R2 > 0.968) dominating Langmuir indicating multilayer adsorption. The experimental data reasonably matched pseudo-second-order kinetics with R2 exceeding 0.99. Thermodynamic investigations underlined the spontaneity and exothermicity of the processes. Results showed the suitability of the HAp nanoadsorbent to remove AB113 from wastestreams.
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Affiliation(s)
- Ramesh Vinayagam
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Shraddha Pai
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Gokulakrishnan Murugesan
- Department of Biotechnology, M.S.Ramaiah Institute of Technology, Bengaluru, 560054, Karnataka, India
| | - Thivaharan Varadavenkatesan
- Department of Biotechnology, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - K Kaviyarasu
- UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology Laboratories, College of Graduate Studies, University of South Africa (UNISA), Muckleneuk Ridge, PO Box 392, Pretoria, South Africa; Nanosciences African Network (NANOAFNET), Materials Research Group (MRG), IThemba LABS-National Research Foundation (NRF), 1 Old Faure Road, 7129, PO Box 722, Somerset West, Western Cape, South Africa.
| | - Raja Selvaraj
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.
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