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Jellali S, Khiari B, Al-Balushi M, Al-Sabahi J, Hamdi H, Bengharez Z, Al-Abri M, Al-Nadabi H, Jeguirim M. Use of waste marble powder for the synthesis of novel calcium-rich biochar: Characterization and application for phosphorus recovery in continuous stirring tank reactors. J Environ Manage 2024; 351:119926. [PMID: 38154226 DOI: 10.1016/j.jenvman.2023.119926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/24/2023] [Accepted: 12/23/2023] [Indexed: 12/30/2023]
Abstract
This study investigates-for the first time-the synthesis of a novel Ca-rich biochar (N-Ca-B) and its potential use for phosphorus (P) recovery from both synthetic solutions (SS) and treated urban wastewater (TUW) in a continuous stirring tank reactor (CSTR) mode. The novel biochar was synthesized by pyrolysis at 900 °C of a mixture composed of three different materials: animal biomass (poultry manure; PM), lignocellulosic waste (date palm fronds; DPFs), and abundant mineral waste (waste marble powder; WMP). Characterization of N-Ca-B showed that it has good textural properties: well-developed porosity, and high specific surface area. Furthermore, high calcium hydroxide (Ca(OH)2) and calcium oxides (CaO) nanoparticle loads were observed on the biochar surface. The dynamic CSTR assays indicated that the P recovery efficiency mainly depended on the biochar mass, P influent concentration, and, especially, the Ca content of the feeding solution. Owing to its richness in Ca cations, TUW exhibited the highest adsorbed P amount (109.2 mg g-1), i.e., about 14% larger than the SS. P recovery occurs through precipitation as hydroxyapatite, surface complexation, and electrostatic interactions with positively charged biochar particles. In real-world scenarios, CSTR systems can be applied as a tertiary treatment step in existing wastewater treatment plants (WWTPs). Decanted P-loaded biochar can be used in agriculture as a slow-release fertilizer instead of commercial products.
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Affiliation(s)
- Salah Jellali
- Centre for Environmental Studies and Research, Sultan Qaboos University, Muscat, Al-Khoud 123, Oman.
| | - Besma Khiari
- Water Research and Technologies Centre, Echo-park of Borj Cedria, University of Carthage, Tunisia
| | - Maram Al-Balushi
- Centre for Environmental Studies and Research, Sultan Qaboos University, Muscat, Al-Khoud 123, Oman
| | - Jamal Al-Sabahi
- College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Al-Khoud 123, Oman
| | - Helmi Hamdi
- Food, Water and Waste Sustainability Program, Center for Sustainable Development, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Zohra Bengharez
- Laboratory of Advanced Materials and Physicochemistry for Environment and Health, Djillali Liabes University, Sidi Bel Abbes, Algeria
| | - Mohammed Al-Abri
- Nanotechnology Research Centre, Sultan Qaboos University, Al-Khoud 123, Oman; Department of Petroleum and Chemical Engineering, College of Engineering, Sultan Qaboos University, Al-Khoud 123, Oman
| | - Hamed Al-Nadabi
- Centre for Environmental Studies and Research, Sultan Qaboos University, Muscat, Al-Khoud 123, Oman
| | - Mejdi Jeguirim
- The Institute of Materials Science of Mulhouse (IS2M), University of Haute Alsace, University of Strasbourg, CNRS, UMR 7361, F-68100 Mulhouse, France
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Al-Yahyaey F, Al-Marzooqi W, Shaat I, Smith MA, Al-Sabahi J, Melak S, Bush RD. Effect of Spirulina platensis Supplementation on Carcass Characteristics, Fatty Acid Profile, and Meat Quality of Omani Goats. Animals (Basel) 2023; 13:2976. [PMID: 37760376 PMCID: PMC10525089 DOI: 10.3390/ani13182976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/11/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
In a 70-day study, 36 Jabbali and Sahrawi bucks, aged 11 months, were utilized to evaluate the effects of different levels of spirulina dietary supplement (SP) on carcass characteristics, fatty acid profile, and meat quality traits in Omani goat breeds. The goats were put into six groups of six bucks, each at random. The diet consisted of a conventional concentrate feed ration (CFR) without spirulina (CON), and the CFR diet supplemented with spirulina at the levels of 2 g/head daily (T1) and 4 g/head daily (T2). In general, Sahrawi bucks showed a highly significant response to SP feeding compared with Jabbali bucks. The treatment groups, especially T1, showed a significant increase in average daily gain and carcass traits (body length, leg length, and the rack weight) compared with the CON group of Sahrawi bucks. The weights of omental and kidney fat were also significantly higher in T1 compared with CON and T2 groups of Sahrawi goats, while they were significantly higher in T2 compared with CON and T1 groups of Jabbali goats. Carcass profile and meat quality, including ultimate ph and meat color lightness (L*) were increased significantly with dietary spirulina in both LD and SM muscles of Sahrawi goats. Most of the Sfa, Mufa, Pufa, Pufa n-6, Pufa n-3, and n-6/n-3 ratios of the LD showed significant differences in diets supplemented with SP compared with CON for Sahrawi bucks, while some of them were significant in Jabbali bucks. The LD muscle of Sahrawi goats fed diets supplemented with SP of the T1 group significantly decreased in the amounts of pentadecanoic and margaric acids compared with the T2 and CON groups. The study concluded that incorporating SP (2 g and 4 g/head daily) into the diet of Omani goats, especially Sahrawi goats, can increase growth performance, as well as improve fatty acid composition and meat quality.
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Affiliation(s)
- Fahad Al-Yahyaey
- Animal Nutrition Research Division, Ministry of Agriculture Wealth, Fisheries and Water Resources, Rumais, P.O. Box 467, Muscat 100, Oman
- School of Veterinary Science, Faculty of Science, University of Sydney, Camden, NSW 2570, Australia; (M.A.S.); (R.D.B.)
| | - Waleed Al-Marzooqi
- Animal and Veterinary Sciences Department, College of Agricultural & Marine Sciences, Sultan Qaboos University, Al-Khod, P.O. Box 34, Muscat 123, Oman;
| | - Ihab Shaat
- Oman Animal and Plant Genetic Resources Centre, Ministry of Higher Education, Research and Innovation, Al Koudh, P.O. Box 92, Muscat 123, Oman;
- Animal Production Research Institute, Agriculture Research Center, Ministry of Agriculture, Dokki, Giza 12618, Egypt;
| | - Melanie A. Smith
- School of Veterinary Science, Faculty of Science, University of Sydney, Camden, NSW 2570, Australia; (M.A.S.); (R.D.B.)
| | - Jamal Al-Sabahi
- Central Instrument Laboratory, College of Agricultural & Marine Sciences, Sultan Qaboos University, Al-Khod, P.O. Box 34, Muscat 123, Oman;
| | - Sherif Melak
- Animal Production Research Institute, Agriculture Research Center, Ministry of Agriculture, Dokki, Giza 12618, Egypt;
| | - Russell D. Bush
- School of Veterinary Science, Faculty of Science, University of Sydney, Camden, NSW 2570, Australia; (M.A.S.); (R.D.B.)
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Soleimani-Gorgani A, Al-Sabahi J, Akbaripoor Tafreshi Nejad S, Heydari M, Al-Abri M, Namaeighasemi A. Visible-Light-Driven Super-active Sn and GO Single- and Sn/Cu Co-doped Nanophotocatalysts for Phenol Degradation: Thin-Film Printability, Thermal Stability, and Cytotoxicity Assay. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2023.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Abed RMM, Al-Fori M, Al-Hinai M, Al-Sabahi J, Al-Battashi H, Prigent S, Headley T. Effect of partially hydrolyzed polyacrylamide (HPAM) on the bacterial communities of wetland rhizosphere soils and their efficiency in HPAM and alkane degradation. Environ Sci Pollut Res Int 2023; 30:9713-9724. [PMID: 36063269 DOI: 10.1007/s11356-022-22636-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 08/17/2022] [Indexed: 06/15/2023]
Abstract
The effect of partially hydrolyzed polyacrylamide (HPAM) on structure and function of rhizosphere soil bacterial communities in constructed wetlands has been largely underinvestigated. In this study, we compare the effect of 250, 500, and 1000 mg/L of HPAM on bacterial community composition of Phragmites australis associated rhizosphere soils in an experimental wetland using MiSeq amplicon sequencing. Rhizosphere soils from the HPAM-free and the 500-mg/L-exposed treatments were used for laboratory experiments to further investigate the effect of HPAM on the soil's degradation and respiration activities. Soils treated with HPAM showed differences in bacterial communities with the dominance of Proteobacteria and the enrichment of potential hydrocarbon and HPAM-degrading bacteria. CO2 generation was higher in the HPAM-free soils than in the HPAM pre-exposed soil, with a noticeable increase in both soils when oil was added. The addition of HPAM at different concentrations had a more pronounced effect on CO2 evolution in the HPAM-pre-exposed soil. Soils were able to degrade between 37 ± 18.0 and 66 ± 6.7% of C10 to C30 alkanes after 28 days, except in the case of HPAM-pre-exposed soil treated with 500 mg/L where degradation reached 92 ± 4.3%. Both soils reduced HPAM concentration by 60 ± 15% of the initial amount in the 500 mg/L treatment, but by only ≤ 21 ± 7% in the 250-mg/L and 1000-mg/L treatments. In conclusion, the rhizosphere soils demonstrated the ability to adapt and retain their ability to degrade hydrocarbon in the presence of HPAM.
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Affiliation(s)
- Raeid M M Abed
- Biology Department, College of Science, Sultan Qaboos University, Al Khoud, P.O. Box: 36, PC 123, Al Seeb, Sultanate of Oman.
| | - Marwan Al-Fori
- Biology Department, College of Science, Sultan Qaboos University, Al Khoud, P.O. Box: 36, PC 123, Al Seeb, Sultanate of Oman
| | - Mahmood Al-Hinai
- Biology Department, College of Science, Sultan Qaboos University, Al Khoud, P.O. Box: 36, PC 123, Al Seeb, Sultanate of Oman
| | - Jamal Al-Sabahi
- Central Instrumentation Laboratory, College of Agricultural & Marine Sciences, Sultan Qaboos University, Al Khoud, P.O. Box: 34, PC 123, Al Seeb, Sultanate of Oman
| | - Huda Al-Battashi
- Biology Department, College of Science, Sultan Qaboos University, Al Khoud, P.O. Box: 36, PC 123, Al Seeb, Sultanate of Oman
| | - Stephane Prigent
- BAUER Nimr LLC, P.C 114, Al Mina, P.O. Box 1186, Muscat, Sultanate of Oman
| | - Tom Headley
- BAUER Nimr LLC, P.C 114, Al Mina, P.O. Box 1186, Muscat, Sultanate of Oman
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Abed RMM, Al-Fori M, Al-Sabahi J, Prigent S, Headley T. Impacts of partially hydrolyzed polyacrylamide (HPAM) on microbial mats from a constructed wetland treating oilfield produced water. Chemosphere 2021; 285:131421. [PMID: 34242985 DOI: 10.1016/j.chemosphere.2021.131421] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 06/01/2021] [Accepted: 06/30/2021] [Indexed: 06/13/2023]
Abstract
Constructed wetlands have been successfully used in the treatment of produced water brought to the surface in large quantities during oil extraction activities. However, with the increasing use of partially hydrolyzed polyacrylamide (HPAM) in enhancing oil recovery, the impacts of HPAM on the biological processes of wetlands is still unknown. Microbial mats in wetlands play a key role in hydrocarbon degradation. Here, we compared the bacterial communities of four wetland microbial mats after flooding with different concentrations of HPAM. Two mats (i.e. the HPAM-free and the 500 ppm HPAM pre-exposed mats) were selected to further investigate the effect of HPAM on respiration and biodegradation activities. The field mats exhibited clear differences in their bacterial community structure, where Cyanobacteria and Alphaproteobacteria became dominant in the presence of HPAM. In the laboratory experiments, the generated CO2 by the HPAM-free and the 500 ppm HPAM pre-exposed mats did not vary significantly when HPAM was added, although CO2 values were slightly higher in the presence of oil. Both mats were still able to degrade between 15 ± 14.4 to 50 ± 13.0% of C10 to C30 alkanes in 28 days, and this degradation was not affected by HPAM addition. The HPAM concentration decreased by 22-34% of the initial amount after 28 days of incubation in the HPAM-free mat, versus only 7-18.4% decrease in the 500 ppm HPAM pre-exposed mat. We conclude that the wetland microbial mats seem to have become well adapted to HPAM and could maintain their respiration and hydrocarbon degradation activities.
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Affiliation(s)
- Raeid M M Abed
- Biology Department, College of Science, Sultan Qaboos University, P. O. Box: 36, PC 123, Al Khoud, Oman.
| | - Marwan Al-Fori
- Biology Department, College of Science, Sultan Qaboos University, P. O. Box: 36, PC 123, Al Khoud, Oman
| | - Jamal Al-Sabahi
- Central Instrumentation Laboratory, College of Agricultural & Marine Sciences, Sultan Qaboos University, P. O. Box: 34, PC 123, Al Khoud, Oman
| | | | - Tom Headley
- BAUER Nimr LLC, P.O.Box 1186, P.C 114, Al Mina, Muscat, Oman
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Jamshidi-adegani F, Vakilian S, Al-kindi J, Rehman NU, Alkalbani L, Al-Broumi M, Al-Wahaibi N, Shalaby A, Al-Sabahi J, Al-Harrasi A, Al-Hashmi S. Prevention of post-surgical adhesion bands by local administration of frankincense n-hexane extract. J Tradit Complement Med 2021; 12:367-374. [PMID: 35747348 PMCID: PMC9209871 DOI: 10.1016/j.jtcme.2021.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 10/10/2021] [Accepted: 10/13/2021] [Indexed: 12/04/2022] Open
Abstract
Background and purpose: The formation of postoperative intra-abdominal adhesion band formation may lead to severe complications. This study aimed to evaluate the preventive effect of local administration of frankincense n-hexane extract (FHE) on the formation of postsurgical adhesion bands. Materials and methods FHE was extracted from the resin of a Boswellia sacra tree and its components were identified by gas chromatography-mass spectrometry (GC-MS). In an animal model, the expression levels of TNF-α and TGF-β1 cytokines after application of FHE were assessed to check the inflammatory and fibrotic cues, respectively. Results Following FHE compound analysis, in vivo experiments demonstrated that intraoperative local administration of FHE resulted in the prevention of adhesion band formation. The adhesion grades in the FHE-treated group were significantly lower than those in the negative control (NC) and the positive control (Interceed). The infiltration of inflammatory cells observed by histopathology revealed a significant anti-inflammatory potential of FHE. Furthermore, the gene expression results proved that significant suppression of TNF-α and TGF-β1 was responsible for its antiadhesion properties. Conclusions The study reported the potential of FHE as an ointment for the prevention of adhesion bands. Recognition of compounds with anti-inflammatory, antifibrotic activities in FHE using gas chromatography-mass spectrometry. The avoidance of adhesion bands formation, in vivo following intraoperative local administration of FHE. A notable anti-inflammatory potential of FHE detected by histopathology results. Approving the regulation of TNF-α and TGF-β1 involved in the intra-abdomen adhesion preventive properties of FHE.
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Alqaisi O, Al-Jazmi F, Al-Abri M, Al Kalaldeh M, Al-Sabahi J, Al-Marzooqi W. Effect of diet quality and shearing on feed and water intake, in vitro ruminal methane production, and blood parameters of Omani sheep. Trop Anim Health Prod 2019; 52:1115-1124. [PMID: 31782122 DOI: 10.1007/s11250-019-02108-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 10/03/2019] [Indexed: 11/30/2022]
Abstract
The aim of this study was to evaluate the effect of diet and animal shearing on the feed and nutrient intakes, water intake, in vitro ruminal methane production, and blood parameters of Omani sheep. A pens trial was carried out for 16 days each in March and June of 2017 using 20 Omani non-castrated yearling rams selected from the sheep herd in the research station and randomly assigned to four groups with 5 animals per group. Group 1: sheared animals fed a high concentrate (HC) diet, group 2: fleeced animals fed a HC diet, group 3: sheared animals fed a low concentrate (LC) diet, group 4: fleeced animals fed a LC diet. Furthermore, a metabolic crates trial was carried out in July of 2017 on three animals from each group over a 10-day period. The effect of diet and shearing on the tested parameters was evaluated using the mixed linear model, where animals were fitted as a random effect to account for the individual animal deviation from the overall mean. Results showed that rams fed on the high concentrate diet had a significantly increased organic matter intake of the total diet (62 g/kg 0.75 Live Weight (LW) in HC group to 54 g/kg 0.75 LW in LC group), an increased water intake (6.3 L/day vs 4.8 L/day in LC group), and a reduced in vitro methane production (i.e. the invitro ruminal CH4 was measured and converted to daily CH4 using the daily feed intake data and was 20.4 g CH4 per head/day in HC group vs 27.3 g CH4 per head/day in LC group), compared with rams fed on the low concentrate diet. Furthermore, shearing had a significant effect (P < 0.01) on increased feed and nutrients intake. The apparent and organic matter digestibility was significantly different (P < 0.01) between the experimental groups and was greater for those rams fed on the HC diet. Partial substitution of low-quality Rhodes grass hay by high-quality concentrate significantly improved the total diet organic matter digestibility (P < 0.01) and nutrients digestibility, whereas no significant effects on biochemical blood parameters or animal health were observed. These results show the importance of utilizing effective feeding and shearing plans to improve the productivity and reduce the methane emission of Omani sheep.
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Affiliation(s)
- Othman Alqaisi
- Animal and Veterinary Sciences Department, College of Agricultural & Marine Sciences, Sultan Qaboos University, P.O. Box 34, Al-Khod, 123, Muscat, Oman.
| | - Fatma Al-Jazmi
- Animal and Veterinary Sciences Department, College of Agricultural & Marine Sciences, Sultan Qaboos University, P.O. Box 34, Al-Khod, 123, Muscat, Oman
| | - Mohammad Al-Abri
- Animal and Veterinary Sciences Department, College of Agricultural & Marine Sciences, Sultan Qaboos University, P.O. Box 34, Al-Khod, 123, Muscat, Oman
| | - Mohammad Al Kalaldeh
- School of Environmental and Rural Science, University of New England, Armidale, NSW, 2351, Australia
| | - Jamal Al-Sabahi
- Central Instrument Laboratory, College of Agricultural & Marine Sciences, Sultan Qaboos University, P.O. Box 34, Al-Khod, 123, Muscat, Oman
| | - Waleed Al-Marzooqi
- Animal and Veterinary Sciences Department, College of Agricultural & Marine Sciences, Sultan Qaboos University, P.O. Box 34, Al-Khod, 123, Muscat, Oman
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Al-Nasseri RH, Al-Ruqashi H, Al-Sabahi J, Al-Harrasi A, Kenekanian A, Banerjee Y, Morris K, Hassan N. Lipids derived from Camel milk regulate NLRP3 inflammasome-dependent inflammatory responses in human macrophages. FFHD 2019. [DOI: 10.31989/ffhd.v9i4.567] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Background: Camel milk is widely used for its reported anti-diabetic and health promoting effects. Lipids derived from the milk have also been shown to exhibit potent anti-inflammatory effects. The mechanism through which these lipids and constituent fatty acids exert these effects remains elusive. The aim of this study was to investigate the effect of camel milk on glycated protein-mediated macrophage inflammation.Methods: To determine the effect of Total Lipids (TL) and Total Fatty Acids (TFA) derived from camel milk on an in vitro model of diabetic inflammation, differentiated THP-1 (dTHP-1) cells stimulated with glycated serum albumin (gBSA) was employed. Cells were pre-treated with TL or TFA before challenging cells with gBSA.Results: Gas Chromatography-Mass Spectrometry (GC-MS) analysis found that TL was 96% triacylglycerol (TAG) while the TFA comprised 65% saturated and 35% unsaturated fatty acids. Both TL and TFA significantly (p<0.05) decreased gBSA-induced secretion of pro-inflammatory cytokines (Tumour necrosis factor-(TNF)-α, Interleukin-(IL)-1β/18). TL also demonstrated the ability to regulate the expression of p50/p65 sub-units of Nuclear Factor-kappa B (NF-κB), while concomitantly increasing the expression of regulatory cytokines IL-10, IL-1 Receptor Antagonist (IL-1Ra) and Cluster of Differentiation 163 (CD163)-shifting cells towards an M2 macrophage phenotype. Additionally, we found that TL significantly regulated the expression of Nucleotide-binding oligomerization domain-like receptor family pyrin domain containing-3 (NLRP3) inflammasome subunit and its regulator; Ten-Eleven Translocation-2 (TET-2).Conclusion: This paper demonstrates the ability of camel milk lipids to regulate gBSA-induced macrophage inflammation in vitro, by modulating the expression of key inflammatory regulators such NF-kB and NLRP3 inflammasome subunit. Keywords: Camel milk lipids, Macrophages, NF-kB, NLRP3-inflammasome, TET-2
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Al-Sabahi J, Bora T, Al-Abri M, Dutta J. Efficient visible light photocatalysis of benzene, toluene, ethylbenzene and xylene (BTEX) in aqueous solutions using supported zinc oxide nanorods. PLoS One 2017; 12:e0189276. [PMID: 29261711 PMCID: PMC5738043 DOI: 10.1371/journal.pone.0189276] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 11/22/2017] [Indexed: 12/01/2022] Open
Abstract
Benzene, toluene, ethylbenzene and xylenes (BTEX) are some of the common environmental pollutants originating mainly from oil and gas industries, which are toxic to human as well as other living organisms in the ecosystem. Here we investigate photocatalytic degradation of BTEX under visible light irradiation using supported zinc oxide (ZnO) nanorods grown on glass substrates using a microwave assisted hydrothermal method. ZnO nanorods were characterized by electron microscopy, X-ray diffraction (XRD), specific surface area, UV/visible absorption and photoluminescence spectroscopy. Visible light photocatalytic degradation products of BTEX are studied for individual components using gas chromatograph/mass spectrometer (GC/MS). ZnO nanorods with significant amount of electronic defect states, due to the fast crystallization of the nanorods under microwave irradiation, exhibited efficient degradation of BTEX under visible light, degrading more than 80% of the individual BTEX components in 180 minutes. Effect of initial concentration of BTEX as individual components is also probed and the photocatalytic activity of the ZnO nanorods in different conditions is explored. Formation of intermediate byproducts such as phenol, benzyl alcohol, benzaldehyde and benzoic acid were confirmed by our HPLC analysis which could be due to the photocatalytic degradation of BTEX. Carbon dioxide was evaluated and showed an increasing pattern over time indicating the mineralization process confirming the conversion of toxic organic compounds into benign products.
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Affiliation(s)
- Jamal Al-Sabahi
- Department of Petroleum and Chemical Engineering, College of Engineering, Sultan Qaboos University, Al-Khoudh, Oman
- Chair in Nanotechnology for Water Desalination, Water Research Center, Sultan Qaboos University, Al-Khoudh, Oman
| | - Tanujjal Bora
- Center of Excellence in Nanotechnology, Asian Institute of Technology, Klong Luang, Pathumthani, Thailand
| | - Mohammed Al-Abri
- Department of Petroleum and Chemical Engineering, College of Engineering, Sultan Qaboos University, Al-Khoudh, Oman
- Chair in Nanotechnology for Water Desalination, Water Research Center, Sultan Qaboos University, Al-Khoudh, Oman
- * E-mail: (MA); (JD)
| | - Joydeep Dutta
- Functional Materials, Department of Applied Physics, School of Engineering Sciences, KTH Royal Institute of Technology, Kista, Stockholm, Sweden
- * E-mail: (MA); (JD)
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Hakkim FL, Al-Buloshi M, Al-Sabahi J. Frankincense derived heavy terpene cocktail boosting breast cancer cell (MDA-MB-231) death in vitro. Asian Pac J Trop Biomed 2015. [DOI: 10.1016/j.apjtb.2015.06.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Salahudeen N, Ahmed AS, Al-Muhtaseb AH, Dauda M, Waziri SM, Jibril BY, Al-Sabahi J. Synthesis, characterization and adsorption study of nano-sized activated alumina synthesized from kaolin using novel method. POWDER TECHNOL 2015. [DOI: 10.1016/j.powtec.2015.04.024] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Waly M, Al-Rizeiqi M, Al-Sabahi J, Soussi B. In Vitro Evidence of Hepato‐ and Neuro‐Protective Effects of Fish Press Juices against Hydrogen Peroxide‐Induced Oxidative Stress. FASEB J 2012. [DOI: 10.1096/fasebj.26.1_supplement.823.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mostafa Waly
- Food Science and NutritionSultan Qaboos UniversityMuscatOman
| | | | - Jamal Al-Sabahi
- Food Science and NutritionSultan Qaboos UniversityMuscatOman
| | - Bassam Soussi
- Food Science and NutritionSultan Qaboos UniversityMuscatOman
- Institute for Clinical SciencesGoteborg UniversitySweden
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