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Sun M, Abazari R, Chen J, Hussain CM, Zhou Y, Kirillov AM. Encapsulation of H 4SiW 12O 40 into an Amide-Functionalized MOF: A Highly Efficient Nanocomposite Catalyst for Oxidative Desulfurization of Diesel Fuel. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37931039 DOI: 10.1021/acsami.3c12374] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
Production of hydrocarbon fuels containing sulfur in ultralow levels is in high demand and requires the development of novel catalytic systems for oxidative desulfurization (ODS). Herein, a new nanocomposite SiW12@ZSTU-10 catalyst containing H4SiW12O40 (SiW12) encapsulated into a zinc(II) 3D metal-organic framework (MOF) (ZSTU-10) was assembled and characterized. The intricate structure and porosity of ZSTU-10 permit efficient encapsulation of the catalytically active SiW12 cages. The impact of different experimental parameters on the ODS of model oil containing dibenzothiophene as a typical S-based contaminant was evaluated. The SiW12@ZSTU-10 catalyst exhibits remarkable activity with up to 99.8% sulfur removal in 30 min. Kinetic features, trapping tests, and mechanistic studies were also performed. Furthermore, the catalyst offered an outstanding thermal and chemical stability, without apparent leaching and decline in the activity after six cycles. Such an improved catalytic efficiency of SiW12@ZSTU-10 can be assigned to (i) size-matched occupation of the ZSTU-10 pores by SiW12-active species, (ii) prevention of polyoxometalate (POM) leaching from the MOF matrix, (iii) facilitation of the access of S-based substrates to the active sites of SiW12, and (iv) excellent stability and recyclability of the obtained nanocomposite. The preset work widens a family of promising nanocomposite catalysts for improving the desulfurization performance of hybrid POM-MOF catalytic systems.
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Affiliation(s)
- Mingyuzhi Sun
- Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, National Engineering Research Center for Marine Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, Zhejiang Province 316004, China
| | - Reza Abazari
- Department of Chemistry, Faculty of Science, University of Maragheh, P.O. Box 55181-83111, Maragheh 83111-55181, Iran
| | - Jing Chen
- Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, National Engineering Research Center for Marine Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, Zhejiang Province 316004, China
| | - Chaudhery Mustansar Hussain
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Yingtang Zhou
- Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, National Engineering Research Center for Marine Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, Zhejiang Province 316004, China
| | - Alexander M Kirillov
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, Lisbon 1049-001, Portugal
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Separation of Methanol and Ethanol from Azeotropic MTBE Mixtures Using Choline Chloride-Based Deep Eutectic Solvents. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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3
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Chen M, Dai C, Yu G, Liu N, Xu R, Wang N, Chen B. Highly efficient absorption of methyl tert-butyl ether with ionic liquids. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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4
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Development of a novel cathodic deposition method for thin-film metal azolate frameworks toward Cd2+ adsorption. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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5
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Chatterjee A, Jana AK, Basu JK. A binary MOF of iron and copper for treating ciprofloxacin-contaminated waste water by an integrated technique of adsorption and photocatalytic degradation. NEW J CHEM 2021. [DOI: 10.1039/d1nj02880d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel MIL 53(Fe–Cu) was synthesized by a solvothermal process. This binary metal organic framework removed ciprofloxacin from waste water.
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Affiliation(s)
- Aditi Chatterjee
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur-732302, India
| | - Amiya Kumar Jana
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur-732302, India
| | - Jayanta Kumar Basu
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur-732302, India
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d’Errico G, Aloj V, Ventorino V, Bottiglieri A, Comite E, Ritieni A, Marra R, Bolletti Censi S, Flematti GR, Pepe O, Vinale F. Methyl t-butyl ether-degrading bacteria for bioremediation and biocontrol purposes. PLoS One 2020; 15:e0228936. [PMID: 32084150 PMCID: PMC7034917 DOI: 10.1371/journal.pone.0228936] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 01/27/2020] [Indexed: 11/27/2022] Open
Abstract
A total of fifteen potential methyl t-butyl ether (MtBE)-degrading bacterial strains were isolated from contaminated soil. They have been identified as belonging to the genera Bacillus, Pseudomonas, Kocuria, Janibacter, Starkeya, Bosea, Mycolicibacterium, and Rhodovarius. Bacillus aryabhattai R1B, S. novella R8b, and M. mucogenicum R8i were able to grow using MtBE as carbon source, exhibiting different growth behavior and contaminant degradation ability. Their biocontrol ability was tested against various fungal pathogens. Both S. novella R8b and B. aryabhattai were effective in reducing the development of necrotic areas on leaves within 48 hours from Botritys cinerea and Alternaria alternata inoculation. Whereas, M. mucogenicum effectively controlled B. cinerea after 72 hours. Similar results were achieved using Pythium ultimum, in which the application of isolated bacteria increased seed germination. Only M. mucogenicum elicited tomato plants resistance against B. cinerea. This is the first report describing the occurrence of bioremediation and biocontrol activities in M. mucogenicum, B. aryabhattai and S. novella species. The production of maculosin and its antibiotic activity against Rhizoctonia solani has been reported for first time from S. novella. Our results highlight the importance of multidisciplinary approaches to achieve a consistent selection of bacterial strains useful for plant protection and bioremediation purposes.
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Affiliation(s)
- Giada d’Errico
- University of Naples Federico II, Department of Agricultural Sciences, Portici (NA), Italy
| | - Veronica Aloj
- University of Naples Federico II, Department of Agricultural Sciences, Portici (NA), Italy
| | - Valeria Ventorino
- University of Naples Federico II, Department of Agricultural Sciences, Portici (NA), Italy
| | - Assunta Bottiglieri
- University of Naples Federico II, Department of Agricultural Sciences, Portici (NA), Italy
| | - Ernesto Comite
- University of Naples Federico II, Department of Agricultural Sciences, Portici (NA), Italy
| | - Alberto Ritieni
- University of Naples Federico II, Department of Pharmacy, Naples, Italy
| | - Roberta Marra
- University of Naples Federico II, Department of Agricultural Sciences, Portici (NA), Italy
| | | | - Gavin R. Flematti
- School of Molecular Sciences, The University of Western Australia, Crawley, WA, Australia
| | - Olimpia Pepe
- University of Naples Federico II, Department of Agricultural Sciences, Portici (NA), Italy
| | - Francesco Vinale
- University of Naples Federico II, Department of Veterinary Medicine and Animal Production, Naples, Italy
- National Research Council, Institute for Sustainable Plant Protection, Portici (NA), Italy
- * E-mail:
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Abazari R, Morsali A, Dubal DP. An advanced composite with ultrafast photocatalytic performance for the degradation of antibiotics by natural sunlight without oxidizing the source over TMU-5@Ni–Ti LDH: mechanistic insight and toxicity assessment. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00050g] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Pharmaceuticals are considered as emerging organic contaminants that have become a serious environmental problem, which endanger human health and environmental bio-diversity.
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Affiliation(s)
- Reza Abazari
- Department of Chemistry
- Tarbiat Modares University
- Tehran
- Iran
| | - Ali Morsali
- Department of Chemistry
- Tarbiat Modares University
- Tehran
- Iran
| | - Deepak P. Dubal
- Centre for Materials Science
- Queensland University of Technology (QUT)
- Brisbane
- Australia
- School of Chemistry and Physics
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Amanollahi H, Moussavi G, Giannakis S. VUV/Fe(II)/H 2O 2 as a novel integrated process for advanced oxidation of methyl tert-butyl ether (MTBE) in water at neutral pH: Process intensification and mechanistic aspects. WATER RESEARCH 2019; 166:115061. [PMID: 31522015 DOI: 10.1016/j.watres.2019.115061] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/13/2019] [Accepted: 09/05/2019] [Indexed: 06/10/2023]
Abstract
Vacuum UV (VUV) technologies have recently attracted high interest due to their high efficacy in generating reactive oxygen species (ROS). To date, no systematic study of the modes of action of the integrated VUV/Fe(II)/H2O2 process against contaminants elimination exists; the present study reports the oxidation of MTBE in a new light-assisted Fenton-process, by employing either narrowband UVC (254 nm) or VUV (185 and 254 nm) irradiation, in a comparative evaluation. The processes under investigation were the UVC- or VUV/Fe(II)/H2O2 sensitized ones and their constituents, i.e. Fe(II)/H2O2, VUV, VUV/Fe(II), VUV/H2O2, VUV/Fe(II)/H2O2, as well as the UVC, UVC/H2O2 and UVC/Fe(II)/H2O2. We scrutinize the operational parameters of the VUV-assisted process, its enhancements and synergies, comparison with the UVC-based ones, as well as their inflicted pathways towards MTBE degradation. Complete degradation and 87.8% mineralization of 50 mg/L MTBE was achieved in the VUV/Fe(II)/H2O2 process (0.9 mM Fe(II) and 3 mM H2O2), at near-neutral pH (reaction times: ∼30 and 60 min, respectively). Irradiation with VUV light was found to act synergistically and in high kinetic rates enhancement compared to the UVC source, sensitizing the Fenton process for effective oxidation of MTBE in the aqueous solution. A scavenger study and degradation by-products investigation has been performed, leading to a mechanistic pathway proposition, elucidating MTBE degradation. The VUV/Fe(II)/H2O2 process demonstrated potential applicability in the field since it could efficiently treat (100% degradation and 86.4% mineralization) groundwater spiked with MTBE, operated either under batch or continuous-flow mode. The findings clearly indicates the VUV-assisted Fenton as an emerging and viable technology for field application to treat the MTBE-contaminated effluents or waters.
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Affiliation(s)
- Hawzhin Amanollahi
- Department of Environmental Health Engineering, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Gholamreza Moussavi
- Department of Environmental Health Engineering, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Stefanos Giannakis
- Universidad Politécnica de Madrid, E.T.S. Ingenieros de Caminos, Canales y Puertos, Departamento de Hidráulica, Energía y Medio Ambiente, Unidad docente Ingeniería Sanitaria, c/ Profesor Aranguren, s/n, ES-28040, Madrid, Spain
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Fernandes A, Gągol M, Makoś P, Khan JA, Boczkaj G. Integrated photocatalytic advanced oxidation system (TiO2/UV/O3/H2O2) for degradation of volatile organic compounds. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.05.012] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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10
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Hassandoost R, Pouran SR, Khataee A, Orooji Y, Joo SW. Hierarchically structured ternary heterojunctions based on Ce 3+/ Ce 4+ modified Fe 3O 4 nanoparticles anchored onto graphene oxide sheets as magnetic visible-light-active photocatalysts for decontamination of oxytetracycline. JOURNAL OF HAZARDOUS MATERIALS 2019; 376:200-211. [PMID: 31128399 DOI: 10.1016/j.jhazmat.2019.05.035] [Citation(s) in RCA: 155] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 03/28/2019] [Accepted: 05/15/2019] [Indexed: 05/24/2023]
Abstract
The main prerequisite of an active visible-light-driven photocatalyst is to effectively utilize the visible light to induce electron-hole (e-/h+) pairs of expanded lifetime. To this end, for the first time, the ternary heterojunctions of CeO2/Fe3O4 /Graphene oxide and Ce3+/ Fe3O4 /Graphene oxide (CeO2/Fe3O4/GO and Fe2.8Ce0.2O4/GO) were prepared via facile ultrasonic-assisted procedures and employed for destruction of oxytetracycline (OTC) under visible light irradiation. The changes in the relative crystal structure, morphology, atomic and surface functional group composition, magnetic, and optic properties of magnetite were uncovered by various techniques. The substantial degradation and mineralization of OTC via visible light/Fe2.8Ce0.2O4/GO system were thoroughly discussed in terms of narrowed band gap energy, the principal function of Ce3+/Ce4+ and Fe2+/Fe3+ redox pairs and GO platelets, enhanced charge separation and transfer, and enlarged active surface area. Furthermore, the performance of visible light/Fe2.8Ce0.2O4/GO system was evaluated for treating real wastewater and its efficiency was investigated using a number of enhancers and scavengers. Finally, the generated byproducts in the course of photodegradation were determined and the oxidation pathway, photocatalytic kinetics, and plausible mechanism were proposed. The results confirmed that the introduced Ce ions and graphene oxide sheets boost the photo-catalytic efficiency of magnetite for photodegradation of OTC.
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Affiliation(s)
- Ramin Hassandoost
- College of Materials Science and Engineering, Nanjing Forestry University, No. 159, Longpan Road, Nanjing, 210037 Jiangsu, People's Republic of China; Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471 Tabriz, Iran
| | - Shima Rahim Pouran
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471 Tabriz, Iran; Centre of Advanced Manufacturing and Materials Processing, Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471 Tabriz, Iran; Department of Materials Science and Nanotechnology Engineering, Faculty of Engineering, Near East University, 99138 Nicosia, North Cyprus, Mersin 10, Turkey.
| | - Yasin Orooji
- College of Materials Science and Engineering, Nanjing Forestry University, No. 159, Longpan Road, Nanjing, 210037 Jiangsu, People's Republic of China.
| | - Sang Woo Joo
- School of Mechanical Engineering, Yeungnam University, Gyeongsan 712-749, South Korea.
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Yadav DK, Gupta R, Ganesan V, Sonkar PK, Yadav M. Gold Nanoparticles Incorporated in a Zinc‐Based Metal‐Organic Framework as Multifunctional Catalyst for the Oxygen Reduction and Hydrogen Evolution Reactions. ChemElectroChem 2018. [DOI: 10.1002/celc.201800519] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Dharmendra K. Yadav
- Department of Chemistry, Institute of ScienceBanaras Hindu University Varanasi- 221 005, UP India
| | - Rupali Gupta
- Department of Chemistry, Institute of ScienceBanaras Hindu University Varanasi- 221 005, UP India
| | - Vellaichamy Ganesan
- Department of Chemistry, Institute of ScienceBanaras Hindu University Varanasi- 221 005, UP India
| | - Piyush K. Sonkar
- Department of Chemistry, Institute of ScienceBanaras Hindu University Varanasi- 221 005, UP India
| | - Mamta Yadav
- Department of Chemistry, Institute of ScienceBanaras Hindu University Varanasi- 221 005, UP India
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Nanocrystalline TiO₂ Composite Films for the Photodegradation of Formaldehyde and Oxytetracycline under Visible Light Irradiation. Molecules 2017; 22:molecules22060950. [PMID: 28613235 PMCID: PMC6152682 DOI: 10.3390/molecules22060950] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 06/04/2017] [Accepted: 06/06/2017] [Indexed: 11/17/2022] Open
Abstract
In order to effectively photodegradate organic pollutants, ZnO composite and Co-B codoped TiO₂ films were successfully deposited on glass substrates via a modified sol-gel method and a controllable dip-coating technique. Combining with UV-Vis diffuse reflectance spectroscopy (DRS) and photoluminescence spectra (PL) analyses, the multi-modification could not only extend the optical response of TiO₂ to visible light region but also decrease the recombination rate of electron-hole pairs. XRD results revealed that the multi-modified TiO₂ film had an anatase-brookite biphase heterostructure. FE-SEM results indicated that the multi-modified TiO₂ film without cracks was composed of smaller round-like nanoparticles compared to pure TiO₂. BET surface area results showed that the specific surface area of pure TiO₂ and the multi-modified TiO₂ sample was 47.8 and 115.8 m²/g, respectively. By degradation of formaldehyde and oxytetracycline, experimental results showed that the multi-modified TiO₂ film had excellent photodegradation performance under visible light irradiation.
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SrCo 1-xTi xO 3-δ perovskites as excellent catalysts for fast degradation of water contaminants in neutral and alkaline solutions. Sci Rep 2017; 7:44215. [PMID: 28281656 PMCID: PMC5345050 DOI: 10.1038/srep44215] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 02/03/2017] [Indexed: 11/08/2022] Open
Abstract
Perovskite-like oxides SrCo1-xTixO3-δ (SCTx, x = 0.1, 0.2, 0.4, 0.6) were used as heterogeneous catalysts to activate peroxymonosulfate (PMS) for phenol degradation under a wide pH range, exhibiting more rapid phenol oxidation than Co3O4 and TiO2. The SCT0.4/PMS system produced a high activity at increased initial pH, achieving optimized performance at pH ≥ 7 in terms of total organic carbon removal, the minimum Co leaching and good catalytic stability. Kinetic studies showed that the phenol oxidation kinetics on SCT0.4/PMS system followed the pseudo-zero order kinetics and the rate on SCT0.4/PMS system decreased with increasing initial phenol concentration, decreased PMS amount, catalyst loading and solution temperature. Quenching tests using ethanol and tert-butyl alcohol demonstrated sulfate and hydroxyl radicals for phenol oxidation. This investigation suggested promising heterogeneous catalysts for organic oxidation with PMS, showing a breakthrough in the barriers of metal leaching, acidic pH, and low efficiency of heterogeneous catalysis.
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Vakili M, Rafatullah M, Salamatinia B, Ibrahim MH, Ismail N, Abdullah AZ. Adsorption Studies of Methyl Tert-butyl Ether from Environment. SEPARATION AND PURIFICATION REVIEWS 2016. [DOI: 10.1080/15422119.2016.1270966] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Affiliation(s)
- Mohammadtaghi Vakili
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, POPs Research Center, Tsinghua University, Beijing, China
| | - Mohd Rafatullah
- School of Industrial Technology, Universiti Sains Malaysia, Penang, Malaysia
| | - Babak Salamatinia
- School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor, Malaysia
| | | | - Norli Ismail
- School of Industrial Technology, Universiti Sains Malaysia, Penang, Malaysia
| | - Ahmad Zuhairi Abdullah
- School of Chemical Engineering, Universiti Sains Malaysia, Nibong Tebal, Penang, Malaysia
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Biodegradation of Methyl Tertiary Butyl Ether (MTBE) by a Microbial Consortium in a Continuous Up-Flow Packed-Bed Biofilm Reactor: Kinetic Study, Metabolite Identification and Toxicity Bioassays. PLoS One 2016; 11:e0167494. [PMID: 27907122 PMCID: PMC5132332 DOI: 10.1371/journal.pone.0167494] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 11/15/2016] [Indexed: 02/01/2023] Open
Abstract
This study investigated the aerobic biodegradation of methyl tertiary-butyl ether (MTBE) by a microbial consortium in a continuous up-flow packed-bed biofilm reactor using tezontle stone particles as a supporting material for the biofilm. Although MTBE is toxic for microbial communities, the microbial consortium used here was able to resist MTBE loading rates up to 128.3 mg L-1 h-1, with removal efficiencies of MTBE and chemical oxygen demand (COD) higher than 90%. A linear relationship was observed between the MTBE loading rate and the MTBE removal rate, as well as between the COD loading rate and the COD removal rate, within the interval of MTBE loading rates from 11.98 to 183.71 mg L-1 h-1. The metabolic intermediate tertiary butyl alcohol (TBA) was not detected in the effluent during all reactor runs, and the intermediate 2-hydroxy butyric acid (2-HIBA) was only detected at MTBE loading rates higher than 128.3 mg L-1 h-1. The results of toxicity bioassays with organisms from two different trophic levels revealed that the toxicity of the influent was significantly reduced after treatment in the packed-bed reactor. The packed-bed reactor system used in this study was highly effective for the continuous biodegradation of MTBE and is therefore a promising alternative for detoxifying MTBE-laden wastewater and groundwater.
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Chouchene B, Ben Chaabane T, Balan L, Girot E, Mozet K, Medjahdi G, Schneider R. High performance Ce-doped ZnO nanorods for sunlight-driven photocatalysis. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2016; 7:1338-1349. [PMID: 27826508 PMCID: PMC5082445 DOI: 10.3762/bjnano.7.125] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 09/03/2016] [Indexed: 05/24/2023]
Abstract
Ce-doped ZnO (ZnO:Ce) nanorods have been prepared through a solvothermal method and the effects of Ce-doping on the structural, optical and electronic properties of ZnO rods were studied. ZnO:Ce rods were characterized by XRD, SEM, TEM, XPS, BET, DRS and Raman spectroscopy. 5% Ce-doped ZnO rods with an average length of 130 nm and a diameter of 23 nm exhibit the highest photocatalytic activity for the degradation of the Orange II dye under solar light irradiation. The high photocatalytic activity is ascribed to the substantially enhanced light absorption in the visible region, to the high surface area of ZnO:Ce rods and to the effective electron-hole pair separation originating from Ce doping. The influence of various experimental parameters like the pH, the presence of salts and of organic compounds was investigated and no marked detrimental effect on the photocatalytic activity was observed. Finally, recyclability experiments demonstrate that ZnO:Ce rods are a stable solar-light photocatalyst.
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Affiliation(s)
- Bilel Chouchene
- Unité de Recherche Synthèse et Structure de Nanomatériaux UR 11 ES 30. Université de Carthage, Faculté des Sciences de Bizerte, 7021 Jarzouna, Bizerte, Tunisia
| | - Tahar Ben Chaabane
- Unité de Recherche Synthèse et Structure de Nanomatériaux UR 11 ES 30. Université de Carthage, Faculté des Sciences de Bizerte, 7021 Jarzouna, Bizerte, Tunisia
| | - Lavinia Balan
- Institut de Science des Matériaux de Mulhouse (IS2M), CNRS, UMR 7361, 15 rue Jean Starcky, 68093 Mulhouse, France
| | - Emilien Girot
- Université de Lorraine, Laboratoire Réactions et Génie des Procédés (LRGP), UMR 7274, CNRS, 1 rue Grandville, BP 20451, 54001 Nancy Cedex, France
| | - Kevin Mozet
- Université de Lorraine, Laboratoire Réactions et Génie des Procédés (LRGP), UMR 7274, CNRS, 1 rue Grandville, BP 20451, 54001 Nancy Cedex, France
| | - Ghouti Medjahdi
- Institut Jean Lamour (IJL), Université de Lorraine, CNRS, UMR 7198, CNRS, BP 70239, 54506 Vandoeuvre-lès-Nancy Cedex, France
| | - Raphaël Schneider
- Université de Lorraine, Laboratoire Réactions et Génie des Procédés (LRGP), UMR 7274, CNRS, 1 rue Grandville, BP 20451, 54001 Nancy Cedex, France
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Conducting nanocomposites of polyaniline/nylon 6,6/zinc oxide nanoparticles: preparation, characterization and electrical conductivity studies. IRANIAN POLYMER JOURNAL 2016. [DOI: 10.1007/s13726-016-0428-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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18
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Dong Y, Shen Y, Zhao Y, Wang S, Ma X. Synergy between Palladium and Potassium Species for Efficient Activation of Carbon Monoxide in the Synthesis of Dimethyl Carbonate. ChemCatChem 2015. [DOI: 10.1002/cctc.201500317] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Lin CJ, Liao SJ, Kao LC, Liou SYH. Photoelectrocatalytic activity of a hydrothermally grown branched Zno nanorod-array electrode for paracetamol degradation. JOURNAL OF HAZARDOUS MATERIALS 2015; 291:9-17. [PMID: 25748997 DOI: 10.1016/j.jhazmat.2015.02.035] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 01/30/2015] [Accepted: 02/12/2015] [Indexed: 06/04/2023]
Abstract
Hierarchical branched ZnO nanorod (B-ZnR) arrays as an electrode for efficient photoelectrocatalytic degradation of paracetamol were grown on fluorine-doped tin oxide substrates using a solution route. The morphologic and structural studies show the ZnO trunks are single-crystalline hexagonal wurtzite ZnO with a [0001] growth direction and are densely covered by c-axis-oriented ZnO branches. The obvious enhancement in photocurrent response of the B-ZnR electrode was obtained than that in the ZnO nanoparticle (ZnO NP) electrode. For the photoelectrocatalytic degradation of paracetamol in 20 h, the conversion fraction of the drug increased from 32% over ZnO NP electrode to 62% over B-ZnR arrays with about 3-fold increase in initial reaction rate. The light intensity-dependent photoelectrocatalytic experiment indicated that the superior performance over the B-ZnR electrode was mainly ascribed to the increased specific surface area without significantly sacrificing the charge transport and pollutant diffusion efficiencies. Two aromatic intermediate compounds were observed and eventually converted into harmless carboxylic acids and ammonia. Hierarchical tree-like ZnO arrays can be considered effective alternatives to improve photoelectro degradation rates without the need for expensive additives.
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Affiliation(s)
- Chin Jung Lin
- Department of Environmental Engineering, National Ilan University, 1, Sec. 1, Shen-Lung Road, I-Lan 260, Taiwan
| | - Shu-Jun Liao
- Department of Environmental Engineering, National Ilan University, 1, Sec. 1, Shen-Lung Road, I-Lan 260, Taiwan
| | - Li-Cheng Kao
- Department of Geosciences, National Taiwan University, P.O. Box 13-318, Taipei 106, Taiwan
| | - Sofia Ya Hsuan Liou
- Department of Geosciences, National Taiwan University, P.O. Box 13-318, Taipei 106, Taiwan.
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Rafqah S, Seddigi ZS, Ahmed SA, Danish E, Sarakha M. Use of quadrupole time of flight mass spectrometry for the characterization of transformation products of the antibiotic sulfamethazine upon photocatalysis with Pd-doped ceria-ZnO nanocomposite. JOURNAL OF MASS SPECTROMETRY : JMS 2015; 50:298-307. [PMID: 25800011 DOI: 10.1002/jms.3521] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 09/08/2014] [Accepted: 10/06/2014] [Indexed: 06/04/2023]
Abstract
The photocatalytic degradation of the antibiotic sulfamethazine under excitation at 365 nm of Pd-doped ceria-ZnO nanocomposite, titanium dioxide and iron(III) aqua complex was deeply studied from the analytical point of view. It reveals the formation of nine degradation products that were detected in their protonated forms using LC/electrospray ionization quadrupole time-of-flight MS in the positive mode. Their formation involves the hydroxyl radical, and their concentrations increased with irradiation time. Collision-induced dissociation tandem mass spectrometry associated with the accurate mass measurements was efficiently used for the elucidation of their chemical structures. None of these identified degradation products has been already reported in the literature. Three by-products result from the hydroxylation at the pyrimidine moiety as well as at the aromatic part, two of them arise from the scission of the pyrimidine group, and finally, three of them come from the scission of the sulfamide bridge. This points the evidence of studying the fate of these degradation products if their toxicity is demonstrated because they are clearly the result of the reaction of hydroxyl radical with the antibiotic sulfamethazine.
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Affiliation(s)
- S Rafqah
- Equipe de Chimie Analytique et Environnement (ECAE), Département de Chimie, Faculté Polydisciplinaire de Safi, Université Cadi Ayyad, Marrakesh, Morocco
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21
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Seddigi ZS, Ahmed SA, Bumajdad A, Danish EY, Shawky AM, Gondal MA, Soylak M. The Efficient Photocatalytic Degradation of MethylTert-butyl Ether Under Pd/ZnO and Visible Light Irradiation. Photochem Photobiol 2014; 91:265-71. [DOI: 10.1111/php.12391] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 11/09/2014] [Indexed: 11/28/2022]
Affiliation(s)
- Zaki S. Seddigi
- Department of Environmental Health; Faculty of Public Health and Health Informatics; Umm Al-Qura University; Makkah Saudi Arabia
| | - Saleh A. Ahmed
- Chemistry Department; College of Applied Sciences; Umm Al-Qura University; Makkah Saudi Arabia
| | - Ali Bumajdad
- Chemistry Department; Faculty of Science; Kuwait University; Kuwait City Kuwait
| | - Ekram Y. Danish
- Chemistry Department; College of Sciences; King Abdulaziz University; Jeddah Saudi Arabia
| | - Ahmed M. Shawky
- Science and Technology Unit; Umm Al-Qura University; Makkah Saudi Arabia
| | - Mohammed A. Gondal
- Laser Research Group; Physics Department & Center of Excellence in Nanotechnology; King Fahd University of Petroleum and Minerals; Dhahran Saudi Arabia
| | - Mustafa Soylak
- Erciyes University; Department of Chemistry; Kayseri Turkey
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22
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Seddigi ZS, Ahmed SA, Ansari SP, Yarkandi NH, Danish E, Alkibash AA, Oteef MDY, Ahmed S. The Effect of Loading Palladium on Zinc Oxide on the Photocatalytic Degradation of Methyltert-Butyl Ether (MTBE) in Water. Photochem Photobiol 2014; 90:491-5. [DOI: 10.1111/php.12242] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Accepted: 01/14/2014] [Indexed: 11/30/2022]
Affiliation(s)
- Zaki S. Seddigi
- Chemistry Department; College of Applied Sciences; Umm Al-Qura University; Makkah Saudi Arabia
| | - Saleh A. Ahmed
- Chemistry Department; College of Applied Sciences; Umm Al-Qura University; Makkah Saudi Arabia
| | - Shahid P. Ansari
- Chemistry Department; College of Applied Sciences; Umm Al-Qura University; Makkah Saudi Arabia
| | - Naeema H. Yarkandi
- Chemistry Department; College of Applied Sciences; Umm Al-Qura University; Makkah Saudi Arabia
| | - Ekram Danish
- Chemistry Department; College of Sciences; King Abdulaziz University; Jeddah Saudi Arabia
| | - Abdullah Abu Alkibash
- Chemistry Department; College of Sciences; King Fahd University of Petroleum & Minerals; Dhahran Saudi Arabia
| | - Mohammed D. Y. Oteef
- Chemistry Department; College of Science; King Khalid University; Abha Saudi Arabia
| | - Shakeel Ahmed
- Center for Refining & Petrochemicals; Research Institute; King Fahd University of Petroleum & Minerals; Dhahran Saudi Arabia
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