1
|
Theodorakopoulos GV, Pylarinou M, Sakellis E, Katsaros FK, Likodimos V, Romanos GE. Mo-BiVO 4 Photocatalytically Modified Ceramic Ultrafiltration Membranes for Enhanced Water Treatment Efficiency. MEMBRANES 2024; 14:112. [PMID: 38786946 PMCID: PMC11122868 DOI: 10.3390/membranes14050112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/04/2024] [Accepted: 05/12/2024] [Indexed: 05/25/2024]
Abstract
This study highlights the effectiveness of photocatalytically modified ceramic ultrafiltration (UF) membranes in alleviating two major drawbacks of membrane filtration technologies. These are the generation of a highly concentrated retentate effluent as a waste stream and the gradual degradation of the water flux through the membrane due to the accumulation of organic pollutants on its surface. The development of two types of novel tubular membranes, featuring photocatalytic Mo-BiVO4 inverse opal coatings, demonstrated a negligible impact on water permeance, ensuring consistent filtration and photocatalytic efficiency and suggesting the potential for maintaining membrane integrity and avoiding the formation of highly concentrated retentate effluents. Morphological analysis revealed well-defined coatings with ordered domains and interconnected macropores, confirming successful synthesis of Mo-BiVO4. Raman spectroscopy and optical studies further elucidated the composition and light absorption properties of the coatings, particularly within the visible region, which is vital for photocatalysis driven by vis-light. Evaluation of the tetracycline removal efficiency presented efficient adsorption onto membrane surfaces with enhanced photocatalytic activity observed under both UV and vis-light. Additionally, vis-light irradiation facilitated significant degradation, showcasing the versatility of the membranes. Total Organic Carbon (TOC) analysis corroborated complete solute elimination or photocatalytic degradation without the production of intermediates, highlighting the potential for complete pollutant removal. Overall, these findings emphasize the promising applications of Mo-BiVO4 photocatalytic membranes in sustainable water treatment and wastewater remediation processes, laying the groundwork for further optimization and scalability in practical water treatment systems.
Collapse
Affiliation(s)
- George V. Theodorakopoulos
- Institute of Nanoscience and Nanotechnology, National Center of Scientific Research “Demokritos”, 15341 Agia Paraskevi, Greece; (E.S.); (F.K.K.)
- Inorganic and Analytical Chemistry Laboratory, School of Chemical Engineering, National Technical University of Athens, Zografou Campus, 9, Iroon Polytechniou Str., 15772 Zografou, Greece
| | - Martha Pylarinou
- Section of Condensed Matter Physics, Department of Physics, National and Kapodistrian University of Athens, 15784 Athens, Greece; (M.P.); (V.L.)
| | - Elias Sakellis
- Institute of Nanoscience and Nanotechnology, National Center of Scientific Research “Demokritos”, 15341 Agia Paraskevi, Greece; (E.S.); (F.K.K.)
- Section of Condensed Matter Physics, Department of Physics, National and Kapodistrian University of Athens, 15784 Athens, Greece; (M.P.); (V.L.)
| | - Fotios K. Katsaros
- Institute of Nanoscience and Nanotechnology, National Center of Scientific Research “Demokritos”, 15341 Agia Paraskevi, Greece; (E.S.); (F.K.K.)
| | - Vlassis Likodimos
- Section of Condensed Matter Physics, Department of Physics, National and Kapodistrian University of Athens, 15784 Athens, Greece; (M.P.); (V.L.)
| | - George Em. Romanos
- Institute of Nanoscience and Nanotechnology, National Center of Scientific Research “Demokritos”, 15341 Agia Paraskevi, Greece; (E.S.); (F.K.K.)
| |
Collapse
|
2
|
Galodiya MN, Chakma S. Immobilization of enzymes on functionalized cellulose nanofibrils for bioremediation of antibiotics: Degradation mechanism, kinetics, and thermodynamic study. CHEMOSPHERE 2024; 349:140803. [PMID: 38040249 DOI: 10.1016/j.chemosphere.2023.140803] [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: 08/01/2023] [Revised: 11/17/2023] [Accepted: 11/22/2023] [Indexed: 12/03/2023]
Abstract
The deteriorating environmental conditions due to increasing emerging recalcitrant pollutants raised a severe concern for its remediation. In this study, we have reported antibiotic degradation using free and immobilized HRP. The functionalized cellulose support was utilized for efficient immobilization of HRP. Approximately 13.32 ± 0.52 mg/g enzyme loading was achieved with >99% immobilization efficiency. The higher percentage of immobilization is attributed to the higher surface area and carboxylic groups on the support. The kinetic parameter of immobilized enzymes was Km = 2.99 mM/L for CNF-CA@HRP, which is 3.5-fold more than the Michaelis constant (Km = 0.84794 mM/L) for free HRP. The Vmax of CNF-CA@HRP bioconjugate was 2.36072 mM/min and 0.558254 mM/min for free HRP. The highest degradation of 50, 54.3, and 97% were achieved with enzymatic, sonolysis, and sono-enzymatic with CNF-CA@HRP bioconjugate, respectively. The reaction kinetics analysis revealed that applying ultrasound with an enzymatic process could enhance the reaction rate by 2.7-8.4 times compared to the conventional enzymatic process. Also, ultrasound changes the reaction from diffusion mode to the kinetic regime with a more oriented and fruitful collision between the molecules. The thermodynamic analysis suggested that the system was endothermic and spontaneous. While LC-MS analysis and OTC's degradation mechanism suggest, it mainly involves hydroxylation, secondary alcohol oxidation, dehydration, and decarbonylation. Additionally, the toxicity test confirmed that the sono-enzymatic process helps toward achieving complete mineralization. Further, the reusability of bioconjugate shows that immobilized enzymes are more efficient than the free enzyme.
Collapse
Affiliation(s)
- Manju Nagar Galodiya
- Department of Chemical Engineering, Indian Institute of Science Education and Research Bhopal, Bhopal, 462 066, Madhya Pradesh, India
| | - Sankar Chakma
- Department of Chemical Engineering, Indian Institute of Science Education and Research Bhopal, Bhopal, 462 066, Madhya Pradesh, India.
| |
Collapse
|
3
|
Durão P, Kis P, Chelo IM, Ventura MR, Martins LO. Environmentally Friendly Degradation and Detoxification of Rifampicin by a Bacterial Laccase and Hydrogen Peroxide. Chembiochem 2024; 25:e202300627. [PMID: 37947295 DOI: 10.1002/cbic.202300627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/09/2023] [Accepted: 11/10/2023] [Indexed: 11/12/2023]
Abstract
Antibiotics are micropollutants accumulating in our rivers and wastewaters, potentially leading to bacterial antibiotic resistance, a worldwide problem to which there is no current solution. Here, we have developed an environmentally friendly two-step process to transform the antibiotic rifampicin (RIF) into non-antimicrobial compounds. The process involves an enzymatic oxidation step by the bacterial CotA-laccase and a hydrogen peroxide bleaching step. NMR identified rifampicin quinone as the main product of the enzymatic oxidation. Growth of Escherichia coli strains in the presence of final degradation products (FP) and minimum inhibitory concentration (MIC) measurements confirmed that FP are non-anti-microbial compounds, and bioassays suggest that FP is not toxic to eukaryotic organisms. Moreover, competitive fitness assays between susceptible and RIF-resistant bacteria show that susceptible bacteria is strongly favoured in the presence of FP. Our results show that we have developed a robust and environmentally friendly process to effectively remediate rifampicin from antibiotic contaminated environments.
Collapse
Affiliation(s)
- Paulo Durão
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av da República, 2780-157, Oeiras, Portugal
| | - Peter Kis
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av da República, 2780-157, Oeiras, Portugal
| | - Ivo M Chelo
- cE3c - Centre for Ecology, Evolution and Environmental Changes & CHANGE - Global Change and Sustainability Institute, 1749-016, Lisboa, Portugal
- Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, 1749-016, Lisboa, Portugal
| | - M Rita Ventura
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av da República, 2780-157, Oeiras, Portugal
| | - Lígia O Martins
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av da República, 2780-157, Oeiras, Portugal
| |
Collapse
|
4
|
Nguyen HVM, Lee DH, Lee HS, Shin HS. Investigating the different transformations of tetracycline using birnessite under different reaction conditions and various humic acids. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 339:122763. [PMID: 37852315 DOI: 10.1016/j.envpol.2023.122763] [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: 07/25/2023] [Revised: 09/27/2023] [Accepted: 10/14/2023] [Indexed: 10/20/2023]
Abstract
Prior studies have successfully used manganese oxides to facilitate the transformation of tetracycline in aqueous solution. To further understand the kinetic and the transformation pathway of tetracycline via birnessite (δ-MnO2) under different conditions, experiments were conducted at pH levels of 3, 6, and 9 in the presence or absence of Aldrich humic acid (ADHA). Tetracycline removal followed the pseudo-second-order reaction model in all investigated cases, and the removal efficiency (g mg-1 h -1) followed the following trend: pH 3 (0.45/0.27) > pH 6 (0.036/0.087) > pH 9 (0.036/0.103) in the absence/presence of ADHA. Liquid chromatography-mass spectrometry/mass spectrometry results identified five main transformation products at m/z 495, 477, 493, 459, and 415, produced by the transformation reactions, including hydration, oxidation, desaturation, and oxy reduction. Notably, in the presence of ADHA at pH 3, products with higher toxicity secondary (m/z 477 and 495) were reduced, while less toxicity products (m/z 459 and 415) were enhanced. The experiments utilizing tetracycline and δ-MnO2 with varied humic acids (HA) revealed that HA with high polar organic carbon groups, such as O-alkyl, exhibited higher removal efficiency at pH 6. This research offers the first comprehensive insights into the pathway transformations of tetracycline via δ-MnO2 under different pH conditions and HA types. For further understanding, future work should investigate the binding of HA, TTC, and/or Mn2+ and the oxidation capacity of MnO2 after the reaction to clarify Mn2+ elution mechanisms.
Collapse
Affiliation(s)
- Hang Vo-Minh Nguyen
- Department of Environment Energy Engineering, Seoul National University of Science & Technology, 232 Gongneung-ro, Seoul, 01811, South Korea.
| | - Doo-Hee Lee
- Mass Spectrometer Laboratory, National Instrumentation Center for Environmental Management, 1 Gwanak-ro, Seoul, 08826, South Korea.
| | - Han-Saem Lee
- Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, T2N 1N4, Canada.
| | - Hyun-Sang Shin
- Department of Environment Energy Engineering, Seoul National University of Science & Technology, 232 Gongneung-ro, Seoul, 01811, South Korea.
| |
Collapse
|
5
|
Agurokpon D, Louis H, Benjamin I, Godfrey OC, Ghotekar S, Adeyinka AS. Impact of Polythiophene ((C 4H 4S) n; n = 3, 5, 7, 9) Units on the Adsorption, Reactivity, and Photodegradation Mechanism of Tetracycline by Ti-Doped Graphene/Boron Nitride (Ti@GP_BN) Nanocomposite Materials: Insights from Computational Study. ACS OMEGA 2023; 8:42340-42355. [PMID: 38024685 PMCID: PMC10652268 DOI: 10.1021/acsomega.3c04625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 09/08/2023] [Indexed: 12/01/2023]
Abstract
This study addresses the formidable persistence of tetracycline (TC) in the environment and its adverse impact on soil, water, and microbial ecosystems. To combat this issue, an innovative approach by varying polythiophene ((C4H4S)n; n = 3, 5, 7, 9) units and the subsequent interaction with Ti-doped graphene/boron nitride (Ti@GP_BN) nanocomposites was applied as catalysts for investigating the molecular structure, adsorption, excitation analysis, and photodegradation mechanism of tetracycline within the framework of density functional theory (DFT) at the B3LYP-gd3bj/def2svp method. This study reveals a compelling correlation between the adsorption potential of the nanocomposites and their corresponding excitation behaviors, particularly notable in the fifth and seventh units of the polythiophene configuration. These units exhibit distinct excitation patterns, characterized by energy levels of 1.3406 and 924.81 nm wavelengths for the fifth unit and 1.3391 and 925.88 nm wavelengths for the seventh unit. Through exploring deeper, the examination of the exciton binding energy emerges as a pivotal factor, bolstering the outcomes derived from both UV-vis transition analysis and adsorption exploration. Notably, the calculated exciton binding energies of 0.120 and 0.103 eV for polythiophene units containing 5 and 7 segments, respectively, provide compelling confirmation of our findings. This convergence of data reinforces the integrity of our earlier analyses, enhancing our understanding of the intricate electronic and energetic interplay within these intricate systems. This study sheds light on the promising potential of the polythiophene/Ti-doped graphene/boron nitride nanocomposite as an efficient candidate for TC photodegradation, contributing to the advancement of sustainable environmental remediation strategies. This study was conducted theoretically; hence, experimental studies are needed to authenticate the use of the studied nanocomposites for degrading TC.
Collapse
Affiliation(s)
- Daniel
C. Agurokpon
- Computational
and Bio-Simulation Research Group, University
of Calabar, Calabar 540221, Nigeria
| | - Hitler Louis
- Computational
and Bio-Simulation Research Group, University
of Calabar, Calabar 540221, Nigeria
- Department
of Pure and Applied Chemistry, University
of Calabar, Calabar 540221, Nigeria
- Centre for
Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital
and Research Institute, Chettinad Academy
of Research and Education, Kelambakkam 603103, Tamil Nadu India
| | - Innocent Benjamin
- Computational
and Bio-Simulation Research Group, University
of Calabar, Calabar 540221, Nigeria
| | - Obinna C. Godfrey
- Computational
and Bio-Simulation Research Group, University
of Calabar, Calabar 540221, Nigeria
- Department
of Biochemistry, University of Calabar, Calabar 540221, Nigeria
| | - Suresh Ghotekar
- Department
of Chemistry, Smt. Devkiba Mohansinhji, Chauhan College of Commerce
and Science, University of Mumbai, Silvassa 396, India
| | - Adedapo S. Adeyinka
- Department
of Chemical Sciences, University of Johannesburg, Auckland Park 2006, South-Africa
| |
Collapse
|
6
|
Guo J, Zhang Y. Reactive Molecular Dynamics Simulation on Degradation of Tetracycline Antibiotics Treated by Cold Atmospheric Plasmas. Molecules 2023; 28:molecules28093850. [PMID: 37175259 PMCID: PMC10180419 DOI: 10.3390/molecules28093850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 04/25/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
The abuse of tetracycline antibiotics (TCs) has caused serious environmental pollution and risks to public health. Degradation of TCs by cold atmospheric plasmas (CAPs) is a high efficiency, low energy consumption and environmentally friendly method. In this study, a reactive molecular dynamics (MD) simulation is applied to study the interactions of reactive oxygen species (ROS) produced in CAPs and TCs (including tetracycline (TC), oxytetracycline (OTC), chlortetracycline (CTC) and demeclocycline (DMC)). As revealed by the simulation data at the atomic level, the main reaction sites on TCs are the C2 acylamino, the C4 dimethylamine, the C6 methyl group, the C8 site on the benzene ring and the C12a tertiary alcohol. The interaction between ROS and TCs is usually initiated by H-abstraction, followed by the breaking and formation of the crucial chemical bonds, such as the breaking of C-C bonds, C-N bonds and C-O bonds and the formation of C=C bonds and C=O bonds. Due to the different structures of TCs, when the ROS impact OTC, CTC and DMC, some specific reactions are observed, including carbonylation at the C5 site, dechlorination at the C7 site and carbonylation at the C6 site, respectively. Some degradation products obtained from the simulation data have been observed in the experimental measurements. In addition, the dose effects of CAP on TCs by adjusting the number of ROS in the simulation box are also investigated and are consistent with experimental observation. This study explains in detail the interaction mechanisms of degradation of TCs treated by CAPs with the final products after degradation, provides theoretical support for the experimental observation, then suggests optimization to further improve the efficiency of degradation of TCs by CAPs in applications.
Collapse
Affiliation(s)
- Jinsen Guo
- School of Electrical Engineering, Shandong University, Jinan 250061, China
| | - Yuantao Zhang
- School of Electrical Engineering, Shandong University, Jinan 250061, China
| |
Collapse
|