Article
Engineering, Multidisciplinary
Andrea Villa, Luca Barbieri, Roberto Malgesini, Giacomo Buccella
Summary: This paper aims to simulate plasma-solid interaction in real insulating components using first-principle partial differential equations. A filtering method is applied to allow the use of larger time steps in simulating realistic components. The novel theoretical analysis shows that the filter does not affect the accuracy of the method, as supported by significant numerical experiments.
APPLIED MATHEMATICAL MODELLING
(2021)
Review
Environmental Sciences
Guntur Adisurya Ismail, Hiroshi Sakai
Summary: The textile industry, a vital sector in developing countries, faces increasing environmental concerns, particularly regarding the high color and COD concentration in its wastewater. Advanced oxidation processes (AOPs) are considered the best technology for color removal, but the understanding of the reaction mechanisms is still limited.
Article
Computer Science, Interdisciplinary Applications
Andrea Villa, Roger Schurch, Giacomo Buccella, Luca Barbieri, Christian Laurano, Roberto Malgesini, Daniele Palladini
Summary: Plasma simulation is becoming increasingly important in electrical engineering to replicate technically relevant configurations, such as the evolution of partial discharges. A proper numerical filter can address the challenges caused by high surface conductivity and greatly enhance the performance of simulation algorithms.
JOURNAL OF COMPUTATIONAL PHYSICS
(2022)
Article
Engineering, Environmental
Deepshikha Pandey, Achlesh Daverey, Kasturi Dutta, Kusum Arunachalam
Summary: Textile industries produce wastewater with harmful azo dyes that are known to be carcinogenic and mutagenic. This study evaluates the potential use of enzyme immobilized biochar for removing azo dyes from real and simulated textile effluents. The results show that the enzyme immobilized system can achieve high removal efficiency for individual azo dyes in the simulated effluent and for one dye peak in the real effluent. The presence of metabolite in the real effluent indicates the degradation of the dye. Therefore, enzyme immobilized biochar system can be used for simultaneous adsorption and degradation of toxic azo dyes from real effluents.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Physics, Fluids & Plasmas
N. Yu Babaeva, G. Naidis
Summary: The study focuses on CO2 molecule conversion through electron impact dissociation, estimating efficiency using various dissociation cross sections. The best fit with experimental data for corona and dielectric-barrier discharges is found using Phelps' cross section for excitation of electronic states with an energy threshold of 10.5 eV under specific electric field conditions.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2021)
Article
Computer Science, Interdisciplinary Applications
Andrea Villa, Roger Schurch, Luca Barbieri, Roberto Malgesini, Giacomo Buccella
Summary: The study of cold plasma is a highly active field of applied physics with a wide range of technical applications. Various models, including the local electric field approximation and the local mean energy approximation, have been considered. This research explores a new numerical scheme and tests its performance in different scenarios.
JOURNAL OF COMPUTATIONAL PHYSICS
(2021)
Article
Physics, Fluids & Plasmas
Min Jeong Seong, Yun Jeong Ha, Gun Hyeon Park, Sun Ja Kim, Hea Min Joh, T. H. Chung
Summary: This article presents a dielectric-barrier-discharge-based square unipolar microsecond-pulsed helium atmospheric pressure plasma jet (APPJ). A simplified equivalent circuit model and transferred charge measurement were used to characterize the APPJ. The effects of operational parameters on the performance of the plasma jet and the properties of liquid media treated by the plasma were investigated, and the correlation between plasma characteristics and properties of plasma-treated liquid was discussed.
PHYSICS OF PLASMAS
(2023)
Article
Energy & Fuels
Nelson Bravo-Yumi, Martin Pacheco-Alvarez, Erick R. Bandala, Enric Brillas, Juan M. Peralta-Hernandez
Summary: Electrochemical oxidation is an efficient method for treating highly polluted wastewater by converting organic compounds into inorganic molecules. In this study, MMO electrode was used for the electrochemical oxidation of azo dyes used in the tannery industry, and the effect of different parameters on the oxidation process was investigated. The results showed that high-efficiency electrochemical oxidation of azo dyes can be achieved under certain conditions, and the oxidation level was evaluated.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2022)
Review
Engineering, Environmental
J. Ambigadevi, P. Senthil Kumar, Dai-Viet N. Vo, S. Hari Haran, T. N. Srinivasa Raghavan
Summary: The textile industry plays a significant role in the Indian economy, however, the synthetic dyes used in this industry pose a serious threat to the environment. Heterogeneous photocatalysis using semiconductor-based nanoparticles has emerged as an effective solution for treating textile effluent and various nanostructures have shown promising results in degrading harmful pollutants.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Physics, Fluids & Plasmas
K. Rasek, F. X. Bronold, H. Fehske
Summary: This study investigates the self-consistent ambipolar charge kinetics across a negatively biased semiconducting plasma-solid interface. By calculating and visualizing, the study shows that the current-voltage characteristic is influenced by the electron microphysics of the semiconductor, indicating that the perfect absorber model commonly used for plasma-solid interfaces cannot be maintained for semiconducting interfaces.
Article
Environmental Sciences
Leena Merlin Biju, V Pooshana, P. Senthil Kumar, K. Veena Gayathri, Sabah Ansar, Saravanan Govindaraju
Summary: This study examined the removal of mixed azo dyes and Cr(VI) metal in synthetic textile wastewater using haloalkaliphilic bacterial strains in a Moving Bed Biofilm Reactor. The results showed efficient decolorization of dyes and degradation of the metal, even at higher concentrations, by the eco-friendly bacterial consortium. Molecular and morphological characterization of the bacterial strains, along with analysis of metabolites, supported the findings of hazardous pollutant degradation and simultaneous dye decolorization.
Article
Green & Sustainable Science & Technology
Patricia Lopez-Casaperalta, Fredy Nicolas Molina-Rodriguez, Fernando Fernandez-F, Jeanette Fabiola Diaz-Quintanilla, Jaime E. Barreda-Del-Carpio, Julio Cesar Bernabe-Ortiz, Jorge Alberto Aguilar-Pineda
Summary: Textile effluents from dyeing processes pose significant problems for aquatic ecosystems and human health. This research presents the optimization of a feasible and efficient treatment system that improves effluent quality and allows for water reuse. By characterizing influents and effluents, seven important parameters were identified for treatment optimization. The results showed that using combustion gases and new flocculant-coagulant reagents improved various parameters. The obtained effluent quality allowed for reuse in pre-dyeing stages without impacting the final quality of cotton fabrics. This effort has the potential to save water and supplies, as well as improve the environmental conditions of the region.
Article
Environmental Sciences
Shantkriti Srinivasan, Paul Olusegun Bankole, Senthil Kumar Sadasivam
Summary: This study investigated the decolorization efficiency of selective reactive azo dyes by non-adapted Lysinibacillus sphaericus MTCC 9523 in optimized conditions, with visual color changes and spectroscopic analysis confirming decolorization. HPLC analysis showed differences in retention time between control and treated samples, supporting biodegradation, while GC-MS analysis revealed the chemical identities of metabolites and predicted the metabolic pathways of degradation for each dye. Overall, the use of adapted and non-adapted microbes is a promising, cost-effective and time-saving green strategy for the biodegradation of textile effluent containing azo dyes.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Physics, Applied
Hang Hu, Dongsheng Li, Weijun Zhu
Summary: This paper proposes a novel PTFE-PDMS sandwich structure with enhanced piezoelectric performances, high stability, and applicability in the field of energy harvesting. The structure demonstrates remarkable sensitivity, thermal stability, and the ability to retain piezoelectric activity even after immersion in water for 24 hours. The experiment of lighting an LED by hand pressing successfully highlights the potential of this structure for practical applications.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Physics, Applied
Xu-Cheng Wang, Yuan-Tao Zhang
Summary: Non-thermal plasma technology is a promising solution for decomposing CO (2), and this study proposes a deep neural network (DNN) to describe the discharge characteristics and plasma chemistry of CO (2) pulsed discharge at atmospheric pressure. The DNN is trained using fluid model simulation data and shown to provide accurate results in a fraction of the time compared to traditional simulations. The DNN prediction results indicate the influence of pulse rise rate and plateau duration on discharge current, breakdown voltage, electric field, and product species density. Overall, this study demonstrates the reliability and potential of DNN-based methods in non-thermal plasma applications.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Physical
Marija Ajdukovic, Stevan Stojadinovic, Sanja Marinovic, Aleksandra Milutinovic-Nikolic, Biljana Dojcinovic, Predrag Bankovic
APPLIED SURFACE SCIENCE
(2020)
Article
Biochemistry & Molecular Biology
Aleksandar Savic, Nevenka Gligorijevic, Sandra Arandelovic, Biljana Dojcinovic, Anna M. Kaczmarek, Sinisa Radulovic, Rik Van Deun, Kristof Van Hecke
JOURNAL OF INORGANIC BIOCHEMISTRY
(2020)
Article
Materials Science, Coatings & Films
Nora Trklja Boca, Zarko Z. Miskovic, Radivoje M. Mitrovic, Bratislav M. Obradovic, Milorad M. Kuraica
Summary: The magnetoplasma compressor (MPC) is used for treatment and alloying of steel samples, with a high-speed plasma flow melting the surface and creating a new thin layer, resulting in a significant improvement of hardness after treatment within MPC.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Textiles
Ana D. Kramar, Bratislav M. Obradovic, Sonja Schiehser, Antje Potthast, Milorad M. Kuraica, Mirjana M. Kostic
Summary: Plasma pretreatment of raw cotton fibers combined with silver sorption enhances the antimicrobial activity of fabrics, with significantly higher silver sorption observed when conducted seven days after plasma treatment, highlighting the importance of plasma aging as a factor in fibers' functionalization.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Chemistry, Physical
Katarina Dimic-Misic, Mirjana Kostic, Bratislav Obradovic, Milorad Kuraica, Ana Kramar, Monireh Imani, Patrick Gane
Summary: The cellulose films obtained from refined pulp with different enzymatic pretreatment digestion times were exposed to gas plasma, resulting in surface chemical and morphological changes affecting mechanical and surface properties. Single and dual exposure to oxygen and nitrogen plasma showed differing effects on the roughness, nanostructural and chemical changes, and wettability of the cellulose film. Oxygen plasma induced greater morphological change, while nitrogen plasma contributed more to chemical modification of the film surface.
Article
Chemistry, Physical
Matea Korica, Zdenka Persin, Lidija Fras Zemljic, Katarina Mihajlovski, Biljana Dojcinovic, Snezana Trifunovic, Alenka Vesel, Tanja Nikolic, Mirjana M. Kostic
Summary: This research introduced two pretreatments of viscose fabrics, oxidizing with TEMPO and coating with TOCN, to enhance the washing durability of antibacterial properties of chitosan nanoparticles functionalized fabrics. The pretreatments improved the antimicrobial activity against S. aureus even after five washing cycles and preserved antibacterial activity against E. coli with NCS + Zn functionalized pretreated viscose fabrics after one washing cycle.
Article
Food Science & Technology
Darko Micic, Sasa Durovic, Pavel Riabov, Ana Tomic, Olja Sovljanski, Snezana Filip, Tomislav Tosti, Biljana Dojcinovic, Rade Bozovic, Dusan Jovanovic, Stevan Blagojevic
Summary: Rosemary is a widely cultivated plant used mainly for essential oils and spice, with diverse composition affecting quality, biological activity, and thermal properties. Essential oils from Serbia and Russia have different chemical compositions and properties, with Russian oil showing higher antimicrobial activity and Serbian oil exhibiting better antioxidant performance during frying. This could potentially impact the use of these oils as antioxidant agents for extending food shelf life or as antimicrobial agents.
Review
Physics, Applied
Vesna V. Kovacevic, Goran B. Sretenovic, Bratislav M. Obradovic, Milorad M. Kuraica
Summary: The article reviews recent progress and insights in the study of low-temperature plasmas in contact with liquids at atmospheric pressure. It focuses on the breakdown mechanisms in discharges in contact with liquid, the specificities of plasma jets impinging on the liquid surface, and discharge generation with a high overvoltage. The article also covers innovative approaches in the generation of plasma in contact with liquids, as well as novel phenomena detected by imaging techniques and measurement of discharge parameters.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Physics, Fluids & Plasmas
Sasa S. Ivkovic, Nikola Cvetanovic, Bratislav M. Obradovic
Summary: A systematic study was conducted on the influence of gas flow rate on helium dielectric barrier discharge. The study focused on the relationship between gas flow rate and impurity level, as well as the consequent changes in discharge operation. The results showed a non-linear decrease in impurity concentration with increasing gas flow rate. Changes in electrical properties, such as breakdown voltage and current density, were observed with the gas flow. The study also revealed a change in excitation mechanism with variation in gas flow. The decrease in impurities was found to be the main mechanism behind the changes in discharge behavior.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2022)
Article
Polymer Science
Matea D. Korica, Ana Kramar, Zdenka Persin Fratnik, Bratislav Obradovic, Milorad M. Kuraica, Biljana Dojcinovic, Lidija Fras Zemljic, Mirjana Kostic
Summary: This study aimed to improve the antibacterial properties and washing durability of viscose textiles by using nonthermal gas plasma and functional coatings. The viscose fabric was modified with chitosan/zinc nanoparticles to enhance its functional groups for attachment of the coatings. The results showed that the plasma modification contributed to improved adsorption and antibacterial properties of the functionalized fabrics, making them suitable for high-value-added medical textiles.
Article
Green & Sustainable Science & Technology
Aleksandra Ivanovska, Marija Milosevic, Bratislav Obradovic, Zorica Svircev, Mirjana Kostic
Summary: In this study, raw jute fabric was treated with atmospheric pressure dielectric barrier discharge to improve its wettability. The changes in surface chemistry and morphology of the fabric were evaluated using spectroscopy and microscopy. The results showed that the plasma treatment enhanced the wettability of the fabric by altering its surface chemistry and morphology. The treated fabric could be utilized as a water-binding polysaccharide support for the growth of cyanobacterial biocrusts.
Article
Optics
M. E. Pinchuk, G. B. Sretenovic, N. Cvetanovic, A. A. Dyachenko, B. M. Obradovic, O. M. Stepanova
Summary: The non-uniform distribution of electric field in an atmospheric pressure helium plasma jet was determined using the Stark spectroscopy technique. The jet was generated by tailoring applied voltage pulses and oscillations, allowing the guided streamer to propagate stepwise. The electric field distribution along the jet reflects the dynamics of the streamer propagation, with field weakening during stagnation and field strengthening during subsequent voltage fronts, accelerating the guided streamer.
EUROPEAN PHYSICAL JOURNAL D
(2023)
Article
Chemistry, Multidisciplinary
Milos Ognjanovic, Zeljko Jacimovic, Milica Kosovic-Perutovic, Irina Besu Zizak, Tatjana Stanojkovic, Zeljko Zizak, Biljana Dojcinovic, Dalibor M. Stankovic, Bratislav Antic
Summary: Partial cation substitution can change the physical properties of compounds, and in this study, yttrium-substituted iron oxide nanoconstructs (YIONs) were prepared. The Y3+ substitution in maghemite (γ-Fe2O3) crystal structures was limited to 1.5%. The YIONs showed excellent heating efficiency and low toxicity, making them suitable for potential medical and technological applications such as magnetic hyperthermia cancer treatment and catalysis.
Article
Horticulture
Milica Fotiric Aksic, Zivoslav Tesic, Milica Kalaba, Ivanka Ciric, Lato Pezo, Biljana Loncar, Uros Gasic, Biljana Dojcinovic, Tomislav Tosti, Mekjell Meland
Summary: The aim of this study was to identify the chemical parameters for distinguishing plum cultivars grown in different regions of Norway. Chemical analysis of 68 plum cultivars revealed variations in the contents of elements, sugars, organic acids, phenolic compounds, and antioxidant activity. These differences have implications for human health and future breeding efforts.
