Article
Environmental Sciences
Xiuwei Ma, Linjun Yang, Yong Hou, Lei Zhou
Summary: The adsorption/desorption behaviors of semi-volatile organic compounds in vapor phase by activated carbon were studied through experiments and density functional theory calculation. Increasing temperature inhibited the adsorption of SVOCs on AC, and the strong interaction between SVOCs and active sites affected the desorption temperature.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Camila Pia Canales, Sebastian Delgado, Lizethly Caceres-Jensen, Arnar Buason, Dadi Kristofersson, Cristian Urdiales, Monica Antilen
Summary: This paper evaluates the adsorption kinetics of the antibiotic Ciprofloxacin (CIPRO) in Ultisol and Andisol soils. The results show that the adsorption of CIPRO best fits the pseudo-second order kinetic model. The study also reveals a lower adsorption capacity of CIPRO in Ultisol, indicating a greater environmental risk.
Article
Chemistry, Physical
Qi He, Junchen Liu, Jiaming Geng, Xindi Sun, Yongcun Feng, Jingen Deng, Baojun Bai
Summary: Polymer nanogels, elastic nanospheres with 3D network structure, have shown potential in enhancing oil recovery. However, their dynamic adsorption and desorption in porous media are still not well understood. In this study, we conducted experiments to investigate these processes in sandstones, and found that nanogels exhibited rapid adsorption and desorption, with the adsorption density ranging from 0.083 to 0.435 mg/g. The adsorption of nanogels increased with their concentration, core permeability, and salt concentration. Salinity played a more important role in the desorption process due to strong interaction with sandstones. Adsorption layer thickness ranged from 0.67 to 2.14, indicating multilayered processes.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Energy & Fuels
Hongkun Jin, Zhongyi An, Qichao Li, Yuanqiang Duan, Zhihao Zhou, Zhenkun Sun, Lunbo Duan
Summary: The study shows that alumina with ordered mesoporous structures exhibits significant catalytic activity in COS hydrolysis, with further improvement when incorporated with transition metals. By optimizing pore size and additive type, a stable catalyst with high efficiency in COS conversion and strong sulfur resistance has been established.
Article
Environmental Sciences
Ula Rozman, Barbara Klun, Gregor Marolt, Jernej Imperl, Gabriela Kalcikova
Summary: In this study, the adsorption and subsequent desorption of titanium dioxide (nTiO2) and zinc oxide (nZnO) nanoparticles, as well as polyethylene microplastics (MPs), in aquatic media were investigated. The results showed that nZnO had a faster adsorption rate than nTiO2, but nTiO2 had a higher adsorption extent on MPs. The low adsorption of nZnO could be attributed to the partial dissolution of zinc from nZnO, which resulted in soluble zinc complexes not being adsorbed on MPs. The adsorption process was found to be controlled by physisorption for both nTiO2 and nZnO. Meanwhile, the desorption of nTiO2 was low and independent of pH, while the desorption of nZnO was pH-dependent, with a higher desorption rate at a slightly acidic pH. These findings provide insights into the complex interactions and fate of MPs and metal engineered nanoparticles in the aquatic environment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Review
Chemistry, Applied
Siu Hua Chang
Summary: This paper provides an overview of Au(III) recovery from aqueous solutions using raw and modified chitosan, focusing on their synthesis, characteristics, modifications, sorption properties, and comparison between the two. The challenges and future prospects of using modified chitosan in large-scale applications for Au(III) recovery from aqueous solutions are also addressed.
CARBOHYDRATE POLYMERS
(2021)
Article
Environmental Sciences
Xiaoxin Chen, Chang-Er Chen, Xiaoyuan Guo, Andrew J. Sweetman
Summary: Plastics degrade in the natural environment due to irradiation, impacting surface properties and pollutant migration behavior. Limited research exists on sorption/desorption behavior of organic pollutants on aged plastics. This study analyzed various commercial plastics and their sorption/release behavior for bisphenols. Results showed oxidization and surface cracks after irradiation, with sorption dominated by hydrophobicity and other factors including electrostatic force and bonding interactions. Desorption kinetics indicated faster release after aging, with hydrophobicity playing a role. Salinity and dissolved organic matter enhanced sorption capacity, while increased temperature promoted bisphenol release from both fresh and aged plastics.
Review
Chemistry, Analytical
Berrak Caliskan, Enes Sayan
Summary: Ultrasound has been successfully and frequently used in adsorption/desorption processes due to its beneficial effects, such as increasing surface area and mass transfer rate, causing micro-cracks on the solid surface, and providing cleaning effects. This review summarizes research on ultrasound-assisted adsorption/desorption, discusses its potential as an alternative method for adsorbent regeneration, and explores the theoretical fundamentals and effects on adsorption isotherms and kinetics.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2022)
Article
Green & Sustainable Science & Technology
Yingshu Liu, Chunyu Zhao, Ziyi Li, Miaomiao Meng, Xiong Yang, Wenbo Bian, Haoyang Wu, Chuanzhao Zhang, Jun Wang, Chuen-Jinn Tsai, Ralph T. Yang
Summary: Through a systematic investigation, FDU-15 and CMK-5 were identified as superior sorbents with high maximum adsorption capacities (1.13 and 1.735 mmol/g) and low desorption activation energy (62.66 and 72.68 kJ/mol) due to their advantageous three-dimensional diffusion-controlled desorption and efficient adsorption properties. These findings highlight the importance of morphology-affinity relationship in achieving comprehensive balances of sorption performances in capturing and recovering naphthalene from hot flue gas.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Marine & Freshwater Biology
Francoise Andrieux-Loyer, Alain Aminot
Summary: This article investigates the kinetics of adsorption-desorption processes of phosphate on sediments using the Langmuir theory. The study has implications for environmental modeling and understanding the cycling of essential nutrients in estuarine and coastal systems.
ESTUARINE COASTAL AND SHELF SCIENCE
(2023)
Article
Engineering, Environmental
Chen Zhou, Ermias Gebrekrstos Tesfamariam, Youneng Tang, Ang Li
Summary: This study quantifies the contributions of adsorption, bioreduction, and desorption in EPS-mediated U(VI) immobilization. Experimental results show that U(VI) immobilization is faster when exposed to H-2 compared to O-2. The kinetic model reveals that adsorption is dominant in the first minute, bioreduction is dominant from the second minute to the 50th minute, and after 50 minutes, bioreduction is balanced by desorption. This study also provides the first set of equilibrium data for U(VI) adsorption by EPS alone and shows that U(VI) adsorption onto EPS is endothermic, spontaneous, and favorable at higher temperatures.
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
(2023)
Article
Engineering, Environmental
Xiaoting Zhang, Mingyu Liu, Runping Han
Summary: In this study, a zirconium-based metal organic framework (UiO-66-NH2) was prepared with a green synthetic method for removal of phosphate from solution. The material showed good adsorption performance for phosphate across a wide pH range and could be easily regenerated for repeated use.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Chemical
Masoud Jahandar Lashaki, Samineh Kamravaei, Zaher Hashisho, John H. Phillips, David Crompton, James E. Anderson, Mark Nichols
Summary: The impact of activated carbon porosity on adsorption-desorption performance was investigated, with higher porosity resulting in higher VOC uptake and longer adsorption breakthrough time. Additionally, activated carbons with higher porosity showed faster kinetics in both adsorption and desorption processes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Perumal Karthikeyan, Sankaran Meenakshi
Summary: A novel and environmentally-friendly chitosan encapsulated magnetic kaolin beads were fabricated and applied for the adsorption of phosphate and nitrate ions from water in this study. The synthesized beads showed promising potential as selective and effective adsorbents for the removal of phosphate and nitrate ions from aqueous solutions.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Engineering, Environmental
R. Mahalakshmi, R. Saravanan, P. Selvakumar, M. S. Karthikeyan, L. Ravikumar
Summary: This paper investigates the use of Schiff base cellulose as a sorbent to remove metal ions from wastewater. The optimal pH, complexation reaction, and ion exchange mechanism were identified, and different adsorption isotherm models indicated the maximum adsorption capacity of the modified cellulose for lead, copper, nickel, and cadmium. Kinetic studies showed that the Langmuir adsorption isotherm is in agreement with the Pseudo-second order kinetic model.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Article
Computer Science, Interdisciplinary Applications
Paylos Kotidis, Panagiotis Demis, Cher H. Goey, Elisa Correa, Calum McIntosh, Stefania Trepekli, Nilay Shah, Oleksiy Klymenko, Cleo Kontoravdi
COMPUTERS & CHEMICAL ENGINEERING
(2019)
Article
Chemistry, Multidisciplinary
Anna Larsson, Soodabeh Majdi, Alexander Oleinick, Irina Svir, Johan Dunevall, Christian Amatore, Andrew G. Ewing
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
Article
Chemistry, Multidisciplinary
Lin Ren, Alexander Oleinick, Irina Svir, Christian Amatore, Andrew G. Ewing
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
Article
Materials Science, Textiles
Ted Stephenson, Caio Carvalho Ellero, Daniel Sebastia-Saez, Oleksiy Klymenko, Angela Maria Battley, Harvey Arellano-Garcia
INTERNATIONAL JOURNAL OF CLOTHING SCIENCE AND TECHNOLOGY
(2020)
Review
Multidisciplinary Sciences
Henry C. Burridge, Rajesh K. Bhagat, Marc E. J. Stettler, Prashant Kumar, Ishanki De Mel, Panagiotis Demis, Allen Hart, Yyanis Johnson-Llambias, Marco-Felipe King, Oleksiy Klymenko, Alison McMillan, Piotr Morawiecki, Thomas Pennington, Michael Short, David Sykes, Philippe H. Trinh, Stephen K. Wilson, Clint Wong, Hayley Wragg, Megan S. Davies Wykes, Chris Iddon, Andrew W. Woods, Nicola Mingotti, Neeraja Bhamidipati, Huw Woodward, Clive Beggs, Hywel Davies, Shaun Fitzgerald, Christopher Pain, P. F. Linden
Summary: The report examines the knowledge of how COVID-19 spreads indoors, reviews evidence for mitigation measures, and considers the importance of ventilation in winter.
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2021)
Article
Electrochemistry
Giovanni Pireddu, Irina Svir, Christian Amatore, Alexander Oleinick
Summary: This study validates the theory developed by Amatore and Saveant 40 years ago for arrays of electroactive band or disk electrodes, demonstrating that competitive diffusion interaction between active sites leads to redistribution of diffusion layers and homogenization of solution volumes. The study also confirms the approximation that the voltammetric behavior of arrays of nanodisk electrodes is similar to that of independent cylindrical unit cells operating in parallel.
Article
Electrochemistry
Baodan Zhang, Wei Wang, Cheng Liu, Lianhuan Han, Juan Peng, Alexander Oleinick, Irina Svir, Christian Amatore, Zhong-Qun Tian, Dongping Zhan
Summary: In this work, a simple and easily applicable voltammetric approach is described to characterize and measure the site-hopping surface diffusion of UPD metal adatoms on nanoelectrodes. By using nanoelectrodes, the major involvement of site-hopping surface diffusion of UPD Pb adatoms on polycrystalline gold was established and quantitatively characterized.
Article
Green & Sustainable Science & Technology
Yiming Jiang, Xuhai Pan, Qiong Cai, Zhilei Wang, Oleksiy Klymenko, Min Hua, Qingyuan Wang, Tao Zhang, Yunyu Li, Juncheng Jiang
Summary: This paper investigates the transformation of self-ignition flame into jet flame in the near-field region of a nozzle, and explores the effects of release pressure and tube length on the transition process. The results show that the expansion processes and shock structure play crucial roles in flame transition, leading to different flame morphologies. The presence of discontinuous surfaces in the shock wave structure can cause the self-ignition flame to extinguish or reignite during transition, resulting in flame appearing in different zones. Five forms of flame transition are proposed and their formation reasons are analyzed, establishing links between different transitions.
Article
Electrochemistry
Donald C. Janda, Kiran Barma, Niraja Kurapati, Oleksiy V. Klymenko, Alexander Oleinick, Irina Svir, Christian Amatore, Shigeru Amemiya
Summary: This study presents a theoretical framework for distinguishing the mechanisms of adsorption-coupled electron-transfer reactions. A common adsorption step model is proposed, and characteristic cyclic voltammetry shapes for different mechanisms during reversible adsorption are predicted. The model is validated through experimental analysis.
ELECTROCHIMICA ACTA
(2022)
Article
Thermodynamics
Yiming Jiang, Xuhai Pan, Qiong Cai, Oleksiy V. Klymenko, Zhilei Wang, Min Hua, Qingyuan Wang, Juncheng Jiang
Summary: This study investigates the evolution of hydrogen flame near the tube exit and finds that the flame evolution is influenced by both shock wave and vortex in the near-field region. Two different types of flame can transform into each other and a hybrid flame can be formed in the transition region. It is also discovered that the flame in the transition region has features of both types and is easily extinguished.
COMBUSTION AND FLAME
(2023)
Article
Green & Sustainable Science & Technology
Ishanki A. De Mel, Panagiotis Demis, Bogdan Dorneanu, Oleksiy V. Klymenko, Evgenia D. Mechleri, Harvey Arellano-Garcia
Summary: Distributed Energy Systems (DES) is crucial for reducing carbon emissions and increasing renewable energy generation as the energy sector undergoes unprecedented changes. However, existing operational DES models fail to consider the impact of uncertain inputs on outputs, leading to poor planning and performance. This paper presents a methodology to analyze the effects of uncertain inputs on the total daily cost of a DES operational model. Global Sensitivity Analysis (GSA) is used to evaluate the effects of individual inputs and their interactions on output variability. The study shows significant cost reductions compared to traditional designs, although the carbon emission savings are relatively smaller.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2023)
Article
Food Science & Technology
Melina Kitsiou, Lisa Purk, Jorge Gutierrez-Merino, Kimon Andreas Karatzas, Oleksiy V. Klymenko, Eirini Velliou
Summary: Concerns about the role of antimicrobial resistance (AMR) in disease outbreaks are increasing due to excessive antibiotic use. Consumers demand minimally processed and sustainably produced food products without chemical preservatives or antibiotics. Grape seed extract (GSE), a natural antimicrobial derived from wine waste, was found to be highly effective against Listeria monocytogenes, but less effective against Escherichia coli and Salmonella Typhimurium. The study provides a quantitative and mechanistic understanding of GSE's impact on foodborne pathogens, assisting in the design of natural antimicrobial-based strategies for sustainable food safety.
Proceedings Paper
Computer Science, Interdisciplinary Applications
Ishanki De Mel, Panagiotis Demis, Bogdan Dorneanu, Oleksiy Klymenko, Evgenia Mechleri, Harvey Arellano-Garcia
30TH EUROPEAN SYMPOSIUM ON COMPUTER AIDED PROCESS ENGINEERING, PTS A-C
(2020)
