Article
Chemistry, Physical
Yu-Yi Shen, Chung-Chun Hsu, Shao-Wei Tsai, Chia-Hung Hou
Summary: This study improved the electrosorptive removal of phosphate in membrane capacitive deionization by coating an activated carbon electrode with a heterogeneous anion-exchange resin layer. The AE-AC composite electrode significantly increased the selectivity coefficient of phosphate over chloride and improved the electrosorption capacity of phosphate.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Environmental Sciences
V Jayakumar, S. Govindaradjane, P. Senthil Kumar, N. Rajamohan, M. Rajasimman
Summary: This study demonstrated the feasibility of cadmium removal using green algae, Caulerpa scalpelliformis, under controlled environmental conditions. The optimized conditions for maximum cadmium uptake were determined to be pH 4.9, adsorbent mass 2.1 gL-1, and shaking speed 90 rpm. The biosorption process was found to be endothermic, with a maximum cadmium uptake of 111.11 mg g-1 achieved at optimal conditions.
ENVIRONMENTAL RESEARCH
(2021)
Article
Chemistry, Physical
Sen Yang, Xiantang Liu, Gang Yang
Summary: This study uses molecular dynamics simulations to investigate cation exchange mechanisms at clay interfaces, revealing different selectivities for various binary ion systems and highlighting the strong coupling between thermodynamics, kinetics, and confinement effects. The results provide new insights into cation exchange processes at clay interfaces and offer explanations for experimental observations at the molecular level.
APPLIED CLAY SCIENCE
(2021)
Article
Chemistry, Physical
V Jayakumar, S. Govindaradjane, M. Rajasimman
Summary: The sorption efficiency of marine green macro algae Caulerpa scalpelliformis for heavy metal zinc from aqueous and industrial wastewater was explored in this study. The characteristics of the sorbent prepared, optimum operating conditions, and equilibrium studies were investigated. Results showed that the sorption mechanism followed pseudo-second order kinetics, with the Langmuir isotherm model fitting the data well and showing a maximum uptake of 83.3 mg/g of zinc. Overall, the sorption of zinc on green biomass was found to be feasible, spontaneous, and endothermic.
SURFACES AND INTERFACES
(2021)
Article
Engineering, Chemical
Almagul Ultarakova, Zaure Karshyga, Nina Lokhova, Azamat Yessengaziyev, Kaisar Kassymzhanov, Arailym Mukangaliyeva
Summary: This study investigated the sorption of niobium from chloride solutions using various anion-exchange organic sorbents. The Purolite A-100 resin showed the highest affinity for niobium ions, with a distribution coefficient of 184 mL/g and an extraction degree of 41.5%. The Langmuir model was found to be in good agreement with the experimental results, indicating monomolecular layer adsorption on the homogeneous adsorption centers of the resin. The optimal conditions for niobium sorption by the Purolite A-100 resin were determined as hydrochloric acid concentration of 5-10 wt.%, process temperature of 35-40 degrees C, and duration of 40-50 min. The activation energy for niobium sorption from hydrochloric acid solution was calculated to be 25.32 kJ/mol, suggesting a transition from diffusion to kinetic mode.
Article
Chemistry, Multidisciplinary
Marta Marszalek, Ewa Knapik, Marcin Piotrowski, Katarzyna Chruszcz-Lipska
Summary: This article studies the adsorption of cadmium from a 40% phosphoric acid solution in the presence of chloride ions using commercially available anion exchange resins. The effect of chloride and cadmium concentrations on adsorption with the use of two resins is studied in depth. The results indicate that the Amberlite PWA5 resin has advantages in cadmium adsorption efficiency, adsorption at low chloride concentrations, and operation at high flow rates.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Engineering, Environmental
Chen Liu, Jenna Chu, Natalie L. Capiro, John D. Fortner, Kurt D. Pennell
Summary: The study evaluated the in situ delivery and PFAS sorption capacity of a polymer-stabilized ion exchange resin, showing promising results in adsorbing PFAS in a certain concentration range. Injection of the resin into quartz sand increased retention of PFOA or PFOS significantly, suggesting a potential effective in situ remediation strategy for PFAS-impacted groundwater plumes.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Ivan Argatov, Johan Engblom, Vitaly Kocherbitov
Summary: In this study, a new flexible fitting model is introduced to validate the water sorption characteristics of the components in the stratum corneum. The results show that the lipids content has a negligible effect on the sorption of stratum corneum, and the overall sorption behavior can be well explained by the rule of mixtures.
BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES
(2022)
Article
Materials Science, Paper & Wood
Wei Cao, Hao Li, Yixia Hong, Ziyi Yang, Minglai Fu
Summary: Biosorption is a promising technique for removing heavy metals from water. In this study, a new spherical lignocellulose-based anion exchanger (LCB-AE) was prepared from sugarcane bagasse. The LCB-AE showed a macro-porous structure, a rough surface, and good adsorption selectivity and capacity.
Article
Polymer Science
Khalid A. M. Salih, Kanggen Zhou, Mohammed F. Hamza, Hamed Mira, Yuezhou Wei, Shunyan Ning, Eric Guibal, Waheed M. Salem
Summary: The objective of this study is to design a new sorbent for the simultaneous recovery of Cs(I) and Sr(II) metals with selectivity against other metals. The functionalization of algal/polyethyleneimine hydrogel beads by phosphonation enhances sorption capacities and stability, and provides greater selectivity against alkali, alkaline-earth, and heavy metal ions. The sorption properties of the modified sorbent are compared with the pristine support under different conditions, and the superiority of the phosphonated sorbent is confirmed.
Review
Environmental Sciences
Sumona Show, Prasenjit Chakraborty, Bisheswar Karmakar, Gopinath Halder
Summary: The continuous discharge of ibuprofen in local water systems has become a growing concern due to its adverse environmental effects. In order to prevent further pollution, adsorption and bioremediation are considered more cost-effective and energy efficient methods for ibuprofen removal.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Analytical
Yuting Zhao, Jie Li, Long Chen, Qi Guo, Lingyi Li, Zhifang Chai, Shuao Wang
Summary: We introduced a bifunctional anion exchange resin, Purolite A530E, for efficient removal of iodide and iodate from aqueous solution. The resin exhibited a high affinity for iodide (99%) over iodate (9.7%), and a maximum adsorption capacity of 275.16 mg·g-1, surpassing most other adsorbents. Moreover, Purolite A530E demonstrated excellent selectivity for iodide over competing anions, enabling over 99% removal in simulated Hanford groundwater.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2023)
Article
Environmental Sciences
Jesus Rodriguez-Iglesias, Lara Alcala, Laura Megido, Leonor Castrillon
Summary: In this study, ion exchange technology was used to reduce the fluoride content in effluent from a coke wastewater treatment plant, with Al-doped TP260 resin showing better removal efficiency compared to Al-doped TP207 resin. Kinetic and isotherm studies confirmed the optimal conditions for the ion exchange process, indicating higher sorption capacity for the Al-doped TP260 resin.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Hongjie Sheng, Yuan Yin, Leilei Xiang, Ziquan Wang, Jean Damascene Harindintwali, Jinjin Cheng, Jing Ge, Leigang Zhang, Xin Jiang, Xiangyang Yu, Fang Wang
Summary: This study investigated the mechanisms of interactions between N-acyl homoserine lactones (AHLs) and two maize straw-derived biochars (MBs) with different pyrolysis temperatures. It was found that biochar had the ability to adsorb AHLs, with higher sorption capacity observed in biochar pyrolyzed at 600 degrees C. The findings suggest that biochar can be specially prepared to mediate soil processes related to microbial communication.
Article
Engineering, Environmental
Anderson C. Ellis, Treavor H. Boyer, Yida Fang, Charlie J. Liu, Timothy J. Strathmann
Summary: Anion exchange resin (AER) systems employing single-use PFAS-selective resins have lower environmental impacts and costs compared to regenerable resins or GAC adsorbents. The use of GAC as a single-use adsorbent leads to the highest emissions and treatment costs, but impacts can be reduced with thermal reactivation. Sensitivity analysis highlights the importance of media usage rate (MUR) in determining environmental impacts and costs.
Article
Engineering, Chemical
Ekaterina S. Borovinskaya
CHEMIE INGENIEUR TECHNIK
(2018)
Article
Engineering, Chemical
Ekaterina S. Borovinskaya, Daniel Sabaditsch, Wladimir Reschetilowski
CHEMICAL ENGINEERING & TECHNOLOGY
(2019)
Article
Chemistry, Multidisciplinary
Valentin Khaydarov, Ekaterina S. Borovinskaya, Wladimir Reschetilowski
APPLIED SCIENCES-BASEL
(2018)
Article
Multidisciplinary Sciences
Valery Ochkov, Massimiliano Nori, Ekaterina Borovinskaya, Wladimir Reschetilowski
Article
Chemistry, Multidisciplinary
Ekaterina Borovinskaya, Valentin Khaydarov, Nicole Strehle, Alexander Musaev, Wladimir Reschetilowski
APPLIED SCIENCES-BASEL
(2019)
Article
Chemistry, Physical
Ekaterina S. Borovinskaya, Sebastian Trebbin, Felix Alscher, Cornelia Breitkopf
Article
Chemistry, Multidisciplinary
Ekaterina Borovinskaya, Eva Ritter, Wladimir Reschetilowski
APPLIED SCIENCES-BASEL
(2020)
Article
Biochemistry & Molecular Biology
Ekaterina S. Borovinskaya, Steffen Oswald, Wladimir Reschetilowski
Article
Multidisciplinary Sciences
Alexander Musaev, Ekaterina Borovinskaya
Article
Chemistry, Physical
Fabian Nadolny, Felix Alscher, Stephan Peitz, Ekaterina Borovinskaya, Robert Franke, Wladimir Reschetilowski
Article
Multidisciplinary Sciences
Alexander Musaev, Ekaterina Borovinskaya
Summary: This article discusses the problem of dynamically adapting prediction algorithms in chaotic environments by identifying analogous situations in historical observation data, proposing a dynamic adaptation of precedent analysis algorithms based on evolutionary modeling.
Article
Chemistry, Physical
Ekaterina Borovinskaya
Summary: A new approach for formulating redundancy-free models for three-phase catalytic hydrogenation of cinnamaldehyde is presented in this study, with models based on formal kinetics and the Langmuir-Hinshelwood theory being investigated. The redundancy-free models were obtained by eliminating model parameters step by step using sensitivity and interval analysis. The model based on the Langmuir-Hinshelwood mechanism has fewer parameters compared to the model based on formal kinetics.
Article
Mathematics
Valery Ochkov, Inna Vasileva, Ekaterina Borovinskaya, Wladimir Reschetilowski
Summary: This paper introduces an approach to build new classes of symmetric closed curves by generalizing classical definitions, and presents a universal numerical method for creating such curves in mathematical packages. It also discusses specific aspects of using B-splines for three-dimensional modeling in computer-aided design systems, demonstrating the applicability and high smoothness achievable with this method.
Article
Chemistry, Physical
Felix Alscher, Fabian Nadolny, Henrik Frenzel, Johannes Knossalla, Stephan Peitz, Ekaterina Borovinskaya, Cornelia Breitkopf, Robert Franke, Wladimir Reschetilowski
CATALYSIS SCIENCE & TECHNOLOGY
(2019)