Article
Chemistry, Physical
Ahmed Shahat, Khadiza Tul Kubra, Adel El-marghany
Summary: A high-potential nanoadsorbent was synthesized and characterized for its efficiency in adsorbing triclosan (TCS) from aqueous solutions. The adsorption equilibrium was found to be influenced by the pH of the solution. The adsorption process followed a chemisorption technique, as evidenced by fitting the adsorption isotherm models to a Langmuir model. The synthesized MCNS adsorbent showed remarkable reusability and renderability, making it suitable for water filtration and industrial wastewater treatment.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Engineering, Chemical
Ali Riza Kul, Adnan Aldemir, Hulya Koyuncu
Summary: In this study, natural diatomite and Mn-modified diatomite were found to be effective for the adsorption of Basic Blue 41 from aqueous solution at different temperatures. The Freundlich isotherm model showed better performance, with higher isotherm constants indicating favorable removal at higher temperatures. Economic analysis suggested that diatomite could be a cost-effective alternative to more expensive adsorbents for dye removal.
DESALINATION AND WATER TREATMENT
(2021)
Article
Chemistry, Physical
Tariq A. Altalhi, Mohamed M. Ibrahim, Gaber A. M. Mersal, M. H. H. Mahmoud, Tushar Kumeria, Mohamed G. El-Desouky, Ashraf A. El-Bindary, Mohamed A. El-Bindary
Summary: In this study, mango seeds activated carbon (MSAC) nanoparticles were prepared with high biocompatibility for potential use as drug carriers. The experimental results showed that the nanocomposite significantly enhanced the adsorption performance of the anti-cancer drug DOX, indicating its potential in drug delivery applications.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Polymer Science
Amina Abbaz, Sihem Arris, Gianluca Viscusi, Asma Ayat, Halima Aissaoui, Yasser Boumezough
Summary: Water pollution is a pressing issue that requires immediate attention. This study developed hydrogel beads made from sodium alginate and pomegranate fruit peels for the purpose of adsorbing Safranin O dye in aqueous solutions. The results showed that the synthesized beads had favorable adsorption properties, with maximum adsorption capacity reaching 30.769 mg/g at 293 K. The study also provided insights into the adsorption kinetics, concentration dependence, and thermodynamics of the dye adsorption process.
Article
Chemistry, Physical
Qing Ye, Gongming Qian, Lulu Liu, Fu Yang, Wei Liu
Summary: Hydroxyapatite (HAP) has excellent adsorption ability for Fe(III) and can effectively hinder the migration of Fe(III) under certain conditions. The transformation efficiency of Fe(III) is significantly influenced by the initial pH value and reaction temperature, and the adsorption kinetics of Fe(III) on HAP follows a pseudo second order kinetic model.
Article
Materials Science, Textiles
Bin Tang, Xi Lu, Jinfeng Wang, Hao Yu, Yanchao Zhu, Steven E. Atkinson, Xungai Wang
Summary: The gas adsorption properties of key natural fibers, wool and cotton, were investigated through time-resolved infrared spectroscopy monitoring the adsorption process of ammonia. The Langmuir isotherm model best described the adsorption process, with monolayer adsorption onto the fibers. The study also found differences in adsorption capacity and activation energy values between wool and cotton.
JOURNAL OF THE TEXTILE INSTITUTE
(2021)
Article
Engineering, Chemical
Murali Pujari, P. Rohinikumar, Sudharshan Reddy Manyam, Adarsh Kumar Arya
Summary: The effectiveness of low-cost fly ash geopolymer adsorbents synthesized from biomass fly ash in lead removal from aqueous solution was studied. The results showed that the synthesized adsorbent had high removal efficiency and uptake, and could be applied under different operating conditions.
CHEMICAL ENGINEERING & TECHNOLOGY
(2023)
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
Engineering, Environmental
Zahrasadat Mohammadi, Ahmad Rahbar Kelishami, Amir Ashrafi
Summary: Ni0.5Zn0.5Fe2O4 magnetic nanoparticles were successfully synthesized as an efficient adsorbent for diclofenac sodium removal, with small particle size and large surface area. The adsorbent could be efficiently separated from the solution through magnetic separation, and showed a high adsorption capacity of 52.91 mg/g for DF, surpassing many other recently studied adsorbents.
WATER SCIENCE AND TECHNOLOGY
(2021)
Article
Water Resources
Asha Singh, Sunil Kumar, Vishal Panghal
Summary: This study evaluated the adsorption of Cr6+ from aqueous solution using dead biomass of aquatic plants Salvinia molesta and Typha latifolia. Both adsorbents showed good results for Cr6+ removal under certain conditions, and Fourier transform infrared spectroscopy and scanning electron microscopy were used for characterization and analysis.
APPLIED WATER SCIENCE
(2021)
Article
Environmental Sciences
Ana Paula Nazar De Souza, Dalber R. Sanchez, Mariella Alzamora, Marcos Vinicius Colaco, Marcelo Augusto Vieira de Souza, Jefferson Santos De Gois, Jaqueline Dias Senra, Nakedia M. F. Carvalho
Summary: Contamination of water by toxic dyes is a serious environmental problem. In this study, an environmentally safe adsorbent composed of iron oxide nanoparticles and proanthocyanidins was prepared using a green synthesis method. The adsorbent showed excellent adsorption capacity for cationic dyes and could be reused for multiple cycles without loss of efficiency.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Abdullah Bayram, Emre Arkan, Mucahit Sutcu
Summary: This study compares the adsorption ability of clays and dead microorganisms against special toxic gases. Experimental investigations were conducted on kaolinite, metakaolinite, radiolarite, and diatomite for their adsorption kinetics to ammonia, ethylene, and carbon dioxide. Various analyses were performed for mineralogical and structural characterization of the materials. The results show that diatomite has the highest uptake efficiency among all materials, while metakaolinite has a lower response due to phase transformation. The adsorption behaviors are clarified with Langmuir isotherms, providing insights for using microorganisms as natural adsorbent materials in toxic gas environments.
Article
Environmental Sciences
Y. Liu, Y. Zhang, X. R. Sheng, N. Li, Q. W. Ping, M. H. Niu, P. Lu, J. Zhang
Summary: Slow-release materials using diatomite have excellent adsorption-release properties, effectively controlling the release of phoxim. The release process is controlled by the Fick diffusion mechanism.
JOURNAL OF ENVIRONMENTAL INFORMATICS
(2021)
Review
Environmental Sciences
Suyanne Angie Lunelli Bachmann, Tatiana Calvete, Liliana Amaral Feris
Summary: This paper provides a systematic review of caffeine removal by the adsorption process, showing that adsorption is the preferred method for caffeine removal with capacities ranging between 10 and 1000 mg g(-1), and the pseudo-second order and Langmuir isotherm models are the best for fitting experimental data. Future research should focus on mechanistic understanding of adsorption, development of new adsorbents, and consideration of other kinetic models and thermodynamic studies.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Physical
Gamil A. A. S. AlHazmi, Khlood G. AbouMelha, Mohamed A. El-Desouky, Ashraf El-Bindary
Summary: Zirconium metal organic framework (Zr-MOF) was synthesized by hydrothermal method, and various spectroscopic methods were used for sample characterization. The adsorption of doxorubicin (DOX) onto Zr-MOF was studied. The effects of DOX concentration, contact time, solution pH, and temperature were investigated. The surface properties of Zr-MOF were determined by scanning electron microscopy (SEM). The adsorption efficiency of Zr-MOF for DOX was found to be higher at pH 6. The equilibrium isotherms and kinetic data were described using different adsorption models. The docking interactions between DOX and lung cancer and liver cancer receptors were evaluated.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Environmental Sciences
S. Akyil Erenturk, S. Haciyakupoglu, B. F. Senkal
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
(2020)
Article
Chemistry, Analytical
Yusuf Azmi Akbas, Sabriye Yusan
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2020)
Article
Environmental Sciences
U. Hicsonmez, S. Akyil Erenturk, A. Ugur Gorgun, M. A. A. Aslani
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
(2020)
Article
Environmental Sciences
Yusuf Azmi Akbas, Sabriye Yusan, Senol Sert, Sule Aytas
Summary: In this study, magnetite and magnetic olive pomace nanocomposite were prepared by a partial reduction co-precipitation method for the removal of Ce3+ ions from aqueous solution. Various parameters affecting sorption efficiency were investigated, showing high sorption capacities for Ce(III) ions. These materials were found to be effective and sustainable adsorbents for cerium ion removal.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Analytical
Abdullah Akdogan, Aslihan Arslan Kartal, Cem Gok
Summary: This study utilizes Pisum sativum as a magnetic biocomposite biosorbent for the removal of lead ions from aqueous solutions. The properties and binding sites of the material are evaluated using instrumental analysis, and the optimization of the biosorption procedure is done through factorial design. The study also investigates the analytical performance, application, reusability, and stability of the biosorbent. The results highlight the importance of using Pisum sativum as a natural renewable resource for water treatment and reducing the adverse effects of lead contamination.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Chemical
Busra Prill, Sabriye Yusan
Summary: The study achieved green synthesis and characterization of starch-functionalized magnetic nanoparticles, showing the impact of different starch concentrations on the magnetic nanocomposites. Various analytical techniques were used for characterization and comparison of the synthesized products.
PARTICULATE SCIENCE AND TECHNOLOGY
(2022)
Article
Polymer Science
Yusuf Ozcan, Dicle Erden Gonenmis, Esranur Kizilhan, Cem Gok
Summary: This study aimed to produce high porous and non-toxic hydrogel scaffolds using chitosan, alginate, and diatom. The scaffolds were examined for density, porosity, swelling tests, as well as morphologic, chemical, and cytotoxic analysis. The results showed that the scaffolds have potential in the field of tissue engineering.
Article
Engineering, Environmental
Busra Prill, Umitcan Sedir, Sabriye Yusan, Ozge Elmastas Gultekin
Summary: The purpose of this research was to fabricate starch-based magnetic nanobiocomposites and examine the effects of synthesis parameters on the products. The characterization of the materials was conducted using various techniques, and their performance in removing Sr(II) ions from aqueous solutions was investigated. A full factorial experimental design was used to study the parameters affecting biosorption, and optimal conditions were determined through regression analysis. The composition and chemical state of the nanobiocomposites were analyzed using XPS, and adsorption thermodynamics were calculated.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Article
Chemistry, Analytical
P. Deshmukh, S. K. Sar, N. Smjecanin, M. Nuhanovic, R. Lalwani
Summary: In this study, magnetically modified waste bark from the Aegle marmelos tree was used as a biosorbent for U(VI) removal from aqueous solution using a green synthesis method. The biosorbent was characterized and optimal process parameters were determined. The results showed a high removal efficiency of 91.6% for U(VI) under the optimum conditions. Thermodynamic analysis indicated that the adsorption process was spontaneous at the optimal temperature.
Article
Chemistry, Analytical
N. Verma, S. K. Sar, S. Yusan
Summary: The sorption of thorium onto Pongamia Pinnata leaves was investigated, and it was found that these leaves can effectively remove Th(IV) ions from monazite sand at a low cost and without any treatment.
Article
Chemistry, Inorganic & Nuclear
Umit H. Kaynar, I. . Gozde Kaptanoglu, Sermin Cam-Kaynar, Onur Ugurlu, Sabriye Yusan, Sule Aytas, A. Y. Madkhli, N. Can
Summary: This study aims to investigate the adsorption properties of nano Ca3Y2B4O12 (CYBO) material synthesized by the sol-gel combustion method for the adsorption of Thorium (IV) from an aqueous medium. The effects of pH, Th (IV) concentration, amount of adsorbent, and temperature on adsorption efficiency were tested. The best conditions were determined using Response Surface Methodology (RSM) and Artificial Neural Network (ANN), with adsorption capacities of 134.62 mg/g and 125.12 mg/g, respectively.
APPLIED RADIATION AND ISOTOPES
(2023)
Article
Chemistry, Inorganic & Nuclear
Nildeniz Adman, Sabriye Yusan
Summary: In this study, graphene oxide and aginate were used to synthesize nanobiocomposites for the adsorption of Th (IV) ions from aqueous solutions. The materials were characterized using various techniques, and the adsorption efficiency was investigated under different conditions. The results showed significant effects of concentration, time, and temperature on the adsorption process.
Article
Environmental Sciences
Yaole Huang, Wangfeng Wen, Juan Liu, Xiaoliang Liang, Wenhuan Yuan, Qi'en Ouyang, Siyu Liu, Cem Gok, Jin Wang, Gang Song
Summary: Rare earth element processing activities are often associated with high levels of natural radioactivity and potentially toxic metal distribution in the surrounding environment. The specific activities of radionuclides in the soil samples were found to be significantly higher than worldwide soil averages, with some samples exceeding safety limits. Remediation efforts may be necessary to protect ecological and human health post-decommissioning of the processing plant.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Chemistry, Analytical
Sabriye Yusan, Sule Aytas, Senol Sert, Oguz Akpolat, Ozge Elmastas Gultekin
Summary: In this study, magnetic (Fe3O4) nanobiocomposite were synthesized using pectin biopolymer as a stabilizer by a co-precipitation method. The nanobiocomposites were characterized by several methods. The nanobiocomposite exhibited a particle size of 5.76 nm and a surface area of 94.651 m(2)/g. TEM and SEM results showed that the spherical nanoparticles were well dispersed in the polymer matrix. The optimal adsorption parameters were determined, and the main effects on Sr(II) removal were found to be pH and initial concentration. The maximum sorption capacities according to D-R and Langmuir isotherms were determined as 0.018 mol/g and 26.455 mg/g, respectively.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Ikbal Gozde Kaptanoglu, Sabriye Yusan
Summary: Graphene oxide (GO) and zinc oxide (ZnO) were synthesized using different methods and their adsorption potentials for Th(IV) ions were compared. Factors affecting the adsorption process, including kinetics, isotherms, and thermodynamic properties, were studied. The results showed that GO-ZnO had a higher adsorption capacity for Th(IV) removal than GO, indicating the effectiveness of decorating GO with ZnO nanoparticles.
Article
Chemistry, Physical
Nadine J. Kanik, Artur Kuligiewicz, Jeffrey T. Cullen
Summary: This study examined the effects of different pre-treatments on the structural H-isotope composition of clay minerals. The results showed that different pre-treatments had varied impacts on different clay minerals, and the choice of pre-treatment should be based on the specific properties and mineralogy of the samples.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Lorenzo Lisuzzo, Giuseppe Cavallaro, Stefana Milioto, Giuseppe Lazzara
Summary: This study proposes Pickering emulsions based on wax and halloysite clay nanotubes for coating silk sutures to increase their loading capacity towards eosin. The presence of halloysite/wax microspheres on the surface of silk sutures has also been explored for controlled release of hydrophobic drugs. The influence of the coating on the thermal and mechanical properties of the sutures has been studied using various techniques. In conclusion, the wax/halloysite Pickering emulsions can successfully generate hydrophobic microdomains on the surface of silk sutures, leading to enhanced flexibility and improved loading capacity towards eosin.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Bruna F. Alves, Rita C. P. Nunes, Luiz C. Bertolino, Elizabete F. Lucas
Summary: Operational problems in the oil industry caused by the precipitation of paraffins can be prevented by using polymeric additives. This article evaluates the use of polymeric nanocomposites as pour point reducers in different types of crude oil and finds that they are more efficient than pure poly(ethylene-covinyl acetate) (EVA) in reducing the pour point. The nanocomposites also modify the wax crystals and reduce the viscosity of the oil samples.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
K. A. Daniels, C. C. Graham, A. C. Wiseall, J. F. Harrington, P. Sellin
Summary: Geological storage with clay buffer is widely preferred for removing hazardous radioactive waste. The impact of fluid salinity and void space on the swelling behavior of barrier bentonites was examined through experiments. The findings suggest that clay swelling is suppressed at higher salinities, which affects the void-filling process.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
N. Werling, A. Kuligiewicz, A. Steudel, R. Schuhmann, F. Dehn, K. Emmerich
Summary: Thermal treatment of clay minerals can be used to produce building materials and environmentally friendly binders. This process involves dehydration, dehydroxylation, breakdown of structure, and recrystallization of high temperature phases. Rehydration and rehydroxylation are important factors to consider for geopolymers and SCM.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Xuan Wang, Hao Ding, Zhuoqun Xu, Jianmeng Zhang, Yanbin Yao
Summary: Rutile nano-TiO2 was loaded onto the surface of sericite to prepare sericite-rutile composite particles, which were then modified with HDTMS and sprayed onto the substrates to form sericite-rutile/HDTMS composite coatings with UV shielding and superhydrophobic self-cleaning properties. The coating exhibited good UV shielding rate and remained superhydrophobic after UV irradiation. The hierarchical structure of the sericite-rutile composite and the low surface energy of HDTMS contributed to the superhydrophobicity and UV shielding effect of the coating.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Kailang Sun, Taojun Zhang, Jie Zhou, Yonghong Liu, Minfeng Zeng, Zhen Yang, Ruokun Feng, Xiaorong Ren, Peng Zhang, Baoyi Wang, Xingzhong Cao
Summary: Chitosan-Pd0 nano particles encapsulated in Al, Co-pillared montmorillonite nanocomposites were successfully synthesized using a facile one-pot heat treatment method. The Al, Co pillaring effectively expanded the surface area and generated numerous mesopores in the interlayer space of the MMt. The resultant nanocomposite exhibited similar high comprehensive catalytic performances as the one prepared by the regular divided-multistep method. The encapsulation of CS chains and doping of Co in the Al pillaring also contributed to the improved catalytic performance.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Nathalie Fagel, Isabel Israde-Alcantara, Reza Safaierad, Marttiina Rantala, Sabine Schmidt, Gilles Lepoint, Pierre Pellenard, Nadine Mattielli, Sarah Metcalfe
Summary: Environmental conditions significantly influence clay minerals, and studying clay sediments in tropical lakes can provide valuable insights into past environmental conditions. In this study, multiproxy records from sediment cores of three crater lakes in central Mexico were analyzed. The results showed that disordered kaolinite, formed through hydrolysis and hydrothermal alteration, was the predominant mineral in the sediments. The abundance of kaolinite varied in relation to organic carbon and organic matter-related elements, and showed opposite trends with lithogenic elements. Geochemical data suggested that the increase in kaolinite abundance is linked to the formation of organo-mineral aggregates and lake level changes in closed basins.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
M. J. Martin-Alfonso, A. Mejia, F. J. Martinez-Boza, P. Partal
Summary: The drilling industry is facing new challenges to develop eco-friendlier drilling fluids. Organic modified sepiolite dispersed in oil can be an excellent additive with suitable rheological properties. This study investigated the effect of alkyl ammonium modifiers on the microstructure and rheological properties of sepiolite-vegetable oil dispersions under high-temperature and high-pressure conditions.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Weiquan Zhan, Siyuan Yang, Shenxu Bao, Liuyi Ren, Cheng Liu
Summary: The interaction between talc and the depressor CMC was investigated through molecular dynamics simulation and density functional theory calculation. It was found that CMC showed stronger adsorption on the edge plane of talc due to enhanced interactions with polar groups and water molecules. The study also revealed specific interactions between H atoms in CMC and O atoms in the edge plane, as well as between O atoms in CMC and Si, Mg atoms in the edge plane. Hydration shells on the basal and edge planes of talc were examined to explain the phenomenon.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Pierre Dramou, Yiyang Sun, Xu Ni, Fangqi Wang, Hua He
Summary: In this study, a magnetic nanocomposite was prepared and used for the separation of rutin from real samples through magnetic solid phase extraction (MSPE). The nanocomposite exhibited high specific surface area, chemical and thermal stability, water solubility, and easy separation in aqueous solution. Characterization and experiments confirmed the successful synthesis and efficient enrichment ability of the nanocomposite.
APPLIED CLAY SCIENCE
(2024)