Article
Engineering, Environmental
A. Hashem, M. F. Nasr, A. J. Fletcher, Latifa A. Mohamed
Summary: An aminated acrylic fiber waste was utilized as an adsorbent material for the removal of Cd(II) ions from aqueous solution, showing significant potential for Cd(II) ion adsorption with uptake promoted by high active site density. The Langmuir isotherm model most appropriately described the experimental data obtained, indicating mono layer adsorption occurs, while kinetic analysis revealed pseudo -second-order behavior is involved.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2021)
Article
Environmental Sciences
Agnieszka Tomczyk, Bartosz Kondracki, Katarzyna Szewczuk-Karpisz
Summary: Biochar is a carbonaceous material produced through the pyrolysis of biomass, commonly used in water purification, fuel production, soil amendment, and other areas. However, many types of biochar have limited adsorption capacity due to insufficient textural parameters and poor surface chemistry. To address this issue, innovative chemical methods have been developed and described in the literature. This review provides a detailed presentation of these methods and evaluates their effectiveness in enhancing the textural parameters, surface chemistry, and adsorption capacity of biochar.
Article
Materials Science, Composites
Qingfeng Tian, Chunhua Zhang, Yuan Tang, Yalan Liu, Liyong Niu, Tao Ding, Xiaohong Li, Zhijun Zhang
Summary: By adjusting the modifier dosage, nano-silica with enhanced compatibility and dispersibility in rubber matrix were successfully prepared, leading to improved mechanical properties and abrasion resistance of the composite materials.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Environmental
A. Hashem, Latifa A. Mohamed, A. J. Fletcher, M. A. Sanousy, H. Younis, H. Mauof
Summary: The modified microcrystalline cellulose (TMCC) showed high affinity for Hg(II) ions from aqueous media, with a maximum adsorption capacity of 1140 mg/g under optimized conditions. The process involving chemisorption was best described by a pseudo-second order kinetic model. The results suggest potential application of TMCC in water treatment systems.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2021)
Article
Chemistry, Physical
Dustin Quinones, Kai Braun, Alfred Meixner, Thomas Chasse
Summary: Coated stainless steel surfaces with silane compound coupling agent have been widely used in industrial applications. Optimization of VTMS adsorption was achieved through various treatments, with the key role of NaOH pretreatment in bonding VTMS to the stainless steel surface highlighted.
APPLIED SURFACE SCIENCE
(2022)
Review
Biochemistry & Molecular Biology
Lisa Patricia Elisabeth Bader, Harm-Anton Klok
Summary: Bacteria can serve as excellent carriers for nano- and micro-sized particles, and immobilizing the particles on the bacterial cell surface can enable precise drug delivery with enhanced selectivity and reduced side effects.
MACROMOLECULAR BIOSCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Alexandra Waskow, Alan Howling, Ivo Furno
Summary: Research on surface characterization of plasma-treated seeds has advanced significantly in the past decade, with most studies using SEM and contact angle goniometry. However, few studies focus on the chemical modifications to the seed coat post-plasma treatment. This study summarizes the methods used for analyzing plasma-treated seeds and compares the relative advantages and limitations of these surface analysis techniques through experimentation.
FRONTIERS IN MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Abdelhak Jrad, Manel Naouai, Souad Ammar, Najoua Turki-Kamoun
Summary: Iron-doped zinc sulfide thin films were synthesized by chemical bath deposition with different Fe dopant concentrations. XRF analysis showed the doped films to be zinc rich and sulfur poor, and the crystalline quality and optical performance were found to be related to the Fe dopant concentration, with the sample doped 6 at.-% Fe showing the best performance. Photoluminescence intensity was also found to be very sensitive to the rise of iron concentration.
Article
Engineering, Environmental
Jismy Antony, V Meera, Vinod P. Raphael, P. Vinod
Summary: In this study, CaCO3 was used as a modifier for nano zero-valent iron (nZVI) surface to prevent rapid aggregation and effectively utilized for iron remediation from aqueous solution. The surface chemistry and morphology of CaCO3-nZVI were characterized before and after treatment of contaminant iron solution, and the mechanisms of surface modification and iron remediation were well depicted. The experimental results showed that CaCO3-nZVI had a high removal capacity for iron and could be reused effectively.
JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE AND ENGINEERING
(2022)
Article
Crystallography
Nada S. Al-Kadhi, Ghadah M. Al-Senani, Rasmiah S. Almufarij, Omar H. Abd-Elkader, Nasrallah M. Deraz
Summary: This study aimed to develop a self-combustion method for preparing copper and cobalt ferrites using dry leaves of the Corchorus olitorius plant. The fabrication of CuFe2O4 and CoFe2O4 with spinel-type structures and the Fd3m space group was confirmed through XRD and FTIR investigations. The materials showed two stages of thermal behavior, with the first stage indicating the formation of reacting oxides and the second stage indicating ferrite growth. Surface morphological analysis displayed the formation of uniform and nanosized particles, with the samples containing CoFe2O4 showing superior surface properties compared to those without CuFe2O4. Magnetic characteristics evaluated using VSM showed that cobalt ferrites had higher magnetization, squareness, and coercivity compared to copper ferrites.
Article
Chemistry, Physical
S. Simon, S. Cavalu, D. Eniu, V. Simon
Summary: The study focused on sol-gel derived particles functionalized with type I collagen, with the addition of Fe2O3 for hyperthermia and Dy2O3 for internal radiation therapy. The results showed protein anchoring on the particle surface in a few nanometers thin layer, with some relative changes in protein secondary structure. The secondary structure of collagen mainly consisted of α-helices after interface processes with the particle surface.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Energy & Fuels
Duygu Kocaefe, Julie Bureau, Armita Rastegari, Karthikeyan Rajan, Yasar Kocaefe
Summary: This study aims to investigate the effect of modifying a pitch containing a high amount of primary quinoline insolubles (HQI pitch) on anode quality. The results showed that adding the appropriate percentage of additive (2%) and using high-quality pitch (16%) improved anode properties. The modified HQI pitch also exhibited better wetting ability on coke.
Article
Physics, Condensed Matter
Joy Mukherjee, Dipak Bhowmik, Gourab Bhattacharyya, Biswarup Satpati, Prasanta Karmakar
Summary: We report the formation of spatially varying chemical phases on Si (100) surface induced by mixed ion beam bombardment. The combination of carbon, oxygen, and nitrogen ions leads to well-defined ripple development and periodic variation of chemical phases. The chemical changes on the Si surface after bombardment are analyzed using X-ray photoelectron spectroscopy, and the spatially resolved periodic variation of chemical phases is confirmed by electron energy loss spectroscopy. The thickness of the ion modified amorphous layer is estimated using Monte Carlo simulation and is consistent with the measurements from cross-sectional transmission electron microscopy. The formation of periodic nanoscale ripples with multiple chemical phases is explained by chemical instability, local ion flux variation, and difference in sputtering yield. The potential applications of such nano materials are also discussed.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2022)
Article
Materials Science, Multidisciplinary
Mikhail Lebedev, Peter A. Dementev, Tatiana Lvova, Vladimir L. Berkovits
Summary: The study investigates the surface electric field changes in GaP(0 0 1) treated with aqueous and alcoholic sulfide solutions using reflectance anisotropy spectroscopy and synchrotron-radiation X-ray photoelectron spectroscopy. Treatment with a sulfide solution reduces the surface electric field on the n-GaP(0 0 1) surface, with the degree of reduction depending on the composition of the sulfide solution. Passivation with ammonium sulfide in 2-propyl alcohol almost eliminates the total surface electric field, while passivation with aqueous ammonium sulfide solution shows a lesser reduction. Conversely, sulfide treatment of the p-GaP(0 0 1) surface dramatically enhances the surface electric field, regardless of the sulfide solution composition. These changes in the surface electric field are likely associated with the modification of dipole moments in the passivating layer.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Engineering, Multidisciplinary
Gerd Wuebbeler, Manuel Marschall, Eckart Ruehl, Bernd Kaestner, Clemens Elster
Summary: Nano-Fourier-transform infrared spectroscopy (nano-FTIR) combines infrared spectroscopy with scanning probe microscopy (SPM) techniques and enables spectroscopic imaging of molecular and electronic properties of matter at nanometer spatial resolution. This paper proposes a compressive chemical mapping approach for undersampled nano-FTIR data that utilizes the sparsity of additional signals in the spectral domain.
MEASUREMENT SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Simona Lupinkova, Marketa Kaimlova, Martin Kormunda, Zdenka Kolska
Summary: Antimicrobial materials with immobilized sulfur particles were prepared and characterized for their antibacterial properties. Samples treated with UV radiation and grafted with sulfur particles exhibited antibacterial effects againstStaphylococcus epidermidisandEscherichia colibacteria strains.
SURFACE AND INTERFACE ANALYSIS
(2021)
Article
Biochemistry & Molecular Biology
Jakub Siegel, Marketa Kaimlova, Barbora Vyhnalkova, Andrii Trelin, Oleksiy Lyutakov, Petr Slepicka, Vaclav Svorcik, Martin Vesely, Barbora Vokata, Petr Malinsky, Miroslav Slouf, Pavel Hasal, Tomas Hubacek
Summary: Properties of materials at the nanoscale provide new methodologies for engineering prospective materials for high-end applications. The preparation of composite materials with a high content of active components on their surface is a current challenge in materials engineering. A general approach of laser-induced optomechanical processing of silver colloids is introduced for preparing polymer surfaces enriched with silver nanoparticles.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Chemistry, Applied
Kai Yang, Mohanapriya Venkataraman, Jana Karpiskova, Yuji Suzuki, Sana Ullah, Ick-Soo Kim, Jiri Militky, Yuanfeng Wang, Tao Yang, Jakub Wiener, Guocheng Zhu, Juming Yao
Summary: Embedding of functional materials into aerogel powders was achieved via the filtration method. The aerogel had an impact on the molecular structure of the embedded polyethylene glycol (PEG). The crystallinity of PEG was reduced in aerogel powders, leading to a decrease in decomposed temperature and thermal capacity.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Petr Slepicka, Silvie Rimpelova, Nikola Slepickova Kasalkova, Dominik Fajstavr, Petr Sajdl, Zdenka Kolska, Vaclav Svorcik
Summary: This study focuses on the surface modification of polytetrafluoroethylene (PTFE) and tetrafluoroethylene-perfluoro(alkoxy vinyl ether) (PFA) materials through plasma treatment and silver nanoclusters deposition, showing significant antibacterial effects against various bacterial strains. The research demonstrates that under specific treatment conditions, the materials can effectively inhibit the growth of bacteria such as S. aureus, Proteus sp., and E. coli.
Article
Chemistry, Physical
Klara Fajstavrova, Silvie Rimpelova, Dominik Fajstavr, Vaclav Svorcik, Petr Slepicka
Summary: The development of new biocompatible polymer substrates using plasma treatment of FEP combined with improved phase separation technique has led to the successful preparation of a honeycomb-like pattern from polystyrene with enhanced cell viability, adhesion, and proliferation for primary fibroblasts and osteoblasts.
Article
Materials Science, Multidisciplinary
Oleg Semyonov, Somboon Chaemchuen, Alexey Ivanov, Francis Verpoort, Zdenka Kolska, Maxim Syrtanov, Vaclav Svorcik, Mekhman S. Yusubov, Oleksiy Lyutakov, Olga Guselnikova, Pavel S. Postnikov
Summary: This study presents a comprehensive approach using PET bottle waste and UiO-66 framework technology to remove toxic insecticides from water, with technical advantages including sustainable and inexpensive preparation, high adsorption capacity and rate, stability, and recyclability.
APPLIED MATERIALS TODAY
(2021)
Article
Biophysics
Olga Guselnikova, Hyunsoo Lim, Jongbeom Na, Miharu Eguchi, Hyun-Jong Kim, Roman Elashnikov, Pavel Postnikov, Vaclav Svorcik, Oleg Semyonov, Elena Miliutina, Oleksiy Lyutakov, Yusuke Yamauchi
Summary: A new family of hierarchical porous hybrid materials was introduced for ultrasensitive and selective sensing of enantiomeric drugs in complex biosamples using chiral surface-enhanced Raman spectroscopy (SERS). The hybrid hierarchical porous substrates showed extremely low limit of detection for pseudoephedrine in undiluted blood plasma, with dual enhancement mechanisms and chemical recognition. The combination of mesoporous Au and microporous AlaZnCl (HMOF) led to significant improvements in SERS signals for sensing applications.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Chemistry, Physical
David Tetour, Tomas Paska, Veronika Makova, Barbora Nikendey Holubova, Jana Karpiskova, Michal Rezanka, Jiri Brus, Jana Hodacova
Summary: Two hybrid organosilica materials containing bis-cinchonine-phthalazine bridging organic unit were synthesized and used as heterogenized ligands in catalysis of enantioselective Sharpless alkene dihydroxylation. The nanostructured material exhibited higher enantioselectivities than the bulk material and could be used at least five times without loss of enantioselectivity.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Applied
Kai Yang, Qingyan Peng, Mohanapriya Venkataraman, Jana Novotna, Jana Karpiskova, Jana Mullerova, Jakub Wiener, Martina Vikova, Guocheng Zhu, Juming Yao, Jiri Militky
Summary: In this study, PTFE-coated viscose fabrics were prepared using electrospraying technology and stabilized through sintering at different temperatures. Increasing sintering temperature led to denser PTFE coating and reduced breathability, with stable hydrophobicity achieved at 190 degrees C or higher.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Polymer Science
Monika Vostinakova, Simona Lupinkova, Petr Rysanek, Jaroslav Stejskal, Zdenka Kolska
Summary: A novel composite material, polyaniline/aramid, was synthesized for the purpose of capturing carbon dioxide. The polyaniline was prepared via oxidative polymerization of aniline and used to modify the aramid surface. The composite showed a significantly increased carbon dioxide capture capacity compared to pristine aramid. This new material has the potential to be used as an effective adsorbent for carbon dioxide and for applications based on its adsorption properties.
POLYMER INTERNATIONAL
(2023)
Article
Chemistry, Physical
Olga Guselnikova, Pavel Postnikov, Jiri Kosina, Zdenla Kolska, Andrii Trelin, Vaclav Svorcik, Oleksiy Lyutakov
Summary: A hybrid plasmonic catalyst is proposed for the conversion of CO2 to carbonates at quantitative yields under ambient conditions. The catalyst, composed of gold nanoparticles modified by TBD, utilizes plasmonic triggering to drive the final stage of the reaction.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Olga Guselnikova, Gerard Audran, Jean-Patrick Joly, Andrii Trelin, Evgeny Tretyakov, Vaclav Svorcik, Oleksiy Lyutakov, Sylvain R. A. Marque, Pavel Postnikov
Summary: The study investigates the impact of plasmonic effects on reaction kinetics using alkoxyamines as organic probes, emphasizing the dependence of kinetic parameters on the structure of organic molecules.
Article
Materials Science, Multidisciplinary
Jaroslav Stejskal, Miroslav Kohl, Miroslava Trchova, Zdenka Kolska, Michal Pekarek, Ivo Krivka, Jan Prokes
Summary: New types of materials were produced by heating conducting polymer, polypyrrole, to elevated temperatures, resulting in various morphologies like globules, nanofibers, and nanotubes. These materials maintained their morphological features after exposure to temperatures up to 700 degrees C in an argon atmosphere. The specific surface areas increased with morphological changes, but were not significantly affected by the exposition temperature.
MATERIALS ADVANCES
(2021)
Article
Chemistry, Multidisciplinary
Hazem Idriss, Roman Elashnikov, Olga Guselnikova, Pavel Postnikov, Zdenka Kolska, Oleksiy Lyutakov, Vaclav Svorcik
Summary: This work describes the preparation of fibers array with electric field switchable wettability using the piezoelectric properties of PVDF and the chemical reactivity of PMMA. It was found that by varying the orientation of the electric field and using different substrates with different conductivity, the shape of the deionized water drop can be controlled effectively. Additionally, the polarity of water can be shifted by dissolving NaCl salt in different concentrations.
Article
Materials Science, Multidisciplinary
Deyong Zheng, Huihui Jin, Yucong Liao, Pengxia Ji
Summary: In this study, a highly stable and efficient catalyst, fluorine-doped Co3O4 (F-Co3O4), was developed for hydrogen production by water electrolysis. The F-Co3O4 catalyst exhibited a remarkable reduction in overpotential and demonstrated excellent stability for over 100 hours.
Article
Materials Science, Multidisciplinary
Ziwen Lv, Jintao Wang, Fengyi Wang, Jianqiang Wang, Fuquan Li, Hongtao Chen
Summary: Adding Cu6Sn5 nano particles can effectively inhibit the overgrowth of intermetallic compounds at the interfaces of solder joints in electronic devices, providing a solution to this issue. A new growth mechanism of intermetallic compounds at the interfaces was identified.
Article
Materials Science, Multidisciplinary
Jun Wang, Jiawei Chen, Wanru Liao, Fangyang Liu, Min Liu, Liangxing Jiang
Summary: A BiOI/AgI/Ag plasmonic heterostructure photocathode was successfully designed through electrodeposition, ion-exchange, and illumination methods. This photocathode exhibits superior performance in photoelectrochemical water splitting.
Article
Materials Science, Multidisciplinary
Xiaoxiao Liu, Xianxian Zhou, Xiaotao Ma, Qinbo Yuan, Shibin Liu
Summary: In this study, the authors propose a method to accelerate the reaction of polysulfides in lithium-sulfur batteries using a Ni@OC Mott-Schottky heterojunction as a catalyst. The experimental results demonstrate that the charge redistribution at the Ni@OC interface accelerates electron transfer and enhances catalytic activity, leading to improved reaction kinetics and battery performance.
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Materials Science, Multidisciplinary
Lingchang Wang, Qihang Yang, Huzhen Li, Ming Wei, Qian Wang, Zhenzhong Hu, Mengmeng Zhen
Summary: Bronze titanium dioxide (TiO2(B)) is a promising anode material for lithium-ion batteries due to its high specific capacity. However, its practical applications are hindered by poor conductivity and limited electrochemical kinetics. In this study, TiO2(B)-carbon nanosheets heterostructures are synthesized to enhance the cycling performance and rate capability of TiO2(B).
Article
Materials Science, Multidisciplinary
Atul Thakur, Ritesh Verma, Ankush Chauhan, Fayu Wan, Preeti Thakur
Summary: In this study, BaFe12O19 and BaFe12O19: Epoxy (50:50) nanocomposites were synthesized using the co-precipitation method. The structural information and material properties, such as crystallite size and electrical conductivity, were characterized by XRD, FESEM, EDX, and TEM techniques.
Article
Materials Science, Multidisciplinary
Jingyu Wu, Xinyan Ma, Yong Yang
Summary: A well-defined CoS2@NC(CS-500) hierarchical binder-free catalyst cathode is constructed through in-situ grown of ZIF-67 on carbon cloth and high-temperature carbonization. The cathode shows excellent reaction kinetics and electrochemical performance, providing inspiration for developing advanced Li-CO2 battery catalysts.
Article
Materials Science, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Kirill N. Boldyrev, Dina Deyneko, Erzhena T. Pavlova, Bogdan I. Lazoryak
Summary: This study explores the impact of synthesis method and composition on the structure and luminescence properties of K5Eu1-xHox(MoO4)4 with the palmierite-type matrix. The co-doping of Eu3+ and Ho3+ ions plays a critical role in manipulating charge transfer and luminescence efficiency in the visible and infrared regions.
Article
Materials Science, Multidisciplinary
Jian Wang, Yeting Tao, Jingsheng Wang, Youtian Tao
Summary: A new electron-transport material iTPyBI-CN is developed through non-catalytic C-N coupling reaction. It exhibits better electroluminescence efficiency in organic light-emitting diodes compared to the commercial material TPBI, due to its twisted geometry and higher energy levels.
Article
Materials Science, Multidisciplinary
Tao Zhu, Feng Huang, Shuo Li, Yang Zhou
Summary: This article combines XRD analysis and microscopic structural observation to investigate the changes in limestone after high-temperature treatment. It finds that 500 degrees C is the critical temperature for crystalline and spatial arrangement changes in limestone, and the thermal conductivity, specific heat capacity, and heat storage coefficient gradually decrease after thermal treatment.
Article
Materials Science, Multidisciplinary
Muhammad Haekal Habibie, Fransiska Sri Herwahyu Krismastuti, Abdi Wira Septama, Faiza Maryani, Vivi Fauzia
Summary: This study focuses on the synthesis of zinc oxide nanostructure from zinc recovered from galvanization ash and highlights its potential as a sustainable source of zinc and as an antibacterial agent.
Article
Materials Science, Multidisciplinary
Jingyi Li, Yixin Xing, Wei Gu, Shousi Lu
Summary: In this study, PC@CaP microparticles were fabricated using biomimetic mineralization. The results showed that under environmental stress, PC@CaP exhibited improved stability and antioxidative activity, indicating its potential use in high-added value fields.
Article
Materials Science, Multidisciplinary
Yan Liu, Shunyou Chen
Summary: In this study, TNTs were used as a drug carrier and modified with ZIF-8 and silk fibroin to obtain a new drug loading platform. The results showed that this drug-loaded platform had a good drug release effect in vitro and could promote cell proliferation and osteogenic differentiation.
Article
Materials Science, Multidisciplinary
Chunhui Zhu, Wentao Wang, Qing Zhen, Xinning Huang, Shixin Li, Shaochang Wang, Xiaoping Ma, Xiaoxia Liu, Yalong Jiao, Kai Sun, Zhuangzhi Li, Huaixin Yang, Jianqi Li
Summary: A type of stacking fault is revealed in e-InSe crystal, which is associated with a small stacking-fault energy and shows exceptional plasticity.
