Article
Chemistry, Analytical
Bushra Zafar, Jack Campbell, Jake Cooke, Andre G. Skirtach, Dmitry Volodkin
Summary: This article reviews the progress in modifying solid surfaces with vaterite CaCO3 crystals, focusing on the mechanism of vaterite growth initiated by various substances mentioned above, as well as discussing the applications of such modified surfaces.
Review
Metallurgy & Metallurgical Engineering
Chun-quan Li, Chao Liang, Zhen-ming Chen, Yong-hao Di, Shui-lin Zheng, Shi Wei, Zhi-ming Sun
Summary: Calcium carbonate is widely used as a filler in polymer matrices due to its excellent properties, but surface modification is necessary to achieve good filling effects. Surface modification of calcium carbonate can enhance dispersion and compatibility within composites, improving the overall performance.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2021)
Article
Materials Science, Multidisciplinary
Ekaterina Chudinova, Andrey Koptyug, Yulia Mukhortova, Artyom Pryadko, Anastasiya Volkova, Alexey Ivanov, Evgenii Plotnikov, Yelena Khan, Matthias Epple, Viktoriya Sokolova, Oleg Prymak, Timothy Douglas, Roman Surmenev, Maria Surmeneva
Summary: This study proposed the use of polyelectrolyte microcapsules formed by layer-by-layer synthesis loaded with porous calcium carbonate microparticles and anti-inflammatory drug dexamethasone to functionalize implant surfaces for controlled drug release. The morphology and drug release of the microcapsules were characterized by scanning electron microscopy and UV spectroscopy. HPLC analysis confirmed drug release efficiency, and cell culture experiments showed the non-toxic effect of DEX on cells.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Environmental Sciences
Nemanja Barac, Ernest Barcelo, Dusica Stojanovic, Stoja Milovanovic, Petar Uskokovic, Patrick Gane, Katarina Dimic-Misic, Monireh Imani, Djordje Janackovic
Summary: The study investigated the effects of two modifications (supercritical CO2 exposure and coupling agent AMEO silane) on fine-ground calcium carbonate material, revealing that increased surface area enhances reactivity of NO2 with GCC, but the presence of silane inhibits further reactions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Polymer Science
Khansinee Longkaew, Alain Gibaud, Wasan Tessanan, Philippe Daniel, Pranee Phinyocheep
Summary: This study investigates the synthesis and surface treatment of spherical CaCO3 as a reinforcing filler in natural rubber composites. The results show that the treated CaCO3 improves the tensile strength of the composites, with the optimal filler loading being 20 phr.
Article
Construction & Building Technology
Rakibul I. Khan, Warda Ashraf, Jan Olek
Summary: This study investigated the application of amino acids in controlling CaCO3 crystallization in carbonation cured wollastonite composites. The use of amino acids resulted in the formation of stable ACC, vaterite, and aragonite, as well as enhanced flexural and compressive strength of the composites. These improvements were attributed to the reduced critical pore size and the formation of organic-inorganic hybrid phases in the matrix.
CEMENT AND CONCRETE RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Nadine Bou Orm, Thomas Grea, Marwa Hamandi, Alexandre Lambert, Florent Lafay, Emmanuelle Vulliet, Stephane Daniele
Summary: This study focuses on the preparation of innovative nanocomposite materials based on surface modification of commercial nano-ZrO2 optimized from Bronsted acid-base surface reactions. The resulting nanohybrids were characterized thoroughly and demonstrated high specific surface area and complex porosity networks suitable for adsorption of a mixture of 16 polycyclic aromatic hydrocarbons (PAHs). The correlation between the nature of the substituent and the adsorption process parameters was found, with an increase in PAH adsorption rates observed with increased phosphonic acid loading.
Review
Environmental Sciences
Xin Sheng, Shengnan Chen, Zhiwei Zhao, Li Li, Yuanpeng Zou, Hui Shi, Penghui Shao, Liming Yang, Jingsheng Wu, Yaofu Tan, Xinyuan Lai, Xubiao Luo, Fuyi Cui
Summary: Adsorption technology is widely used in controlling environmental pollution and plays a crucial role in the sustainable development of modern society. Calcium carbonate (CaCO3) with its flexible pore design and functional group modification is a suitable candidate for adsorption due to its high capacity and targeting requirements. This paper comprehensively reviews the progress in the controlled synthesis and surface modification of CaCO3, as well as its applications in adsorbing contaminants from water and air. It also examines the structure-effect relationship between CaCO3 adsorbents and contaminants, and discusses the prospects and challenges of calcium carbonate adsorbents from the perspective of material design and engineering application, providing valuable insights for further research in this field.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Polymer Science
Scott S. Ruppel, Junfeng Liang
Summary: Polydopamine (PDA) is a versatile scaffolding material that can coat any surface and has high biocompatibility. This study demonstrates the use of PDA to synthesize calcium phosphate on surfaces that normally cannot form mineral layers. By adjusting the reaction conditions, the properties of PDA coatings can be modified, thereby affecting the mineral layer formed on the polymer surface. The enhanced ability of PDA to form calcium phosphate can improve the biocompatibility of biomedical implants.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Construction & Building Technology
Munique Fante, Francisco Roger Carneiro Ribeiro, David Brandao Nunes, Regina Celia Espinosa Modolo, Claudio de Souza Kazmierczak, Mauricio Mancio, Francisco Manoel Wohnrath Tognoli, Afonso Rangel Garcez de Azevedo, Marlova Piva Kulakowski
Summary: This study evaluated the physical and chemical effects of calcium carbonate limestone filler in mortar pastes subjected to accelerated carbonation. Results showed that a 25% filler substitution at a water/cement ratio of 0.42 achieved the best performance in terms of compression strength and water absorption. Carbonation primarily affected by the water/cement ratio rather than substitution level, consuming portlandite and forming calcite. Further studies identified additional calcium carbonate polymorphs after 28 days of accelerated carbonation.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Review
Chemistry, Applied
Hao-Qiang Cao, Jun-Kuan Li, Fa-Guang Zhang, Dominique Cahard, Jun-An Ma
Summary: This review comprehensively summarizes modern synthetic methods towards asymmetric construction of chiral amino carboxylic-phosphonic acid derivatives, including phosphono-containing amino acid derivatives and catalytic enantioselective synthesis as a potent strategy. Topics such as chiral resolution protocols, chiral auxiliary-directed syntheses, and valorization of abundant chiral amino acid resources are also discussed.
ADVANCED SYNTHESIS & CATALYSIS
(2021)
Article
Chemistry, Inorganic & Nuclear
Bingzhen Zhang, Yahui Zhu, Shunli Shi, Ying Li, Yanping Luo, Zhixin Huang, Weiming Xiao, Shuhua Wang, Pengfei Zhang, Yuan Shu, Chao Chen
Summary: Hierarchical porosity and high surface area carbonates and their derivatives are obtained through a facile and green mechanochemistry combined with the salt-assisted tactic. This method eliminates the use of solvents and creates pores in just 5 minutes through ball milling. Pd/H-CaCO3 catalyst exhibits excellent catalytic efficiency in the synthesis of aniline and dye degradation. The combination of mechanochemistry and salt-assisted tactic provides a convenient and efficient pathway for processing porous materials.
INORGANIC CHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Tilman A. Grunewald, Stefano Checchia, Hamadou Dicko, Gilles Le Moullac, Manaarii Sham Koua, Jeremie Vidal-Dupiol, Julien Duboisset, Julius Nouet, Olivier Grauby, Marco Di Michiel, Virginie Chamard
Summary: This study utilizes nanobeam X-ray total scattering and reverse Monte Carlo modeling to spatially resolve the amorphous calcium carbonate compounds in mollusc shells. Three distinct amorphous compounds were discovered, and the presence of magnesium in the shell and its role in the amorphous-to-crystal transition were demonstrated. The findings contribute to the understanding of biomineralization and provide insights for bioinspired synthetic strategies.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Chemistry, Multidisciplinary
Erdi Akman, Ahmed Esmail Shalan, Faranak Sadegh, Seckin Akin
Summary: Perovskite solar cells (PSCs) show great promise for photovoltaic applications due to their low-cost assembly, exceptional performance, and low-temperature solution processing. This study focuses on stabilizing the alpha-FAPbI(3) perovskite phase using PFBPA as a passivation agent, resulting in high-quality and stable PSCs with improved efficiency and long-term stability. The thin PFBPA passivation layer effectively protects the perovskite layer from moisture, maintaining over 90% of the original efficiency under different humidity levels after 600 hours.
Article
Engineering, Environmental
Mengmeng Sun, Hui Jin, Xiaofu Guo, Shizhao Wang, Jingtao Bi, Zhiyong Ji, Yingying Zhao
Summary: This study aims to achieve the high-value application of calcium during seawater decalcification. Aragonite or vaterite with a high purity exceeding 99% was successfully synthesized using synthetic seawater as a calcium source and Na2CO3/NaHCO3 solution as the carbonate supplier. The effects of coexisting ions in synthetic seawater on crystal polymorph and crystallization kinetics were systematically investigated, and it was found that the presence of Mg2+, K+ or SO42- favored the precipitation of aragonite while Mg-free synthetic seawater favored the formation of vaterite. Additionally, hydrophobic spherical vaterite particles were prepared by in-situ surface modification using alka-nolamide 6502 as a surfactant, demonstrating a promising approach to enhance the utilization of calcium during the seawater decalcification process.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Hussein Awada, Assala Al Samad, Danielle Laurencin, Ryan Gilbert, Xavier Dumail, Ayman El Jundi, Audrey Bethry, Rebecca Pomrenke, Christopher Johnson, Laurent Lemaire, Florence Franconi, Gautier Felix, Joulia Larionova, Yannick Guari, Benjamin Nottelet
ACS APPLIED MATERIALS & INTERFACES
(2019)
Article
Chemistry, Medicinal
Adele Larcher, Alessio Nocentin, Claudiu T. Supuran, Jean-Yves Winum, Arie van der Lee, Jean-Jacques Vasseur, Danielle Laurencin, Michael Smietana
ACS MEDICINAL CHEMISTRY LETTERS
(2019)
Article
Chemistry, Multidisciplinary
Danielle Laurencin, Pascal G. Yot, Christel Gervais, Yannick Guari, Sebastien Clement, Erik Elkaim, Matthieu Paillet, Didier Cot, Sebastien Richeter
JOURNAL OF PORPHYRINS AND PHTHALOCYANINES
(2019)
Article
Nanoscience & Nanotechnology
Niels Van Velthoven, Yanhui Wang, Hannah Van Hees, Mickael Henrion, Aram L. Bugaev, Guillaume Gracy, Kassem Amro, Alexander V. Soldatov, Johan G. Alauzun, P. Hubert Mutin, Dirk E. De Vos
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Chemistry, Applied
Petr Machac, Johan G. Alauzun, Ales Styskalik, Damien P. Debecker, P. Hubert Mutin, Jiri Pinkas
Summary: High-surface-area mesoporous aluminophosphates and aluminophosphonates were prepared using non-hydrolytic sol-gel reactions, resulting in stable xerogels with catalytic potential for post-synthetic grafting. The dried xerogels exhibited large surface areas and showed comparable catalytic performance to benchmark catalysts in the dehydration of ethanol to ethylene.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Engineering, Environmental
Wassim El Malti, Mostafa Hamieh, Amer Noaman, Rim Nasser El-Dine, Akram Hijazi, Wassef Al-Khatib
Summary: This study utilized banana stem agro-waste to prepare activated carbon as a filler for polyurethane foam, effectively improving the adsorption performance for removing heavy metals from aqueous solutions. The loaded polyurethane showed good adsorption capacity, achieving high removal efficiency of metal ions after multiple passes and pH adjustments. Rapid selectivity and seawater deionization tests confirmed the pellets' capacity performance in removing various aqueous ions.
JOURNAL OF ECOLOGICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Wassef Al-Khatib, Mourtada Srour, Houssein Bazzi, Chaden Haidar, Akram Hijazi, Abdel El-Ameer Al-Rekaby, Wassim El Malti
Summary: Activated carbon derived from lemongrass was used as a filler in polyurethane foam for the removal of lead and cadmium ions from water. The cost-effective polyurethane foam demonstrated significant adsorption capacity even after one filtration.
BIOREMEDIATION JOURNAL
(2023)
Article
Chemistry, Applied
Mohammed A. H. Khalafalla, N. M. A. Hadia, Asmaa M. Elsayed, Mansoor Alruqi, Wassim El Malti, Mohamed Shaban, Mohamed Rabia
Summary: In this study, polyaniline-assisted deposition of PbS on antimony tin oxide (ATO) glass was conducted to form ATO/PANI/PbS composite. Various analyses were performed to confirm the structure and properties of the composite. The resulting composite showed spherical PbS particles inside and outside the PANI network, with optical enhancement and increased bandgap. The electrode exhibited good response to light and high reproducibility and stability in the H-2 generation process.
ADSORPTION SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Applied
N. M. A. Hadia, Sayeda Eid, Mohamed Shaban, S. H. Mohamed, Asmaa M. Elsayed, Ashour M. Ahmed, Meshal Alzaid, Ahmed Adel A. Abdelazeez, Wassim El Malti, Mohamed Rabia
Summary: This study presents the preparation and characterization of a glass/P3MA/PbS quantum dot optoelectronic photodetector, which can detect and sense light in the UV, Vis, and NIR regions. The study aims to overcome the limitations of previous studies that focused on detectors in only one or two optical regions, and it utilizes low-cost techniques.
ADSORPTION SCIENCE & TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Lolwa Haydar, Wassim El Malti, Vincent Ladmiral, Ali Alaaeddine, Bruno Ameduri
Summary: New fluorinated polyhydroxyurethanes (FPHUs) were synthesized through the polyaddition reaction of a fluorinated bis(cyclocarbonate) (bis-CC) with a diamine. The fluorinated bis-CC was synthesized using a fluorinated diepoxide and LiBr catalyst. The reaction conditions were optimized and the FPHUs were characterized by various spectroscopic techniques and compared to their hydrogenated counterparts.
Article
Chemistry, Physical
N. M. A. Hadia, Mohamed Shaban, Ashour M. Ahmed, W. S. Mohamed, Meshal Alzaid, Mohammed Ezzeldien, M. F. Hasaneen, Wassim El Malti, Ahmed Adel A. Abdelazeez, Mohamed Rabia
Summary: This study focuses on synthesizing CuFeO2 as a primary photocatalytic material for hydrogen generation. The photoelectrode CuFeO2/CuO/Cu prepared by burning a Cu foil dipped in FeCl3 showed excellent optical behavior and generated 90 μmol/h of H-2 from sewage water. The electrode exhibited significant enhancement in light compared to dark.
Article
Chemistry, Multidisciplinary
Ali Alaaeddine, Vincent Ladmiral, Wassim El Malti, Lolwa Haydar, Sylvain Caillol, Bruno Ameduri
Summary: Efficient methods for the cycloaddition of CX2 with fluorinated epoxides to produce cyclic carbonates or cyclic xanthates were developed. By optimizing the reaction conditions, high yields of the desired products were obtained. The reaction was proven to be reproducible with different substrates and two new fluorinated five-membered bis-CCs and bis-XAs were synthesized with high yields.
COMPTES RENDUS CHIMIE
(2023)
Article
Chemistry, Multidisciplinary
Antoinette Fayad, Wassim El Malti, Bruno Ameduri, Ali Alaaeddine
Summary: New functionalized vinyl ethers were synthesized by transetherification reaction with the use of an air-stable palladium catalyst. The reaction conditions were optimized, leading to good yields of the desired products.
COMPTES RENDUS CHIMIE
(2022)
Article
Chemistry, Multidisciplinary
Wassim El Malti, Akram Hijazi, Zahraa Abou Khalil, Zahraa Yaghi, Mohamad Kazem Medlej, Mohamad Reda
Summary: The accumulation of heavy metals and dyes in wastewater poses a serious threat to the environment. In this study, agricultural waste was utilized as adsorbents to remove copper, cadmium, and methylene blue from water. The physical and chemical properties of the adsorbents were investigated, and various operational parameters were examined. The findings show that the citrus Sinensis peel adsorbent demonstrated better removal performance.
Article
Chemistry, Physical
Sanghoon Kim, Mario De bruyn, Nicolas Louvain, Johan G. Alauzun, Nicolas Brun, Duncan J. Macquarrie, Bruno Boury, Lorenzo Stievano, P. Hubert Mutin, Laure Monconduit
SUSTAINABLE ENERGY & FUELS
(2019)