Article
Chemistry, Multidisciplinary
R. R. Samal, Aneeya K. Samantara, S. Mahalik, J. N. Behera, B. Dash, K. Sanjay
Summary: The study focuses on the synthesis of Co3O4 nanoflakes via a hydrothermal method with different surfactants and annealing temperatures, comparing their electrochemical performance. The CTAB-assisted Co3O4 exhibited superior charge storage performance and cyclic durability compared to the SLS-assisted counterpart, indicating its potential as a scalable and efficient energy storage material.
NEW JOURNAL OF CHEMISTRY
(2021)
Correction
Chemistry, Multidisciplinary
R. R. Samal, Aneeya K. Samantara, S. Mahalik, J. N. Behera, B. Dash, K. Sanjay
Summary: The study focuses on the hydrothermal synthesis of cobalt oxide nanoparticles with the assistance of anionic and cationic surfactants as the active electrode material for supercapacitors.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Muchu Zhou, Reza Foudazi
Summary: This study investigates the effect of using different cosurfactants on the structure of polyHIPE monoliths. It is found that cosurfactants can alter the pore size and openness, as well as affect interfacial elasticity, which in turn impacts the formation of connections between pores. Compression tests reveal a significant influence of pore structure on the mechanical properties.
Review
Chemistry, Inorganic & Nuclear
Neha Benedicta Fernandes, Yogendra Nayak, Sanjay Garg, Usha Y. Nayak
Summary: The field of advanced nanotechnology offers a wide range of nanotheranostics for treating malignant tumors. Among them, Mesoporous Silica Nanoparticles (MSNs) combined with upconversion nanoparticles have gained prominence in biomedicine research due to their remarkable properties in drug targeting, bio-imaging, and photodynamic/photothermal therapy. MSNs have versatile pore sizes, high drug loading efficiency, and can be functionalized to enhance their applicability. This article focuses on MSN-based hybrid nanotheranostics and their designing strategies, characterization, applications, efficacy, limitations, biotoxicity, as well as current challenges and future perspectives.
COORDINATION CHEMISTRY REVIEWS
(2023)
Article
Polymer Science
Nacer Badi, Aashis S. Roy, Hatem A. Al-Aoh, Mohamed S. Motawea, Saleh A. Alghamdi, Abdulrhman M. Alsharari, Abdulrahman S. Albaqami, Alex Ignatiev
Summary: Porous TiO2-doped polyaniline and polyaniline nanocomposite fibers prepared by in situ polymerization using anionic surfactant in an ice bath were studied. The structural and morphological characteristics of the nanocomposites were analyzed, and their electrical conductivity and hydrogen absorption capacity were measured. The results showed that the TiO2-doped polyaniline nanocomposites exhibited higher DC conductivity and hydrogen absorption capacity compared to other nanocomposites.
Article
Chemistry, Physical
Li-Yuan Zhang, Yan-Lin Han, Jin-Ju Yang, Sheng-Lian Deng, Bi-Yu Wang
Summary: Carbon quantum dots (CQDs) were prepared using citric acid as a carbon source, and then compounded with layered mesoporous titanium dioxide (LM-TiO2) to form composites. The addition of CQDs greatly enhanced the light absorption intensity of LM-TiO2 in the ultraviolet range and improved the degradation rate of organic pollutants compared to simple TiO2 and LM-TiO2.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Chemical
Abeer Beagan, Riyadh Alshammari, Lamya Alotaibi, Hadeel Albarrak, Khalid Alotaibi, Abdullah Alswieleh
Summary: Efficient removal of dyes from contaminated water using magnetic mesoporous nanoparticles modified with cationic polymer brush has been reported. The materials showed high adsorption capacity, rapid synthesis process, and easy separation from solution, making them effective for removing other pollutants from water and wastewater.
Article
Chemistry, Multidisciplinary
Biswa Mohan Prusty, Rama Karn, Anjali Patel, Priyanka Mazumder, Sachin Kumar, Debasis Manna
Summary: Host-guest complexation-based suprasomes can effectively deliver benzimidazolium amphiphiles, with β-CD and Zn2+ or an acidic environment serving as stimuli for their assembly and disassembly. The supramolecular nanomedicine, encapsulating tetracycline, exhibits robust and adjustable antibacterial activity, making it a promising candidate for next-generation vesicle-based drug delivery systems.
CHEMICAL COMMUNICATIONS
(2023)
Article
Biochemistry & Molecular Biology
Javed Masood Khan, Ajamaluddin Malik, Prerna Sharma, Sadaf Fatima
Summary: In this study, the impact of the negatively charged detergent sodium dodecyl sulfate (SDS) on insulin amyloid fibrillation was investigated. It was found that SDS can accelerate insulin aggregation at pH 2.0, but not at pH 7.4.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Physical
Shuo Lu, Jinfeng Dong, Xuefeng Li
Summary: Ultra-long tailed zwitterionic surfactants can form aqueous wormlike elastic micelles, while shorter ones mainly exhibit spherical viscous micelles. Anionic surfactants are widely used to regulate the micellar morphology from spherical to wormlike. Systematic investigations on the molecular level are insightful for understanding the regulative mechanism of viscoelasticity. The experiment results show that sodium alkylsulfate (SAS) promotes the formation of SAS/DHSB hybrid wormlike micelles.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Sumadi Paryoto, Yoga Romdoni, Ivan Kurnia, Merry Marteighianti, Oki Muraza, Munawar Khalil
Summary: This study investigates the effects of individual and combined systems on the interfacial tension and wettability alteration characteristics of a combination mixture of colloidal Fe3O4 nanoparticles and amphoteric-anionic surfactant. The results show that combining the two surfactants reduces the interfacial tension and adding Fe3O4 nanoparticles at lower concentrations increases the interfacial tension. Furthermore, the combination also changes the wettability from hydrophilic to strongly hydrophilic conditions. The study also finds that adding 0.01 wt% Fe3O4 colloidal nanoparticles in the surfactant mixture provides an optimal recovery efficiency.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Review
Chemistry, Multidisciplinary
Olaiya Peter Oni, Yan Hu, Sijie Tang, Honghan Yan, Hao Zeng, Huimin Wang, Liya Ma, Changying Yang, Jiabing Ran
Summary: Mesoporous hydroxyapatite (MHAP), characterized by high porosity, high surface area, and three-dimensional ordered passageways, has diverse applications in various fields. This review provides a comprehensive understanding of the synthesis strategies and practical applications of MHAP. The synthesis strategies are classified into three categories based on the properties of the templates used. The applications of MHAP are mainly focused on wastewater treatment, drug delivery, and bone tissue engineering. The potential of MHAP in drug delivery systems for disease therapy is emphasized. Future perspectives and development trends of MHAP are also discussed.
MATERIALS CHEMISTRY FRONTIERS
(2022)
Article
Pharmacology & Pharmacy
Luis Filipe, Telma de Sousa, Dario Silva, Miguel M. Santos, Manuela Ribeiro Carrott, Patricia Poeta, Luis C. Branco, Sandra Gago
Summary: The combination of active pharmaceutical ingredients in the form of ionic liquids or organic salts (API-OSILs) with mesoporous silica nanoparticles (MSNs) as drug carriers can enhance the capabilities of current antibiotics, especially against resistant strains of bacteria. In this study, three nanomaterials based on the modification of MSN surface with different ionic liquids coupled with anionic ciprofloxacin were prepared. These materials showed no cytotoxicity and exhibited improved antibacterial activity against both resistant and sensitive strains of K. pneumoniae. One particular nanomaterial, [MSN-Chol][Cip], showed significant enhancement with a tenfold decrease in MIC against sensitive strains. The importance of this study is rated at 8 out of 10 for its potential application in combating antibiotic resistance.
Article
Chemistry, Physical
Kei Watanabe, Yuki Watanabe, Kazuki Masuda, Zhang Yang, Ami Kaneshima, Akira Motoyama, Takaaki Shima, Koji Tsuchiya, Hideki Sakai
Summary: This study investigates the formation of the sponge phase in a commercial polyethoxylated nonionic surfactant system. The irregularity of the phase formation is revealed, and the important factors for sponge phase formation are identified. Furthermore, the study demonstrates the phenomenal wetting behavior of the sponge phase on a hydrophobic surface with unevenness.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Manuela Lechuga, Alejandro Avila-Sierra, Ismael Lobato-Guarnido, Ana I. Garcia-Lopez, Francisco Rios, Mercedes Fernandez-Serrano
Summary: There is an increasing use of nanotechnology in cosmetics, with nanocarriers improving the quality and performance of products. However, the interaction between compounds can cause skin irritation. To address this, a study investigated the use of low-toxicity silica nanoparticles in combination with anionic and non-ionic surfactants to develop safer formulations. The inclusion of silica nanoparticles can potentially reduce the skin irritation potential caused by the mixture of surfactants.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Nitumani Das, Ratul Paul, Sohag Biswas, Risov Das, Rupak Chatterjee, Asim Bhaumik, Sebastian C. Peter, Bryan M. Wong, John Mondal
Summary: This study constructs a chemically stable, pyridine-equipped, and imine-linked porous organic polymer (Py-POP), which achieves photocatalytic fixation of CO2 and converts styrene epoxide (STE) to styrene carbonate (STC) under visible light illumination. The research provides mechanistic insight into the effectiveness of efficient, sustainable porous organic photocatalysts in visible light-driven CO2 conversion for various energy applications.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Anirban Ghosh, Biswajit Chowdhury, Asim Bhaumik
Summary: We developed a cost-effective and green synthetic method to prepare controllable perforated hollow mesoporous silica nanoparticles. The grafting of Al(III) onto the silica framework makes it an efficient solid acid catalyst. The Al-doped hollow MSNs showed higher catalytic efficiency compared to contemporary aluminosilicate frameworks.
Article
Chemistry, Multidisciplinary
Snehasis Mishra, Kaustav Das, Sujan Chatterjee, Panchanan Sahoo, Sudip Kundu, Mrinal Pal, Asim Bhaumik, Chandan Kumar Ghosh
Summary: Carbon dots (CQDs) with tunable fluorescence emission and excitation, high water solubility, good photostability, and biocompatibility are considered promising for tumor theranostics. This study focused on the synthesis and characterization of highly fluorescent CQDs from orange juice. CQD/Ag heterostructures were also synthesized and their photostability and characterization were investigated. Cellular toxicity measurements were conducted to select the superior CQD/Ag heterostructure in the human colorectal carcinoma (HCT 116) cell line, along with the observation of cell death signaling through the ROS-dependent mitochondrial-mediated pathway.
Article
Chemistry, Multidisciplinary
Santu Ruidas, Avik Chowdhury, Anirban Ghosh, Avik Ghosh, Sujan Mondal, A. D. Dinga Wonanke, Matthew Addicoat, Abhijit Kumar Das, Arindam Modak, Asim Bhaumik
Summary: A new porous crystalline COF, C6-TRZ-TPA COF, has been synthesized via extended Schiff base condensation. This COF exhibits high surface area and pore volume, making it an efficient photocatalyst for wastewater treatment and an excellent adsorbent for iodine capture.
Article
Electrochemistry
Sabuj Kanti Das, Avik Chowdhury, Koushik Bhunia, Anirban Ghosh, Debabrata Chakraborty, Manisha Das, Utpal Kayal, Arindam Modak, Debabrata Pradhan, Asim Bhaumik
Summary: Robust and sustainable bifunctional electrocatalysts, Ni-Por-Py and Cu-Por-Py, consisting of transition metal coordinated porphyrin building blocks in pi-conjugated polymer skeletons, have been developed for efficient hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) under alkaline conditions. The excellent electrocatalytic activity of these catalysts is attributed to their high specific surface areas and microporosity, which facilitate electron transfer processes.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Inorganic & Nuclear
Rima Biswas, Debojit Ghosh, Samarpita Das, Sauvik Chatterjee, Samanka Narayan Bhaduri, Asim Bhaumik, Papu Biswas
Summary: Copper immobilized 2D-hexagonally ordered mesoporous silica material (CuMS) has been synthesized as an electrochemical and colorimetric dual-technique-based sensing platform for sulfite detection. The immobilization of copper on silica was achieved through a ligand. The synthesized CuMS material showed promising electrocatalytic activity and high sensitivity for sulfite oxidation, as well as excellent colorimetric detection ability.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Samanka Narayan Bhaduri, Debojit Ghosh, Rupak Chatterjee, Samarpita Das, Indrani Pramanick, Asim Bhaumik, Papu Biswas
Summary: A covalent organic polymer (COP) based on ethylene glycol-linked tetraphenylporphyrin has been developed. The Ni(II)-incorporated EG-POR material displayed excellent activity in both methanol oxidation reaction (MOR) and oxygen evolution reaction (OER) in an alkaline medium. The material showed high stability and has the potential to be used as a non-noble metal MOR catalyst.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Avik Chowdhury, Sudip Bhattacharjee, Sayantan Chongdar, Bhabani Malakar, Anindita Maity, Asim Bhaumik
Summary: A novel porous magnesium aluminum phosphate (MALPO) material with high specific surface area and hierarchical porosity was synthesized through a hydrothermal template-free approach. MALPO exhibited excellent catalytic performance in Knoevenagel condensation reaction, yielding up to 99% yield of the products.
Review
Chemistry, Multidisciplinary
Priyanka Kalita, Ratul Paul, Ankita Boruah, Duy Quang Dao, Asim Bhaumik, John Mondal
Summary: Chemical warfare agents, such as sulfur mustards, have been classified as fatal weapons of mass destruction due to their toxicity and deadly consequences. The detection and detoxification of these dangerous chemicals are critical for protection, sparking scientific interest globally. Various photoresponsive porous materials have been found highly effective for the detoxification of sulfur mustards.
Article
Chemistry, Multidisciplinary
Priyanka Kalita, Ratul Paul, Chih-Wen Pao, Rupak Chatterjee, Asim Bhaumik, John Mondal
Summary: We have developed a Friedel-Crafts alkylation strategy to synthesize a porous organic polymer, Ni@T-POP, based on a Ni-salphen complex derived from 2-hydroxy-5-methoxybenzaldehyde. X-ray absorption spectroscopy (XAS) analysis revealed the presence of Ni-N2O2 core sites in the Ni@T-POP framework, resulting in excellent catalytic efficiency for the oxidative decontamination of sulfur mustards (HD's) compared to its complex precursor.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Amitesh Roy, Najirul Haque, Ritayan Chatterjee, Surajit Biswas, Asim Bhaumik, Mitali Sarkar, Sk. Manirul Islam
Summary: A metal nanoparticle embedded catalyst AgNPs@TzTa-POP was fabricated by immobilizing silver nanoparticles on the surface of a triazinetriamine-based porous organic polymer (TzTa-POP). This catalyst showed high catalytic activity in the carboxylative cyclization of propargyl alcohols and the three component coupling reaction involving CO2, aromatic/aliphatic amine, and aliphatic/aromatic halide. It achieved high selectivity and yield for the desired products under mild reaction conditions, and maintained its activity for multiple reaction cycles.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Dip Kumar Nandi, Jhumur Seth, Pekham Chakrabortty, Swarbhanu Ghosh, Avik Chowdhury, Asim Bhaumik, Sk Manirul Islam
Summary: In this study, a composite catalyst consisting of a triazine based porous organic polymer and nickel nanoparticles was synthesized, and it showed excellent photocatalytic activity for the reduction of CO2 to methanol. The composite catalyst exhibited high surface area and low band gap, and demonstrated high catalytic efficiency and recyclability, indicating great potential for renewable carbon source methanol synthesis.
Article
Chemistry, Physical
Sayantan Chongdar, Anirban Ghosh, Rajaram Bal, Asim Bhaumik
Summary: In this study, microwave-assisted rapid synthesis of metal-organic framework material ZIF-9 was reported, which exhibits high current density and faradaic efficiency in the electrochemical oxidation of alcohols, showing potential industrial applications.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Riddhi Mitra, Bhabani Malakar, Asim Bhaumik
Summary: This study presents a method for synthesizing 5-HMF from biomass resources, using catalysts without templates and organic molecules, achieving efficient conversion of fructose to 5-HMF.
Article
Chemistry, Physical
Loknath Thapa, Asim Bhaumik, Swastik Mondal, C. Retna Raj
Summary: This study demonstrates a ternary heterostructure electrocatalyst based on NixSy, MoS2, and MoC for the efficient oxidation of 5-hydroxymethylfurfural (HMF). The catalyst exhibits 100% faradaic efficiency and high FDCA production rate, and shows good stability and reusability.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Applied
Lulu Wan, Gan Ye, Yuying Chang, Zhaohan Yang, Guangming Shi, Qiuli Zhang, Jin Wang
Summary: This study developed an efficient approach to upgrade the oxidative desulfurization (ODS) performance of Zr-MOFs with proton stimulation. Experimental results showed that the introduction of protons can significantly improve the ODS efficiency. This work provides a facile and efficient strategy for enhancing the ODS performance of pristine MOFs.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Qiqi Lu, Xiu-Zhi Wei, Qi Zhang, Xinghua Zhang, Lungang Chen, Jianguo Liu, Yubao Chen, Longlong Ma
Summary: The application of Pd-M bimetallic clusters in the selective hydrogenation reaction was investigated, and the Pd0.6Ni@S-1 catalyst was found to exhibit high selectivity in the conversion of phenylacetylene to styrene. The confinement effect of zeolite inhibited over-hydrogenation and improved the stability of the catalysts. Furthermore, the solvent properties also influenced the product distribution.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Review
Chemistry, Applied
Bo Li, Lumin Hong, Changdi Jing, Xianyang Yue, Huabo Huang, Qianqian Jiang, Jianguo Tang
Summary: MOF materials with adjustable pore structure and polymetallic sites have been explored as electrocatalysts for OER. Bimetallic materials show higher electrocatalytic activity than monometallic materials, while carbon-coated and doped MOF catalysts exhibit stable and good OER activity. The synergistic interaction between polymetallic active sites effectively improves the intrinsic activity of MOF on OER.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Shichun Gu, Ruyi Wang, Junxiong Zhang, Hairong Dong, Liping Deng, Xue Wang, Yapeng He
Summary: In this study, monodispersed hollow mesoporous organosilica nanospheres with controlled core cavity and mesoporous shell were successfully synthesized. These hollow nanospheres showed a high adsorption capacity for Pb2+ in water solution and exhibited acceptable recycling and stability.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Lucie Havelkova, Bogdana Bashta, Michaela Vankova, Jiri Zednik, Jiri Brus, Jan Svoboda, Alice Vagenknechtova, Jan Sedlacek
Summary: An atom-economic one-step chain-growth coordination homopolymerization providing high yields of functionalized hyper-cross-linked polyacetylenes with a permanent micro/mesoporous texture and a BET area of up to 1062 m2/g is reported. The homopolymerization is highly compatible with the heteroatom groups of the monomers and allows the preparation of well-defined porous networks with a wide spectrum of univalent groups.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Shirui Pang, Yuxin Liu, Zhe Zhang, Yuxin Li, Chunguang Li, Zhan Shi, Shouhua Feng
Summary: This study focuses on using a functional separator to suppress the shuttle effect of soluble lithium polysulfides in Li-S batteries. It is found that the functionalized sulfonic acid group not only accelerates the conduction of lithium ions, but also repels polysulfide anions through electrostatic interactions. The performance of the batteries is significantly improved with the use of this functionalized separator.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Pingping Li, Lei Han, Donghun Kim, Kemal Celebi
Summary: This study presents a fast synthetic strategy for the preparation of high-quality platelike MFI crystals using a thin-wall tubular reactor. The strategy is efficient, time-saving, and can be optimized, making it applicable to the preparation and optimization of other important materials.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Haitao Yin, Wei Wang, Yuxin Li, Hu Wen, Shuang Chen, Nanzhe Jiang
Summary: This study presents a template-free and solid-state-like crystallisation method for the synthesis of ZSM-5 zeolite, which can be scaled-up in production. Mechanical mixing of starting material components improves the dispersion of materials, leading to ZSM-5 zeolite with high crystallinity and size uniformity.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Congli Li, Jiang Wang, Zhenfei Wang, Jinxiang Dong, Qi Shi
Summary: This study investigates the evolution and autoreduction behavior of Cu species in CuCl/NaY adsorbent during vacuum thermal activation. It is found that Cu species migrate from supercages to the nearby plane of the six-membered ring connecting the supercage and sod cage during vacuum activation. At 150 degrees C, vacuum autoreduction occurs, resulting in the formation of Cu+Cl- species. The results provide reference for the preparation of pi-complex adsorbents.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Irena Khatrin, Iman Abdullah, Alan J. Mccue, Yuni K. Krisnandi
Summary: Hierarchical porous system with two types of mesopores provides a solution to the diffusion limitation in conventional zeolites. Cobalt oxide impregnated hierarchical ZSM-5 zeolite samples with intra- and inter-crystalline mesopores were synthesized using two different strategies. The physicochemical properties of the modified catalysts were analyzed, revealing distinct features given by the two mesoporous configurations. Catalytic activity analysis showed that Co-oxide/ZSM-5 with inter-crystalline mesopores exhibited higher activity in methane partial oxidation reaction compared to Co-oxide/ZSM-5 with intra-crystalline mesopores.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Nataliia Reinders, Martin Durovic, Pavla Honcova, Zaneta Dohnalova, Jana Luxova, Stanislav Slang, Jhonatan Rodriguez-Pereira, Petra S. Sulcova
Summary: This study presents a new method for preparing a microporous Ni2P/C catalyst with high catalytic activity. The redox reaction and carbon matrix formation during high-temperature treatment contribute to the stability and activity of the catalyst. Experimental and analytical results suggest that the microporous structure of the composite plays a crucial role in its catalytic performance. These findings are important for practical applications of efficient hydrogen production by water electrolysis.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Ana Raquel Bertao, Viktoriya Ivasiv, Cristina Almeida-Aguiar, Patricia R. Correia, Antonio M. Fonseca, Manuel Banobre-Lopez, Fatima Baltazar, Isabel C. Neves
Summary: This study developed a zeolite-based delivery system (ZDS) using silver and 5-Fluorouracil as antimicrobial and antineoplastic agents. The ZDS was characterized and its antimicrobial properties were investigated, showing better antibacterial effectiveness for the ZDS containing both silver and 5-FU.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Naonobu Katada, Nobuki Ozawa, Etsushi Tsuji, Keigo Kanehara, Akiho Otsuka, Taiga Sakamoto, Kirari Umezawa, Hitoshi Matsubara, Satoshi Suganuma, Momoji Kubo
Summary: First principles calculations were used to investigate the pathway for methylation of benzene with methane catalyzed by MFI type zeolite-supported Co species. The strong adsorption of benzene on Co is found to lower the activation energy for methane dissociation and promote the formation of toluene precursor. The activation energy of methane dissociation is also affected by the Al-Al distance.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Yuan Liu, An T. Ta, Kyoung Chul Park, Shenyang Hu, Natalia B. Shustova, Simon R. Phillpot
Summary: We use density functional theory to investigate the interactions of cerium, americium, and curium cations with crown ethers. Our results demonstrate that crown ethers can capture cerium, americium, and curium ions, and modifying the crown ether structure by substituting nitrogen atoms for oxygen atoms significantly increases their binding energies with radionuclides.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Zhengwu Peng, Shixing Wang, Yihui Wu, Xiang Liu, Hongliang Liu, Dekun Zhang, Likang Fu
Summary: An efficient adsorbent for recovery of germanium was prepared and characterized in this study. The adsorption behavior of Ge(IV) on the adsorbent was analyzed, and the results showed that it follows pseudo-secondary kinetic model and Langmuir isotherm model. The adsorbent exhibited good anionic anti-interference ability and can still maintain high adsorption efficiency after repeated adsorption.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)