Article
Polymer Science
Norsuhailizah Sazali, Zawati Harun
Summary: This study successfully synthesized zeolite LTA (Z-LTA) from kaolin using a hydrothermal method, demonstrating the impact of different alkaline solution concentrations and crystallization times on the transformation of Z-LTA. Under suitable conditions, low-grade kaolin can be transformed into high crystallinity Z-LTA.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2022)
Article
Engineering, Environmental
Mouna Sayehi, Gerard Delahay, Hassib Tounsi
Summary: A simple and easy process for synthesizing zeolite using waste glass and aluminum scraps was reported in this study. The recovered solid after hydrothermal treatment at 60 degrees C for 6 days was identified as zeolite Na-LTA contaminated with a small quantity of Na-P1.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Materials Science, Ceramics
Suyeon Yu, Seungdon Kwon, Kyungsu Na
Summary: Changing synthetic parameters such as TMAOH/NaOH ratio, aging time, and hydrothermal conditions significantly influences the crystal size and uniformity of LTA zeolites. By adjusting the TMAOH/NaOH ratio, the average crystal size of LTA zeolite crystals can be tuned from less than 100 nm to 1 μm with a uniform distribution. Increasing aging time results in smaller and more uniform LTA zeolite crystals.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Energy & Fuels
Jayaprakash Madhu, Venkatraman Madurai Ramakrishnan, Pavithrakumar Palanichamy, Agilan Santhanam, Muthukumarasamy Natarajan, Peulakumari Ponnaian, Kathirvel Brindhadevi, Arivalagan Pugazhendhi, Dhayalan Velauthapillai
Summary: In this study, a simple and direct method to synthesize Rubik's cube-like Linda Type (LTA) zeolite NaA structure was reported. The synthesized zeolite showed good crystallinity and high purity, with a Rubik's cube-like morphology and mesoporous nature.
Article
Chemistry, Applied
Ryuma Tanaka, Yuta Ito, Yasuhisa Hasegawa, Takeshi Higuchi
Summary: This study focused on the application of LTA zeolite membranes in the dehydration of ethanol, demonstrating the successful preparation of thin membranes with high permeation flux and separation factor by optimizing crystal growth conditions. The key factor affecting the permeability of the membrane was identified as the change in crystallographic orientation caused by aging, as indicated by SEM observation and XRD analysis.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Applied
Kanghua Miao, Jinqiang Gao, Jian Zhang, Lei Dong, Qiang Jia, Ruiqiang Wang, Liwei Yu, Shuangwei Wang, Mei Hong, Shihe Yang
Summary: Through shape-preserving steam-assisted crystallization, monodisperse zeolite microspheres with high sphericity and tight particle size distribution were successfully synthesized, exhibiting excellent crystallinity, mechanical strength, thermal stability, and outstanding performance in gas separation.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Physical
Jong Hun Kang, Lynne B. McCusker, Michael W. Deem, Christian Baerlocher, Mark E. Davis
Summary: The synthesis of large single crystals of pure-silica STW-type molecular sieves using different types and amounts of amino acids, with 12345PMI fitting better into the STW cage than 2E134TMI. Furthermore, the achievement of an enantioenriched R-STW-type molecular sieve with a Si/Ge ratio of 2.2 using a chiral, dicationic OSDA with two stereocenters.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Physical
Florian Painer, Andre Baldermann, Florian Gallien, Stefanie Eichinger, Florian Steindl, Reiner Dohrmann, Martin Dietzel
Summary: In this study, the hydrothermal alteration of perlite into zeolites was investigated for water treatment and softening applications. Different types of zeolites were successfully synthesized from perlite powder, and their performance for metal ion removal and water softening was evaluated. The LTA-zeolite derived from perlite exhibited excellent removal capacity and can be applied effectively for water treatment and softening.
Article
Chemistry, Applied
Xiaowei Wu, Yuqin Li, Mingyu Peng, Wenkai Xu, Tian Gui, Xiangshu Chen, Hidetoshi Kita
Summary: This study successfully fabricated high selective LTA zeolite membranes and demonstrated their excellent hydrothermal stability and separation performance in the dehydration of water-rich acrylamide solutions. The results revealed that acrylamide could form a protective layer on the membrane surface, effectively inhibiting the degradation of zeolite crystals by high-temperature water. Furthermore, the application of LTA zeolite membrane in the separation of other water-rich solutions could be expanded by adding a small amount of acrylamide.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Organic
L. V. Pirutko, M. V. Parfenov, A. I. Lysikov, E. Yu. Gerasimov
Summary: Two procedures were suggested for preparing micro-mesoporous zeolite of MTT topology with improved textural characteristics, one involving hydrothermal crystallization and the other involving postsynthetic treatment with a NaOH solution. The samples obtained had crystal sizes of 100-200 nm and showed promising micropore and mesopore volumes.
PETROLEUM CHEMISTRY
(2021)
Article
Chemistry, Physical
Jiwen Si, Ruifeng Guo, Yan Zhang, Weikun Ning, Yanbin Sun, Wenqing Li, Shiding Miao
Summary: The Linde A-Type zeolite (LTA zeolite) was synthesized from ball clay through calcination and hydrothermal treatment. Ru-0 nanoparticles were in-situ fixed in the zeolite, resulting in excellent catalytic performance with high conversion and stability in the hydrogenation of benzene.
APPLIED CLAY SCIENCE
(2023)
Article
Chemistry, Physical
Angel Manuel Escamilla-Perez, Yves Barre, Agnes Grandjean, Audrey Hertz
Summary: This article describes the preparation and characterization of a new hierarchical zeolite-glass bead composite for safely extracting cationic radionuclides from nuclear wastewater and minimizing waste volumes. The experimental results demonstrate that this composite material improves the sorption efficiency for Sr2+ ions and can lead to greater waste volume reduction in industrial fixed-bed extraction systems.
JOURNAL OF SUPERCRITICAL FLUIDS
(2023)
Article
Chemistry, Physical
Tao Sun, Jiaxiang Wei, Chunyu Zhou, Yuanhui Wang, Zhu Shu, Jun Zhou, Jieyu Chen
Summary: By studying the effect of exchangeable cations on TiO2 photocatalysts supported by zeolite, it was found that the photocatalytic hydrogen evolution activity was significantly enhanced. The photocatalyst with Ca2+ cations showed the highest hydrogen evolution rate and exhibited higher solid-acid concentration and larger surface area, providing more proton sources and active sites for the reaction.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Fatemeh Amir Aslanzadeh Mamaghani, Amin Salem, Shiva Salem
Summary: The phase transformation of Ca-bentonite into zeolite LTA and hydroxysodalite was studied using fusion technique. Alkali fusion effectively eliminated opal CT and impurities, resulting in relatively pure powder, but zeolite structure depended on boehmite content. Cation exchange capacity of zeolite powders increased from 71 to 193 mg g(-1) with rising boehmite ratio from 0.40 to 0.53 due to formation of LTA structure. To achieve a cubic-shaped morphology, an alkali ratio of 1.67 was necessary, otherwise the precursor converted to hydroxysodalite or amorphous phase. The particles exhibited a mesoporous structure with a mean pore size of 6 nm, providing a specific surface area of about 27 m2 g(-1).
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Engineering, Environmental
Alexandra Rozhkovskaya, Jay Rajapakse, Graeme J. Millar
Summary: This study demonstrated the successful conversion of alum sludge from water treatment plants into high-quality zeolite LTA, with alkali fusion pre-treatment improving both yield and quality. The samples obtained through fusion pre-treatment exhibited comparable quality to commercial material. Different synthesis methods resulted in variations in impurity content and ion exchange capacity of the zeolite samples.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Enke Feng, Jingjing Li, Guangchao Zheng, Xue Li, Juanjuan Wei, Zhiqiang Wu, Xinxian Ma, Zhiming Yang
Summary: In this study, a conductive hydrogel with excellent mechanical properties, self-healing capability, multi-environment tolerance, and multiple stimuli-responsiveness was designed and prepared. It was successfully applied in strain sensors and shape memory materials, demonstrating outstanding performance in harsh environments.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Guangchao Zheng, Sulin Jiao, Wei Zhang, Shenli Wang, Qinghua Zhang, Lin Gu, Weixiang Ye, Junjun Li, Xiaochen Ren, Zhicheng Zhang, Kwok-yin Wong
Summary: Accurate research on the applications of chiral plasmonic metal nanoparticles with surface plasmon resonance (SPR) still face challenges. This study demonstrates the production of chiral plasmonic metal nanoparticles with tunable chiroptical activities. The results show that the chiral properties can be precisely tailored by adjusting the longitudinal SPR (LSPR) and the amount of gold nanorods as seeds. The functionalization of a shell of another metal or semiconductor can also achieve a shift of the chiral properties within the UV-vis-NIR region. Chirality transfer from the gold core to the silver shell leads to new chiral properties in the near-UV region.
Article
Chemistry, Multidisciplinary
Sulin Jiao, Yixin Liu, Shenli Wang, Shuo Wang, Fengying Ma, Huiyu Yuan, Haibo Zhou, Guangchao Zheng, Yuan Zhang, Kun Dai, Chuntai Liu
Summary: In this study, paper-based SERS substrates were fabricated by assembling silver nanoplates on cellulose filter papers. The results demonstrated that this substrate enables ultra-sensitive detection of pollutants, and could be of great practical significance.
Article
Chemistry, Physical
Yuan Zhang, Luxia Wang, Guangchao Zheng, Siyuan Lyu, Yao Zhang, Kainan Chang
Summary: In this article, a semiclassical theory is proposed to study subnanometer resolved fluorescence imaging of single molecules inside a plasmonic picocavity. The theory combines macroscopic quantum electrodynamics and open quantum system theories. Classical electromagnetic simulation and time-dependent density functional theory calculations are used to simulate the formation of the picocavity and predict Rabi oscillation dynamics and Mollow triplets spectrum. The study highlights the potential of coherently manipulating molecular states and exploring quantum optical phenomena using plasmonic picocavities.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Bing Ni, Mikhail Mychinko, Sergio Gomez-Grana, Jordi Morales-Vidal, Manuel Obelleiro-Liz, Wouter Heyvaert, David Vila-Liarte, Xiaolu Zhuo, Wiebke Albrecht, Guangchao Zheng, Guillermo Gonzalez-Rubio, Jose M. Taboada, Fernando Obelleiro, Nuria Lopez, Jorge Perez-Juste, Isabel Pastoriza-Santos, Helmut Coelfen, Sara Bals, Luis M. Liz-Marzan
Summary: A chiral growth method using cysteine as a dissymmetry inducer was developed to prepare gold nanorods with twisted morphology. Electron microscopy analysis suggests that the dissymmetry is caused by the development of chiral facets on the initial nanorods, resulting in a twisted shape. Cysteine plays a crucial role in assisting the enantioselective facet evolution, leading to the formation of highly chiral morphology with significant plasmonic optical activity.
ADVANCED MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Guangchao Zheng, Wei Gao, Xue Li, Zhiqiang Wu, Lin-An Cao, Enke Feng, Zhiming Yang
Summary: A versatile organohydrogel based on a binary solvent system is designed and prepared, showing superior properties for developing future advanced soft electronics.
Article
Chemistry, Physical
Enke Feng, Guangchao Zheng, Xue Li, Mengzhen Zhang, Xiaoqin Li, Xinning Han, Linan Cao, Zhiqiang Wu
Summary: This study introduces PEDOT:PSS and ZB into the PAA network to construct a multipurpose hydrogel with excellent stretchability, tensile strength, freeze-tolerance, and solvent-resistant capability. Based on this hydrogel, a strain sensor with multi-environmental stability is fabricated, which can accurately monitor human motions and mechanical deformations in various solvent media and harsh climatic condition. Additionally, a flexible tube-shaped hydrogel is developed for liquid transportation.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Materials Science, Multidisciplinary
Miao-Miao Liu, Guang-Chao Zheng, Yang Wei, Dan Tian, Qing-Bo Zheng, Ling Huang, Juan Xie
Summary: Impurity doping can not only enhance the properties of nanomaterials but also affect the growth and nucleation of nanocrystals. In this study, Y3+ and Sc3+ ions were utilized to manipulate the shape, size, and luminescence properties of Na3ScF6:Yb/Er and NaYF4:Yb/Er samples. The doping of Y3+ led to a change in the shape and size of Na3ScF6:Yb/Er nanoparticles, while the co-existence of Na3ScF6:Yb/Er and NaYF4:Yb/Er nanoparticles was observed during Y3+ doping. Both Y3+ and Sc3+ doping enhanced the upconversion luminescence intensity, and a possible mechanism was proposed based on the crystal structure. Finally, the details of the upconversion luminescence were revealed.
Review
Chemistry, Multidisciplinary
Jiaqi Chen, Xiaoyang Liu, Guangchao Zheng, Wei Feng, Pan Wang, Jian Gao, Jianbo Liu, Mingzhe Wang, Qingyuan Wang
Summary: Glucose monitoring is crucial for evaluating glucose metabolism disorders. Noble metal nanozymes (NMNZs) are widely used due to their excellent properties. This review summarizes the chemical mechanism of NMNZs with glucose oxidase and peroxidase mimicking activities, and presents detailed strategies for regulating their enzyme-like activities. It also describes the design of NMNZs with enantioselective recognition of D-glucose and L-glucose. The review concludes with discussions on potential solutions to existing challenges and future development possibilities.
Article
Chemistry, Multidisciplinary
Xing Liu, Yanli Du, Shenli Wang, Yu Huang, Yongzhi Tian, Daniel Garcia-Lojo, Ignacio Perez-Juste, Jorge Perez-Juste, Isabel Pastoriza-Santos, Guangchao Zheng
Summary: This article investigates the synthesis of chiral cobalt oxide nanoparticles mediated by histidine and discovers their unique and tunable chiroptical properties. The analysis indicates that the ratio of Co2+/Co3+ and their interactions with the imidazole groups of histidine are behind their chiral properties. Furthermore, the study demonstrates the use of chiral cobalt oxide nanoparticles for the development of sensitive and enantioselective circular dichroism-based sensors.
Review
Materials Science, Multidisciplinary
Xing Liu, Yanli Du, Stefanos Mourdikoudis, Guangchao Zheng, Kwok-Yin Wong
Summary: This review summarizes recent research works on the synthesis, properties, and applications of chiral magnetic oxide nanomaterials (CMONs), which combine the beneficial effects of chirality and magnetism in a single unit. The simultaneous presence of magnetic properties, catalytic activity, biocompatibility and optical activity, or magneto-optical effects, makes CMONs widely applicable in biomedical, optical, and electronic devices as well as in catalysis and sensing.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Jia-Qi Chen, Han-Bo Li, Xi Lu, Xiao-Yang Liu, Wei Feng, Pan Wang, Jian-Qiang Zhao, Zhen-Yu Zhu, Guang-Chao Zheng, Xiao-Chun Wu
Summary: This study demonstrates the synthesis of plasmonic nanoparticles (PNPs) with enhanced gap-enhanced Raman scattering (GERS) and plasmonic circular dichroism (PCD) signals. By modulating the growth process with thiol molecules, the researchers were able to achieve synergistic enhancement of GERS and PCD signals. The combination of 4-aminophenol and cysteine played roles as Raman reporter and chiral stimulus, respectively. The concentration of these molecules controlled the GERS and PCD signals, and also influenced the morphology of the PNPs.
Article
Materials Science, Multidisciplinary
Xuan-Ming Shen, Yuan Zhang, Shunping Zhang, Yao Zhang, Qiu-Shi Meng, Guangchao Zheng, Siyuan Lv, Luxia Wang, Roberto A. Boto, Chongxin Shan, Javier Aizpurua
Summary: In this paper, we develop a quantum master-equation theory to study the optomechanical effects in surface-enhanced resonant Raman scattering (SERRS) from a single molecule in a nanoparticle on mirror (NPoM) nanocavity. We use electromagnetic simulations and time-dependent density functional theory calculations to supplement the theory and study the SERRS of a methylene blue molecule in a realistic NPoM nanocavity. The simulations allow us to identify conditions for conventional optomechanical effects and discover distinct behaviors in SERRS.
Article
Materials Science, Multidisciplinary
Jia-Qi Chen, Han-Bo Li, Xi Lu, Xiao-Yang Liu, Wei Feng, Pan Wang, Jian-Qiang Zhao, Zhen-Yu Zhu, Guang-Chao Zheng, Xiao-Chun Wu
Summary: A synthetic guideline to obtain PNPs with synergistically enhanced GERS and PCD signals through two-thiols-modulated growth has been demonstrated. These PNPs have potential applications in enantiomeric recognition, cancer therapy, and activation of the immune system.
Review
Chemistry, Physical
Stefanos Mourdikoudis, Melita Menelaou, Nadesh Fiuza-Maneiro, Guangchao Zheng, Shuangying Wei, Jorge Perez-Juste, Lakshminarayana Polavarapu, Zdenek Sofer
Summary: In recent decades, various colloidal chemical approaches have been developed to synthesize nanostructured materials in controlled manner. This review focuses on the role of oleic acid/oleylamine ligand pair in the chemical synthesis of nanoparticles, discussing how the binding strengths and modes of these ligands affect the size and shape of the nanoparticles.
NANOSCALE HORIZONS
(2022)
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)