Article
Chemistry, Physical
Madhappan Santhamoorthy, Kokila Thirupathi, Thirukumaran Periyasamy, Dinakaran Thirumalai, Vanaraj Ramkumar, ShakilaParveen Asrafali, Seong-Cheol Kim
Summary: A mesoporous organosilica hybrid integrated with disulfide and amine groups was synthesized, which showed high adsorption capacity and recyclability.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Applied
Marta Bordonhos, Mirtha Lourenco, Jose R. B. Gomes, Paula Ferreira, Moises L. Pinto
Summary: The study investigates the application of periodic mesoporous organosilica materials in ethylene and ethane adsorption for the first time. Results show that the materials tend to be more selective towards ethylene, with silylated materials exhibiting higher affinity towards ethane. Additionally, samples functionalized with primary amines show better selectivity towards ethylene.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Engineering, Chemical
Hao Li, Danqing Shen, Huiling Lu, Fan Wu, Xueping Chen, Roser Pleixats, Jianming Pan
Summary: The article discusses the significance of Periodic Mesoporous Organosilica materials and their advantages in various fields, emphasizing their potential in detecting and recovering heavy metal ions effectively. It also stresses the urgent need to address the harm caused by heavy metal pollution to the environment and human health.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Omid Pourshiani, Babak Karimi, Hesamodin Moradi, Werner R. R. Thiel, Hojatollah Vali, Pietro Mastrorilli, Stefano Todisco
Summary: The catalytic activity of several supported catalysts with perruthenate anions in mesochannels of plugged and unplugged bifunctional periodic mesoporous organosilicas (Ru@BFPMOs) in the aerobic oxidation of alcohols was investigated. The morphology and structure of the materials were characterized, and it was found that all materials have a 2D-hexagonal symmetry structure. The resulting catalyst showed high efficiency in the oxidation of a wide variety of alcohols.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Majid Vafaeezadeh, Kristin Weber, Anna Demchenko, Philipp Losch, Paul Breuninger, Andrea Losch, Michael Kopnarski, Sergiy Antonyuk, Wolfgang Kleist, Werner R. Thiel
Summary: A new method for synthesizing a Janus periodic mesoporous organosilica material (JPMO) is introduced, where the material is capable of forming stable Pickering emulsions. This bifunctional material may find widespread applications in various fields related to material science and catalysis.
CHEMICAL COMMUNICATIONS
(2021)
Review
Materials Science, Multidisciplinary
Babak Karimi, Nasim Ganji, Omid Pourshiani, Werner R. Thiel
Summary: This article provides a comprehensive review of the recent advances in the synthesis, morphology, functionalities, and applications of periodic mesoporous organosilicas (PMOs), with a focus on developments after 2014. Special attention is given to a new family of PMOs, namely hollow spherical and hollow/yolk shell PMOs, which offer additional benefits compared to traditional PMOs.
PROGRESS IN MATERIALS SCIENCE
(2022)
Article
Chemistry, Analytical
Kobra Zavar Mousavi, Yadollah Yamini, Babak Karimi, Mohammad Mahdi Khataei, Mojtaba Khorasani, Shahram Seidi, Mostafa Ghaemmaghami
Summary: A sensitive SPME coating based on plugged BFPMO was developed for the extraction of chlorophenols in water and honey samples. The plugged BFPMO coating showed outstanding enrichment ability with low detection limits and good reproducibility. This method proved to be applicable for the determination of CPs in real water samples with high relative recoveries.
Article
Engineering, Environmental
Bruna Castanheira, Sergio Brochsztain, Larissa Otubo, Antonio Carlos S. C. Teixeira
Summary: In this study, PMONDI was used as a photocatalyst for the efficient degradation of antibiotics. Compared to traditional TiO2/SBA-15, PMONDI showed improved performance in terms of photodegradation and reusability. Analysis of the degradation products revealed two main pathways. Therefore, PMONDI materials have great potential as photocatalysts for the degradation of CECs and should be further explored.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Review
Chemistry, Analytical
Bei Liu, Hui Li, Kaijun Quan, Jia Chen, Hongdeng Qiu
Summary: This review article focuses on the application of periodic mesoporous organosilica (PMO) materials with organic functionalities in chromatographic separation, including packed columns and monolithic columns. The correlation between PMO chromatographic stationary phase compositions and chromatographic performance is discussed by summarizing the functional bridges, synthesis methods, and modification methods. The research directions for further development of a more highly efficient PMO chromatographic column are also outlined.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Wanlu Liu, Anna M. Kaczmarek, Karel Folens, Gijs Du Laing, Pascal Van der Voort, Rik Van Deun
Summary: Three Periodic Mesoporous Organosilica (PMO) materials were presented, including a pyridine dicarboxamide functionalized PMO (DPA-PMO) and two amine functionalized PMOs (Am-PMO and Am-ePMO). These materials show potential for near-infrared (NIR) luminescence applications.
DALTON TRANSACTIONS
(2021)
Article
Engineering, Environmental
Xin Cheng, Penghui Zhao, Mo Zhang, Shasha Wang, Mengshuai Liu, Fusheng Liu
Summary: The study introduces novel cyclotriphosphazene-based periodic mesoporous organosilicas (PMO-CPF) with high specific surface area and multifunctional structural features for efficient adsorption of CO2 and conversion of epoxides into carbonates. The optimal PMO-CPF-20 in combination with tetrabutylammonium iodide (TBAI) exhibited excellent catalytic performance for the cycloaddition of CO2 to propylene oxide, resulting in high propylene carbonate yield and selectivity under specific conditions.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Geun Wan Kim, Ji Won Ha
Summary: This paper investigates the structural and spectral changes of mesoporous silica-coated gold nanorods (AuNRs@mSiO2) during Hg-Au amalgamation. The silica shell suppresses the deformation of the AuNR cores, resulting in unchanged aspect ratio. The localized surface plasmon resonance (LSPR) wavelength peak of individual AuNRs@mSiO2 exhibits a blue shift and strong plasmon damping when exposed to Hg solutions. Additionally, the inward diffusion of Hg into the AuNR core causes a gradual red shift and narrowing of the LSPR peak.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Biochemical Research Methods
Yangyang Ren, Shuhua Han
Summary: A periodic mesoporous organosilica material with turn-on fluorescence enhancement for sensing Cu2+ was synthesized via a template-directed co-condensation method. The material showed high selectivity, recyclability, and stability, making it a promising chemical sensor for Cu2+.
JOURNAL OF FLUORESCENCE
(2023)
Article
Chemistry, Multidisciplinary
Quan Ouyang, Guangshe Li, Xin Zhang, Xu Zhao, Shilong Fu, Liping Li
Summary: This study reports a yolk-shell gradient-structured SiOx-based anode derived from periodic mesoporous organosilica spheres, which exhibits exceptional cycling stability and rate capability. The unique gradient structure and composition enhance the electrical conductivity of the SiOx anode, reduce side reactions, and provide void space for SiOx expansion, effectively mitigating the stress caused by volumetric effect.
Article
Chemistry, Applied
Bei Liu, Kaijun Quan, Xiaoming Yang, Jia Chen, Hongdeng Qiu
Summary: In this study, ethylene-bridged PMO core-shell particles with radially-oriented mesopores were prepared and showed improved separation performance after derivatization. These hybrid particles exhibited good mechanical strength and chemical stability, suggesting potential application in HPLC separation.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Chemistry, Analytical
Cigdem Ozer, Mustafa Imamoglu
Summary: This study investigated the removal of nickel(II) and lead(II) ions from aqueous solutions using pumpkin peel biochar prepared with sulfuric acid. The experimental results showed that the pH of the solution, contact time, dosage, and initial concentration of the metal ions significantly affected their removal. The pumpkin peel biochar exhibited high adsorption capacities for nickel(II) and lead(II) ions, with maximum monolayer adsorption capacities of 64.1 and 178.6 mg g(-1), respectively.
ANALYTICAL LETTERS
(2023)
Article
Chemistry, Analytical
Ali Gundogdu, Pinar Bozbeyoglu, Mustafa Imamoglu, Cemalettin Baltaci, Celal Duran, Volkan N. Bulut
Summary: A promising new activated carbon was produced from corncobs using boric acid-based chemical activation. This activated carbon showed good adsorption capacity for both organic pollutant methylene blue and inorganic pollutant cadmium ions. The adsorption mechanisms of these pollutants on the activated carbon were discussed, considering factors such as pH, thermodynamics, and regeneration parameters. The results showed that the adsorption of cadmium ions was affected by pH and primarily occurred through electrostatic interaction, while the adsorption of methylene blue was pH-independent and involved pi-pi dispersion forces and partial hydrogen bonding. The study also revealed that temperature had a positive effect on the adsorption of both pollutants. The activated carbon demonstrated high adsorption capacities for methylene blue and cadmium ions.
ANALYTICAL LETTERS
(2023)
Article
Chemistry, Analytical
Mustafa Imamoglu
Summary: A novel functionalized silica gel was successfully fabricated and utilized for flow-injection solid-phase extraction (FI-SPE) of Cu(II) ions in environmental water samples. By studying various practical factors, the FI-SPE method was optimized and successfully validated by the determination of Cu(II) in certified reference materials. The method was also successfully applied for Cu(II) determination in environmental water samples.
ANALYTICAL LETTERS
(2023)
Article
Chemistry, Applied
Lorena Gonzalez-Gomez, Jorge A. M. Pereira, Sonia Morante-Zarcero, Jose S. Camara, Isabel Sierra
Summary: A high throught methododology based on a green extraction technique, mu SPEed (R), followed by high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) has been proposed for the analysis of atropine and scopolamine in tea and herbal tea infusions. The method was validated and found to be effective and accurate.
Article
Biochemistry & Molecular Biology
Sergio Izcara, Rosa Perestrelo, Sonia Morante-Zarcero, Isabel Sierra, Jose S. Camara
Summary: This study aimed to establish the volatilomic fingerprint of six of the most consumed spices worldwide and unravel their potential health benefits. Analysis showed that different spices have distinct volatile profiles, which contribute to their aroma and health bioactive compounds. Principal component analysis and partial least-squares discriminant analysis successfully distinguished the investigated spices and identified key volatile organic metabolites for discrimination. Furthermore, some volatile organic metabolites were found to have a high influence on the spices' bioactive potential in preventing certain diseases.
Review
Chemistry, Analytical
Judith Ganan, Gonzalo Martinez-Garcia, Sonia Morante-Zarcero, Damian Perez-Quintanilla, Isabel Sierra
Summary: Alkaloids are widely found secondary metabolites in plants, many of which have significant biological activity and pharmacological applications. However, the potential adverse effects of alkaloids present in food, such as acute hepatotoxicity, genotoxicity, and neurological damage, raise concerns among consumers. Therefore, developing sensitive, selective, and convenient sensors for alkaloids screening is crucial. Electrochemical detection platforms, particularly those based on nanomaterials, have shown great potential as a cost-effective, efficient, eco-friendly, and easy-to-operate analytical approach for alkaloids detection in various applications.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Gema Casado-Hidalgo, Sonia Morante-Zarcero, Damian Perez-Quintanilla, Isabel Sierra
Summary: The aim of this study was to develop an efficient, fast, and environmentally friendly method to control the content of opium alkaloids (OAs) in food products containing poppy seeds. By optimizing the ultrasound-assisted extraction and solid phase extraction steps, the concentrations of OAs in the samples were successfully analyzed and detected.
MICROCHEMICAL JOURNAL
(2022)
Review
Chemistry, Multidisciplinary
Natalia Casado, Gema Casado-Hidalgo, Lorena Gonzalez-Gomez, Sonia Morante-Zarcero, Isabel Sierra
Summary: Pyrrolizidine alkaloids, tropane alkaloids, and opium alkaloids are natural plant toxins that are of great concern in food safety due to their presence in various foods and feeds. Despite recent legislation, the concentration levels of these toxins often exceed the maximum limits established by authorities. Moreover, the regulations primarily focus on raw materials and do not consider processed products. Therefore, it is crucial to assess the health risk associated with these alkaloids through diet. This review aims to provide insight into these alkaloids and their influence on content and stability during food processing and culinary preparation, highlighting the need for further research to understand their transformation and determine the exact risk exposure to the population.
APPLIED SCIENCES-BASEL
(2023)
Article
Food Science & Technology
Sergio Izcara, Rosa Perestrelo, Sonia Morante-Zarcero, Isabel Sierra, Jose S. Camara
Summary: Edible flowers have gained popularity in gourmet cuisine for their attractive colors, freshness, texture, and aromatic notes. They not only enhance the visual appeal of dishes but also contain phytochemical compounds that are beneficial to human health. This study analyzed the volatile metabolites of four different species of edible flowers used in gourmet dishes, revealing their chemical profiles and potential applications in various industries. The findings provide insights into the distinctive characteristics and bioactive properties of edible flowers.
Article
Food Science & Technology
Lorena Gonzalez-Gomez, Judith Ganan, Sonia Morante-Zarcero, Damian Perez-Quintanilla, Isabel Sierra
Summary: This study investigated the occurrence of atropine and scopolamine in 51 commercial spices purchased in Portugal and Spain. More than half of the samples (67%) were contaminated with one or both analytes. Fennel, cloves, and coriander showed the highest concentrations.
Article
Food Science & Technology
Lorena Gonzalez-Gomez, Sonia Morante-Zarcero, Jorge A. M. Pereira, Jose S. Camara, Isabel Sierra
Summary: This study analyzed 33 samples of tea and herbal tea infusions purchased in Spain and Portugal and found that 64% of the samples were contaminated with atropine and scopolamine. White and green teas were more contaminated compared to black and other herbal teas. Among the 21 contaminated samples, 15 had concentrations above the maximum limit set by the EU Commission Regulation (0.2 ng/mL) for liquid herbal infusions.
Article
Food Science & Technology
Begona Fernandez-Pintor, Natalia Casado, Sonia Morante-Zarcero, Isabel Sierra
Summary: Pyrrolizidine alkaloids (PAs) have attracted attention in food safety due to their potential health risk. Tea and herbal tea, as they can be contaminated with PAs-producing weeds, have been particularly highlighted. This study simulated the cross-contamination of chamomile tea samples with weeds to evaluate the effect of brewing on PA content. The results showed that PAs are stable compounds and the initial PA concentration strongly affects their thermal stability. Not all PAs are effectively transferred from dry material to the infusion during brewing, and the extraction efficiency may be influenced by the type of weed. The study emphasizes the importance of analyzing infusion samples to correctly assess the risk exposure of consumers to PAs.
Article
Chemistry, Applied
Gema Casado-Hidalgo, Sonia Morante-Zarcero, Damian Perez-Quintanilla, Isabel Sierra
Summary: There is a current trend to add seeds such as poppy seeds in yoghurts to enhance their nutrition. However, these seeds may be contaminated with opium alkaloids (OAs) which can be harmful to health. In this study, an analytical methodology was developed to detect OAs in commercial yoghurts and showed their presence but below the limit of quantification. The study also found that lactic fermentation and storage can lead to degradation of OAs in yoghurts.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(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)
