Article
Chemistry, Organic
Katsuhiko Moriyama, Masako Kuramochi, Seiji Tsuzuki, Kozo Fujii, Takeshi Morita
Summary: This study developed a novel nitroxyl-catalyzed bromoesterification of alkenes and achieved diastereoselective bromohydroxylation.
Article
Chemistry, Multidisciplinary
Yuzhu Ma, Kun Lan, Borui Xu, Li Xu, Linlin Duan, Mengli Liu, Liang Chen, Tiancong Zhao, Jun-Ye Zhang, Zirui Lv, Ahmed A. Elzatahry, Xiaomin Li, Dongyuan Zhao
Summary: A novel method for synthesizing streamlined mesoporous nanotadpoles has been reported in this study, which exhibit large inner cavities, high surface areas, and uniform mesopore sizes. By loading Fe3O4 into the nanoparticles, H2O2-driven mesoporous nanomotors with outstanding directionality and a diffusion coefficient of 8.15 μm(2) s(-1) can be designed.
Article
Chemistry, Physical
Agnes Malta-Lako, Fangyi Zhang, Ricardo Mendonca, Laszlo Poppe
Summary: Efforts in rational drug design are driving the pharmaceutical industry towards more complex molecules, where synthesis and production of new drugs can benefit from new reaction routes. By developing transaminase-catalyzed asymmetric synthesis, potential chiral drug scaffolds with saturated amine heterocycle backbones were successfully obtained with high enantiopurity and moderate-to-excellent yields.
Review
Chemistry, Multidisciplinary
Musa M. Musa
Summary: This review covers examples of synthesizing optically active alcohols using ADHs that exhibit anti-Prelog stereopreference, including both wild-type and engineered ADHs.
Article
Chemistry, Organic
Marina Garcia-Ramos, Ivan Lavandera
Summary: Transaminases have demonstrated the ability to catalyze the amination of α,α-difluorinated ketones, yielding β,β-difluoroamines with high yields and enantiomeric excess. This reaction can be quantitatively transformed by employing a small molar excess of the amine donor, and scaled up successfully.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2022)
Article
Chemistry, Physical
Xingyi Lyu, Xun Wu, Yuzi Liu, Wenyu Huang, Byeongdu Lee, Tao Li
Summary: The study systematically investigated two types of core-shell mesoporous silica nanoparticles with a platinum nanocatalyst using various characterization methods. The results showed that coating the platinum catalyst with a nanoporous layer can improve catalyst stability.
Article
Biochemistry & Molecular Biology
Zsuzsanna Feher, Dora Richter, Sandor Nagy, Peter Bagi, Zsolt Rapi, Andras Simon, Laszlo Drahos, Peter Huszthy, Peter Bako, Jozsef Kupai
Summary: This study synthesized six new phase-transfer organocatalysts with different chiral units and crown ethers of varying sizes to catalyze alpha-alkylation and Michael addition reactions, yielding alpha,alpha-disubstituted malonic ester derivatives with excellent yields up to 98%.
Article
Chemistry, Multidisciplinary
Dan Luo, Chen-Hui Liu, Yi-Bo Chen, San-Tai Wang, Wei-Hui Fang, Jian Zhang
Summary: The synthesis of heterometallic compounds with atomically precise control remains a challenging task. In this study, a stepwise and controlled method was developed for the accurate addition of second and third metals to homometallic aluminum macrocycles. The resulting heterometallic compounds exhibited excellent catalytic effects, especially when hetero-metals were added.
Article
Chemistry, Multidisciplinary
Yu-Yi Cheng, Wei-Sian Li, Hsyueh-Liang Wu
Summary: This paper introduces the development of new chiral bicyclo[2.2.1]heptadiene ligands for Rh-catalyzed asymmetric additions of various organoboron reagents to imine derivatives, leading to the formation of enantioenriched alpha-chiral amines. The transformation of the adducts into known natural products or molecules of pharmaceutical importance confirms the synthetic usefulness of this method.
Review
Chemistry, Inorganic & Nuclear
Kefeng Ping, Rohit Bhadoria, Pavel Starkov, Nadezda Kongi
Summary: M-N-C materials are versatile and potential catalysts in organic transformations. This review provides a comprehensive overview of their reactivity, synthesis methods, and discusses the challenges and potential research directions for improving their stability and performance.
COORDINATION CHEMISTRY REVIEWS
(2023)
Article
Chemistry, Applied
Achille Antenucci, Giovanni Ghigo, Davide Cassetta, Marco Alcibiade, Stefano Dughera
Summary: Chiral phosphoric acids (CPAs) and their salts have been widely used as privileged catalysts in asymmetric transformations. Previous efficient CPAs have relied on C-2 symmetry and axial chirality, with the only exception being TADDOL derivatives. In this study, we have designed and synthesized C-2 symmetric cycloglycerophosphates (cGPAs), which were applied in the addition of trimethylsilyl cyanide (TMSCN) to aldehydes and ketones. The corresponding cyanohydrins were obtained with yields between 77% and 99% and enantiomeric excesses between 84.2% and 99.5%, in 27 examples. A DFT computational model was also used to rationalize the reaction mechanism and stereochemical outcome.
ADVANCED SYNTHESIS & CATALYSIS
(2023)
Article
Chemistry, Physical
Farzeen Sakina, Carlos Fernandez-Ruiz, Jorge Bedia, Luisa Gomez-Sainero, Richard T. Baker
Summary: Ordered mesoporous carbon (OMC) was utilized as a support for palladium nanoparticles in catalysts for gas phase hydrodechlorination (HDC) of trichloromethane (TCM), showing excellent dispersion of fine Pd nanoparticles and high selectivity to higher hydrocarbons in two of the catalysts. However, the solid-liquid (SL) method resulted in larger particles and less uniform palladium distribution, leading to lower conversion, selectivity, and more severe catalyst deactivation at higher reaction temperatures.
Article
Chemistry, Applied
Danyu Wang, Zhe Li, Tian-Yi Luo, Michael B. Schmithorst, Sunghwan Park, Wenqian Xu, Yurun Miao, Kaivalya Gawande, Chaoyun Tang, Brandon C. Bukowski, Bradley F. Chmelka, Howard Fairbrother, Efrosini Kokkoli, Michael Tsapatsis
Summary: Adenosine triphosphate (ATP) and other nucleotides can be irreversibly bound to the metal-organic framework (MOF) MIL-101(Cr). Analysis suggests that ATP is bound to MIL-101(Cr) through the terminal phosphate group with Cr(III) of the framework. The MOF-supported nucleotides can function as stable and reusable enantioselective heterogeneous catalysts in the presence of Cu(II) ions.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Chemistry, Physical
Zhe Han, Chizhou Tang, Feng Sha, Shan Tang, Jijie Wang, Can Li
Summary: In this study, ZnO-ZrO2 solid solution catalysts with ordered mesoporous structure were prepared by the EISA method, showing better performance in CO2 hydrogenation to methanol compared to catalysts prepared by co-precipitation due to larger specific surface areas and more reaction sites.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Physical
Neha Antil, Naved Akhtar, Rajashree Newar, Wahida Begum, Ajay Kumar, Manav Chauhan, Kuntal Manna
Summary: The development of efficient and enantioselective heterogeneous catalysts based on abundant elements and inexpensive ligands is crucial for environmentally friendly and cost-effective production of optically active compounds. This study demonstrates the synthesis of chiral amino alcohol-functionalized metal-organic frameworks as highly enantioselective base-metal catalysts for asymmetric organic transformations.
Review
Chemistry, Multidisciplinary
Andree Iemhoff, Maurice Vennewald, Regina Palkovits
Summary: Heterogeneous single-site and single-atom catalysts are promising for combining the advantages of molecular catalysts and solid catalysts. Covalent triazine frameworks (CTFs) have been studied as support materials for coordinating and stabilizing metal species, serving as model systems for understanding the interactions between different metal species and the supports.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Chemistry, Multidisciplinary
Dafeng Yan, Chalachew Mebrahtu, Shuangyin Wang, Regina Palkovits
Summary: Renewable H-2 production by water electrolysis has received much attention, but the energy consumption of conventional water electrolysis is high. This review summarizes the latest findings on innovative electrochemical strategies for H-2 production, including the use of redox mediators and alternative anodic reactions. The study also presents electrochemical H-2 production at both the cathode and anode, as well as the challenges and prospects for future development.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Shenglu Lu, Yaxuan Jing, Shengchao Jia, Mohsen Shakouri, Yongfeng Hu, Xiaohui Liu, Yong Guo, Yanqin Wang
Summary: The influence of Ru chemical state on the positions of C-C bond cleavage was investigated. Positively charged Ru species were found to favor the hydrogenolysis of the internal C-secondary-C-secondary bond, inhibiting methane production. A Ru/CeO2-I catalyst with plenty of Ru delta+ species was designed and proved efficient for the hydrogenolysis of real waste polyethylene plastics. This work will guide catalyst design to enhance the selective production of liquid alkanes.
Article
Chemistry, Physical
Tao Tong, Mark Douthwaite, Lu Chen, Rebecca Engel, Matthew B. Conway, Wanjun Guo, Xin-Ping Wu, Xue-Qing Gong, Yanqin Wang, David J. Morgan, Thomas Davies, Christopher J. Kiely, Liwei Chen, Xi Liu, Graham J. Hutchings
Summary: The physicochemical properties of Pt/CeO2 catalysts were varied to investigate their impact on the hydrogen-borrowing amination of alcohols. It was found that the Pt precursor and CeO2 support properties strongly influenced catalytic performance. The most active catalyst exhibited linearly structured Pt species, which were more effective for the rate-determining step of cyclopentanol dehydrogenation compared to Pt clusters and nanoparticles. This study not only provides insights into desirable catalytic properties for hydrogen-borrowing amination but also has broader relevance to related fields.
Article
Chemistry, Physical
Marcelo Alves Favaro, Jin Yang, Daniel Ditz, Huseyin Kucukkececi, Mohammed H. Alkhurisi, Sebastian Bergwinkl, Arne Thomas, Elsje Alessandra Quadrelli, Regina Palkovits, Jerome Canivet, Florian M. Wisser
Summary: The ability to molecularly engineer materials is a powerful tool in improving heterogeneous catalysts. Porous organic polymers show promise as photocatalysts due to their high stability, excellent optoelectronic properties, and easy synthesis. This study presents a pyrene-based Covalent Triazine Framework (CTF) as an efficient photocatalyst for hydrogen evolution and carbon dioxide photoreduction, achieving significant production rates.
Article
Chemistry, Physical
Nina M. M. Sackers, Julia Nikodemus, Regina Palkovits, Philippe Sautet, Peter J. C. Hausoul
Summary: Despite previous kinetic studies, the mechanism of polyol hydrogenolysis on a Ru catalyst surface remains unclear. To gain insight into the mechanism, decomposition of methanol was investigated using a Ru/C catalyst and periodic DFT calculations on a Ru(0001) model surface. The results suggest that the surface is likely covered by hydrogen adsorbates during the experiments. On a clean Ru surface, a lower overall activation barrier is observed when fewer dehydrogenation steps occur before C-O bond cleavage in the substrate methanol. Transferring these findings to a hydrogen-saturated Ru surface, the pathway involving CH2O O-H formation and subsequent C-O cleavage is found to be the most favorable. This study highlights the significant influence of surface coverage on the activation barrier.
Article
Engineering, Environmental
Dongdong Chen, Abhishek Khetan, Huarong Lei, Valentina Rizzotto, Jia-Yue Yang, Jiuxing Jiang, Qiming Sun, Baoxiang Peng, Peirong Chen, Regina Palkovits, Daiqi Ye, Ulrich Simon
Summary: Reinforcing the dynamic motion of Cu sites in Cu-zeolites can significantly enhance the low-temperature reduction of NOx.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Shengchao Jia, Zupeng Chen, Yaxuan Jing, Yanqin Wang
Summary: The synthesis of primary amines through reductive/hydrogen-borrowing amination is of great importance in the chemical industry. This Perspective focuses on the challenge of balancing hydrogenations of primary imine versus Schiff base and ammonolysis versus hydrogenation of Schiff base in order to enhance catalytic performance. Insights into promoting the ammonolysis of Schiff base through understanding structure-activity relationships and reaction mechanisms are discussed, and future directions for research are provided.
Article
Chemistry, Multidisciplinary
Hao Zhou, Kepeng Song, Yong Guo, Xiaohui Liu, Yanqin Wang
Summary: In this study, the depolymerization of lignocellulosic biomass was achieved under mild conditions, producing lignin phenolic monomers with nearly theoretical yield. A new method for the demethoxylation of lignin oil to obtain 4-propylphenol was developed using the RuNi/NiAl2O4 catalyst and without exogenous hydrogen. The hint of hydrogen generated by water splitting on the Ni surface promoted the removal of methoxy groups. The formation of a Ru-NiOx interface improved the activation of C-O bonds. With optimized conditions, a high yield of 17.0 wt% 4-propylphenol was obtained from birch lignin oil. This strategy utilizes structural hydrogen in lignin oil for the production of 4-propylphenol, offering a promising approach for lignin oil upgrading.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Justus Kuemper, Jerome Meyers, Rebecca Sebers, Nils Kurig, Regina Palkovits
Summary: Acrylonitrile is an important industrial chemical produced by the SOHIO process using fossil resources. To achieve sustainable production, a new route using biogenic substrates and electrolysis is proposed. The electrochemical synthesis of green acrylonitrile using d,l-glutamic acid as a substrate is achieved through electro-oxidative decarboxylation and non-Kolbe electrolysis, resulting in a two-step process with a maximum yield of 41.1%.
Article
Chemistry, Physical
Ariel A. Schoenberger Alvarez, Can Oezyalcin, Tom Padeken, Peter Mauermann, Bastian Lehrheuer, Stefan Sterlepper, Ahed Abouserie, Maurice Vennewald, Ulrich Simon, Regina Palkovits, Stefan Pischinger
Summary: This study investigates the influence of the NO2/NOx ratio on the formaldehyde-related effects using a copper exchanged chabazite type zeolite production catalyst under close to real conditions. The results show that formaldehyde preferentially reacts with NH3 under the chosen reaction conditions, leading to the formation of an intermediate that may undergo either catalytic decomposition or thermal decomposition depending on the NO2/NOx ratio. The presence of formaldehyde improves the NOx conversion efficiency at high NO2 fractions but deteriorates it at small NO2/NOx fractions.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Nina M. Sackers, Andree Iemhoff, Philippe Sautet, Regina Palkovits
Summary: Computational methods were used to investigate well-defined and characterized isolated Ir sites anchored on a covalent triazine framework (CTF) as a showcase for experimentally accessible single-site catalysts. The resting states of the catalyst species after immobilization and after reduction at 400 ? were identified, and they were found not to be the catalytically active species but rather pre-catalysts for the dehydrogenation of formic acid.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Xi Ding, Yunfeng Yang, Zhaoyang Li, Peitao Huang, Xiaohui Liu, Yong Guo, Yanqin Wang
Summary: In this study, we successfully improved the activity and stability of nickel catalyst for dry reforming of methane (DRM) by introducing cerium into Ni/MgO catalyst. The doping of cerium enhanced the reducibility of NiOx species, reduced Ni particle size, and increased oxygen vacancies, leading to improved performance of the catalyst.
Article
Chemistry, Physical
Songlei Mo, Yong Guo, Xiaohui Liu, Yanqin Wang
Summary: The glycolysis of polyethylene terephthalate (PET) is considered the most promising PET recycling strategy. The study found that catalyst activity is positively correlated with acid amount, but species with strong oxygen affinity lower activity. Among several metal-doped catalysts, 4Ti/SBA-15 with abundant Lewis acid sites exhibits excellent PET glycolysis ability and stability, making it a potential catalyst for industrial application.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Bo Feng, Yong Guo, Xiaohui Liu, Yanqin Wang
Summary: A multi-phase hydrothermal treatment system was developed to transform PVC plastic waste into benzene. It was found that the addition of a good solvent for PVC and layered solid additives helped increase the benzene yield.
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)
