keyword
https://read.qxmd.com/read/38262931/a-controlled-release-aptasensor-utilizing-aie-active-mofs-as-high-efficiency-ecl-nanoprobe-for-the-sensitive-detection-of-adenosine-triphosphate
#21
JOURNAL ARTICLE
Jingshuai Li, Mengzhen Xi, Liuyong Hu, Hongcheng Sun, Chengzhou Zhu, Wenling Gu
Improving the sensitivity in electrochemiluminescence (ECL) detection systems necessitates the integration of robust ECL luminophores and efficient signal transduction. In this study, we report a novel ECL nanoprobe (Zr-MOF) that exhibits strong and stable emission by incorporating aggregation-induced emission ligands into Zr-based metal-organic frameworks (MOFs). Meanwhile, we designed a high-performance signal modulator through the implementation of a well-designed controlled release system with a self-on/off function...
January 23, 2024: Analytical Chemistry
https://read.qxmd.com/read/38253838/the-remediation-potential-and-kinetics-of-pb-2-adsorbed-by-the-organic-frameworks-of-cladophora-rupestris
#22
JOURNAL ARTICLE
Lu-Sheng Zhang, Xiao-Yu Feng, Chang-Fa Qiu, Ling-Sheng Li, Yu Sun, Xin-Yi Tao, Xin-Yue Li, Zhao-Wen Liu, De-Ju Cao
Cladophora rupestris is ubiquitous in many kinds of waterbodies, and C. rupestris biomass can serve as a carrier for adsorbing and transferring heavy metals. Batch experiments and characterization were performed. Results showed that the organic frameworks of C. rupestris (CROF) had a specific surface area of 2.58 m2 /g and an external surface area of 2.06 m2 /g. Many mesopores were present in CROF, mainly distributed in 2.5-7.5 nm. The zeta potentials were within the range of - 4.46 to - 13.98 mV in the tested pH of 2...
January 23, 2024: Environmental Science and Pollution Research International
https://read.qxmd.com/read/38230982/microwave-assisted-rapid-synthesis-of-mof-based-single-atom-ni-catalyst-for-co2-electroreduction-at-ampere-level-current
#23
JOURNAL ARTICLE
Ming Wen, Nana Sun, Long Jiao, Shuang-Quan Zang, Hai-Long Jiang
Carbon-based single-atom catalysts (SACs) have attracted tremendous interest in heterogeneous catalysis. However, the common electric heating techniques to produce carbon-based SACs usually suffer from prolonged heating time and tedious operations. Herein, a general and facile microwave-assisted rapid pyrolysis method is developed to afford carbon-based SACs within 3 min without inert gas protection. The obtained carbon-based SACs present high porosity and comparable carbonization degree to those obtained by electric heating techniques...
January 17, 2024: Angewandte Chemie
https://read.qxmd.com/read/38226630/pd-mn-nc-dual-single-atomic-sites-with-hollow-mesopores-for-the-highly-efficient-semihydrogenation-of-phenylacetylene
#24
JOURNAL ARTICLE
Huan Liu, Peng Zhu, Da Yang, Congkun Zhong, Jialu Li, Xiao Liang, Ligang Wang, Hang Yin, Dingsheng Wang, Yadong Li
The direct pyrolysis of metal-zeolite imidazolate frameworks (M-ZIFs) has been widely recognized as the predominant approach for synthesizing atomically dispersed metal-nitrogen-carbon single-atom catalysts (M/NC-SACs), which have exhibited exceptional activity and selectivity in the semihydrogenation of acetylene. However, due to weak adsorption of reactants on the single site and restricted molecular diffusion, the semihydrogenation of large organic molecules (e.g., phenylacetylene) was greatly limited for M/NC-SACs...
January 16, 2024: Journal of the American Chemical Society
https://read.qxmd.com/read/38213133/actual-amount-adsorbed-as-estimated-from-the-surface-excess-isotherm
#25
JOURNAL ARTICLE
Seishi Shimizu, Nobuyuki Matubayasi
The amount of adsorption at equilibrium is commonly used for reporting solid/solution isotherms, despite the admonishment by the International Union of Pure and Applied Chemistry (IUPAC) against equating the surface excess (i.e., the measurable quantity for sorption, signifying the competitive sorption of adsorbate and solvent) with the actual amount adsorbed. The consensus, more generally stated, is that the surface excess cannot be divided into individual isotherms for sorbate and solvent unless simplifying model assumptions are introduced...
January 11, 2024: Langmuir: the ACS Journal of Surfaces and Colloids
https://read.qxmd.com/read/38199524/pore-engineering-of-micro-mesoporous-nanomaterials-for-encapsulation-controlled-release-and-variegated-applications-of-essential-oils
#26
REVIEW
Xiaoyu Su, Biao Li, Shuiyan Chen, Xinmin Wang, Hao Song, Baode Shen, Qin Zheng, Ming Yang, Pengfei Yue
Essential oils have increasingly popular in fields of medical, food and agriculture, owing to their strongly antimicrobial, anti-inflammation and antioxidant effects, greatly meeting demand from consumers for healthy and safe natural products. However, the easy volatility and/or chemical instability of active ingredients of essential oils (EAIs) can result in the loss of activity before realizing their functions, which have greatly hindered the widely applications of EAIs. As an emerging trend, micro/mesoporous nanomaterials (MNs) have drawn great attention for encapsulation and controlled release of EAIs, owing to their tunable pore structural characteristics...
January 8, 2024: Journal of Controlled Release
https://read.qxmd.com/read/38190506/performance-of-mil-101-cr-and-mil-101-cr-pore-expanded-as-drug-carriers-for-ibuprofen-and-5-fluorouracil-delivery
#27
JOURNAL ARTICLE
Neila Pederneira, Peter O Aina, Ali A Rownaghi, Fateme Rezaei
Metal-organic frameworks (MOFs) have been extensively investigated as nanocarriers for drug delivery applications owing to their remarkable surface area and porosity, which allow for impregnation of large quantities of drugs with fast pharmacokinetics. In this work, we developed a pore-expanded version of MIL-101(Cr), MIL-101(Cr)-P, and assessed its potential as a carrier for ibuprofen and 5-fluorouracil drugs along with its regular MIL-101(Cr) analogue. The pore expansion strategy gave rise to a higher surface area and mesopore volume for MIL-101(Cr)-P relative to regular MIL-101(Cr)...
January 8, 2024: ACS Applied Bio Materials
https://read.qxmd.com/read/38178626/ultrarapid-and-sustainable-synthesis-of-trimetallic-based-mof-crnife-mof-from-stainless-steel-and-disodium-terephthalate-derived-pet-wastes
#28
JOURNAL ARTICLE
Khaireddin Boukayouht, Loubna Bazzi, Ayoub Daouli, Guillaume Maurin, Samir El Hankari
Designing easy and sustainable strategies for the synthesis of metal-organic frameworks (MOFs) from organic and inorganic wastes with the efficient removal of phosphate from water remains a challenge. The majority of the reported works have utilized costly precursors and nonsoluble ligands for the synthesis of MOFs. Herein, we have developed a low-cost, simple, and sustainable alternative approach using the coprecipitation method in water at room temperature for the synthesis of a new adsorbent-based trimetallic MOF...
January 4, 2024: ACS Applied Materials & Interfaces
https://read.qxmd.com/read/38163922/ordered-mesoporous-crystalline-frameworks-toward-promising-energy-applications
#29
REVIEW
Jialong Li, Rongyao Li, Wendi Wang, Kun Lan, Dongyuan Zhao
Ordered mesoporous crystalline frameworks (MCFs), which possess both functional frameworks and well-defined porosity, receive considerable attention because of their unique properties including high surface areas, large pore sizes, tailored porous structures, and compositions. Construction of novel crystalline mesoporous architectures that allows for rich accessible active sites and efficient mass transfer is envisaged to offer ample opportunities for potential energy-related applications. In this review, the rational synthesis, unique structures, and energy applications of MCFs are the main focus...
January 1, 2024: Advanced Materials
https://read.qxmd.com/read/38163467/waste-polyethylene-terephthalate-plastic-derived-zr-mof-for-high-performance-supercapacitor-applications
#30
JOURNAL ARTICLE
Abdullah M Al-Enizi, Ayman Nafady, Nouf B Alanazi, Meera Moydeen Abdulhameed, Shoyebmohamad F Shaikh
The chemical conversion of plastic waste into metal-organic framework (MOF) materials has emerged as a significant research field in addressing issues associated to the environment and the economy. The significant advantages of MOFs as electrode material for energy/supercapacitors arises from their extensive surface area and notable porosity. The present study involved the synthesis of Zirconium-Metal Organic Frameworks (Zr-MOF) by the solvothermal method, utilizing plastic waste in the form of Polyethylene terephthalate (PET) bottles...
December 30, 2023: Chemosphere
https://read.qxmd.com/read/38143244/highly-ordered-hierarchical-macro-mesoporous-carbon-supported-cobalt-electrocatalyst-for-efficient-oxygen-evolution-reaction
#31
JOURNAL ARTICLE
Lanke Luo, Jingshen Xu, Qiuhong Wan, Yiting Han, Mingxuan Li, Dingwei Cui, Runxuan Chen, Zhangrong Tang, Xinjun Cui, Xin Xin, Xinchang Li, Yulu Xiang, Haohai Dong, Liu Lin, Zemin Sun, Genban Sun
Metal-organic frameworks (MOFs) and their derivatives have been extensively employed in Oxygen Evolution Reaction (OER) catalysts due to their significantly larger specific surface areas, distinct metal centers, and well-organized porous structures. However, the microporous structure of MOFs and their derivatives presents mass transfer resistance, limiting their further development. Drawing inspiration from hierarchical structures allowing for the transport and exchange of substances in the biological world, we designed and fabricated biomimetic layered porous structures within ZIF-67 and its derivatives...
December 24, 2023: Chemistry, An Asian Journal
https://read.qxmd.com/read/38129402/solvent-pair-surfactants-enabled-assembly-of-clusters-and-copolymers-towards-programmed-mesoporous-metal-oxides
#32
JOURNAL ARTICLE
Wenhe Xie, Yuan Ren, Fengluan Jiang, Xin-Yu Huang, Bingjie Yu, Jianhong Liu, Jichun Li, Keyu Chen, Yidong Zou, Bingwen Hu, Yonghui Deng
Organic-inorganic molecular assembly has led to numerous nano/mesostructured materials with fantastic properties, but it is dependent on and limited to the direct interaction between host organic structure-directing molecules and guest inorganic species. Here, we report a "solvent-pair surfactants" enabled assembly (SPEA) method to achieve a general synthesis of mesostructured materials requiring no direct host-guest interaction. Taking the synthesis of mesoporous metal oxides as an example, the dimethylformamide/water solvent pairs behave as surfactants and induce the formation of mesostructured polyoxometalates/copolymers nanocomposites, which can be converted into metal oxides...
December 21, 2023: Nature Communications
https://read.qxmd.com/read/38126913/hierarchically-micro-and-mesoporous-zeolitic-imidazolate-frameworks-through-selective-ligand-removal
#33
JOURNAL ARTICLE
Zheao Huang, Jakob Rath, Qiancheng Zhou, Alexey Cherevan, Shaghayegh Naghdi, Dominik Eder
A new method to engineer hierarchically porous zeolitic imidazolate frameworks (ZIFs) through selective ligand removal (SeLiRe) is presented. This innovative approach involves crafting mixed-ligand ZIFs (ML-ZIFs) with varying proportions of 2-aminobenzimidazole (NH2 -bIm) and 2-methylimidazole (2-mIm), followed by controlled thermal treatments. This process creates a dual-pore system, incorporating both micropores and additional mesopores, suggesting selective cleavage of metal-ligand coordination bonds. Achieving this delicate balance requires adjustment of heating conditions for each mixed-ligand ratio, enabling the targeted removal of NH2 -bIm from a variety of ML-ZIFs while preserving their inherent microporous framework...
December 21, 2023: Small
https://read.qxmd.com/read/38113729/-needle-hidden-in-silk-floss-inactivation-effect-and-mechanism-of-melamine-sponge-loaded-bismuth-oxide-composite-copper-metal-organic-framework-ms-bi-2-o-3-cu-mof-as-floating-photocatalyst-on-microcystis-aeruginosa
#34
JOURNAL ARTICLE
Mengjiao Wang, Junfeng Chen, Yushan Wei, Lijun Hu, Yuling Xu, Yanyan Liu, Renjun Wang
Photocatalytic technology showed significant potential for addressing the issue of cyanobacterial blooms resulting from eutrophication in bodies of water. However, the traditional powder materials were easy to agglomerate and settle, which led to the decrease of photocatalytic activity. The emergence of floating photocatalyst was important for the practical application of controlling harmful algal blooms. This study was based on the efficient powder photocatalyst bismuth oxide composite copper-metal organic framework (Bi2 O3 @Cu-MOF), which was successfully loaded onto melamine sponge (MS) by sodium alginate immobilization to prepare a floating photocatalyst MS/Bi2 O3 @Cu-MOF for the inactivation of Microcystis aeruginosa (M...
December 15, 2023: Journal of Hazardous Materials
https://read.qxmd.com/read/38113540/hierarchically-porous-amino-functionalized-nanomof-network-anchored-phosphomolybdic-acid-for-oxidative-desulfurization-and-shaping-application
#35
JOURNAL ARTICLE
Hongjian Xu, Lu Wu, Xinyu Zhao, Shujie Yang, Yao Yao, Chao Liu, Ganggang Chang, Xiaoyu Yang
The applications of hierarchically porous metal-organic frameworks (HP-MOFs) against traditional microporous counterparts for oxidative desulfurization (ODS) have triggered wide research interests due to their highly exposed accessible active sites and fast mass transfer of substrate molecules, particularly for the large-sized refractory sulfur compounds. Herein, a series of hierarchically porous amino-functionalized Zr-MOFs (HP-UiO-66-NH2 -X) network with controllable mesopore sizes (3.5-9.2 nm) were firstly prepared through a template-free method, which were further utilized as anchoring support to bind the active phosphomolybdic acid (PMA) via the strong host-guest interaction to catalyze the ODS reaction...
December 13, 2023: Journal of Colloid and Interface Science
https://read.qxmd.com/read/38112876/graphene-oxide-dispersed-mesoporous-zif-8-encapsulated-laccase-for-removal-of-toluidine-blue-with-multiple-enhanced-stability
#36
JOURNAL ARTICLE
Fang Yuan, Shengran Jia, Dingfan Yan, Xiaokuan Zhang, Jinbo Zhang, Ting Xia
The extensive use and discharge of toluidine blue have caused serious problems to the water environment. As a green biocatalyst, laccase has the ability to decolorize the dyes, but it is limited by poor reusability and low stability. Metal-organic frameworks (MOFs) are a good platform for enzyme immobilization. However, due to the weak dispersion of MOFs, the enzyme activity is inevitably inhibited. Herein, we proposed to use graphene oxide (GO) as the dispersion medium of mesoporous ZIF-8 to construct MZIF-8/GO bi-carrier for laccase (FL) immobilization...
December 19, 2023: Environmental Science and Pollution Research International
https://read.qxmd.com/read/38109694/truxene-to-fluorenone-energy-transfer-in-a-robust-mesoporous-zn-mof
#37
JOURNAL ARTICLE
Léo Boivin, Adrien Schlachter, Daniel Fortin, Pierre D Harvey
A new metal-organic framework (MOF; [Zn4 O( hett )4/3 ( fluo )1/2 ( bdc )1/2 ] n ; TFT-MOF ) constructed on chromophoric ligands 5,5',10,10',15,15'-hexaethyltruxene-2,7,12-triacetate ( hett ), 9-fluorenone-2,7-dicarboxylate ( fluo ), terephthalate ( bdc ), and the Zn4 O node has been prepared and identified by powder X-ray diffraction. This luminescent MOF exhibits large mesoporous pores of 2.7 nm based on computer modeling using density functional theory (DFT) calculations. The steady-state and time-resolved fluorescence spectra and photophysical parameters of TFT-MOF have been investigated and compared with those of the free ligands and their basic chromophores...
December 18, 2023: Inorganic Chemistry
https://read.qxmd.com/read/38109311/liquid-metal-interfacial-engineering-strategy-to-synthesize-all-carbon-linked-porous-aromatic-frameworks-for-the-cycloaddition-of-co-2-with-epoxides
#38
JOURNAL ARTICLE
Wenting Zhang, Yue Li, Yuyang Tian, Duihai Tang, Zhen Zhao
This study explores the room-temperature synthesis of porous materials and the immobilization of CO2 without the use of metals. The porous aromatic frameworks synthesized at room temperature retain the important functional group structure, and the abundance of carbon-chlorine bonds creates an excellent environment for imidazole linkage. Consequently, a catalyst conducive to the cycloaddition of carbon dioxide is obtained. Hexachloro- p -xylene is explored as the precursor, and a catalyst conducive to carbon dioxide cycloaddition is obtained...
December 18, 2023: ACS Applied Materials & Interfaces
https://read.qxmd.com/read/38101673/porous-carbon-with-the-synergistic-effect-of-cellulose-fibers-and-mofs-as-the-anode-for-high-performance-li-ion-batteries
#39
JOURNAL ARTICLE
Chaoqun Zhang, Qi He, Wenbin Luo, Jian Du, Yehan Tao, Jie Lu, Yi Cheng, Haisong Wang
The commercial graphene for Li ion batteries (LIBs) has high cost and low capacity. Therefore, it is necessary to develop a novel carbon anode. The cellulose nanowires (CNWs), which has advantages of low cost, high carbon content, is thought as a good carbon precursor. However, direct carbonization of CNWs leads to low surface area and less mesopores due to its easy aggregation. Herein, the metal-organic frameworks (MOFs) have been explored as templates to prepare porous carbon due to their 3D open pore structures...
December 13, 2023: International Journal of Biological Macromolecules
https://read.qxmd.com/read/38088497/zr-porphyrin-metal-organic-framework-as-nanoreactor-for-boosting-the-formation-of-hydrogen-clathrates
#40
JOURNAL ARTICLE
Carolina Carrillo Carrión, Judit Farrando-Perez, Luke Daemen, Yongqiang Chen, Anibal J Ramirez-Cuesta, Joaquin Silvestre-Albero
We report the first experimental evidence for rapid formation of hydrogen clathrates under mild pressure and temperature conditions within the cavities of a zirconium-metalloporphyrin framework, specifically PCN-222. PCN-222 has been selected for its 1D mesoporous channels, high water-stability, and proper hydrophilic behavior. Firstly, we optimize a microwave (MW)-assisted method for the synthesis of nanosized PCN-222 particles with precise structure control (exceptional homogeneity in morphology and crystalline phase purity), taking advantage of MW in terms of rapid/homogeneous heating, time and energy savings, as well as potential scalability of the synthetic method...
December 13, 2023: Angewandte Chemie
keyword
keyword
160101
2
3
Fetch more papers »
Fetching more papers... Fetching...
Remove bar
Read by QxMD icon Read
×

Save your favorite articles in one place with a free QxMD account.

×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"

We want to hear from doctors like you!

Take a second to answer a survey question.