نتایج جستجو برای: uio 66 nh2

تعداد نتایج: 72183  

2016
Jie Shen Gongping Liu Kang Huang Qianqian Li Kecheng Guan Yukai Li Wanqin Jin

Mixed matrix membranes containing metal-organic frameworks have attracted large attention owing to the combined advantages of high separation performance and easy processability. In this work, CO2-philic zirconium metal organic framework UiO-66 and UiO-66-NH2 nanocrystals were synthesized and embedded into polyether block amide (PEBA) polymer membranes for CO2 separation. It can be found that a...

2017
Weiwei Zhao Chaoyan Zhang Zengguang Yan Youya Zhou Jianrong Li Yabo Xie Liping Bai Lin Jiang Fasheng Li

UiO-66 analogues are good candidates as stationary phase in HPLC because of their chemical/thermal stability, large surface area, and two cage structures. Here, two UiO-66 analogues, UiO-66-NH2 and UiO-67, were synthesized and used as stationary phase in HPLC to evaluate their performance in the separation of substituted benzenes (SBs) and polycyclic aromatic hydrocarbons (PAHs). The results sh...

Journal: :The journal of physical chemistry. B 2014
Chaoxian Xiao Tian Wei Goh Kyle Brashler Yuchen Pei Zhiyong Guo Wenyu Huang

The interaction of guest Pt(II) ions with UiO-66-X (X = NH2, H, NO2, OMe, F) series metal-organic frameworks (MOFs) in aqueous solution was investigated using in situ X-ray absorption spectroscopy. All of these MOFs were found to be able to coordinate with Pt(II) ions. The Pt(II) ions in UiO-66-X MOFs generally coordinate with 1.6-2.4 Cl and 1.4-2.4 N or O atoms. We also studied the time evolut...

Journal: :Water 2021

Tetracyclines (TCs) are the most widely used antibiotics for prevention and treatment of livestock diseases, but they toxic to humans have frequently been detected in water bodies. In this study, physical chemical properties zirconium-based metal organic framework (MOF) UiO-66 its NH2-functionalized congener UiO-66-NH2 were investigated along with batch TC adsorption tests determine effect func...

Journal: :Chemical communications 2016
Zhizhi Gu Liyong Chen Binhua Duan Qiong Luo Jing Liu Chunying Duan

We have provided a small molecule-assisted heterogeneous nucleation of MOF route to successfully synthesize Au@UiO-66(NH2) heterostructures. UiO-66(NH2) with a localized electronic state that was characterized by C-AFM exhibited higher photocatalytic activity in the heterostructures via a plasmonic sensitization process.

Journal: :Energies 2021

Colloidal dye-sensitized photocatalysis is a promising route toward efficient solar fuel production by merging properties of catalysis, support, light absorption, and electron mediation in one. Metal-organic frameworks (MOFs) are host materials with modular building principles allowing scaffold property tailoring. Herein, we combine these two fields compare porous Zr-based MOFs UiO-66-NH2(Zr) U...

Journal: :Catalysts 2023

Cr(VI) is one of the most toxic heavy metals, posing multiple threats to humans and ecosystems. Photoreduction para-toxic Cr(III) effective ways remove metal chromium but still challenging. Herein, Ti3C2/UiO-66-NH2 composites with different ratio Ti3C2 were synthesized via an in situ solvothermal process used for enhanced photocatalytic removal first time. The UiO-66-NH2 nanoparticles dispersed...

Journal: :Chemical communications 2014
Jordi Aguilera-Sigalat Darren Bradshaw

We report for the first time the pH-dependent fluorescence of UiO-66-NH2 across the wide range from 1 to 9. By application of a post-synthetic modification (PSM) diazotisation strategy, we synthesized a new material, UiO-66-N=N-ind, which shows increased chemical stability and enhanced sensing up to pH 12.

Journal: :Physical chemistry chemical physics : PCCP 2015
Lijuan Shen Ruowen Liang Mingbu Luo Fenfen Jing Ling Wu

UiO-66-X (X = H, NH2, NO2, Br) have been successfully synthesized and tested for their photocatalytic activity in water treatment. Results show that electronic effect of the ligand substituents greatly affects the photocatalytic activity of UiO-66. The rates obtained by different substituents are linearly correlated with their Hammett coefficients.

Journal: :Molecular Simulation 2021

Light hydrocarbon gases, such as methane, ethane, propane, ethylene, and propene, are commonly used in manufacturing processes raw material or energy fuel. Traditionally, these gases mainly separated by cryogenic distillation, which requires massive amounts of because high-pressure low-temperature operating conditions. Many studies have shown that metal–organic frameworks (MOFs) potential mater...

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