Article
Engineering, Environmental
Wei Xie, Zheyi Sun, Zijun Bian, Honglai Liu, Jun Hu
Summary: Constructing open metal sites with higher valence state in bimetallic organic frameworks of MIL-47(xV/Cr)-Brs enhances the adsorption performance for deep removal of thiophene-based sulfurs from oil. The synergistic effect of enhanced Metal-S and pi-pi interactions, as well as the H-Bond between mu 2-OH and S of thiophene, improves the desulfurization performance, resulting in excellent capacity of 256 mgS g-1 and high selectivity of thiophene/aromatics. This bimetallic MOF shows superior capacity even in harsh operation conditions and demonstrates potential for adsorptive desulfurization in practical applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Shu Shi, Yu-Xia Li, Shuai-Shuai Li, Xiao-Qin Liu, Lin-Bing Sun
Summary: Cu+-containing materials have promising applications in adsorption and catalysis. A mild and controllable approach for Cu+ site fabrication has been a challenge. This study presents a novel double-solvent strategy for Cu+ site fabrication in MIL-101(Cr). The resulting Cu+-modified MIL-101(Cr) exhibits good desulfurization performance.
GREEN ENERGY & ENVIRONMENT
(2022)
Article
Chemistry, Inorganic & Nuclear
Yu-Xia Li, Shuai-Shuai Li, Xiao-Qin Liu, Lin-Bing Sun
Summary: In this study, the metal-organic framework MIL-101(Cr) was chosen as a porous support for preparing Cu(I) sites using a double-solvent method. This method allowed for the maintenance of the support material's structure and the reduction of all copper species to Cu(I) within MIL-101(Cr). The resulting materials exhibited enhanced desulfurization performance due to the specific interaction between Cu(I) and thiophenic sulfur compounds, offering a useful and green approach in facile conditions.
CHINESE JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Yu Xiang Liu, Qiao Jing Lin, Fei Fei Dai, Yan Xue Xue, Ding Ling Gao, Jian Hua Chen, Wei Wei Lin, Qian Yang
Summary: In this study, Cu+ and phosphotungstic acid (PTA) were introduced into Co-MOF to prepare Co-MOF-Cu+/PTA through post-modification method. The Co-MOF-Cu+/PTA showed significantly enhanced adsorption capacity for dibenzothiophene (DBT) compared to Co-MOF. The introduction of Cu+ served as active sites for pi-pi interaction and sulfur-metal (S-M) adsorption, while Co2+ and PTA adsorbed DBT through acid-base interaction. The Co-MOF-Cu+/PTA exhibited spontaneous and endothermic adsorption behavior, with excellent selectivity and regeneration performance.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Lulu Qu, Xiaoquan Feng, Limin Ma, Yang Wang, Seik Weng Ng, Guang Yang
Summary: The structure of acidic copper(I) 4-nitro-3,5-bis(trifluoromethyl)pyrazolate (Cu(3)pz(3)) and its adducts with thiophenic compounds were characterized. Cu(3)pz(3) can be used as an efficient model compound for metal-promoted adsorptive desulfurization.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Engineering, Environmental
Md. Mahmudul Hassan Mondol, Sung Hwa Jhung
Summary: The review discusses the use of metal-organic frameworks for removing pesticides from aqueous solutions to alleviate environmental pollution. It highlights the importance of this method and suggests future research directions in the field.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Biochemistry & Molecular Biology
Xiaowei Wang, Yingjie Zhao, Yiqi Sun, Dahuan Liu
Summary: In this study, Cu-doped ZIF-8 was synthesized and used for the removal of ofloxacin from water. The Cu-ZIF-8 showed excellent adsorption performance with over 90% removal efficiency. The study revealed the important roles of electrostatic interaction and complexation in the adsorption process.
Article
Chemistry, Physical
Yu -Yang Gu, Guoliang Liu, Shi-Chao Qi, Chen Gu, Tao Yang, Xiao-Qin Liu, Lin -Bing Sun
Summary: In this study, we prepared photo-switchable metal-organic frameworks decorated with Cu2O active sites, showing controllable guest capture. The obtained PMOFs exhibited higher adsorption capacity due to strong interaction with guest molecules. The azobenzene moieties in the PMOFs could freely switch between trans and cis isomerization upon light irradiation, leading to controlled exposure and shelter of the active sites for tailored guest capture.
Article
Chemistry, Physical
Yu -Yang Gu, Guoliang Liu, Shi-Chao Qi, Chen Gu, Tao Yang, Xiao-Qin Liu, Lin -Bing Sun
Summary: For the first time, PMOFs decorated with Cu2O active sites and functionalized with azobenzene have been prepared, allowing for controllable adsorption of benzothiophene through light regulation.
Article
Engineering, Environmental
Peidong Su, Chunhui Zhang, Yu Liu, Junke Zhang, Ridha Djellabi, Rui Wang, Junqiang Guo, Rui Zhang, Hongwei Guo, Xiang Ding, Xinyue Liu
Summary: Per-and polyfluoroalkyl substances (PFAS) pose a serious threat to the environment due to their toxicity and non-biodegradability. Photocatalytic degradation of perfluorooctanoic acid (PFOA) has been proven effective, and the use of ZIF67@C3N4 and MIL-100 (Fe)@C3N4 composites enhances the adsorption properties and degradation efficiency. This process also promotes the mineralization of intermediate products.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Chemistry, Inorganic & Nuclear
Soumya Mukherjee, Debobroto Sensharma, Omid T. Qazvini, Subhajit Dutta, Lauren K. Macreadie, Sujit K. Ghosh, Ravichandar Babarao
Summary: The chemical industry contributes around 7% of the global GDP, with 40% of its energy consumption coming from separation/purification processes of commodity chemicals. The use of recyclable adsorbents, such as metal-organic framework (MOF) physisorbents, shows promise in reducing this energy footprint, particularly in the separation of C6 cyclic hydrocarbons like benzene and cyclohexane. Despite the potential of MOFs as selective adsorbents, further research is needed to fully explore their capabilities in this niche area.
COORDINATION CHEMISTRY REVIEWS
(2021)
Review
Chemistry, Inorganic & Nuclear
Mahnaz Najafi, Sara Abednatanzi, Parviz Gohari Derakhshandeh, Fariba Mollarasouli, Sonia Bahrani, Elham Sadati Behbahani, Pascal Van der Voort, Mehrorang Ghaedi
Summary: Environmental pollution caused by various industries has led to water contamination, posing a threat to human life worldwide. Therefore, it is crucial to explore affordable and efficient technologies for water purification. Metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) offer great potential in the field of water remediation. This review discusses the targeted design of MOFs and COFs, as well as key issues related to adjusting their structures and enhancing their stability for the removal of organic dyes through adsorption, catalysis, and extraction in water.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Green & Sustainable Science & Technology
Sayak Saha Chowdhury, Debashis Roy, Sirshendu De
Summary: A newly synthesized Fe-LAA metal organic framework (MOF) demonstrated effective adsorption ability for removing highly toxic inorganic lead ions from water. The study investigated the surface properties of the amine functionalized MOF through various analytical techniques, and compared its performance to a non-modified counterpart. The developed MOF exhibited enhanced pore volume and specific surface area, and achieved a maximum Langmuir Pb uptake capacity of 508.2 mg/g. The transport characteristics of the solute contaminant were analyzed, and the adsorbent was found to be selective and reusable.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Sciences
Shuting Zhuang, Jianlong Wang
Summary: This study investigated the contribution of defective structure in UiO-66 to the adsorptive removal of pharmaceutical pollutants from aqueous solution. The controlled defects greatly affected the adsorption equilibrium time, adsorption capacity, and adsorption selectivity of the MOF. Defective UiO-66 exhibited faster adsorption equilibrium and higher adsorption capacity compared to perfective UiO-66, providing insight into the relationship between defective structure and adsorption performance.
Article
Chemistry, Inorganic & Nuclear
Yu-Xia Li, Yu-Nong Ji, Shi-Xian Mao, Meng-Meng Jin, Xiao-Qin Liu, Lin-Bing Sun
Summary: Cu-I-functionalized materials show high potential in applications such as adsorptive desulfurization, but their instability against oxidation limits practical use. By constructing a superhydrophobic microenvironment in metal-organic frameworks, Cu-I stability was enhanced and adsorption performance was improved.
INORGANIC CHEMISTRY FRONTIERS
(2021)