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
Engineering, Chemical
Fang Zhou, YiXin Zhang, Qi Liu, Suhua Huang, Xiaoyan Wu, Zhiwei Wang, Lisen Zhang, Ruan Chi
Summary: Weathered crust elution-deposited rare earth ores tailings, after modification, exhibit efficient adsorption performance for rare earth ions, specifically La3+ and Y3+. The adsorption kinetics and thermodynamics were investigated, and it was found that the adsorption process is better described by the pseudo-second-order model and follows the Langmuir isotherm model. The recovery of rare earth ions can be achieved using a leaching solution of weathered crust elution-deposited rare earth ores.
MINERALS ENGINEERING
(2023)
Article
Chemistry, Applied
Yanyang Wu, Jiabo Rao, Qing Yi, Zhihui Ma, Bin Wu, Kui Chen, Lijun Ji
Summary: This study investigated the adsorption performance of metal-organic frameworks (MOFs) for separating 2-Phenylethanol from 1-Phenyl-2-propanol and 2-Ethylphenol. NH2-UiO-66(1) was found to be a feasible adsorbent for this separation process.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Review
Chemistry, Multidisciplinary
Jie-Peng Zhang, Dong-Dong Zhou
Summary: This Account discusses the role of flexibility of MOFs for adsorptive separation, mainly from the thermodynamic and kinetic points of view. Different types of flexibility, such as guest-driven structural transformations and gating flexibility, can be utilized to achieve specific adsorption/separation behaviors like molecular sieving and inversed temperature dependence.
ACCOUNTS OF CHEMICAL RESEARCH
(2022)
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
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
Zhou Fang, Huang Suhua, Liu Xu, Feng Jian, Liu Qi, Wang Zhiwei, Li Chuanchang, Xu Yuanlai
Summary: In this study, montmorillonite (Mt) was modified to enhance its adsorption capacity of rare earth ions (RE3+). The adsorption capacity of RE3+ on modified Mt was found to be influenced by the initial concentration and temperature, with the adsorption process being controlled by chemisorption. The pseudo-second-order model accurately represents the adsorption kinetics, and the process is determined to be a spontaneous endothermic process through thermodynamic studies.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
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
Chemistry, Multidisciplinary
Zhen Li, Xiao-Bao Li, Mark E. Light, Anna E. Carrillo, Ana Arauzo, Manuel Valvidares, Claudio Roscini, Francesc Teixidor, Clara Vinas, Felipe Gandara, Elena Bartolome, Jose Giner Planas
Summary: This work demonstrates the successful synthesis of a multi-metallic MTV RE MOF incorporating two, four, six, or eight different RE ions without any compositional segregation. The incorporation of all RE cations is characterized via compositional and structural characterization. The more complex MTV MOF, including all eight RE ions, is characterized using optical, thermal, and magnetic techniques.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Analytical
Jinsheng Wu, Zhan Li, Hongxin Tan, Shaobo Du, Tianqi Liu, Yanli Yuan, Xiuhui Liu, Hongdeng Qiu
Summary: Rare earth elements are widely used in various devices, but achieving their selective separation and purification remains a challenge. Metal-organic frameworks (MOFs) have been utilized for selective separation of REEs, but most cannot be used for solid-state adsorption of REEs in strong acid. A new composite material was developed with the best separation performance for REEs.
ANALYTICAL CHEMISTRY
(2021)
Review
Environmental Sciences
Md Jamal Uddin, Rita E. Ampiaw, Wontae Lee
Summary: Metal-organic frameworks (MOFs) are a promising adsorbent for efficient dye removal and degradation in industrial wastewater treatment. The performance of MOFs is influenced by factors such as their structure type, functional groups, ligands, and pH level.
Article
Energy & Fuels
Liping Mu, Jing Luo, Chao Wang, Jixing Liu, Yiru Zou, Xiaowei Li, Yan Huang, Peiwen Wu, Haiyan Ji, Wenshuai Zhu
Summary: The hybrid nanocomposite exhibits excellent desulfurization performance and impressive adsorption capacity for different types of sulfides, showing great potential for applications in various fields.
Review
Chemistry, Physical
Asiata Omotayo Ibrahim, Kayode Adesina Adegoke, Rhoda Oyeladun Adegoke, Yahaya A. AbdulWahab, Victoria B. Oyelami, Morenike Oluwabunmi Adesina
Summary: This review discusses the applications of metal-organic frameworks (MOFs) as novel carbonaceous nanomaterials for removing pollutants from various environments, highlighting promising MOF adsorbents and emphasizing the importance of their reusability as well as addressing challenges and prospects.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
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)
Article
Engineering, Environmental
Rickson Jun Jay Chia, Woei Jye Lau, Norhaniza Yusof, Ahmad Fauzi Ismail, Ana Loncaric Bozic
Summary: Researchers enhanced the performance of MIL-100(Fe) for As(V) adsorption by introducing benzoic acid as a modulator, creating vacancy defects in the structure. The modified adsorbent showed larger surface area and pore size, resulting in improved adsorption capacity for As(V). However, the presence of competing compounds such as carbonate and phosphate anions needs to be addressed for effective adsorption.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)