Review
Chemistry, Multidisciplinary
Haozhen Dou, Mi Xu, Baoyu Wang, Zhen Zhang, Guobin Wen, Yun Zheng, Dan Luo, Lei Zhao, Aiping Yu, Luhong Zhang, Zhongyi Jiang, Zhongwei Chen
Summary: Microporous framework membranes, including MOF membranes and COF membranes, offer great potential to address the tradeoff between membrane permeability and selectivity, making them promising candidates for future membrane technology. The past five years have seen a surge in novel membrane materials and applications in this field.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Green & Sustainable Science & Technology
Josh HuaiXun Lim, Kunli Goh, Daniel Yee Fan Ng, Jiawei Chew, Rong Wang
Summary: Conventional organic solvent recovery methods are energy-intensive and have large footprints. We have developed a new approach that combines adsorption and membrane processes to address these challenges. By designing a polyacrylonitrile (PAN) electrospun membrane with a hierarchical structure, we are able to improve the efficiency of solvent recovery while maintaining high removal rates.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Nanoscience & Nanotechnology
Tanka Mukhiya, Alagan Muthurasu, Arjun Prasad Tiwari, Kisan Chhetri, Su-Hyeong Chae, Hyoju Kim, Bipeen Dahal, Byoung Min Lee, Hak Yong Kim
Summary: This study successfully synthesized a multifunctional advanced nanomaterial by growing Co nanoparticle-integrated nitrogen-doped carbon nanotubes on porous carbon nanofibers using a metal-organic framework based electrospun nanofibrous membrane. The nano-assembly showed promising characteristics for electrocatalytic hydrogen and oxygen evolution reactions and electrochemical energy storage, providing a new, direct, and cost-effective approach for making N-doped CNT-based multifunctional membranes.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Congcong Chen, Weidong Zhang, He Zhu, Bo-Geng Li, Yingying Lu, Shiping Zhu
Summary: A facile one-pot electrospinning strategy was proposed for preparing Metal-Organic Framework (MOF)/polymer composite materials, which exhibited uniform MOF distribution and good mechanical properties. The composite membranes, used as separators in Li-metal batteries, demonstrated significantly improved cycling performance under harsh testing conditions. This improvement was attributed to enhanced wettability and a uniform lithium ion flux stabilized by the open metal sites of uniformly distributed MOF particles in the membrane.
Article
Engineering, Chemical
Mengjie Pu, Daqi Ye, Jinquan Wan, Bentuo Xu, Wei Sun, Wei Li
Summary: A novel peroxymonosulfate (PMS) catalyst, ZIF-65/PAN nanofibers membrane, was fabricated for the efficient degradation of ciprofloxacin in water. The study investigated the physicochemical properties, catalytic performance, stability, and reusability of the catalyst. The results provide novel insights for the application of MOF-based membrane in PMS based advanced oxidation processes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Mengjie Pu, Daqi Ye, Jinquan Wan, Bentuo Xu, Wei Sun, Wei Li
Summary: A novel ZIF-65/PAN nanofiber membrane catalyst was fabricated and used for the degradation of ciprofloxacin in water. The catalytic performance and stability of the catalyst were studied, and the reaction mechanism was speculated. The results show that the ZIF-65/PAN nanofiber membrane exhibits efficient activation of PMS and high degradation efficiency of ciprofloxacin.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Lan Yang, Qiang Gao, Yan-Mei Zhang, Ruihan Wang, Li-Zhuang Chen
Summary: A microporous heterometal-organic framework, CuIn(ina)4, has been demonstrated to selectively enrich C2H6 over C2H4, showing high separation performance and potential as an ethylene purification material.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Zhong Zhang, Yiwei Liu, Hongrui Tian, Xujiao Ma, Qian Yue, Zhixia Sun, Ying Lu, Shuxia Liu
Summary: The use of close-packed polystyrene nanosphere templates allowed for the successful fabrication of ordered macroporous polyoxometalate-based metal-organic framework (POM@MOF) single crystals, while weak alkaline carboxylate was used to regulate their in situ nucleation and growth, achieving a hierarchical structure with ordered macropores and intrinsic micropores.
Article
Nanoscience & Nanotechnology
Tao Yan, Jianhua Yang, Jinming Lu, Liang Zhou, Yan Zhang, Gaohong He
Summary: Recently, pillar-layered MOF materials have gained attention for their fine pore size/channel and tunability in separation applications. This study presents a synthesis strategy for preparing Ni-based pillar-layered MOF membranes with high performance and stability by secondary growth. The strategy involves seed size reduction and screening engineering to obtain uniform sub-micron size MOF seeds. The prepared ultra-microporous membranes showed promising results in H2 purification, demonstrating the potential of MOF materials in industrial applications. The synthesis strategy also enables the regulation of membrane pore size and surface functional groups.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Editorial Material
Chemistry, Multidisciplinary
Simon Krause
Summary: This article introduces a method for water isotopes separation using responsive dynamic pore windows in microporous coordination polymers, achieving unprecedented selectivity based on an elegant mechanism.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Min-Bum Kim, Alexander J. Robinson, Maria L. Sushko, Praveen K. Thallapally
Summary: Obtaining pure Xe from various sources is important for the environment and industry. The aluminum-based MOF (Al-SDB) showed high Xe capacity and selectivity for Xe/Kr separation. It also demonstrated potential for PSA process. The breakthrough experiment further confirmed its efficiency in separating Xe/Kr mixtures under flow conditions.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Louis Frentzel-Beyme, Pascal Kolodzeiski, Kai Terlinden, Sebastian Henke
Summary: This article presents a new approach to water-processable metal-organic framework materials. By using amphiphilic organic building blocks consisting of polar carboxylate groups and non-polar alkyl chains, these materials can assemble into porous framework structures via bonding to kinetically labile sodium ions from concentrated aqueous solution. The obtained materials, termed amphiphile salt frameworks, are thermally and mechanically stable and have persistent microporous channels accessible to several gases. They can be reversibly assembled/disassembled by crystallization from or dissolution in water.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Lingshan Gong, Ying Liu, Junyu Ren, Abdullah M. Al-Enizi, Ayman Nafady, Yingxiang Ye, Zongbi Bao, Shengqian Ma
Summary: FJU-55, a cationic metal-organic framework, shows highly efficient Xe/Kr separation performance due to its uniform three-dimensional interconnection channels and electro-positive features. It has good Xe adsorption capacity, excellent Xe/Kr selectivity, and high adsorption heat. Molecular modeling studies reveal that the suitable pore size and abundant aromatic ligands in FJU-55 provide strong interactions, contributing to its superior gas separation performance.
Article
Chemistry, Physical
Lingshan Gong, Ying Liu, Junyu Ren, Abdullah M. Al-Enizi, Ayman Nafady, Yingxiang Ye, Zongbi Bao, Shengqian Ma
Summary: This study demonstrates that the cationic metal-organic framework, FJU-55, shows highly efficient performance in separating xenon/krypton mixtures. FJU-55 possesses uniform three-dimensional interconnection channels and electro-positive features, resulting in excellent selectivity and adsorption capacity for xenon.
Article
Chemistry, Inorganic & Nuclear
Xingyu Li, Yuhan Lin, Liang Yu, Jizhao Zou, Hao Wang
Summary: Adsorptive separation of alkane isomers, especially mono-and dibranched alkanes, remains challenging in the petrochemical industry. This study reports the discrimination of alkane isomers using a highly stable calcium-based metal-organic framework through a thermodynamically driven mechanism.
INORGANIC CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Yefeng Feng, Kaidan Wu, Shanshan Wu, Yuanyuan Guo, Miao He, Ming Xue
Summary: In this study, a novel carbon quantum dot-derived carbon nanosphere-encapsulated Ti3C2 MXene (CNS@Ti3C2) composite was synthesized by polymer pyrolysis. The composite can stabilize the layered structure of Ti3C2 MXene, improve its cycle life, and enhance the potassium storage power. The CNS@Ti3C2 composite possesses excellent synergy, resulting in a high reversible capacity and cycle life.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Baoju Li, Zitao Wang, Zhuangzhuang Gao, Jinquan Suo, Ming Xue, Yushan Yan, Valentin Valtchev, Shilun Qiu, Qianrong Fang
Summary: Covalent organic frameworks (COFs) are promising engineering materials for molecular sieving membranes. However, their insolubility and high melting temperature pose challenges for COF-based membrane (COFM) fabrication. This study reports a new synthetic strategy to prepare continuous and intact self-standing COFMs with excellent selectivity and ultrahigh H-2 permeance, surpassing previous COFMs. Furthermore, a theoretical study explains the remarkable separation performance of H-2/CO2 through COFMs.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Mathematics, Applied
Lili Fan, Ruonan Liu, Hongjun Gao
Summary: This study examines a Hamiltonian model for the propagation of internal water waves interacting with surface waves, a current, and an uneven bottom. By using the Dirichlet-Neumann operators, the water wave system is expressed in Hamiltonian form, allowing for the determination of the motions of internal and surface waves. Through appropriate scaling of variables and the Hamiltonian perturbation theory, a KdV-type equation with variable coefficients dependent on bottom topography is derived to describe the internal waves.
PHYSICA D-NONLINEAR PHENOMENA
(2023)
Article
Chemistry, Applied
Junnan Chen, Jinhua Feng, Chengpeng Liang, Li Sun, Zhifeng Lin, Weihua Li, Ming Xue
Summary: The search for nanofillers with excellent barrier performance, good compatibility with polymer matrix, and low risk of triggering galvanic corrosion remains a challenge in the organic coating industry. This study successfully fabricated ZIF nanosheets and used them as additives in epoxy matrix for corrosion resistance. The results showed that epoxy doped with 0.5 wt% ZIF-NS exhibited significantly higher resistance modulus compared to neat epoxy. The use of ZIF nanosheets has great potential for creating epoxy-based composite coatings on a large scale and could open up possibilities for other two-dimensional MOFs in industries.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Chemistry, Multidisciplinary
Titao Jing, Shuchang Wang, Haiyuan Yuan, Yujue Yang, Ming Xue, Bingang Xu
Summary: Gel-based triboelectric nanogenerator (TENG) has the potential for stretchable electronics due to the softness, stretchability, and conductivity of gel electrodes. However, delamination between gel and elastomer layers remains a challenge. This study introduces a method that enhances interfacial bonding strength by using gels as adhesives, which solves the delamination problem and maintains the output performance of TENG devices.
Article
Nanoscience & Nanotechnology
Zhuangzhuang Gao, Baoju Li, Zhan Li, Tongwen Yu, Shuchang Wang, Qianrong Fang, Shilun Qiu, Ming Xue
Summary: In this study, a solvent-free space-confined conversion (SFSC) approach was used to fabricate a series of free-standing metal-organic framework (MOF) membranes. These membranes have a robust and unique structure, with large amounts of irregular-shaped micron-scale pore cavities and highly porous interlayers, resulting in satisfactory selectivities and exceptional permeances.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Yu-Qi Wang, Xiao-Han Dan, Zhen-Yu Yi, Xiang Wang, Ya-Chen Feng, Yue Feng, Dong Wang, Li-Jun Wan
Summary: This study investigates the O-2 adsorption and reduction on cobalt porphyrin (CoOEP) and phthalocyanine (CoPc) using in situ electrochemical scanning tunneling microscopy (ECSTM). Results show higher ORR activity of CoOEP compared to CoPc. Molecular-level imaging reveals that O-2 adsorbs mainly on Co-II sites and exhibits higher contrast in ECSTM images on CoOEP compared to CoPc. The dynamics of O-2 adsorption are quantitatively measured, with CoOEP exhibiting higher binding dynamics and lower Co-O dissociation barriers compared to CoPc.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Si-Qi Lu, Qinghua Zhang, Fanqi Meng, Ya-Ning Liu, Jianjun Mao, Sijie Guo, Mu-Yao Qi, Yan-Song Xu, Yan Qiao, Si-Dong Zhang, Kecheng Jiang, Lin Gu, Yang Xia, Shuguang Chen, GuanHua Chen, An-Min Cao, Li-Jun Wan
Summary: A method is presented to enhance the stability of nickel-rich layered oxides (NLOs) through surface solid reaction, improving cycling performance and reliability. La(OH)3 nanoshells are constructed to capture Li+ ions and react with the NLO surface lattices, transforming the particle crust into an epitaxial layer with localized Ni/Li disordering. This surface engineering results in improved capacity retention and excellent rate capability of NLOs for high-energy lithium-ion batteries.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Medicinal
Lili Fan, Xueying Zhang, Yihai Huang, Baobao Zhang, Wenjing Li, Qingru Shi, Yining Lin, Feihua Wu
Summary: In this study, it was found that Hom from Salvia plebeia R. Br. could protect vascular endothelial cells (VEC) from high glucose-induced injury by enhancing autophagy through the AMPK/mTORC1/TFEB pathway. These findings provide a potential therapeutic strategy for diabetic vascular complications.
PHYTOTHERAPY RESEARCH
(2023)
Article
Engineering, Environmental
Zhan Li, Pengfei Zhang, Kecheng Guan, Ralph Rolly Gonzales, Toru Ishigami, Ming Xue, Tomohisa Yoshioka, Hideto Matsuyama
Summary: Ammonia is a toxic and hazardous substance, but it can also be a valuable chemical. Industrial wastewater often contains high concentrations of soluble gaseous ammonia. By utilizing the vapor-liquid equilibrium of the ammonia-water binary system, it is possible to recover and concentrate ammonia from these wastewater through sweep gas membrane distillation (SGMD). This study demonstrates the ammonia recovery process using SGMD and investigates the effects of different operating conditions on its performance.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Automation & Control Systems
Lili Fan, Dongpu Cao, Changxian Zeng, Bai Li, Yunjie Li, Fei-Yue Wang
Summary: In this research, a metaverse-enabled road maintenance system based on cyber-physical-social systems (CPSSs) is proposed, which fully utilizes the information of CPSS and the functions of road systems in the virtual world of the metaverse. An adaptive and information-preserving data augmentation (AIDA) algorithm-based crack detection algorithm is also proposed to enhance the detection performance of small targets in uncertain environments. The research can also be applied to the traffic metaverse by embedding a traffic flow prediction module in the algorithm. Experimental results show that the proposed algorithm outperforms other state-of-the-art algorithms in road damage detection tasks under different noise and weather conditions.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2023)
Article
Food Science & Technology
Lili Fan, Junjing Hu, Ziwu Guo, Shuanglin Chen, Qijiang He
Summary: This study assessed nutritional and flavor differences in two components, shoot flesh and diaphragm, of two Phyllostachys species and analyzed any positional variation. The results showed that shoot flesh contained higher levels of protein, starch, fat, and vitamin C. On the other hand, the diaphragm had comparable levels of total acid, oxalic acid, and tannin in both species. Our findings suggest that bamboo shoot quality is affected by flavor compound differences, and interspecific and shoot components interact.
Article
Chemistry, Physical
Xiang Wang, Zhen-Yu Yi, Yu-Qi Wang, Dong Wang, Li-Jun Wan
Summary: This study investigated the dynamic processes of methanol absorption and catalytic conversion on isolated single-atom Rh-N-4 sites using in situ electrochemical scanning tunneling microscopy. The results provided microscopic insights into the catalytic mechanism and reaction dynamics of methanol electrooxidation on Rh-N-4 sites, which is valuable for the rational design of high-performance catalysts.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Yu-Qi Wang, Xiao-Han Dan, Zhen-Yu Yi, Xiang Wang, Ya-Chen Feng, Yue Feng, Dong Wang, Li-Jun Wan
Summary: The in situ electrochemical scanning tunneling microscopy (ECSTM) study of O2 adsorption and reduction on cobalt porphyrin (CoOEP) and phthalocyanine (CoPc) is reported. CoOEP exhibits higher ORR activity than CoPc according to electrochemical measurements. Self-assembled CoOEP and CoPc monolayers on Au(111) substrates are observed at molecular resolution by ECSTM. O2 adsorbs on CoII sites and has high contrast in ECSTM images for both CoOEP-O2 and CoPc-O2 complexes. The surface coverage of CoOEP-O2 is approximately 1.4 times higher than that of CoPc-O2. The dynamics of O2 adsorption, quantitatively measured by potential step experiments, indicate higher dynamics and lower barriers for Co-O dissociation on CoOEP compared to CoPc.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Lili Fan, Xiaofei Wei, Xuting Li, Zhanning Liu, Mengfei Li, Shuo Liu, Zixi Kang, Fangna Dai, Xiaoqing Lu, Daofeng Sun
Summary: This study reports a phosphorus-doped Fe-N-C catalyst with penta-coordinated single atom sites for efficient oxygen reduction. The catalyst exhibits remarkable ORR activity and stability in alkaline, neutral, and acidic media.
