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
Chemistry, Multidisciplinary
Avishek Dey, Santanu Chand, Bholanath Maity, Prashant M. Bhatt, Munmun Ghosh, Luigi Cavallo, Mohamed Eddaoudi, Niveen M. Khashab
Summary: The molecular sieving properties of easily scalable and stable trianglimine crystals offer ultrahigh selectivity for styrene separation, as supported by DFT calculations.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Lun Shu, Yuan Peng, Rui Yao, Hongling Song, Chenyu Zhu, Weishen Yang
Summary: A facile strategy has been developed to construct defect-free and flexible metal-organic framework (MOF)-based membranes with high selectivity. The fabricated soft-solid MOF composite membranes showed excellent separation performance for H-2/CO2 separation. This study demonstrates the potential of MOF-based membranes in practical separation applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
De Ao, Zibo Yang, Zhihua Qiao, Yuxiu Sun, Zhengqing Zhang, Michael D. Guiver, Chongli Zhong
Summary: A self-supported MOF crystal-glass composite (CGC) membrane was prepared by melt quenching ZIF-62 and ZIF-8 mixture. The membrane exhibited improved gas permeance and selectivity due to its unique structure. The thickness of the membrane can be adjusted without the need of a support substrate.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Chemical
Daofei Lv, Zewei Liu, Feng Xu, Houxiao Wu, Wenbing Yuan, Jian Yan, Hongxia Xi, Xin Chen, Qibin Xia
Summary: The separation of C2H6 and C3H8 from CH4 is crucial in the petrochemical industry, with traditional cryogenic distillation being energy-intensive and costly. A Ni-based metal-organic framework CTGU-15 shows promising potential for the efficient adsorptive separation of light alkanes, with high C3H8 uptake and low CH4 uptake. Computational simulations and breakthrough experiments demonstrate the high adsorption selectivities of C3H8/CH4 and C2H6/CH4 on CTGU-15, making it a stable and efficient adsorbent for CH4/C2H6/C3H8 separation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Xu Zhang, Xin Yu, Zehai Xu, Qin Meng, Chong Shen, Guoliang Zhang, Congjie Gao
Summary: A continuous dense zeolite imidazolate framework (ZIF) composite membrane was successfully prepared for enhanced gas separation using diethylenetriamine (DETA) and tannic acid (TA) cross-linked polymeric hollow fiber substrates via in-situ solvothermal method. The modified polyvinylidene fluoride(PVDF) support containing abundant active sites and the synergistic effect between TA and DETA improved the stiffness, durability, and gas separation performance of the MOF composite membrane. The fabricated TADETA-PVDF/ZIF-8 composite membrane exhibited excellent hydrogen permeance and selectivity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Lei Gan, Eduardo Andres-Garcia, Guillermo Minguez Espallargas, Jose Giner Planas
Summary: We demonstrate that the carborane-based metal-organic framework (MOF), mCB-MOF-1, exhibits high adsorptive selectivity for CO2:N2 mixtures. This hydrophobic MOF with open metal sites shows exceptional CO2 adsorption capacity and sustained selectivity values even in extremely humid conditions. A comparison with MOF-74(Ni) highlights the superior performance of mCB-MOF-1 under challenging moisture operation conditions.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Chemistry, Inorganic & Nuclear
Ting Chen, Dan Zhao
Summary: Metal-organic frameworks (MOFs) are porous crystalline materials constructed by metal clusters and organic linkers. Recent research has focused on the development of engineered forms of MOFs, particularly MOF-based membranes for molecular separations. This review highlights the advances in post-synthetic modification of MOFs and their membranes for enhanced separation performance. Post-synthetic modification methods are categorized and examples of modified MOF membranes are discussed. The contributions of post-synthetic modification to improved molecular separation performance are emphasized, along with the challenges and opportunities for practical applications of MOF membranes.
COORDINATION CHEMISTRY REVIEWS
(2023)
Article
Engineering, Environmental
Shivendra Sinha, S. De, D. Mishra, S. Shekhar, A. Agarwal, K. K. Sahu
Summary: The use of functionalized metal organic frameworks and composite beads have successfully achieved high efficiency adsorption and separation of lanthanum from wastewater, suggesting potential for improved recovery of rare earth elements.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Analytical
Jinniu Zhang, Gang Li, Jia Liu, Yumeng Liu, Ruyi Yang, Lu Li, Qiyi Zhao, Jianzhi Gao, Gangqiang Zhu, Benpeng Zhu, Hongbing Lu
Summary: Researchers fabricated porous reduced graphene oxide (rGO)-ZnO composite nanofibers by electrospinning rGO and zeolitic imidazolate framework-8 (ZIF-8) precursors. The resulting materials exhibited high-density and large-size mesopores, which were attributed to the integration of MOFs and NFs. The rGO-ZnO NFs showed improved sensing properties compared to pure ZnO nanocages, including higher isopropanol sensing responses and faster response/recovery times. This study presents a novel approach for constructing MOF-derived porous rGO-metal oxide composite NFs with high-performance sensing materials.
SENSORS AND ACTUATORS B-CHEMICAL
(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
Chemistry, Inorganic & Nuclear
Abhijeet Rana, Subhrajyoti Ghosh, Shyam Biswas
Summary: This study reports the first-ever superhydrophobic metal-organic framework (MOF) material synthesized using a presynthesized long-chain hydrocarbon-based linker. The material exhibits high crystallinity, functionality, elemental purity, and particle nature, and shows superhydrophobic properties. The MOF material is further used to develop a superhydrophobic composite and membrane for selective separation of oil from oil-water mixtures, achieving high separation efficiency. The composite and membrane also demonstrate remarkable self-cleaning properties.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Green & Sustainable Science & Technology
Haoze Wang, Jiefeng Meng, Feng Li, Taohai Li
Summary: In this study, graphitic carbon nitride/metal-organic framework material was synthesized through a simple hydrothermal method, and cotton was modified using a simple soaking method to prepare superhydrophobic cotton with photocatalytic ability. The modified cotton exhibited an excellent superhydrophobic angle and could sorb oil more than 10 times its own mass. The cotton material could achieve oil-water separation in various conditions and was able to separate micro-nano-scale water droplets from water-in-oil emulsions. Additionally, the cotton showed high efficiency in the degradation of Eriochrome Black T under light irradiation.
JOURNAL OF CLEANER PRODUCTION
(2023)
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
Chemistry, Physical
Yi Guo, Bin Gao, Zheng Deng, Yu Liu, Xinsheng Peng, Yanli Zhao
Summary: This study successfully prepared a hybrid metal-organic framework film capable of efficiently converting CO2, exhibiting high photocatalytic performance and rapid CO2 conversion at room temperature and low pressure.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Environmental Sciences
Shuai-Wen Zou, Kok Yuen Koh, Zhihao Chen, Yu-Yang Wang, J. Paul Chen, Yu-Ming Zheng
Summary: In this study, a Fe-Mn-Zr ternary magnetic sorbent was synthesized for efficient removal of both inorganic and organic arsenic species. The optimized sorbent showed higher adsorption capacity and the adsorption performance was affected by pH, contact time, and the presence of other anions in water. The mechanism study indicated that ion exchange and complexation were key processes in arsenic removal.
Article
Environmental Sciences
Zhihao Chen, Meiqing Chen, Kok Yuen Koh, Wenyang Neo, Choon Nam Ong, J. Paul Chen
Summary: This study developed a CaO2-functionalized wet alginate bead for simultaneous removal of phosphorus and inhibition of algae growth, demonstrating promising potential for the management of harmful algal blooms. The bead showed stable H2O2 release and efficient removal of phosphorus in water, as well as long-lasting inhibition of algae growth, outperforming other traditional methods. This functionalized material also proved effective in removing algae in realistic water samples.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Sujie Shan, Zhihao Chen, Kok Yuen Koh, Wei Wang, Jiayu Wu, J. Paul Chen, Fuyi Cui
Summary: In this study, a new nano-sized lanthanum peroxide composite (LPC) was developed for the simultaneous oxidation and adsorption of arsenite. The LPC demonstrated rapid oxidation and adsorption kinetics, high selectivity, and superior adsorption capacity for arsenite, outperforming many reported adsorbents. Both arsenite and arsenate in simulated arsenic-polluted reservoir waters were effectively removed.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Zhihong Lin, Jiali Tang, Xiaochun Huang, J. Paul Chen
Summary: In this study, a non-porous metal-organic framework (MOF) was synthesized for efficient and rapid removal of phosphorus in water. The MOF exhibited high adsorption capacity and fast adsorption kinetics. It also showed excellent performance in various conditions of phosphate contamination. This study suggests that the newly developed MOF has great potential as a cost-effective adsorbent for phosphorus treatment in water and wastewater.
Review
Environmental Sciences
Yi Yang, Ruikun Xu, Chenyang Zheng, Yuxi Long, Shuo Tang, Zemin Sun, Binbin Huang, J. Paul Chen
Summary: Hollow zeolite fibers with hierarchical porosity have improved diffusion efficiency and are suitable for catalytic applications. Catalytic zeolite membrane fibers are commonly used due to their stability and selectivity. Further research is needed to develop self-assembly pure hollow zeolite fibers, catalytic substrate incorporated hollow zeolite fibers, hollow zeolite fibers with gradient multicomponent zeolites, and hollow zeolite fibers with nanoscale diameters.
Article
Environmental Sciences
Kok Yuen Koh, Zhihao Chen, Shihan Lin, Kishan Chandra Mohan, Xiaohong Luo, J. Paul Chen
Summary: This study evaluated the characteristics of microplastics in different water sources and oxidation processes and studied the leaching of dissolved organic carbon (DOC) and the formation of chloroform. The results showed that the leached DOC and chloroform formation were related to the degree of surface structural damage on the plastic. This study provides useful information for the risk assessment of microplastics in fresh water and drinking water.
Article
Engineering, Environmental
Jinsong He, Xiao Fu, Fan Ni, Gang Yang, Shihuai Deng, J. Paul Chen, Fei Shen
Summary: This study investigates the interaction between microplastics and hydrophilic organic contaminants in water environment, and finds that the adsorption process is pH-dependent. The aged state of polystyrene is also found to significantly affect the adsorption performance.
Article
Engineering, Environmental
Hao Peng, Andrijana Minic, Kornkamol Banjerdteerakul, Kang Li
Summary: A COF-300/PVDF composite was developed as a high-performance adsorbent for PAHs removal, showing superior adsorption capacity, kinetics, and removal efficiency compared to COF-300 powders. It holds great potential for practical applications in PAHs removal.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Hao Peng, Vatsal Shah, Kang Li
Summary: Phase inversion plays a vital role in membrane technology for economic production of polymeric membrane and energy-saving wastewater treatment. However, existing phase inversion membranes often have low permeance, limiting their efficiency in separation processes.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Kornkamol Banjerdteerakul, Farhad Moghadam, Hao Peng, Kang Li
Summary: For the first time, a new approach was proposed to prepare porous hollow fiber (HF) yttria-stabilized zirconia (YSZ) substrates with small-diameter (660-790 μm, outer diameter (OD)) by stretching the nascent HF using gravitational force. Using a delayed phase inversion, a plurality of radial micro-channels opening from the interior surface of HFs can be realized. The resultant HF substrates show promising permeation characteristics and good fracture strength, and small-diameter HF substrates with higher surface curvature ensured the fabrication of porous GO (PGO) membranes with better dye separation performance.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Kornkamol Banjerdteerakul, Hao Peng, Kang Li
Summary: Nanofiltration is an effective method for removing emerging pharmaceuticals from waste-water to improve water quality and mitigate environmental impacts. However, the low separation efficiency of current nanofiltration membranes has hindered their development. In this study, a thin film composite membrane was prepared by stacking covalent organic framework (COF) nanosheets on a ceramic hollow fibre, showing high rejection for environmentally persistent pharmaceuticals. The COF-based nanofiltration membranes have a small footprint and can be easily integrated into existing water treatment systems, making them a promising option for mitigating the environmental impacts of emerging pharmaceuticals in wastewater.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Kornkamol Banjerdteerakul, Hao Peng, Kang Li
Summary: By employing an in-situ growth method, we successfully prepared COF-LZU1 and COF-300 membranes for the separation of polar/non-polar solvent mixtures. These composite membranes, consisting of a defect-free COF layer on a ceramic hollow fiber substrate, exhibited high solvent fluxes and achieved high separation factors for various azeotropic mixtures. Our study demonstrated the technical feasibility of using COF-based membranes for the separation of azeotropic solvent mixtures.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Hao Peng, Kang Li
Summary: In this study, a novel approach combining non-solvent-induced phase separation (NIPS) with crystallisation and diffusion (CCD) technique, called NIPS-CCD, was proposed to enhance the permeation of polyethersulfone (PES) ultrafiltration membrane. The NIPS-CCD method showed a 50-fold increase in water permeation to 771 LMH bar-1 with pore size of 6-7 nm. This approach can be easily adapted for other high-performance membrane materials, making it a promising strategy for improving membrane permeation properties.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Kornkamol Banjerdteerakul, Hao Peng, Kang Li
Summary: Covalent organic frameworks (COFs) have shown potential as membrane materials for water purification and organic solvent nanofiltration due to their adjustable pore size and ease of functionalisation. However, current COF membranes are limited in their mechanical stability and structural integrity when applied on flexible polymeric substrates. In this study, COF-LZU1 membranes were fabricated on pre-designed ceramic hollow fibres using direct interfacial polymerisation, resulting in highly crystalline and defect-free COF layers. The membranes exhibited high pure water permeance and rejection rates for dyes, highlighting their potential for enhanced process intensification.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Environmental
Kok Yuen Koh, Zhihao Chen, Zhongrong Du, Sikai Benjamin Ngeow, J. Paul Chen
Summary: An innovative photocatalysis process using alginate beads coupled with cadmium sulfide was developed for water decontamination. The process effectively reduced highly toxic hexavalent chromium and proved stable during the experiment. Increasing cross-linking can further improve the reusability of the beads.
CHEMICAL ENGINEERING JOURNAL ADVANCES
(2022)
Review
Chemistry, Multidisciplinary
Dan He, Yawen Li, Fuwen Zhao, Yuze Lin
Summary: High trap density in organic solar cells leads to localized charge carriers and reduced carrier lifetime, limiting device efficiency. This feature article summarizes the recent advances of trap suppression by material design and device engineering.
CHEMICAL COMMUNICATIONS
(2024)
Review
Chemistry, Multidisciplinary
Olivier Monfort, Arshitha Madhusudhan, Martin Motola
Summary: This article presents the advantages of coupling photocatalysis and Fenton-based processes for environmental remediation and discusses their synergy. It critically examines the simultaneous triggering of these two processes and provides insights into research approaches. The study aims to enhance understanding of this complex process and highlight the potential integration of new catalysts in current wastewater treatment technology.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Manideepa Dhar, Chittaranjan Mishra, Avijit Das, Uttam Manna
Summary: An approach of 'polymerization of monomers in its aggregated form' has been introduced to tailor the water wettability of fibrous and porous substrates, achieving hydrophobicity to superhydrophobicity transition, as well as patterned wettability. This facile chemical method provides a durable coating with adjustable and patterned wettability for various potential applications.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Saswat Ranjan Bhoi, Chhanda Debnath, Shikha Gandhi
Summary: In this article, a novel catalytic reaction using Pd(0) and Bronsted acid is reported for the synthesis of biologically important imidazolidinone-fused N-heterocycles through redox-neutral intramolecular N-allylation of indoles and pyrroles with alkynes. This atom-economical method is applicable to a wide range of substrates and eliminates the need for leaving groups or oxidizing agents commonly used in traditional allylation reactions.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Longkun Chen, Mingshuai Zhang, Meichen Liu, Zhuoyuan Liu, Yuetong Qiu, Zhilai Zhang, Fuchao Yu, Jiuzhong Huang
Summary: In this study, an efficient Rh(III)-catalyzed selective mono- and dual-C-H bond functionalization/cyclization with iodonium ylide as the sole coupling partner was demonstrated. Fused benzodiazepine skeletons were obtained in excellent yields, providing an improved approach to dual C-H unsymmetrical functionalization.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Alice Kennett, Sven Epple, Gabriella van der Valk, Irene Georgiou, Evelyne Gout, Romain R. Vives, Angela J. Russell
Summary: This study presents the design and synthesis of sulfated disaccharide inhibitors based on IdoA(2S)-GlcNS(6S), which showed potent inhibition of Sulf-2. The results suggest that IdoA(2S)-GlcNS(6S) is the shortest fragment size required for effective inhibition of Sulfs, and a trisulfated disaccharide is identified as the minimal fragment size of heparan sulfate for effective endosulfatase inhibition.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Mauro Garbini, Andrea Brunetti, Riccardo Pedrazzani, Magda Monari, Massimo Marcaccio, Giulio Bertuzzi, Marco Bandini
Summary: The self-adaptability of galvanostatic electrolysis was found to be helpful in a multistage chemo- and diastereoselective electrochemically promoted cyclodimerization of chalcones. Through a series of reductive events, densely functionalized cyclopentanes with five contiguous stereocenters were obtained (25 examples, yields up to 95%, dr values up to >20:1). Further experimental and electrochemical investigations indicated the crucial role of dynamic kinetic resolution of the aldol intermediate in the reaction mechanism.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Dhananjay S. Nipate, Neha Meena, Prakash N. Swami, Krishnan Rangan, Anil Kumar
Summary: In this study, the synthesis of functionalized benzo[a]phenazines and indazolo[2,3-a]quinolines was achieved through Rh(III)-catalyzed oxidative annulation of 2-arylquinoxalines and 2-aryl-2H-indazoles with allyl alcohols. The method showed a wide substrate scope, excellent functional group tolerance, good to high yields of annulated products, and the capability for scaled-up synthesis. A tentative mechanism of the annulation reaction was proposed based on a preliminary mechanistic investigation.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Ruonan Zhang, Abudukadi Tudi, Xia Yang, Xuping Wang, Zhihua Yang, Shujuan Han, Shilie Pan
Summary: A new lead tellurium borate material with a unique fundamental building block [B4O10] was synthesized and found to exhibit high birefringence. The structure-property relationship was discussed using first-principles calculations.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Amresh Kumar Singh, Baishali Thakurta, Anupam Giri, Monalisa Pal
Summary: This study introduces three key concepts for the quick synthesis of large-scale high-quality 2D materials films and their utilization in device fabrication.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Reina Hagiwara, Shun Nishimura, Kosuke Okeyoshi
Summary: A copolymer-conjugated nanocatalytic system has been developed to improve electron transfer and enhance photoinduced H2 generation.
CHEMICAL COMMUNICATIONS
(2024)
