Article
Engineering, Environmental
Charmaine Jia Mei Lye, Huijuan Xu, Rong Wang
Summary: The study demonstrates that reinforced PVDF hollow fiber membranes have excellent mechanical strength and resistance to chlorine, maintaining good membrane performance even after prolonged exposure to NaOCl.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Environmental Sciences
Kaikai Chen, Wei Zhao, Changfa Xiao, Hui Zhu, Qiming Wang
Summary: This study investigated the fouling mechanism of different polyvinylidene fluoride hollow fiber membranes in membrane bioreactor systems. The results showed that the homogeneous-reinforced polyvinylidene fluoride (HMR-PVDF) membrane exhibited better fouling resistance compared to the heterogeneous-reinforced polyvinylidene fluoride (HTR-PVDF) membrane.
Article
Engineering, Environmental
Chuanfeng Wang, Yingbo Chen, Xiaoyu Hu, Pengfei Guo
Summary: A dual-layer PVDF loose nanofiltration hollow fiber membrane with desirable properties was designed via phase inversion process, demonstrating low MWCO and excellent separation performance.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Engineering, Environmental
Nurul Syazana Fuzil, Nur Hidayati Othman, Nur Hashimah Alias, Fauziah Marpani, Muhammad Shafiq Mat Shayuti, Munawar Zaman Shahruddin, Mohd Rizuan Mohd Razlan, Norazah Abd Rahman, Woei Jye Lau, Mohd Hafiz Dzarfan Othman, Ahmad Fauzi Ismail, Tutuk Djoko Kusworo, Anwar Ul-Hamid
Summary: In this study, the performance of membrane distillation (MD) was improved by coating MoS2-TiO2 on a PVDF-based hollow fiber membrane. The MoS2-TiO2/PP20 membrane showed enhanced hydrophobicity and porosity, leading to significantly improved MD performances. This work suggests that the MoS2-TiO2 coating can overcome the typical permeability/rejection rate trade-off effect and play a significant role in enhancing MD performances.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Chemical
Baiwang Zhao, Gui Min Shi, Kai Yu Wang, Juin-Yih Lai, Tai-Shung Chung
Summary: A solvent resistant polybenzimidazole (PBI) hollow fiber membrane was designed and cross-linked with a K2S2O8 aqueous solution, significantly improving membrane stability and mechanical properties. The cross-linked PBI hollow fiber membrane showed high rejection rates for Rose Bengal in acetone, making it suitable for solvent resistant nanofiltration applications. Recommendations include a module configuration where one end of the hollow fibers is free from the module housing to mitigate damage from membrane swelling during organic filtration.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Dong Zou, Hyun Woo Kim, Seong Min Jeon, Young Moo Lee
Summary: High-tensile strength and water-permeable hollow-fiber membranes composed of PVDF and PSF were prepared using phase inversion. The addition of Pluronic and PDA-assisted TiO2 coating enhanced adhesion and stability of the membranes, leading to enhanced separation performance of micro-and nano-sized O/W emulsions.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Dong Zou, Seong Min Jeon, Hyun Woo Kim, Joon Yong Bae, Young Moo Lee
Summary: PVDF membranes with inorganic layers showed improved mechanical strength and reduced membrane roughness, with tunable water permeance. These composite membranes exhibited enhanced separation performance and anti-fouling properties, with BSA rejection up to 95% and FRR of 72.2%. The in-situ grown inorganic layers effectively prevented fouling and were easily washed by hydraulic method.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Materials Science, Paper & Wood
Wei Zhao, Xin Jin, Kaikai Chen, Haoyang Ling, Zuwei Fan, Changfa Xiao
Summary: In this research, the hydrophilicity and anti-fouling property of cellulose acetate membranes were improved through the doping of graphene oxide (GO). The fabricated hollow fiber membranes with GO-doping exhibited a neatly arranged finger-like pore structure and good permeability. The membranes also showed high protein rejection and anti-fouling property. The optimal GO content was determined to be 0.1 wt%, and the membranes were suitable for high pressure backwash and aeration processes in filtration systems. Overall, the GO-doped cellulose acetate hollow fiber membranes showed potential applications in wastewater treatment and biomedical processes.
Article
Engineering, Chemical
Tianshi Yang, Chun Feng Wan, Junyou Zhang, Chakravarthy Gudipati, Tai-Shung Chung
Summary: A novel interfacial polymerization method was proposed to fabricate TFC hollow fiber membrane modules for RO applications, successfully addressing the challenge of synthesizing defect-free polyamide selective layer. By circulating MPD and TMC solutions on different pressures to form a strong, uniform, and defect-free polyamide selective layer on the inner surface. Experimental results showed that the TFC hollow fiber membrane module prepared by this method exhibited good RO performance.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Pengfei Zhang, Saeid Rajabzadeh, Titik Istirokhatun, Qin Shen, Yuandong Jia, Xuesong Yao, Antoine Venault, Yung Chang, Hideto Matsuyama
Summary: A simple approach to immobilize zwitterionic copolymers on PVDF hollow fiber membranes with high stability is proposed. The modified membrane exhibits excellent antifouling and antibacterial properties, suitable for dynamic filtration.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Hanhan Chen, Claudia Li, Lu Liu, Bo Meng, Naitao Yang, Jaka Sunarso, Lihong Liu, Shaomin Liu, Xiaobin Wang
Summary: In this study, Co-based zeolitic imidazolate framework-67 (ZIF) membranes were successfully developed on porous ZnO hollow fibers using an in situ solvothermal growth method. The resulting membranes exhibited desirable permeation performance, ideal selectivities for single gas, and separation factors for gas mixtures. The membranes also displayed good stability in terms of gas permeances and showed excellent thermal stability. The development of these membranes provides important insights for the advancement of efficient gas separation technologies.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Environmental
Dawei Ji, Yifei Gao, Wanning Wang, Haowei Feng, Kaikai Chen, Changfa Xiao
Summary: Poly(vinylidene fluoride) (PVDF) hollow fiber membranes were prepared through melt spinning method with CaCl2 and PEG as composite pore forming agents. The addition of PEG effectively improved the membrane's pore structure and permeation performance, while reducing the water contact angle and liquid entry pressure. The membranes also exhibited good oil/water separation performance.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Dawei Ji, Weijia Lin, Guangwu Sun, Xuyong Tian, Xixian Ma, Changfa Xiao
Summary: In this work, graphene was doped into the forming membrane system to prepare poly(vinylidene fluoride) (PVDF) hollow fiber microfiltration membranes with multiple interface pores. The results showed that graphene could significantly improve the pore size and porosity of the membranes, leading to an increase in pure water flux. The prepared membranes exhibited high rejection and turbidity reduction when filtering active sludge suspension, and the preparation process was environmentally friendly without the use of hazardous solvents.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Qin Wang, Huizi Li, Xiaojie Liu, Tingyao Du, Jianyu Guo, Siyong Zhang, Yan Lu
Summary: A carbon-based monolith with a hierarchical porous structure, derived from PVDF hollow fiber membranes, is reported in this study. The treatment of PVDF membranes with VTMS and subsequent low-temperature calcination results in a carbon-based material with a honeycomb porous structure, which enhances the electrochemical activity. The assembled supercapacitor demonstrates high specific capacitance and cycling stability.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Polymer Science
Adriana Popa, Maria Stefan, Sergiu Macavei, Ioana Perhaita, Lucian Barbu Tudoran, Dana Toloman
Summary: In this study, CoFe2O4-PVDF and CoFe2O4-ZnO-PVDF hybrid membranes were prepared using a modified phase inversion method with the application of a magnetic field. The addition of nanomaterials improved the hydrophilicity properties of the PVDF membrane and significantly influenced its intrinsic properties.
Article
Statistics & Probability
Wanbin Li, Liugen Xue, Peixin Zhao
Summary: In this paper, the authors investigate the inference problem of varying coefficient panel data models with fixed effect using empirical likelihood. They propose a naive empirical likelihood ratio and a residual-adjusted empirical likelihood ratio, and analyze their properties. The performance of these methods is evaluated through numerical simulations and a real data analysis.
COMMUNICATIONS IN STATISTICS-THEORY AND METHODS
(2022)
Article
Chemistry, Multidisciplinary
Siyi Rong, Pengcheng Su, Shizheng Chen, Miaomiao Jia, Wanbin Li
Summary: In this study, polymers with hydrophobic pores (PIMs) were used to decorate metal-organic frameworks (MOFs) in order to improve their water stability and shapeability. The results showed that the decorated MOFs exhibited impressive water resistance and pore preservation ability, making them suitable for the fabrication of oil-water separators.
CHINESE CHEMICAL LETTERS
(2022)
Article
Engineering, Chemical
Pengcheng Su, Huiyu Tang, Miaomiao Jia, Yanshan Lin, Wanbin Li
Summary: The study demonstrates that vapor linker exchange can induce partial amorphization of MOF membranes, reducing their transport pathways and improving molecular sieving performance.
Article
Nanoscience & Nanotechnology
Qun Wan, Lu Huang, Long Kong, Qinggang Zhang, Congyang Zhang, Mingming Liu, Xinrong Liao, Wenji Zhan, Weilin Zheng, Changwei Yuan, Mengda He, Liang Li
Summary: In the field of translucent displays, using an alkali metal/inert metal bilayer metal electrode and perovskite nanocrystals as an emitter layer allows for the fabrication of high-efficiency, high-color-purity, and high-brightness semitransparent LEDs, with great potential for applications.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Environmental
Miaomiao Jia, Siyi Rong, Pengcheng Su, Wanbin Li
Summary: By introducing defects, the adsorption performance of crystalline porous materials can be improved, and the iodine capture capacity can be significantly enhanced. This defect design strategy plays an important role in the microstructural engineering.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Wanbin Li, Yanshan Lin, Pengcheng Su
Summary: In this study, guest-host dual MOF@MOF heterosystems were designed and constructed using vapor linker processing. These heterosystems exhibited tailored dual pore geometries, enhanced affinities to gas molecules, and combined advantages of different MOFs. The MOF@MOF composites showed substantially improved compatibility toward polymers and could adjust membrane transport pathways for achieving outstanding carbon capture performance.
APPLIED MATERIALS TODAY
(2022)
Article
Engineering, Environmental
Weilu Yang, Mingshan Zhu, Wanbin Li, Guoqiang Liu, Eddy Y. Zeng
Summary: In this study, flexible nanocatalysts with self-regulated metal oxide nanoparticles were synthesized for efficient removal of plasticizers from wastewater. The nanocatalysts showed higher decay kinetics for plasticizers compared to other systems, while also reducing the disposal cost.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Baian Kuang, Xiangmei Xiang, Pengcheng Su, Wulin Yang, Wanbin Li
Summary: This study presents a high-performance and stable two-dimensional framework membrane for water purification and remediation, which is self-assembled by graphene oxide nanosheets and aminoappended metal-organic polyhedrons. The framework membrane shows improved stability and nanofiltration performance, and high rejections for various contaminants in wastewaters.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Chemical
Lidan Chen, Pengcheng Su, Jiandang Liu, Shizheng Chen, Junping Huang, Xinxi Huang, Hongjun Zhang, Bangjiao Ye, Wulin Yang, Wanbin Li
Summary: This study presents a facile chemical vapor amination strategy to enhance the carbon capture performance of polymer membranes. By exposing the membranes to amine vapors, the sorption and diffusion processes of gases can be tuned, leading to improved CO2/N2 selectivity and permeability.
Article
Engineering, Chemical
Junping Huang, Huiyu Tang, Xinxi Huang, Zeyang Feng, Pengcheng Su, Wanbin Li
Summary: Membrane processes are more efficient and sustainable for separations, but the trade-off between permeability and selectivity limits their performance. Mixed matrix membranes (MMMs) are effective in improving molecular selectivity, but achieving uniform filler dispersion and strong filler-matrix interaction is challenging. This study develops a versatile concept guided by Hansen solubility parameters (HSPs) to design high-performance MMMs.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Wulin Yang, Li Long, Hao Guo, Chenyue Wu, Shenghua Zhou, Ying Mei, Lu Elfa Peng, Wenyu Liu, Zhe Yang, Wanbin Li, Chuyang Y. Tang
Summary: This study proposes a strategy of using NaOH-promoted interfacial polymerization to improve water recovery in groundwater remediation by nanofiltration membranes. By adjusting the asymmetric selectivity of the membrane towards calcium ions over sulfate ions, the scaling potential is reduced, leading to high water recovery.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Wanbin Li, Pengcheng Su, Huiyu Tang, Yanshan Lin, Yanqing Yu
Summary: This report presents a one-pot synthesis method for the simultaneous hetero-crystallization and hetero-linker coordination of metal-organic framework (MOF) hollow fiber membranes, leading to precise gas separation. The prepared membranes exhibit improved selectivity and permeance through hetero-linker exchange and framework rigidification.
Article
Chemistry, Multidisciplinary
Qun Wan, Qinggang Zhang, Jinlong Guo, Mingming Liu, Wenji Zhan, Xinrong Liao, Changwei Yuan, Mengda He, Weilin Zheng, Congyang Zhang, Long Kong, Liang Li
Summary: In this study, researchers used a conjugated polymer as the electron transport layer to fabricate the inverted opaque and semitransparent perovskite light-emitting diodes. The maximum external quantum efficiency and luminance were significantly improved through device optimization in the opaque LED. The corresponding semitransparent device also demonstrated high transmittance and brightness for both the bottom and top sides.
Article
Chemistry, Multidisciplinary
Tianhao Wu, Luis K. Ono, Rengo Yoshioka, Chenfeng Ding, Congyang Zhang, Silvia Mariotti, Jiahao Zhang, Kirill Mitrofanov, Xiao Liu, Hiroshi Segawa, Ryota Kabe, Liyuan Han, Yabing Qi
Summary: Nickel oxide (NiOx) is a promising hole-selective contact for efficient perovskite solar cells (PSCs), but its long-term operational lifetime is limited by light-induced degradation. This study clarifies the degradation mechanism and proposes a solution by constructing a TMSBr buffer layer, resulting in significantly improved operational lifetimes for NiOx-based PSCs.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Qinggang Zhang, Mengda He, Qun Wan, Weilin Zheng, Mingming Liu, Congyang Zhang, Xinrong Liao, Wenji Zhan, Long Kong, Xiaojun Guo, Liang Li
Summary: By passivating the surface defects and constructing a core-shell structure of CsPbBr3 nanocrystals, the thermal quenching behavior of light emission is effectively suppressed, leading to improved stability of emission intensity. Based on these thermally stable nanocrystals, temperature-stable white LED devices are achieved.
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)
