Article
Engineering, Chemical
Qin Wu, Yan Sun, Wei Wang, Shuyao Tian, Mengjie Ouyang, Kangcheng Chen, Daxin Shi, Yaoyuan Zhang, Hansheng Li, Zhiping Zhao
Summary: A series of multiblock polydimethylsiloxane-b-polyimides copolymers were successfully prepared and their physicochemical properties, pervaporation properties, and thermal stability were studied. The results showed that the mechanical properties and swelling behavior of the membranes varied with different compositions of the copolymers.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Polymer Science
Tong Hoang Lin, Phan Thi Danh Toai, Ninh Thi Tinh, La Nam Phat, Le Minh Huong, Nguyen Duc Viet, Nguyen Minh Dat, Hoang Minh Nam, Mai Thanh Phong, Nguyen Huu Hieu
Summary: In this study, PDMS/TEOS hybrid materials with different TEOS ratios were synthesized and ceramic tube-supported membranes were fabricated. The results showed that the ceramic tube-supported PDMS/TEOS membranes exhibited good hydrophobicity and excellent thermal stability, and achieved high performance in the separation of furfural-water mixture by pervaporation.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Engineering, Environmental
Yong Pan, Tengyang Zhu, Qing Xia, Xi Yu, Yan Wang
Summary: This study successfully achieved efficient ethanol/water separation by constructing a superhydrophobic layer on a PDMS composite membrane, demonstrating outstanding pervaporation performance and providing meaningful guidance for organic recovery from aqueous solutions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Chemical
Zhihao Si, Hanzhu Wu, Peiyong Qin, Bart Van der Bruggen
Summary: Biofuels from biomass are being increasingly investigated as a response to the excessive consumption of petroleum-based fuels. The fermentation-separation coupled system, integrated with pervaporation (PV), has been developed to meet the high demands for biofuels. Polydimethylsiloxane (PDMS) based membranes are widely used and suggested to enhance the production and application of bioalcohols. However, there is a lack of comprehensive reviews on the latest progress of PDMS based membranes for biofuels pervaporation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Ayumi Ikeda, Chie Abe, Wakako Matsuura, Yasuhisa Hasegawa
Summary: The study investigated the influence of zeolite framework structure and composition on the permeation and separation performance of methanol through zeolite membranes. The results showed that the FAU-type zeolite membrane has the potential to separate organic solvent mixtures effectively.
Article
Nanoscience & Nanotechnology
Ufafa Anggarini, Liang Yu, Hiroki Nagasawa, Masakoto Kanezashi, Toshinori Tsuru
Summary: The nickel-doped bis [3-(trimethoxysilyl) propyl] amine (BTPA) derived membrane shows high potential for separating methanol-toluene azeotropic mixtures via pervaporation process, with improved separation performance as nickel concentration increases.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Chemical
Qing Wang, Nong Xu, Qiao Liu, Qiang Dong, Hiroki Nagasawa, Masakoto Kanezashi, Rongfei Zhou, Toshinori Tsuru
Summary: The physicochemical and pore structural variations of SiC-based membranes derived from different air-curing and pyrolysis temperatures were systematically investigated. The performance of these membranes in the separation of various organic mixtures was evaluated, with the most outstanding results achieved by SiC-based membranes with a pore size of 0.50 nm that were air-cured at 150 degrees C and pyrolyzed at 750 degrees C.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Wendel Paulo Silvestre, Jocelei Duarte, Isabel Cristina Tessaro, Camila Baldasso
Summary: This study developed non-supported and PET-supported chitosan membranes and evaluated their physical-chemical, morphological, and mechanical properties, as well as their performance in separating ethanol/water and limonene/linalool mixtures. The presence of a PET layer enhanced the mechanical properties of the membrane, while the support layer influenced the hydrophilic pervaporation parameters. However, overall, both membranes had similar performance in terms of pervaporation separation index. Therefore, the choice of membrane depends on specific applications requiring durability, higher flux, and selectivity.
Article
Engineering, Chemical
Wei-Min Liu, Heng Mao, Yu-Jie Wang, Shen-Hui Li, Ying-Nan Feng, Li-Hao Xu, Sen Wang, Chan Pei, Zhi-Ping Zhao
Summary: A novel approach of fabricating PDMS@ZIF-8/PVDF hollow fiber composite membrane (HFCM) modules for ethanol-water separation was presented in this study. The as-prepared membrane exhibited an ultrathin separation layer achieved through precise regulation of the ZIF-8 membrane and defect repair by PDMS infusion. At the optimal packing density, the membrane showed remarkable ethanol flux with high PSI value and promising long-term stability for pervaporation.
Article
Engineering, Chemical
Changchang Ma, Haiou Liu, Jieshan Qiu, Xiongfu Zhang
Summary: Fabricating a high-quality bimetallic Zn/Co-ZIF tubular membrane on a porous ceramic tube allows for efficient separation of methanol/methyltert-butylether mixture, demonstrating excellent separation performance and long-term stability.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Physical
Yu-Bo Tang, Shi-Jie Xie
Summary: This study presents a classical atomistic simulation investigation of the structure and dynamics of a water/methanol mixture confined in a flexible nanoporous zeolitic imidazolate framework, ZIF-8. The findings reveal that methanol molecules can be seen as being sandwiched between water molecules, forming a specific structure. The self-diffusion coefficient of confined water is significantly smaller than that of bulk water, and it shows a non-monotonic dependence on loading. Moreover, the hydrogen bond network of confined water molecules displays distinct differences from bulk water. This detailed understanding of the properties of water/methanol mixture in ZIF-8 confinement provides insights that can contribute to the development of improved alcohol dehydration processes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Engineering, Chemical
Chengye Zuo, Jake Hindley, Xiaobin Ding, Mark Gronnow, Weihong Xing, Xuebin Ke
Summary: Pervaporation shows great potential in separating butanol isomers in aqueous solution using polydimethylsiloxane (PDMS) composite membrane. The study found differences in contact angles and fluxes of butanol isomers on the PDMS layer, and successfully introduced the similar compatibility principle into the series resistance model.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Houchao Shan, Shufeng Li, Xinmiao Zhang, Fanning Meng, Yan Zhuang, Zhihao Si, Di Cai, Biqiang Chen, Peiyong Qin
Summary: This study proposed the use of vinyl-modified PDMS membrane for furfural separation, with molecular dynamics simulation showing the beneficial effects of vinyl group. The results demonstrate that the vinyl-modification can significantly improve the separation performance of the PDMS membrane.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Xiaotong Cao, Lina Qiu, Xianshe Feng
Summary: This study focused on the fundamental aspects of aniline solubility, diffusivity, and permeability in PEBA 2533, with an emphasis on aniline removal from water through pervaporation and sorption methods. The membrane showed high permselectivity for aniline separation, with caution needed in determining membrane permeability based on different measurement techniques and proper conversions for the data. The investigation also looked into sorption-desorption reversibility, which was relevant to aniline removal from water by cyclic sorption/desorption and steady state pervaporative separation.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Xiao Xu, Yusak Hartanto, Daria Nikolaeva, Zirui He, Sara Chergaoui, Patricia Luis
Summary: This study successfully separated the binary mixture of dimethyl carbonate (DMC) and methanol (MeOH) using pervaporation. By incorporating ZIF-8 fillers into chitosan (CS) matrix, mixed matrix membranes (MMM) with exceptional separation performance were prepared.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Yukun Bai, Yuqi Wang, Weijian Yuan, Wen Sun, Guoxia Zhang, Lan Zheng, Xiaolong Han, Lifa Zhou
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2019)
Article
Engineering, Chemical
Xiaolong Han, Tingting Hu, Ye Wang, Huiyong Chen, Yuqi Wang, Ruiqing Yao, Xiaoxun Ma, Jiding Li, Xifei Li
SEPARATION AND PURIFICATION TECHNOLOGY
(2019)
Article
Materials Science, Characterization & Testing
Yingying Zhou, Mingfeng Chang, Xiyu Zang, Lan Zheng, Yuqi Wang, Le Wu, Xiaolong Han, Yuqing Chen, Yunsong Yu, Zaoxiao Zhang
Article
Engineering, Chemical
Le Wu, Yuqi Wang, Lan Zheng, Xiaolong Han
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2019)
Article
Chemistry, Physical
Xiyu Zang, Mingfeng Chang, Lan Zheng, Yingying Zhou, Yuqi Wang, Jiahao Ren, Le Wu, Xiaolong Han, Qian Wang, Jinqiao Wu
JOURNAL OF MOLECULAR LIQUIDS
(2020)
Article
Polymer Science
Caibin Cai, Xiaotao Fan, Xiaolong Han, Jiding Li, Harsh Vardhan
Article
Nanoscience & Nanotechnology
Hexiang Sun, Zachary Magnuson, Wenwen He, Weijie Zhang, Harsh Vardhan, Xiaolong Han, Gaohong He, Shengqian Ma
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Engineering, Chemical
Xiaotao Fan, Caibin Cai, Jian Gao, Xiaolong Han, Jiding Li
SEPARATION AND PURIFICATION TECHNOLOGY
(2020)
Article
Chemistry, Multidisciplinary
Harsh Vardhan, Abdullah M. Al-Enizi, Ayman Nafady, Yanxiong Pan, Zhongyu Yang, Humberto R. Gutierrez, Xiaolong Han, Shengqian Ma
Summary: The exponential growth in the field of covalent-organic frameworks (COFs) is attributed to the direct correlation between designing principles and desired properties. The comparison of catalytic activity between single-pore and dual-pore COFs is crucial for establishing a structure-function relationship. By synthesizing imine-linked dual-pore COFs with controllable bipyridine content, this study demonstrates efficient catalytic active sites for selective functionalization of sp(2)C-H bonds to C-X (X = Br, Cl) or C-O bonds. The comparison between palladium decorated dual-pore frameworks and single-pore imine-linked Pd(II) @ Py-2,2'-BPyDC framework provides insights into the relationship between catalytic activity and core properties of rationally designed frameworks.
Article
Chemistry, Multidisciplinary
Ming-Liang Sun, Yi-Rong Wang, Wen-Wen He, Rong-Lin Zhong, Qing-Zhi Liu, Shiyou Xu, Jing-Mei Xu, Xiao-Long Han, Xueying Ge, Shun-Li Li, Ya-Qian Lan, Abdullah M. Al-Enizi, Ayman Nafady, Shengqian Ma
Summary: A series of mixed-valence POM-based metal-organic frameworks (MOFs) composites were synthesized by combining the advantages of POMs and catalytic single-metal site Co, showing enhanced electron transfer properties and efficient CO2 reduction performance.
Article
Chemistry, Physical
Hongpeng Gou, Wenbin Li, Yifan Yang, Xudong Li, Honglan Cui, Yan Liu, Jingyu Wang, Alibek Kakimov, Jingjing Wang, Wenyan Shi, Yiliang Yan, Junhua Hu, Xiaolong Han, Xifei Li
Summary: This study successfully developed a new method to coat Co/N-C onto commercial separators, which showed significant advantages in wettability, thermal stability, ionic conductivity, and cycling stability.
JOURNAL OF POWER SOURCES
(2021)
Article
Engineering, Chemical
Wenyan Shi, Xiaolong Han, Fang Bai, Chao Hua, Xingzhong Cao
Summary: Synthesis of metal-organic framework MOF-505 particles and their incorporation into a polyethylene glycol matrix led to improved desulfurization performance in mixed matrix membranes. The membrane with 3 wt% MOF-505 showed optimal desulfurization performance, with a permeation flux and enrichment sulfur factor increased by 158% and 25% compared to the pristine membrane, respectively.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Wenhao Zou, Hongtao Shang, Xiaolong Han, Peng Zhang, Xingzhong Cao, Ping Lu, Chao Hua
Summary: New robust membrane materials for separating carbon dioxide are gaining more attention. In this study, three polyphosphazene materials were synthesized and corresponding composite membranes were prepared. Gas permeation tests showed that POA/PVDF membrane had the highest CO2 permeability due to the largest free volume.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Zhesai Zhao, Qingwen Han, Wenwen He, Xiaolong Han
Summary: In this study, a ZIF-8@PEBAX/PVDF nanocomposite membrane was fabricated using a novel approach of self-assembly and in-situ growth. The membrane showed significantly improved separating efficiency for removing thiophene from model gasoline compared to pristine PEBAX membrane.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Xingmei Zhang, Ye Wang, Min Xue, Qingwen Han, Xiaolong Han
Summary: In this study, MnO2-PVDF ultrafiltration membranes were prepared by incorporating MnO2 nanowires. The characterization results showed that increasing MnO2 content improved the hydrophilicity and smoothness of the membranes. The membrane with 1.5 wt% MnO2 nanowire content exhibited the best water flux and BSA rejection, and showed effective oil rejection.
MATERIALS TODAY COMMUNICATIONS
(2023)