Article
Engineering, Chemical
Miaomiao Tian, Junyong Zhu, Shushan Yuan, Yatao Zhang, Bart Van der Bruggen
Summary: The study demonstrates that by co-casting to reduce the solvent/nonsolvent exchange rate at the same time, PVDF membranes with uniformly rough surface structures can be effectively fabricated, facilitating the membrane distillation process. The PVDF concentration significantly affects membrane morphology, with increasing PVDF content leading to different phase inversion mechanisms.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Physical
Li-Jing Zhu, Ming Yang, Gang Wang, Zhi-Xiang Zeng, Zheng-Feng Jia
Summary: Superoleophobic and anti-oil adhesion membranes were prepared using vapor-induced phase separation and sulfonated dopamine deposition. The resulting membranes showed excellent performance in removing emulsified toluene from water.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Engineering, Chemical
Yewen Xiao, Feng Xiao, Wei Ji, Li Xia, Linlin Li, Minmin Chen, Hualin Wang
Summary: Janus membranes with unique asymmetric wettability have been developed for oil-water separation. The membrane exhibits superhydrophilicity and superhydrophobicity on opposite sides, which contribute to excellent separation efficiency. The separation mechanism is based on the asymmetric wettability. The membrane shows potential for the separation of oil/water mixtures and surfactant-stabilized emulsions.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Review
Environmental Sciences
R. Suresh, Saravanan Rajendran, Lalitha Gnanasekaran, Pau Loke Show, Wei-Hsin Chen, Matias Soto-Moscoso
Summary: This review investigates the application of PVDF-based nanomembranes in the removal of synthetic dyes. Various methods, including surface coating and blending, were discussed for fabricating high performance PVDF-based nanomembranes. The incorporation of nanomaterials such as metal compounds, metals, (synthetic/bio)polymers, metal organic frameworks, carbon materials and their composites in PVDF membranes to enhance their performance was also explored. The impact of nanomaterials on the surface features, mechanical strength, hydrophilicity, crystallinity, and catalytic ability of PVDF membranes was discussed, along with future research directions.
Article
Engineering, Chemical
Shaobo Zhang, Yi Li, Yan Yuan, Li Jiang, Haitao Wu, Yanmao Dong
Summary: Membrane separation is an effective method for treating oily wastewater. This study improved the efficiency of oil-in-water emulsion separation by using alkali treatment to promote the deposition of Fe (III) on PVDF membranes. A hydrophilic coating was also produced on the membrane surface, enhancing permeability and antifouling properties. The modified membrane showed excellent pure water flux and oil rejection, as well as underwater anti-oil adhesion and antifouling properties. This environmentally friendly PVDF membrane modification strategy has great potential for oil-in-water emulsion separation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Rosalin Rath, Piyush Kumar, Lakshmi Unnikrishnan, Smita Mohanty, Sanjay K. Nayak
Summary: This study successfully fabricated nanocomposite membranes with high ion exchange capacity and proton conductivity, suitable for fuel cell applications. The membranes demonstrated excellent conductivity at high temperatures, suppressed methanol crossover, and higher membrane selectivity compared to Nafion, suggesting their potential as an alternative in fuel cell applications.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Zhihao Gao, Rongyan Wen, Hua Deng, Lin Luo, Xiaochen Cui, Zhen Yang, Zongmin Zheng, Jianmin Zhang
Summary: In this study, the possibility of utilizing 2D nickel hydroxide nanosheets (NHNs) to prepare composite membranes was explored. The effect of NHNs on the properties of the membranes was investigated, and it was found that a low filler content led to improved thermal stability, crystallization behaviors, electrolyte affinity, and ionic conductivity. The composite membrane also demonstrated good cycling performance and rate capability in Li/LiFePO4 half-cells.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Polymer Science
Amjad Albiladi, Lassaad Gzara, Hussam Organji, Nazeeha S. Alkayal, Alberto Figoli
Summary: The major challenge in membrane distillation (MD) is membrane wetting caused by pollutants. This study focused on fabricating hydrophobic membranes for brine treatment using electrospun PVDF-HFP nanofiber membranes. The effects of solvent composition and polymer concentration on the electrospinning process were investigated, and post-treatment was carried out to optimize membrane performance.
Article
Engineering, Chemical
Antoine Venault, Yi-Tung Chin, Irish Maggay, Chih-Chen Yeh, Yung Chang
Summary: This work investigates the association of P(S-r-AA) copolymer with PVDF in the fabrication of electrospun fibers for blood filtration, showing improved wetting of nanofibers and enhanced separation and retention of white blood cells. The results demonstrate the potential of PVDF-based nanofibers as efficient separation media for whole blood, with further efforts needed to enhance biocompatibility and red blood cell recovery.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Jiale Fang, Chengqi Chen, Hongxing Qi, Jie Zhang, Xiaoxuan Hou, Likun Pan, Xianghui Wang
Summary: Developing flexible electromagnetic interference (EMI SE) shielding materials is crucial for protecting humans from harmful radiation. We designed and fabricated a flexible multilayer structure of PVDF/GNP-PVDF composite film, which exhibited high EMI SE performance (averaging 69.7 dB in X-band), excellent flexibility, and stability (98.85% retention after bending 1000 cycles at 60 degrees). The theoretical study indicates that the multiple reflection and absorption of electromagnetic waves between layers contribute to the high EMI SE performance of the PVDF/GNP-PVDF multilayer film.
ACS APPLIED NANO MATERIALS
(2023)
Article
Engineering, Environmental
Hai-Ming Song, Li-Jing Zhu, Gang Wang, Hao Yang, Zhi-Xiang Zeng, Ling-Hui Wang
Summary: PVDF porous membranes prepared by non-solvent induced phase separation exhibit various crystalline forms and micro/nanostructures, showing excellent oil permeation resistance and outstanding antifouling properties.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Polymer Science
Yin Tang, Tang Zhu, Huichao Liu, Zheng Tang, Xingwen Kuang, Yongna Qiao, Hao Zhang, Caizhen Zhu
Summary: Poly(2-acrylamido-2-methyl-1-propanesulfonic acid)/beta-FeOOH-coated poly(vinylidene fluoride) membranes with outstanding superhydrophilicity/underwater superoleophobicity and excellent separation and photocatalytic properties have wide potential applications in the fields of oil/water separation and wastewater treatment.
Article
Engineering, Chemical
Chao Wei, Cheng-Lin Wang, Ying-Jie Hao, Xuan Zhang, Ji-Sheng Long, Wan-Zhong Lang
Summary: Construction of separation membranes with underwater super-oleophobic property is a promising approach for oily wastewater treatment, but current methods face challenges such as time-consuming preparation and unstable membranes. In this study, alkali-induced hydroxylation and nature-inspired coordination coating were used to modify poly (vinylidene fluoride) (PVDF) membranes. The modified membranes exhibited excellent hydrophilicity and specific hierarchical roughness, resulting in hydrophilic/underwater super-oleophobic properties. The optimized membrane showed improved flux and oil rejection in treating two simulated oil-in-water emulsions, along with enhanced antifouling behavior and membrane stability.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Polymer Science
Norhan Nady, Noha Salem, Sherif. H. Kandil
Summary: In this work, a novel polymeric membrane was developed with high porosity, hydrophobic surface, and water vapor permeability, suitable for membrane distillation. The membrane showed good efficiency in properties and features, comparable to commercially available MD membranes in terms of performance and economic value.
Article
Polymer Science
Nikruesong Tohluebaji, Chatchai Putson, Nantakan Muensit, Jureeporn Yuennan
Summary: This study investigates the electrostrictive and structural properties of P(VDF-HFP) nanofibers modified with conductive polymer polyaniline (PANI). The composite nanofibers showed uniform fibers without bead formation, with decreased water contact angle and increased dielectric properties and electromechanical response as the PANI content increased. The results suggest that P(VDF-HFP)/PANI composite nanofibers may offer a promising route for electrostrictive applications in actuation, MEMS, and sensors.
Article
Materials Science, Multidisciplinary
Xu Zhao, Min Zhou, Qingyu Peng, Renjie Ding, Pengyang Li, Qiang Chen, Liangliang Xu, Xiaodong He
ADVANCED ENGINEERING MATERIALS
(2020)
Article
Nanoscience & Nanotechnology
Liangliang Xu, Qingyu Peng, Xu Zhao, Pengyang Li, Jiahui Xu, Xiaodong He
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Engineering, Multidisciplinary
Zonglin Liu, Xu Zhao, Liangliang Xu, Qingyu Peng, Xiaodong He
Summary: Egg custard can be used as a precursor for nitrogen-doped porous carbons, which exhibit excellent electromagnetic wave absorption properties. The carbon materials inherit unique morphologies from the protein in the egg custard, and the resulting porous carbons show superior performance in reflection loss and absorption bandwidth.
Article
Chemistry, Physical
Liangliang Xu, Fuhua Xue, Haowen Zheng, Qixiao Ji, Changwen Qiu, Zhong Chen, Xu Zhao, Pengyang Li, Ying Hu, Qingyu Peng, Xiaodong He
Summary: In this study, a tetherless soft actuator based on MXene is designed to mimic the jumping mechanism of insect larvae, allowing for adjustable jumping motions controlled by light.
Article
Chemistry, Multidisciplinary
Fuhua Xue, Qingyu Peng, Zonglin Liu, Pengyang Li, Xu Zhao, Haowen Zheng, Zhong Chen, Liangliang Xu, Jinhua Xiong, Xiaodong He
Summary: Researchers have designed a carbon nanotube network with gradient stiffness, allowing for rapid deformation and directional thrust output through solvent stimuli.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Article
Chemistry, Physical
Zonglin Liu, Guanghui Wang, Pengyang Li, Fuhua Xue, Zhong Chen, Haowen Zheng, Renjie Ding, Jinhua Xiong, Qian Yan, Liangliang Xu, Xu Zhao, Qingyu Peng, Xiaodong He
Summary: With the increasing severity of electromagnetic pollution, there is an urgent need for efficient electromagnetic interference (EMI) shielding materials that are lightweight, possess elegant mechanical behavior, and have a designable structure. The use of multiple reflections within materials can effectively improve the EMI shielding efficiency, making it a priority when designing EMI shielding materials. Inspired by the fabrication of toasts, the dough can be stretched into extremely thin sheets, resulting in the micro components being arranged in-plane within the porous carbon, leading to an anisotropic EMI shielding performance. Additionally, the replacement of water with graphene oxide (GO) solution and the stretching of GO@dough into thin sheets with in-plane oriented GO nanosheets further enhance the EMI shielding performance.
Article
Chemistry, Multidisciplinary
Jinquan Liu, Liangliang Xu, Qixiao Ji, Longfei Chang, Ying Hu, Qingyu Peng, Xiaodong He
Summary: The study introduces dynamic light-mechanical interaction and designs a self-adaptive actuator driven by light. The actuator can autonomously track light and exhibit sunflower-like phototropism. Moreover, by installing a load and inducing a self-shadowing-enabled negative feedback loop, it can continuously oscillate under constant light irradiation.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Zonglin Liu, Fuhua Xue, Xu Zhao, Zhong Chen, Haowen Zheng, Renjie Ding, Pengyang Li, Liangliang Xu, Jinhua Xiong, Qingyu Peng, Xiaodong He
Summary: It has been found that dispersing MXenes in a coral-like structure on the surface of a sponge, instead of participating in the assembly of the framework, effectively suppresses self-restacking of MXene, improves the sponge's hydrophilicity, and provides fast diffusion channels for electrolyte ions. Therefore, the MXene-TiC-reduced graphene oxide sponge exhibits excellent electrical conductivity, enormous specific surface area, and superior electrochemical performance as a Zinc-ion hybrid supercapacitor cathode. It surpasses most leading MXene-based Zn-ion cathodes and provides a new synthetic idea for MXene-based macro-composites and designing next-generation flexible and portable porous electrodes.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Liangliang Xu, He Chen, Pingyu Zheng, Haowen Zheng, Zhong Chen, Zonglin Liu, Pengyang Li, Xu Zhao, Qingyu Peng, Xiaodong He
Summary: Two-dimensional MXenes have great potential in flexible piezoresistive sensors. However, pure MXene aerogels suffer from weak interactions between nanosheets, resulting in poor mechanical properties. In this study, MXene/polyimide/silver nanowire composite aerogels with aligned lamellar microstructure were fabricated, greatly improving the mechanical properties. The obtained lightweight composite aerogels exhibit superelasticity, compressibility, stability, and fatigue resistance, while also showing excellent sensing performance.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Zhong Chen, Qingyu Peng, Ying Hu, Zonglin Liu, Xu Zhao, Pengyang Li, Liangliang Xu, Haowen Zheng, Fuhua Xue, Renjie Ding, Xiaodong He
Summary: Exploring high-performance soft actuators from biomass resources is crucial for developing ecofriendly smart devices. A moisture-responsive DB film actuator with a gradient structure, made from dried bonito flake, exhibits rapid and reversible bending deformation triggered by a humidity gradient. The actuator shows potential applications in various fields and offers a cost-effective and environmentally benign strategy for moisture-responsive actuators.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Zhong Chen, Bo Gao, Pengyang Li, Xu Zhao, Qian Yan, Zonglin Liu, Liangliang Xu, Haowen Zheng, Fuhua Xue, Renjie Ding, Jinhua Xiong, Zhigong Tang, Qingyu Peng, Ying Hu, Xiaodong He
Summary: We report a biomass-based multistimuli-responsive actuator using cuttlefish ink nanoparticles, wood-derived cellulose nanofiber, and bioderived polylactic acid. This actuator can undergo reversible deformation under near-infrared light, humidity, and temperature stimuli, and has demonstrated various programmable shape-morphing capabilities. It has also been applied as an untethered grasping robot, weightlifting robot, and climbing robot.
Article
Chemistry, Multidisciplinary
Fuhua Xue, Haowen Zheng, Qingyu Peng, Ying Hu, Xu Zhao, Liangliang Xu, Pengyang Li, Yue Zhu, Zonglin Liu, Xiaodong He
Summary: The research developed a carbon nanotube sponge with gradient stiffness, showing high sensitivity and wide range performance. It can detect various levels of stress while maintaining the integrity of the conductive network, indicating great potential for future sensing applications.
MATERIALS HORIZONS
(2021)
Article
Nanoscience & Nanotechnology
Yue Zhu, Qingyu Peng, Yuyang Qin, Xu Zhao, Liangliang Xu, Qiang Chen, Ying Li, Zhonghai Xu, Xiaodong He
ACS APPLIED NANO MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Liangliang Xu, Qingyu Peng, Yue Zhu, Xu Zhao, Minglong Yang, Shasha Wang, Fuhua Xue, Ye Yuan, Zaishan Lin, Fan Xu, Xianxian Sun, Jianjun Li, Weilong Yin, Yibin Li, Xiaodong He
