SEPARATION AND PURIFICATION TECHNOLOGY
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2016
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IF 3.299
Haiye Wang,Xinzhen Zhao,Chunju He
The polydimethylsiloxane modified silica (SiO 2 -g-PDMS) nanoparticles with hydrophilic core and hydrophobic shell are employed for the hybridization modification of PVDF ultrafiltration membrane to improve the separation and antifouling performances. The results suggest the modified SiO 2 -g-PDMS nanoparticles exhibit improved dispersion and significant amphiphilic characteristics, and the wetting properties of membrane surface and mimetic matrix of hybrid PVDF membranes are distinctly different with the contact angle values at 105° and 15°, respectively. In addition, the added SiO 2 -g-PDMS nanoparticles significantly improve the fouling repulsion and fouling release properties of hybrid PVDF membranes, the anti-adsorption ability and water flux recovery ratio (FRR-W) of hybrid PVDF membranes to the two typical pollutants of bovine serum albumin (BSA) and humic acid (HA) have been significantly improved. This article aims to provide a simple way to improve the antifouling performance of PVDF ultrafiltration membrane with dual-mode multi-functional modifier.
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2017
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IF 5.401
Qi Song,Jingjing Sun,Ying Mu,Yanan Xu,Qiangyuan Zhu,Qinhan Jin
A novel method for making Parylene C-coated PDMS microfluidic chips is presented for the first time here. This method can maintain the vacuum-driven power of PDMS microfluidic chips for more than 30 days. Parylene C membrane has quite low permeability to water vapor and gases such as nitrogen and oxygen. In addition, Parylene C membrane is transparent and has chemical inertness. Thus, the detection of reaction results on the chip would not be affected. The investigated results showed that a thicker Parylene C membrane and a thicker PDMS microfluidic chip resulted in a longer vacuum holding time. Digital polymerase chain reaction (dPCR) analyses were used to verify that the new method would not influence the biochemical analyses in these microfluidic chips. Furthermore, the evacuation process and Parylene C coating process can be carried out at the same time, and the operation is quite easy. This new method prolongs greatly the storage lives of vacuum-driven PDMS microfluidic chips, and will make them become widely accepted in point-of-care diagnostics.
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高影响因子
ACS Applied Materials & Interfaces
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2025
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IF 8.2
Zhongshuai Gao,Shuya Zhang,Yanyi Duan,Heng Chang,Mei Cui,Renliang Huang,Rongxin Su
Marine biofouling and corrosion have become the main problems affecting the development of the marine industry. Silicone-based coatings have been widely used for antifouling and anticorrosion due to their low surface energy. However, the poor adhesion and low mechanical stability of these materials limit their application in complex marine environments. In this work, we presented a marine antifouling and anticorrosion coating named POSS-DMA@PDMS-TCM through photoinitiated thiol–ene click reaction combined with (mercaptopropyl) methylsiloxane dimethylsiloxane (PDMS-SH), dopamine methacrylamide (DMA), sulfhydryl-functionalized organosiloxanes (POSS-(SH)8), and N-(2,4,6-trichlorophenyl) maleimide (TCM). The POSS-DMA@PDMS-TCM coating exhibited strong stability and bonding ability both in air (2.17 MPa) and underwater (2.11 MPa) when the DMA content was 3 wt %. The high antibacterial (98.1% for Staphylococcus aureus and 99.5% for Escherichia coli) and antidiatom (94.5%) properties of the POSS-DMA@PDMS-TCM coatings have also been confirmed. Moreover, the POSS-DMA@PDMS-TCM coatings show excellent antifouling abilities in 120-day marine field tests, reducing fouling by 65.5% in comparison to the blank group. The coating also displayed superior anticorrosion performance with Ecorr values of −0.055 V, Icorr values of 7.67 × 10–6 , and Rp values of 3.10 × 105 Ω for Cu, which benefited from excellent chelating effect and liquid repellency. This study provides a novel strategy for the development of high-quality marine antifouling and anticorrosion coatings.
研究领域:
材料科学
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海洋工程
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生物医学
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PubMed
高影响因子
OPTICAL MATERIALS
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2024
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IF 3.8
Minghui Xu,Xuechun Yang,Xue Yang,Yuanhao Zhou,Guoxue Pan,Wanli Shang,Qingwen Tan,Zhan Xu,Guangda Niu,Jianjun Dong,Yukun Li,Zhenghua Yang,Feng Wang,He Feng,Jingtai Zhao,Kuan Ren,Qianli Li
Cesium manganese bromide metal halide has great potential in the field of X-ray imaging and anti-counterfeiting due to its excellent optoelectronic properties. Here, Cs 3 MnBr 5 was successfully prepared by a simple method. Uniquely a novel phenomenon based on H 2 O induced color change was discovered, Cs 3 MnBr 5 can recover from aqueous solution more than 10 times under heating, which can be used in fluorescent anti-counterfeiting applications. Furthermore, Cs 3 MnBr 5 @PDMS, prepared by the PDMS composite strategy, has been demonstrated to exhibit a stability that is 20 times greater than that of Cs 3 MnBr 5 . Simultaneously, the light yield of Cs 3 MnBr 5 is evaluated to be 21688 photons/MeV. Furthermore, it has been successfully applied in non-destructive detection and biological imaging and the spatial resolution can be restored to 10 lp mm −1 .
研究领域:
材料科学
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光电技术
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成像技术
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2019
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IF 5.107
Zhihao Si,Di Cai,Shufeng Li,Guozhen Li,Ze Wang,Peiyong Qin
The diffusion process is the rate-limiting step for n -butanol recovery from diluted aqueous solution, which can be improved by incorporating hydrophobic nanoparticle into the polymer matrix. However, the micropore structure of zeolitic imidazolate framework-8 (ZIF-8) in the commonly applied ZIF-8-based mixed matrix membrane (MMM) could hardly meet the diffusion demand of the penetrant molecules. Herein, ZIF-8-derived nanoporous carbon (ZNC) with larger pore diameter and pore volume was prepared to replace ZIF-8 in conventional MMM in order to improve the diffusion process. An increase of 68.7% in n -butanol permeability of ZNC/PDMS MMM with 3 wt% of particle loading was obtained compared with ZIF-8/PDMS MMM. Coupled with the good compatibility between ZNC and PDMS , ZNC was homogeneously dispersed in PDMS matrix. As a result, a n -butanol permeability of 109,583 Barrer and a n -butanol/water selectivity of 4.47 were obtained for n -butanol recovery from 1.5 wt% n -butanol/water solution at 55 °C, which were increased by 145.4% and 17.6%, respectively, compared with the pure PDMS membrane. Overall, the ZNC-filled PDMS membrane shows promising in effective separation of n -butanol in realistic applications.
研究领域:
化学工程
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材料科学
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DOI
高影响因子
Small
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2024
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IF 13
Boyu Li,Xiaohui Liu,Xuanting He,Jiaxiang Liu,Shun Mao,Wenquan Tao,Zhuo Li
Mixed matrix composite membranes (MMCMs) have shown advantages in reducing VOCs and CO 2 emissions. Suitable composite layer, substrate, and good compatibility between the filler and the matrix in the composite layer are critical issues in designing MMCMs. This work develops a high-performance UiO-66-NA@PDMS/MCE for VOCs adsorption and CO 2 permea-selectivity, based on a simple and facile fabrication of composite layer using amidation-reaction approach on the substrate. The composite layer shows a continuous morphological appearance without interface voids. This outstanding compatibility interaction between UiO-66-NH 2 and PDMS is confirmed by molecular simulations. The Si─O functional group and UiO-66-NH 2 in the layer leads to improved VOCs adsorption via active sites, skeleton interaction, electrostatic interaction, and van der Waals force. The layer and ─CONH─ also facilitate CO 2 transport. The MMCMs show strong four VOCs adsorption and high CO 2 permeance of 276.5 GPU with a selectivity of 36.2. The existence of VOCs in UiO-66-NA@PDMS/MCE increases the polarity and fine-tunes the pore size of UiO-66-NH 2 , improving the affinity towards CO 2 and thus promoting the permea-selectivity for CO 2 , which is further verified by GCMC and EMD methods. This work is expected to offer a facile composite layer manufacturing method for MMCMs with high VOC adsorption and CO 2 permea-selectivity.
研究领域:
材料科学
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环境工程
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化学工程
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DOI
PubMed
高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2025
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IF 9
Doudou Dong,Weiliang Xu,Yuanhang Jin,Huan Yu,Rui Yao,Guining Chen,Yanan Guo,Haipeng Zhu,Gongping Liu,Yanshuo Li,Wanqin Jin
Currently, separation of ester/alcohol azeotropes such as methyl methacrylate (MMA)/methanol is a typical energy-intensive process using distillation technology. In principle, pervaporation membrane technology can separate azeotropes with higher energy efficiency, while the membrane performance could not meet the application requirement. We reported a new type of MOF ligand side group regulated UiO-66/PDMS mixed-matrix membranes (MMMs) to selectively separate MMA from the its methanol azeotrope. The incorporation of UiO-66 fillers improved the MMA/methanol performance of PDMS membrane. The results of molecular simulation and characterizations revealed that compared with the pristine UiO-66 and UiO-66-CH 3 , amino groups of UiO-66-NH 2 showed stronger interaction energy and thus higher affinity towards MMA molecule. Therefore, although the pore size of UiO-66-NH 2 is larger than the molecular kinetic diameters of MMA and methanol, the tunable chemical environment and molecular interaction promoted the selective transport of MMA. The optimal UiO-66-NH 2 /PDMS MMM displayed an outstanding separation performance with a total flux of 2.07 kg m −2 h −1 and a separation factor of 5.7 for 18 wt% MMA/methanol azeotrope at 40 °C. The membrane exhibited an excellent long-term performance during continuous separation process of ∼3400 h, and showed potential in scale-up fabrication and separation of other ester/alcohol azeotropes. The proposed MOF ligand side group regulation offers a promising strategy to develop high-performance membranes for azeotropic separation.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Leyang Deng,Yongqiang Lan,Jingru Lv,Jiaxing Chen,Yanhong Zhang,Ping Peng
This study reports the development of ethanol-selective composite membranes for pervaporation (PV) based on polydimethylsiloxane (PDMS) embedded with reduced graphene oxide@silica core-shell (GSCS) particles. To enhance interfacial compatibility and particle dispersion within the matrix, 1H,1H,2H,2H-perfluorodecyltriethoxysilane (FDTS) was immobilized onto the GSCS to entangle with PDMS chains. A pre-polymerization strategy was adopted to increase the viscosity of the casting suspension, facilitating higher filler loading and improved ethanol separation performance. Optimal separation performance was achieved with a casting solution viscosity of 4 Pa s, yielding a maximum selectivity of 3.94. The scanning electron microscope (SEM) confirmed the formation of smooth defect-free PDMS/FDTS-GSCS composite membranes. The PV testing of these membranes demonstrated a high separation factor of 11.03 and a permeation flux of 242 g m −2 h −1 for separating a 10 wt% ethanol/water mixture at 40°C. Critically, the composite membranes exhibited excellent operational stability over a continuous 168-h test period. These findings indicate that incorporating FDTS-modified GSCS into PDMS significantly enhances ethanol selectivity, highlighting the potential of these membranes for bioethanol recovery applications.
研究领域:
材料科学
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膜技术
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化学工程
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分离过程
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纳米复合材料
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DOI
高影响因子
Research
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2025
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IF 10.7
Haoxu Si,Shuai Zhang,Yaqin Ding,Chongyang Chai,Shuaishuai Zhou,Cuiping Li,Jingwei Zhang,Chunhong Gong
According to the relationship between unit size and wavelength, electromagnetic waves (EMWs) in metacomposites can be effectively absorbed through inherent loss mechanisms. However, limited loss ability has emerged as a primary obstacle to achieving efficient EMW absorption (EMWA) performance. The challenge of enhancing the attenuation of corresponding metacomposites remains important. In this study, we prepared elaborate titanium nitride/reduced graphene oxide units with controllable conductivities and sizes, which formed the microwave antireflective surface of metacomposites. This configuration contributes to improved impedance matching and reduced temperature sensitivity concerning EMWA performance. More importantly, EMWs experience repeated collisions and loss, along with multiple reflections and scattering within metacomposites. This phenomenon extends the transmission pathways of EMWs, thereby increasing additional loss capacity. Consequently, these metacomposites exhibited exceptional EMWA performance across a broad temperature range (298 to 573 K), while maintaining a low filler content of 1.0 wt% units. Henceforth, our findings not only provide an advantageous pathway for high design flexibility in EMWA but also pave the way for new research directions and possibilities regarding advanced lightweight metacomposites that optimize EMWA over an extensive temperature range.
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PubMed
高影响因子
ACS Applied Electronic Materials
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2025
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IF 4.7
Xincheng Wang,Yingxin Yuan,Jinhao Xu,Zhen Li,Tianyi Xu,Penglin Lu,Shanshan Guan
Multifunctional flexible sensing technology has emerged as a pivotal research hotspot. However, most existing flexible sensors are constrained by single-functionality limitations and thus fail to meet the increasingly urgent demand for integrated multiparameter sensing in complex real-world scenarios. In this study, we propose a multifunctional flexible sensor based on an rGO@MXene/PDMS nanocomposite, which integrates three functionalities: high gauge factor (GF) strain sensing, precise resistive temperature sensing, and efficient photothermal conversion. These capabilities enable reliable monitoring of physiological signals, health monitoring, and localized thermal therapy. The as-fabricated flexible strain sensor exhibits exceptional performance, exhibiting a low detection limit of 0.5%, high gauge factor (GF) of 1000, broad dynamic range of 0%–400%, and excellent cycling stability over 20,000 cycles. Notably, the sensor achieves a temperature coefficient of resistance (TCR) of −1.01% °C–1, enabling sustained real-time physiological temperature monitoring for up to 1800 min. Furthermore, the sensor exhibits efficient photothermal conversion capability, achieving a rapid temperature rise (ΔT > 40 °C under 1 kW m–2) and stable heat retention, making it highly promising for localized thermal therapy. This work provides great potential to advance the development of next-generation wearable devices, smart healthcare systems, and human–machine interaction technologies.
研究领域:
材料科学
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柔性电子学
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可穿戴传感器
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生物医学工程
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智能医疗
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纳米复合材料
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热疗
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DOI
高影响因子
Advanced Materials Technologies
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2025
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IF 6.2
Zherong Yu,Hailin Wang,Jingjing Luo,Zhongqi Ren,Suzhu Yu,Jun Wei
Lead-free and environmentally friendly ceramic materials have been attracted extensive attention in flexible piezoelectric devices. In this work, a series of Ce 3+ doped Ba 0.85 Ca 0.15 Zr 0.1 Ti 0.9 O 3 (BCZT- x Ce 3+ ) nanowires (NWs), with different molar ratios of Ce 3+ to BCZT ( x ), are synthesized using a two-step hydrothermal reaction method with HZTO NWs as a precursor. Flexible composites are prepared by dispersing BCZT- x Ce 3+ NWs into polydimethylsiloxane (PDMS) matrix. The BCZT-0.001 Ce 3+ NWs/PDMS composite is found to have a piezoelectric coefficient ( d 33 ) as high as 223.2 pC·N −1 , which is 393% higher than that of the pure BCZT NWs/PDMS composite. The BCZT-0.001 Ce 3+ NWs/PDMS composite shows the optimal sensing properties with output open-circuit voltage and short-circuit current of 9.04 V and 53 nA, respectively, which is significantly higher than that of the BCZT NWs/PDMS composite. Moreover, the sensor features a voltage – pressure linearity in the ultra-wide pressure range of 2.22 to 155.56 kPa, with sensitivity of 0.0565 V·kPa −1 , and a good durability over 10 000 cycles. Further demonstration shows that the sensor is suitable for monitoring human motion at low-frequency such as 2 Hz, with an ultra-fast response time of ≈120 ms, making it a promising candidate for applications in the fields of human health monitoring and artificial intelligence.
研究领域:
材料科学
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压电材料
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柔性电子学
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传感器技术
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纳米材料
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DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
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2025
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IF 6.2
Jiachuan Chen,Jiaming Fan,Kefeng Liu,Junchao Li,Qixiu Dong,Guihua Yang
Traditional oil/water separation materials are greatly limited by poor eco-friendly, high energy consumption, and tedious preparation process. To address these issues, a sustainable superhydrophobic paper-based material (PDMS-CP@γ-CD-MOF) was developed through synergistic modification of cellulose paper sourced from wheat straw. A rough structure on the superhydrophobic paper was created by in-situ growth of γ-cyclodextrin metal-organic framework (γ-CD-MOF), and the surface energy was controlled via polydimethylsiloxane (PDMS) coating. The resulting superhydrophobic paper displayed appropriate mechanical strength, excellent superhydrophobicity and self-cleaning ability. Notably, gravity-driven separation of various oil/water mixtures was achieved with efficiencies over 97 % and flux rates reaching up to 382–603 L·m⁻²·h⁻¹ . Moreover, the superhydrophobic paper demonstrated excellent reusability, maintaining a separation efficiency above 98 % after 10 cycles, which indicates promising potential for treating oily industrial wastewater.
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危险品化学品经营许可证（带存储）