CHEMICAL ENGINEERING JOURNAL
·
2024
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IF 13.3
Jiyan Li,Guoyu Xing,Min Qiao,Silu Du,Tao Zhou,Shuo Gao,Hanxue Sun,Rui Jiao,An Li
Solar-driven atmospheric water harvesting (SAWH) has been recognized as a promising strategy to alleviate the freshwater crisis. Herein, we developed an efficient porous polymeric foam, LiCl@CCP-PPy, which has low preparation cost, strong adaptability and portability, and is very suitable for use as a wicking material in SAWH systems. LiCl@CCP-PPy contains abundant –NH 2 and –OH groups. These hydrophilic groups and excellent pore structure (porosity is 80.22 %) make it have a good moisture absorption effect even in low humidity environment. The moisture absorption capacity can reach 2.86 g/g at 35 % RH and 25 °C, and 4.48 g/g at 25 °C and 90 % RH. The saturated water absorption effect was 27.48 g/g. LiCl@CCP-PPy can be scaled up for production. In addition, LiCl@CCP-PPy has a high light absorption rate of more than 90 %, and the strong photothermal conversion ability of Polypyrene (PPy) enables the material to warm up rapidly under natural light, thereby accelerating the desorption process (96 % desorption rate at 1 kW/m 2 for 3 h). Based on the above properties, LiCl@CCP-PPy was applied to the Tengger desert in northwest China. The final water production efficiency was 0.64 L/m 2 /d, and the collected water quality met the international drinking water standard.
研究领域:
材料科学
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环境科学
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产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Bingbing Xu,Feng Ye,Ronghu Chen,Xiaogang Luo,Zhebin Xue,Ruoxin Li,Guangtao Chang
In recent years, wearable multifunctional strain sensors have attracted attention for their promising applications in wearable electronics and portable devices. To achieve a high-performance wearable strain sensor with a wide sensing range and high gauge factor (GF), wisely choosing appropriate conductive materials and a rational structural design is essential. Herein, we develop a supersensitive sensor that contains one-dimensional conductive material CNT and two-dimensional material MXene built on a PDMS porous foam that is made based on a sugar template. The one-dimensional carbon nanotube (CNT) functionalizes as a conductive scale layer through solvent swelling and evaporation on the surface of the PDMS skeleton. The two-dimensional MXene is applied on top of the CNT layer to form final conductive pathways. The PDMS/CNT@MXene (PCM) sensor has a wide sensing range (150%), high sensitivity (GF = 26438), rapid response speed (response/recovery time of 60/71 ms), and exceptional durability (>1000 cycles) owing to its unique porous structure with scale layers and graded fracture of conductive pathways. Moreover, the PCM sensor is capable of monitoring subtle and significant human activities and is used for wireless sensing and medical diagnostics, even for solvent identification. The superior performance of the PCM sensor provides vast application potential in human movement, health monitoring, and warning devices.
研究领域:
材料科学
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生物医学工程
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电子工程
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
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2025
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IF 8.2
Huawang Zhao,Naidan Zhang,Jincheng Zhang,Bekezela Matshazi,Yawen Shi,Minyuan Feng,Weilin Xu,Guangming Cai,Hongjun Yang
Traditional petroleum-based foam dressings offer limitations due to poor biocompatibility, long preparation cycle, and serious environmental pollution. In addition, free small molecules of incomplete polymers and residual toxic cross-linkers pose a threat to the health of patients and hinder the rapid repair of wounds. Recently, natural compounds extracted from plants have gained a lot of interest in the field of wound repair due to their good biocompatibility, biodegradability, and therapeutic effects. In this study, we successfully prepared magnolol-based porous foams by a simple one-pot method using magnolol herbal exhibiting good mechanical properties, hydrophobicity, and biocompatibility, and meets the requirements of wound dressings. The Janus composite dressing was prepared using a magnolol-based porous foam as the inner layer, PVA nonwoven fabric as the middle layer, and polyacrylate as the outer layer. The three-layer structure of magnolol-based porous foam/PVA nonwoven fabric/polyacrylate (MPF/PVA/PAAS) has the capacity to realize unidirectional diversion and rapid water locking of liquid. In vivo experimental data showed that MPF/PVA/PAAS dressing significantly promoted collagen deposition and angiogenesis, and could shorten the wound healing cycle from 14 days to 10 days, significantly accelerating the wound healing process compared to traditional wound dressings. Hence, magnolol-based foam dressings show great application potential in the field of wound treatment.
研究领域:
生物材料学
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药理学
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医学
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产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2021
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IF 9.229
Lihua Chen,Kaihui Xu,Yuhan Zhang,Qimeige Hasi,Xiaofang Luo,Juanjuan Xu,An Li
Highly efficient elimination of petroleum pollution is of great importance for addressing environmental issues and social sustainability. In this study, we demonstrate a novel strategy for efficient elimination of petroleum pollution by selective adsorption of it by an ultralight hydrophobic/lipophilic microorganism-loaded biomass porous foam (BTS-MSFT4@MTMS) followed by a green degradation of adsorbates under mild conditions. The porous structure of biomass porous foam (MSFT) could provide plenty of room for immobilization of Bacillus thuringiensis (BTS), while a simple surface modification of the MSFT load with a BTS strain (BTS-MSFT4) by methyltrimethoxysilane (MTMS) could change its wettability from hydrophilic to lipophilic, which makes selective adsorption of hydophobic petroleum pollution from water for biodegradation possible. As expected, using a petroleum n-hexadecane solution with a concentration of 3% as a model oily wastewater, the as-prepared BTS-MSFT4@MTMS possesses both a superior selective adsorption of ca. 99% and high degradation activity with a high degradation rate of up to 86.65% within 8 days under the conditions of 37 °C, 120 r min–1, and pH = 7, while the degradation rates for the BTS-MSFT4 and the free BTS strain were measured to be only 81.62 and 65.65%, respectively, under the same conditions. In addition, the results obtained from the study on environment tolerance show that the BTS-MSFT4@MTMS exhibits a strong tolerance under different conditions with various pHs, temperatures, and initial concentrations. Compared with the existing methods for removal of petroleum pollution by direct adsorption of petroleum pollution via superoleophilic porous materials or applying free microorganisms for biodegradation only, which suffers the drawbacks of low selectivity or poor efficiency, our method has great advantages of cost-effectiveness, scalable fabrication, and high efficiency without secondary pollution. Moreover, such a two-in-one strategy by integration of both selective adsorption and biodegradation into biodegradable BTS-MSFT4@MTMS may particularly have great potential for practical application in environmental remediation.
研究领域:
环境科学
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微生物学
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材料科学
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产品关联
DOI
PubMed
高影响因子
Polymers
·
2022
·Vol. 14
·期 23
·5159
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IF 4.967
Yiqi Chen,Yujie Duan,Han Zhao,Kelan Liu,Yiqing Liu,Min Wu,Peng Lu
Bio-based porous materials can reduce energy consumption and environmental impact, and they have a possible application as packaging materials. In this study, a bio-based porous foam was prepared by using a Pickering emulsion as a template. Nisin and waterborne polyurethane (WPU) were used for physical modification of 2,2,6,6-tetramethyl piperidine-1-oxyl-oxidized cellulose nanocrystals (TOCNC). The obtained composite particles were applied as stabilizers for acrylated epoxidized soybean oil (AESO) Pickering emulsion. The stability of the emulsion was characterized by determination of the rheological properties and microscopic morphology of the emulsion. The emulsion stabilized by composite particles showed better stability compared to case when TOCNC were used. The porous foam was obtained by heating a composite-particles-stabilized Pickering emulsion at 90 °C for 2 h. SEM (scanning electron microscopy) images showed that the prepared foam had uniformly distributed pores. In addition, the thermal conductivity of the foam was 0.33 W/m·k, which was a significant decrease compared to the 3.92 W/m·k of the TOCNC foam. The introduction of nisin and WPU can reduce the thermal conductivity of the foam, and the physically modified, TOCNC-stabilized Pickering emulsion provides an effective means to preparing bio-based porous materials.Keywords:TOCNC/Nisin/WPU;Pickering emulsion;biomaterials;porous foam;thermal insulation
研究领域:
材料科学
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生物学
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产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2015
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IF 4.321
Jianming Pan,Jun Zeng,Qin Cao,Heping Gao,Yongchao Gen,Yinxian Peng,Xiaohui Dai,Yongsheng Yan
In this work, the hierarchical porous foams (HPFs) were fabricated and applied as the novel adsorbent for simultaneous removal of λ-cyhalothrin (LC) and Cu(II). Macroporous poly(glycidyl methacrylate) foams (MPGMA) with highly interconnected pore network were firstly prepared by high internal phase emulsions (HIPEs) template. Then carboxylated mesoporous silica nanoparticles (CMSNs) were grafted onto the interface of macroporous foams via the reaction between epoxy groups on MPGMA and carboxyl groups on CMSNs . The as-prepared HPFs composites possessed macropores ranging from 10 μm to 40 μm and uniform mesopores on average of 2.5 nm, and their large amount of carboxyl groups resulted in a favorable adsorption for λ-cyhalothrin (LC) and Cu(II). In single adsorption, the maximum adsorption capacity of HPFs for LC and Cu(II) were 80.11 mg g −1 and 21.79 mg g −1 at 288 K, respectively. The adsorption mechanism between LC and HPFs could be the hydrogen bonding and hydrophobic interaction, while the electrostatic attraction maybe the main interaction between Cu(II) and HPFs. Binary adsorption showed that the enhanced adsorption capacity of LC was 104.1 mg g −1 in the presence of 15 mg L −1 Cu(II) at 288 K, and the excellent result of Cu(II) was 22.23 mg g −1 with the mixed solution of 50 mg L −1 LC at 288 K, indicating the existence of promotion in adsorption ability in the case of coexistence of LC and Cu(II). Moreover, HPFs could maintain stability after five adsorption/desorption cycles in the regeneration steps.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2018
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IF 5.123
Xuan Cai,Kaicha Chen,Zhenxing Wang,Wenqian Sun,Hongli Zhao,Huanhuan Zhang,Huilan Chen,Minbo Lan
The detection of superoxide anions (O 2 •− ) is widely considered as a potential way for cancer diagnosis and the development of enzyme-mimic catalysts is the main challenge in the establishment of electrochemical sensors for O 2 •− sensing in real samples. Here we present a novel enzyme- and metal-free electrochemical catalyst for superoxide (O 2 •− ) sensing based on the widely-used carbon nanotubes (CNT). Through a one-step hydrothermal process induced by phytic acid (PA), CNT-based porous foam (PACNTF) was successfully obtained. Characterizations demonstrated the enhanced defect and disorder degree of PACNTF after PA treatment, which leaded to the increased active sites of PACNTF for electron transfer and the adhesion of O 2 •− during the electrochemical process. As a result, the PACNTF presented higher conductivity and larger current response toward O 2 •− sensing when compared with CNT precursor and CNTF without PA treatment. The sensitivity of PACNTF/SPCE was calculated to be 1230 μA cm -2 mM -1 in the linear range of 0–193.6 μM (R 2 = 0.965) and 373 μA cm -2 mM -1 in the linear range of 193.6–1153.6 μM (R 2 = 0.995) with a limit of detection of 0.16 μM (S/N = 3). Further, the PACNTF/SPCE presented fast response toward cell-released O 2 •− stimulated by Zymosan A. The above results indicated that the fabricated sensor holds potential usage in biological samples.
研究领域:
生物医学工程
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分析化学
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产品关联
DOI
PubMed
高影响因子
LANGMUIR
·
2021
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IF 3.882
Jingxian He,Fang Liu,Chaohu Xiao,Hanxue Sun,Jiyan Li,Zhaoqi Zhu,Weidong Liang,An Li
Solar steam generation has been considered as one of the most promising strategies for production of fresh water using renewable solar energy. Herein, we prepared a polymer porous foam (HPSS) by a facile hydrothermal method. The HPSS presents a superhydrophilic wettability, an interpenetrating macroporous structure, and low thermal conductivity, which can well satisfy the criteria as an ideal candidate for photothermal materials. The HPSS/Fe3O4/PPy (polypyrrole) evaporator, of which a Fe3O4/PPy binary optical system served as a light absorption layer and HPSS was used as a porous substrate, was constructed through in situ growth of Fe3O4 particles followed by interfacial polymerization of PPy on the surface of HPSS. HPSS/Fe3O4/PPy shows an excellent light absorption capacity (92%) and photothermal conversion performance, with the solar energy conversion efficiency reaching up to 94.7% under 1 sun irradiation, which is much higher than that of HPSS/PPy (84.8%) composed of a unitary PPy light absorption layer. Interestingly, the presence of Fe3O4 particles could make directional migration in a magnetic field possible, thus facilitating its recovery as a self-floating solar generator in an open water area. Moreover, the HPSS/Fe3O4/PPy evaporator displays outstanding salt resistance properties and stability in various saline solutions, thus having great potential in practical desalination.
研究领域:
材料科学
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环境科学
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产品关联
DOI
PubMed
高影响因子
Biomedical Materials
·
2018
·Vol. 13
·期 2
·025018
·
IF 2.897
Changlu Xu,Yanjie Bai,Shaofeng Yang,Huilin Yang,David A Stout,Phong A Tran,Lei Yang
The fabrication strategies of three-dimensional porous biomaterials have been extensively studied and well established in the past few decades, yet the biocompatibility and versatility of porous architecture preparation is still lacking. Herewith, we present a novel and green 3D porous foam fabrication technique for both soft and hard engineering. By utilizing the gelatinization and retrogradation properties of starches, stabilized porous constructs made of various building blocks, from living cells to ceramic particles, were created for the first time. In soft tissue engineering applications, 3D cultured tissue foam (CTF) with controlled cell release properties was developed, and foams constituting osteoblasts, fibroblasts and vascular endothelial cells all exhibited high mechanical stability and preservation of cell viability or functions. More importantly, the CTF achieved sustained self-release of cells controlled by serum concentration (containing amylase) and the released cells also maintained high viability and functions. In the context of hard tissue engineering applications, ceramic/bioglass (BG) foam scaffolds were developed by a similar starch-assisted foaming strategy where the resultant bone scaffolds of hydroxyapatite (HA)/BG and Si3N4/BG possessed >70% porosity with interconnected macropores (sizes 200 ∼ 400 μm), fine pores (sizes 1 ∼ 10 μm) and superior mechanical properties despite the high porosity. Additionally, in vitro and in vivo evaluations of the biological properties revealed that porous HA/BG foam exhibits the desired biocompatibility and osteogenesis. The in vivo study indicated new bone ingrowth after 1 week and significant increases in new bone volume after 2 weeks. In conclusion, the presented foaming strategy provides opportunities for biofabricating CTF with different cells for different target soft tissues and preparing porous ceramic/BG foams with different material components and high strengths, showing great versatility in soft and hard tissue engineering.
研究领域:
生物材料学
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再生医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Science Bulletin
·
2023
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IF 18.9
Liping Ren,Wei Zhou,Lei Wang,Kuo Lin,Yachao Xu,Jiaxing Wu,Ying Xie,Honggang Fu
Solar-driven interfacial evaporation is a highly efficient and ecofriendly technology for producing freshwater. Herein, self-floating plasmon Ag/black TiO 2 /carbon porous layered foams (Ag-BTCFs) were demonstrated as efficient solar-thermal convectors using freeze-drying cast-molding and high-temperature surface hydrogenation strategies. This all-in-one three-dimensional (3D) cross-linked self-floating porous layered foam material with full-spectrum absorption can fully harvest sunlight (∼95.45%) and effectively block heat transfer to its sublayer. The synergy of sufficient utilization of absorbed ultraviolet radiation by black TiO 2 (b-TiO 2 ), visible light absorption by Ag nanoparticles (Ag NPs) via localized surface plasmon resonance, and near-infrared absorption by layered-amorphous carbon can achieve full-solar-spectrum absorption to concentrate thermal energy. In addition to their synergistic effect, they are conducive to the relaxation of hot electrons when utilizing photogenerated holes to degrade pollutants in domestic wastewater. The steam generation efficiency of Ag-BTCFs is up to 1.79 kg m − 2 h − 1 due to their solar energy conversion efficiency of 81.74% under 1 sun irradiation, which is five times higher than the evaporation rate of pure water. Notably, the material’s efficient ion removal rate of 99.80% for solar desalination indicates its high potential for various applications. This strategy provides new insights for fabricating recyclable heat-blocking layer systems against thermal loss to enhance solar steam generation.
研究领域:
材料科学
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环境科学
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能源科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Naila Arshad,Muhammad Sultan Irshad,Muneerah Alomar,Junyang Tao,Xianbao Wang,Guo Zhenzhen,M. A. K. Shah,M. Sohail Asghar,Uzma Ghazanfar,Ho Xuan Nang,Zhengbiao Ouyang,Naveed Mushtaq,Van-Duong Dao,Jinming Guo,Hao Wang
Interfacial solar-driven evaporation systems are eco-friendly and promising approaches to produce freshwater and energy. However, the salt accumulation, intricate fabrication process, low evaporation rates, and condensate yields due to environmental stress limit its further practical applications. Herein, an ingenious polyelectrolyte strategy is proposed to effectively control salt accumulation and achieve higher condensate yields through remote and lightweight condensing structures. By sequentially adhering LiNi 0.8 Co 0.15 Al 0.05 O 2-δ (NCAL) and selectively modifying polystyrene sodium sulfonate (PSS) on a black polyvinyl alcohol sponge, a three-dimensional (3D) porous foam structure is conveniently constructed (NCAL@PBS), which features a Donnan exclusion with efficient photothermal conversion and salt-resistance with balanced water supply. The efficient evaporation rate of optimized NCAL@PBS exhibits 2.80 kg m −2 h −1 under one solar irradiation due to non-radiative relaxation behavior achieved via oxygen vacancy defects (13%) in the NCAL structure, and low evaporation enthalpy (1621 J g −1 ), guaranteeing stable and efficient evaporation in complicated environments. The NCAL demonstrates nearly 100% antibacterial efficiency against S. aureus under one sun solar irradiation, attributed to photothermal-induced hyperthermia that damages bacterial cell walls. This work introduces a novel strategy for promoting the water production rate, intelligence, and industrial application of solar-driven interfacial evaporators.
研究领域:
环境科学
·
材料科学
·
能源工程
✓ 已验证
DOI
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2019
·
IF 6.019
Jingxian He,Guohu Zhao,Peng Mu,Huijuan Wei,Yanning Su,Hanxue Sun,Zhaoqi Zhu,Weidong Liang,An Li
Cost-effective and scalable solution to fabricate high-performance photothermal materials is the key to enable widespread application for solar steam generation. Herein, we report the facile and scalable fabrication of monolithic porous foam based on cross-linked aromatic polymer (PDVB-PS) using styrene as monomer and divinylbenzene as cross-linking agent through a facile one-step hydrothermal method . The resulting PDVB-PS foam possesses well-controlled porous structure , open channel structure, low apparent density and low thermal conductivity (0.038Wm −1 k −1 ). After modification with sodium alginate and polypyrrole , the as-modified PDVB-PS (named as PPy-coated M-PDVB-PS) shows a superhydrophilic wettability (water contact angle ∼ 0°) and stronger light absorption ( ca . 90%), which could dramatically enhance its water transportation ability and photothermal property. Taking advantages of these unique physicochemical properties mentioned above, a high solar-vapor conversion efficiency of 87.6% for the PPy-coated M-PDVB-PS was obtained under 1-sun irradiation, showing great potentials for real applications. More importantly, as a kind of representative synthetic polymers , the success in employment of the PPy-coated M-PDVB-PS as efficient photothermal materials shown in this study may also open a new opportunity for rational design and fabrication of polymer-based solar generators derived from commercial available low-cost raw chemicals with simple and scalable manufacture process for practical solar steam generation on large scale.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）