Surfaces and Interfaces
·
2025
·
IF 6.3
Pan Wang,Yang Xiang,Haipeng Yan,Lingsha Li,Zixin Zhao,Liang Xiang,Haoqian Guo,Ying Li,Kui Li,Zhongxiang Bai,Xulin Yang
Solar-driven interfacial steam generation (SDIE) system has emerged as an innovative technology for fresh water production, especially in desalination. Therefore, efficient, reusable, and environmentally sustainable SDIE evaporators are being developed. In this study, a novel multi-layer interfacial evaporator was constructed by combining a polyaniline-modified (PANI-modified) membrane, a loofah sponge, and foam. In this system, the PANI-modified membrane, acting as a photothermal layer, was synthesized via in-situ polymerization on an electrospun nanofiber composite membrane composed of carbonized loofah (CL) powder and polyacrylonitrile (PAN), achieving higher efficiency for fresh water production. In addition, the loofah sponge served as a connecting layer due to its net-like structure, anchoring the upper photothermal layer to the lower foam supporting layer, thereby insulating them from each other. Finally, the support foam layer was formed in-situ with Polyamide 6 (PA6) doped with bamboo charcoal (BC) at the bottom of the connecting layer. The as obtained PA6-BC supporting layer provided functions such as structural support, heat insulation, and contaminant adsorption. This system achieved a deionized water evaporation rate of 1.799 kg m −2 h −1 under 1 sun illumination, and 1.675 kg m −2 h −1 in 3.5 wt.% NaCl solution. Moreover, the system exhibited a high adsorption rate of methylene blue (MB) dye pollutant. The multi-layer interface evaporator also demonstrated excellent salt resistance and stability. These features showcase the novelty of the designed multi-layer interface evaporator and demonstrate the feasibility of applying a multi-layer interface evaporator in photothermal evaporation water treatment.
研究领域:
能源技术
·
材料科学
·
环境工程
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产品关联
DOI
高影响因子
Nano Energy
·
2025
·
IF 17.1
Jiangxin Wang,Yuancheng Zhong,Xu Zhang,Xianfeng Xu,Minmin Liu,Kuanhong Mei,Kaixin Zhang,Weiguo Xu,Shuo Li
The efficient integration of photovoltaic conversion and energy storage technologies is critical to overcoming constraints in solar energy utilization. Solar rechargeable flow batteries (SRFBs) integrate solar energy conversion and storage via photoelectrode-driven redox processes, enabling economically viable pathways for sustainable solar energy storage. However, SRFB development faces limitations of thermodynamic voltage ceilings imposed by photoelectrode/redox couple energy level mismatches and the long-term durability of photoelectrodes. In this study, a PANI/BiVO 4 (PBVO) photoelectrode was fabricated, effectively preventing direct contact between BiVO 4 (BVO) and the electrolyte, thereby suppressing the photocorrosion issues. Meanwhile, [Fe(CN) 6 ] 3- /[Fe(CN) 6 ] 4- and Br - /Br 3- (Fe-Br) redox pairs with high redox reversibility were used in the SRFB system. The designed PBVO Fe-Br SRFB achieved ultra-long stability and a sustained photocurrent for up to 50 h. Furthermore, the effectiveness of the charge transfer pathway in the PBVO electrode within the Fe-Br SRFB was verified, providing insights into the design of SRFBs.
研究领域:
可再生能源
·
电化学
·
材料科学
·
太阳能存储
·
光电化学
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产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2011
·
IF 3.673
Song Zhao,Zhi Wang,Xin Wei,Xinxia Tian,Jixiao Wang,Shangbao Yang,Shichang Wang
Polysulfone (PSf) ultrafiltration (UF) membranes were prepared by non-solvent induced phase separation process using two kinds of additives, i.e., polyvinylpyrrolidone (PVP) as a representation of water soluble polymers and polyaniline (PANI) nanofibers as a representation of nanomaterials. The effects of PVP and PANI nanofibers on membrane formation mechanism, structure and performance were systematically investigated, compared and analyzed. The thermodynamic and rheologic properties of the casting solutions were studied through cloud point titration measurement and viscosity measurement. Variations of the casting film during preevaporation and after immersed into the coagulation bath were observed through mass variation measurement, optical microscopy measurement and light transmission measurement. Membrane structure was characterized by X-ray photoelectron spectroscopy, scanning electron microscope and contact angle measurement. Membrane performance was evaluated by pure water flux, protein rejection, antifouling property, additive stability and mechanical property. The results demonstrated that at the same additive content, PSf/PANI nanocomposite membranes had higher protein rejections, higher antifouling property, better additive stability and larger breaking strength than PSf/PVP membranes. The correlations among membrane formation mechanism, structure and performance were also discussed in detail.
研究领域:
材料科学
·
膜技术
·
高分子科学
·
分离过程
·
纳米材料
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DOI
高影响因子
JOURNAL OF PHYSICAL CHEMISTRY A
·
2020
·
IF 2.6
Lincheng Li,Yunlan Xu,Dengjie Zhong
Herein, we reported a simple solvothermal and chemical oxidation method to synthesize a magnetic core–shell composite (Fe3O4@UiO-66@PANI) for Cr(VI) removal from wastewater. Due to the porosity and stability of UiO-66 and stability, high acid resistance, and multiple active (reducing and chelating) groups of polyaniline (PANI), Fe3O4@UiO-66@PANI exhibited excellent efficiency, regeneration, and reusability performance for Cr(VI) removal. Its maximum adsorption capacity and removal rate were 474.42 mg·g–1 and 99.90%, respectively. The effects of initial pH values, contact time, and initial Cr(VI) concentration on Cr(VI) removal were investigated. The fitted data showed that the adsorption process was consistent with the pseudo-second-order kinetic model and Langmuir isothermal model. The study of the mechanism shows that the excellent efficiency of Fe3O4@UiO-66@PANI is due to the electrostatic adsorption and reduction of Cr(VI) and the chelation of Cr3+. The results demonstrate that Fe3O4@UiO-66@PANI is a promising adsorbent for the Cr(VI) removal.
研究领域:
环境科学
·
材料化学
·
水处理
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纳米复合材料
·
污染物去除
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DOI
高影响因子
MACROMOLECULAR MATERIALS AND ENGINEERING
·
2020
·Vol. 306
·期 2
·2000581
·
IF 3.853
Yingying Feng,Yexiang Cui,Mingjun Zhang,Meiling Li,Haiyan Li
Tung oil is used as a catalyst-free repair agent. Tung oil-loaded polyurethane (PU) microcapsules are prepared by interfacial polymerization in a SiO 2 -stabilized Pickering emulsion system, polyaniline (PANI) is deposited in situ on the PU microcapsule surface, and tung oil-loaded PU/PANI double-layer shell microcapsules are obtained. Synthesized PU/PANI microcapsules showed the characteristic dark-green color of conductive PANI. The average particle size is 31.1 ± 8.1 µm and the core content is 45.1 ± 4.3 wt%. The microcapsules have a good thermal stability, and the chemical structure of the PU/PANI wall and tung oil core is confirmed by Fourier transform infrared analysis. Self-healing anti-corrosion coatings are prepared by adding 10 wt% microcapsules into epoxy resin. The corrosion resistance properties of the self-healing coating are evaluated by immersing scratched coatings in 10 wt% NaCl solution for 15 days. The self-healing coating with 10 wt% tung oil-loaded PU/PANI microcapsules have the best anti-corrosion property, and slight corrosion do not occur until 15 days after immersion in salt solution. The self-healing and anti-corrosion mechanism are revealed. The tung oil core and the PANI wall of microcapsules contributed synergistically to the excellent self-healing and anti-corrosion properties of the coating through the formation of self-healing films and passivation layers.
研究领域:
材料科学
·
化学工程
·
腐蚀科学
·
表面工程
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DOI
高影响因子
NANOTECHNOLOGY
·
2019
·Vol. 30
·期 25
·255502
·
IF 3.399
Chonghui Zhu,Umut Cakmak,Ommeaymen Sheikhnejad,Xiaoli Cheng,Xianfa Zhang,Yingming Xu,Shan Gao,Hui Zhao,Lihua Huo,Zoltán Major
Novel sea cucumber-shaped polyaniline/ferric oxide (PANI/Fe2O3) nanocomposites were synthesized using a simple and efficient one step hydrothermal process, and the nanocomposites were further assembled onto a polyethylene terephthalate (PET) flexible substrate. Through the monitoring of the resistance of the PANI/Fe2O3 nanocomposites thick films and PANI/Fe2O3-PET flexible sensors, the responses of the sensors to various 100 ppm gases including methanol, triethylamine, aniline and another five gases were obtained. It was found that two kinds of sensors exhibit a high selectivity towards NH3. The PANI/Fe2O3 nanocomposites-based sensor has a good response and a low detection limit (0.3 ppm) at room temperature (20 ± 5 °C). It also shows a good linearity relationship in a certain concentration of NH3. After assembling into the PANI/Fe2O3-PET flexible film sensor, the response of the sensor is significantly increased to 6.12 for 100 ppm NH3, the detection limit is as low as 0.5 ppm, and the sensor shows good stability and linearity, which is more conducive to the application of such a material in wearable gas sensors.
研究领域:
材料科学
·
化学传感器
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DOI
PubMed
高影响因子
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
·
2020
·
IF 3.085
Jiaoming Wang,Xiang Yu,Xionghui Fu,Yi Zhu,Yuanming Zhang
To solve severe photocorrosion of Ag 3 PO 4 , polyaniline for transporting holes and reduced graphene oxide (rGO) for transferring electrons were co-incorporated with Ag 3 PO 4 by an in-situ precipitation procedure and a following hydrothermal method , reaching the superior carrier separation efficiency via synergetic effect of PANI and rGO. Consequently, 5% rGO/Ag 3 PO 4 /PANI exhibited the excellent photocatalytic performance of 86.2% removal rate towards ciprofloxacin (CIP) within 15 min, which was much better than Ag 3 PO 4 , Ag 3 PO 4 /PANI and many reported photocatalysts . After four consecutive cycles, the composites performed better stability with 81.0% removal rate. Generally, photocatalytic activity depended on efficiencies of light absorption ( η abs ), charge separation ( η sep ) and charge injection ( η inj ). η sep of rGO/Ag 3 PO 4 /PANI was 11.5 and 8.70 folds higher than that of Ag 3 PO 4 and Ag 3 PO 4 /PANI, while η abs and η inj of rGO/Ag 3 PO 4 /PANI were not improved compared with Ag 3 PO 4 and Ag 3 PO 4 /PANI, strongly manifesting synergetic effect of PANI and rGO on Ag 3 PO 4 accelerated the charge separation and finally enhanced the photocatalytic activity . Besides, rGO greatly improved the adsorption efficiency for CIP and the maximum adsorption capacity was enhanced to be 19.4 mg/g which was 6.88 folds than that of Ag 3 PO 4 , being advantageous to enhancing the photocatalytic activity. The work offered an excellent reference for designing and constructing photocatalysts with superior charge separation showing excellent photocatalytic performance, which were potential candidates for degrading antibiotics in environmental treatment.
研究领域:
材料科学
·
环境化学
·
光催化
·
纳米材料
·
环境污染治理
·
半导体催化
·
抗生素降解
✓ 已验证
DOI
高影响因子
Polymers
·
2023
·Vol. 15
·期 2
·459
·
IF 5
Yunlong Le,Yunshan Guan,Xiaoying Ma,Weidong Zhang
Boron removal from aqueous solutions has attracted increasing attention, offering benefits for animal and plant health as well as profound significance for exploiting Salt Lake boron resources. In this work, we synthesized novel glycidol-functionalized and hydrophilic polyaniline (PANI) nanorod adsorbents, which were prepared to separate boron compounds from boric acid aqueous solutions. The as-prepared adsorbents were significantly different from the traditional polymers’ grafting reaction because they had a higher functional yield and more active position for adsorption. The maximum adsorption capacity (0.2210 mmoL∙g−1) and optimal adsorption conditions (boric acid concentration of 1307 mg/L, pH = 9.82, time of 10 h) were obtained with single-factor experimentation and the response surface method (RSM). In addition, adsorption kinetics studies showed that the adsorption reaction belonged to the pseudo-first-order kinetic model, and diffusion was the key limiting factor; therefore, the adsorption equilibrium time is more than 10 h. Finally, the related possible adsorption mechanism was investigated based on the species and the diffusion of boron in the aqueous phase.Keywords:boron adsorption;adsorbents;polyaniline nanorods;glycidol
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产品关联
DOI
PubMed
高影响因子
CRYSTENGCOMM
·
2023
·Vol. 25
·期 35
·5021-5028
·
IF 3.1
Liwen Hu,Dan Xiang,Yi Gan,LiangYing Wen,Xuewei Lv,Meilong Hu,Yuntao Xin,Zhuoran Hou
It is indeed critical to develop efficient and low-cost catalysts for water splitting to meet the growing energy demand. The resultant N-NiS bifunctional water electrolysis catalyst was in situ produced on nickel foam by a straightforward hydrothermal encapsulation sulphuration process, and it demonstrated good electrocatalytic activity. A polyaniline (PANI) coating was used as a nitrogen donor. The use of thermally degraded PANI as a nitrogen source to dope nickel sulfide is a productive and environmentally responsible substitute for the use of conventional hazardous NH3. The resulting change in the electronic structure of NiS due to nitrogen doping has improved its electrocatalytic performance, as evidenced by the alkaline electrolyzer made up of two pieces of the N-NiS electrode having a low cell voltage of just 1.57 V at 10 mA cm−2. This is noteworthy as it surpasses the performance of Pt/C and RuO2 electrode pairs currently available on the market. DFT calculations are conducted to understand the mechanism underlying the improved electrocatalytic performance and support the idea that the doping of N atoms changes the electronic structure of NiS and leads to the increase of vacancies around the Ni site, thereby facilitating the adsorption of intermediate products.
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产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2023
·Vol. 34
·期 17
·1-20
·
IF 2.8
Qi Zhijia,Zhang Shengsheng,Huang Jiaju,Li Juan,Jiang Junjiong,Fan Ping,Yang Jintao
Flexible PVDF-based piezoelectric nanogenerators (PENGs) are promising mechanical energy harvesters for powering wearable devices and portable electronics. In this work, a new hybrid nanocomposite was prepared by coating polyaniline on the surface of halloysite nanotube (HNT@PANI) and PENGs were fabricated by using electrospun nanocomposite fiber mats comprising HNT@PANI and poly(vinylidene fluoride) (PVDF). The rough surface of PANI outer layer and its electronegative properties favors a large interface and a strong interfacial interaction with PVDF matrix, which efficiently improves the β-phase crystal content and the crystallinity of PVDF simultaneously, resulting in an enhanced output performance in the fibrous nanocomposite PENGs. When the nanocomposite fiber mats are composed of 1 wt% HNT@PANI nanoparticles, the open-circuit voltage of the PENG is up to 30 V, which is six times higher than that of pure PVDF, and it can also light up 17 red LEDs. Furthermore, the open-circuit voltage was found unchanged after being subjected to continuous tapping for 5 weeks in the durability test. In addition, the PENG can charge a capacitor to 4.4 V within 60 s. This flexible self-powered PENG with good durability and high outputs has the potential to be used as a self-charging power source and applied in the field of wearable flexible electronic devices.
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产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Gangrong Chen,Yongtao Yuan,Ming Lang,Zeping Lv,Weilin Ma,Naiting Gu,Hong Liu,Jingzhong Fang,Haibin Zhang,Yuntao Cheng
Herein, we report a facile and straightforward synthetic strategy for preparing flexible NH 3 sensors with high performance and application prospects. Interestingly, core–shell Au@SiO 2 nanocrystals (NCs) doped polyaniline (PANI) were innovatively employed as the sensitive material and the NH 3 sensors were constructed via a simple droplet-evaporation self-assembly process on the polyimide substrates. Experimental results show that the well-designed NH 3 sensor with ∼ 20 wt% of Au@SiO 2 NCs doping PANI exhibited high sensitivity, flexibility and combined reproducibility at room temperature: the device’s detection limit of NH 3 reached a 10 ppb level; the device’s concentration deviation induced by large-angle and cycled bending could be kept within 0.6 ppm, and the maximum response variation was less than 2.7% through 30 days of monitoring; Additionally, the designed NH 3 sensor does have insusceptibility to the ambient relative humidity (from 48% to 66%). Indeed the sensing mechanism of our NH 3 sensor was discussed from the Au@SiO 2 NCs doped PANI structure, the crucial role of abundant hydroxyl (–OH) functional groups, and the catalytic activity of Au NPs. Overall, this study demonstrates an alternative and effective pathway to fabricate high-performance and applicable NH 3 sensors, which may be conducive to further application for environmental NH 3 detection and human kidney disease diagnosis.
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产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2021
·Vol. 9
·期 36
·20635-20644
·
IF 12.732
Jinyong Tian,Nanjian Cui,Peining Chen,Kunkun Guo,Xuli Chen
At present, the energy storage performances of fiber supercapacitors are significantly limited by the insufficient charge transfer and defective loading of active materials. Here, to modify the rate capability and cycling stability of flexible fiber supercapacitors, a composite fiber with a hierarchical core-sheath structure is designed by first growing N-CNTs on a highly aligned CNT fiber and then depositing PANI on the N-CNTs. The primary core, highly aligned CNT fiber, ensures free-standing flexibility and the rapid transfer of electrons. The porous primary sheath and secondary core, N-CNTs, can form a framework so as to improve the loading mass and uniformity of the secondary sheath, PANI with high specific capacitance, and enhance the interaction between PANI and the N-CNTs. Moreover, the porous N-CNT structure can simultaneously greatly facilitate the transfer of electrons and ions. The synergistic effects of the CNT fiber, N-CNTs and PANI endow this hierarchical core-sheath structured PANI/N-CNT@CNT fiber with high specific capacitance, excellent rate capability and cycling stability. The specific capacitance reaches 323.8 F g−1 at a current density of 1 A g−1 and 221.3 F g−1 can be retained at a high current density of 50 A g−1. The assembled supercapacitor can maintain 92.1% of the original capacitance after 10 000 charge–discharge cycles at 20 A g−1. Beyond excellent energy storage properties, it also exhibits excellent wearability and flexibility. The capacitance can be maintained at 95.5% after repeated bending processes for up to 10 000 cycles. This work provides a new strategy to develop fiber electrodes for high-performance wearable devices.
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）