Journal of Water Process Engineering
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2026
·
IF 6.6
Xiaoyan He,Yanling Liang,Xiaosu Cheng,Hui Fan,Zhentong Zhu,Yuxuan Zhang,Yihao Guo,Jing Li,Yuanyuan Lu,Zhiqiang Wang,Xiaoquan Lu
PPy/SrTiO 3 -Bi composites let biomass hydrogel evaporators combine photothermal conversion with photocatalytic degradation. • Adsorption interception coupled with photocatalytic degradation gives the evaporator excellent VOC removal efficiency. • The evaporator achieves a VOC removal efficiency of up to 99.3% under one-sun irradiation. • Under the same illumination condition, a high-water evaporation rate of 3.13 kg m −2 h −1 is also obtained. • This evaporator exhibits excellent salt resistance and water purification capabilities. Solar-driven interfacial evaporation technology has become an important approach to addressing the global water crisis due to its advantages such as being green and sustainable. However, due to the inherent volatility of volatile organic compounds (VOCs), the technology still faces severe challenges in removing VOCs from distilled water. In this paper, a biomass-based hydrogel evaporator (PSBH) integrating solar steam generation and photocatalytic degradation was constructed by immobilizing polypyrrole (PPy)-coated SrTiO 3 -Bi composites into an acrylamide (AM)/Kapok fibres composite hydrogel network via a one-pot method. This evaporator can effectively remove phenol (a typical VOC) that is volatilized along with water vapor, while achieving efficient solar-powered water evaporation. The introduction of kapok fibres endows AM hydrogels with superior structural stability and water transport efficiency, while reducing the energy required for the evaporation process, thereby enhancing the overall water transport and evaporation performance. PPy-coated SrTiO 3 -Bi composites achieve photothermal-photocatalytic synergy. The introduction of semimetal Bi nanoparticles enhances visible-light absorption and promotes spatial charge separation through its dual functional role as an electron trap and a plasmonic hot-electron donor, imparting excellent photocatalytic activity and photothermal conversion efficiency. Under 1 sun illumination, the interfacial evaporation rate can reach 3.13 kg m −2 h −1 . Meanwhile, the removal efficiency of a typical VOC (phenol) reaches 99.3%, enabling the simultaneous achievement of highly efficient seawater desalination and VOC removal. It is worth noting that the evaporation rate of this evaporator can still reach 2.22 kg m −2 h −1 in 20 wt% salt solution concentration, showing excellent environmental tolerance. This design offers a feasible strategy for multifunctional photothermal materials and a novel solution to VOCs pollution in solar interfacial evaporation. Download: Download high-res image (209KB) Download: Download full-size image
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高影响因子
DYES AND PIGMENTS
·
2025
·
IF 4.2
Yinchun Fang,Xianglu Zhao,Xuchen Tao
High refractive index metal oxides can produce structural colors through Mie scattering, which have been studied for use in eco-friendly textiles coloring. However, the inherently low structural order of Mie scattering structural colors hinders the formation of brilliant color on white substrates, limiting the application fields. In this research, Cu 2 O@PPy core-shell microspheres with varying particle sizes (382, 414, 452, 500 and 563 nm) were synthesized, which were used to construct the structural color coatings with blue, green, yellowish green, yellow and bright yellow on poly(acrylate) (PA) adhesive-pretreated white polyester fabric via spray-coating. Cu 2 O@PPy microsphere structural color coating on the fabrics obtained superhydrophobicity with the water contact angles (WCA) greater than 150° by spraying polydimethylsiloxane (PDMS), thus endowing them with self-cleaning function. The PDMS treatment would not have a significant impact on the color of structural color coating on fabrics. The introduction of PA adhesive imparted excellent fastness to the structural color coating on fabrics with only minimal impact on physical properties. This research presents a novel method for fabricating functional structural color coatings on white fabrics using black polymer-coated core-shell microspheres.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2012
·Vol. 378
·期 1
·30-35
·
IF 3.07
Shangkun Li,Xiaofeng Lu,Xiang Li,Yanpeng Xue,Chengcheng Zhang,Junyu Lei,Ce Wang
A reactive-template vapor phase polymerization method for the preparation of bamboo-like polypyrrole (PPy) nanotubes has been successfully demonstrated in this paper. Herein, electrospun V 2 O 5 nanofibers were chosen as templates to deposit PPy, which served as the oxidants as well. This method can provide the fabrication of PPy nanostructures more easily than conventional routes due to its independence of removing template, which is usually a complex and tedious experimental process. The application of bamboo-like PPy nanotubes for Cr(VI) ions removal in aqueous solution has been explored. The resulting bamboo-like PPy nanotubes exhibited much higher adsorption performance than traditional PPy nanoparticles.
研究领域:
环境科学
·
纳米材料
·
高分子化学
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环境污染治理
·
吸附技术
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高影响因子
Journal of Nanomaterials
·
2018
·
IF 2.207
Shuo Yang,Xuan Li,Pei Yao
A new type of nanopolypyrrole/organically modified montmorillonite-ionic liquid gel polymer electrolyte (ppy/OMMT-ILGPE) is prepared based on nanopolypyrrole/organically modified montmorillonite (ppy/OMMT), N-butyl-N- methylpyrrolidinium bis(trifluoromethanesulfonyl)imide (PP14TFSI), lithium-bis(trifluoromethanesulfonyl) (LiTFSI), polyvinylidene difluoride (PVDF), methyl methacrylate (MMA), and benzoyl peroxide (BPO) by an in situ method. The effect of nano-ppy/OMMT on the physical and electrochemical properties of an ionic liquid gel polymer electrolyte is demonstrated. The results show that nano-ppy/OMMT-ILGPE has a porous structure with a large surface area, and the diameter of the pores on the surface is approximately 1-2 μm. The Li+ transference number of 0.72 is achieved, and the ionic conductivity reaches up to 1.2 × 10−3 S/cm at room temperature. Nano-ppy/OMMT-ILGPE has good thermal stability and mechanical properties. Meanwhile, nano-ppy/OMMT-ILGPE has fine cycle performance in the Linano-ppy/OMMT-ILGPELiNi1/3Co1/3Mn1/3O2 coin cell. The good electrochemistry performance of nano-ppy/OMMT-ILGPE means that it can act as an ideal gel polymer electrolyte material for lithium ion batteries.
研究领域:
材料科学
·
电化学
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高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2020
·
IF 6.444
Lixue Gai,Yumeng Zhao,Guilin Song,Qingda An,Zuoyi Xiao,Shangru Zhai,Zhongcheng Li
Herein, a novel core-shell PPy@MoS 2 nanotube-like heterostructures were prepared with hollow polypyrrole nanotubes and intertwined MoS 2 nanosheets as core and the outer shell, respectively, by combining chemical oxidative polymerization and hydrothermal process. The unique heterostructures endowed the designed composite with highly enhanced electromagnetic wave absorbing performance. In contrast to pristine hollow PPy nanotubes and MoS 2 nanoflowers, the fabricated PPy@MoS 2 composite not only possessed excellent reflection loss (RL) performance, but also displayed a broad absorbing bandwidth, which might be ascribed to the good impedance matching and multifarious loss pathways including dipole polarization, interfacial polarizations and conductive loss. Impressively, the widest bandwidth (RL < −10 dB) of PPy@MoS 2 could be gained up to 6.4 GHz at 2.5 mm, and the optimal RL is −49.1 dB at 6.1 GHz. In combination of controllable preparation process and highly enhanced performance, this newly PPy@MoS 2 might be a promising candidate in remediation of electromagnetic wave pollution.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2021
·
IF 4.539
Jinming Ma,Huizhen Deng,Zhe Zhang,Lexin Zhang,Zhihui Qin,Yaru Zhang,Lili Gao,Tifeng Jiao
In this study, a series of Ag 3 PO 4 /PPy/PANI ternary composite catalysts were fabricated by adjusting the mixed solution of pyrrole and aniline with different volume ratios of 4:1, 3:2, 1:1, 2:3, and 1:4, and combining with the in-situ synthesis method. The synthesized Ag 3 PO 4 /PPy/PANI nanoparticles were examined by XRD , SEM, TEM and EDX , Raman spectroscopy . When the ratio of pyrrole and aniline is 1:1, the polymerized PPy/PANI acted as the supporting matrix to effectively immobilize and prevent the aggregation of Ag 3 PO 4 nanoparticles. The catalytic performances of the Ag 3 PO 4 /PPy/PANI composites were confirmed for reduction of 2-nitroaniline (2-NA) and 4-nitrophenol (4-NP) in the presence of NaBH 4 at room temperature by UV–vis spectroscopy. Results showed that the catalytic reduction effect of the Ag 3 PO 4 /PPy/PANI (1:1) on 2-NA is obviously better than that on 4-NP, which followed the pseudo-first-order kinetic, and the corresponding rate constants are 0.0053 min −1 and 0.022 min −1 , respectively, indicating that it has potential application in wastewater treatment in industries.
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高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
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2017
·
IF 4.075
Qiongzhen Liu,Bo Wang,Jiahui Chen,Fei Li,Ke Liu,Yuedan Wang,Mufang Li,Zhentan Lu,Wenwen Wang,Dong Wang
In present work, polypyrrole (PPy) has been in-situ polymerized on a poly(vinyl alcohol- co -ethylene) (PVA- co -PE) nanofirous textile to form a 3D interconnecting PPy nanowires/nanofibrous textile composite electrode (designated as NW-PPy/NFs/PET). It demonstrates that the introduction of anthraquinone-2-sulfonic acid sodium (AQS) can tune the morphology of PPy from nanospheres to nanowires. The resulting PPy@PVA- co -PE conformal nanofibers act as bridges among intertwined PPy@PET fibers and PPy nanowires, leading to continuous pathways for ion/electron transfer and larger surface area for faradic reaction. Benefiting from this unique structure, the two-electrode supercapacitor using NaCl solution as electrolyte delivers a high power density of 800 W kg −1 at an energy density of 20 W h kg −1 per mass of active materials. Furthermore, the symmetric all-solid-state NW-PPy/NFs/PET supercapacitor demonstrates high flexibility and cycle stability. Therefore, this work may open a new way to develop light weight and cost-effective electrodes for flexible energy storage devices.
研究领域:
材料科学
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电化学
·
纳米技术
·
能源存储
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RSC Advances
·
2016
·Vol. 6
·期 37
·31107-31113
·
IF 3.289
Yanzhou Jiang,Guangdi Nie,Maoqiang Chi,Zezhou Yang,Zhen Zhang,Ce Wang,Xiaofeng Lu
In this work, we demonstrate the fabrication of polypyrrole (PPy) decorated TiO2/Fe2O3 (TiO2/Fe2O3/PPy) composite nanofibers with a core–shell structure as an artificial enzyme system with a high peroxidase-like activity. The TiO2/Fe2O3 nanofibers with a diameter in the range of 40–150 nm and a relatively narrow distribution of diameter size are prepared via an electrospinning technique and followed by a calcination process. Then we are able to in situ polymerize a layer of PPy on the surface of the TiO2/Fe2O3 nanofibers by using Fe2O3 on the surface of nanofibers as an oxidant. The resulting ternary TiO2/Fe2O3/PPy composite nanofibers exhibit an enhanced peroxidase-like activity toward the oxidation of 3,3′,5,5′-tetramethylbenzidine (TMB) in the presence of H2O2 over independent TiO2, Fe2O3 and TiO2/Fe2O3 composite nanofibers due to the synergistic effect. On the basis of the high peroxidase-like activity, a simple approach for the colorimetric detection of H2O2 with a detection limit of 2.4 μM and a linear detection range from 2 to 50 μM has been proposed. This work offers a new way for manipulating the enzyme-like performance of electrospun nanofibers for a wide range of potential applications in biosensing and environmental monitoring.
研究领域:
材料科学
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生物传感
·
环境监测
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高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2018
·
IF 3.235
Jing Zheng,Min Zhang,Yang Ling,Jingli Xu,Shunzhong Hu,Tasawar Hayat,Njud S. Alharbi,Fan Yang
In this paper, multifunctional nanotubes were prepared by directly combing iron oxide (Fe 3 O 4 ) nanoparticle(NPs) decorated carbon nanotubes (CNTs), and palladium (Pd) NPs together with polypyrrole (PPy) in a facile way. Firstly, magnetic CNT composite (CNTs/Fe 3 O 4 ) was synthesized by the high temperature decomposition process, then PPy could be easily immobilized on the magnetic CNTs. Furthermore, Pd NPs were accumulated on the surface of CNTs/Fe 3 O 4 @PPy to obtain one dimensional CNTs/Fe 3 O 4 @PPy/Pd composite. The composite extraordinary amplified the electrochemical response, providing a highly sensitive electrochemical platform for triclosan detection. This electrochemical sensors had the advantage of fast response, cheap instrument, low cost, simple operation, high sensitivity and real-time detection in situ condition. Moreover, the sensor exhibited a wide linear response range for triclosan (2.247 × 10 −9 M to 2.752 × 10 −7 M) with a detection limit of 1.417 × 10 −9 M, respectively. In addition, the electrochemical sensor reported herein was applied for the detection of triclosan in real samples, revealing promising applications in developing the sensor for environmental inspection and monitoring.
研究领域:
材料科学
·
环境科学
·
分析化学
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Lijuan Yan,Yingjiao Ma,Xiaoyin Cao,Yanju Jing,Min Su,Jiyan Li,Zhaoqi Zhu,Weidong Liang,Hanxue Sun,An Li
Solar interfacial evaporation (SIE) is one of the most prospective solar energy harvesting technologies for solving the scarcity of freshwater resources. Herein, we report a novel photothermal membrane polycarbonate (PC)@polypyrrole (PPy) (PC@PPy) adopting to breath figure method followed by surface chemistry modification, and assemble a double-layer solar interfacial evaporator consisting of PC@PPy photothermal membrane as the upper layer and plant fiber-wrapped expanded polyethylene (EPE) foam as the bottom layer for SIE. Due to the abundant porous structure and strong light absorption of the PC@PPy membrane, excellent insulation of the EPE sponge, the as-prepared PC@PPy-EPE evaporator exhibits a high evaporation of 1.78 kg m -2 h −1 and photothermal conversion efficiency of 93.57%, and outstanding evaporation stability and resistance in 16% wt NaCl with an evaporation of 1.58 kg m -2 h −1 under 1 sun irradiation. Moreover, the PC@PPy photothermal possess superior flexibility and strong mechanical properties. Coupling with cost-effective, environment-friendly, simple and easily scale-up breath figure preparation method, the PC@PPy-EPE generator has broad application prospects in SIE.
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高影响因子
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Bobo Hu,Nana Zhang,Huihui Li,Chong Sun
Sensitive and reliable quantification of histamine (His) is essential to ensure food safety. In this study, a sensing material consisting of reduced graphene oxide/polypyrrole (rGO-PPy) composites is successfully prepared by a two-step synthesis method and verified by transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectroscopy, ultraviolet-visible (UV-vis) spectroscopy, X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Based on rGO-PPy, an electrochemical method is established, and the electrochemical behaviours are studied by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and differential pulse voltammetry (DPV). The experimental parameters, such as the detection method, the concentration and volume of rGO-PPy modified on GCE, and the pH value of the buffer solution, are optimized. Under the optimized conditions, the linear equation of the electrochemical sensor to His is I (μA) = 0.01047c + 0.1842 (R 2 = 0.9970) with a linear range of 10~800 μM, and the detection limit is 3.01 μM. Practical samples are also detected, which proves that the sensor has great application prospects. Therefore, this idea and method will make an excellent contribution to food safety.
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PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Yi Wang,Jie Wang,Dong Wei,Lan Xu
In this study, a multicore-shell ternary composite electrode material (MnO 2 @Ppy@NPCNFs) with excellent electrochemical performances was prepared by using surface modification, in which core–shell Ppy@N-doped porous carbon nanofibers (Ppy@NPCNFs) with large specific surface area and high conductivity were used as the substrate (a multicore layer), and MnO 2 was loaded on the substrate by hydrothermal synthesis to form a shell layer, further improving the SC of electrode material. The parameters of hydrothermal growth of MnO 2 on Ppy@NPCNFs were explored by means of the control variable method and response surface methodology, and the optimal parameters were predicted and verified. Electrochemical test results showed that the SC of MnO 2 @Ppy@NPCNFs prepared under the optimal reaction parameters was as high as 595.77 F g −1 , and its capacitance retention was 96.2 % after 1000 cycles. Moreover, a symmetric supercapacitor prepared with the optimal multicore-shell electrode showed an energy density of 9.36 Wh kg −1 at a power density of 1000 W kg −1 and a retention rate of 92.46 % after 1000 cycles, indicating the promising application of multicore-shell ternary composite electrode material in high-performance supercapacitors.
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高影响因子
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