Journal of Energy Storage
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2025
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IF 9.8
Huaiyu Wang,Yanjun Cai,Zhiran Zhang,Yu Liu,Rui Zhang,Ruiqiang Huo,Ruiyao Wu,Huiyun Cheng,Jiao Yin,Jian Yin,Zhi Su,Hui Zhu
Zinc-ion hybrid supercapacitors (ZHSCs) not only combines the advantages of batteries and supercapacitors, but also features low cost and environmental friendliness. However, the poor active site density and sluggish diffusion kinetics of carbon cathode brings about low capacity and terrible rate capability of ZHSCs. In this work, an activation assisted template procedure is proposed to synthesize nitrogen and phosphorous dual-doped hierarchical porous carbon (NP-HPC), where phytic acid acts as both doing precursor and activation medium. Benefitting from the synergetic modulation in porosities and surface functionalities, the optimized NP-HPC-2 delivers high capacity (394.51 F g −1 at 0.2 A g −1 ), superior rate capability (200.21 F g −1 at 50 A g −1 ) and excellent durability (95.7 % retention over 10,000 cycles). Consequently, the assembled ZHSC exhibits a remarkable energy density of 140 Wh kg −1 and an impressive power density of 40 kW kg −1 . Density functional theory (DFT) calculations revealed that the introduction of P doping adjust the distribution of local charge density of edged N with a lowered adsorption energy barrier for Zn 2+ storage. This work not only sheds light on the integrative effect of structure modulation and functionality regulation but also provide a feasible solution for the preparation of carbon cathodes towards high energy and power density ZHSCs.
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Journal of Water Process Engineering
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2024
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IF 6.3
Wenjie Wu,Weijia Zhou,Shuangcheng Li,Jieyu Wan,Jun Shao,Changfeng Wan,Shuiliang Chen,Haoqing Hou
Accumulation of oil spills and industrial emissions causing serious damage to the natural environment, and the treatment of oily waste water plays an essential role in resource utilization and environmental protection. Although lots of materials have been reported for the oil/water separation, most of them are still high cost and unstable during application in complicated environment. In this study, the phytic acid (PA) was anchored on the surface of stainless steel mesh (PA-SSM). Results revealed that the PA-SSM exhibited superhydrophilic/underwater superoleophobic properties, and presented ultra-high flux during separating the ether/water mixture (1.3 × 10 5 L·m −2 ·h −1 ). When the PA-SSM was employed to separate the high viscosity freezing oil/water mixture, it also presented a high flux of 1.1 × 10 5 L·m −2 ·h −1 , and the separation efficiency was still higher than 99.8 % even after consecutive separated for 60 times. Moreover, the PA-SSM exhibited excellent resistance to acid and salts, mechanical stability and contamination. The simple preparation, low cost and excellent performance of PA-SSM provide an option for the efficient separation of oil/water mixture in the continuous separation and harsh environment.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2024
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IF 20.2
Weichen Wang,Hongke Zhang,Fangyuan Zhou,Yidan Wang,Zhiyu Xiang,Wanbin Zhu,Hongliang Wang
Developing cost-effective and highly active catalysts for the selective hydrogenation of furfural to target products is significant yet remains a substantial conundrum in the chemical industry. Herein, we present a phytic acid-assisting pyrolysis strategy to phase-controlled synthesis of a series of nickel phosphides catalysts (Ni 3 P/mSiO 2 , Ni 12 P 5 /mSiO 2 and Ni 2 P/mSiO 2 ), which exhibited phase-dependent catalytic performance in furfural hydrogenation. Ni 12 P 5 /mSiO 2 achieved the highest yield (97.3 %) of cyclopentanone under 1 MPa H 2 at 150 °C, and Ni 3 P/mSiO 2 could further hydrogenate cyclopentanone to a 60.8 % yield of cyclopentanol when the H 2 pressure increased to 2 MPa. Meanwhile, Ni 2 P/mSiO 2 demonstrated temperature-controlled selectivity for switching between furfuryl alcohol and cyclopentanone. Detailed characterizations and density functional theory calculations elucidated that the differences in catalytic performance were primarily attributed to the hydrogenation ability and acidity of catalysts as well as furfural adsorption configuration, which were determined by the tunable crystal phases of nickel phosphides. This work paves the promising avenue for the rational design of metal phosphide catalysts and harnessing their considerable potential for biomass conversion.
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Sustainable Materials and Technologies
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2024
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IF 8.6
Weijun Wu,Junfang Chang,Yanyang He,Zhiyong Guo,Sui Wang,Jie Mao
Conductive hydrogels have broad application prospects in the field of self-powered sensors and energy harvesting devices due to their good electrical conductivity and flexibility. However, at low temperatures, conductive hydrogels are usually frozen, resulting in problems such as poor electrical conductivity and flexibility, which seriously hinder the application of these fields. To address these challenges, phytic acid (PA) was employed as the crosslinker and antifreezing agent in this study. Polyvinyl alcohol (PVA), 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS), chitosan (CS), and PA were used as raw materials to successfully synthesize PVA/AMPS/CS/PA (PACP) multifunctional conductive hydrogels with outstanding antifreeze and water retention properties (freezing point below −80 °C, 30-day water loss rate of 3.5%). In addition, PACP hydrogels exhibit exceptional electrical conductivity of up to 9.4 S/m, along with antibacterial and biocompatible properties, enabling their utilization as wearable sensors on human skin tissue. Notably, the PACP hydrogel-based triboelectric nanogenerator (PACP-TENG) excels in accurately monitoring human motion and powering small electronic devices, facilitating remote control of small light switches. The resulting open circuit voltage is as high as 314 V at 25 °C and about 110 V at low temperature. Therefore, PACP hydrogels with excellent properties are expected to expand their applications in these fields.
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LANGMUIR
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2024
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IF 3.7
Fashuo Du,Anyao Ma,Wenxiang Wang,Liangjiu Bai,Hou Chen,Donglei Wei,Kun Yin,Lixia Yang,Huawei Yang
Cellulose nanocrystals (CNCs) have garnered significant attention as a modifiable substrate because of their exceptional performances, including remarkable degradability, high tensile strength, high elastic modulus, and biocompatibility. In this article, the successful adsorption of phytic acid (PA) onto the surface of cellulose nanocrystals @polydopamine (CNC@PDA) was achieved. Taking inspiration from mussels, a dopamine self-polymerization reaction was employed to coat the surface of CNCs with PDA. Utilizing Pickering emulsion, the CNC@PDA–PA nanomaterial was obtained by grafting PA onto CNC@PDA. An environmentally friendly hydrogel was prepared through various reversible interactions using poly(acrylic acid) (PAA) and Fe3+ as raw materials with the assistance of CNC@PDA–PA. By multiple hydrogen bonding and metal–ligand coordination, nanocomposite hydrogels exhibit remarkable mechanical properties (the tensile strength and strain were 1.82 MPa and 442.1%, respectively) in addition to spectacular healing abilities (96.6% after 5 h). The study aimed to develop an innovative approach for fabricating nanocomposite hydrogels with exceptional self-healing capabilities.
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PubMed
高影响因子
Food Bioscience
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2024
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IF 4.8
Li Jin,Xinyu Zheng,Chenxi Yu,Ping Li,Guiran Xiao
Metastasis is one of the most important factors related to malignant tumor development and therapeutic failure. Phytic acid (PA), a poly-phosphorylated inositol derivative in plant seeds and grains, has been shown to have antitumoral activity. However, the effect of PA on tumor metastasis and the underlying mechanisms remain uncharacterized. In the current study, we aimed to identify the effect of PA on tumor metastasis by employing a Drosophila model of malignant tumor Raf GOF Scrib −/− . We observed that PA supplementation in food inhibited the invasion and migration of tumors. Further studies indicated that PA drives Yki phosphorylation and inactivation through Lats kinase, which subsequently results in decreased expression of the JAK/STAT pathway ligands unpaired cytokines (Upds). Moreover, the reduced JAK/STAT pathway inhibits the recruitment and proliferation of hemocytes. To summarize, these findings provide valuable pathological and mechanistic insights into the potential application of PA for functional food or natural medicine development.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Qin Shi,Jialve Zhang,Zhenjie Duan,Yanqing Wang,Yumin Wu,Yuetao Liu
With the rapid development of science and technology, the discharge of industrial wastewater, especially dye wastewater, has caused great harm to the ecological environment. In response to the pollution caused by cationic organic dyes in industrial wastewater, this study employed free radical polymerization to prepare a new hydrogel adsorbent, PAA-PA-CMC, which exhibits both reusability and a large adsorption capacity. Phytic acid (PA) and carboxymethyl cellulose (CMC) were introduced into the acrylic acid-based polymer network using N, N ‘-methylene-bisacrylamide (MBA) and glycidyl methacrylate (GMA) as cross-linking agents. Phytic acid serves as both a cross-linking agent and an active component in the adsorption of methylene blue cationic dyes. Methylene blue (MB) adsorption experiments demonstrated that PAA-PA-CMC possesses a porous structure and abundant functional groups, primarily utilizing hydrogen bonds and electrostatic interactions for efficient MB adsorption. The adsorption capacity of PAA-PA-CMC for MB can reach 1005.41 mg/g and has good reusability. After 5 cycles, its adsorption efficiency remains at about 85 %. The adsorption behavior of PAA-PA-CMC conforms to the pseudo-second-order kinetic model and the Langmuir isotherm adsorption model, which is a monolayer chemical adsorption. In summary, the PAA-PA-CMC hydrogel prepared in this investigation shows great potential for treating MB dye wastewater.
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PubMed
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ACS Applied Nano Materials
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2024
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IF 5.3
Chunyu Li,Mengqing Zhou,Congling Shi,Xiaodong Qian,Lian Yin,Keqing Zhou
It remains a huge challenge to clean leaks of oil and various organic solvents quickly and efficiently, especially for special conditions such as high-viscosity oils, corrosion from acid/alkali solutions, high-temperature damage, and fire risk. The adsorbents with a three-dimensional porous structure and excellent resilience have been recognized as prospective candidates for dealing with oil–water separation problems. In this study, solar responsive and multifunctional polyurethane foams were successfully fabricated by compounding photothermal and hydrophobic components by both internal and external means. Due to the interface adhesion, polydopamine/MXene nanosheet/polyaniline/polydimethylsiloxane polyurethane (PMPP–PU) foams prepared by introducing PDA/MXene nanoparticles and phytic acid (PA)/PANI micronano coatings exhibited a high adsorption capacity up to 61.4 g/g for different kinds of low-viscosity organic solvents. Driven by 1 kW/m2 illumination intensity, the adsorption capacity of PMPP–PU for high-viscosity oil increased to 29.4 g/g, realizing a 203% rise compared to pure PU. Also, the modified foams achieved rapid extrusion and cyclic adsorption of adsorbed solvents, and PMPP–PU showed an adsorption efficiency of close to 90% after 20 cycles. Besides, the prepared adsorbent foams remained persistent and maintained stable hydrophobicity under extreme environmental conditions and were not significantly damaged even by fire attack. This work presents a competitive strategy for the separation and recovery of low-viscosity organic solvents and high-viscosity oils.
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CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Yaru Sun,Yan Liu,Yanyan Zou,Jun Wang,Fan Bai,Junbo Yan,Fenglei Huang
In this work, novel core–shell Fe 3 O 4 nanoparticles were prepared by self- assembly technology using phytate-melamine aggregates (PM) or phytate-melamine-Fe 3+ aggregates (PM-Fe) as building block. A polyurea (PUA) matrix was filled with magnetic nanoparticle. The influence of Fe 3 O 4 , Fe 3 O 4 @PM or Fe 3 O 4 @PM-Fe content and dispersion on the mechanical and electromagnetic wave (EMW) absorption properties of PUA composite were investigated. Good dispersion of modified Fe 3 O 4 in PUA matrix was obtained. Loading well-dispersed Fe 3 O 4 significantly enhanced the mechanical properties of their PUA nanocomposite under quasi-static tensile, nanoindentation, and dynamic compression tests. Excellent EMW absorption performance of PUA/Fe 3 O 4 @PM nanocomposite was desired. Although well-dispersed Fe 3 O 4 @PM could effectively enhance the mechanical properties, nonetheless it surprisingly plays a negative role in the EMW absorption performance. The Fe 3 O 4 @PM with high dispersion and interfacial compatibility in the PUA matrix was detrimental to EMW absorption performance, which contradicts the well accepted EMW absorption mechanisms. A novel mechanism and model were suggested, along with a fresh understanding of the role of Fe 3 O 4 in the EMW absorption of PUA composite. Furthermore, the Fe 3 O 4 @PM-Fe, obtained by constructing a conductive network on the surface of Fe 3 O 4 @PM, was used to investigate this assumption. The radar cross section simulation also demonstrated the superior EMW attenuation capability of PUA nanocomposites in the service condition. This work is beneficial to the development of EMW absorber, not limited to Fe 3 O 4 magnetic nanoparticles.
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APPLIED SURFACE SCIENCE
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2024
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IF 6.3
Hua Pan,Xinxing Zhan,Chao Wang,Juan Tian,Zijian Gao,Lingyun Zhou,Yadian Xie,Xin Tong
The interaction between catalysts and supports is recognized as a crucial factor influencing catalytic activity and stability. However, the carbon materials, which have been widely employed as the support at present, encounter challenges including intricate composition and the difficulty of precise control. In this study, the fullerene-derived carbon materials serve as support to electrocatalysts with low platinum. Fullerene-based materials, as the only carbon material with a well-defined molecular structure, have a controllable active site structure, which can provide a reaction model for studying metal-support interactions. Four kinds of fullerene-derived catalysts such as Pt/fullerene, Pt/nitrogen-doped fullerene, Pt/sulfur-doped fullerene, and Pt/phosphorus-doped fullerene, were synthesized. Once the coordination environment of the Pt particles was controlled, thus their catalytic performance was modulated. Despite a platinum loading of only 4.2%, Pt/N-fullerene demonstrates superior oxygen reduction activity and stability compared to commercial Pt/C (20%). Density functional theory calculations show that the introduction of heteroatoms can change the surface charge distribution of fullerenes, in which N-fullerene has a more negative electrostatic potential and can effectively anchor Pt. This research establishes a foundation for understanding the catalysts-support interaction and further precise control of the coordination environment of Pt. This provides new insights for designing efficient ORR catalysts.
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iScience
·
2024
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IF 4.6
Qi Xu,Wentao Wang,Yangyang Zhang,Huanhuan Liu,Xiaowen Wang,Suyuan Zeng,Genqiang Zhang
The production of high-demand syngas with tunable ratios by CO 2 electroreduction has attracted considerable research interest. However, it is challenging to balance the evolution performance of H 2 and CO with wide H 2 /CO ratios, while maintaining high efficiency. Herein, nitrogen-coordinated hierarchical porous carbon spheres with varying phosphorus content (P x NC-T) are assembled to regulate syngas production performance. The precise introduction of P modulates the local charge distribution of nitrogen-coordinated carbons, thereby accelerating the protonation process of ∗ CO 2 -to- ∗ COOH and promoting moderate H ∗ adsorption. Specifically, syngas with wide H 2 /CO ratios (0.60–4.98) is obtained over a low potential range (−0.46 to −0.86 V vs. RHE). As a representative, P 1.0 NC-900 presents a remarkable current density (−152 mA cm −2 ) at −1.0 V vs. RHE in flow cells and delivers a decent peak power density (1.93 mW cm −2 ) in reversible Zn-CO 2 batteries. Our work provides valuable insights into the rational design of carbon-based catalysts for CO 2 reduction.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Chongming Wang,Sujie Shan,Zhengyu Yang,Xinpeng Xu,Xingning Huang,Xi Li,Songqi Liu,Boling Li,Yao Xu,Dapeng Li
Mounting evidence indicates that eliminating phosphate (P i ) alone is not enough to lower outbreak risks of undesirable algae, and synchronously sequestrating organic phosphorus species (OPs) dissolved in overlying water and residing in sediments cannot be ignored. However, more efforts were focused on the immobilization of P i than OPs because of insufficient understanding and analytical challenges. Herein, CaO 2 -loaded halloysite nanotubes/lanthanum-crosslinked sodium alginate (La-CaO 2 @HNTs/SA) hydrogel beads were newly developed and employed as a capping material for efficiently sequestrating P i and OPs from eutrophic water and sediment. Batch sorption results showed that the La-CaO 2 @HNTs/SA has a high uptake capacity towards P i (i.e., 44.05 mg-P/g) and Myo -inositol hexakisphosphate (IHP, a representative pollutant of OPs, 36.28 mg-P/g), and good selectivity for P in the presence of NO 3 – , Cl − , and HCO 3 – , profited by synergy of electrostatic attraction, inner-sphere complexation, surface precipitation, and partial degradation. After applying La-CaO 2 @HNTs/SA, P levels in overlying water could rapidly reduce from 0.95 to 0.01 mg-P/L within 120 min. Further thin-layer capping experiments (60 days) indicated that La-CaO 2 @HNTs/SA performed very well in immobilizing P i and OPs in overlying and pore waters and enhancing reductant-soluble P transformation (BD-P; ∼19 % to 11 %) to more stable HCl-extracted P (HCl-P; ∼33 % to 43 %) in sediments under continuous P input, with minor effect on benthic microorganisms. These findings advance the use of eco-friendly La-CaO 2 @HNTs/SA in eutrophication alleviation via simultaneous sequestration of P i and OPs.
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