ENVIRONMENTAL SCIENCE & TECHNOLOGY
·
2020
·
IF 7.864
Tian Tian,Ke Zhou,Yu-Sheng Li,Dong-Feng Liu,Han-Qing Yu
Phosphorus (P) recovery from wastewater can be completed by iron-involved autotrophic denitrification via forming Fe(III)–P precipitates and/or adsorbing P onto Fe(III) oxyhydroxides. However, so far, most studies focused on the final P-containing products, while the P-capturing pathways in such a process remain unclear. In this work, autotrophic iron-dependent denitrification (AIDD) was used as a typical anoxic iron-involved P-capturing biosystem to investigate the main P recovery pathways. The AIDD biosystem showed a relatively stable capability of capturing P coupled with nitrate reduction. Direct formation of amorphous Fe(II)–P precipitates after the phosphate was fed, followed by microbially driven oxidation into Fe(III)–P minerals, was found to be the primary pathway for the P capture. In addition, adsorption of phosphate onto the formed iron oxyhydroxides also contributed to the P recovery. This work provides better understanding about recovering P in AIDD and iron-involved denitrification and highlights the important roles of iron oxidizers in the iron-related biological wastewater treatment processes.
研究领域:
环境工程
·
水处理技术
·
生物地球化学
·
环境微生物学
·
资源回收
✓ 已验证
DOI
高影响因子
MATERIALS RESEARCH BULLETIN
·
2024
·
IF 5.3
Chuanyun Yang,Xingjian Zhang,Zhengdao Li,Zhishuai Wang,Jiping Shi,Haiquan Xie,Ting Li,Yong Zhou
A series of hybrid films were designed and fabricated by in situ growth of Ag 2 S nanoparticles with varying content on BiVO 4 nanosheets deposited on stainless steel mesh. The formation of a p-n heterojunction between Ag 2 S and BiVO 4 enabled an extended spectral response range and facilitated the separation of charge carriers through a single directional pathway for electron transport. Exploiting these advantages, Ag 2 S/BiVO 4 composites were employed in various photocatalytic applications under simulated solar irradiation. The results demonstrated, in terms of water purification, that the composite not only possessed photocatalytic ability to degrade RhB or Cr(VI) individually but also exhibited significantly enhanced photocatalytic efficiency in simultaneously removing mixed pollutants containing RhB and Cr(VI). In terms of CO 2 conversion, Ag 2 S/BiVO 4 also displayed a stronger photocatalysis capability compared to pure BiVO 4 film. Furthermore, the immobilized Ag 2 S/BiVO 4 film exhibited improved mechanical strength and long-term stability, making it highly suitable for practical applications.
研究领域:
材料科学
·
环境科学
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DOI
高影响因子
BIOMATERIALS
·
2015
·
IF 8.557
Jiansheng Liu,Yajing He,Jun Zhang,Jiajia Li,Xiangrong Yu,Zhonglian Cao,Fanmin Meng,Yuwu Zhao,Xunyi Wu,Teng Shen,Zhen Hong
Despite optimal therapeutic regimen with currently available antiepileptic drugs (AEDs), approximately a third of epilepsy patients remain drug refractory. Region-specific overexpression of multidrug efflux transporters at the blood–brain barrier, such as P-glycoprotein (P-gp), might contribute to multidrug resistance (MDR) by reducing target concentrations of AEDs. Therefore, development of nanomedicine that can modulate P-gp function as well as facilitate targeted AEDs delivery represents a promising strategy for epilepsy intervention. To achieve this, we sought to exploit the possibility of combination of active targeting function of tryptophan by transporter-mediated endocytosis and overcoming MDR by Pluronic block copolymers . Herein, a tryptophan derivate (TD) functionalized Pluronic P123/F127 mixed micelles encapsulating LTG (TD-PF/LTG) was developed to promote AEDs delivery to epileptogenic focus. TD-PF/LTG was about 20 nm in diameter with a spherical shape and high encapsulation efficiency. A rat epilepsy model with pilocarpine was established to evaluate the brain penetration efficiency of the LTG-incorporated polymeric micellar formulation, compared with free LTG formulations. Studies showed that TD-PF/LTG was more efficient than PF/LTG as well as free LTG in delivering the drug to the brain, especially the hippocampus. The enhanced targeted delivery could be ascribed to the increased tryptophan uptake at epileptogenic focus as well as P-gp modulation property of the nanomaterial . Taken together, TD-conjugated Pluronic micelles showed promising potential as a nanoplatform for the delivery of AEDs in refractory epilepsy.
研究领域:
神经科学
·
药理学
·
纳米医学
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产品关联
DOI
PubMed
高影响因子
ACTA MATERIALIA
·
2025
·
IF 9.3
Xiang Wei,Minhui Yuan,Meng Jiang,Huang Gong,Jing Shuai,Jiayi Ye,Lianjun Wang,Qihao Zhang,Wan Jiang
Zintl-phase thermoelectrics with CaAl 2 Si 2 -type structures exhibit desirable “phonon-glass electron-crystal” behavior. However, the development of environmentally friendly p-type counterparts remains challenging. While n-type Mg 3 Sb 2 -based compounds have achieved high figures of merit ( zT > 2.0), their integration with non-Zintl systems is hindered by thermal and chemical mismatches. Moreover, many existing p-type Zintl compounds rely on toxic (Cd, Pb) or scarce (Yb, Ge) elements, restricting their scalability and sustainability. Here, we report a scalable, rare-earth- and toxicity-free p-type Zintl compound, Ca 0.5 Mg 1.297 Ag 0.003 Zn 1.2 Sb 2 , developed via targeted Mg-site substitution. First-principles calculations reveal that Ca substitution at Mg1 sites induces beneficial electronic structure modifications, including bandgap widening, valence band sharpening, and an indirect-to-direct bandgap transition, collectively enhancing carrier mobility (50 cm 2 ·V -1 ·s -1 ) and strengthening carrier-phonon scattering at elevated temperature. Simultaneously, trace Ag doping at Mg2 sites precisely tunes the carrier concentration by nearly one order of magnitude, achieving improved electrical conductivity while maintaining ultralow thermal conductivity. As a result, the optimized compound achieves a peak zT of 0.81 at 773 K and an average zT of 0.50 over 300–773 K. These results demonstrate a chemically stable, sustainable, and high-performing Zintl platform, offering a promising strategy for advancing eco-friendly thermoelectric technologies.
研究领域:
材料科学
·
热电学
·
固体物理
·
能量转换
·
电子结构
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2020
·
IF 6.155
Jiajia Ye,Xuting Li,Guang Xia,Guanghao Gong,Zhiqiang Zheng,Chuanzhong Chen,Cheng Hu
We report for the first time a Na-ion battery anode material composed of P-doped CoSe 2 nanoparticles (P-CoSe 2 ) with the size of 5–20 nm that are uniformly embed in a 3D porous honeycomb-like carbon network. High rate capability and cycling stability are achieved simultaneously. The honeycomb-like carbon network is rationally designed to support high electrical conductivity, rapid Na-ion diffusion as well as the accommodation of the volume expansion from the active P-CoSe 2 nanoparticles. In particular, heteroatom P-doping within CoSe 2 introduces stronger P-Co bonds and additional P-Se bonds that significantly improve the structure stability of P-CoSe 2 for highly stable sodiation/desodiation over long-term cycling. P-doping also improves the electrical conductivity of the CoSe 2 nanoparticles, leading to highly elevated electrochemical kinetics to deliver high specific capacities at high current densities. Benefiting from the unique nanostructure and atomic-level P-doping, the P-CoSe 2 (2:1)/C anode delivers an excellent cycle stability with a specific capacity of 206.9 mA h g −1 achieved at 2000 mA g −1 after 1000 cycles. In addition, this material can be synthesized using a facile pyrolysis and selenization/phosphorization approach. This study provides new opportunities of heteroatom doping as an effective method to improve the cycling stability of Na-ion anode materials.
研究领域:
材料科学
·
电化学
·
纳米能源材料
·
储能技术
·
无机功能材料
✓ 已验证
DOI
高影响因子
Frontiers in Chemistry
·
2022
·
IF 5.545
Su Ruobing,Tang Hongliang,Xi Fengna
Convenient, rapid and sensitive detection of p-nitrophenol (p-NP), one of the priority environmental pollutants, in environmental samples is of great significance. Electrochemical sensor with simple fabrication process, high sensitivity and selectivity, good antifouling, and regeneration performance is highly desirable. Herein, an electrochemical sensing platform is demonstrated based on the integration of vertically-ordered mesoporous silica-nanochannel film (VMSF) on electrochemical pre-activated glassy carbon electrode (p-GCE), which is able to realize ultrasensitive detection of p-NP in environmental samples. Electrochemical pre-activation of GCE is achieved through a simple and green electrochemical polarization process including anodic oxidation at high voltage and the following cathodic reduction at low voltage. The p-GCE possesses enhanced active area and introduced active sites, and enables stable binding of VMSF. VMSF is easily grown on p-GCE through the electrochemically assisted self-assembly (EASA) method within 10 s. Owing to the hydrogen bonding between silanol groups and p-NP, VMSF nanochannels display strong enrichment effect for the detection of p-NP. The developed VMSF/p-GCE sensor can achieve sensitive detection of p-NP ranging from 10 nM to 1 μM and from 1 to 30 μM with a limit of detection (LOD) of 9.4 nM. Considering the antifouling ability of VMSF, detection of p-NP in pond water is achieved.
研究领域:
环境科学
·
分析化学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2025
·
IF 2.6
Bi Mengqi,Liu Wei,Yang Menghui,Huang Naibao
To enhance the corrosion resistance of 316L stainless steel, which is a potential alternative bipolar plate material for PEMWE or PEMFC, Ni–P amorphous coating was prepared by DC electrodeposition method. The results indicated that the coating’s structure strongly related to the phosphorus (P) content. Under specific phosphorus content conditions, a dense coating (Ni–P-30) with typical amorphous characteristics can be obtained, with a uniform surface morphology and no obvious structural defects. In simulated PEMWE environment, Ni–P-30’s corrosion current density decreased by one order of magnitude and the corrosion potential shifted positively by 0.29 V comparing with untreated steel. The excellent corrosion resistance of the amorphous Ni–P coating is attributed by its continuous and dense microstructure, functioning as an effective physical barrier. Meanwhile, during corrosion process, the P will enrich on the surface from the preferential dissolution of nickel in amorphous Ni–P coatings, improving the corrosion potential, reducing the corrosion current and inhibiting the hydration of Ni. Preliminary studies have shown that Ni–P-coated 316L stainless steel can be used as a replacement for graphite as a bipolar plate for PEMWE and PEMFC.
研究领域:
材料科学
·
电化学
·
表面工程
·
能源材料
·
腐蚀科学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Wenhui Ji,Xiaohong Ji,Lin Cao,Wei Wang,Shougang Chen
In this research, a self-healing nano-coating with excellent photo-thermal response to near-infrared (NIR) laser is prepared. This coating incorporates silver sulfide anchored bismuth molybdate (Ag 2 S@Bi 2 MoO 6 ) into a shape memory epoxy resin to achieve for a good photo-thermal conversion capability. The Ag 2 S@Bi 2 MoO 6 p-n heterojunction could photo-generate more electron-holes pairs under the NIR laser irradiation. Also, it shows a wider absorption range of visible light, leading to effectively absorb the light energy, generate enough heat to induce the shape memory recovery in the coating, and seal the scratch. The results indicate that the temperature of EP-1 % Ag 2 S@Bi 2 MoO 6 coating has reached about 88 °C, while good self-healing and anti-corrosion properties with a self-healing rate of 88.41 % have been achieved. Furthermore, calculations based on Density Functional Theory (DFT) and Finite Element Method (FEM) pointed out that the formation of p-n heterojunction effectively has enhanced the photo-thermal effect. This research opens a new way for developing self-healing coatings with an ultra-fast response time and high self-healing efficiency.
研究领域:
材料科学
·
纳米技术
·
涂层与薄膜
·
光化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Yafeng Jin,Ruilong Zhang,Xinyue Song,Didi Tong,Haibo Shang,Fangming Han,Xiaobo Li,Guangri Xu
Elevated levels of methylglyoxal (MG) in the human body are linked to various metabolic disorders. Therefore, developing efficient methods for detecting MG in food and biological fluid is of significant importance. In this work, a high-catalytic-activity conductive copper-based metal–organic framework (Cu 3 (HHTP) 2 ) was synthesized via a hydrothermal method, and a sensitive electrochemical sensor based on a glassy carbon electrode (GCE), denoted as Super-P/Cu 3 (HHTP) 2 /GCE, for monitoring methylglyoxal (MG) was constructed using a composite of Cu 3 (HHTP) 2 and carbon black Super-P. Leveraging the catalytic activity of Cu 3 (HHTP) 2 and the enhanced conductivity provided by Super-P, the sensor demonstrated a wide linear detection range (1–500 µM) and a low detection limit (0.0275 µM). Moreover, it was successfully applied to the determination of MG in milk, beer, urine, and human serum samples, achieving recoveries ranging from 91.7 % to 115.7 %. This work opens up new avenues for the development of innovative electroanalytical tools for MG monitoring in both food and biological fluid.
研究领域:
分析化学
·
生物医学工程
·
食品科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Jinhuan Liang,Xiaoqi Wu,Jingwen Ma,Jin Huang,Jiaxin Wu,Rongrong Zhong,Zehua Zou,Yanjun Hou,Qingxiang Wang,Xuan Zheng
Constructing efficient and durable bifunctional electrocatalysts for overall water splitting (OWS) under industrial current densities remains a critical challenge. Herein, we report a crystalline–amorphous (C–A) Schottky junction catalyst, NiFe(OH)x/Fe7S8/IF, featuring a nanosphere-assembled hierarchical architecture synthesized via a two-step in situ growth strategy. The hybrid integration of conductive Fe7S8 nanorods and amorphous NiFe(OH)x nanosheets generates a robust C–A heterointerface. Mechanistic investigations reveal that the built-in electric field (BIEF) at the Schottky interface not only narrows the band gap of NiFe (oxy)hydroxide to improve charge transport, but also modulates the adsorption behavior of reaction intermediates by tuning the d/p-band center proximity (Δεd–p) of surface reaction sites. First-principles calculations demonstrate that Δεd–p serves as a reliable electronic descriptor for optimizing HER and OER pathways of NiFe (oxy)hydroxide-Fe7S8 heterointerface via balancing H adsorption and weakening OOH binding, respectively. Benefiting from these unique electronic regulations, the resulting catalyst exhibits exceptional bifunctional electrocatalytic performance, requiring overpotentials of only 359 mV for the hydrogen evolution reaction (HER) at 1 A cm–2 and 380 mV for the oxygen evolution reaction (OER) at 500 mA cm–2. When integrated into a two-electrode electrolyzer, the NiFe(OH)x/Fe7S8/IF couple achieves a low cell voltage of 1.42 V at 10 mA cm–2 and sustains 1 A cm–2 over 300 h with minimal current density decay. This work sheds light on a generalizable interfacial design strategy and introduces Δεd–p as a conceptual framework for the rational design of cost-effective, high-performance water-splitting electrocatalysts.
研究领域:
电催化
·
材料科学
·
能量转换
·
纳米材料
·
可再生能源
·
界面工程
✓ 已验证
产品关联
DOI
高影响因子
Catalysts
·
2021
·Vol. 11
·期 12
·1550
·
IF 4.146
Hongzhou Dong,Yingjie Chen,Chong Gong,Lina Sui,Qiong Sun,Kangle Lv,Lifeng Dong
Due to slow kinetics of oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) during discharging and charging processes, it is essential to rationally design and synthesize non-precious metal bifunctional electrocatalysts with good performance for metal-air batteries. Herein, Ag-MnFe2O4heterojunction nanoparticles supported on N, S, P-codoped graphene (NSPG) are developed with enhanced ORR and OER bifunctional electrocatalytic activities and stability. In contrast, S, P-doped graphene (SPG) and N, P-doped graphene (NPG) show less stabilization for the heterojunction particles. For example, under alkaline conditions, the ORR half-wave potential of Ag-MnFe2O4/NSPG can reach 0.831 V, and the over potential for OER is 0.56 V at the current density 10 mA·cm−2. Furthermore, Ag-MnFe2O4/NSPG shows better methanol resistance and durability than Pt/C catalysts.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·11574
·
IF 15.7
Zhang Xiaojian,Hao Lu,Xie Juxuan,Tan Zhaohong,Li Shuaiqi,Gan Chongwu,Xiong Wei,Duan Xianghao,Li Shuai,Xu Zishuo,Zhang Kai,Wang Yazhong,Tang Haoran,Huang Fei
Electrochromic devices enable dynamic modulation of light and heat, yet their broader adoption is hindered by limited color tunability, slow switching kinetics, and low coloration efficiency. Here, we present a complementary organic electrochromic device that addresses these challenges by employing dual conductive polymers: poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) and poly(benzodifurandione). The resulting device delivers exceptional performance, featuring a high optical contrast of 51% at 570 nm, ultrafast switching speeds (0.17/0.36 s for coloration/bleaching), a record-high coloration efficiency (1688 cm 2 C⁻ 1 at 550 nm), and excellent cycling stability over 10,000 cycles. By integrating the device with a semitransparent organic solar cell, we realize a fully self-powered smart window with reducing indoor temperatures by 7 °C. Furthermore, coupling the electrochromic filter with a 4 × 4 organic photodetector array featuring on-chip Fabry–Pérot cavities enables a miniaturized spectrometer with 7.2 nm spectral resolution. This multifunctional electrochromic platform seamlessly bridges smart-window technology and spectral sensing, paving the way for energy-efficient, and compact optoelectronic systems.
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产品关联
DOI
PubMed
高影响因子
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