JOURNAL OF FOOD COMPOSITION AND ANALYSIS
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2025
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IF 4.6
Jian Xiao,A.-Lin Xia,Tao Geng
In order to accurately quantify the content of light elements in food samples, a method based on portable energy dispersive X-ray fluorescence (p-XRF) technology combined with second-order calibration algorithm was proposed to simultaneously quantify phosphorus (P), sulfur (S), potassium (K) and calcium (Ca) in different food samples. Firstly, the XRF response signal matrix of each food sample was obtained by changing the test current and voltage. Secondly, the alternating penalty trilinear decomposition (APTLD) algorithm was used to analyze the three-way data array stacked by multiple samples. The results showed that second-order calibration algorithm could accurately extract the spectral signal of the target element even if there were serious background interference and signal overlap. The predicted recovery rates of the target elements in the food samples are 82 %–119 %. The LOD and LOQ of P, S, K, and Ca are 3, 3, 20, 8 ppm and 9, 11, 68, 26 ppm, which proves that this method can accurately quantify light elements in food samples. This study demonstrated that p-XRF combined with second-order calibration is an effective method for the determination of light elements in food and has broad practical application prospects.
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Separations
·
2024
·Vol. 11
·期 9
·268
·
IF 2.5
Jiamin Sun,Ling Tang,Chenglong Li,Jingjing Quan,Li Xu,Xingming Ning,Pei Chen,Qiang Weng,Zhongwei An,Xinbing Chen
ZnIn2S4nanosheets are a promising photoanode for driving photoelectrochemical (PEC) hydrogen fuel production; nevertheless, poor charge separation and sluggish surface reaction kinetics hinder its PEC performance to an extreme degree. Herein, a facile element doping strategy (i.e., P element) was developed to obtain the desired photoanode. As a result, the ZnIn2S4-P (ZIS-P5) photoanode exhibits a remarkable photocurrent density of 1.66 mA cm−2at 1.23 V versus a reversible hydrogen electrode (VRHE) and a much lower onset potential of 0.12 V vs. RHE for water oxidation. Careful electrochemical analysis confirms that the P doping and sulfur vacancies (Sv) not only facilitate the hole transfer, but also boost surface reaction kinetics. Finally, the “killing two birds with one stone” goal can be achieved. Moreover, the optimized photoanode also presents high PEC performance for urea oxidation, obtaining a photocurrent density of 4.13 mA cm−2at 1.23 V vs. RHE. This work provides an eco-friendly, simple and effective method to realize highly efficient solar-to-hydrogen conversion.
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ACS Sensors
·
2024
·
IF 8.2
Yangyang Huo,Limin Qiu,Tianqi Wang,Hui Yu,Wenyuan Yang,Xiangting Dong,Ying Yang
The development of a portable, low-cost sensor capable of accurately detecting H2S gas in exhaled human breath at room temperature is highly anticipated in the fields of human health assessment and food spoilage evaluation. However, achieving outstanding gas sensing performance and applicability for flexible room-temperature operation with parts per billion H2S gas sensors still poses technical challenges. To address this issue, this study involves the in situ growth of MoS2 nanosheets on the surface of In2O3 fibers to construct a p–n heterojunction. The In2O3@MoS2-2 sensor exhibits a high response of 460.61 to 50 ppm of H2S gas at room temperature, which is 19.5 times higher than that of the pure In2O3 sensor and 322.1 times higher than that of pure MoS2. The In2O3@MoS2-2 also demonstrates a minimum detection limit of 3 ppb and maintains a stable response to H2S gas even after being bent 50 times at a 60° angle. These exceptional gas sensing properties are attributed to the increase in oxygen vacancies and chemisorbed oxygen on In2O3@MoS2-2 nanofibers as well as the formation of the p–n heterojunction, which modulates the heterojunction barrier. Furthermore, in this study, we successfully applied the In2O3@MoS2-2 sensor for oral disease and detection of food spoilage conditions, thereby providing new design insights for the development of portable exhaled gas sensors and gas sensors for evaluating food spoilage conditions at room temperature.
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RESEARCH ON CHEMICAL INTERMEDIATES
·
2025
·
IF 3.5
Wang Liping,Tao Xin,Li Renxing,Jiang Lirong,Chen Lin,Li Bingqian
Hydrogen is recognized as a clean and efficient energy carrier, and photocatalytic hydrogen generation represents a pivotal technology for sustainable energy development. In this work, a highly active noble metal-free ZnCo 2 O 4 /ZnO/C composite has been successfully synthesized via in situ carbonization of a ZnCo-based Prussian blue analogue (PBA), exhibiting remarkable photocatalytic hydrogen generation activity. Under simulated solar irradiation, the optimized composite achieves a high hydrogen generation rate of 2039.3 μmol/(g·h), along with excellent stability. The significantly enhanced photocatalytic activity originates from a unique S-scheme heterojunction charge transfer mechanism and multi-component synergistic effects. Specifically, the intimate interfacial contact among graphitic carbon, ZnCo 2 O 4 , and ZnO facilitates efficient separation and migration of photogenerated electron–hole pairs. The S-scheme mechanism not only preserves photogenerated electrons with strong reduction capability but also enhances charge carrier utilization. Furthermore, the graphitic carbon improves the electrical conductivity and light-harvesting capability. These factors are responsible for the remarkable photocatalytic performance and good stability. This work provides a compelling demonstration of utilizing PBA-derived carbonization as a versatile platform for fabricating efficient, stable, and scalable photocatalysts for practical hydrogen production.
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ANALYTICAL AND BIOANALYTICAL CHEMISTRY
·
2026
·
IF 4.1
Wang Ying,Yan Yiting,Zhang Jun,Yang Lin,Liu Fanghua,Tan Chao,Jiang Xue
p-Benzoquinone (PBQ), as a key toxic derivative of benzene, is widely present in industrial wastewater and the production and manufacturing of daily chemicals. Long-term exposure poses a serious health threat, making the development of rapid and sensitive on-site detection technologies highly significant. Electrochemical methods, due to their simple operation, high sensitivity, and ease of miniaturization, are an ideal approach for detecting PBQ. Co-MOF-74 is extensively used in the electrochemical field because of its structural stability, tunable metal nodes, and large surface area, but its low conductivity limits further applications. In this study, Co-MOF-74 was rapidly synthesized using dielectric barrier discharge (DBD) microplasma technology, and then the large π-conjugated organic ligand HATP was introduced for ligand engineering to successfully prepare Co-MOF-74-HATP. This synthesis strategy is not only efficient, but also the introduction of HATP effectively regulates the material’s electronic structure, significantly enhancing its conductivity and electrocatalytic activity. The electrochemical sensor employs chronoamperometric detection at −0.15 V (vs. Ag/AgCl) and exhibits excellent performance for PBQ, featuring two wide linear ranges (17–1602 µM and 1602–5602 µM) with corresponding sensitivities of 1440 µA·mM −1 ·cm −2 and 497.8 µA·mM −1 ·cm −2 , a low limit of detection (LOD) of 3.43 µM ( S / N = 3), and good reproducibility (RSD < 3.0%). It was successfully applied to the detection of PBQ in actual water samples with recoveries ranging from 90.5% to 102.32%. This work expands the synthesis of ligand-functionalized MOFs through DBD microplasma technology and applies them to the electrochemical detection of PBQ in water samples. Graphical abstract
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Jinming Fu,Jun Yao,Chuiyun Tang,Tatjana Šolević Knudsen,Jian-li Liu
p-Chloroaniline (PCA), a persistent and toxic pollutant in mine tailings, necessitates cost-effective remediation strategies. This study evaluates the degradation of PCA by Fe 2+ /Fe 3+ -catalyzed sodium persulfate (SPS) and sodium percarbonate (SPC) oxidation enhanced by UVA-B irradiation. Among the systems tested, the UVA-B/Fe 2+ /SPS system achieved 96.2% PCA removal within 180 min, outperforming other configurations. Radical scavenging experiments and density functional theory (DFT) calculations suggested that SO 4 • − and •OH radicals were the primary reactive species in SPS systems, while •OH and O 2 ●- were identified as the major reactive species in SPC systems. DFT further revealed vulnerable sites on PCA for radical attack, supporting proposed degradation pathways. ECOSAR toxicity assessment revealed that although PCA acute toxicity decreased, certain intermediates (e.g., azo-compounds) retained high chronic toxicity, highlighting the importance of process optimization. This study provides novel insights into the degradation mechanisms of PCA, establishing a mechanistic foundation for designing solar-enhanced, iron-coupled advanced oxidation processes for industrial-scale remediation of halogenated aromatics in mining environments.
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RESEARCH ON CHEMICAL INTERMEDIATES
·
2026
·
IF 3.3
Shang Suhui,Wang Xiao,Wang Xiaoyu,Li Yutong,Lu Xiang,Liu Zuguang
In this work, a composite carbon-based solid acid (CCSA) was prepared by one-step hydrothermal method via using glucose as carbon resource and concentrated sulfuric acid as a sulfonating agent, along with doped p -toluenesulfonic acid (PT) as a co-sulfonating agent and boric acid (BA) as a synthetic additive. The CCSA obtained was used to catalyze esterification reaction of α -pinene with glacial acetic acid. The results indicate that the addition of PT and BA can improve sulfonic acid groups significantly and show excellent catalytic performance due to the complementary and synergistic effect of incorporated PT and BA, achieving the conversion of α -pinene up to 99.5%, and the selectivity of total esters as high as 56.9%, which is superior to previous report, under the optimized conditions of reaction temperature of 70 °C, reaction time of 7.5 h, and catalyst dosage of 7 wt% (based on the total mass of raw materials). This is because doped PT as a sulfonating agent can increase sulfonic acid groups and also promotes the graphitization of carbon, which in turn limits the sulfonation and the introduction of more sulfonic acid groups. In contrast, doped BA can reduce the graphitization of carbon and is beneficial to the introduction of more sulfonic acid groups. The catalyst also has excellent reusability, still achieving 100% conversion and 32% total ester selectivity after four times recycling. This work provides a novel strategy for producing a composite carbon-based solid acid with excellent catalytic performance, a low cost and simple procedure.
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LANGMUIR
·
2026
·
IF 4.4
Jingjiang Yang,Yifan Wang,Gaigai Duan,Yong Huang,Weijun Li,Shuijian He,Chunmei Zhang,Xiaoshuai Han,Shaohua Jiang
Propylene carbonate (PC)-based electrolyte system has the advantages of a wide liquid range and good Li+ migration kinetics, and therefore has excellent low-temperature application potential in the hard carbon (HC) anode system of lithium-ion batteries (LIBs). However, the slow charge transfer behavior of Li+ at low temperature seriously limits the practical application of hard carbon LIBs. Here, we use p-toluenesulfonyl isocyanate (PTSI) as an additive to improve the SEI structure and optimize the charge transfer behavior of Li+ at the interface. The results show that after adding 1% PTSI, PFHC-1 exhibits higher specific capacity (180.25 mAh/g at −20 °C, 94.83 mAh/g at −40 °C) and lower charge transfer impedance at low temperature. The NCO group in PTSI induces the uniform deposition of Li+; the larger ionic radius of S2– controls the growth of the inorganic structure in the SEI and forms an interface layer with a smaller grain boundary size, which provides a migration path for Li+ at low temperature, facilitating the rapid migration of Li+ and accelerating the charge transfer behavior of Li+ at the interface. This work provides guidance for the commercialization of HC anodes for LIBs and the selection and design of low-temperature electrolytes in the future.
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PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
·
2026
·
IF 7.9
Zimeng Gao,Yueying Li,Xiunan Cai,Zhongqiu Luo,Chaochao Lai,Cuirong Yan,Qian Long,Shiyu Liu,Liming Ning,Xue Yang,Xintao Zhou
The development of environmental and cost‑effective materials capable of simultaneously adsorbing heavy metals and degrading organic pollutants is essential for the safe treatment of industrial wastewater. In this study, porous rubber sludge‑based geopolymer microspheres (RS‑Ms) were fabricated from iron/phosphorus‑rich rubber sludge via alkali‑activation and suspension solidification. In a peroxymonosulfate (PMS) activation system, the RS‑Ms achieved complete degradation (100%) of tetracycline within 20 min, being 10.2 times faster than powdered rubber sludge, while simultaneously adsorbing Cu 2 + with a capacity of 24.5 mg·g⁻¹ . The high performance originates from the hierarchical porous structure that exposes abundant iron sites, and the intrinsic phosphorus that modulates the iron electronic structure, promoting electron transfer to PMS. Notably, Cu 2+ incorporated into the geopolymer framework via ion exchange acts as an “electron shuttle”, accelerating the Fe 3+ /Fe 2+ cycle and enhancing tetracycline degradation by 1.6‑fold in co‑pollutant systems. Mechanism studies indicate Cu 2+ removal occurs through complexation, hydrogen bonding, electrostatic adsorption, and ion exchange, while tetracycline degradation follows synergistic radical (•OH, SO 4 •− ) and non‑radical ( 1 O 2 ) pathways. The RS‑Ms/PMS system also demonstrated excellent stability, broad pH adaptability, and strong anti‑interference capacity in simulated real water. This work provides a feasible and safe strategy for valorizing industrial sludge into dual‑functional remediation materials, contributing to sustainable and hazard‑conscious wastewater treatment practices. Download: Download high-res image (224KB) Download: Download full-size image
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JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
·
2026
·
IF 1.7
Wu Hao,Tanaka Mai,Osawa Naoki,Kubota Masahiko,Kim Seong-Yun
In this work, a silica-based adsorbent incorporating two types of extractants was synthesized through vacuum-assisted impregnation. The synergistic adsorption behaviors of the prepared (TEHTDGA + TAMIA-EH)/SiO 2 –P composite toward 14 types of representative metal ions in simulated high-level liquid waste were systematically investigated under different contact durations, nitric acid concentrations, and solution temperatures, revealing the strong affinity of the (TEHTDGA + TAMIA-EH)/SiO 2 –P composite toward Pd(II), Ru(III), Re(VII), Mo(VI), and Zr(IV). Particularly, Pd(II) rapidly adsorbed on the composite, reaching equilibrium within 2h, with a removal efficiency exceeding 95%. Notably, the adsorption performance of the (TEHTDGA + TAMIA-EH)/SiO 2 –P composite toward Pd(II) remained stable across broad ranges of nitric acid concentration (0.1–5M) and temperature (288–323K), indicating its strong acid tolerance and thermal stability. Furthermore, the adsorbed Pd(II) was effectively eluted using 0.01M thiourea ([HNO 3 ] = 1M) in chromatographic experiments.
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CERAMICS INTERNATIONAL
·
2026
·
IF 6
Zhenjun Qing,Jie Duan,Haiyan Li,Yan Xue
A novel NaLaP 2 O 7 ceramic was fabricated via the solid-state reaction method. The sample sintered at 750 °C demonstrated optimal microwave dielectric properties with an ε r of 7.3, a high Q × f value of 23,510 GHz, and a τ f of –79.3 ppm/°C, which are attributed to its high relative density (95.3%) and homogeneous microstructure. Rietveld refinement confirmed a pure orthorhombic phase ( Pnma ). Furthermore, chemical bond analysis based on the P-V-L theory revealed that the high ionicity of La–O bonds predominantly governs the permittivity, while the strong lattice energy and bond energy of P–O bonds are responsible for the high Q × f value and thermal stability, respectively. Raman spectroscopy further verified the highly ordered crystal structure, shown by the characteristic vibrational modes of the P 2 O 7 4- dimer. These findings not only demonstrate that NaLaP 2 O 7 ceramic is a promising low-permittivity candidate for LTCC applications in millimeter-wave communication, but also provide deep insights into the underlying structure–property relationships.
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2026
·
IF 9.2
Liyuan Qin,Jinzheng Xu,Zhenhua Cui,Jian Zhuang
The development of cost-efficient electrocatalysts is vital for advancing the hydrogen evolution reaction (HER). Herein, NiCoP nanorods are hydrothermally anchored on nitrogen N–P-co-doped mesoporous carbon (NPMC) derived from corn stalk cores. The N–P-co-doped framework (N/P atomic ratio ≈ 1:1) and mesoporous structure provide abundant anchoring sites and rapid transport pathways, which enable uniform dispersion of NiCoP and enhanced transfer of interfacial charge. Systematic regulation of the Ni/Co ratio optimizes the local electronic structure of Ni–Co–P active centers, leading to more favorable H∗ adsorption energetics and accelerated HER kinetics, as supported by density functional theory calculations. The optimized Ni 1.5 Co 0.5 P/NPMC delivers an overpotential of 78 mV at 10 mA/cm 2 and a Tafel slope of 66 mV/dec in 1.0 M KOH. This work establishes a practical design principle in which biomass-derived, doped, and mesoporous carbon supports are processed with composition regulation to create efficient, nonnoble electrocatalysts for the alkaline HER.
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