FOOD RESEARCH INTERNATIONAL
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2026
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IF 8.8
Xueping Zhang,Xinxin Yu,Rongsuo Hu,Jiyue Zhang,Wenjiang Dong
This study aimed to evaluate the effect of roasting temperature on the flavor characteristics of shelled macadamia kernels (SMKs) employing quantitative descriptive sensory analysis, color analysis, and two volatile compound profiling techniques, namely headspace-solid-phase microextraction gas chromatography–mass spectrometry (HS-SPME-GC–MS) and headspace-gas chromatography-ion mobility spectrometry (HS-GC-IMS). Sensory and color analyses showed that roasting at 140 °C yielded a desirable roasted macadamia product, exhibiting a rich balsam flavor, creamy aroma, and uniform, harmonious faint yellow color. HS-SPME-GC–MS and HS-GC-IMS identified 107 volatile organic compounds (VOCs). Aldehydes, pyrazines, and furans increased with increasing roasting temperature, and these compounds were key contributors to the nutty aroma. Lipid oxidation dominated flavor formation during low-temperature roasting, while Strecker degradation prevailed at high temperatures. Among the VOCs, 23 with relative odor activity values (ROAV) of ≥1 contributed significantly to the overall aroma of roasted SMK. Furthermore, HS-SPME-GC–MS and HS-GC-IMS identified 10 and 16 key VOCs, respectively, including 2-methylpyrazine, 2,5-dimethylpyrazine, 2-ethylpyrazine, nonanal, and propanal. Interestingly, ethanol content showed a significant negative correlation ( p < 0.05) with “bitter,” and “burnt”, as well as with a*, b*, and c, whereas most pyrazine compounds exhibited positive correlations with these sensory attributes ( p < 0.05). Altogether, the findings of this study present roasting as an effective approach for enhancing macadamia nut aroma and provide valuable insights for flavor control in nut products.
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Journal of Cleaner Production
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2026
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IF 10.7
Shichang Zhang,Zheng Qin,Zihang Yi,Weiping Liu,Lifeng Chen,Mohammed F. Hamza,Yuezhou Wei,Jie Yu,Shunyan Ning
Effective elimination of uranium (VI) from wastewater is critical to environmental remediation. Herein, a novel polyphosphonic acid-based ion exchanger PDVA/SiO 2 with spatially symmetric structure was designed and fabricated, and its adsorption behavior towards uranium in pH 4 solution was investigated at both mg/L and μg/L concentration levels using batch and column experiments respectively. The adsorbent could rapidly recognize and complex with uranium and reach adsorption equilibrium within 5 min, with the adsorption efficiencies of uranium in pure water, tap water, lake water and seawater were about 99.9%, 98.7%, 96.5% and 71.5% respectively. Uranium could be consistently and efficiently removed using a column separation device, with the concentrations in the purified solution less than 30 μg/L. The adsorption mechanism was dominated by ion exchange between UO 2 2+ and H + (in P–OH). Density functional theory (DFT) calculations demonstrated that the complex formed by the phosphate group with bi-deprotonated binding to UO 2 2+ possessed higher stability, and the binding process was accompanied by charge transfer and energy reduction.
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Nature Sustainability
·
2026
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IF 32.1
Jin Xianchun,Lei Lin,Du Jinyan,Wang Fuqiang,Long Zhihe,He Yongping,Xing Lili,Zhao Xiaochong,Xue Xinyu
Uranium (U) is essential for the nuclear power industry and plays an important role in decarbonizing the energy supply. However, concern regarding the sustainability of U supply is growing, as conventional U ore reserves are scarce and common mining practices have a notable environmental footprint. Exploring alternative U sources and developing sustainable extraction methods are therefore desired. Here we show a spontaneous U extraction strategy based on droplet falling. Specifically, naturally falling salt-lake water droplets interact with a film of aluminium–fluorinated ethylene propylene–chitosan coated on carbon felt, converting mechanical energy into electricity and driving an in situ electrochemical process for spontaneous U extraction. Electrons released at the solid–liquid interface on a superhydrophobic fluorinated ethylene propylene surface reduce U(VI) adsorbed by chitosan to U(IV), ultimately forming U(VI) precipitates. Field experiments conducted in real salt-lake environments with high salinity confirm the scalability and robustness of droplet U extraction, yielding magnesium uranate (MgU 2 O 7 ) and sodium polyuranate (Na 2 U 7 O 22 ) as the main products. A multistep device reduces the U concentration of salt-lake water from 173 μg l −1 to 34 μg l −1 (extraction efficiency of 80.3%) with minimal extraction of co-existing ions. Overall, this work offers a viable pathway to sustainable U resource extraction.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Xiaofeng Liu,Ruiji Wang,Fayou Tian,Hao Ren,Jinglin Wang,Yan Lin,Zhongtao Li,Mingbo Wu
Development of electrocatalytic reduction of carbonyl compounds for carbon‑carbon (C C) coupling represents an effective pathway to achieve sustainable synthesis of multi‑carbon chemicals. The hydrogen evolution reaction (HER) is considered the most significant competitive process, which could be suppressed by weakening the adsorption of protons on interface or by making protons in the electrolyte inactive through the use of certain additives. However, increasing the coverage of protons and carbonyl molecules are necessary to facilitate the generation of hydrogenation intermediates during C C coupling. To reconcile this contradiction, a Ni-based catalyst for electrocatalytic coupling of formaldehyde has been developed, decorated with phosphate groups around Ni sits. The following enhancement could be achieved: 1) Ni sites enhance the adsorption of formaldehyde on catalyst surface and promote their electroreduction; 2) Phosphate groups near the Ni sites can act as protons affinity sites to prevent their self-coupling. As the result, the adsorbed HCHO and hydrogen can be balanced to facile the formation of intermediate *CH 2 OH during C C coupling. Consequently, the PD-Ni/C@CP catalyst exhibits outstanding performance in the continuous preparation of ethylene glycol, with a production rate of 22 mmol/(L·min) and a Faradaic efficiency exceeding 90%, highlighting its potential for the efficient and sustainable synthesis of other high-value chemicals.
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TALANTA
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2026
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IF 6.7
Hui-Shuang Li,Na-Na Ran,Hong-Wei Li,Yuqing Wu
Developing robust methods to discriminate methanol from ethanol is critical for industrial safety and quality control. Herein, we report a novel strategy of two-step solvothermal method to synthesize dual-emission carbon dots ( p -PD CDs) from p -phenylenediamine. The p -PD CDs exhibit unique, solvent-dependent fluorescence: in ethanol, they display a dominant blue emission at 445 nm with a weaker red emission at 598 nm; while in methanol, the blue emission is significantly quenched and red-shifted to 465 nm. This distinct solvatochromic response provides a ratiometric luminescent signal ( I 445 /I 598 ) for highly selective methanol detection in ethanol across two linear ranges (1-60 vol% and 60-100 vol%), achieving a detection limit of 0.38 vol%. Comprehensive characterization using transmission electron microscopy (TEM), femtosecond transient absorption (fs-TA), and ultraviolet photoelectron spectroscopy (UPS) revealed that the emission differences originate from methanol-caused aggregation of p -PD CDs. This aggregation is driven by weaker hydrophobic interactions and stronger hydrogen bonding compared to ethanol, leading to aggregation-caused quenching (ACQ) and an accelerated non-radiative decay pathway for the blue emission, as confirmed by time-resolved and transient absorption spectroscopy. The practical utility was successfully demonstrated by accurately quantifying methanol in industrial ethanol and a commercial cleaner with excellent recovery rates (99.5-101.7%), highlighting its significant potential for real-world application.
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Nature Communications
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2026
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IF 18.1
Liu Xiangyun,Chai Youzheng,Gu Yuwei,Li Yongqi,Wang Xiao,Wang Qiancheng,Zhang Gong,Liu Huijuan,Qu Jiuhui
High-salinity mine water generated during membrane concentration of mine water contains structurally stable complex organic matter that resists removal and mineralization by conventional advanced oxidation processes, ultimately producing low-value by-product salts that hinder the resource utilization pathway. Leveraging the ultraviolet sensitivity of inherent chromophore groups and conjugated structures, this study developed an ultraviolet-activated assisted electrochemical process. By harnessing ultraviolet/oxidant synergies, this approach achieves ~89.9% total organic carbon removal, with minimal performance decay over 1000 hours. Combined with ultraviolet-visible spectroscopy, fluorescence excitation-emission-matrix spectroscopy, fourier transform ion cyclotron resonance mass spectrometer, and model contaminant experiments, this study elucidates an ultraviolet activation and radical attack synergistic mechanism driving organic mineralization. The direct integration of purified brine with bipolar membrane electrodialysis successfully produces acid, high-purity alkali (>99%), and reusable water, thereby closing the loop of impurities removal and resource recovery. This integrated system offers a strong strategy for high-value resource recovery and sustainable mine water management.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Wei Huang,Yuqi Wang,Quan Yuan,Yiran Hu,Chunmei Wang,Xiaomin Dou,Jun Liu
Addressing water scarcity and pollution in underdeveloped regions requires safe water production from inferior sources. Solar-driven interfacial evaporation (SDIE) coupled with photocatalysis offers great potential for this challenge. Herein, a dual-functional composite (BTG@MS) was fabricated by immobilizing oxygen vacancy- and Ti(III)-rich black TiO 2 /defective g-C 3 N 4 (BTG) on melamine sponge (MS) hydrogel. The composite broadens light absorption to 300–1200 nm (80.7% average absorption efficiency) and forms a type-II heterojunction, facilitating charge separation and reactive oxygen species (ROS) generation. Benefiting from MS’s hierarchical water transport pathways and BTG’s enhanced solar utilization, BTG@MS exhibits outstanding dual performance under one-sun illumination (1 kW/m 2 ), an evaporation rate of 1.26 kg/(m 2 ·h) (74.3% photothermal efficiency) and 84.5% tylosin (TYL) degradation efficiency. It also shows salt tolerance and effectiveness in purifying four types of water sources, producing clean water meeting WHO standards. This work presents an innovative strategy integrating photothermal evaporation and photocatalysis, promising practical application in tackling the water crisis in underdeveloped regions.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Jian Ao,Lingjun Bu,Kunting Xie,Yangtao Wu,Jiaxin Xiao,Shiqing Zhou
Aggregation of long-chain quaternary ammonium compounds (LC-QACs) into aggregates (e.g., micelles) during material modification often limits their grafting efficiency in porous adsorbents like powdered activated carbon (PAC), thereby constraining performance in anionic pollutant removal. Herein, we report a supramolecular strategy that employs β-cyclodextrin (β-CD) to suppress CTAB aggregation, enabling monomeric diffusion and enhanced CTAB loading within PAC micropores. The resulting β-CD/CTAB–PAC composite achieves a high perchlorate (ClO 4 − ) adsorption capacity of 211 mg g −1 , significantly surpassing the conventional CTAB-modified PAC (87 mg g −1 ), along with remarkable selectivity (distribution coefficient > 10× higher than competing anions), stability (<8% leaching in 10-day immersion), and regenerability (>91% capacity retention over 6 cycles). Fixed-bed column tests validated its practical efficacy, treating >5400 bed volumes of contaminated water (500 μg L −1 ) to below the drinking standard of 70 μg L −1 . Furthermore, density functional theory calculations attribute the high selectivity to the low hydration energy of ClO 4 − . Its sparse hydration shell results in a lower energy penalty for desolvation, enabling a more direct and stronger electrostatic interaction with the quaternary ammonium sites compared to the heavily hydrated competing anions. Overall, this aggregation-suppression approach provides a generalizable route for optimizing LC-QAC-based functionalization of porous materials.
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DYES AND PIGMENTS
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2026
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IF 3.9
Shen Wang,Wenjie Wei,Yaran Wang,Rui Ma,Yunya Wu,Yunxian Yang,Yuxin Zuo,Zhiqi Liu,Pengfei Cheng
Agricultural films have attracted considerable attention in recent years. Herein, four types of organic-inorganic complex red light conversion agents ( W-2L , W-8L , S-8L , H-8L ) were designed, the S-8L conversion agent exhibits an extremely broad ultraviolet absorption range of 200-400 nm. Contact angle (142.7°) tests confirmed its excellent hydrophobic properties, enabling better compatibility with LLDPE substrates. Meanwhile, its outstanding photothermal stability of S-8L was demonstrated by a long red fluorescence lifetime: 478.14 μs, an exceptional fluorescence quantum yield: 76.77 %, a high initial decomposition temperature and an extended ultraviolet aging resistance period. Furthermore, the S-8L1 conversion film was utilized to assist in the cultivation of Chlorella cells, demonstrating its excellent UV-blocking and red-light conversion capabilities, significantly increasing both biomass and chlorophyll content. This work proposed a potential way to develop highly efficient light conversion agents by regulating the inorganic-organic functional groups.
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JOURNAL OF HAZARDOUS MATERIALS
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2026
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IF 10.6
Xiao Li,Longjie Cheng,Sen Lu,Yuheng Chen,Xiaoyu Tan,Bin Xu,Baiyang Chen
Ammonia (NH 4 + ) and chloramines often coexist in disinfected water, and accurate determination of their concentrations is important in understanding the status of treatment process. However, their measurements are prone to interference from each other and many operational variables. To select proper approaches, we assessed several representative methods commonly used for measuring NH 4 + , monochloramine (NH 2 Cl), and dichloramine (NHCl 2 ) in water dosed with varying molar ratios of free chlorine (FC) to NH 4 + (Cl 2 :N). Results indicate some fundamental issues that were overlooked before. For example, neither Nessler’s reagent method nor ion chromatography (IC) can analyze NH 4 + reliably when NH 2 Cl was present, because the reaction NH 4 + + OCl - ⇌ NH 2 Cl + H 2 O is reversible and whenever NH 4 + was depleted by its reaction with Nessler’s reagent, which is a rapid and reversible process, NH 2 Cl immediately reverts to NH 4 + . For the same reason, quantifying FC using N, N-diethyl-p-phenylenediamine (DPD) reagent was also problematic, because NH 2 Cl spontaneously converts into FC whenever FC was consumed by its reaction with DPD reagent, which is also rapid and irreversible. Moreover, copresent NHCl 2 was able to interfere with the analysis of NH 2 Cl by the Indophenol reagent method, because NHCl 2 can partially become NH 2 Cl under strongly alkaline condition, which is required for the Indophenol method. To address these issues, we propose to estimate NH 4 + as the difference between total negative three valent inorganic nitrogen (TIN(-3)) and chloramines. Liquid chromatography (LC) appears to be a suitable method for chloramine analysis because it is derivatization-free and exhibits strong resistance to interferences, although its minimum detection limits (MDLs) could be further optimized. The proposed methods demonstrated superior reasonableness over conventional methods in both synthetic and real samples, and agreed better with the theoretical estimations. These methods might help not only reveal hidden information but also rectify misleading information in the ammoniacal chlorination system in the future.
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Environmental Science-Processes & Impacts
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2026
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IF 4.2
R. Silvana Cortés-Lagunes,Andrea-Lorena Garduño-Jiménez,Wenshi Bao,Juan Carlos Durán-Álvarez,Felicity C. T. Elder,Joshua Greenwood,John H. Nightingale,Fan Zhang,Laura J. Carter
Antibiotics are prevalent environmental pollutants with documented plant uptake and effects. Germination and seedling emergence are critical stages of plant development, making toxicity tests valuable for assessing the terrestrial risk. This study aims to address the need to understand species and antibiotic-dependent effects of 10 antibiotics across 23 plant species, including non-cultivated and geographically diverse species, through a Tier I phytotoxicity screening in which all antibiotics were tested at a single nominal concentration of 1 mg L−1, an upper-bound environmentally relevant scenario. Results revealed that antibiotic toxicity is highly species and antibiotic-dependent, highlighting the need to evaluate effects on under-studied species. Some global trends were observed; fluoroquinolones (ciprofloxacin, enrofloxacin, ofloxacin) stimulated germination and root growth in legumes and grasses, while black knapweed (Centaurea nigra) consistently exhibits germination reductions (30–53%) and root growth inhibition under all antibiotic exposures. Florfenicol exposure decreased root length and biomass in Chinese cabbage (Brassica rapa subs. Pekinensis) by nearly 100%, contrasting with stimulation observed in rice (Oryza sativa). The importance of assessing sublethal effects, as root and biomass changes, in addition to germination, for a more comprehensive phytotoxicity assessment is demonstrated. Standardized test conditions may overlook species requiring specific germination conditions. Sorption of antibiotics to filter paper affected exposure concentrations, emphasizing the importance of chemical quantification before and after tests. This study highlights the need for adaptive phytotoxicity protocols, careful experimental design to obtain statistically significant results, and inclusion of non-cultivated species as bioindicators to better assess antibiotic risks to terrestrial plants.
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Nanoscale
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2026
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IF 5.2
Haozhou Wang,Ming Zhao,Fu Zhao,Weixiang Shang,Hongxia Li,Ran Zhao,Peiliang Guo,Jinxiao Bao
This study successfully synthesized a series of 15Ce–xTi/CG catalysts with different TiO2 loading levels by integrating hydrothermal synthesis, impregnation techniques, and subsequent microwave sintering. To comprehensively evaluate the catalytic activity, microstructure, surface properties, and reaction mechanisms of the catalysts, a range of advanced techniques was employed, including NH3-SCR testing, XRD, XPS, SEM, BET, NH3-TPD, H2-TPR, and in situ DRIFTs. The experimental findings revealed that the incorporation of TiO2 significantly enhanced both the structural integrity and functional performance of the catalysts. Specifically, TiO2 facilitated stronger interactions between Ce and Ti, increased the Ce3+/(Ce3+ + Ce4+) ratio, enriched the surface acidic sites, and boosted the concentration of chemically adsorbed oxygen species. Among all the catalysts, 15Ce–6Ti/CG demonstrated superior NO conversion efficiency (exceeding 92% at 300 °C) and maintained high activity across an extensive temperature range of 250–400 °C, while exhibiting remarkable resistance to SO2 and H2O poisoning. In situ DRIFTs experiments further corroborated the coexistence of both Eley–Rideal and Langmuir–Hinshelwood mechanisms, indicating that the catalytic process can proceed via multiple pathways. These results highlight the synergistic effects between Ce and Ti species, as well as the structural advantages of coal gangue as a sustainable support material, providing critical insights for the development of high-performance, environmentally friendly NH3-SCR catalysts.
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