APPLIED SURFACE SCIENCE
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2026
·
IF 6.6
Yuhuan Wu,Chengwen Feng,Yuyao Peng,Lu Liang,Qingqing Jiang,Xujing Guo
An activated carbon loaded Fe–Co nanometer material (AC/Fe–Co) was synthesized for catalytic degradation of coking wastewater. Synchronous fluorescence (SFS), Fourier transform infrared spectroscopy (FTIR) combined with two-dimensional correlation spectroscopy (2D-COS) were used to reveal the degradation of fluorescent components in coking wastewater dissolved organic matter (DOM). The results showed that nano-AC/Fe–Co catalyst can degrade coking wastewater in a broad range of pH (3–11). Total organic carbon (TOC) removal rate can reach 85.46%, and more than 86.00% of fluorescent components in DOM can be removed by nano-AC/Fe–Co catalyst. The result of 2D-SFS-COS indicated that the change sequence of these components was in the following order: 490, 400, 335, 325, 365, 380, 430, 273, 285, and 265 nm, indicating that humic-like at long wavelength (e.g. 490 nm and 400 nm) can be degraded preferentially, followed by fulvic-like (e.g. 335 nm, 325 nm, 365 nm, and 380 nm), humic-like (430 nm) and protein-like substances. Meanwhile, the preferential sequence of functional groups was in the following order: 1700–1900, 1548, 1080, 1214, 1010, 1652, 1140, and 1365 cm −1 . The result of moving window 2D-COS (MW2D-COS) showed that protein-, fulvic- and humic-like substances can also be removed within 0 to 30 min, which have occurred the transition at about 20 min. TOC removal rate by nano-AC/Fe–Co catalyst can reach more than 60.00% after three times reuse, suggested an excellent repeatability and stability. Herein, spectroscopic techniques in combination with 2D-COS can be used as feasible approaches to reveal the catalytic degradation characteristics of DOM in actual coking wastewater.
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FOOD CHEMISTRY
·
2026
·
IF 10.4
Weiwei Wu,Yanming Tuo,Zhihui Wang,Na Chen,Yuxue Jiang,Chuanjiu Wu,Yongquan Xu,Wen Zeng,Weijiang Sun
Tea flowers and seeds, non-leaf organs of Camellia sinensis , are often discarded, leading to inefficient resource utilization. This study evaluated the potential of tea flowers and seeds by preparing white teas from fresh leaves (WT), flowers (WTF), and seeds (WTS) of Camellia sinensis cv. Fuding Dabaicha. Sensory evaluation, targeted metabolomics, and molecular simulations were used to investigate taste components and their impact on pleasantness. WTF exhibited the highest pleasantness score (6.60), followed by WTS (6.36) and WT (6.10). Four sugars— d -fructose, glucose, D-galactose, and D-xylose—synergistically enhanced pleasantness, with a dose-dependent increase, especially d -fructose. Molecular simulations showed these sugars formed a stable binding network with the CHRM1 receptor (−60.04 kcal/mol), with d -fructose as the key contributor. Alanine scanning identified ARG123 as a critical binding residue. This study provides support for the high-value utilization of tea flowers and seeds and offers insights into enhancing the pleasantness of tea beverages.
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Journal of Water Process Engineering
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2026
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IF 6.6
Jianing Ge,Zichen Jia,Jingyi Zhang,Jinxu Zhang,Wencan Zhang,Wei Jin,Hailong Yin
As emerging contaminants in urban wastewater systems, the comprehensive attenuation mechanisms of antibiotics within sewer networks remain underexplored. This work systematically investigated the in-sewer attenuation mechanisms and kinetics of selected antibiotics (sulfamethoxazole, ofloxacin, roxithromycin, and azithromycin) through laboratory experiments simulating a coupled wastewater-biofilm-sediment sewer environment. By isolating key processes of hydrolysis, sorption-partitioning, and biodegradation, process-specific attenuation rates under varying water temperatures (15 and 25 °C), pH levels (7 and 9), and initial antibiotics concentrations (0.1, 0.2, and 0.5 μg/L) were determined. Biodegradation was the dominant attenuation with rates ranging from 2.67 × 10 −3 to 13.3 × 10 −3 h −1 for the target antibiotics under experimental conditions. Antibiotic concentration was found to be the primary factor influencing biodegradation, exhibiting a non-monotonic and compound-dependent response, while biodegradation also increased with rising temperature. For hydrolysis, elevated temperatures and alkaline conditions accelerated antibiotic attenuation, with rates varying from 0 to 6.09 × 10 −3 h −1 . Antibiotics sorbed to sediments were reduced under higher pH and temperature conditions, with equilibrium sorption-partitioning coefficients of 0.03–2.35 L/kg. Sorption-partitioning affected overall antibiotic attenuation by reducing the aqueous-phase concentration available for biodegradation and hydrolysis. Overall, this study highlights the vital role of urban sewer networks as pretreatment reactors for antibiotics prior to their entry into wastewater treatment plants, and also provides kinetic attenuation rates reference for developing sewer water quality model to quantitatively assess the contribution of urban sewer systems to mitigating aquatic antibiotic risks.
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APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Ruoning Liu,Xinggen Yuan,Wenming Lu,Yunfei He,Shaoyun Shan,Jing Xu,Tianding Hu
Developing advanced photothermal effect photocatalysts to maximize solar utilization receives increasing attentions in photocatalytic H 2 production. Herein, a Ni-doped Zn 0.7 Cd 0.3 S (Ni-ZCS-20) integrating photothermal material and photocatalyst was constructed via simple one-step hydrothermal method. Successful incorporation of Ni into Zn 0.7 Cd 0.3 S was confirmed by various characterization techniques including XRD, XPS, SEM and TEM. Under photothermal-assisted condition, the Ni-ZCS-20 offered a superfast H 2 generation rate, reaching as high as 183 mmol/g·h, which exhibited enormous advantages over existing photocatalysts. Detailed mechanism explorations verified that such a high H 2 generation rate of Ni-ZCS-20 could be attributed to the lowed H 2 generation overpotential, broadened light absorption region, and promoted photogenerated carrier separation originating from the Ni doping. In addition, the doped Ni partly substituted the Zn in Ni-ZCS-20, providing an extra channel for photogenerated electrons and efficiently hindering the recombination of electron-hole pairs. Density functional theory (DFT) calculations demonstrated that Ni incorporation into ZCS effectively tailored its electronic structure, enhanced surface electron-supply capability, and optimized hydrogen adsorption, thereby leading to superior catalytic performance of Ni-ZCS toward HER. This finding provides valuable guidance for constructing photothermal effect materials to exploit full spectrum solar in photocatalytic H 2 evolution.
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Journal of Water Process Engineering
·
2026
·
IF 6.6
Yanhua Liu,Yunpeng Luo,Geoffrey I.N. Waterhouse,Zhiming Zhang,Liangmin Yu
The rational design of charge-transfer interfaces is essential for high-performance photoelectrocatalytic (PEC) wastewater remediation. Herein, a novel ternary n-n-p heterojunction electrode, titanium dioxide/NH 2 -MIL-125(titanium)/polyaniline (TiO 2 /Ti-MOF/PANI), was successfully fabricated via a two-step hydrothermal and chemical polymerization strategy, followed by electrophoretic deposition. The optimized electrode exhibited a superior Rhodamine B (RhB) degradation efficiency of 96.1% and a total organic carbon mineralization rate of 67.19% within 70 min under visible light with a −0.8 V bias, significantly outperforming the individual photocatalytic and electrocatalytic processes. The superior performance originates from the synergistic integration of the ternary components. Ti-MOF and PANI broaden the visible-light response, promoting the generation of photogenerated electron-hole pairs under visible-light irradiation. Within this heterostructure, PANI functions as a narrow-band-gap sensitizer and p-type hole-transport layer, while n-type Ti-MOF provides a continuous pathway for rapid interfacial charge transfer. Meanwhile, n-type TiO 2 serves as a robust electron-transport backbone and offers stable surface active sites for subsequent redox reactions. The resulting n-n-p heterojunction establishes an internal electric field that, in conjunction with the applied negative bias, accelerates charge-carrier migration and accumulation at the electrode surface, thereby facilitating RhB degradation. Furthermore, PANI acts as an efficient conductive bridge, shortening electron-transport distances and reducing interfacial resistance. Mechanistic insights from radical trapping and electron spin resonance analysis confirm that •O 2 − and •OH are the predominant reactive species driving the oxidative cleavage of the xanthene chromophore. Overall, this work provides valuable design principles for multi-component PEC electrodes, offering insights into efficient environmental remediation.
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JOURNAL OF CHROMATOGRAPHY A
·
2026
·
IF 4
Mingjie Guo,Weihong Xie,Suling Zhang,Xiaofei Li,Jianwei Zhang,Zhongshi Xu,Ying pan,Dong zhang,Lulu Xu,Ting Lü,Linlin Qiu
Etomidate and its analogs can produce euphoria and addiction, and their recent abuse has led to an increasing number of poisoning and fatal cases. Thus, they are classified as controlled psychotropic drugs. This work proposed small-sized wood aerogel-supported zirconium metal-organic framework (UiO-66) particles for the extraction of trace etomidate and its analogs from urine and e-cigarette samples. Owing to the removal of lignin and hemicellulose, the delignified wood aerogel exhibited enhanced internal pore structures and exposed functional groups, which facilitated the immobilization of more UiO-66 crystals and achieved a high loading efficiency of 61.3 %. The lightweight UiO-66/wood aerogel composite enables facile separation, avoiding UiO-66 powder leakage while retaining its adsorption capacity. The composite was mechanically stable and kept commendable reusability over nine consecutive cycles. Benefiting from its high specific surface area and multiple chemical interactions with target drugs, the extraction method achieved enrichment factors of 22.9–30.0. Key factors influencing extraction—including solution pH, extraction time, the type and volume of desorption solvent, and desorption time—were investigated. Under the optimal conditions, the UiO-66/wood aerogel-based micro-solid phase extraction coupled with GC–MS method showed wide linear ranges and good precision (1.1%–3.2% for intra-day; 3.4%–5.1% for inter-day). The limits of detection and quantification were in the range of 0.02–0.04 μg/L and 0.05–0.1 μg/L, respectively. The recoveries for the urine and e-cigarette oil samples ranged from 86.2%–110.2% and 80.1%–107.9%, respectively. This method is eco-friendly, simple, and sensitive for the determination of new psychotropic drugs in clinical and forensic applications.
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CHINESE JOURNAL OF CATALYSIS
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2026
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IF 17.2
Fuhao Yin,Qianyu Zhang,Mao Xu,Shupeng Wei,Yi Li,Pengzuo Chen,Yanying Zhao,Benxia Li
Achieving efficient photocatalytic CO 2 reduction using H 2 O as a hydrogen source requires the synergistic optimization of both charge and proton transfer between CO 2 reduction and H 2 O oxidation half-reactions. However, conventional studies mostly focused on enhancing these half-reactions independently, overlooking the intrinsic interdependence between them. Herein, this work develops a photothermal catalyst (denoted as Pd 1+c /3DOM-In 2 O 3 ) through engineering synergistic Pd single atoms (Pd 1 ) and Pd clusters (Pd c ) in three-dimensional ordered macroporous (3DOM) In 2 O 3 framework. The mechanistic study reveals that the coexistence of Pd single atoms and clusters not only offers synergistic active sites to promote the reaction of CO 2 and H 2 O, but also substantially improves the separation and transfer efficiencies of photogenerated electrons and holes. The Pd clusters facilitate H 2 O dissociation to ensure an adequate supply of active hydrogen species as well as synergistically enhance the adsorption and activation of CO 2 at Pd single-atom sites. Furthermore, the enhanced photoabsorption in visible and near-infrared regions, attributed to the localized surface plasmon resonance of Pd clusters, leads to a significant increase in catalyst temperature under simulated solar irradiation. The integration of photocatalysis with the photothermal effect affords an intensified driving force for the selective conversion of CO 2 and H 2 O into CO, thereby accelerating the reaction kinetics of the overall photocatalytic CO 2 reduction process. As a result, the Pd 1+c /3DOM-In 2 O 3 catalyst exhibits excellent performance for solar-driven CO 2 reduction with H 2 O vapor, achieving a remarkable CO production rate of 192.52 μmol g –1 h –1 , which is 19.8-fold and 12.2-fold higher than those of pure 3DOM-In 2 O 3 and Pd 1 /3DOM-In 2 O 3 , respectively. This study provides valuable insights into the synergistic effect of metal single atoms and clusters toward both efficient photocatalysis and photothermal effect for solar-driven CO 2 reduction.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 2
·121676
·
IF 7.5
Xiaonan Hao,Ying Xue,Yue Wu,Shulin Sun
The inherent hydrophobicity of polyvinylidene fluoride (PVDF) separation membranes severely limits their flux and anti-fouling performance, and traditional membrane materials struggle to simultaneously achieve efficient separation and degradation of pollutants. This study innovatively proposes a synergistic modification strategy combining Chlorinated 1-butyl-3-vinylimidazole (IL) grafting with amino-functionalized zeolitic imidazolate framework-8 (NH 2 -ZIF-8) doping. This approach constructs a multifunctional composite membrane integrating efficient separation, adsorption, and piezo-photocatalytic degradation. The prepared PVDF-g-IL/NH 2 -ZIF-8 membrane demonstrates outstanding overall performance. Under combined ultrasound and ultraviolet excitation, it achieves a methylene blue degradation efficiency of 80.5 %, showcasing its capability for in-situ pollutant degradation during the separation process. Furthermore, the membrane exhibits a pure water flux as high as 685.6 L m −2 h −1 , which is approximately seven times that of the pristine PVDF membrane. It also maintains dye rejection rates exceeding 93 % for various dyes, and possesses a high adsorption capacity (>7.0 mg/g) along with excellent cycling stability due to the flux recovery rate above 80 %. This study provides new insights for developing water treatment membranes combined efficient separation with in situ degradation functionality.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Weiguang Miao,Kai Zhu,Xiangfen Yan,Fangfang Chang,Qing Zhang,Ge Li,Zhengyu Bai
Copper-based catalysts have emerged as promising candidates for the electrochemical nitrate reduction reaction (NO 3 RR) to produce ammonia (NH 3 ). Achieving selective NH 3 synthesis with high Faradaic efficiency and productivity remains a significant challenge. Herein, we investigate the manipulation of dynamic Cu 0 /Cu + /Cu 2+ multiphase heterointerfaces using an electrochemical reconstruction strategy on a carbon-coated CuO/Cu 2 O@C catalyst during NO 3 RR. An intriguing catalytic relationship is revealed by electrochemical analysis that the formation of the dynamic Cu 0 /Cu + /Cu 2+ interface as superior active sites enhances the selective conversion of NO 3 − to NH 3 . The maximum NH 3 Faradaic efficiency (95.5%) and productivity (13.5 mg·h −1 ·mg cat −1 ) are achieved on multiphase heterointerfaces under pH-neutral conditions. As revealed by in situ structural analysis and density functional theory (DFT) calculations, multiphase heterointerfaces facilitate water activation, boost hydrogen supply, and lower the energy barrier for the rate-determining step of *NO-to-*N, thereby promoting the selectivity and Faradaic efficiency of NH 3 . This discovery paves the way for novel design of Copper-based catalysts, featuring improved activity and selectivity to promote NO 3 RR.
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FOOD RESEARCH INTERNATIONAL
·
2026
·
IF 8.8
Zhenwei Wang,Che Shen,Di Liu,Qi Jin,Hongmei Fang,Xingyong Chen,Xingguang Chen,Kezhou Cai,Baocai Xu
High salt intake is a significant risk factor for cardiovascular diseases such as hypertension, while conventional salt-reduction methods in soup preparation often lead to flavor deterioration. To address this issue, this study systematically investigated the comprehensive effects of low-voltage electrostatic field (LVEF)-assisted stewing on salt reduction, saltiness enhancement, and overall quality improvement in chicken soup. Electronic tongue analysis revealed that the saltiness response of LVEF-treated chicken soup (6H-EF group) increased by 5.3% compared to the control. Quantitative descriptive analysis further confirmed that LVEF treatment enhanced the perceived intensity of both saltiness and umami. Validation experiments demonstrated that with a 15% reduction in sodium chloride, the LVEF-assisted low-salt chicken soup showed no significant changes in colloidal stability or overall sensory characteristics. Under equivalent stewing durations, LVEF treatment increased protein content by up to 12.91%, while the proportions of umami- and sweet-tasting free amino acids were elevated by up to 15.5% and 23.2%, respectively. Headspace solid-phase microextraction coupled with gas chromatography–mass spectrometry (HS-SPME–GC–MS) analysis indicated that samples treated with LVEF exhibited a significant increase in both the diversity and relative content of volatile organic compounds (VOCs). This demonstrates that the technology effectively preserves and further enriches the overall flavor profile of the soup matrix. The present study provides systematic scientific evidence supporting the industrial application of LVEF technology in the production of health-oriented soup products.
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FOOD RESEARCH INTERNATIONAL
·
2026
·
IF 8.8
Fedrick C. Mgomi,Chunlei Lu,Anqi Tang,Shu Xu,Fei Chen,Lei Yuan,Zhen-quan Yang
The survival of probiotics during transit through the gastrointestinal tract (GIT) remains a significant challenge, limiting their in vivo functional efficacy. Microorganisms often resist adverse conditions by forming biofilms. Leveraging this property, the current study introduces a novel biofilm-inspired encapsulation approach using single- and multilayer-coated sodium alginate gel beads (SAGBs) to promote in situ biofilm formation by Lacticaseibacillus paracasei NN4–1. Comparative analyses were conducted to assess bacterial viability in SAGBs, planktonic cells, and biofilm cells under simulated GIT conditions. In vitro studies showed enhanced resistance in SAGBs, with a survival rate of 81.48% compared to unencapsulated cells. Additionally, biofilm encapsulation increased biochemical production, yielding average protein and polysaccharide concentrations of 0.633 mg/mL and 1.056 mg/mL, respectively. The scanning electron microscope revealed clusters of bacterial colonization inside the SAGBs. Whole-genome sequencing revealed multiple genes associated with biofilm formation, stress tolerance, adhesion, acid, and bile salt resistance. Multilayer of SAGBs reduced bacterial leakage by 52.52%, slowed small-molecule diffusion, and slightly improved textural properties without compromising bacterial metabolic activity or growth. Furthermore, SAGBs exhibited markedly higher survival (99.43%) than planktonic (76.3%) and biofilm cells (77.5%) after 21 days of refrigerated storage in milk. This approach offers promising applications in designing next-generation functional foods and targeted probiotic delivery systems, warranting higher viability of probiotics under adverse conditions of the GIT.
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Food Chemistry-X
·
2026
·
IF 9.2
Ying Liu,Linlin Yu,Shuxiang Yan,Xiaowei Fang,Tenggao Zhu,Huanwen Chen,Dong Wu
Metabolic changes during the ripening of wolfberry ( Lycium barbarum L.) fruits reflect their quality and pharmacological properties. To decipher the metabolic evolution underlying this physiological process, a systematic analysis of wolfberry fruits at different ripening stages (7–35 days after anthesis) was conducted by theta-nano-extractive electrospray ionization mass spectrometry. Multivariate analysis effectively discriminated the various stages and identified proline, γ-aminobutyric acid, arginine, and N 1 -caffeoyl- N 10 -dihydrocaffeoyl spermidine as potential differential metabolites. Polyamine and flavonoid metabolism were significantly activated during the early ripening stages, leading to the rapid accumulation of antioxidant components such as spermidine, rutin, and chlorogenic acid. In the late ripening stages, amino acid metabolism was markedly enhanced, resulting in a substantial increase in betaine, serine, and threonine. This study elucidates the key stages and metabolic foundation of quality formation in wolfberry fruits at the metabolomic level, providing a theoretical basis for determining the optimal harvest time and regulating nutritional quality.
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危险品化学品经营许可证（带存储）