CATALYSIS LETTERS
·
2025
·Vol. 155
·期 11
·1-18
·
IF 2.4
Song Zhi,Han Dongxu,Liu Boxia,Jiao Hongqiao,Wang Lin,Liu Jialu,Zhang Xiayan,Huang Yeqiong,Xing Chuhan,Zhang Jing
Titanium dioxide (TiO 2 ) is widely regarded as one of the most promising semiconductor materials for photocatalysis. In this study, through defect engineering, the strong interaction between F − ions and surface Ti 4+ is utilized to induce the generation of oxygen defects, thereby achieving selective etching and exposure of the high-energy {101} crystal plane. At the same time, the coordination effect of Ni on the surface metal active site not only promotes the transition of the forbidden band energy level, but also effectively narrows the band gap of TiO 2 . Through systematic characterization, the successful coordination of Ni and the enhancement of the high-energy state crystal plane stability were confirmed. BET specific surface area test shows that the large specific surface area of Ni-TiO 2 samples provides more surface active sites for photocatalytic reactions. Photoelectric performance tests further show that the introduction of double defect engineering significantly improves the separation and migration efficiency of TiO 2 photogenerated carriers. Degradation experiments showed that Ni-coordinated TiO 2 could efficiently degrade phenol pollutants within 60 min, exhibiting excellent photocatalytic activity. Capture experiments further confirmed that the coupling between non-radical 1 O 2 and free radical •OH is the main active species in photocatalytic degradation. The synergistic effect of the generation of high-energy state facets and Ni coordination significantly improves the separation and migration of photogenerated carriers, thereby enhancing the photocatalytic performance. This work provides a reliable defect engineering strategy for improving the photocatalytic performance of TiO 2 . Graphical In this study, through defect engineering, the strong interaction between F − ions and surface Ti 4+ is used to induce the generation of oxygen defects, thereby achieving selective etching and exposure of high-energy {101} crystal planes. At the same time, the coordination effect of Ni on the surface metal active sites not only promotes the transition of the forbidden band energy level, but also effectively narrows the band gap of TiO 2 . By carefully designing the photocatalytic process, direct degradation of phenol was achieved under the coupling of non-radicals and free radicals. The improvement in photocatalytic activity is due to the increase in specific surface area, which not only broadens the light absorption capacity but also significantly improves the separation and migration of photogenerated carriers. The capture experiment further verified the efficient catalytic mechanism of the Ni-TiO 2 /phenol system, demonstrating that the synergistic effect of the high-energy {101} crystal plane and the highly active Ni coordination was fully utilized to promote the generation of •OH radicals during the reaction and effectively drive the conversion of oxygen molecules into 1 O 2 through vacancy oxidation. This study not only provides a useful reference for the design of high-efficiency and low-energy photocatalysis, but also provides a new solution for the removal of phenol pollution in coal chemical wastewater.
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Nutrients
·
2025
·Vol. 17
·期 20
·3249
·
IF 5
Ting Xia,Zhenjie Liu,Wenya Ding,Liting Deng,Xinyang Ning,Jianfang Feng
Background/Objectives:Achyranthes bidentata(AB), recognized as a food and traditional Chinese medicine, exhibits notable biological activity. Our previous study showed the hypoglycemic effect ofAchyrantha bidentata polysaccharide(ABP). The properties and digestion process of polysaccharides affect their pharmacological activities. The digestion characteristics of ABP are unclear. In this study, we aimed to explore the characteristics of ABP’s simulated digestion and its prebiotic properties and hypoglycemic effects.Methods: We used simulated digestion methods to investigate the alterations in ABP levels in the process of digestion and fermentation. Animal experiments were used to compare the effects of the prebiotic properties of ABP on normal control (NC) and type 2 diabetes mellitus (T2DM) mice. Then, in order to further verify the hypoglycemic effect of ABP after fermentation (ABPF), α-glucosidase activity and glucose uptake in Caco-2 cells were examined.Results: The results showed that ABP was anti-digestive and mainly degraded by the intestinal flora. Moreover, ABP showed a stronger promoting advantage against beneficial bacteria and inhibited harmful bacteria in the T2DM mice. Compared with NC mice, after ABP treatment, T2DM mice showed a higher increase in levels of short-chain fatty acids (SCFAs). Additionally, the glucose uptake and α-glucosidase activity of Caco-2 cells were significantly decreased after treatment with ABPF.Conclusions: These results underscore the potential of ABP as a prebiotic candidate for gut health promotion and T2DM alleviation.
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Sustainability
·
2025
·Vol. 17
·期 20
·9091
·
IF 3.3
Shiyan Gu,Qi Li,Wei Kou,Zhaonan Sun,Xiaoxia Li,Yitong Wang,Haiqiao Zhao,Peng Gao
The inefficient disposal of corn stover (CS) and the accumulation of magnesite tailings (MMTs) pose dual environmental threats. Although biomass gasification can utilize CS, its inherent drawbacks result in syngas with low heating value and high tar content. Torrefaction pretreatment can effectively improve biomass properties, and the use of steam as a reaction medium can further optimize the product’s pore structure. This study proposes a steam-assisted torrefaction pretreatment to address the inefficient utilization of CS and the disposal challenges of MMTs. The experimental results demonstrated that torrefaction at 300 °C with 30% water content for 60 min significantly improved the raw material’s properties. The optimized CSBC exhibited a well-developed pore structure and achieved a phenol removal rate of 63.4%. The addition of MMTs further enhanced the pretreatment effect, increasing the removal rate to 75.5% and confirming the superiority of the CSBC–magnesite composite system. The steam atmosphere improved phenol adsorption by regulating pore structures and surface functional groups, offering a feasible approach for utilizing solid waste resources and developing a new in situ tar control strategy.
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JOURNAL OF NON-CRYSTALLINE SOLIDS
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2025
·
IF 3.5
Jie Zhang,Haishun Liu,Xiang Zhang,Li Ma,Weiming Yang
The metastable energy state and abundant active sites in Fe-based amorphous alloys (FAAs) make them promising catalysts. Surface atomic states may affect the catalytic performance of FAAs as well as the internal long-range disordered atomic structure. This paper investigates how laser surface processing affects the phenol degradation performance of industrial Fe 78 Si 9 B 13 amorphous ribbon. Suitable laser processing obviously improves the phenol degradation performance, and 40 W laser processing leads to the most significantly improved kinetic rate, which reaches 0.82 min −1 , much higher compared to former Fe-based catalysts even with less catalyst dosage; moreover, the degradation rate also maintains over 98 % after 18 cycles. The lower activation energy, the abundant active sites, and more ·OH generation with suitable laser processing, are responsible for this degradation improvement. This study reports the improved phenol degradation performance of Fe-based amorphous ribbon by laser processing and further discloses related mechanisms, which provides a feasible strategy obtaining efficient and durable FAAs catalysts in improving the quality of phenol-containing wastewater.
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JOURNAL OF CHROMATOGRAPHY A
·
2025
·
IF 4
Minyi Yuan,Zheng Zhao,Ji Wu,Sumin Bian,Yuling Liao,Ying Zhou,Huikai Shao,Zhengjin Jiang,Qiqin Wang
To meet the increasing demand for the separation of complex samples, a novel monolithic stationary phase with hydrophobic and hydrophilic functionalities was developed by using 3-(1-(4-vinylbenzyl)-1H-imidazol-3-ium) propane-1-sulfonate (VBIPS) as monomer, pentaerythritol triacrylate (PETA) as crosslinker. The optimized mixed-mode poly(VBIPS- co -PETA) monolith exhibited good mechanical strength, high permeability (K = 0.23 × 10 -14 m 2 in 100% ACN, 0.23 × 10 -14 m 2 in 100% MeOH, and 0.11 × 10 -14 m 2 in 100% H 2 O), and multiple interaction modes, including hydrophilic, hydrophobic, hydrogen, and electrostatic interactions. The highest column efficiency of 83,330 plates/m was achieved for thiourea at a linear velocity of 0.23 mm/s. Systematic evaluations confirmed strong retention and separation of polar substances (e.g., benzoic acids, nucleoside bases, phenols), primarily due to the sulfobetaine-derived hydrophilicity as well as effective separation of nonpolar substances (e.g., aniline, aryl ketones, polyaromatic hydroxy compounds), facilitated by π-π stacking interactions between analytes and benzene rings within the stationary phase. Overall, this zwitterionic imidazolium sulfonate-functionalized monolith successfully combines hydrophobic and hydrophilic groups in a single continuous bed, enabling efficient separation of both polar and nonpolar analytes under low backpressure. This work enriches the library of mixed-mode stationary phases, and broadens the detection scope for complex sample analysis.
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Asia-Pacific Journal of Chemical Engineering
·
2025
·
IF 1.6
Yi Xiang,Zhen Zhao,Fuyan Gao,Zhenghui Zhao,Hang Li,Eric J. Hu,Ruikun Wang
Direct preparation of coal–water slurry using coal chemical wastewater represents an economical and feasible approach for wastewater resource utilization. Unlike clean water, however, the complex organic components in wastewater may exert adverse effects on slurry properties. To explore the mechanism underlying the influence of organic components in coal chemical wastewater on the adsorption characteristics of additives onto coal surfaces, address the issue of slurry property variations arising from slurry preparation with different wastewaters, and verify the technical and economic feasibility of wastewater-based coal–water slurry preparation, this study integrated isothermal adsorption experiments with molecular dynamics (MD) simulations. With deionized water as the control group, the study systematically analyzed the effects of four typical organic pollutants, namely, quinoline, phenol, acetic acid, and 5-hydroxymethylfurfural (5-HMF), on the “coal-additive” adsorption system, while comparing the economic performance of preparation strategies in the context of coal–water slurry production lines. The results demonstrated that the Langmuir model (with a fitting deviation of < 6%) and Δ G 0 ads (all negative values) confirmed the spontaneous nature of the adsorption process. The order of additive adsorption capacity and system interaction energy was determined as quinoline > deionized water > acetic acid > phenol > 5-HMF, where quinoline promoted adsorption whereas the other three components exhibited inhibitory effects. MD simulations revealed that the interaction between coal and additives in deionized water was primarily dominated by van der Waals forces. Organic components reduced electrostatic repulsion but caused a more significant weakening of van der Waals forces, and monolayer adsorption was identified as the optimal microscopic configuration for additives to exert their functional effects—this conclusion was consistent with analyses of adsorption configuration, molecular density distribution, and mobility. Economic analysis indicated that when comparing the two strategies of “adjusting additive dosage” and “ozone oxidation pretreatment,” and taking into account the environmental benefits of wastewater treatment, coal–water slurry preparation using coal chemical wastewater could achieve significant positive benefits under appropriate strategies compared with the conventional method, thereby realizing a win-win scenario for both wastewater treatment and economic gains. This study clarifies the regulatory mechanism of organic components in wastewater on additive adsorption from both macro- and micro-dimensional perspectives, confirms the technical and economic feasibility of coal chemical wastewater-based coal–water slurry preparation, and provides crucial support for advancing the coordinated development of industrial wastewater resource utilization and clean production.
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APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Hongyun Ren,Xia Qin,Xujie Lan,Xingwei Tao,Shan Wang,Mai Wang,Xiao Guo
This study explores the intrinsic photocatalytic activity of viscose-based activated carbon fibers (ACFs) and their synergistic adsorption-photocatalysis mechanism under visible light. Two commercial ACFs were pretreated, with one further oxidized using nitric acid. Tetracycline (TC) served as the model pollutant. Results revealed that adsorption capacity was positively correlated with defect density, while photocatalytic performance depended on the sp 2 -hybridized carbon content. After 90 min, TC removal efficiencies for adsorption and combined adsorption-photocatalysis were 17.6 %/91.3 % and 7.3 %/85.5 %, respectively. Excellent mineralization was also achieved, with COD/TOC removal rates of 85.1 %/85.4 % and 73.4 %/75 %. ACFs maintained high TC degradation over a wide pH range (3–9), and the superior sample achieved 99.4 % TC removal within 20 min at an aeration rate of 1.0 L/min. OH and O 2 − were identified as the dominant reactive oxygen species. The materials exhibited excellent regeneration capability through high-temperature calcination. Practical application tests confirmed their effectiveness under sunlight and against a range of organic pollutants. These results highlight the potential of pristine viscose-based ACFs as low-cost, sustainable materials for advanced wastewater treatment.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2025
·
IF 9
Hantao Du,Yucheng Liu,Hongtao Liu,Lizhang Wang
Chlorine-mediated electrochemical advanced oxidation technology has significant potential for pollutant removal. However, the oxygen evolution reaction (OER), which has a similar onset potential to the chlorine evolution reaction (CER), often interferes with chlorine production, limiting the development of high performance CER electrodes. This study presents a novel, highly stable multilayer SnRuO x /TiNTs anode. Using a four-quadrant model-based evaluation system for chlorination and oxygen evolution activities, the Ru and Sn ratio was optimised to enhance the performance of the SnRuO x /TiNTs anode. Electrochemical tests showed that the Sn 1 Ru 3 O x /TiNTs electrode exhibited excellent CER activity with weak OER activity, achieving a CER selectivity of up to 90.07 %. This effectively addressed the issue of OER interference with CER. Experiments showed that under low-chloride (500 mg/L) conditions, Sn 1 Ru 3 O x /TiNTs achieved 100 % ammonium nitrogen removal within 3 h and almost complete phenol degradation within 5 h. Accelerated life tests showed that the Sn 1 Ru 3 O x /TiNTs anode exhibited excellent stability, with an estimated life of up to 2.119 years. Furthermore, DFT calculations demonstrated that the optimized synergistic interaction between Ru and Sn atoms in the Sn 1 Ru 3 O x /TiNTs electrode significantly increases the density of active electronic states, making it an ideal material for the CER. This research provides new insights and strategies for the preparation of high-performance chlorine evolution electrodes.
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APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Yuanjiang Li,Haobo Yuan,Feng Gao,Yu Shi,Haiqin Wei,Xiaodong Wang,Wei Huang
This work focused on improving the pervaporation performance of Pebax® 2533 membranes cast on polytetrafluoroethylene substrates, by incorporating home-made bifunctionalized ZIF-L with amino groups and aromatic rings, to prepare MMMs for dephenolization from the aqueous solution. Amino groups in ZIF-L-NH 2 led to the enhanced interaction between the fillers and the matrix by forming hydrogen bonds, thus aminated fillers dispersed more homogeneously in MMMs than the non-aminated fillers and the MMMs possessed a better interface structure. Aromatic rings in ZIF-L-NH 2 made the membranes more organophilic and brought them a stronger affinity towards phenol. The separation performance of the MMM with 15 wt% fillers and 20 μm thickness surpassed most of the other phenol-selective membranes with the separation factor of 59.79 and the total flux of 1.93 kg/m 2 ·h for 1000 ppm phenol solution at 80 ℃. Notably, the MMMs maintained a good separation performance even when the phenol concentration of the feed solution extended to 18,000 ppm. In a 60 h long-term pervaporation, the MMM was stable. We believe that such MMMs design based on fillers with a ligand rich in aromatic rings and amino groups is a promising approach for high-performance dephenolization membranes.
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POSTHARVEST BIOLOGY AND TECHNOLOGY
·
2025
·
IF 6.8
Kai-Ping Cong,Ting-Ting Li,Cai-E. Wu,Gong-Jian Fan,Dan-Dan Zhou,Xiao-Jing Li,An-Di Suo
This study investigates the effects of Plasma-activated water (PAW) treatment on cell wall polysaccharide metabolism in goji berries during storage. The results indicate that PAW treatment modulates plant hormone levels and reduces the activity of cell wall-degrading enzymes, thereby slowing water loss and the softening process of the fruits. In the PAW-treated group, indoleacetic acid (IAA) and abscisic acid (ABA) levels were significantly lower than those of the control group in the later storage stages, while Gibberellin A 3 (GA 3 ) levels remained higher, suggesting a positive impact on hormone homeostasis. Additionally, PAW treatment effectively inhibited the decline in the molecular weight of water-soluble pectin (WSP) and sodium carbonate-soluble pectin (SCSP), as well as the increase in Polygalacturonase (PG) and β-glucuronidase (β-Glu) activity. Overall, PAW treatment played a beneficial role in delaying cell wall degradation and softening, maintaining structural stability, and thereby enhancing the storage quality and shelf life of goji berries.
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ENVIRONMENTAL SCIENCE & TECHNOLOGY
·
2025
·
IF 11.3
Lu-Jia Shi,Zhao-Hua Wang,Ying-Jie Zhang,Jie-Jie Chen,Wen-Wei Li,Gui-Xiang Huang,Han-Qing Yu
Heterogeneous chemical oxidation for water treatment based on direct electron transfer has attracted great interest due to its low oxidant consumption and selective oxidation capabilities. Under low oxidant dosages (e.g., less than ten times the pollutant concentration), the influence of common inorganic anions in wastewater cannot be ignored. However, the respective impacts of ions on the two substrates (i.e., oxidant and pollutant) have not yet been systematically studied yet. In this work, we reveal that several inorganic anions (e.g., NO3–, Cl–, HCO3–, SO42–, HPO42–), which are commonly present in water and wastewater, have much greater influences on the oxidant than on the pollutant, with notable differences among the different ions. The origin of the ion effects was investigated from the aspects of substrate adsorption-activation and interfacial electron transfer. Experimental and theoretical studies demonstrate that the solution resistance, electrostatic interactions, interfacial bonding, and electronic interactions, as well as the ions’ affinity for water, which correlates with the Hofmeister series, were collectively responsible for the ion effects. From a dual-substrate perspective, this work proposes a research paradigm that not only offers insights into the ion effects in heterogeneous chemical water treatment but also holds implications for the design of catalytic active sites and the optimization of reaction conditions in dual-reactant systems.
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Advanced Healthcare Materials
·
2025
·
IF 9.6
Xirui Long,Yuanyuan He,Ao Wang,Xiao Wang,Ao Zhen,Linxi Wu,Lin Yang,Feng Luo,Jiehua Li,Zhen Li,Hong Tan
Multidrug-resistant (MDR) bacterial infections pose a significant threat to human health, particularly when introduced by surgical contamination, resulting in early-stage implant-related biofilm infections and potential implant failure. Inspired by the structure and function of lysozyme fibers, a biomimetic supramolecular hydrogel is developed that mimics the lysozyme fiber architecture and encapsulates D-tyrosine (D-Tyr), integrating bactericidal and anti-biofilm functions within a self-assembled positively charged nanofibrous network. The peptide backbone with quaternary ammonium salt-modified fibers disrupts bacterial cell membranes through direct contact, thereby damaging structural integrity, causing cytoplasmic leakage and killing bacteria; meanwhile, D-Tyr's effective sustained release inhibits initial bacterial contamination and prevents subsequent biofilm formation. In vivo, experiments demonstrated that the hydrogel significantly accelerated the healing of Methicillin-resistant Staphylococcus aureus (MRSA)-infected skin abscesses and prevented implant-related biofilm infections during the preliminary stages of implantation. By exploiting synergistic bactericidal and anti-biofilm effects, this lysozyme fiber-inspired hydrogel offers a promising strategy to combat MDR bacterial infections and prevent biofilm-related implant complications.
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