GREEN CHEMISTRY
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2026
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IF 10.6
Jia Li,Yan-Hong Tan,Yancheng Hu,Hong-Yan Wang,Jing-Pei Cao
High-energy-density (HED) fuels can enhance the payload and range performance of aircraft, holding strategic importance in the field of air defense. However, conventional petroleum-derived HED fuels face growing challenges related to resource depletion and greenhouse gas emissions. In response to the urgent need for sustainable alternatives, we develop an efficient ring-increasing strategy using natural terpenes as feedstocks to construct polycyclic frameworks suitable for HED fuel applications. The process includes acid-catalyzed ringincreasing alkylation of renewable terpenes with phenols and subsequent hydrodeoxygenation over bifunctional Pd/C and H-Y catalyst system. Benefiting from their strained and polycyclic architectures, the eucalyptus oil-derived biofuel exhibits a density of 0.914 g/mL, combustion heat of 40.1 MJ/L, freezing point below -67 °C and viscosity of 34.5 cSt, while the turpentine oilderived fuel achieves even higher energy density. The high density and good low-temperature fluidity render these fuels as promising sustainable alternatives to conventional petroleum-based HED fuels.
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MARINE POLLUTION BULLETIN
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2026
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IF 4.9
Diyi Liu,Lu Liu,Ping Yin,Yan Tian,Jing Zhang
17β-Estradiol (E2), a typical endocrine-disrupting chemical, is widely detected in various aquatic environments, including rivers, lakes, groundwater, estuaries, and coastal waters, posing significant ecological and health risks. Photodegradation is a key pathway for the transformation and removal of E2 from aquatic systems. This study investigated the effects of dissolved organic matter (DOM) from different sources and common inorganic anions (Cl − and NO 3 − ) on E2 photodegradation under simulated solar irradiation. The results indicated that the excited triplet state of DOM ( 3 DOM*), generated upon light absorption, was the key reactive species driving E2 photodegradation. Among the DOM sources examined, humic acid exhibited the strongest promotive effect on E2 photodegradation. Correlation analysis confirmed that terrestrial humic-like components within seawater DOM were the primary contributors to 3 DOM* formation. Seawater DOM from nearshore areas exhibited higher steady-state concentrations of 3 DOM* owing to greater terrestrial input. Both Cl − and NO 3 − effectively accelerated E2 photodegradation, and the E2 degradation rate increased with their concentrations. In contrast, the coexistence of Cl − , NO 3 − , and DOM inhibited E2 photodegradation. In DOM-dominated systems, the main transformation pathways of E2 involved oxidation and hydrolysis reactions on the phenolic ring. This study elucidates the effects of DOM source and water chemical composition on E2 photodegradation, which is crucial for accurately predicting its environmental fate and ecological risks. Moreover, the findings provide valuable insights into the photochemical transformation of other emerging organic contaminants.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
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IF 19.7
Ziqi Cai,Yangyang Zhang,Yi Liu,Hongyi Zhang,Zhenghua Zhang
An electrocatalytic Cu-GHM system with tunable nanoconfined spaces is constructed. • The electrified system enables 73%–100% degradation of 13 emerging contaminants. • 100 h of continuous operation is demonstrated without loss of structural integrity. • The electrified system also exhibits high energy efficiency (0.07 kWh/m 3 ). • DFT calculations and MD simulations elucidate the degradation mechanism. Persulfate-based advanced oxidation processes are promising for removing refractory contaminants from aquatic systems, however, their performance is often constrained by limited reactive oxygen species utilization and restricted mass transfer. Although spatial confinement engineering of electrocatalytic membranes has improved persulfate activation, the underlying structure–property–performance relationships remain insufficiently understood. Here, we report an electrochemical peroxomonosulfate activation system employing a three-dimensional graphene hydrogel-supported copper nanoparticle membrane (Cu-GHM) as the cathode. The system demonstrated broad applicability, achieving 73%–100% degradation across 13 representative emerging contaminants in real water matrices. Its long-term stability was further confirmed through a 100-h continuous operation test specifically using ranitidine as the model pollutant. By regulating pore architecture through controlled compression, the nanoconfined space was tuned from 13.5 to 5.0 nm, revealing a strong dependence of catalytic performance on confinement scale. The smallest pore size (5.0 nm) resulted in an 8.1-fold enhancement in degradation kinetics, attributed to increased local reactant concentration, improved mass transport, and facilitated interfacial electron transfer. Comprehensive spectroscopic analyses and molecular dynamics simulations elucidated the confinement-enhanced catalytic pathways and mass-transfer behavior. This study provides mechanistic insights into synergistic nanoconfinement and electric-field effects, offering a rational framework for designing energy-efficient electrified membrane systems for water treatment. Download: Download high-res image (250KB) Download: Download full-size image
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JOURNAL OF HAZARDOUS MATERIALS
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2026
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IF 10.6
Like Wang,Bo Liu,Shuheng Wei,Yongkang Xi,Shouwei Yin
The development of enzyme carriers capable of concurrently enriching hydrophobic pollutants and facilitating efficient aqueous-phase biocatalysis is crucial for advanced wastewater treatment. Conventional inorganic mesoporous supports, with their uniformly hydrophilic or hydrophobic surfaces, are fundamentally limited in achieving this dual function. To address this challenge, we engineered a zein-based mesoporous particle (ZMP) that features intrinsic hydrophilic–hydrophobic partitioned structure, further stabilized by a TA/Fe 3 + coordination coating. This design creates a robust platform for high-performance enzyme immobilization, exhibiting an excellent turnover frequency. Specifically, the hierarchical architecture, comprising hydrophobic inner domains and hydrophilic outer surfaces, enables the selective adsorption of nonpolar pollutants while providing a favorable microenvironment for immobilizing hydrophilic enzyme. The TA/Fe 3+ network enhances enzyme retention without compromising substrate permeability. During phenol removal, the TA/Fe 3+ -coated ZMP-immobilized enzyme exhibited a 2.1-fold increase in the reaction rate constant and higher substrate affinity compared to the uncoated system. Furthermore, the spatially partitioned ZMP exhibited stronger hydrophobic adsorption and superior catalytic performance versus conventional mesoporous silica carriers, maintaining over 90% naphthalene removal efficiency even in complex, multi-pollutant systems. These findings highlight the structural advantages of zein-based mesoporous carriers in achieving efficient, selective, and stable biocatalysis under complex environmental conditions.
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International Journal of Nanoscience
·
2026
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IF 1.4
Nadia Taloub,Ines Maddi,Meryem Madaci,Karima Hammamouche
Water pollution is one of the most critical environmental challenges threatening human health, largely due to the discharge of hazardous industrial effluents. Among them, pharmaceutical industries release highly toxic organic compounds such as phenols, which contribute significantly to environmental degradation. This study investigates the effect of surface functionalization of multiwalled carbon nanotubes (MWCNTs) on their adsorption properties toward phenol. The functionalization process was conducted through oxidation and silanization using nitric acid and 3-aminopropyl triethoxysilane (APTES) as the coupling agent, respectively. The modified samples were characterized by FTIR, XRD, and TGA analyses, which confirmed the successful activation and functionalization of the MWCNT surface. Untreated MWCNTs, MWCNT–COOH, and MWCNT–APTES were employed as adsorbents for phenol removal from aqueous solutions. Activated carbon was also examined for comparison. The adsorption results revealed that untreated MWCNTs exhibited negligible adsorption capacity, whereas nitric acid oxidation significantly enhanced the adsorption efficiency of MWCNT–COOH up to 17%. Notably, the APTES-grafted MWCNTs demonstrated the highest adsorption performance, achieving a maximum adsorption capacity of 55.17%. These findings indicate that MWCNT–APTES possesses superior adsorption efficiency for phenol compared to activated carbon, highlighting its potential as a promising adsorbent for wastewater treatment applications.
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ACS Catalysis
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2026
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IF 13.6
Zhaowei Tian,Lei Wang,Yuan Deng,Luxuan Sun,Shijie Zhou,Zhitong Qian,Xun Zhao,Xin Zhang,Yusen Yang,Min Wei
Single-atom catalysts (SACs) with explicit active sites have shown advantages in heterogeneous catalytic reactions; however, the optimization of their performance in multistep tandem reactions [e.g., hydrodeoxygenation-isomerization (HIS) reaction in biomass conversion] remains a formidable challenge. Herein, we report a metal–acid bifunctional catalyst that is featured with Ni single atoms immobilized into the montmorillonite (MMT) framework via isomorphous substitution, followed by surface acid modification. The optimized 0.4 wt % Ni/MMT-IA catalyst exhibits prominent catalytic performance toward one-pot HIS reaction of palmitic acid with an iso-alkanes yield of 80.3%, which is preponderant to the state-of-the-art catalysts. Furthermore, the obtained catalyst not only displays durability for 30 reaction cycles (240 h, 300 °C), but also demonstrates universality in HIS reactions of 10 bio-oils. By virtue of in situ spectroscopy characterizations and theoretical calculations, we substantiate a two-step consecutive reaction pathway, including *COOH hydrodeoxygenation and *COH hydroisomerization. The single-atom metal–Brønsted acid site (Niδ+-O(H)) serves as the intrinsic active center, which significantly promotes the rate-determining step (β-H scission of the carbonium ion intermediate), resulting in the extraordinarily high yield of iso-alkanes. This work provides a feasible method for the design and preparation of high-performance SACs, which shows prospective applications in biofuel synthesis.
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RENEWABLE ENERGY
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2026
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IF 9.1
Shengqu Zhang,Enli Liu,Jiaxing Liu,Xintao Feng,Yaping Jian,Yinhua Jiang,Yuanzhi Hong
The advanced photocatalytic technology with conversion of renewable solar energy to the clean hydrogen (H 2 ) and hydrogen peroxide (H 2 O 2 ) chemicals can effectively realize the national goals of “carbon emission peak & carbon neutrality”. To this end, the indium sulfide (In 2 S 3 )/zinc indium sulfide (Zn 3 In 2 S 6 ) heterojunctions with double sulfur vacancies (Vs) were successfully prepared by a feasible in-situ hydrothermal approach. The as-formed heterojunctions (denoted as Vs-ISZIS6) showed the high-performance bifunctional activities towards the both photocatalytic H 2 evolution and H 2 O 2 generation. Especially, the 10Vs-ISZIS6 sample presented the highest photocatalytic H 2 production rate (7051 μmol/h/g), which is 32.1, 2.0, 14.4, and 1.4-folds greater than that of In 2 S 3 , Zn 3 In 2 S 6 , VS-In 2 S 3 , and Vs-Zn 3 In 2 S 6 , respectively. In addition, the 20Vs-ISZIS6 heterojunction possessed the optimum concentration of H 2 O 2 production with reaching 256.4 μM under 2 h of visible-light irradiation. The boosted photocatalytic performances might be caused by the synergistic effect of the presence of Vs and the construction of heterostructure between Vs-In 2 S 3 and Vs-Zn 3 In 2 S 6 , leading to the increasing visible-light absorption and promoting the photogenerated carriers separation efficiency. As a result, the possible mechanism of improved photocatalytic performances of the Vs-ISZIS6 heterojunctions was proposed. This work offers an available avenue for developing of nanostructured heterojunctions for sustainable solar-to-chemical fuel conversion.
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CARBOHYDRATE POLYMERS
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2026
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IF 13.2
Yong Zhu,Fengyan Chen,Bingmin Wu,Yishan Tong,Kunbo Ning,Zhiyuan Zhen,Jihang Chen
Polysaccharide-based supramolecular self-assembled hydrogels are promising biomaterials owing to their biocompatibility and dynamic controllability. This study was to explore the use of a polysaccharide (PSP) isolated from a well-known Chinese herb, Polygonatum sibiricum Red. (Huangjing) in the supramolecular self-assembled hydrogel. PSP was characterized as a neutral fructan with a backbone of →1)-β-D-Fru f -(2 → and →1,6)-β-D-Fru f -(2 → units bearing O-6–substituted branches. PSP/Chitosan (PSP/CS) hydrogels were prepared with different PSP concentrations (4, 6, 8, 10, 12 wt%), forming 3D network porous structure composed of nanofiber chains, with the pore size ranging from 0.67 to 13.67 μm. Increasing PSP content markedly enhanced gel strength and stability, as evidenced by higher storage modulus (G'), increased compressive modulus (0.03–0.75 kPa), and improved thermal stability (maximum degradation-rate temperature from 290 to 302 °C). In addition, PSP/CS hydrogels exhibited high swelling (2673 ± 65%) and water retention (78.26 ± 1.58%) properties. Hydrogen bonding was the predominant driving force for self-assembly. Furthermore, PSP/CS hydrogel preliminarily showed good cytocompatibility toward Caco-2 cells. In conclusion, these findings clarify the structure–assembly–property relationships of PSP/CS hydrogel and suggest a design strategy for exploiting fructan polysaccharides in advanced biomaterials.
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Journal of the Taiwan Institute of Chemical Engineers
·
2026
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IF 6.9
Wenjian Liu,Fei Wu,Yunyu Guo,Mengjiao Fan,Yan Tan,Yumeng Chen,Jiayue Zhu,Shu Zhang,Shuang Wang,Xun Hu
Background Aromatization is an important reaction route to form stable carbon skeleton for reserving pores generated during activation of biomass. Salts with Lewis acidity are known to catalyze dehydration and condensation reactions to form aromatic skeletons, while anions of salts are generally not inert and could influence evolution of pore development. Elucidation of the potential synergistic effects anions on pore evolution of activated carbon (AC) is of importance in optimizing the process for activation. Methods This study investigated the activation of peach wood with FeCl 3 , FeCl 2 , Fe 2 (SO 4 ) 3 or Fe(NO 3 ) 3 ) at 700°C, combined with in-situ IR spectroscopy to capture real-time dynamic change of reaction intermediates during activation process. Significant findings The results showed that Cl - in the iron salts uniquely stabilizes Fe 3+ (a distinctive advantage over other anions) for achieving efficient aromatization, yielding AC with the highest S BET (816.8 m 2 /g) and superior capability for removal of basic fuchsin (87.4%). FeCl 2 (Fe 2+ ) had weakened activity for aromatization, forming AC with loosely porous aggregates (597.6 m 2 /g). The activation with Fe 2 (SO 4 ) 3 reduced the sulfates and led to sulfur deposit blocking pores (S BET : 23.5 m 2 /g), with in-situ IR identifying S-O species that directly interfered with aromatization process. Fe(NO 3 ) 3 generated oxidative radicals that disrupted aromatization and wrapped Fe 3 O 4 species in inner structure, clogging pores (S BET : 230.8 m 2 /g). Increasing temperatures from 700 to 900°C in activation with FeCl 3 reduced the S BET progressively to 642.7 m 2 /g, resulting from excessive gasification, which also decreased AC yield to 17.4% and induced irreversible micropore-to-mesopore conversion, a temperature-dependent pore evolution pattern rarely highlighted in iron-salt activation systems. Notably, In-situ IR analysis revealed accelerated dehydration and aromatization at 300-400°C for consolidating microporous frameworks by Cl - and oxidation of carbonaceous intermediates by NO 3 - as well as formation of S-O species from SO 4 2- and their interference on aromatization. This work fills the knowledge gap in decoupling the roles of anions and iron valence in biomass activation, providing a targeted strategy for designing high-performance ACs with unique pore characteristics.
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BIOMASS & BIOENERGY
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2026
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IF 7
Ge-liang Xie,Yu Luo,Kai-cheng Xia,Sheng-ren Li,Lujiang Xu,Zhen Fang
Aromatic amines, particularly aniline derivatives, serve as pivotal intermediates in the manufacture of dyes, pharmaceuticals, and polymers. However, their conventional synthesis remains heavily reliant on fossil feedstocks and frequently employs toxic reagents. The valorization of lignin presents a promising, renewable pathway to these valuable compounds, yet the reactivity of lignin-derived phenols varies markedly depending on their functional group substituents. Herein, a pronounced "promotion-inhibition dichotomy" is reported. Alkyl substituents substantially enhance reactivity-achieving a 44.3 mol% yield of aromatic amines from 4-propylphenol, representing a 34.7% increase over phenol. Conversely, methoxy groups exert a strong inhibitory effect in limiting the yield of aromatic amines from 4-propylguaiacol to only 11.0 mol%. Furthermore, Mo-Ga/HZSM-5 catalyst employed under NH 3 -H 2 atmosphere effectively doubled the yield of aromatic amines to 25.9 mol%. A sequential hydrodeoxygenation-amination strategy is further devised, boosting the yield to 34.1 mol%. Notably, by integrating this two-step strategy with a lignin-first biorefining approach, a 16.6 mol% of aromatic amines (based on lignin) could be achieved from birch. This study elucidates key reactivity principles in lignin valorization and demonstrates an integrated strategy that advances the sustainable production of aromatic amines from renewable biomass.
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MicrobiologyOpen
·
2026
·Vol. 15
·期 2
·e70258
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IF 3.6
Siqi He,Yuxin Wang,Wenli Wang,Yanhua Li,Zhiyun Zhang
The formation of Staphylococcus aureus ( S. aureus ) and Escherichia coli ( E. coli ) mixed biofilms challenges the treatment of bacterial infections. In this study, the synergistic effect of plant essential oils cinnamaldehyde (CA) and carvacrol (CV) on inhibiting S. aureus and E. coli mixed biofilms formation was investigated. The Q value of CA and CV combination on inhibiting mixed biofilms formation was 2.28, suggesting their synergistic effect. Furthermore, CA/CV nanoemulsion was prepared, which further enhanced the inhibitory effect. CA/CV nanoemulsion could significantly inhibit the mixed biofilms formation at 64 μg/mL by reduction of bacterial adhesion and motility, polysaccharide intercellular adhesin (PIA) synthesis, and the inhibition of LuxS/AI‐2 expression. In the S. aureus and E. coli infected implant model of mice, CA/CV NEs demonstrated prominent inhibitory effect on the formation of S. aureus and E. coli biofilms, and simultaneously reduced the bacterial burden. The study prepared Cinnamaldehyde‐Carvacrol nanoemulsions (CA/CV NEs) through high‐energy emulsification. In a mouse infection model, CA/CV NEs exhibited a synergistic inhibitory effect on the formation of Staphylococcus aureus–Escherichia coli mixed biofilms, reducing PIA, LuxS/AI‐2, adhesion, athletic ability, and extracellular protein.
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FOOD CHEMISTRY
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2026
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IF 10.4
Zihan Xu,Ziyi Guo,Shengran Yu,Xinyi Shen,Yanqing Cong,Tong Wei,Wenming Pei,Shi-Wen Lv
Herein, a novel porous S-CoO/C composite with spatial confinement effect is synthesized. Notably, doped sulfur can have the reaction with Co site of CoO and trigger the d-p orbital hybridization between 3p orbital of sulfur and 3d orbital of cobalt. The d-p orbital hybridization effect can not only increase the content of oxygen vacancy, but also drive the transformation of Co sites from low to high spin states. Benefitting from these changes, more unpaired electrons are generated in S-CoO/C. As a result, the S-CoO/C exhibits moderate oxidase-like property and excellent peroxidase-like activity. In view of the superb peroxidase-like activity of S-CoO/C, a colorimetric assay is proposed for detecting H 2 O 2 and hydroquinone using TMB as the substrate, and developed detection methods have great advantage being a low LOD, a high recovery and a broad linear range. Furthermore, established colorimetric assay displays excellent analysis performance even in real samples.
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