ANALYTICA CHIMICA ACTA
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2026
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IF 6.1
Yanhua Zhang,Wen Yao,Jian Guo,Hongyuan Huang,Jie Yang,Jiahuang Qiu,Tianxin Li,Yubo Wei,Xinrong Guo
Background Per- and polyfluoroalkyl substances (PFASs) have significant applications in industrial, military and other sectors, particularly perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA), which are classified as “suspected human carcinogens”. However, their release into aquatic environments via both point and non-point sources during production and use poses serious hazards to human health, potentially leading to hepatotoxicity, immunotoxicity, reproductive and developmental toxicity, and carcinogenic effects. PFOS/PFOA levels in tap water from Hong Kong (China) are significantly exceeding the enforceable maximum contaminant level in drinking water of 4 ng/L. Therefore, rapid screening of their concentrations is essential for monitoring water safety. Results In response, dual-color fluorescence probes based on polyphenylamine nanosheets (Y-CNNS/R-CNNS) have been successfully prepared through simple oxidation polymerization and acid polymerization. The fluorescence intensity and absorbance of Y-CNNS increase with rising concentrations of PFOS or PFOA due to radiation transition enhancement and non-radiation transition inhibition. The limits of detection are calculated to be 0.738, 15.4, 0.246 and 3.90 pM, respectively. In contrast, the fluorescence intensity of R-CNNS is quenched after adding PFOS/PFOA, owing to complex formation, with limits of detection calculated at 5.44 and 10.2 pM respectively. These results indicate the capability to detect concentrations well below the health advisory level recommended by the United States Environmental Protection Agency and the Food and Drug Administration (10 ng/L) for PFOA/PFOS. This proposed method exhibits a high sensitivity, broader detection range and lower limits of detection compared to other reported methods. Significance A new “enhanced-quenching” dual-mode and dual-color sensor based on Y-CNNS/R-CNNS has been constructed for the high-sensitively detection of PFOS/PFOA. This proposed method also exhibits good performance in analyzing PFOS/PFOA in environmental water samples included bottled water, tap water, lake water, river water and seawater, providing a new idea for the highly sensitive analysis of other PFASs in water environment.
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RSC Advances
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2026
·Vol. 16
·期 12
·11077
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IF 6.1
Xiujuan Wang,Lingzhu Wang,Yuanjun Liu,Yaming Jiang,Hao Liu
The proliferation of high-power electronics and 5G technology has created an increasing demand for high-performance electromagnetic interference (EMI) shielding materials that are durable, breathable, and comfortable for wearable applications. Although silver-coated textiles offer excellent shielding, their limited durability and susceptibility to corrosion hinder their practical use. This study develops a flexible, breathable, and corrosion-resistant electromagnetic interference (EMI) shielding spacer fabric using a multi-step coating strategy. The fabric features a conductive network formed by PDA-assisted electroless silver plating, followed by a thiol self-assembled layer (HDT) and finally encapsulated with a thermoplastic polyurethane (TPU) coating. The optimized composite fabric demonstrates an EMI shielding effectiveness (EMI SE) of up to 57.74 dB in the X-band, with excellent air permeability (2436.1 mm s −1 ), superior corrosion resistance (only 7.8% resistance change after immersion in Na 2 S solution), and mechanical durability (negligible resistance changes after 3000 compression cycles). Combined with its superhydrophobicity (contact angle >140°), this fabric offers a promising solution for wearable electronics and personal protective applications. The proliferation of high-power electronics and 5G technology has created an increasing demand for high-performance electromagnetic interference (EMI) shielding materials that are durable, breathable, and comfortable for wearable applications.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Saeed Rehman,Tao Chen,Hongjuan Sun,Muddasir Hanif,Tongjiang Peng,Osama Tariq Satti,Aref Alshameri
Phthalate esters (PAEs), widely used as plasticizers, persist as recalcitrant organic pollutants with severe ecological implications. In this study, a dual-step pyrolysis strategy was employed to engineer a Fe-N-RHC@p-MMt composite photocatalyst enriched with high-valent Fe sites, nitrogen dopants, and oxygen vacancies. The tailored hybrid achieved a remarkable 92 ± 1.4% degradation of dimethyl phthalate (DMP) with a pseudo-first-order rate constant of 0.64 min −1 in a peroxydisulfate (PDS)-mediated oxidation system under near-visible light irradiation. Structural and spectroscopic analyses revealed graphitized carbon frameworks with superior conductivity, efficient charge migration, and abundant Fe(IV) = O species formation. Mechanistic analysis reveals that Fe₄N centers regulate interfacial electron transfer, stabilize high-valent Fe(IV) = O species, and drive selective non-radical PDS activation dominated by singlet oxygen ( 1 O₂). Moreover, the generated intermediates exhibited significantly reduced toxicity, mutagenicity, and bioaccumulation risks (although intermediates P1, P3, and P6 showed elevated toxicity), validating the process's environmental compatibility. These results highlight Fe-N-RHC@p-MMt as a safe and efficient catalyst for sustainable remediation of PAE-contaminated water.
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DESALINATION
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2026
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IF 9.9
Xueping Chen,Hao Li,Jianming Pan
Silica nanocapsules hold significant importance in agriculture, medicine and machinery owing to their high specific surface area, tunable surface properties and superior loading capacity. However, the industrial-scale production of silica nanocapsules with controllable morphology is still constrained by the challenges of precise morphology control and straightforward functional modification. To bridge this gap, we propose a novel continuous and scalable approach that integrates vapor condensation nanoemulsification with hydrolysis and condensation kinetics, enabling the controllable synthesis of functional silica nanostructures in one step. Precise control over the sample morphology (including solid spheres, nanocapsules and hollow hemispheres) and architecture (shell thickness) were achieved by tuning the concentration of silane coupling agents, condensation time and Span 80 dosage. Notably, the gyrification-inspired silica nanocapsules with wrinkled surface exhibited excellent lead removal performance (removal efficiency of 99.7%), combining high adsorption capacity (567.0 mg g −1 ) with rapid kinetics (20 min). This work not only provides a scalable platform for the industrial fabrication of morphology-controllable silica but also offers fundamental insights into silica growth mechanisms, thus paving the way for the design of silica functional materials in environmental and industrial applications.
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Desalination and Water Treatment
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2026
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IF 3.4
Hao Li,Minru Su,Chen Shi,Rouyi Wang,Anqi Xu,Xiaolan Shen
High catalytic activity and long-term stability of particle electrodes are key to three-dimensional electro-activated peroxydisulfate (3D-E-PDS). This study developed the Fe-based reduced graphene oxide (Fe/rGO) hydrogel particle electrodes prepared using a low-temperature hydrothermal method, demonstrating a 9.77-fold increase in tetracycline hydrochloride (TCH) degradation rate compared with conventional two-dimensional (2D) E-PDS system. The structural properties and catalytic activities of the Fe/rGO hydrogel particles clearly depended on the iron precursor, with the Fe 3 + -derived hydrogel exhibiting the highest catalytic activity. After systematically optimizing the operational parameters (PDS concentration, current density, particle dosage, initial solution pH, TCH concentration, and agitation rate), the 3D-E-PDS system achieved a TCH degradation efficiency of 94.44% and total organic carbon removal efficiency of 46.62% within 2 h. In water matrices, Cl − promoted TCH degradation, whereas SO 4 2− , PO 4 3− , and especially CO 3 2− inhibited the degradation. Radical quenching experiments identified SO 4 · − , ·OH, 1 O 2 , and ·O 2 − as the primary reactive species. After six cycles, the 3D-E-PDS maintained a TCH degradation efficiency of 82.56%, with a degradation rate 2.56 times higher than that of the 2D-E-PDS system, validating its stability and reusability. Overall, this study establishes a one-step hydrothermal synthesis protocol for Fe/rGO hydrogel particle and demonstrates the efficacy of 3D-E-PDS in TCH degradation.
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MICROCHEMICAL JOURNAL
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2026
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IF 5.2
Haiyue Yu,Zimin Yao,Guoliang Zheng,Yan Zhao,Dantong Zhu,Fanxu Bu
The Zn 2+ level in gastric juice serves as a powerful reference for the distinction of benign/malignant lesions. However, its accurate detection remains challenging due to the complex and highly acidic samples. Herein, a ratiometric fluorescence probe was developed based on quinoline-functionalized carbonized polymer dots (CPDs) for Zn 2+ accurate detection. The probe has two emission bands at 410 nm and 490 nm. The quinoline groups on the CPDs can form coordination bonds with Zn 2+ , enabling specific recognition of zinc ions. Zn 2+ addition can lead to fluorescence quenching of quinoline component of quinoline/CPD probes in simulated gastric fluid samples, while the emission of the CPDs remains almost unchanged. This ratiometric response between emission intensity at 410 nm and 490 nm enables accurate quantitative detection of Zn 2+ . The probe exhibited a detection sensitivity of 4.56 nM for Zn 2+ and demonstrated outstanding selectivity against other metal ions, attributed to its self-calibration capability. This work offers a novel strategy for designing ion sensing platforms and holds great potential for aiding the diagnosis of gastrointestinal diseases.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Ruojia Ji,Yunhe Gong,Hongbin Yu,Xinhong Wang,Weichao Qin
The regulation of photoexcited charge carrier transfer behavior can substantially enhancing the photocatalytic performance of materials. In this study, a heterojunction photocatalyst, featuring cyano-modified carbon nitride tubes (Cy-CNT) and boron nitride (BN) nanosheets, was synthesized using a thermal condensation method. Characterization results and theoretical calculations revealed that the presence of cyano groups and unique C–N–B bonds in Cy-CNT/BN endowed it with excellent photocatalytic performance. The cyano modification induced the redistribution of charge density within the molecule and resulted in the formation of a locally uneven electronic configuration, which attenuated photogenerated electron-hole pair recombination. As an electron transfer bridge, the C–N–B bond established an interfacial transfer channel to promote electron migration and electron-hole pair separation. Consequently, the production of •O 2 − and 1 O 2 by Cy-CNT/BN was substantially enhanced by factors of 7.7 and 1.5, respectively, compared with those generated by the pristine carbon nitride tube (CNT). Ciprofloxacin was thus efficiently degraded by Cy-CNT/BN, and the kinetic constant (0.034 min −1 ) was 2.7 and 1.6 times that of CNT and Cy-CNT, respectively. Meanwhile, a floating photocatalyst was prepared by loading Cy-CNT/BN on polyurethane sponge, and the results indicated that this floating photocatalyst had good practicality in the remediation of antibiotic-contaminated surface water. The life cycle assessment results showed that, compared with CNT and Cy-CNT, Cy-CNT/BN exhibited minimum environmental impacts and had a reduced environmental burden. This paper presents a new strategy for charge carrier regulation of carbon nitride-based photocatalysts, which may promote the development of antibiotic-contaminated water remediation technology.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
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IF 8.7
Hongbo Liu,Xiaohua Jia,Ziwei Li,Haojie Song
Traditional lignocellulose-based composite films, due to the random arrangement of the matrix and lubricating domains, fail to establish effective load-transfer networks and continuous lubrication pathways, thereby exhibiting inferior mechanical and tribological properties. Inspired by the ordered multilayer structure of nacre, highly dispersible graphene was prepared via intercalation and exfoliation using 1-hexadecyl-3-methylimidazolium chloride ionic liquid and subsequently blended with lignocellulose to form a crosslinked “brick-mortar” network. A nacre-mimetic multilayer composite film was then fabricated through vacuum-assisted directional deposition. Compared with LC, the LCIGP exhibits a simultaneous enhancement in mechanical strength (90.8 MPa), toughness (5.56 MJ/m 3 ), and self-lubricating properties (coefficient of friction of 0.106), with its tensile strength up by 58.7% and toughness by 71.6%, together with a 69.3% reduction in friction coefficient. Molecular dynamics simulations showed that the ionic liquid-functionalized graphene strengthened interfacial interactions with the lignocellulose matrix and increased the number of hydrogen bonds, with the simulated mechanical and tribological properties confirming the experimental results and providing further molecular-level understanding of the reinforcement and self-lubrication mechanisms.
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JOURNAL OF HAZARDOUS MATERIALS
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2026
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IF 10.6
Fenghua Shen,Chaolong Liu,Jie Yu,Kaisong Xiang,Bangwei Bai,Xin Liang,Guangpeng Sun,Shide Li,Hui Liu
To address the issues of low activity and poor stability of manganese-based catalysts in the catalytic degradation of refractory volatile organic compounds such as chlorobenzene (CB), this study designed a sodium-doped Mn-Cu bimetallic catalyst supported on hydroxyl-rich pseudo-boehmite (PB), denoted as Na-CuMnO x /PB, depending on the route of “support hydroxylation, bimetallic synergy, and alkali metal modification”. The catalyst achieved highly efficient degradation of CB under room temperature with the non-thermal plasma assistance. The PB support significantly increased surface hydroxyl groups and acidity. MnO x /PB showed a degradation efficiency of 85.14 %, superior to the 73.98 % achieved by a conventional Al 2 O 3 -supported catalyst. Cu doping promoted the formation of a Mn-Cu synergistic structure, increasing the surface-adsorbed oxygen to 56.59 % and the Mn(IV)/Mn(III) ratio to 0.63, thereby improving the degradation efficiency to 92.02 %. However, chlorine deposition (Cl content: 3.91 %) caused rapid deactivation. After Na modification, the Na-CuMnO x /PB catalyst exhibited a further increased Mn(IV)/Mn(III) ratio of 0.79, enhanced weak basic and acidic sites. The abundant surface hydroxyl groups and alkaline sodium hydrolysis facilitated HCl generation, achieving an HCl selectivity of 40.95 % with surface chlorine deposition as low as 0.59 %, thereby enabling the catalyst to maintain a degradation efficiency of 95.95 % over 16 h. Mechanism studies revealed the crucial roles of acid-base sites, reactive oxygen species, and metal valence states in CB degradation. The bimetallic system promotes the redox cycling between Cu(II)/Cu(I) and Mn(IV)/Mn(III), enabling continuous regeneration of active species. This work provides new insights for designing highly active and chlorine-tolerant catalysts for low-temperature purification of chlorine-containing VOCs.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Haoran Song,Xudong Zhang,Mengting Guo,Pu Wang,Jie Li,Chen Li,Yan Cao,Linfeng Zhang,Qun Zhao,Xuewei Hu,Senlin Tian
The intricate relationship between catalyst size and reactivity has long been debated on the conflicting role of size effects in governing catalytic performance. A series of MXene-confined copper particle catalysts with various sizes ranging from 0.52 μm to 2.06 μm were synthesized via the confined growth strategy. Intriguingly, the pseudo-first removal rate of sulfamethoxazole exhibited a volcano-shaped relationship versus Cu particle size, and the optimal catalytic activity was achieved with the intermediate size of 1.18 μm (Cu@MXene-650 °C catalyst). The Cu particle size also influenced the generation of Cu(I), which was confirmed as the primary electron shuttle for PMS activation. Electrochemical impedance spectroscopy and cyclic voltammetry further revealed that the intermediate-sized Cu particle catalyst exhibited the lowest charge-transfer resistance and the highest electron-transfer efficiency. Hydroxyl radical (HO • ), sulfate radical (SO•- 4), singlet oxygen ( 1 O 2 ) and superoxide radical (O•- 2) were identified as the primary reactive species. Additionally, the micron-sized Cu@MXene catalyst demonstrated excellent performance over the pH range of 3.0 to 9.0, strong resistance towards common water matrix components and good stability in real river water. This work established a volcano-shaped relationship between Cu particle size and catalyst activity, thereby improving understanding of the role of metal particle size effects in advanced oxidation processes.
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CHEMICAL ENGINEERING SCIENCE
·
2026
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IF 5.1
Mei Dong,Huiliang Zhou,Qiguang Cao,Song Li
The construction of well-defined MOF-on-MOF heterostructures is significantly challenged by lattice mismatch between dissimilar frameworks. Here, we report a precisely controlled core–shell MIL-101(Fe)@CoZn-ZIF composite with a uniform “one-to-one” encapsulation structure, overcoming the intrinsic incompatibility between octahedral MIL-101(Fe) cores and tetrahedral Zeolitic Imidazolate Framework (ZIF) shells. This achievement is realized through two synergistic strategies: nucleation kinetics modulation and surfactant-mediated interfacial engineering. Systematic optimization of key parameters, including the Co 2+ Zn 2+ to Fe 3+ molar ratio (120:1), precursor concentration (150 mM), and ligand to metal ratio, enabled dimensional matching and uniform coating. Moreover, surfactants (Cetyltrimethylammonium bromide and Polyvinylpyrrolidone) effectively reduced the heterogeneous nucleation barrier, promoting oriented ZIF deposition onto MIL-101(Fe). Comprehensive characterization (SEM, TEM, XRD, FTIR, TGA, XPS and BET) confirms the well-defined hybrid architecture. When the PVP-mediated composite material was applied in sulfate radical-based advanced oxidation processes for degrading methylene blue and p-nitrophenol, it demonstrated enhanced performance and stability compared to the pristine CoZn-ZIF. This work establishes a generalizable approach for integrating topologically mismatched MOFs, advancing the design of multifunctional materials for catalysis and related fields.
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Food Chemistry-X
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2026
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IF 9.2
Hongyu Chen,Ronggang Jiang,Huimin An,Hao Xu,Xingchang Ou,Kuofei Wang,Yuan Chen,Youcang Jiang,Shi Li,Jianan Huang,Zhonghua Liu
Jasmine green tea (JGT), a distinctive Chinese tea product, derives its unique aroma via the adsorption of volatiles from jasmine flowers onto green tea-base tea (GBT). To identify the key odor-active volatiles in JGT, sensomics and chemometrics were employed, with GBT as the control. Sensory evaluation showed that GBT possesses a clean, fresh, and tender aroma, whereas JGT is characterized by a jasmine-like and refreshing scent. 35 and 31 candidate key odor-active compounds were identified in GBT and JGT, respectively, using aroma extract dilution analysis (FD > 16), and odor activity value analysis (OAV > 1). Aroma recombination, omission, and addition tests confirmed 13 key odor-active volatiles in JGT. Among these, α -farnesene and methyl salicylate were found to be the primary contributors to the jasmine-like and refreshing aromas, respectively. This study provides a theoretical reference for deeply understanding the molecular basis of JGT's aroma characteristics.
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