CANADIAN JOURNAL OF CHEMICAL ENGINEERING
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2026
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IF 1.9
Yuanyuan Hu,Yan Tan,Huangqing Liao,Shiyan Long,Jie Huang,Hui Zhang,Gui Chen,Bailin Xiang
The environmental pollution resulting from organic dye wastewater presents a significant threat to human health. Photocatalysis has emerged as a highly promising approach for mitigating wastewater contamination. In this study, a novel synthetic strategy was developed using NH 2 -UiO-66 as a template. By precisely controlling the amount of Ag + ions introduced into the NH 2 -UiO-66 precursor and employing a straightforward reduction approach, the Ag-NH 2 -UiO-66 composite photocatalyst was successfully synthesized. Comprehensive characterization via X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), and X-ray photoelectron microscopy (XPS) confirmed that the incorporated Ag+ ions were effectively reduced to metallic silver and uniformly dispersed within the porous framework. Photocatalytic degradation experiments employing Rhodamine B (RhB) as a model pollutant under ultraviolet irradiation demonstrated that the catalyst with a silver loading of 0.05 mol/L achieved a maximum degradation efficiency of 91% within 150 min, markedly surpassing the 39% efficiency exhibited by pristine NH 2 -UiO-66. Furthermore, cyclic stability tests verified the catalyst's excellent reusability and structural durability. Mechanistic investigations revealed that superoxide radicals (O 2 − ) served as the predominant reactive species responsible for RhB degradation in the Ag-NH 2 -UiO-66 system. This work presents a simple and effective strategy for fabricating highly efficient and stable MOF-based photocatalysts for the remediation of dye-contaminated wastewater.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.7
Ruoxuan Guo,Liping Song,Wencheng Yao,Yingzhong Huo,Lu Wang,Yang Liu,Yuejie Ai,Xiangke Wang
Rational design and synthesis of stable and efficient photocatalysts for selective U(VI) capture in water remains a great challenge due to the complicated water environment. Herein, considering the synergistic interaction between anthraquinone (−AQ, electron acceptor) and methoxy (–OCH 3 , electron donor), a series of ternary donor-acceptor-acceptor (D-A1-A2) covalent triazine frameworks named as OCH 3 (x)-AQ(y) (x and y represent different content ratios) were rationally designed and synthesized via molecular regulation. This work not only constructed a directional charge-transfer pathway, but also greatly improved the utilization efficiency of photogenerated electrons in OCH 3 (x)-AQ(y) framework, which was also further verified by density functional theory (DFT) calculations. Finally, OCH 3 (2)-AQ(3) could reach nearly 100% removal efficiency of U(VI) within 240 min under visible light irradiation in air. Meanwhile, OCH 3 (2)-AQ(3) showed an extremely high distribution coefficient (K d , 1.07 × 10 6 mL·g −1 ) for U(VI) under multicomponent ion competition and further performed high removal efficiencies (>98%) in real water environments, such as seawater and groundwater. Importantly, the machine learning results also demonstrated that the structural characteristics would greatly influence the catalytic performance of CTF catalysts. The component tuning of donor-acceptor groups achieved synergistic effects in stepwise charge transport and target-selective site accessibility, which offered an effective photocatalytic strategy for U(VI) extraction in complex water environment.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Lei Miao,Wei Guo,Haitao Chen,Xiaozheng Sun
Understanding the interfacial adsorption pathways of tire‑derived contaminants on hybrid porous materials is critical for advancing colloid and interface science. Here, we design a hierarchically structured metal-organic framework (MOF)‑functionalized nanocellulose (MOF@NC) aerogel using dicarboxylic cellulose nanocrystal (DCN)‑mediated interfacial bridging, forming a chemically active and spatially interconnected adsorption network. The adsorption of 6PPD‑quinone was evaluated through kinetic, isotherm, and thermodynamic analyses, revealing rapid chemisorption consistent with a pseudo‑second‑order model and monolayer adsorption on energetically uniform sites following the Langmuir model, with a maximum adsorption capacity of 20.0 ± 0.5 mg g⁻¹ . The MOF@NC aerogel retained approximately 87.2 ± 2.4 % of its initial adsorption efficiency after five adsorption‑desorption cycles, demonstrating good interfacial stability and reusability. Spectroscopic analyses (FTIR, XPS, SEM‑EDS) identify multiple interfacial interactions, including amide‑bond formation, Lewis acid-base coordination with MOF Zr-oxo clusters, π–π stacking between aromatic domains, hydrogen bonding, and dispersive interactions. Complementary density functional theory (DFT) and reduced density gradient (RDG) reveal energetically favorable adsorption configurations, and pronounced electronic redistribution at the MOF-nanocellulose heterointerface. By integrating macroscopic adsorption behavior with molecular-level interfacial analysis, this work establishes a mechanism-oriented framework for interpreting adsorption at MOF-biopolymer hybrid interfaces, thereby advancing fundamental understanding of how hybrid colloidal interfaces govern the sequestration of aniline-derived contaminants beyond prior performance-focused studies.
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Advanced Composites and Hybrid Materials
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2026
·Vol. 9
·期 1
·47
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IF 21.8
Liu Junda,Du Chunyu,Li Zishan,Chai Chaochao,Sun Qi,Huo Bingchen,Chen Guangming
The increasing global electricity demand underscores the urgent need for clean energy solutions. Thermoelectric materials, capable of converting waste heat into electricity, present a promising avenue. However, their efficiency is often compromised by intermittent heat sources. To address this, we propose a radial thermo-actuated thermoelectric/phase-change system inspired by the energy-conserving mechanism of the sun starfish’s wrist foot. This design employs shape memory alloy to optimize heat source utilization. The device autonomously opens to sustain a temperature gradient during sufficient heat supply and closes to minimize heat dissipation when the source is inadequate. Notably, the closed-state delays the hot-end temperature drop by ~ 1700 s, significantly reducing energy loss. Further integration with a photothermal-enhanced phase change material yields an all-day self-powered thermoelectric system. Daytime operation achieves a maximum temperature difference of 28.64 °C and an output voltage of 14.89 mV, while nighttime performance maintains an average temperature difference of 6.21 °C, ensuring stable heat supply. Our work introduces a scalable strategy for sustainable power generation in outdoor environments.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.3
Xiang Li,Qiyao Li,Ping Du,Yunzhu Wang,Sufang He,Nengsheng Liu,Chunxia Liu
Covalent organic frameworks (COFs) are promising materials for wastewater purification owing to their wide photoresponse range, abundant active sites, adjustable porosity, and efficient electron transfer. In this work, a novel S-scheme heterojunction was constructed by coupling bismuth-rich bismuth iodide oxide Bi 4 O 5 I 2 with functional β-ketoenamine COFs (TATP) via in-situ solvothermal reaction. The optimized composite 2-TPBI exhibits enhanced photocatalytic activity, achieving 88.55 % TC removal within 120 min under visible light irradiation. This performance enhancement is attributed to improved light absorption and efficient spatial separation of photogenerated charge carriers by the S-scheme heterojunction. This work opened up a new avenue for designing high-performance heterostructured photocatalysts through an inorganic/organic coupling strategy for efficient wastewater remediation.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.3
Canda Zheng,Yunbo Shi,Bolun Tang,Peicheng Han,Jianhua Zhang
Tungsten oxide (WO 3 ) is widely used for detecting harmful gases, such as NO 2 , because of its excellent gas-sensing properties. However, pure WO 3 sensors suffer from high operating temperatures, poor selectivity, and rapid sensitivity degradation. In this study, for the first time, Bi 2 O 2 Se crystals were synthesized via a high-temperature solid-state reaction under a vacuum, and WO 3 /Bi 2 O 2 Se heterojunction composites were fabricated using a one-step hydrothermal method to enhance the NO 2 sensing performance. By adjusting the Bi 2 O 2 Se content, the optimal performance was achieved at 15 wt% Bi 2 O 2 Se (WB-15), which showed a high response (R g /R a = 3.42) toward 50 ppm NO 2 at 190 °C, a low detection limit (100 ppb), rapid response/recovery times (83/91 s), excellent repeatability (S = 2.42%), and good long-term stability. Characterization results showed that acidic etching (pH 1.7) increased the specific surface area and the number of active sites of Bi 2 O 2 Se, enhancing its gas adsorption capacity. Analysis of gas-sensing mechanism revealed that the n–n heterojunction between WO 3 and Bi 2 O 2 Se effectively modulated the interface barrier and carrier migration, intensifying the electron depletion effect under NO 2 and significantly improving the sensing response. This study introduced Bi 2 O 2 Se as a novel sensitizing material, offering a new approach for designing high-performance heterojunction gas sensors with enhanced sensitivity and selectivity.
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SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2026
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IF 4.6
Qingmei Zhong,Xiaomei Rong,Jiayi Liu,Huixiang Zong,Chuan Yan
The detection of pH and nitroreductase (NTR) in tissues plays a crucial role in assessing microenvironmental acid-base balance and diagnosing tumor hypoxia. However, most methods currently used for detecting substances in tissue samples require sample grinding for extraction, which compromises tissue integrity. Traditional Chinese medicine acupuncture needles offer a potential approach as they can be directly inserted into tissues, eliminating the need for destructive pretreatment procedures. In this work, we developed a novel acupuncture needles @ gold nanoparticles @ 5-mercapto-2-nitrobenzoic acid (ANs@Au NPs@MNBA) probe based on surface-enhanced Raman spectroscopy (SERS) technology, enabling simultaneous ratiometric detection of pH and NTR in both solution and intact tissue samples. The probe demonstrated excellent linear responses within pH ranges from 4.75 to 7.25 and NTR concentrations from 0 to 20.0 μg/mL. This innovative approach provides valuable insights into how tissue acid-base balance and NTR levels influence physiological functions and disease progression.
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CERAMICS INTERNATIONAL
·
2026
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IF 5.6
Meihan Ren,Xiao You,Han Luo,Xiaohu Li,Ruiqing Zhao,Xiaowu Chen,Qingliang Shan,Jixiang Dai,Jinshan Yang,Xiangyu Zhang,Shaoming Dong
SiC f /SiC ceramic matrix composites are widely used in extreme thermal environments, where the joint region governs the structural reliability. In this work, the thermal shock resistance and failure mechanisms of SiC f /SiC joints reinforced by nano-network structure are investigated. Simulation results reveal that capillary forces drive molten Si to preferentially infiltrate small pores, while gas entrapment in larger pores leads to delayed infiltration and residual defects. Under thermal shock cycles at 1000 °C and 1200 °C, the joints exhibit progressive interfacial degradation and structural weakening. Microstructural observations confirm that thermal fatigue damage initiates at the interface between the SiC f /SiC substrate and the joint layer and propagates inward. After 30 cycles of thermal shock at 1000 °C and 1200 °C, the shear strength retention decreases to 10.83 % and 3.88 %, respectively. This study clarifies the damage mechanisms of SiC f /SiC joints under thermal shock and offers insights for designing high-reliability joints for extreme environments.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.7
Guoning Chen,Jianbing Chen,Sanshuang Gao,Jun Li,Bohao Chang,Xuguang An,Linfeng Xiao,Hao Cheng,Guangzhi Hu,Yujie Ma
Conventional urea industry faces dual challenges of high energy consumption and carbon emissions. Although electrochemical co-reduction of nitrates and carbon dioxide (CO₂) offers a promising route for green urea synthesis, its electrical-to-chemical energy conversion efficiency remains constrained by sluggish reaction kinetics and high electrical energy demand. Here, we design and report a nitrogen-doped porous carbon (NC) material embedded with dispersed copper‑nickel bimetal nanoparticles (CuNi/NC) for constructing the first example of a Zn-nitrate/CO₂ battery that can output electricity while generating urea with a superior energy efficiency of 1.51 mol urea kWh −1 and a urea production rate of 110 mg h −1 g cat −1 . The proposed assembled battery exhibits exceptional stability over 300 h , retaining high urea Faradaic efficiency at 36% and yield at 101 mg h −1 g cat −1 . In situ X-ray absorption spectroscopy, infrared spectroscopy, and density functional theory simulations confirm that the active metal sites facilitate substrate adsorption and stabilize critical intermediates (* N-C-N , *NH₂, and *NO), thereby effectively accelerating C N coupling. This work breaks the ‘high-energy, single-function’ bottleneck of traditional electrochemical systems, establishing an innovative ‘carbon-negative energy supply’ paradigm for carbon-neutral agriculture and decentralized energy systems.
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Nature Communications
·
2026
·
IF 15.7
Gan He,Liu Dongjie,Zhang Ying,Han Cuiping,Cheng Hui-Ming
Controlling the morphology of Zinc (Zn) deposits is an effective strategy to produce stable Zn-metal batteries. However, the degradation of Zn negative electrodes and changes in their morphology remain poorly understood. Here, we show that the Zn plating process has two distinct stages. The first being the formation of relatively dense, lumpy Zn, while the second involves the formation of porous mossy Zn on its protrusions, which changes into electrochemically inactive dead Zn during stripping. Based on this, we propose a strategy involving a combination of cationic and anionic reagents to revive the dead Zn. The cations create a positively charged inert region on the negative electrode surface for Zn-ion dispersion that inhibits mossy Zn formation, while the anions act as a redox mediator to revive the dead Zn. Consequently, the Zn negative electrode shows a Coulombic efficiency (CE) of 99.7% and stable Zn plating/stripping over 1400 h (10 mA cm −2 and 10 mAh cm −2 ). An Ah-scale pouch cell retains 96.2% capacity after 800 cycles. This work provides key insights into mossy Zn formation and proposes a promising approach for stable Zn-metal batteries.
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Journal of Water Process Engineering
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2026
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IF 6.7
Sha Yang,Zhengqi Yang,Zhiyu Hou,Jun Liao,Lielin Wang,Congcong Ding,Lin Zhang
In this work, a SiO 2 -doped and amidoxime-grafted TiO 2 -based material was synthesized, exhibiting high uranium adsorption performance due to the bridging effect of SiO 2 and the high selectivity of the amidoxime group. The successful preparation of modified materials has been validated by means of modern analytical testing techniques (scanning electron microscopy, X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy and X-ray diffraction). In the adsorption experiment, the TiO 2 -based material exhibited a maximum adsorption capacity of 648.4 mg/g within 90 min at pH = 5 and the adsorption efficiency attained 99.1% under low-concentration conditions (C 0 = 10 mg/L). The high efficiency adsorption for U(VI) on the TiO 2 -based material could be attributed to the strong synergistic complexation of -OH and amidoxime groups with U(VI). Meanwhile, the adsorption process was also contributed by redox reaction, electrostatic attraction and the transport of interlayer bound water. Overall, the SiO 2 -doped and amidoxime-grafted TiO 2 -based material exhibited superior adsorption performance, positioning it as a promising adsorbent for the treatment of U(VI)-containing wastewater.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Haowen Wang,Dongyang Ji,Jiaxin Qi,Xueqing Zuo,Chen Sun,Zeng Fan,Lujun Pan
In today's information technology-driven society, microwave absorbing and shielding materials play an increasingly important role in both military equipment and civilian electronic devices. Especially, lightweight and high-efficiency have become crucial metrics for the design of absorbing materials. In this study, we have synthesized a kind of lightweight hollow carbon bowl@polypyrrole (HCBP) composites using a combination of a room-temperature one-step reaction, template etching, high-temperature carbonization, and chemical oxidation. The unique bowl-like architecture, characterized by sharp edges and high curvature, significantly enhances both dipole and interfacial polarization losses. The coating of thin polypyrrole films on the surfaces of carbon bowls further reinforces these polarization losses while effectively modulating the surface electromagnetic characteristics of the composite. As a result, the HCBP composite demonstrates exceptional electromagnetic wave absorption performance, achieving a minimum reflection loss of −62.15 dB at 16.66 GHz with a thickness of 2.16 mm, along with an effective absorption bandwidth of 6.88 GHz at 2.49 mm thickness. This advancement opens new possibilities for the precise design of dielectric composite electromagnetic wave absorbers with both strong absorption and broad bandwidth characteristics.
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