CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Zeen Xu,Xingyue Lei,Ru Jiang,Leihao Zhou,Shentao Jiang,Xianqiang Xiong,Qi Wang,Jianbing Li,Huayue Zhu
Scallion-inspired 3D CMC@NF evaporator was prepared. • Ultrahigh ER of 6.17 kg·m −2 ·h −1 achieved under 1-sun irradiation. • Evaporation enthalpy significantly reduced from 2415 to 828 kJ·kg −1 . • 3D CMC@NF exhibited excellent salt resistance and stable desalination. Due to its ease of operation and minimal environmental impact, solar-driven evaporation technology holds significant potential in addressing the worsening global water crisis. Inspired by the multi-layered coiled scallion, a 3D g-C 3 N 4 /MoS 2 /chitosan hydrogel@nickel foam (CMC@NF) evaporator was fabricated by decorating photothermal g-C 3 N 4 and MoS 2 , along with hydrophilic chitosan onto porous 3D nickel foam. Remarkably, water evaporation enthalpy decreased significantly from 2415 to 828 kJ·kg −1 due to the presence of hydrophilic chitosan. The multi-layered coiled structure of the scallion-like CMC@NF-2 enhances solar reflection and refraction, and enlarges the water evaporation area through its hierarchical interfacial design. Leveraging synergistic material advantages and optimized geometric configuration, the CMC@NF-2 evaporator attained an ultrahigh water evaporation rate of 6.17 kg·m −2 ·h −1 (normalized to the top-irradiation projected area). The CMC@NF-2 system also exhibited outstanding outdoor water evaporation of 74.54 kg·m −2 ·d −1 , an output adequate to satisfy the daily water requirements of 23 adults (based on a standard of 3.2 L·person −1 ·day −1 ). This study significantly enhances the capabilities of existing solar desalination techniques for delivering portable, cost-effective freshwater supplies, and simultaneously provides a thorough physical interpretation and actionable optimization frameworks for CMC@NF-2 systems. Download: Download high-res image (367KB) Download: Download full-size image
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Lin Qiao,Ze Zhang,Dong Fu
Utilizing photocatalysis to reduce CO 2 into value-added products is a promising and sustainable pathway. This study reports the fabrication of a low-cost CuO/carbon spheres/g-C 3 N 4 composite material without the use of precious metals, featuring a p-n heterojunction between CuO and g-C 3 N 4 interconnected by a conductive carbon bridge. The optimal sample has suitable CO 2 adsorption capacity (1.4 mmol/g at 1 bar, 25 °C) and exceptional CO 2 photocatalytic performance. The optimal sample achieves CO and CH 4 production yields of 110.95 and 9.9 μmol/g h −1 , respectively, with 73.7% CO selectivity. Photoelectrochemical tests reveal that the CuO/g-C 3 N 4 heterojunction facilitates rapid electron transfer via the carbon medium, achieving effective electrons(e − )-holes(h + ) separation. In-situ Diffuse Reflectance Infrared Fourier Transform Spectroscopy (in-situ DRIFTS) analysis and Density Functional Theory (DFT) calculations collaboratively verify the efficient reaction pathway via key intermediates (COOH*, CHO*, CH 2 O*, and CH 3 O*) and elucidate the electronic structure driving the enhanced charge dynamics. Furthermore, property-performance correlation analysis indicates that the charge separation efficiency is the main performance driving factor. A life cycle assessment (LCA) demonstrates that avoiding the use of precious metals during catalyst preparation leads to a significant reduction in the environmental footprint of CuO/carbon spheres/g-C 3 N 4 . The main environmental impact comes from electricity consumption during production. This work provides a sustainable blueprint for designing efficient photocatalysts by integrating interfacial engineering with mechanistic understanding for solar-driven CO 2 valorization.
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APPLIED SURFACE SCIENCE
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2026
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IF 6.6
Qiang Bi,Kechun Wang,Yi Zhao,Guangdong Wu,Yanyan Zhou,Changbin Tang,Zhihua Leng,Juanqin Xue
Graphitic carbon nitride (g-C 3 N 4 ) is restricted by its narrow light absorption range, which results in low photocatalytic efficiency. To address this problem, a plasmon- and upconversion-enhanced ternary photocatalyst (denoted as GdF 3 @g-C 3 N 4 @Ag) was subtly designed and synthesized in situ. The g-C 3 N 4 nanosheets were encapsulated on the GdF 3 by a simple vapor deposition method, which has not been reported in the literature. The GdF 3 @g-C 3 N 4 @Ag composite exhibits full-spectrum responsiveness and remarkably improved photocatalytic activity in the degradation of tetracycline hydrochloride compared with plain g-C 3 N 4 . The degradation rate constant of the best-performing photocatalyst GdF 3 @g-C 3 N 4 @5%Ag (2.618 × 10 −2 min −1 ) is higher than that of g-C 3 N 4 (1.723 × 10 −2 min −1 ) under irradiation at λ ≥ 400 nm. This study develops a full-spectrum responsive photocatalyst based on GdF 3 @g-C 3 N 4 @Ag, showing its great potential to fully utilize the solar spectrum, and provides important insights into the construction of full-spectrum responsive photocatalysts.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2026
·Vol. 143
·期 43
·e71460
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IF 3.1
Haoyu Lv,Bin Li,Zhigang Hu,Mengjing Zhou,Jiawei Li,Longfei He,Yuzuo Liu,Ming Ma
In this study, a ternary deep eutectic solvent (DES) was prepared using glycerol (Gly), acrylamide (AM), and choline chloride (ChCl) as raw materials, and polyethylene glycol (PEG) with different mass fractions was introduced as a filler into the DES to fabricate PEG/P(G-AM-ChCl) composite hydrogels via photopolymerization. The composite hydrogels were characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). The effects of PEG content on the swelling behavior, water holding capacity, mechanical properties, and fatigue resistance of the composite hydrogels were systematically investigated. The results showed that the addition of PEG promoted the formation of a denser hydrogen bonding network within the hydrogel, effectively reducing the water loss rate, and the equilibrium swelling degree of the composite hydrogels increased to 9.61 with increasing PEG content. The composite hydrogels exhibited excellent mechanical properties and fatigue resistance, with a compressive strength reaching 0.157 MPa after PEG addition, which was 1.25 times higher than that of the PEG-free group. This study provides a simple method for preparing composite hydrogels with high water holding efficiency.
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高影响因子
CATALYSIS TODAY
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2026
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IF 5.1
Wenxin Jin,Yanting Dou,Baotong Xu,Yuanjin Wang,Qin Zheng,Likun Sheng,Yu Gao,Yang Mu,Guiyan Zhao,Jiqi Zheng,Fu Ding,Yaguang Sun,Yanfeng Bi,Zhenhe Xu
Periodic trends in elemental properties provide a fundamental framework for understanding catalytic behavior, yet their role in photocatalysis remains largely unexplored at the orbital-interaction level. Here, a systematic series of alkaline earth metal (Mg, Ca, Sr, and Ba)-doped graphitic carbon nitride (g-C 3 N 4 ) photocatalysts is developed to reveal how periodic electronic characteristics govern photocatalytic performance. Despite the similar chemical nature of the dopants, both H 2 evolution and H 2 O 2 production exhibit a pronounced volcano-type dependence along the Mg-Ca-Sr-Ba sequence under visible light, with Sr-doped g-C 3 N 4 delivering the optimal performance (329.86 μmol g −1 h −1 for H 2 evolution and 1363.58 μmol g −1 h −1 for H 2 O 2 production). This periodic behavior originates from an orbital-synergy mechanism between the outermost p orbitals of alkaline earth metals and the intrinsic C/N 2 p electronic states of g-C 3 N 4 . Moderate p -orbital reactivity enables enhanced π-conjugation, improved charge delocalization, and reduced kinetic barriers for key reaction intermediates, whereas excessive orbital perturbation disrupts electronic balance and deteriorates catalytic efficiency. These findings establish a periodic orbital-regulation principle governing volcano-type photocatalysis and provide a general design framework linking elemental periodicity with semiconductor catalyst optimization.
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高影响因子
Journal of Environmental Chemical Engineering
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2026
·Vol. 14
·期 5
·123598
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IF 7.5
Di Li,Huimin Zhu,Yuan Zhang,Shaofei Yang,Ruiyu Zhu,Jiaoe Dang,Fang Song,Jun Zhou
The escalating global energy crisis and environmental pollution has drawn increasing attention. As a green and sustainable alternative, photocatalytic H 2 O 2 synthesis has attracted widespread interest. In this study, we has designed a novel exciton-regulated photocatalyst (Bi@g-C 3 N 4 /ST-NS) by integrating bismuth-doped graphitic carbon nitride with porphyrin-based supramolecular nanostructures (ST-NS). The composite was synthesized through a sequential process involving solvothermal reaction, high-temperature calcination, and solution-phase self-assembly. We systematically investigated its crystal structure, photoelectronic properties, and the mechanistic basis of photocatalytic H 2 O 2 production. Characterization results confirmed the successful incorporation of Bi single atoms into the sixfold cavities of g-C 3 N 4 , forming a p-n heterojunction with ST-NS while preserving the crystallinity of the host matrix. The built-in interfacial electric field not only promoted efficient charge separation but also extended the visible-light absorption range and prolonged the carrier lifetime. Performance evaluations revealed that Bi@g-C 3 N 4 /ST-NS exhibited significantly enhanced H 2 O 2 generation activity compared to pristine Bi@g-C 3 N 4 , with optimal performance achieved at a 10:1 mass ratio. Under visible-light irradiation, the H 2 O 2 concentration reached 1134 μM in the reaction solution, representing a 2.5-fold improvement over Bi@g-C 3 N 4 . Mechanistic studies indicated that the heterojunction facilitated efficient intersystem crossing from singlet to triplet excitons. Rather than following the conventional superoxide radical (·O 2 - ) pathway, these triplet excitons activated ground-state oxygen to generate singlet oxygen ( 1 O 2 ) via resonance energy transfer. The subsequent highly selective two-electron reduction of 1 O 2 yielded H 2 O 2 , effectively circumventing the high-energy barrier steps associated with traditional pathways. This work thus presented a promising strategy for the rational design of high-efficiency photocatalytic systems through exciton regulation.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Angzhan Li,Dayong Tian,Yao Guo,Xingling Zhang,Shaopeng Zhang,Liu Cheng,Li Wang,Yifeng Zhang,Ning Fu
Perfluorooctanoic acid (PFOA) is currently regarded as a refractory pollutant. The development efficient degradation technologies remains a critical challenge owing to the strong stability of C-F bond. However, current photocatalytic approaches for PFOA degradation suffer from slow reaction kinetics. Herein, a series of ultrathin BiOCl@g-C 3 N 4 (BiCN) was prepared using a hydrothermal method, and their PFOA degradation performance was evaluated. The most effective photocatalyst (BiCN-2) achieved a 92.3% PFOA removal rate within 30 min (rate constant k = 0.1059 min −1 ), with a corresponding defluorination efficiency of 24.8%. Specifically, the exposed (101) facets of BiOCl accelerate electron movement, whereas the BiOCl@g-C 3 N 4 heterojunction interface enhances the separation of photogenerated charges. Additionally, the metallic Bi nanoparticles acted as both electron bridges and sources of hot electrons via the surface plasmon resonance effect, further boosting the reaction. Superoxide radicals, photogenerated electrons, and photogenerated holes were identified as the main reactive species in the degradation reaction. Density functional theory was employed to determine the interaction mechanism between PFOA and the photocatalyst. This study provides insights into an efficient alternative for the photocatalytic degradation of PFOA.
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高影响因子
ELECTROCHIMICA ACTA
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2026
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IF 5.8
Wanying Li,Xing Liu,Jiajing Dong,Jiahui Li,Ting-Ting Li,Ching-Wen Lou
A dual modification strategy combining MHNT tubular structure and Fe doping is proposed. • MHNT tubular structure offers high surface area and effective charge transport channels. • Fe doping introduces impurity levels to tailor the band structure of g-C 3 N. • Photoelectrode material maintains stable photoelectrochemical response after one-year ambient storage. Dopamine (DA), a key neurotransmitter in the central nervous system, exhibits concentration abnormalities that are closely associated with various neurological disorders. Thus, its accurate and stable detection in biological samples is crucial for early diagnosis. In this study, using melamine as a precursor, hydrochloric acid-modified halloysite nanotubes (MHNT) as a porous support material, and FeCl 3 ·6H 2 O as an iron source, an Fe-doped graphitic carbon nitride/halloysite nanotube (Fe-g-C 3 N 4 /MHNT) composite photoelectrode material was successfully synthesized via a hydrothermal dispersion combined with high-temperature calcination method. A photoelectrochemical sensor was subsequently constructed for dopamine detection. Fe doping effectively modulated the band structure of g-C 3 N 4 , broadening the visible light absorption range and suppressing the recombination of photogenerated charge carriers. Meanwhile, the tubular structure of MHNT provided a high specific surface area and efficient charge transport pathways. Under optimized conditions, the sensor exhibited good linearity in the concentration ranges of 10–200 μM and 200–2300 μM, with a sensitivity of 0.527 μA·μM −1 ·cm −2 and a detection limit as low as 0.28 μM (S/N = 3). Moreover, the sensor demonstrated excellent selectivity for dopamine in the presence of interfering substances in simulated body fluid. Notably, after one year of storage at room temperature, the sensor retained a stable linear photocurrent response with a detection limit of only 0.39 μM (S/N = 3), indicating outstanding long-term storage stability. This work effectively overcomes the intrinsic drawbacks of g-C 3 N 4 , including insufficient active sites and rapid charge carrier recombination, through the synergistic strategy of MHNT incorporation and Fe doping, providing a viable pathway for the development of highly selective and stable photoelectrochemical sensors. Download: Download high-res image (201KB) Download: Download full-size image
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Xin Liu,Yunlong Zhao,Ping Wang,XueYing Zhao,Ronglan Wu,Qingqing Guan,Lu Wang,Chao Yang
A creatinine-mediated post-polymerization calcination approach has been developed for modifying g-C 3 N 4 nanosheets to enhance their photocatalytic hydrogen production and pollutant degradation activities. The incorporation of creatine or its derivatives induced a negative shift in the conduction and valence band edges of g-C 3 N 4 and activated n-π ⁎ electronic transition, thereby enhancing the reducing ability of electrons and extending light absorption range. Creatinine-calcined g-C 3 N 4 (TCN-30Crn) exhibited a significantly enhanced photocatalytic activity toward hydrogen production (3721.9 μmol h −1 g −1 ) in water, which was 8.6 times that of the pristine counterpart. The hydrogen production rate was further increased to 8853.67 μmol h −1 g −1 in aqueous solution of sodium dihydrogen phosphate. TCN-30Crn also showed broad catalytic activity for the photodegradation of methyl orange, rhodamine B, o -nitroaniline, methylene blue, and ciprofloxacin. The high activity of creatinine-calcined g-C 3 N 4 could be attributed to the improved separation efficiency of photo-generated electron-hole pairs and the inhibition of charge carriers recombination.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2026
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IF 3.1
Wenqin Xu,Jinhui Chen,Caihong Zhuang,Qinhui Chen
A high loading conductive filler is typically required to reach the percolation threshold for composites; however, it leads to a decline in the material's physical and mechanical properties. Here, the conductive hydrogel (PAC-Ag-H-G) with a high-quality 3D interconnected network contained silver nanoparticles (Ag NPs), hydroxylated carbon nanotubes (HCNT), and graphene (G) in the matrix of polyacrylic acid/chitosan (PAC) was fabricated. PAC-Ag-H-G showed stretchable properties, good toughness, and breaking strength fatigue resistance. Most importantly, thanks to the 3D interconnected network formed by the vertex-edge-face structure of Ag NPs-HCNT-G, the electrical conductivity of the hydrogel is significantly enhanced with the minimal addition of only 0.2% (relative to AA) of HCNT and GO, respectively. The conductivity of PAC-Ag-H-G1 is 4.27 times that of PAC. It had steady biological or non-biological adhesion and could sensitively detect human joint movements. Additionally, this hydrogel exhibited excellent antibacterial effects against Gram-positive bacteria ( S.aureus ) and Gram-negative bacteria ( E.coli ). PAC-Ag-H-G conductive hydrogel is expected to adhere directly to the human body or the humanoid robot joint bearings for flexible motion monitoring.
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高影响因子
Food and Bioprocess Technology
·
2026
·Vol. 19
·期 3
·152
·
IF 5.6
Yang Lingfan,Liu Ruiqi,Shi Yingkun,Li Changhao,Wang Guangxian,Xie Haijiao,Luo Ruiming,Wang Songlei
Xanthine (XA) and hypoxanthine (HA) are key biochemical markers of meat freshness, yet rapid, wide-range, and enzyme-free quantification in complex meat matrices remains challenging. Here we report a density functional theory (DFT)-guided Cu–MoS 2 /g-C 3 N 4 heterostructure electrochemical sensor for broad-range non-enzymatic detection of XA and HA. The heterojunction prepared via a hydrothermal and ultrasonic strategy provides an efficient charge-transport pathway and enriched catalytic interfaces. DFT calculations reveal pronounced interfacial charge redistribution and strong adsorption of XA and HA on the Cu–MoS 2 /g-C 3 N 4 surface, with adsorption energies of − 0.98 eV for XA and − 2.16 eV for HA, explaining the boosted electrooxidation response. The sensor achieves low detection limits of 0.15 μM for XA and 0.28 μM for HA and wide linear ranges from 0.913 to 1643.5 μM and from 0.918 to 1653.1 μM, respectively, and enables simultaneous quantification from 0.5 to 400 μM with excellent linearity. Good stability, reproducibility, and anti-interference capability are obtained. In real meat samples, recoveries from 90.7% to 108.3% for XA and from 91.3% to 111.4% for HA agree well with high-performance liquid chromatography, supporting rapid meat freshness evaluation.
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高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2026
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IF 4.4
Hongxia Zhang,Junxin Huang,Ming Zhong,Fangzhen He,Na Dong,Bitao Su,Ziqiang Lei
To address the remediation needs of antibiotic-contaminated water, this study developed a highly efficient and stable novel photocatalyst. A 2D/3D S-scheme g-C 3 N 4 /Bi 2 MoO 6 (CN/BMO) heterojunction was synthesized via a simple preparation method, with its core mechanism relying on the internal electric field (IEF) formed at the semiconductor interface. This field actively regulates the S-scheme charge transfer pathway, a process directly validated through a series of photoelectrochemical analyses: significantly quenched photoluminescence signals and shortened carrier lifetimes confirmed efficient interfacial recombination, while enhanced photocurrent responses and reduced electrochemical impedance indicated effective spatial separation of electron-hole pairs. The optimized carrier separation efficiency significantly improved the photocatalytic performance of the material. Under visible light irradiation, the degradation efficiency of tetracycline (TC) reached 85%, with degradation rates exceeding 80% for multiple antibiotic pollutants. Additionally, the material exhibited excellent stability in five consecutive cycling experiments. Mechanistic studies revealed that the synergistic effect of superoxide radicals ( · O 2 − ) and photogenerated holes (h + ) dominated the reaction process, as conclusively verified by electron paramagnetic resonance (EPR) spectroscopy. Degradation pathway analysis via mass spectrometry (MC-LS) demonstrated that TC primarily undergoes cleavage through demethylation, hydroxylation, and ring-opening reactions, with simultaneous assessment of the toxicity and ecological risks of reaction intermediates. This work provides new theoretical foundations and practical solutions for the photocatalytic removal of antibiotics in real water bodies.
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高影响因子
危险品化学品经营许可证（带存储）