NANO
·
2025
·
IF 1.1
Xiu Fan,Haonan Wang,Donghao Li,Shixuan Zhang,Yan Shi,Yuan Zhao,Fengxiang Li
Tetracycline (TC) is difficult to degrade and is widely used, seriously threatening the environment and human health. This paper employed the two-step hydrothermal synthesis process to combine the different loading of urchin-like In 2 O 3 with laminar g-C 3 N 4 . After a series of experiments, it was proved that the 10.0 wt.% In 2 O 3 /g-C 3 N 4 is the optimal ratio. Its decompose efficiency of TC could reach 86.1%, and the apparent rate constant of degradation was 0.01655 min −1 simultaneously. This result is attributed to the S-scheme heterojunction structure within the In 2 O 3 /g-C 3 N 4 composite material. Through this mechanism, useless electrons and holes were eliminated via recombination, while the highly reactive photogenerated electrons in the g-C 3 N 4 ’s CB and the holes in the In 2 O 3 ’s VB were reserved for photocatalytic reactions and generated a substantial quantity of reactive species (RSs) that effectively degraded TC. This work provides several useful insights for removing TC or other organic pollutants from the water environment.
✓ 已验证
DOI
高影响因子
Frontiers in Bioengineering and Biotechnology
·
2026
·
IF 5.8
Yangyang Wang,Bin Liu,Xiaohua Yu,Liu Liu,Xiaoying Jin,Yan Rong,Songying Zhang
Endometriosis is a debilitating, estrogen-dependent gynecological disorder characterized by profound diagnostic delays due to clinical reliance on invasive laparoscopy. Developing noninvasive, point-of-care biomarker assessment remains a critical yet unmet medical need. Here, we report an integrated electrochemical immunosensing platform (“Flower-CN-EC”) based on a structurally engineered, petal-like graphitic carbon nitride (g-C 3 N 4 ) framework for the sensitive detection of urinary cytokeratin 19 (CK-19)-a promising candidate biomarker reflecting endometriosis-associated epithelial activity. The 3D hierarchical architecture of curled nanosheets provides an optimized microenvironment that facilitates unhindered mass transport and minimizes steric hindrance during covalent antibody immobilization. To bridge laboratory sensing with decentralized clinical translation, the sensor was coupled with a customized visual signal-processing interface featuring automated polynomial baseline correction. The sensor showed an excellent log-linear response to CK-19 (10 pg/mL-100 ng/mL), a low detection limit of 3.24 pg/mL, outstanding batch reproducibility (relative standard deviation 2.31%, n = 8), and exceptional ambient storage stability over 5 weeks. In a pilot clinical evaluation (n = 21), the platform successfully differentiated patients with histologically confirmed endometriosis from healthy controls with high statistical significance ( p = 0.0011) and AUC of 0.899. These findings establish a robust, noninvasive proof-of-concept paradigm, paving the way for low-cost, decentralized endometriosis screening and longitudinal treatment monitoring.
✓ 已验证
DOI
PubMed
高影响因子
Solar RRL
·
2026
·Vol. 10
·期 18
·e70488
·
IF 4.8
Jinze Li,Jiahao Gan,Ming Sheng,Mengyang Xu,Yining Zhang,Xiang Liu,Pengwei Huo
The accumulation of antibiotic pollutants in aquatic environments poses threats to ecosystems. Photocatalysis is a promising approach for removing these pollutants, but conventional powder photocatalysts often suffer from difficult recovery and poor stability. Therefore, developing efficient, stable, and easily recoverable catalytic materials is important. In this study, 2D g-C 3 N 4 and MoS 2 were immobilized in a polyvinylidene fluoride (PVDF) membrane to prepare a g-C 3 N 4 /MoS 2 /PVDF piezo-photocatalytic composite membrane. Under the combined action of visible light and mechanical vibration, the membrane achieved a TC degradation efficiency of 76.54%, indicating a synergistic enhancement between piezoelectric polarization and photocatalysis. The formation of C─S bonds at the g-C 3 N 4 /MoS 2 interface enhanced electronic coupling between the two phases, promoting directional migration and spatial separation of photogenerated carriers. Meanwhile, the piezoelectric built-in electric field generated by PVDF under ultrasonic excitation further suppressed carrier recombination and accelerated interfacial charge transfer. Overall, the g-C 3 N 4 /MoS 2 /PVDF membrane shows good visible-light response, piezoelectric-assisted charge separation, mass transfer, recyclability, and stability, offering a new approach for antibiotic wastewater treatment and related membrane material design.
✓ 已验证
DOI
高影响因子
IONICS
·
2026
·
IF 3.4
Yang Jia,Zong YuDuo,Wang Xingjun,Huang Huisheng,Sun Xiaorui
Nanocomposites have demonstrated excellent performance as photocatalysts in various photocatalytic reactions. Herein, we developed a nanocomposite comprising modified graphitic carbon nitride (MCN) and gold nanoparticles (Au NPs) for the hydrogen evolution reaction (HER). The MCN was synthesized via co-polymerization of melamine and malonamide. The Au/MCN nanocomposite exhibited hydrogen evolution rates of 86.7 µmol·h − 1 ·g − 1 under visible light and 1281.2 µmol·h − 1 ·g − 1 under simulated sunlight, respectively. The photocatalytic HER rate of Au/MCN under simulated sunlight was enhanced by a factor of 99.3 compared to pristine g-C 3 N 4 nanosheet (CN). Controlled hydrogen evolution experiments confirmed the contribution of the surface plasmon resonance (SPR) effect. By combining HER results with conventional characterization and electrochemical tests, we elucidated the photocatalytic mechanism, revealing that the Schottky junction and SPR effect synergistically enhance the photocatalytic performance. The SPR effect was further verified by photocatalytic experiments and ultraviolet-visible diffuse reflectance spectroscopy.
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 6
Lili Cao,Wei Wu,Jiancheng Wu,Yanli Su
In this study, MXene and graphitic carbon nitride (g-C 3 N 4 ) nanosheets were introduced into Poly(vinylidene fluoride) (PVDF) matrix to fabricate ternary composites with a well balanced dielectric constant and dielectric loss. The g-C 3 N 4 /MXene hybrid fillers were prepared via solution blending, followed by the fabrication of g-C 3 N 4 /MXene/PVDF composite films through solution casting. At 1 kHz, the composite film containing 6 wt% g-C 3 N 4 exhibited a high dielectric constant of 56.2 and a low dielectric loss of 0.12. The g-C 3 N 4 nanosheets effectively inhibited the self-stacking of MXene nanosheets, thereby suppressing the formation of conductive pathways and reducing the dielectric loss of g-C 3 N 4 /MXene/PVDF composites. Additionally, g-C 3 N 4 /MXene hybrid fillers enhanced interfacial polarization, promoted the formation of microcapacitor structures within the composites, and improved mechanical properties. The storage modulus of the composite film containing 6 wt% g-C 3 N 4 reached 1230 MPa, which is 2.12 times that of pure PVDF. This work presents a promising strategy for developing PVDF-based dielectric composites with superior dielectric performance.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
·
2026
·
IF 6.7
Yuhang Li,Haifeng Jiang,Jiahao Qi,Junyu Chen,Wenpeng Hong
This study investigated the catalytic pyrolysis of pine sawdust over transition-metal-modified g-C 3 N 4 catalysts (Ni/g-C 3 N 4 , Zn/g-C 3 N 4 , and Co/g-C 3 N 4 ) to enhance phenolic selectivity and elucidate metal–support synergistic effects. Among these catalysts, Co/g-C 3 N 4 exhibited the best performance in enhancing the relative content of phenolic compounds. Compared with non-catalytic pyrolysis at 550 ℃, the phenolic content increased by 24.66%. In addition, the results indicated that a CO 2 atmosphere negatively affected phenolic formation. The temperature-programmed TG-FTIR and evolved-gas analyses revealed that the presence of the Co/g-C 3 N 4 catalyst could promote the formation of CO and limit the generation of CH 4 and C 2 -C 3 hydrocarbons during the catalytic pyrolysis process. The related mechanism analysis showed that the interaction between Co 2 + /Co 3+ species on g-C 3 N 4 and Lewis-basic N sites enabled an interfacial synergistic effect for the selective formation of catechol and methyl-catechol. Furthermore, the exploratory multi-output regression analysis further verified that catalyst type primarily governed phenolic enrichment, whereas temperature mainly influenced syngas formation. Overall, this study provides a deeper understanding of the reaction pathways for the selective generation of phenolic compounds in biomass catalytic pyrolysis, and offers a practical approach for the integration of experimental analysis and data-driven methods.
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2026
·
IF 10.4
Wenjing Liu,Linchun Nie,Dejing Meng,Rui Yang,Haobo Yang,Shuwen Cao,Jianzhi Wang,Qingxiang Zhou
Dispersed loading of MnO 2 on g-C 3 N 4 resulted in enhanced oxidase-like activity. • MnO 2 @g-C 3 N 4 nanozyme exhibited excellent selectivity to carbaryl • Target nanozyme showed good anti-interference ability • Smartphone-assisted visual detection achieved good sensitivity and reliability. In present work, MnO 2 @g-C 3 N 4 nanozyme was synthesized via a calcination-hydrothermal two-step method to achieve enhanced oxidase-like activity based on the conception of electron transfer regulation and effectively loading for avoiding agglomeration to expose more active sites. Herein, g-C 3 N 4 served as a dispersing substrate for MnO 2 with oxidase-like activity and regulating the interfacial electron transfer, and their synergistical catalytic effect accelerated the conversion of dissolved oxygen to superoxide anion radicals (•O 2 − ), which oxidized 3,3′,5,5′-tetramethylbenzidine (TMB) to blue products. Carbaryl can be adsorbed on g-C 3 N 4 surface through π-π stacking interactions, while its carbamate group can be bound to the active centers of MnO 2 . By Lineweaver-Burk plot method, the steady-state kinetic analysis showed that carbaryl had a mixed inhibitory effect on electron transfer and the production of superoxide anion radical (•O 2 − ). Based on this principle, a smartphone-based colorimetric sensor was constructed for carbaryl detection, which exhibited a linear response in the range of 6.3–210.2 μM, with a detection limit of 3.79 μM and a quantitation limit of 12.64 μM. The method achieved satisfactory recoveries (94.3–107.5%) for spiked fruit peel samples and owned great application prospect.
✓ 已验证
DOI
PubMed
高影响因子
Applied Materials Today
·
2026
·
IF 7
Madiha Rafiq,Dan Liao,Changkun Liu
Ternary g-C 3 N 4 /Ti 3 C 2 T x /MIL-101(Fe) photocatalyst was constructed via in situ assembly. • Ti 3 C 2 T x promotes interfacial charge separation and accelerates electron transfer. • Rapid in situ H 2 O 2 generation enables an oxidant-free visible-light photo-Fenton process. • CTF achieves efficient, broad-spectrum degradation of dyes and PPCPs. Visible-light photo-Fenton oxidation represents a promising strategy for removing dyes and pharmaceuticals/personal care products (PPCPs), which are persistent water contaminants. However, its broader application is constrained by challenges such as inefficient charge separation and dependence on externally added hydrogen peroxide (H 2 O 2 ). In this study, a ternary g-C 3 N 4 /Ti 3 C 2 T x /MIL-101(Fe) photocatalyst was synthesized via the in-situ growth of MIL-101(Fe) on g-C 3 N 4 /Ti 3 C 2 T x , enabling efficient visible-light-driven, zero-external H 2 O 2 -added photo-Fenton degradation of organic pollutants. The hybrid system exhibits significantly enhanced oxygen activation and interfacial electron-transfer capability, with in situ H 2 O 2 generation rates about three times higher than those of pristine g-C 3 N 4 . Under visible-light irradiation, the composite continuously produces reactive oxygen species ( ∙ O 2 - , and ∙ OH) at substantially higher levels than g-C 3 N 4 and g-C 3 N 4 /MIL-101(Fe), indicating promoted charge separation and faster interfacial electron transfer. As a result, the catalyst enables broad-spectrum pollutant removal within 60 min, achieving degradation efficiencies of 99.78% (methylene blue), 99.49% (rhodamine B), 88.27% (tribromophenol), 61.50% (doxycycline hydrochloride), and 78.98% (levofloxacin). Overall, rapid in situ H 2 O 2 formation, coupled with efficient ROS generation, enables high-performance pollutant degradation without the need for external oxidant dosing, providing a green strategy for degrading dyes and PPCPs under visible light. Download: Download high-res image (174KB) Download: Download full-size image A ternary g-C 3 N 4 /Ti 3 C 2 T x /MIL-101(Fe) photocatalyst enables visible-light-driven, oxidant-free photo-Fenton degradation of dyes and PPCPs through MXene-promoted charge separation and rapid in situ H 2 O 2 generation. The self-generated H 2 O 2 activates Fe 3+ /Fe 2+ cycling to continuously produce h + , ∙O 2 - , and ∙OH, achieving efficient pollutant mineralization.
✓ 已验证
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2026
·
IF 13.2
Bocan Yang,Linwan Ji,Shujuan Liu,Jiaqi Wang,Jinghuai Zhang,Liangcan He,Shaoqin Liu
With the rapid development of global industrialization, demand for oil-water separation materials that can handle complex scenarios is increasing. Herein, a multifunctional bacterial cellulose (BC) derived g-C 3 N 4 /C composite aerogel for oil-water separation is proposed through a novel simultaneous fabrication process of converting raw BC membranes into carbon aerogels, doping N element into carbon skeletons and realizing in situ deposition of g-C 3 N 4 . The resultant g-C 3 N 4 /C composite aerogel integrates large absorption capacity, flame retardancy, antibacterial activity, hyperelasticity and wide operating temperature. The BC-derived g-C 3 N 4 /C composite aerogel exhibits a maximum adsorptive capacity of 188 g/g for dichloroethane and 73 g/g for n-hexane, much larger than the reported range of 65–135 g/g. Gravity-driven oil-water separation results demonstrate fluxes of 2818.4 L·m −2 ·h −1 for n-hexane and 2000 L·m −2 ·h −1 for ethyl acetate. Ten adsorption-combustion cyclic tests indicate combustion of organic solvents does not compromise adsorption performances, with n-hexane capacity retaining 97.6% of the initial value. Simultaneously, the composite aerogel shows an antibacterial rate as high as 96.3%. In addition, hyperelasticity is exhibited, with merely 0.75% irreversible deformation after 10,000 compression cycles. This effective strategy is expected to provide more possibilities for oil-water separation applications.
✓ 已验证
DOI
高影响因子
WATER RESEARCH
·
2026
·
IF 12.8
Shao YiFan,Ruirui Liu,Yongquan Zhou,Jianming Pan
Selective boron capture from hypersaline brines remains challenging because existing adsorbents generally suffer from three unresolved limitations: low metal-site activity toward neutral boric acid, poor anti-interference performance in highly saline matrices, and an unclear molecular-level activation mechanism. Here, we report an interfacial N-vacancy-engineered Co 3 O 4 @g-C 3 N 4 heterojunction (CoCN) for selective boron recovery, constructed by coupling ZIF-67-derived porous Co 3 O 4 with nitrogen-vacancy-rich ultrathin g-C 3 N 4 nanosheets. Batch adsorption experiments, real-brine tests, and density functional theory (DFT) calculations collectively show that interfacial N vacancies induce local charge redistribution and render adjacent Co sites more electron-deficient, thereby enhancing their Lewis acidity toward boric acid. This defect-regulated interfacial activation changes boric acid adsorption from thermodynamically unfavorable on the pristine interface (ΔG = +1.41 eV) to favorable on the defective interface (ΔG = −4.28 eV), promoting Co-O-B bond formation. As a result, the optimized CoCN-5 delivers a boron adsorption capacity of 128.5 mg g −1 at 25 °C within 120 min, markedly higher than that of pristine Co 3 O 4 , and achieves boron uptakes of 81 and 79 mg g −1 in real LaGuoCuo and ChaErHan salt-lake brines, respectively, while maintaining high selectivity against major coexisting ions.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
·
2026
·
IF 1.7
Sun Yubing,Zeng Nalan,Zhu Weiyu,Tang Shuai,Lu Xirui
The combined pollution of radionuclides, heavy metals and organics during uranium mining (i.e., association/coexist with heavy metals) or reprocessing of spent fuel (i.e., organic extraction) has become a prominent issue nowadays. Herein, the synergetic removal mechanism of U(VI), Cr(VI) and bisphenol(BPA) on porous covalent organic framework/graphitic carbon nitride (COF/g-C 3 N 4 ) was investigated using optical, microscopic and spectroscopic techniques. Compared to g-C 3 N 4 (1%), the high photocatalytic reduction (77%) and the excellent stability (90% after 5 recycles) of U(VI) on COF/g-C 3 N 4 could be attributed to the highly efficient separation of photogenerated carrier and wide response range of COF/g-C 3 N 4 under visible light (low band gap of 1.98 eV). In the ternary system, the increased removal of U(VI) on COF/g-C 3 N 4 was due to the consumption of h + by Cr(VI) and BPA, whereas the further increase of Cr(VI) and BPA inhibited U(VI) removal due to the competition of active sites. The interaction mechanism of U(VI) on COF/g-C 3 N 4 was ascribed to superoxide radicals by trapping and XPS analysis. These findings are crucial for the actual application of COF/g-C 3 N 4 on simultaneous removal of radionuclides, heavy metals and organic in complexed systems. Graphical abstract
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Jiayang Zhao,Gang Liu,Xinmei Liu,Limin Dong,Dongbo Wang,Fei Li,Yuewu Huang,Zhitao Yang,Wenlong Yang,Liancheng Zhao
The practical implementation of semiconductor photocatalysis is often impeded by three key challenges: restricted light absorption, rapid recombination of photogenerated charge carriers, and inadequate stability in complex aqueous environments. In this work, a g-C 3 N 4 /BiOCl heterojunction photocatalyst was successfully fabricated. The synergistic effects of its porous structure, oxygen vacancies, and Bi–N bonds significantly boost the photocatalytic performance. Photoelectrochemical analyses reveal that the heterojunction not only extends the optical absorption edge to the visible region but also enhances the photocurrent response and reduces charge transfer resistance, leading to efficient separation and transport of photogenerated carriers. Under irradiation with a 300 W xenon lamp equipped with a 420 nm cutoff filter, the g-C 3 N 4 /BiOCl heterojunction exhibited significantly enhanced photocatalytic activity in the degradation of Rhodamine B (RhB) and reduction of hexavalent chromium (Cr(VI)) relative to pristine g-C 3 N 4 and BiOCl. Notably, the g-C 3 N 4 /BiOCl-2 sample achieved 99.12% removal of 20 mg/L Cr(VI) within 25 min, with a reaction rate constant of 0.10098 min −1 —1.88-fold and 2.72-fold higher than those of pristine BiOCl and g-C 3 N 4 , respectively.Environmental adaptability studies revealed that this heterojunction exhibited optimal Cr(VI) reduction performance under acidic conditions (pH=3). Its photocatalytic reduction efficiencies in deionized water, tap water, river water, and industrial wastewater were 97%, 87.6%, 81.4%, and 73.1%, respectively, highlighting its strong practical applicability in diverse aqueous environments. Common ion influence experiments further confirmed that NH 4 + promotes the reduction process, while CO 3 2- and PO 4 3- inhibit the reaction due to the alkaline environment generated by hydrolysis. Cl - , SO 4 2- , and Ca 2+ had negligible effects. Cycling tests revealed that g-C 3 N 4 /BiOCl-2 maintained over 85% photocatalytic activity after five cycles, exhibiting superior durability compared to pure g-C 3 N 4 (11.1%) and BiOCl (39.7%). This work enhance the photocatalytic reduction of heavy metals in complex aqueous environments through the construction of a highly efficient and stable S-scheme heterojunction photocatalyst, thereby offering theoretical and experimental foundations for the degradation of industrial dye pollutants.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）