Catalysis Science & Technology
·
2025
·
IF 4.2
Dongfang Han,Li Niu,Yuangong Ma,Youlin Huang,Wen-Sheng Zhang
To utilize near-infrared (NIR) light within the solar energy spectrum, we have engineered an advanced composite of NaYF4:Yb3+,Tm3+@g-C3N4@WO3@MXene (denoted as NYT@g-C3N4@WO3@MXene) capable of absorbing NIR light to facilitate photocatalytic reactions. This environmentally benign system integrates semiconductor heterostructures (g-C3N4 and WO3) with upconversion nanoparticles (NaYF4:Yb3+,Tm3+, abbreviated as NYT) and Ti3C2 MXene nanosheets. Experimental validation demonstrated exceptional performance in antibiotic remediation, with the composite achieving 86.3% tetracycline decomposition over 12 hours under NIR irradiation through synergistic mechanisms, while also exhibiting good cycling stability. The enhanced photocatalytic activity arises from collaborative effects between upconversion luminescence, optimized charge transfer pathways within the heterojunction architecture, and the visible light absorption characteristics of MXene.
✓ 已验证
产品关联
DOI
高影响因子
Materials Horizons
·
2025
·
IF 10.7
Yihao Duan,Haihua Wang,Guiqiang Fei,Yu Wang,Liyu Sun
Modification of graphitic carbon nitride (g-C3N4) with semiconductor nanomaterials has been widely investigated as an effective method to enhance its photocatalytic activity. However, the construction of efficient g-C3N4-based heterojunction photocatalysts via an environmentally benign method remains critical. Herein, a two-dimensional (2D) few-layered MoS2/S-doped g-C3N4 hierarchical heterojunction was successfully synthesized by a simple strategy via combining small molecule-assisted liquid exfoliation, calcination and hydrothermal strategy, which was subsequently utilized for photocatalytic formaldehyde removal. The evaluation of the photocatalytic degradation reaction showed that the as-prepared 2D/2D MoS2/S-doped g-C3N4 photocatalysts exhibited superior photocatalytic activity compared to pristine g-C3N4 and S-doped g-C3N4 alone, which was attributed to the intimate interface and rapid charge transfer pathways. This heterojunction structure suppresses the excited electron–hole pair recombination within g-C3N4, which optimally enhances the photodegradation activity owing to high electron–hole pair separation efficiency. The few-layer MoS2 nanosheets play an irreplaceable role due to their unique molybdenum–sulfur atomic arrangement, thereby displaying the superior electronic properties of few-layer or even monolayer nanosheets, which make them an important transfer medium for photoexcited electrons. Meanwhile, S doping effectively modulates the band gap of g-C3N4 and introduces sufficient structural defects to inhibit electron–hole recombination. Moreover, the synthesis employs efficient and non-hazardous reagents, and the resulting catalysts exhibit outstanding stability and recyclability for pollutant degradation.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2017
·
IF 3.582
Yu-pei Li,Fa-tang Li,Xiao-jing Wang,Jun Zhao,Jiang-nan Wei,Ying-juan Hao,Ying Liu
A quantum-sized hematite iron oxide (α-Fe 2 O 3 )/graphitic carbon nitride (g-C 3 N 4 ) hybrids have been designed and constructed through a facile in situ calcination treatment. The α-Fe 2 O 3 /g-C 3 N 4 hybrids were analyzed via various characterization techniques including XRD , TEM , UV–Vis DRS , XPS , and their photocatalytic efficiencies were evaluated by visible light-driven hydrogen evolution . The results reveal that the cooperation of α-Fe 2 O 3 and g-C 3 N 4 during fabrication process leads to synergy effects of not only the morphology but also the microstructure. These hybrids exhibit much higher hydrogen evolution efficiency than pure g-C 3 N 4 under visible-light illumination due to their improved light harvesting capability, enhancement of surface areas , predominant (110) facet exposure of α-Fe 2 O 3 as well as a prominent quantum size effect , and highly efficient electron transfer and separation. A proposed Z-scheme mechanism was further verified experimentally.
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2018
·
IF 4.439
Zhengliang Zhao,Xuelin Wang,Zhu Shu,Jun Zhou,Tiantian Li,Wenbin Wang,Yigen Tan
Mesoporous g-C 3 N 4 consisting of hollow nanospheres (MCNHN) was prepared via a facile vapor-deposition method. It demonstrated an excellent visible-light photocatalytic H 2 evolution activity of 22.3 times greater than bulk g-C 3 N 4 . The special hollow nanosphere structure, increased specific surface area and modified crystalline enabled MCNHN to realize stronger light harvest and better photoinduced electron-hole separation, which leaded to highly improved photocatalytic performance. The proposed method and setup are easy to be established, and have the potential for preparing nanoscale g-C 3 N 4 with other tailored nanostructures.
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2015
·
IF 6.723
Bo Hu,Fanpeng Cai,Tianjun Chen,Mingshan Fan,Chengjie Song,Xu Yan,Weidong Shi
We synthesized g-C3N4/nano-InVO4 heterojunction-type photocatalyts by in situ growth of InVO4 nanoparticles onto the surface of g-C3N4 sheets via a hydrothermal process. The results of SEM and TEM showed that the obtained InVO4 nanoparticles 20 nm in size dispersed uniformly on the surface of g-C3N4 sheets, which revealed that g-C3N4 sheets was probably a promising support for in situ growth of nanosize materials. The achieved intimate interface promoted the charge transfer and inhibited the recombination rate of photogenerated electron–hole pairs, which significantly improved the photocatalytic activity. A possible growth process of g-C3N4/nano-InVO4 nanocomposites was proposed based on different mass fraction of g-C3N4 content. The obtained g-C3N4/nano-InVO4 nanocomposites could achieve effective separation of charge-hole pairs and stronger reducing power, which caused enhanced H2 evolution from water-splitting compared with bare g-C3N4 sheets and g-C3N4/micro-InVO4 composites, respectively. As a result, the g-C3N4/nano-InVO4 nanocomposite with a mass ratio of 80:20 possessed the maximum photocatalytic activity for hydrogen production under visible-light irradiation.
✓ 已验证
DOI
高影响因子
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
·
2019
·
IF 2.752
Yibing Feng,Yi Du,Minxing Du,Xiuying Tian,Nan Jiang,Yang Liu
The g-C 3 N 4 /BiOCl x Br 1-x heterojunctions photocatalysts with different band gaps were successfully synthesized via a simple precipitation process. The photocatalytic activitys of the g-C 3 N 4 /BiOCl x Br 1-x composites were evaluated through the degradation of Tetracycline Hydrochloride (TC) under visible light irradiation. Compared with pure g-C 3 N 4 and BiOCl x Br 1-x , the hybrids exhibited prominently enhanced visible light photocatalytic activity for the degradation of TC. The various photocatalytic perfprmances of g-C 3 N 4 /BiCl x Br 1-x heterojunctions with same content of g-C 3 N 4 were determined by different optical absorption capabilities resulting from the band structures , which could be controlling by changing the molar ratio of Br to Cl in BiOCl x Br 1-x . The 10-CN/BiOCl 0·5 Br 0.5 (g-C 3 N 4 content: 10%) showed the highest photocatalytic activity toward TC, due to the optimal synergistic effect of bandgap structure and effective separation of electron-hole pairs. Furthermore, the capture experiments of 10-CN/BiOCl 0·5 Br 0.5 during photocatalytic reaction were also carried out, the results indicted the holes (h + ) and superoxide radicals (-O 2 - ) were the main active substances causing the enhancement of photocatalytic activity. Finally, we proposed a reasonable photocatalytic degradation of this g-C 3 N 4 /BiOCl x Br 1-x heterojunction photocatalysts .
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Changqing Yuan,Haohao Wei,Xiaorong Meng,Han Shen
Vanadium oxides are regarded as one of the most promising cathode materials for aqueous zinc-ion batteries (AZIB). Among them, vanadium dioxide (VO2) has garnered significant attention due to its unique tunnel structure and superior electrochemical performance. However, VO2 also exhibits certain limitations, such as insufficient stability and poor tolerance to high currents. To enhance the rate capability of VO2, a mixed-valence form of VO2 with improved rate performance was synthesized by adjusting the amount of the reducing agent (i.e., H2C2O4·2H2O). Subsequently, a VO2/g-C3N4 composite material was fabricated using an in situ growth method. Research findings indicate that the rate capability and stability of VO2 are markedly enhanced upon combination with g-C3N4. This improvement is attributed to the protective effect of g-C3N4 on VO2. Moreover, the g-C3N4 synthesized via the solid-state method features a porous structure, which facilitates the normal intercalation and deintercalation of Zn2+ ions, providing numerous pathways for Zn2+ movement. Additionally, EDS-mapping images reveal that nitrogen (N) elements from g-C3N4 are successfully doped into VO2 nanorods. The incorporation of N elements significantly boosts the conductivity and ionic diffusion of the composite. The resulting material achieves an exceptionally high specific capacity of 500.18 mAh/g at the current density of 0.2 A/g, and it maintains a specific capacity of 282.54 mAh/g even at a high current density of 10 A/g. After 10,000 charge–discharge cycles, the capacity retention rate remains as high as 87.33% at 10 A/g, demonstrating a substantial improvement in both rate capability and cycling stability. This study provides compelling evidence for the application of mixed-valence vanadium oxides as cathode materials for AZIB and offers valuable insights into the development of vanadium oxide composite materials.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MICROCHIMICA ACTA
·
2025
·Vol. 192
·期 11
·1-10
·
IF 5.3
Chen Zixuan,Ma Shuhui,Wang Chujun,Liu Jie,Yang Xiaoyan
Monitoring of the amyloid-beta (A β ) peptide is crucial for the diagnosis and treatment of Alzheimer’s disease. Here, a label-free, signal-on ratiometric electrochemiluminescence (ECL) aptasensor was fabricated for the detection of A β peptide. Specifically, graphite-like carbon nitride (g-C 3 N 4 ) nanosheets and luminol served as the cathodic and anodic ECL emitters, respectively. K 2 S 2 O 8 and H 2 O 2 were used as the coreactants for the two emitters. Luminol was first coated on the indium tin oxide (ITO) electrode and used as the internal standard in the ratiometric biosensor. Polyaniline was then electrodeposited on the surface of the luminol-modified electrode to improve the biocompatibility and conductivity of the sensing interfaces. Gold nanoparticles were subsequently modified on the surface of polyaniline to immobilize a DNA aptamer. g-C 3 N 4 -heme incubated with different concentrations of A β solution to form g-C 3 N 4 -heme-A β complex, in which A β could specifically bind to the DNA aptamer and thus introduce g-C 3 N 4 into the system. As a result, it was observed that the ratio value of ECL intensity ( I 1 / I 2 ) significantly increased with the increase of A β concentration. Under the optimized conditions, the biosensor has a good linear response in the range 10 fM to 10 nM with a detection limit of 4.2 fM. Consequently, the ratiometric ECL sensor, characterized by high sensitivity and favorable stability, offers a reliable method for the determination of A β . Graphical
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Wei Huang,Yuqi Wang,Quan Yuan,Yiran Hu,Chunmei Wang,Xiaomin Dou,Jun Liu
Addressing water scarcity and pollution in underdeveloped regions requires safe water production from inferior sources. Solar-driven interfacial evaporation (SDIE) coupled with photocatalysis offers great potential for this challenge. Herein, a dual-functional composite (BTG@MS) was fabricated by immobilizing oxygen vacancy- and Ti(III)-rich black TiO 2 /defective g-C 3 N 4 (BTG) on melamine sponge (MS) hydrogel. The composite broadens light absorption to 300–1200 nm (80.7% average absorption efficiency) and forms a type-II heterojunction, facilitating charge separation and reactive oxygen species (ROS) generation. Benefiting from MS’s hierarchical water transport pathways and BTG’s enhanced solar utilization, BTG@MS exhibits outstanding dual performance under one-sun illumination (1 kW/m 2 ), an evaporation rate of 1.26 kg/(m 2 ·h) (74.3% photothermal efficiency) and 84.5% tylosin (TYL) degradation efficiency. It also shows salt tolerance and effectiveness in purifying four types of water sources, producing clean water meeting WHO standards. This work presents an innovative strategy integrating photothermal evaporation and photocatalysis, promising practical application in tackling the water crisis in underdeveloped regions.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 2
·121912
·
IF 7.5
Yongpan Gu,Bingbing Mao,Yali Xu,Dan Yue,Bowen Qin,Zhenling Wang,Zhongjun Li
Unsatisfied visible light response and low carrier separation efficiency hinder the advanced application of g-C 3 N 4 . In this study, the novel Co and P co-doped g-C 3 N 4 (Co/P/g-C 3 N 4 ) photocatalysts are facilely constructed in one pot by introducing vitamin B12 into the polymerization process of the urea, which obviously boosts the photocatalytic activity compared to g-C 3 N 4 . A series of characterizations confirm that the Co and P co-doping in g-C 3 N 4 not only increases the specific surface area, enhances absorption of visible light, but also facilitates the separation of charge carriers. As a result, the developed Co/P/g-C 3 N 4 -2 achieves the highest photocatalytic performance with hydrogen evolution rate of 3500.4 μmol g −1 h −1 (nearly 6.8 times that of g-C 3 N 4 ), and excellent recycle stability. This study may open a new perspective for constructing dual-elements co-doped g-C 3 N 4 materials with high photocatalytic hydrogen evolution performance.
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Wenli Zhang,Yi Yang,Xu Han,Xianhong Zheng,Haiwei Yang,Mingfei Sheng,Yi Zhang,Yiran Rong,Zongqian Wang,Peng Wang
The intermittent nature of solar irradiation limits the continuous application of semiconductor photocatalysis. Herein, a recyclable carbon nanofiber/V 2 O 5 /g-C 3 N 4 composite membrane is designed and fabricated through electrospinning and controlled carbonization, integrating photocatalytic function with electron-storage capability. The composite achieves 94.7% tetracycline degradation under light and retains 83.5% efficiency in the dark, surpassing the performance of its powder counterpart. The enhanced activity is attributed to promoted charge separation and the reversible V 5+ /V 4+ redox activity for electron storage. The composite exhibits excellent reusability and structural stability, maintaining high activity over five consecutive cycles without noticeable structural change, outperforming conventional powder catalysts in cycling durability. Mass spectrometry reveals distinct degradation pathways under light and dark conditions. This work provides a stable and easily retrievable membrane material for sustainable, continuous water purification.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 2
·121575
·
IF 7.2
Zifeng Li,Rui Shan,Guoqiang Wei,Leyi Huang,Dong Liang,Haoran Yuan,Yong Chen
Microplastics as emerging contaminants can easily form composite pollutants with other organic substances like antibiotics with higher environmental risks, posing a significant threat to aquatic ecosystems. Herein, a composite was prepared though electrostatic self-assembly of magnetic biochar and protonated g-C 3 N 4 for the simultaneous removal of microplastics and antibiotics. This composite serves as a dual-function material, leveraging its porous structure and functional groups to promote both photocatalytic degradation of antibiotics and effective adsorption of microplastics, which exhibited an adsorption capacity of PS microplastic of 56.90 mg/g and achieving stable removal of TC (30 mg/L) under irradiation of 2 h over multiple cycles with minimal efficiency loss. Magnetic biochar component not only critically enhances photocatalytic degradation efficiency of antibiotic by enriching pollutants and promoting charge separation, but also enables convenient separation and allows for excellent reusability. Moreover, sequential dissolution and electrospinning strategy not only facilitates adsorbent regeneration but also achieves the upcycling of microplastics into a high-value-added plastic film. Additionally, regenerated composite also exhibited excellent performance of PS microplastic removal with low adsorption activity decay over four cycles. This synergistic adsorption-photocatalysis system provides an effective and practical strategy for purifying water contaminated with complex emerging pollutants, offering a valuable reference for development of integrated environmental remediation technologies.
✓ 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）