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Yang C, Cao H, Su F, Tian M, Xie H, Zhang Y, Jin X, Li X, Li Z. Structural Distortion of g-C 3N 4 Induced by a Schiff Base Reaction for Efficient Photocatalytic H 2 Evolution. Chem Asian J 2024; 19:e202400588. [PMID: 38926300 DOI: 10.1002/asia.202400588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 06/22/2024] [Accepted: 06/25/2024] [Indexed: 06/28/2024]
Abstract
Photocatalytic H2 evolution by water splitting is a promising approach to address the challenges of environmental pollution and energy scarcity. Graphitic carbon nitride (g-C3N4) has emerged as a star photocatalyst because of its numerous advantages. To address the limitations of traditional g-C3N4, namely its inadequate visible light response and rapid recombination of photogenerated carriers, we employed a schiff base reaction to synthesize -C=N- doped g-C3N4. The introduction of -C=N- groups at the bridging nitrogen sites induced structural distortion in g-C3N4, facilitating n-π* electronic transitions from the lone pair electrons of nitrogen atom and extending light absorption up to 600 nm. Moreover, the presence of heterogeneous π-conjugated electron distribution effectively traps photogenerated electrons and enhances charge carrier separation. Benefiting from its expanded spectral response range, unique electronic properties, increased specific surface area, the doped g-C3N4 exhibited outstanding photocatalytic H2 evolution performance of 1050.13 μmol/g/h. The value was 5.9 times greater than the pristine g-C3N4.
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Affiliation(s)
- Chunxia Yang
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, 473061, P. R. China
| | - Hailong Cao
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, 473061, P. R. China
| | - Fengyun Su
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, 473061, P. R. China
| | - Mengzhen Tian
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, 473061, P. R. China
| | - Haiquan Xie
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, 473061, P. R. China
| | - Yezhen Zhang
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, 473061, P. R. China
| | - Xiaoli Jin
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, 473061, P. R. China
| | - Xin Li
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, 473061, P. R. China
| | - Zhengdao Li
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, 473061, P. R. China
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Li Y, Qu C, Ye Q, Meng F, Yang D, Wang L. Enhanced tetracycline degradation by novel Mn-FeOOH/CNNS photocatalysts in a visible-light-driven photocatalysis coupled peroxydisulfate system. ENVIRONMENTAL RESEARCH 2024; 257:119293. [PMID: 38838749 DOI: 10.1016/j.envres.2024.119293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/16/2024] [Accepted: 05/30/2024] [Indexed: 06/07/2024]
Abstract
Recently, photocatalysis combined peroxydisulfate activation under visible light (PC-PDS/Vis) was developed as a promising technology for removing antibiotics in water. Herein, Mn doped FeOOH (Mn-FeOOH) nanoclusters were grown in-situ on the surface of graphitic carbon nitride nanosheets (CNNS) using a wet chemical method, which served as a visible-light-driven photocatalyst for peroxydisulfate (PDS) activation. Photovoltaic property characterizations revealed that Mn-FeOOH/CNNS owned superior light capture ability and carrier separation efficiency. According to DFT calculations, the synergistic effect between Mn and Fe species was proved to enhance the adsorption and activation of PDS. 99.7% of tetracycline (TC) was rapidly removed in 50 min in the PC-PDS/Vis system. In addition, Mn-FeOOH/CNNS exhibited high recycling stability with low iron leaching, attributed to the interaction between Mn-FeOOH clusters and carbon species. Quenching experiments and electron spin resonance (ESR) tests unveiled that •O2- played a significant role in TC removal, while •OH and SO4•- acted as additional roles contributing to the overall process. These findings given a new strategy for antibiotics degradation by photocatalysis, offering deeper insights for the advancement of sustainable and cutting-edge wastewater treatment technologies.
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Affiliation(s)
- Yongqi Li
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, College of Environmental Science & Engineering, Beijing University of Technology, Beijing 100124, China
| | - Chao Qu
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, College of Environmental Science & Engineering, Beijing University of Technology, Beijing 100124, China.
| | - Qing Ye
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, College of Environmental Science & Engineering, Beijing University of Technology, Beijing 100124, China
| | - Fanwei Meng
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, College of Environmental Science & Engineering, Beijing University of Technology, Beijing 100124, China
| | - Decai Yang
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, College of Environmental Science & Engineering, Beijing University of Technology, Beijing 100124, China
| | - Lanyang Wang
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, College of Environmental Science & Engineering, Beijing University of Technology, Beijing 100124, China
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Yu H, Cui Q, Li F, Wang Y, Liao X, Hu L, Ma H, Wu D, Wei Q, Ju H. Electrochemiluminescence quenching effect of Cu 2O towards flower-like ferric ion-doped g-C 3N 4 and its application for Cyfra21-1 immunosensing. Talanta 2024; 277:126321. [PMID: 38805945 DOI: 10.1016/j.talanta.2024.126321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 04/27/2024] [Accepted: 05/23/2024] [Indexed: 05/30/2024]
Abstract
In this article, ferric ion-doped floral graphite carbon nitride (Fe-CN-3, energy donor) was used to construct the substrate of the immunosensor and copper oxide nanocubes (Cu2O, energy acceptor) were taken as an efficient ECL quenching probe. A sandwich quench electrochemiluminescence (ECL) immunosensor for soluble cytokeratin 19 fragment (Cyfra21-1) detection was preliminarily developed based on a novel resonant energy transfer donor-acceptor pair. Fe-CN-3, a carbon nitride that combines the advantages of metal ion doping as well as morphology modulation, is used in ECL luminophores to provide more excellent ECL performance, which makes a significant contribution to the application and development of carbon nitride in the field of ECL biosensors. The regular shape, high specific surface area and excellent biocompatibility of the quencher Cu2O nanocubes facilitate the labeling of secondary antibodies and the construction of sensors. Meanwhile, as an energy acceptor, the UV absorption spectrum of Cu2O can overlap efficiently with the energy donor's ECL emission spectrum, making it prone to the occurrence of ECL-RET and thus obtaining an excellent quenching effect. These merits of the donor-acceptor pair enable the sensor to have a wide detection range of 0.00005-100 ng/mL and a low detection limit of 17.4 fg/mL (S/N = 3), which provides a new approach and theoretical basis for the clinical detection of lung cancer.
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Affiliation(s)
- Hao Yu
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Qianqian Cui
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Fengdi Li
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Yun Wang
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Xianpeng Liao
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Lihua Hu
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China.
| | - Hongmin Ma
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Dan Wu
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Qin Wei
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China; Department of Chemistry, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
| | - Huangxian Ju
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China; State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, PR China
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Lasso-Escobar AV, Castrillon EDC, Acosta J, Navarro S, Correa-Penagos E, Rojas J, Ávila-Torres YP. Modulation of Electronic Availability in g-C 3N 4 Using Nickel (II), Manganese (II), and Copper (II) to Enhance the Disinfection and Photocatalytic Properties. Molecules 2024; 29:3775. [PMID: 39202853 PMCID: PMC11356843 DOI: 10.3390/molecules29163775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Revised: 08/05/2024] [Accepted: 08/06/2024] [Indexed: 09/03/2024] Open
Abstract
Carbon nitrides can form coordination compounds or metallic oxides in the presence of transition metals, depending on the reaction conditions. By adjusting the pH to basic levels for mild synthesis with metals, composites like g-C3N4-M(OH)x (where M represents metals) were obtained for nickel (II) and manganese (II), while copper (II) yielded coordination compounds such as Cu-g-C3N4. These materials underwent spectroscopic and electrochemical characterization, revealing their photocatalytic potential to generate superoxide anion radicals-a feature consistent across all metals. Notably, the copper coordination compound also produced significant hydroxyl radicals. Leveraging this catalytic advantage, with band gap energy in the visible region, all compounds were activated to disinfect E. coli bacteria, achieving total disinfection with Cu-g-C3N4. The textural properties influence the catalytic performance, with copper's stabilization as a coordination compound enabling more efficient activity compared to the other metals. Additionally, the determination of radicals generated under light in the presence of dicloxacillin supported the proposed mechanism and highlighted the potential for degrading organic molecules with this new material, alongside its disinfectant properties.
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Affiliation(s)
- Angie V. Lasso-Escobar
- Environmental Remediation and Biocatalysis Research Group (GIRAB), Institute of Chemistry, University of Antioquia UdeA, Calle 70 No. 52-21, Medellín 050014, Colombia; (A.V.L.-E.); (E.D.C.C.); (J.A.); (E.C.-P.); (J.R.)
| | - Elkin Darío C. Castrillon
- Environmental Remediation and Biocatalysis Research Group (GIRAB), Institute of Chemistry, University of Antioquia UdeA, Calle 70 No. 52-21, Medellín 050014, Colombia; (A.V.L.-E.); (E.D.C.C.); (J.A.); (E.C.-P.); (J.R.)
| | - Jorge Acosta
- Environmental Remediation and Biocatalysis Research Group (GIRAB), Institute of Chemistry, University of Antioquia UdeA, Calle 70 No. 52-21, Medellín 050014, Colombia; (A.V.L.-E.); (E.D.C.C.); (J.A.); (E.C.-P.); (J.R.)
| | - Sandra Navarro
- Grupo de Investigación Cecoltec, Cecoltec Services, Cra 43 A 18 sur 135, Medellín 050022, Colombia;
| | - Estefanía Correa-Penagos
- Environmental Remediation and Biocatalysis Research Group (GIRAB), Institute of Chemistry, University of Antioquia UdeA, Calle 70 No. 52-21, Medellín 050014, Colombia; (A.V.L.-E.); (E.D.C.C.); (J.A.); (E.C.-P.); (J.R.)
| | - John Rojas
- Environmental Remediation and Biocatalysis Research Group (GIRAB), Institute of Chemistry, University of Antioquia UdeA, Calle 70 No. 52-21, Medellín 050014, Colombia; (A.V.L.-E.); (E.D.C.C.); (J.A.); (E.C.-P.); (J.R.)
| | - Yenny P. Ávila-Torres
- Environmental Remediation and Biocatalysis Research Group (GIRAB), Institute of Chemistry, University of Antioquia UdeA, Calle 70 No. 52-21, Medellín 050014, Colombia; (A.V.L.-E.); (E.D.C.C.); (J.A.); (E.C.-P.); (J.R.)
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Wang Y, Li C, Wang S, Shao Z, Xie L, Qin Y, Zhang L, Xu K, Chai X. 0D/2D dual Fenton α-Fe 2O 3/Fe-doped g-C 3N 4 photocatalyst and the synergistic photo-Fenton catalytic mechanism insight. CHEMOSPHERE 2024; 358:142158. [PMID: 38697561 DOI: 10.1016/j.chemosphere.2024.142158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 04/08/2024] [Accepted: 04/24/2024] [Indexed: 05/05/2024]
Abstract
A novel dual Photo-Fenton photocatalyst Fe2O3-Fe-CN with excellent Fe(III)/Fe(II) conversion efficiency and trace metal ion leaching rate has been fabricated by in-situ deposition of α-Fe2O3 quantum dots on ultrathin porous Fe-doped carbon nitride (Fe-CN) nanosheets. The iron species in Fe-CN and α-Fe2O3 QDs constitute a mutually reinforcing dual Photo-Fenton effect. The 4% Fe2O3-Fe-CN showed superior performance with kobs values 8.60 and 4.80 folders greater than pure CN and Fe-CN, respectively. The synergistic effect between α-Fe2O3 QDs and the ultrathin porous structure of Fe-CN is the primary reason for the outstanding catalytic performance exhibited by α-Fe2O3/Fe-CN. On one hand, the ultrathin porous structure of Fe-CN promotes the rapid transfer of photogenerated electrons. On the other hand, the efficient photogenerated charge separation at the α-Fe2O3/Fe-CN interface enables more photogenerated electrons to participate in the Fe3+/Fe2+ conversion and H2O2 activation. The trapping experiments demonstrate that •OH and •O2- are the primary active species in TC degradation. This work presents novel insights into the design of efficient heterogeneous Fenton catalysts for practical applications.
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Affiliation(s)
- Ying Wang
- Yunnan Key Laboratory of Wood Adhesive and Glued Products, Southwest Forestry University, Kunming, 650224, China; College of Material and Chemical Engineering, Southwest Forestry University, Kunming, 650224, China
| | - Chen Li
- Yunnan Key Laboratory of Wood Adhesive and Glued Products, Southwest Forestry University, Kunming, 650224, China; College of Material and Chemical Engineering, Southwest Forestry University, Kunming, 650224, China
| | - Shengkang Wang
- College of Material and Chemical Engineering, Southwest Forestry University, Kunming, 650224, China
| | - Zonghan Shao
- College of Material and Chemical Engineering, Southwest Forestry University, Kunming, 650224, China
| | - Linkun Xie
- Yunnan Key Laboratory of Wood Adhesive and Glued Products, Southwest Forestry University, Kunming, 650224, China
| | - Yongqian Qin
- College of Material and Chemical Engineering, Southwest Forestry University, Kunming, 650224, China
| | - Lianpeng Zhang
- College of Material and Chemical Engineering, Southwest Forestry University, Kunming, 650224, China
| | - Kaimeng Xu
- College of Material and Chemical Engineering, Southwest Forestry University, Kunming, 650224, China.
| | - Xijuan Chai
- Yunnan Key Laboratory of Wood Adhesive and Glued Products, Southwest Forestry University, Kunming, 650224, China; College of Material and Chemical Engineering, Southwest Forestry University, Kunming, 650224, China.
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Kalidasan K, Mallapur S, Munirathnam K, Nagarajaiah H, Reddy MBM, Kakarla RR, Raghu AV. Transition metals-doped g-C 3N 4 nanostructures as advanced photocatalysts for energy and environmental applications. CHEMOSPHERE 2024; 352:141354. [PMID: 38311034 DOI: 10.1016/j.chemosphere.2024.141354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 01/07/2024] [Accepted: 01/31/2024] [Indexed: 02/06/2024]
Abstract
Graphitic carbon nitride (g-C3N4)-based heterostructured photocatalysts have received significant attention for its potential applications in the treatment of wastewater and hydrogen evolution. The utilization of semiconductor materials in heterogeneous photocatalysis has recently received great attention due to their potential and eco-friendly properties. Doping with metal ions plays a crucial role in altering the photochemical characteristics of g-C3N4, effectively enhancing photoabsorption into the visible range and thus improving the photocatalytic performance of doped photocatalysts. As an emerging nanomaterial, nanostructured g-C3N4 represents a visible light-active semiconducting photocatalyst that has attracted significant interest in the photocatalysis field, particularly for its practical water treatment applications. To the best of our knowledge, investigations of functionalized photocatalytic (PC) materials on 3d transition metal-doped g-C3N4 remain unexplored in the existing literature. g-C3N4 based heterohybrid photocatalysts have demonstrated excellent reusability, making them highly promising for wastewater treatment applications. This paper describes the overview of numerous studies conducted on the heterostructured g-C3N4 photocatalysts with various 3d metals. Research studies have revealed that the introduction of element doping with various 3d transition metals (e.g., Ti, Mn, Fe, Co, Ni, Cu, Zn, etc.) into g-C3N4 is an efficient approach to enhance degradation efficacy and boost photocatalytic activity (PCA) of doped g-C3N4 catalysts. Moreover, the significance of g-C3N4 heterostructured nanohybrids is highlighted, particularly in the context of wastewater treatment applications. The study concludes by providing insights into future perspectives in this developing area of research, with a specific focus on the degradation of various organic contaminants.
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Affiliation(s)
- Kavya Kalidasan
- Department of Chemistry, School of Applied Sciences, REVA University, Kattigenahalli, Yelahanka, Bangalore, 560064, India
| | - Srinivas Mallapur
- Department of Chemistry, School of Applied Sciences, REVA University, Kattigenahalli, Yelahanka, Bangalore, 560064, India.
| | - K Munirathnam
- Department of Physics, School of Applied Sciences, REVA University, Kattigenahalli, Yelahanka, Bangalore, 560064, India
| | - H Nagarajaiah
- Department of Chemistry, School of Applied Sciences, REVA University, Kattigenahalli, Yelahanka, Bangalore, 560064, India
| | - M B Madhusudana Reddy
- Department of Chemistry, School of Applied Sciences, REVA University, Kattigenahalli, Yelahanka, Bangalore, 560064, India
| | - Raghava Reddy Kakarla
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia.
| | - Anjanapura V Raghu
- Faculty of Allied Health Sciences, BLDE (Deemed-to-be University), Vijayapura, 586103, Karnataka, India.
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Hu C, He J, Liang J, Lin T, Liu Q. Heterogeneous photo-Fenton catalyst α-Fe 2O 3@g-C 3N 4@NH 2-MIL-101(Fe) with dual Z-Scheme heterojunction for degradation of tetracycline. ENVIRONMENTAL RESEARCH 2023; 231:116313. [PMID: 37270080 DOI: 10.1016/j.envres.2023.116313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 05/29/2023] [Accepted: 05/31/2023] [Indexed: 06/05/2023]
Abstract
A novel photo-Fenton catalyst α-Fe2O3@g-C3N4@NH2-MIL-101(Fe) (FGN) with dual Z-scheme heterojunction was successfully prepared by hydrothermal method to degrade tetracycline (TC). The preparation conditions were optimized by orthogonal test, and the successful synthesis was confirmed by characterization analyses. The prepared FGN showed better light absorption performance, higher photoelectrons-holes separation efficiency, lower photoelectrons transfer resistance, and higher specific surface area and pore capacity compared with α-Fe2O3@g-C3N4 and α-Fe2O3. The effects of experimental conditions on the catalytic degradation of TC were investigated. The degradation rate of 10 mg/L TC could reach 98.33% within 2 h when the dosage of FGN was 200 mg/L, and the degradation rate could remain 92.27% after 5 times of reuse. Furthermore, the XRD spectra and XPS spectra of FGN before and after reuse were compared to explore the structural stability and catalytic active sites of FGN, respectively. According to the identification of oxidation intermediates, three degradation pathways of TC were proposed. Through H2O2 consumption experiment, radical-scavenging experiments, EPR results, the mechanism of the dual Z-scheme heterojunction was proved. The improved performance of FGN was attributed to the dual Z-Scheme heterojunction effectively promoting the separation of photogenerated electrons from the holes and accelerating the electrons transfer, and the increase of the specific surface area.
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Affiliation(s)
- Chunyan Hu
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment (Ministry of Education), Chongqing University, Chongqing, 400045, China
| | - Jinke He
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment (Ministry of Education), Chongqing University, Chongqing, 400045, China
| | - Jianjun Liang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment (Ministry of Education), Chongqing University, Chongqing, 400045, China.
| | - Tao Lin
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment (Ministry of Education), Chongqing University, Chongqing, 400045, China
| | - Qiuliang Liu
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment (Ministry of Education), Chongqing University, Chongqing, 400045, China
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Feng G, Huang H, Zhang M, Wu Z, Sun D, Chen Q, Yang D, Zheng Y, Chen Y, Jing X. Single Atom Iron-Doped Graphic-Phase C 3 N 4 Semiconductor Nanosheets for Augmented Sonodynamic Melanoma Therapy Synergy with Endowed Chemodynamic Effect. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2302579. [PMID: 37282773 PMCID: PMC10427360 DOI: 10.1002/advs.202302579] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Indexed: 06/08/2023]
Abstract
Sonodynamic therapy (SDT) is a non-invasive therapeutic modality with high tissue-penetration depth to induce reactive oxygen species (ROS) generation for tumor treatment. However, the clinical translation of SDT is restricted seriously by the lack of high-performance sonosensitizers. Herein, the distinct single atom iron (Fe)-doped graphitic-phase carbon nitride (C3 N4 ) semiconductor nanosheets (Fe-C3 N4 NSs) are designed and engineered as chemoreactive sonosensitizers to effectively separate the electrons (e- ) and holes (h+ ) pairs, achieving high yields of ROS generation against melanoma upon ultrasound (US) activation. Especially, the single atom Fe doping not only substantially elevates the separation efficiency of the e- -h+ pairs involved in SDT, but also can serve as high-performance peroxidase mimetic enzyme to catalyze the Fenton reaction for generating abundant hydroxyl radicals, therefore synergistically augmenting the curative effect mediated by SDT. As verified by density functional theory simulation, the doping of Fe atom significantly promotes the charge redistribution in the C3 N4 -based NSs, which improves their synergistic SDT/chemodynamic activities. Both the in vitro and in vivo assays demonstrate that Fe-C3 N4 NSs feature an outstanding antitumor effect by aggrandizing the sono-chemodynamic effect. This work illustrates a unique single-atom doping strategy for ameliorating the sonosensitizers, and also effectively expands the innovative anticancer-therapeutic applications of semiconductor-based inorganic sonosensitizers.
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Affiliation(s)
- Guiying Feng
- Department of UltrasonographyHainan General Hospital/Hainan Affiliated Hospital of Hainan Medical University570311HaikouP. R. China
| | - Hui Huang
- Materdicine Lab, School of Life SciencesShanghai UniversityShanghai200444P. R. China
| | - Min Zhang
- Department of UltrasonographyHainan General Hospital/Hainan Affiliated Hospital of Hainan Medical University570311HaikouP. R. China
| | - Zhuole Wu
- Department of UltrasonographyHainan General Hospital/Hainan Affiliated Hospital of Hainan Medical University570311HaikouP. R. China
| | - Dandan Sun
- Department of UltrasonographyHainan General Hospital/Hainan Affiliated Hospital of Hainan Medical University570311HaikouP. R. China
| | - Qiqing Chen
- Department of UltrasonographyHainan General Hospital/Hainan Affiliated Hospital of Hainan Medical University570311HaikouP. R. China
| | - Dayan Yang
- Department of UltrasonographyHainan General Hospital/Hainan Affiliated Hospital of Hainan Medical University570311HaikouP. R. China
| | - Yuanyi Zheng
- Department of Ultrasound in MedicineShanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai Institute of Ultrasound in Medicine200032ShanghaiP. R. China
| | - Yu Chen
- Materdicine Lab, School of Life SciencesShanghai UniversityShanghai200444P. R. China
| | - Xiangxiang Jing
- Department of UltrasonographyHainan General Hospital/Hainan Affiliated Hospital of Hainan Medical University570311HaikouP. R. China
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Xin L, Yuxin W, Pan L, Jingming G, Guosong L. Boosting activation of molecular oxygen on the surface of fluorine doped g-C3N4 for efficient degradation of tetracycline: Synergistic effect of surface double central atom coordination and photo-Fenton oxidation. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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10
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Li J, Chen Y, Zhu L, Liao L, Wang X, Xu X, Qiu L, Xi J, Li P, Duo S. In situ fabrication of a novel CdS/ZnIn 2S 4/g-C 3N 4 ternary heterojunction with enhanced visible-light photocatalytic performance. RSC Adv 2022; 12:32480-32487. [PMID: 36425734 PMCID: PMC9651134 DOI: 10.1039/d2ra06328j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 11/08/2022] [Indexed: 11/13/2022] Open
Abstract
In this study, a novel g-C3N4-based ternary heterojunction was rationally designed and constructed by the in situ growth of ZnIn2S4 nanosheets and CdS nanoparticles onto the g-C3N4 nanosheets using a facile two-step oil-bath method. Through optimizing the proportion of ZnIn2S4 and CdS component, g-C3N4 nanosheets coupled with ZnIn2S4 nanosheets and CdS nanoparticles (denoted as CdS/ZnIn2S4/g-C3N4) exhibited obviously higher photocatalytic properties for RhB removal than the single-component and dual-component systems. Among the as-obtained ternary photocatalysts, it was found that the ternary CdS/ZnIn2S4/g-C3N4-0.2 photocatalyst displayed the optimum photocatalytic property (96%) within a short time (30 min), which was almost 27.42 and 1.17 times higher than that of pure g-C3N4 and binary ZnIn2S4/g-C3N4-0.7 composite. The excellent activity of the ternary CdS/ZnIn2S4/g-C3N4 heterostructure is assigned to the synergetic effects of CdS nanoparticles, ZnIn2S4 nanosheets and g-C3N4 nanosheets, which not only broaden the visible-light absorption range, but also improve the charge mobility and separation rate, thus boosting the visible-light-driven photocatalytic property of g-C3N4.
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Affiliation(s)
- Jingzhe Li
- Jiangxi Key Laboratory of Surface Engineering, School of Materials and Mechanical & Electrical Engineering, Jiangxi Science and Technology Normal University Nanchang Jiangxi 330013 P. R. China
| | - Yue Chen
- Jiangxi Key Laboratory of Surface Engineering, School of Materials and Mechanical & Electrical Engineering, Jiangxi Science and Technology Normal University Nanchang Jiangxi 330013 P. R. China
| | - Liezhen Zhu
- Jiangxi Key Laboratory of Surface Engineering, School of Materials and Mechanical & Electrical Engineering, Jiangxi Science and Technology Normal University Nanchang Jiangxi 330013 P. R. China
| | - Linfa Liao
- Jiangxi Key Laboratory of Surface Engineering, School of Materials and Mechanical & Electrical Engineering, Jiangxi Science and Technology Normal University Nanchang Jiangxi 330013 P. R. China
| | - Xinmao Wang
- Jiangxi Key Laboratory of Surface Engineering, School of Materials and Mechanical & Electrical Engineering, Jiangxi Science and Technology Normal University Nanchang Jiangxi 330013 P. R. China
| | - Xun Xu
- Jiangxi Key Laboratory of Surface Engineering, School of Materials and Mechanical & Electrical Engineering, Jiangxi Science and Technology Normal University Nanchang Jiangxi 330013 P. R. China
| | - Lingfang Qiu
- Jiangxi Key Laboratory of Surface Engineering, School of Materials and Mechanical & Electrical Engineering, Jiangxi Science and Technology Normal University Nanchang Jiangxi 330013 P. R. China
| | - Jiangbo Xi
- Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology Wuhan 430073 P. R. China
| | - Ping Li
- Jiangxi Key Laboratory of Surface Engineering, School of Materials and Mechanical & Electrical Engineering, Jiangxi Science and Technology Normal University Nanchang Jiangxi 330013 P. R. China
| | - Shuwang Duo
- Jiangxi Key Laboratory of Surface Engineering, School of Materials and Mechanical & Electrical Engineering, Jiangxi Science and Technology Normal University Nanchang Jiangxi 330013 P. R. China
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11
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Lai C, Ma D, Yi H, Zhang M, Xu F, Huo X, Ye H, Li L, Yang L, Tang L, Yan M. Functional partition of Fe and Ti co-doped g-C3N4 for photo-Fenton degradation of oxytetracycline: Performance, mechanism, and DFT study. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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12
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Ren X, Xia M, Chong B, Yan X, Lin B, Yang G. Transition metal modified 3DOM WO3 with activated N N bond triggering high-efficiency nitrogen photoreduction. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117734] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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13
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Yang H, Dai K, Zhang J, Dawson G. Inorganic-organic hybrid photocatalysts: Syntheses, mechanisms, and applications. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(22)64096-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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14
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Li X, Zhang X, Wang S, Yu P, Xu Y, Sun Y. Highly enhanced heterogeneous photo-Fenton process for tetracycline degradation by Fe/SCN Fenton-like catalyst. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 312:114856. [PMID: 35325739 DOI: 10.1016/j.jenvman.2022.114856] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 02/10/2022] [Accepted: 03/05/2022] [Indexed: 06/14/2023]
Abstract
To suppress the electron-hole recombination and enhance the electron transfer on carbon nitride, an Fe-doped porous carbon nitride catalyst (Fe/SCN) was synthesized via supramolecular self-assembly method and applied in heterogeneous Fenton activation for efficient tetracycline (TC) degradation. Various characterizations revealed that the catalyst exhibited excellent visible light capture performance and electron transfer capacity. The highest degradation efficiency and mineralization rate of TC (10 mg L-1) were achieved under neutral condition (90.3% and 61.2%, respectively) with the leaching of Fe less than 14 μg L-1. Free radical quenching experiments and spin-resonance spectroscopy characterizations revealed the dominating role of OH in TC degradation, and density functional theory calculation confirmed the formation of Fe-NX and revealed the interaction between Fe sites and H2O2. Three possible pathways of TC degradation were proposed, and the biological inhibition test revealed the potential of Fe/SCN/H2O2 system to reduce environmental risks caused by TC. This work provides a new insight into the design of metal-doped heterogeneous Fenton catalyst for the efficient degradation of antibiotic contaminants in water.
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Affiliation(s)
- Xi Li
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Xiao Zhang
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Shiwen Wang
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Peng Yu
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Yanhua Xu
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Yongjun Sun
- College of Urban Construction, Nanjing Tech University, Nanjing, 211816, China.
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15
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Huo Z, Liao Y, He Y, Zhang Y, Liao X, Zhang Q, Wu H, Shi J, Wen G, Su H, Yao S. Efficient Interfacial Charge Transfer Based on 2D/2D Heterojunctions of Fe-C3N4/Ti3C2 for Improving the Photocatalytic Degradation of Antibiotics. Front Chem 2022; 10:865847. [PMID: 35677594 PMCID: PMC9168236 DOI: 10.3389/fchem.2022.865847] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 04/05/2022] [Indexed: 12/02/2022] Open
Abstract
Graphitic carbon nitride (g-C3N4) has shown to be a promising photocatalyst that, however, suffers from strong charge recombination and poor conductivity, while MXenes have shown to be perfect cocatalysts for the photocatalytic process but show poor stability. In this study, we successfully constructed 2D/2D heterojunctions of Fe-C3N4/Ti3C2 for the photocatalytic degradation of antibiotics. In this study, multilayer Ti3C2 was obtained by etching Ti3AlC2, and then Fe-C3N4/Ti3C2 photocatalyst was prepared by the one-pot microwave method and high-temperature calcination method. The synthesized samples were characterized by XRD, SEM, TEM, XPS, TGA, BET, DRS, PL, and other means. The photocatalytic degradation of tetracycline hydrochloride by Fe-C3N4/Ti3C2 was in accordance with the first-order reaction kinetics model, and the apparent rate constant k was 2.83, 2.06, and 1.77 times that of g-C3N4, Fe-C3N4, and g-C3N4/Ti3C2, respectively. Through the mechanism study, it was shown that the most active species in the reaction system was • O2−, while h+ and •OH had a relatively lower effect on the degradation system.
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Affiliation(s)
- Zhaohui Huo
- School of Chemistry and Materials Science, Guangdong University of Education, Guangzhou, China
- Engineering Technology Development Center of Advanced Materials & Energy Saving and Emission Reduction in Guangdong Colleges and Universities, Guangzhou, China
- *Correspondence: Zhaohui Huo,
| | - Yanmin Liao
- School of Chemistry and Materials Science, Guangdong University of Education, Guangzhou, China
| | - Yongyi He
- School of Chemistry and Materials Science, Guangdong University of Education, Guangzhou, China
| | - Yifan Zhang
- School of Chemistry and Materials Science, Guangdong University of Education, Guangzhou, China
| | - Xiaolin Liao
- School of Chemistry and Materials Science, Guangdong University of Education, Guangzhou, China
| | - Qitong Zhang
- School of Chemistry and Materials Science, Guangdong University of Education, Guangzhou, China
| | - Haojie Wu
- School of Chemistry and Materials Science, Guangdong University of Education, Guangzhou, China
| | - Junjie Shi
- School of Chemistry and Materials Science, Guangdong University of Education, Guangzhou, China
| | - Genglong Wen
- School of Chemistry and Materials Science, Guangdong University of Education, Guangzhou, China
| | - Haixia Su
- School of Chemistry and Materials Science, Guangdong University of Education, Guangzhou, China
| | - Suyang Yao
- School of Chemistry and Materials Science, Guangdong University of Education, Guangzhou, China
- Engineering Technology Development Center of Advanced Materials & Energy Saving and Emission Reduction in Guangdong Colleges and Universities, Guangzhou, China
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16
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Yu X, Su H, Zou J, Liu Q, Wang L, Tang H. Doping-induced metal–N active sites and bandgap engineering in graphitic carbon nitride for enhancing photocatalytic H2 evolution performance. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(21)63849-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Das S, Chowdhury A. Recent advancements of g-C 3N 4-based magnetic photocatalysts towards the degradation of organic pollutants: a review. NANOTECHNOLOGY 2021; 33:072004. [PMID: 34731840 DOI: 10.1088/1361-6528/ac3614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 11/02/2021] [Indexed: 06/13/2023]
Abstract
Heterogeneous photocatalysis premised on advanced oxidation processes has witnessed a broad application perspective, including water purification and environmental remediation. In particular, the graphitic carbon nitride (g-C3N4), an earth-abundant metal-free conjugated polymer, has acquired extensive application scope and interdisciplinary consideration owing to its outstanding structural and physicochemical properties. However, several issues such as the high recombination rate of the photo-generated electron-hole pairs, smaller specific surface area, and lower electrical conductivity curtail the catalytic efficacy of bulk g-C3N4. Another challenging task is separating the catalyst from the reaction medium, limiting their reusability and practical applications. Therefore, several methodologies are adopted strategically to tackle these issues. Attention is being paid, especially to the magnetic nanocomposites (NCs) based catalysts to enhance efficiency and proficient reusability property. This review summarizes the latest progress related to the design and development of magnetic g-C3N4-based NCs and their utilization in photocatalytic systems. The usefulness of the semiconductor heterojunctions on the catalytic activity, working mechanism, and degradation of pollutants are discussed in detail. The major challenges and prospects of using magnetic g-C3N4-based NCs for photocatalytic applications are highlighted in this report.
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Affiliation(s)
- Suma Das
- Organic Electronics & Sensor Laboratory, Department of Physics, National Institute of Technology Silchar, Assam 788010, India
| | - Avijit Chowdhury
- Organic Electronics & Sensor Laboratory, Department of Physics, National Institute of Technology Silchar, Assam 788010, India
- Department of Condensed Matter Physics and Material Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700106, India
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18
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Wang S, Wang X, Liu B, Xiao X, Wang L, Huang W. Boosting the photocatalytic hydrogen production performance of graphitic carbon nitride nanosheets by tailoring the cyano groups. J Colloid Interface Sci 2021; 610:495-503. [PMID: 34838319 DOI: 10.1016/j.jcis.2021.11.098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 11/16/2021] [Accepted: 11/17/2021] [Indexed: 11/15/2022]
Abstract
Graphitic carbon nitride (g-C3N4) is a promising visible light responsive photocatalyst for solar hydrogen production. However, pristine g-C3N4 suffers from severe charge recombination, resulting in a poor photocatalytic activity. Herein, a facile KOH-assisted sealed heating process is designed to tailor the electronic structure of g-C3N4, leading to a significantly enhanced and stable photocatalytic hydrogen production rate of 225.1 µmol h-1 using only 50 mg of the photocatalyst. An excellent apparent quantum efficiency of 16.82% is achieved at 420 nm. Systematic studies reveal that KOH-assisted sealed heating can generate more cyano groups onto the framework of g-C3N4, which can increase the charge carrier density and reduce the surface charge transfer resistance, promoting charge separation and transfer. The new findings demonstrated in this work provide a facile strategy for the design of low-cost and efficient photocatalyst for solar fuel production.
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Affiliation(s)
- Songcan Wang
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE), Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China.
| | - Xin Wang
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE), Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Boyan Liu
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE), Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Xiong Xiao
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE), Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Lianzhou Wang
- Nanomaterials Centre, School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, QLD 4072, Australia.
| | - Wei Huang
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE), Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China.
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19
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Meng J, Zhang X, Liu Y, Ren M, Guo Y, Yang X, Yang Y. Engineering of graphitic carbon nitride with simultaneous potassium doping sites and nitrogen defects for notably enhanced photocatalytic oxidation performance. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 796:148946. [PMID: 34273839 DOI: 10.1016/j.scitotenv.2021.148946] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/06/2021] [Accepted: 07/06/2021] [Indexed: 06/13/2023]
Abstract
Graphitic carbon nitride (g-C3N4) offers exciting opportunities for sustainable photocatalytic oxidation of organic pollutants but suffers from drawbacks of insufficient oxidation driving force and low quantum efficiency. To over the drawbacks, here a simple and effective strategy was developed to engineer g-C3N4 with simultaneous interstitially embedded potassium dopant and nitrogen defects, and the process included supramolecular preorganization followed by KOH-assisted thermal polycondensation. In the prepared DN-K-CN catalysts, potassium doping level and the amount of nitrogen defects were both controllable. With the increment of potassium doping level, the bandgap of the DN-K-CN became narrow, along with continuously downshifted valence band position. The DN-K-CN showed greatly enhanced visible-light photocatalytic oxidation performance with respect to g-C3N4 in the degradation of emerging phenolic pollutants, acetaminophen and methylparaben; meanwhile, the oxidation performance of DN-K-CN depended on potassium doping level and the amount of nitrogen defects. Combination of experimental findings and theory calculations it is confirmed that the enhanced photocatalytic oxidation performance of DN-K-CN was attributed to the synergistic effect of potassium dopant and nitrogen defects, which resulted in the generation of plentiful active oxygen species and the improvement of oxidation driving force of valence holes. The influence of potassium dopant and nitrogen defects on the electronic and band structures of g-C3N4 was revealed; simultaneously, mechanism of the enhanced photocatalytic oxidation performance of g-C3N4 after the introduction of potassium dopant and nitrogen defects was studied. The present work provided new insights into the electronic and band structure tuning for the improvement of the photocatalytic oxidation performance of g-C3N4.
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Affiliation(s)
- Jiaqi Meng
- School of Environment, Northeast Normal University, Changchun 130117, PR China.
| | - Xueyan Zhang
- School of Environment, Northeast Normal University, Changchun 130117, PR China.
| | - Yunqing Liu
- School of Environment, Northeast Normal University, Changchun 130117, PR China.
| | - Miao Ren
- School of Environment, Northeast Normal University, Changchun 130117, PR China.
| | - Yihang Guo
- School of Environment, Northeast Normal University, Changchun 130117, PR China.
| | - Xia Yang
- School of Environment, Northeast Normal University, Changchun 130117, PR China.
| | - Yuxin Yang
- School of Environment, Northeast Normal University, Changchun 130117, PR China.
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20
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Xiao J, Zhang JW, Zhang J, Pan L, Shi C, Zhang X, Zou JJ. Synergy of Iron Doping and Cyano Groups for Enhanced Photocatalytic Hydrogen Production over C 3 N 4. Chemistry 2021; 27:17628-17636. [PMID: 34648677 DOI: 10.1002/chem.202103092] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Indexed: 11/06/2022]
Abstract
Improving the insufficient carrier separation dynamics is still of significance in carbon nitride (C3 N4 ) research. Extensive research has been devoted to improving the carrier separation efficiency through a single strategy, while ignoring the synergistic enhancement effect produced by coupling two or more conventional strategies. Herein, we reported the fabrication of cyano group-containing Fe-doped C3 N4 porous materials via direct co-calcination of iron acetylacetonate and melamine for synergistically improving the photocatalytic performance. Iron acetylacetonate can promote the generation of cyano groups and form Fe-doping in C3 N4 , thereby increasing the visible-light absorption and reactive sites. Further, the internal donor-acceptor system formed by cyano groups and Fe-doped sites promoted charge carrier separation and inhibited the radiation recombination of e- -h+ pairs. The optimized photocatalytic activity of Fe-CN-2 sample was 4.5 times of bulk C3 N4 (BCN).
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Affiliation(s)
- Jie Xiao
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University and, Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P. R. China
| | - Jing-Wen Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University and, Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P. R. China
| | - Jiaxiang Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University and, Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P. R. China
| | - Lun Pan
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University and, Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P. R. China
| | - Chengxiang Shi
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University and, Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P. R. China
| | - Xiangwen Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University and, Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P. R. China
| | - Ji-Jun Zou
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University and, Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P. R. China
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21
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Isotypic heterojunction based on Fe-doped and terephthalaldehyde-modified carbon nitride for improving photocatalytic degradation with simultaneous hydrogen production. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.01.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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22
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Preparation, Characterization of Graphitic Carbon Nitride Photo-Catalytic Nanocomposites and Their Application in Wastewater Remediation: A Review. CRYSTALS 2021. [DOI: 10.3390/cryst11070723] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Energy crisis and environmental pollution are the major problems of human survival and development. Photocatalytic technology can effectively use solar energy and is prospective to solve the above-mentioned problems. Carbon nitride is a two-dimensional polymer material with a graphite-like structure. It has good physical and chemical stabilities, unique chemical and electronic energy band structures, and is widely used in the field of photocatalysis. Graphitic carbon nitride has a conjugated large π bond structure, which is easier to be modified with other compounds. thereby the surface area and visible light absorption range of carbon nitride-based photocatalytic composites can be insignificantly increased, and interface electron transmission and corresponding photogenerated carriers separation of streams are simultaneously promoted. Therefore, the present study systematically introduced the basic catalytic principles, preparation and modification methods, characterization and calculation simulation of carbon nitride-based photocatalytic composite materials, and their application in wastewater treatment. We also summarized their application in wastewater treatment with the aid of artificial intelligence tools. This review summarized the frontier technology and future development prospects of graphite phase carbon nitride photocatalytic composites, which provide a theoretical reference for wastewater purification.
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23
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Liu X, Chen W, Wang W, Jiao Z. Synergetic polarization effect of protonation and Fe-doping on g-C 3N 4 with enhanced photocatalytic activity. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01096d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The local polarization electric field resulting from protonation and Fe-doping in g-C3N4 can be formed, thus highly facilitating the separation and transport of charge carriers and boosting the photocatalytic activity.
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Affiliation(s)
- Xiaogang Liu
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, Henan 464000, P. R. China
| | - Wenjie Chen
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, Henan 464000, P. R. China
| | - Wei Wang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan 750021, P. R. China
| | - Zhengbo Jiao
- Institute of Materials for Energy and Environment, and College of Material Science and Engineering, Qingdao University, Qingdao 266071, China
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