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Lu S, Liu H. Molecular Doping on Carbon Nitride for Efficient Photocatalytic Hydrogen Production. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:13331-13338. [PMID: 38872351 DOI: 10.1021/acs.langmuir.4c01115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
Molecular doping is an innovative approach to modify the electronic configuration of carbon nitride (CN) photocatalysts, enhancing visible light absorption and optimizing the recombination of electron-hole pairs in photocatalytic H2 generation. Unlike the conventional heteroatom incorporation strategy, molecular doping offers a more effective means of structure optimization and conjugated framework. This Perspective studies recent advancements in benzene-ring doping for CN, emphasizing the correlation between structure and photocatalytic activity. The advantages and disadvantages of molecular doping in CN are thoroughly demonstrated, underscoring the importance of utilizing molecular doping to fine-tune both electronic and physical structures for enhanced photocatalytic efficacy. Insights are provided on strategies to address limitations and explore new prospects in the field of molecular doping methodologies.
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Affiliation(s)
- Shun Lu
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Hong Liu
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
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2
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Yong XY, Ji YX, Yang QW, Li B, Cheng XL, Zhou J, Zhang XY. Fe-doped g-C 3N 4 with duel active sites for ultrafast degradation of organic pollutants via visible-light-driven photo-Fenton reaction: Insight into the performance, kinetics, and mechanism. CHEMOSPHERE 2024; 351:141135. [PMID: 38215827 DOI: 10.1016/j.chemosphere.2024.141135] [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: 11/07/2023] [Revised: 12/29/2023] [Accepted: 01/03/2024] [Indexed: 01/14/2024]
Abstract
The photo-Fenton process provides a sustainable and cost-effective strategy for removing refractory organic contaminants in wastewater. Herein, a high-efficient Fe-doped g-C3N4 photocatalyst (Fe@CN10) with a unique 3D porous mesh structure was prepared by one-pot thermal polymerization for ultrafast degradation of azo dyes, antibiotics, and phenolic acids in heterogeneous photo-Fenton systems under visible light irradiation. Fe@CN10 exhibited a synergy between adsorption-degradation processes due to the co-existence of Fe3C and Fe3N active sites. Specifically, Fe3C acted as an adsorption site for pollutant and H2O2 molecules, while Fe3N acted as a photocatalytic active site for the high-efficient degradation of MO. Resultingly, Fe@CN10 showed a photocatalytic degradation rate of MO up to 140.32 mg/L min-1. The dominant ROS contributed to the removal of MO in the photo-Fenton pathway was hydroxyl radical (•OH). Surprisingly, as the key reactive species, singlet oxygen (1O2) generated from superoxide radical (•O2-) also efficiently attacked MO in a photo-self-Fenton pathway. Additionally, sponge/Fe@CN10 was prepared and filled in the continuous flow reactors for nearly 100% degradation of MO over 150 h when treating artificial organic wastewater. This work provided a facile route to prepare highly-active Fe-doped photocatalysts and develop a green photocatalytic system for wastewater treatment in the future.
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Affiliation(s)
- Xiao-Yu Yong
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China; Bioenergy Research Institute, Nanjing Tech University, Nanjing, 211816, China.
| | - Yu-Xuan Ji
- Bioenergy Research Institute, Nanjing Tech University, Nanjing, 211816, China; School of Environmental Science and Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Qian-Wen Yang
- Bioenergy Research Institute, Nanjing Tech University, Nanjing, 211816, China; School of Environmental Science and Engineering, Nanjing Tech University, Nanjing, 211816, China; Jiangsu Environmental Engineering Technology Co., Ltd., Nanjing, 210041, China
| | - Biao Li
- Department of Environmental Engineering, Technical University of Denmark, DK-2800, Lyngby, Denmark
| | - Xiao-Long Cheng
- College of the Environment & Ecology, Xiamen University, Xiamen, 361102, China
| | - Jun Zhou
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China; Bioenergy Research Institute, Nanjing Tech University, Nanjing, 211816, China
| | - Xue-Ying Zhang
- Bioenergy Research Institute, Nanjing Tech University, Nanjing, 211816, China; School of Environmental Science and Engineering, Nanjing Tech University, Nanjing, 211816, China.
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3
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Momin ZH, Lingamdinne LP, Kulkarni R, Pal CAK, Choi YL, Koduru JR, Chang YY. Improving U(VI) retention efficiency and cycling stability of GCN-supported calcined-LDH composite: Mechanism insight and real water system applications. CHEMOSPHERE 2024; 346:140551. [PMID: 38303398 DOI: 10.1016/j.chemosphere.2023.140551] [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: 08/24/2023] [Revised: 10/18/2023] [Accepted: 10/25/2023] [Indexed: 02/03/2024]
Abstract
The synthesis and characterization of graphitic carbon nitride (GCN) and its composites with calcined layered double hydroxide (CLDH) were examined in this investigation. The goal was to assess these composites' maximum adsorption capacity (qmax) for U(VI) ions in wastewater. Several different characterization methodologies were utilized to examine the fabricated substances. These methods encompass X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The GCN-CLDH composite displayed enhanced adsorption ability towards U(VI) ions due to its high surface functionality. Langmuir adsorption isotherm analysis showed that more than 99% of U(VI) ions were adsorbed, with a qmax of 196.69 mg/g. The kinetics data exhibited a good fit for a pseudo-second-order (PSO) model. Adsorption mechanisms involving precipitation and surface complexation via Lewis's acid-base interactions were proposed. The application of the GCN-CLDH composite in groundwater demonstrated adsorption below the maximum permissible limit established by USEPA, indicating improved cycling stability. These observations underscore the capacity of the GCN-CLDH composite's proficiency in adsorbing U(VI) aqueous solutions containing radioactive metals.
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Affiliation(s)
- Zahid Husain Momin
- Department of Environmental Engineering, Kwangwoon University, Seoul, 139-701, Republic of Korea
| | | | - Rakesh Kulkarni
- Department of Environmental Engineering, Kwangwoon University, Seoul, 139-701, Republic of Korea
| | | | - Yu-Lim Choi
- Department of Environmental Engineering, Kwangwoon University, Seoul, 139-701, Republic of Korea
| | - Janardhan Reddy Koduru
- Department of Environmental Engineering, Kwangwoon University, Seoul, 139-701, Republic of Korea.
| | - Yoon-Young Chang
- Department of Environmental Engineering, Kwangwoon University, Seoul, 139-701, Republic of Korea.
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4
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Meng J, Zhang X, Yang G, Qin L, Pan Y, Guo Y. Porous cyclopentadiene unit-incorporated graphitic carbon nitride nanosheets for efficient photocatalytic oxidation of recalcitrant organic micropollutants in wastewater. JOURNAL OF HAZARDOUS MATERIALS 2023; 460:132365. [PMID: 37639791 DOI: 10.1016/j.jhazmat.2023.132365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/07/2023] [Accepted: 08/20/2023] [Indexed: 08/31/2023]
Abstract
For the purpose of searching for efficient photocatalysts to deal with recalcitrant organic micropollutants in wastewater, here an in-situ supramolecule self-assembly-thermal polymerization strategy is developed to prepare a series of porous cyclopentadiene (CPD) unit-incorporated g-C3N4 ultrathin nanosheets (CCPD-g-C3N4). The CCPD-g-C3N4 demonstrate CPD unit doping level-dependent and remarkably enhanced visible-light photocatalytic oxidation efficiency towards two organic micropollutants, acetaminophen and methylparaben, in which the optimized CCPD-g-C3N4-2 shows 6.1 and 3.5 times higher acetaminophen and methylparaben degradation rate than bulk g-C3N4; moreover, CCPD-g-C3N4-2 is still robust and efficient in the treatment of five mixed organic micropollutants in pharmaceutical wastewater, and the satisfactory micropollutant removal efficiency is obtained in a wide pH window and the presence of high concentrations of inorganic anions and cations as well as dissolved organic matters. Theoretical calculation combined with experimental test reveal that CCPD-g-C3N4 can significantly reduce ecological risk of the target pollutant after the photocatalytic degradation reaction. Such enhanced photocatalytic oxidation efficiency is dominated by the accelerated charge carrier separation dynamics and extended visible-light response region due to the incorporation of CPD units, which finally lead to the generation of abundant reactive oxygen species to degrade and mineralize target micropollutants efficiently.
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Affiliation(s)
- Jiaqi Meng
- School of Environment, Northeast Normal University, 2555 Jingyue Street, Changchun 130117, PR China
| | - Xueyan Zhang
- School of Environment, Northeast Normal University, 2555 Jingyue Street, Changchun 130117, PR China
| | - Guang Yang
- School of Environment, Northeast Normal University, 2555 Jingyue Street, Changchun 130117, PR China
| | - Lang Qin
- School of Environment, Northeast Normal University, 2555 Jingyue Street, Changchun 130117, PR China
| | - Yue Pan
- School of Environment, Northeast Normal University, 2555 Jingyue Street, Changchun 130117, PR China
| | - Yihang Guo
- School of Environment, Northeast Normal University, 2555 Jingyue Street, Changchun 130117, PR China.
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5
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Yi S, Li Y, Sun Z, Li S, Gao L. Z-Scheme ZnV 2O 4/g-C 3N 4 Heterojunction Catalyst Produced by the One-Pot Method for the Degradation of Tetracycline under Visible Light. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c03604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Siyuan Yi
- College of Environmental Science and Engineering, Taiyuan University of Technology, 79 Yingze Street, Wanbailin District, Taiyuan030024, China
| | - Yuzhen Li
- College of Environmental Science and Engineering, Taiyuan University of Technology, 79 Yingze Street, Wanbailin District, Taiyuan030024, China
| | - Zhaoxin Sun
- College of Environmental Science and Engineering, Taiyuan University of Technology, 79 Yingze Street, Wanbailin District, Taiyuan030024, China
| | - Shuo Li
- College of Environmental Science and Engineering, Taiyuan University of Technology, 79 Yingze Street, Wanbailin District, Taiyuan030024, China
| | - Lizhen Gao
- College of Environmental Science and Engineering, Taiyuan University of Technology, 79 Yingze Street, Wanbailin District, Taiyuan030024, China
- School of Mechanical Engineering, University of Western Australia, 35 Stirling Highway, Crawley, WA6009, Australia
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6
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Enhanced carrier transport and visible light response in CA-β-CD/g-C3N4/Ag2O 2D/0D heterostructures functionalized with cyclodextrin for effective organic degradation. KOREAN J CHEM ENG 2022. [DOI: 10.1007/s11814-022-1193-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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7
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Nordin NA, Mohamed MA, Salehmin MNI, Mohd Yusoff SF. Photocatalytic active metal–organic framework and its derivatives for solar-driven environmental remediation and renewable energy. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214639] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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8
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Torres-Pinto A, Silva CG, Faria JL, Silva AM. The effect of precursor selection on the microwave-assisted synthesis of graphitic carbon nitride. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.08.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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9
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A review on synthesis, modification method, and challenges of light-driven H2 evolution using g-C3N4-based photocatalyst. Adv Colloid Interface Sci 2022; 307:102722. [DOI: 10.1016/j.cis.2022.102722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 06/05/2022] [Accepted: 06/17/2022] [Indexed: 11/19/2022]
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10
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Wang H, Zhang C, Kong L, Wang Y, Zhang S, Zhang X, Ding J, Ren N. Solar light photocatalytic transformation of heptachlorobiphenyl (PCB 180) using g-C 3N 4 based magnetic porous photocatalyst. JOURNAL OF HAZARDOUS MATERIALS 2022; 427:128105. [PMID: 34973576 DOI: 10.1016/j.jhazmat.2021.128105] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 06/14/2023]
Abstract
A novel porous core-shell magnetic β-cyclodextrin/graphitic carbon nitride photocatalyst (Mβ-CD/GCN) was synthesized and employed in a solar light driven catalytic system for the degradation of polychlorinated biphenyls (PCBs). The Mβ-CD/GCN display superior photocatalytic performance on account of porous structure and ultrathin GCN nanosheets design, the former improves the utilization of visible light by multiple scattering and reflection of incident light, and the latter accelerates electron transfer. The ultrahigh specific surface area (1255 m2 g-1) of Mβ-CD/GCN provided a large number of active sites for adsorption and degradation of the target pollution. The pseudo-first order reaction rate constant (kobs) for the degradation of PCB180 by Mβ-CD/GCN was 0.021 min-1, which improved 3.23 times than the bulk GCN. Additionally, the effects of various reaction parameters and water matrices were studied on the degradation of PCB180. Three possible degradation pathways and mechanism of PCB180 were speculated according to the identification of reaction intermediates and detection of reactive species. The solar light driven Mβ-CD/GCN catalytic technology is a promising method not only for the control of persistent organic pollutants (POPs), but also the catalyst could be recovered and reused through simple magnetic separation.
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Affiliation(s)
- Hui Wang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem, Harbin Institute of Technology, Harbin 150090, China
| | - Chenyu Zhang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Lingru Kong
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Yi Wang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Sijia Zhang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Xiulian Zhang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Jie Ding
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
| | - Nanqi Ren
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
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11
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Huo T, Deng Q, Yu F, Wang G, Xia Y, Li H, Hou W. Ion-Induced Synthesis of Crystalline Carbon Nitride Ultrathin Nanosheets from Mesoporous Melon for Efficient Photocatalytic Hydrogen Evolution with Synchronous Highly Selective Oxidation of Benzyl Alcohol. ACS APPLIED MATERIALS & INTERFACES 2022; 14:13419-13430. [PMID: 35275489 DOI: 10.1021/acsami.2c01522] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Crystalline carbon nitride (CCN) with a poly(heptazine imide) structure is efficient in photocatalytic hydrogen evolution (PHE), but synthesis of CCN ultrathin nanosheets (CCNuns) and their use in PHE with selective organic oxidation are still rare. Herein, CCNuns with Na+ doping are prepared using NaCl as the ion-induction and templating agent and mesoporous melon as the feedstock, exhibiting efficient synchronous PHE and benzyl alcohol oxidation to benzaldehyde, with an apparent quantum yield of 10.5% at 420 nm and a visible light PHE rate that is 94.3 times that of bulk polymeric carbon nitride (PCN). The selectivity of benzaldehyde formation (90.5%) is also much higher than that of PCN (40.7%). Interestingly, this selectivity increases gradually with increasing light wavelengths. The high photoactivity of CCNuns originates from their ultrathinness and Na+ doping, which considerably enhance the photogenerated charge separation. This work opens up an avenue for the synthesis of CCNuns and extends their application.
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Affiliation(s)
- Tingting Huo
- National Engineering Research Center for Colloidal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
| | - Quanhua Deng
- National Engineering Research Center for Colloidal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
| | - Fei Yu
- National Engineering Research Center for Colloidal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
| | - Guoan Wang
- National Engineering Research Center for Colloidal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
| | - Yuguo Xia
- National Engineering Research Center for Colloidal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
| | - Haiping Li
- National Engineering Research Center for Colloidal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
| | - Wanguo Hou
- National Engineering Research Center for Colloidal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
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12
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Fernandes RA, Sampaio MJ, Faria JL, Silva CG. Synthesis of Vitamin B3 through a Heterogeneous Photocatalytic Approach Using Metal-Free Carbon Nitride-Based Catalysts. Molecules 2022; 27:1295. [PMID: 35209082 PMCID: PMC8878246 DOI: 10.3390/molecules27041295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 01/26/2022] [Accepted: 02/08/2022] [Indexed: 11/17/2022] Open
Abstract
Vitamin B3 (nicotinic acid, VB3) was synthesized through the photocatalytic oxidation of 3-pyridinemethanol (3PM) under visible-light-emitting diode (LED) irradiation using metal-free graphitic carbon nitride (GCN) - based materials. A bulk (GCN) material was prepared by a simple thermal treatment using dicyandiamide as the precursor. A post-thermal treatment under static air and nitrogen flow was employed to obtain the GCN-T and GCN-T-N materials, respectively. The conditions adopted during the post-treatment revealed differences in the resulting materials' morphological, electronic, and optical properties. The post-treated photocatalysts revealed an enhanced efficiency in the oxidation of 3PM into VB3, with the GCN-T-N photocatalyst being the best-performing material. The defective surface, reduced crystallinity, and superior photoabsorption of GCN-T-N account for this material's improved performance in the production of VB3. Nevertheless, the presence of nitrogen vacancies in the carbon nitride structure and, consequently, the creation of mid-gap states also accounts to its highly oxidative ability. The immobilization of GCN-T-N in sodium alginate hydrogel was revealed as a promising strategy to produce VB3, avoiding the need for the photocatalyst separation step. Concerning the mechanism of synthesis of VB3 through the photocatalytic oxidation of 3PM, it was possible to identify the presence of 3-pyridinecarboxaldehyde (3PC) as the intermediary product.
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Affiliation(s)
- Raquel A. Fernandes
- ALiCE–Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; (R.A.F.); (M.J.S.); (J.L.F.)
- LSRE-LCM – Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto s/n, 4200-465 Porto, Portugal
| | - Maria J. Sampaio
- ALiCE–Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; (R.A.F.); (M.J.S.); (J.L.F.)
- LSRE-LCM – Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto s/n, 4200-465 Porto, Portugal
| | - Joaquim L. Faria
- ALiCE–Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; (R.A.F.); (M.J.S.); (J.L.F.)
- LSRE-LCM – Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto s/n, 4200-465 Porto, Portugal
| | - Cláudia G. Silva
- ALiCE–Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; (R.A.F.); (M.J.S.); (J.L.F.)
- LSRE-LCM – Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto s/n, 4200-465 Porto, Portugal
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13
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Wang T, Bai Z, Wei W, Hou F, Guo W, Wei A. β-Cyclodextrin-Derivative-Functionalized Graphene Oxide/Graphitic Carbon Nitride Composites with a Synergistic Effect for Rapid and Efficient Sterilization. ACS APPLIED MATERIALS & INTERFACES 2022; 14:474-483. [PMID: 34978185 DOI: 10.1021/acsami.1c24047] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The nonselectivity of phototherapy and the hydrophobicity of phototherapy agents limit their application in the treatment of antibiotic-resistant bacteria. In this work, β-cyclodextrin-derivative-functionalized graphene oxide (GO)/graphitic carbon nitride (g-C3N4) antibacterial materials (CDM/GO/CN) were designed and synthesized. CN is used as a photosensitizer for photodynamic therapy (PDT) and GO as a photothermal agent for photothermal therapy (PTT). In addition, the supramolecular host-guest complex on the substrate can not only increase the inherent water solubility of the substrate and reduce the aggregation of the photosensitizer/photothermal agent but also manipulate the interaction between the photosensitizer/photothermal agent and bacteria to capture specific bacteria. The hyperthermia caused by PTT denatures proteins on the cell membrane, allowing reactive oxygen species (ROS) to enter the cell better and kill bacteria. The specific capture of Escherichia coli CICC 20091 by mannose significantly improves the sterilization efficiency and reduces side effects. The synergistic antibacterial agent shows excellent antibacterial efficacy of over 99.25% against E. coli CICC 20091 after 10 min of 635 + 808 nm dual-light irradiation. Moreover, cell proliferation experiments show that the composite material has good biocompatibility, expected to have applications in bacterial infections.
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Affiliation(s)
- Ting Wang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu Key Laboratory for Biosensors, Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Zhenlong Bai
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu Key Laboratory for Biosensors, Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Wei Wei
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu Key Laboratory for Biosensors, Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Fengming Hou
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu Key Laboratory for Biosensors, Nanjing University of Posts & Telecommunications, Nanjing 210023, China
- Nantong Institute of Nanjing University of Posts and Telecommunications Co.,Ltd., Nantong 226001, China
| | - Wei Guo
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu Key Laboratory for Biosensors, Nanjing University of Posts & Telecommunications, Nanjing 210023, China
- Kunshan Innovation Institute of Xidian University, Suzhou 215316, China
| | - Ang Wei
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu Key Laboratory for Biosensors, Nanjing University of Posts & Telecommunications, Nanjing 210023, China
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14
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Yu X, Ng SF, Putri LK, Tan LL, Mohamed AR, Ong WJ. Point-Defect Engineering: Leveraging Imperfections in Graphitic Carbon Nitride (g-C 3 N 4 ) Photocatalysts toward Artificial Photosynthesis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2006851. [PMID: 33909946 DOI: 10.1002/smll.202006851] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 02/10/2021] [Indexed: 06/12/2023]
Abstract
Graphitic carbon nitride (g-C3 N4 ) is a kind of ideal metal-free photocatalysts for artificial photosynthesis. At present, pristine g-C3 N4 suffers from small specific surface area, poor light absorption at longer wavelengths, low charge migration rate, and a high recombination rate of photogenerated electron-hole pairs, which significantly limit its performance. Among a myriad of modification strategies, point-defect engineering, namely tunable vacancies and dopant introduction, is capable of harnessing the superb structural, textural, optical, and electronic properties of g-C3 N4 to acquire an ameliorated photocatalytic activity. In view of the burgeoning development in this pacey field, a timely review on the state-of-the-art advancement of point-defect engineering of g-C3 N4 is of vital significance to advance the solar energy conversion. Particularly, insights into the intriguing roles of point defects, the synthesis, characterizations, and the systematic control of point defects, as well as the versatile application of defective g-C3 N4 -based nanomaterials toward photocatalytic water splitting, carbon dioxide reduction and nitrogen fixation will be presented in detail. Lastly, this review will conclude with a balanced perspective on the technical and scientific hindrances and future prospects. Overall, it is envisioned that this review will open a new frontier to uncover novel functionalities of defective g-C3 N4 -based nanostructures in energy catalysis.
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Affiliation(s)
- Xinnan Yu
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Selangor, Darul Ehsan, 43900, Malaysia
| | - Sue-Faye Ng
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Selangor, Darul Ehsan, 43900, Malaysia
- Center of Excellence for NaNo Energy & Catalysis Technology (CONNECT), Xiamen University Malaysia, Selangor, Darul Ehsan, 43900, Malaysia
| | - Lutfi Kurnianditia Putri
- Low Carbon Economy (LCE) Research Group, School of Chemical Engineering, Universiti Sains Malaysia, Nibong Tebal, Pulau, Pinang, 14300, Malaysia
| | - Lling-Lling Tan
- Multidisciplinary Platform of Advanced Engineering, Chemical Engineering Discipline, School of Engineering, Monash University, Selangor, Darul Ehsan, 47500, Malaysia
| | - Abdul Rahman Mohamed
- Low Carbon Economy (LCE) Research Group, School of Chemical Engineering, Universiti Sains Malaysia, Nibong Tebal, Pulau, Pinang, 14300, Malaysia
| | - Wee-Jun Ong
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Selangor, Darul Ehsan, 43900, Malaysia
- Center of Excellence for NaNo Energy & Catalysis Technology (CONNECT), Xiamen University Malaysia, Selangor, Darul Ehsan, 43900, Malaysia
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
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15
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Hartley GO, Martsinovich N. Computational design of graphitic carbon nitride photocatalysts for water splitting. Faraday Discuss 2021; 227:341-358. [PMID: 33300894 DOI: 10.1039/c9fd00147f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of structures based on graphitic carbon nitride (g-C3N4), a layered material composed of linked carbon-nitrogen heterocycles arranged in a plane, were investigated by density functional theory calculations. g-C3N4 is a semiconductor that absorbs UV light and visible light at the blue end of the visible spectrum, and is widely studied as a photocatalyst for water splitting; however, its photocatalytic efficiency is limited by its poor light-harvesting ability and low charge mobilities. Modifications to the g-C3N4 structure could greatly improve its optical and electronic properties and its photocatalytic efficiency. In this work, the g-C3N4 structure was modified by replacing the nitrogen linker with heteroatoms (phosphorus, boron) or aromatic groups (benzene, s-triazine and substituted benzenes). Two-dimensional (2D) sheets and three-dimensional (3D) multilayer structures with different stacking types were modelled. Several new structures were predicted to have electronic properties superior to g-C3N4 for use as water splitting photocatalysts. In particular, introduction of phosphorus, benzene and s-triazine groups led to band gaps smaller than in the standard g-C3N4 (down to 2.4 eV, corresponding to green light). Doping with boron in the linker positions dramatically reduced the band gap (to 1.6 eV, corresponding to red light); the doped material has the valence band position suitable for water oxidation. Our computational study shows that chemical modification of g-C3N4 is a powerful method to tune this material's electronic properties and improve its photocatalytic activity.
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Affiliation(s)
- Gareth O Hartley
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, S3 7HF, UK.
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16
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Gu Q, Jiang P, Shen Y, Leng Y, Wai PT, Zhang K, Haryono A. Synthesis of coralloid carbon nitride polymers and photocatalytic selective oxidation of benzyl alcohol. NANOTECHNOLOGY 2021; 32:235602. [PMID: 33621964 DOI: 10.1088/1361-6528/abe903] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 02/23/2021] [Indexed: 06/12/2023]
Abstract
Polymeric carbon nitride (C3N4) is currently the most potential nonmetallic photocatalyst, but it suffers from low catalytic activity due to rapid electron-hole recombination behavior and low specific surface area. The morphology control of C3N4is one of the effective methods used to achieve higher photocatalytic performance. Here, bulk, lamellar and coralloid C3N4were synthesized using different chemical methods. The as-prepared coralloid C3N4has a higher specific surface area (123.7 m2 · g-1) than bulk (5.4 m2 · g-1) and lamellar C3N4(2.8 m2 · g-1), thus exhibiting a 3.15- and 2.59-fold higher photocatalytic efficiency for the selective oxidation of benzyl alcohol than bulk and lamellar C3N4, respectively. Optical characterizations of the photocatalysts suggest that coralloid C3N4can effectively capture electrons and accelerate carrier separation, which is caused by the presence of more nitrogen vacancies. Furthermore, it is demonstrated that superoxide radicals (·O2-) and holes (h+) play major roles in the photocatalytic selective oxidation of benzyl alcohol using C3N4as a photocatalyst.
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Affiliation(s)
- Qian Gu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, People's Republic of China
| | - Pingping Jiang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, People's Republic of China
| | - Yirui Shen
- College of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo 315211, People's Republic of China
| | - Yan Leng
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, People's Republic of China
| | - Phyu Thin Wai
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, People's Republic of China
| | - Kai Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, People's Republic of China
| | - Agus Haryono
- Research Center for Chemistry, Indonesian Institute of Science, Serpong 15314, Indonesia
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17
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Zhao C, Ran F, Dai L, Li C, Zheng C, Si C. Cellulose-assisted construction of high surface area Z-scheme C-doped g-C 3N 4/WO 3 for improved tetracycline degradation. Carbohydr Polym 2021; 255:117343. [PMID: 33436186 DOI: 10.1016/j.carbpol.2020.117343] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/24/2020] [Accepted: 10/28/2020] [Indexed: 01/26/2023]
Abstract
The preparation of heteroatom doping heterojunction photocatalysts with nontoxic carbonaceous materials and simple method still remains a challenge. Herein, ternary Z-scheme C-doped graphitic carbon nitride/tungsten oxide (C-doped g-C3N4/WO3) was successfully fabricated via the hydrothermal impregnation with cellulose nanocrystal, high-temperature calcination, and electrostatic self-assembly with WO3 nanocuboids in turns. Benefiting from the porous structure, high specific areas (57.20 m2 g-1), C-substitution, and the formation of Z-scheme heterojunction, the resulting photocatalyst exhibited narrower band-gap, enhanced visible-light absorption and separation of charge carrier, faster interfacial charge transfer, good oxidation/reduction capacities, and thus improved the photocatalytic activity performance. As such, this investigation will provide an effective route for not only incorporating semiconductors and heteroatoms into g-C3N4 but also developing more heterojunction with markedly improved photocatalytic performance.
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Affiliation(s)
- Cong Zhao
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Fangli Ran
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Lin Dai
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Chenyu Li
- Department of Environment and Health, Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China.
| | - Chunyang Zheng
- Robustnique Co. Ltd. Block C, Phase II, Pioneer Park, Lanyuan Road, Tianjin 300384, China.
| | - Chuanling Si
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, China.
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18
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Gu Q, Jiang PP, Shen Y, Zhang K, Wai PT, Haryono A. Lamellar porous mo-modified carbon nitride polymers photocatalytic epoxidation of olefins. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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19
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Zhao W, Hao N, Zhang G, Ma A, Chen W, Zhou H, Yang D, Xu BB, Kong J. In situ Carbon Modification of g-C3N4 from Urea co-Crystal with Enhanced Photocatalytic Activity Towards Degradation of Organic Dyes Under Visible Light. Chem Res Chin Univ 2020. [DOI: 10.1007/s40242-020-0073-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Lopes JC, Sampaio MJ, Fernandes RA, Lima MJ, Faria JL, Silva CG. Outstanding response of carbon nitride photocatalysts for selective synthesis of aldehydes under UV-LED irradiation. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.03.050] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Abdelhafeez IA, Chen J, Zhou X. Scalable one-step template-free synthesis of ultralight edge-functionalized g-C3N4 nanosheets with enhanced visible light photocatalytic performance. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117085] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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22
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Wu M, Ding T, Wang Y, Zhao W, Xian H, Tian Y, Zhang T, Li X. Rational construction of plasmon Au assisted ferroelectric-BaTiO3/Au/g-C3N4 Z-scheme system for efficient photocatalysis. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.04.061] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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23
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Fernandes RA, Sampaio MJ, Faria JL, Silva CG. Aqueous solution photocatalytic synthesis of p-anisaldehyde by using graphite-like carbon nitride photocatalysts obtained via the hard-templating route. RSC Adv 2020; 10:19431-19442. [PMID: 35515447 PMCID: PMC9054040 DOI: 10.1039/d0ra02746d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 05/11/2020] [Indexed: 11/21/2022] Open
Abstract
Graphite-like carbon nitride (GCN)-based materials were developed via the hard-templating route, using dicyandiamide as the GCN precursor and silica templates. That resulted in urchin-like GCN (GCN-UL), 3D ordered macroporous GCN (GCN-OM) and mesoporous GCN (GCN-MP). The introduction of silica templates during GCN synthesis produced physical defects on its surface, as confirmed by SEM analysis, increasing their specific surface area. A high amount of nitrogen vacancies is present in modified catalysts (revealed by XPS measurements), which can be related to an increase in the reactive sites available to catalyse redox reactions. The textural and morphological modifications induced in GCN an enhanced light absorption capacity and reduced electron/hole recombination rate, contributing to its improved photocatalytic performance. In the photocatalytic conversion of p-anisyl alcohol to p-anisaldehyde in deoxygenated aqueous solutions under UV-LED irradiation, the GCN-UL was the best photocatalyst reaching 60% yield at 64% conversion for p-anisaldehyde production after 240 min of reaction. Under oxygenated conditions (air), the process efficiency was increased to 79% yield at 92% conversion only after 90 min reaction. The GCN-based photocatalyst kept its performance when using visible-LED radiation under air atmosphere. Trapping of photogenerated holes and radicals by selective scavengers showed that under deoxygenated conditions, holes played the primary role in the p-anisaldehyde synthesis. Under oxygenated conditions, the process is governed by the effect of reactive oxygen species, namely superoxide radicals, with a significant contribution from holes.
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Affiliation(s)
- Raquel A Fernandes
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto Rua Dr Roberto Frias s/n 4200-465 Porto Portugal
| | - Maria J Sampaio
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto Rua Dr Roberto Frias s/n 4200-465 Porto Portugal
| | - Joaquim L Faria
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto Rua Dr Roberto Frias s/n 4200-465 Porto Portugal
| | - Cláudia G Silva
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto Rua Dr Roberto Frias s/n 4200-465 Porto Portugal
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24
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Fernandes RA, Sampaio MJ, Dražić G, Faria JL, Silva CG. Efficient removal of parabens from real water matrices by a metal-free carbon nitride photocatalyst. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 716:135346. [PMID: 31843308 DOI: 10.1016/j.scitotenv.2019.135346] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 10/31/2019] [Accepted: 11/01/2019] [Indexed: 06/10/2023]
Abstract
Metal-free graphite-like carbon nitride (GCN-500) was obtained by thermal post-treatment of bulk polymeric carbon nitride at 500 °C. The catalyst was thoroughly characterized by morphological, optical and textural analysis techniques. The efficiency of GCN-500 was evaluated under visible (λexc = 417 nm) LED excitation for the photocatalytic degradation of methyl-, ethyl- and propyl-paraben in different water matrices either isolated or in a mixture of the three compounds. The GCN-500 proved to be more efficient than the benchmark TiO2 P25, with complete conversion of the individual parabens within 20 min of irradiation, contrasting with 120 min needed for total degradation using TiO2. Experiments in the presence of selected scavengers confirmed the high importance of superoxide radicals in the photocatalytic oxidation of parabens using GCN-500. The effect of the nature of the aqueous matrix in the kinetics of the photocatalytic process was assessed using ultrapure, tap and river waters spiked with a mixture of the three parabens. Although still very efficient, the complexity of the real water samples turned the degradation process slower due to the presence of other components such as ions and dissolved organic matter. GCN-500 proved to be stable in a continuous-flow system using GCN-500 coated glass rings (GCN-500-GR) to remove MP, EP and PP from real water matrices.
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Affiliation(s)
- Raquel A Fernandes
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
| | - Maria J Sampaio
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
| | - Goran Dražić
- Department of Materials Chemistry, National Institute of Chemistry, Hajdrihova 19, Ljubljana, Slovenia
| | - Joaquim L Faria
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
| | - Cláudia G Silva
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal.
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25
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Jin Z, Wang H, Ma Q. High Electron Conductivity of Ni/Ni3C Nanoparticles Anchored on C-Rich Graphitic Carbon Nitride for Obviously Improving Hydrogen Generation. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b06462] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhiliang Jin
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan 750021, PR China
- Ningxia Key Laboratory of Solar Chemical Conversion Technology, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, P. R.China
| | - Haiyu Wang
- Ningxia Key Laboratory of Solar Chemical Conversion Technology, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, P. R.China
| | - Qingxiang Ma
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan 750021, PR China
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26
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Li C, Naghadeh SB, Guo L, Xu K, Zhang JZ, Wang H. Cellulose as Sacrificial Biomass for Photocatalytic Hydrogen Evolution over One‐dimensional CdS Loaded with NiS
2
as a Cocatalyst. ChemistrySelect 2020. [DOI: 10.1002/slct.201904840] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Chunhe Li
- Laboratory of Low-dimensional Carbon Materials and Department of PhysicsShaoxing University Shaoxing 312000 China
| | - Sara Bonabi Naghadeh
- Department of Chemistry and BiochemistryUniversity of California, Santa Cruz California 95064 United States
| | - Liping Guo
- College of Biological, Chemical Science and EngineeringJiaxing University Jiaxing 314001 China
| | - Ke Xu
- Department of Chemistry and BiochemistryUniversity of California, Santa Cruz California 95064 United States
| | - Jin Zhong Zhang
- Department of Chemistry and BiochemistryUniversity of California, Santa Cruz California 95064 United States
| | - Hongmei Wang
- College of Biological, Chemical Science and EngineeringJiaxing University Jiaxing 314001 China
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27
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Sadjadi S, Ghoreyshi Kahangi F, Heravi MM. Pd stabilized on nanocomposite of halloysite and β-cyclodextrin derived carbon: An efficient catalyst for hydrogenation of nitroarene. Polyhedron 2020. [DOI: 10.1016/j.poly.2019.114210] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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28
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Sadjadi S, Koohestani F, Léger B, Monflier E. Palladated cyclodextrin and halloysite containing polymer and its carbonized form as efficient hydrogenation catalysts. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Samahe Sadjadi
- Gas Conversion Department, Faculty of PetrochemicalsIran polymer and Petrochemicals Institute PO Box 14975‐112 Tehran Iran
| | - Fatemeh Koohestani
- Gas Conversion Department, Faculty of PetrochemicalsIran polymer and Petrochemicals Institute PO Box 14975‐112 Tehran Iran
| | - Bastien Léger
- Univ. Artois, CNRS, Centrale Lille, ENSCL, Univ. Lille UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS), F‐62300 Lens France
| | - Eric Monflier
- Univ. Artois, CNRS, Centrale Lille, ENSCL, Univ. Lille UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS), F‐62300 Lens France
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29
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Carbon doped honeycomb-like graphitic carbon nitride for photocatalytic hydrogen production. J Colloid Interface Sci 2019; 552:728-734. [DOI: 10.1016/j.jcis.2019.05.106] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 05/29/2019] [Accepted: 05/31/2019] [Indexed: 12/11/2022]
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30
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Liu J, Wei Z, Fang W, Jiang Z, Shangguan W. Enhanced Photocatalytic Hydrogen Evolution of the Hydrogenated Deficient g‐C
3
N
4
via Surface Hydrotreating. ChemCatChem 2019. [DOI: 10.1002/cctc.201900284] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Junying Liu
- Research Center for Combustion and Environment TechnologyShanghai Jiao Tong University Shanghai 200240 P.R. China
- Center of Hydrogen ScienceShanghai Jiao Tong University Shanghai 200240 P.R. China
| | - Zhidong Wei
- Research Center for Combustion and Environment TechnologyShanghai Jiao Tong University Shanghai 200240 P.R. China
- Center of Hydrogen ScienceShanghai Jiao Tong University Shanghai 200240 P.R. China
| | - Wenjian Fang
- Research Center for Combustion and Environment TechnologyShanghai Jiao Tong University Shanghai 200240 P.R. China
| | - Zhi Jiang
- Research Center for Combustion and Environment TechnologyShanghai Jiao Tong University Shanghai 200240 P.R. China
- Center of Hydrogen ScienceShanghai Jiao Tong University Shanghai 200240 P.R. China
| | - Wenfeng Shangguan
- Research Center for Combustion and Environment TechnologyShanghai Jiao Tong University Shanghai 200240 P.R. China
- Center of Hydrogen ScienceShanghai Jiao Tong University Shanghai 200240 P.R. China
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31
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Zhang L, Jin Z, Lu H, Lin T, Ruan S, Zhao XS, Zeng YJ. Improving the Visible-Light Photocatalytic Activity of Graphitic Carbon Nitride by Carbon Black Doping. ACS OMEGA 2018; 3:15009-15017. [PMID: 31458167 PMCID: PMC6643869 DOI: 10.1021/acsomega.8b01933] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 10/30/2018] [Indexed: 06/01/2023]
Abstract
Hydrogen production by water splitting and the removal of aqueous dyes by using a catalyst and solar energy are an ideal future energy source and useful for environmental protection. Graphitic carbon nitride can be used as the photocatalyst with visible light irradiation. However, it typically suffers from the high recombination of carriers and low electrical conductivity. Here, we have developed a facile mix-thermal strategy to prepare carbon black-modified graphitic carbon nitrides, which possess high electrical conductivity, a wide adsorption range of visible light, and a low recombination rate of carriers. With the help of carbon black, highly crystallized graphitic carbon nitrides with built-in triazine and heptazine heterojunctions are obtained. Improved photocatalytic activities have been achieved in carbon black-modified graphitic carbon nitride. The dye removal rate can be three times faster than that of pristine graphitic carbon nitride and the photocatalytic H2 generation is 234 μmol h-1 g-1 under visible light irradiation.
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Affiliation(s)
- Luhong Zhang
- Shenzhen
Key Laboratory of Laser Engineering, Key Laboratory of Optoelectronic
Devices and System of Ministry of Education and Guangdong Province,
College of Optoelectronic Engineering, Shenzhen
University, Shenzhen 518060, China
- School
of Chemical Engineering, The University
of Queensland, Brisbane, QLD 4072, Australia
| | - Zhengyuan Jin
- Shenzhen
Key Laboratory of Laser Engineering, Key Laboratory of Optoelectronic
Devices and System of Ministry of Education and Guangdong Province,
College of Optoelectronic Engineering, Shenzhen
University, Shenzhen 518060, China
| | - Hao Lu
- School
of Chemical Engineering, The University
of Queensland, Brisbane, QLD 4072, Australia
| | - Tianquan Lin
- Department
of Materials Science and Engineering, Massachusetts
Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Shuangchen Ruan
- Shenzhen
Key Laboratory of Laser Engineering, Key Laboratory of Optoelectronic
Devices and System of Ministry of Education and Guangdong Province,
College of Optoelectronic Engineering, Shenzhen
University, Shenzhen 518060, China
| | - Xiu Song Zhao
- School
of Chemical Engineering, The University
of Queensland, Brisbane, QLD 4072, Australia
| | - Yu-Jia Zeng
- Shenzhen
Key Laboratory of Laser Engineering, Key Laboratory of Optoelectronic
Devices and System of Ministry of Education and Guangdong Province,
College of Optoelectronic Engineering, Shenzhen
University, Shenzhen 518060, China
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