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Cong X, Li A, Guo F, Qin H, Zhang X, Wang W, Xu W. Construction of CdS@g-C 3N 4 heterojunction photocatalyst for highly efficient degradation of gaseous toluene. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 913:169777. [PMID: 38176568 DOI: 10.1016/j.scitotenv.2023.169777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 12/12/2023] [Accepted: 12/28/2023] [Indexed: 01/06/2024]
Abstract
Exploring efficient photocatalysts for the degradation of VOCs under visible light is a challenge. CdS@g-C3N4 heterojunction photocatalytic materials were developed in this study using a microwave-assisted sol-gel process. CdS@g-C3N4(0.2) photocatalyzed the maximum degradation of gaseous toluene under visible light irradiation, and the time required to achieve the same degradation rate was reduced by 270 min when compared to pure CdS. The morphological characterization, photoelectric property analysis, and DFT calculations all verified that the CdS nanoparticles were uniformly disseminated on the surface of g-C3N4, and that the interfaces were closely contacted to form a heterojunction interface with a built-in field. This enhances charge transfer from CdS to g-C3N4 while successfully decreasing electron-hole pair recombination caused by light. Furthermore, the energy band structure was altered to absorb longer wavelengths of light and extend the absorption spectral range, improving the photocatalytic material's efficacy for broad-spectrum light such as sunshine. This paper proposes methods for predicting and optimizing the surface structure of catalysts, as well as developing high-performance multi-heterojunction photocatalysts for the degradation of indoor VOCs.
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Affiliation(s)
- Xinhang Cong
- School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China
| | - Anming Li
- School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China
| | - Feng Guo
- School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China.
| | - Haotong Qin
- School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China
| | - Xuehan Zhang
- School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China
| | - Wenzhuang Wang
- School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China
| | - Wenling Xu
- School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China
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2
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John A, Rajan MS, Thomas J. Synthesis of graphitic carbon nitride modified kaolin-carboxyl graphene for the degradation of pharmaceutical waste under sunlight. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:1442-1455. [PMID: 38040888 DOI: 10.1007/s11356-023-31258-1] [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: 03/17/2023] [Accepted: 11/22/2023] [Indexed: 12/03/2023]
Abstract
Graphitic carbon nitride modified with kaolin-carboxyl graphene (g-C3N4/KG) was successfully synthesized using urea as the precursor and was applied for the photocatalytic degradation of pharmaceutical compound, "cefepime." Structural and optical characteristics of g-C3N4/KG were analyzed using various characterization techniques such as FT-IR, XRD, TEM, SEM, EDX, TG, BET, DRS, and PL. The PL studies confirmed that g-C3N4/KG catalyst exhibits strong charge separation and electron flow, and enhanced visible light absorption capacity was revealed by DRS studies. Studies on the active radical species demonstrate that superoxide and hydroxy radicals play a major role in the photocatalytic degradation of cefepime and dye pollutants. g-C3N4/KG showed the complete removal MB and 85% of degradation of cefepime under solar light irradiation time of 75 min and 135 min, respectively. Additionally, possible mechanism for the breakdown of the antibiotic cefepime was presented, along with identification of the intermediates produced during the degradation process. The study demonstrates that this novel photocatalyst could be utilized to remove dyes as well as medical wastes from water under solar light.
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Affiliation(s)
- Anju John
- Research Department of Chemistry, Kuriakose Elias College, Mannanam, Kottayam, Kerala, 686561, India
| | - Mekha Susan Rajan
- Research Department of Chemistry, Kuriakose Elias College, Mannanam, Kottayam, Kerala, 686561, India
| | - Jesty Thomas
- Research Department of Chemistry, Kuriakose Elias College, Mannanam, Kottayam, Kerala, 686561, India.
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3
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Shahini E, Chaulagain N, Shankar K, Tang T. Predicting Free Energies of Exfoliation and Solvation for Graphitic Carbon Nitrides Using Machine Learning. ACS APPLIED MATERIALS & INTERFACES 2023; 15:53786-53801. [PMID: 37938813 DOI: 10.1021/acsami.3c09347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
As a metal-free and visible-light-responsive photocatalyst, graphitic carbon nitride (g-C3N4) has emerged as a new research hotspot and has attracted broad attention in the field of solar energy conversion and thin-film transistors. Liquid-phase exfoliation (LPE) is the best-known method for the synthesis of 2D g-C3N4 nanosheets. In LPE, bulk g-C3N4 is exfoliated in a solvent via high-shear mixing or sonication in order to produce a stable suspension of individual nanosheets. Two parameters of importance in gauging the performance of a solvent in LPE are the free energy required to exfoliate a unit area of layered materials into individual sheets in the solvent (ΔGexf) and the solvation free energy per unit area of a nanosheet (ΔGsol). While approximations for the free energies exist, they are shown in our previous work to be inaccurate and incapable of capturing the experimentally observed efficacy of LPE. Molecular dynamics (MD) simulations can provide accurate free-energy calculations, but doing so for every single solvent is time- and resource-consuming. Herein, machine learning (ML) algorithms are used to predict ΔGexf and ΔGsol for g-C3N4. First, a database for ΔGexf and ΔGsol is created based on a series of MD simulations involving 49 different solvents with distinct chemical structures and properties. The data set also includes values of critical descriptors for the solvents, including density, surface tension, dielectric constant, etc. Different ML methods are compared, accompanied by descriptor selection, to develop the most accurate model for predicting ΔGexf and ΔGsol. The extra tree regressor is shown to be the best performer among the six ML methods studied. Experimental validation of the model is conducted by performing dispersibility tests in several solvents for which the free energies are predicted. Finally, the influence of the selected descriptors on the free energies is analyzed, and strategies for solvent selection in LPE are proposed.
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Affiliation(s)
- Ehsan Shahini
- Department of Mechanical Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada
| | - Narendra Chaulagain
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada
| | - Karthik Shankar
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada
| | - Tian Tang
- Department of Mechanical Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada
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4
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Bang Truong H, Cuong Nguyen X, Hur J. Recent advances in g-C 3N 4-based photocatalysis for water treatment: Magnetic and floating photocatalysts, and applications of machine-learning techniques. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 345:118895. [PMID: 37659370 DOI: 10.1016/j.jenvman.2023.118895] [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: 06/15/2023] [Revised: 08/08/2023] [Accepted: 08/27/2023] [Indexed: 09/04/2023]
Abstract
Over the past decade, there has been a substantial increase in research investigating the potential of graphitic carbon nitride (g-C3N4) for various environmental remediations. Renowned for its photocatalytic activity under visible light, g-C3N4 offers a promising solution for treating water pollutants. However, traditional g-C3N4-based photocatalysts have inherent drawbacks, creating a disparity between laboratory efficacy and real-world applications. A primary practical challenge is their fine-powdered form, which hinders separation and recycling processes. A promising approach to address these challenges involves integrating magnetic or floating materials into conventional photocatalysts, a strategy gaining traction within the g-C3N4-based photocatalyst arena. Another emerging solution to enhance practical applications entails merging experimental results with contemporary computational methods. This synergy seeks to optimize the synthesis of more efficient photocatalysts and pinpoint optimal conditions for pollutant removal. While numerous review articles discuss the laboratory-based photocatalytic applications of g-C3N4-based materials, there is a conspicuous absence of comprehensive coverage regarding state-of-the-art research on improved g-C3N4-based photocatalysts for practical applications. This review fills this void, spotlighting three pivotal domains: magnetic g-C3N4 photocatalysts, floating g-C3N4 photocatalysts, and the application of machine learning to g-C3N4 photocatalysis. Accompanied by a thorough analysis, this review also provides perspectives on future directions to enhance the efficacy of g-C3N4-based photocatalysts in water purification.
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Affiliation(s)
- Hai Bang Truong
- Optical Materials Research Group, Science and Technology Advanced Institute, Van Lang University, Ho Chi Minh City, Viet Nam; Faculty of Applied Technology, School of Technology, Van Lang University, Ho Chi Minh City, Viet Nam.
| | - Xuan Cuong Nguyen
- Department of Environment and Energy, Sejong University, Seoul, 05006, South Korea
| | - Jin Hur
- Department of Environment and Energy, Sejong University, Seoul, 05006, South Korea.
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5
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Kumar N, Kumari M, Ismael M, Tahir M, Sharma RK, Kumari K, Koduru JR, Singh P. Graphitic carbon nitride (g-C 3N 4)-assisted materials for the detection and remediation of hazardous gases and VOCs. ENVIRONMENTAL RESEARCH 2023; 231:116149. [PMID: 37209982 DOI: 10.1016/j.envres.2023.116149] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 03/22/2023] [Accepted: 05/13/2023] [Indexed: 05/22/2023]
Abstract
Graphitic carbon nitride (g-C3N4)-based materials are attracting attention for their unique properties, such as low-cost, chemical stability, facile synthesis, adjustable electronic structure, and optical properties. These facilitate the use of g-C3N4 to design better photocatalytic and sensing materials. Environmental pollution by hazardous gases and volatile organic compounds (VOCs) can be monitored and controlled using eco-friendly g-C3N4- photocatalysts. Firstly, this review introduces the structure, optical and electronic properties of C3N4 and C3N4 assisted materials, followed by various synthesis strategies. In continuation, binary and ternary nanocomposites of C3N4 with metal oxides, sulfides, noble metals, and graphene are elaborated. g-C3N4/metal oxide composites exhibited better charge separation that leads to enhancement in photocatalytic properties. g-C3N4/noble metal composites possess higher photocatalytic activities due to the surface plasmon effects of metals. Ternary composites by the presence of dual heterojunctions improve properties of g-C3N4 for enhanced photocatalytic application. In the later part, we have summarised the application of g-C3N4 and its assisted materials for sensing toxic gases and VOCs and decontaminating NOx and VOCs by photocatalysis. Composites of g-C3N4 with metal and metal oxide give comparatively better results. This review is expected to bring a new sketch for developing g-C3N4-based photocatalysts and sensors with practical applications.
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Affiliation(s)
- Naveen Kumar
- Department of Chemistry, Maharshi Dayanand University, Rohtak, 124001, India.
| | - Monika Kumari
- Department of Chemistry, Maharshi Dayanand University, Rohtak, 124001, India
| | - Mohammed Ismael
- Electrical energy storage system, Gottfried Wilhelm Leibniz Universität Hannover, Welfengarten 1, 30167, Hannover, Germany
| | - Muhammad Tahir
- Chemical and Petroleum Engineering Department, UAE University, P.O. Box 15551, Al Ain, United Arab Emirates
| | | | - Kavitha Kumari
- Baba Mastnath University, Asthal Bohar, Rohtak, 124001, India
| | - Janardhan Reddy Koduru
- Department of Environmental Engineering, Kwangwoon University, Seoul, 01897, South Korea
| | - Pardeep Singh
- School of Advanced Chemical Sciences, Shoolini University, Solan, Himachal Pradesh, 173212, India
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6
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Oxygen-doped and pyridine-grafted g-C3N4 for visible-light driven peroxymonosulfate activation: Insights of enhanced tetracycline degradation mechanism. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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7
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Wu Q, Song Y. Recent advances in spinel ferrite-based magnetic photocatalysts for efficient degradation of organic pollutants. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2023; 87:1465-1495. [PMID: 37001160 DOI: 10.2166/wst.2023.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Although spinel ferrite (MFe2O4, M = Zn, Ni, Mn, etc.) has been reported as a promising catalyst, its low photocatalytic activity under visible light greatly restricts its practical application. Spinel ferrite-based photocatalytic composites have exhibited improved efficiency for pollutant degradation, due to interface charge carrier mobility and structural modification. Meanwhile, due to its magnetism and stability, spinel ferrite composite can be easily recycled for long-term utilization, showing its high application potential. In this review, the recent advances in the construction and photocatalytic degradation of spinel ferrite composites are discussed, with an emphasis on the relationship between structural property and photocatalytic activity. In addition, to improve their photocatalytic application, the challenges, gaps and future research prospects are proposed.
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Affiliation(s)
- Qiong Wu
- School of Environmental Science, Liaoning University, Shenyang, China E-mail:
| | - Youtao Song
- School of Environmental Science, Liaoning University, Shenyang, China E-mail: ; International Engineering Technology Research Institute of Urban and Energy Environment, Liaoning University, Shenyang, China
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8
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Design of hollow nanostructured photocatalysts for clean energy production. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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9
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Qin L, Gu H, Shen H, Luo M, Zhang T, Kang SZ, Li X. A portable architectonics of Al/carbon nitride/metal-organic frameworks anchored Ag nanoparticles for SERS detection and photocatalytic degradation of fungicide. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 285:121897. [PMID: 36148732 DOI: 10.1016/j.saa.2022.121897] [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: 06/04/2022] [Revised: 08/16/2022] [Accepted: 09/13/2022] [Indexed: 06/16/2023]
Abstract
In recent years, it is urgent to develop bi-functional materials for highly sensitive SERS detection and photocatalytic degradation of contaminants in water of fish pond. Herein, using 5-mercapto-1-methyltetrazole as the ligand, the tree-trunk like zeolitic imidazolate framework (ZIF-8) is induced and in-situ grown on the surface of aluminum/flower carbon nitride (Al/f-C3N4). Then, AgNPs are tightly anchored in ZIF-8 of Al/f-C3N4/ZIF-8 by strong Ag-N and Ag-S bonds, and a portable architecture of Al/f-C3N4/ZIF-8/Ag is successfully prepared. Results indicate that the Al/f-C3N4/ZIF-8/Ag architecture exhibits excellent SERS activity and the detection limit can as low as 2.15 × 10-11 mol⋅L-1 for crystal violet (CV, a typical fungicide). Also, the Al/f-C3N4/ZIF-8/Ag substrate presents good photocatalytic activity for CV molecule, and the degradation efficiency reaches 98.58% after illumination for 90 min. This is mainly due to the good adsorption capacity of ZIF-8 which can enrich more CV molecules and pull them to "hot spots" generated by Ag in Al/f-C3N4/ZIF-8/Ag, and thus SERS response are enhanced significantly. Besides, the strong synergistic effect of f-C3N4, ZIF-8 and AgNPs is also important which facilitates the separation of photogenerated electrons and holes. Thus, the designed portable and bi-functional substrate could be used as a potential material for the detection and removal of CV in practical application.
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Affiliation(s)
- Lixia Qin
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China.
| | - Hui Gu
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
| | - Hui Shen
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
| | - Man Luo
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
| | - Taiyang Zhang
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
| | - Shi-Zhao Kang
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
| | - Xiangqing Li
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China.
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10
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Hu J, Zhao GQ, Wu LX, Sun C, Long X, Long XQ, Jiao FP. Designing and Fabricating a Vulcanized ZnAl LDH-Modified g-C 3N 4 Heterojunction for Enhanced Visible-Light-Driven Photocatalytic Degradation Activity. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jun Hu
- School of Chemistry and Chemical Engineering, Central South University, Changsha410083, People’s Republic of China
| | - Guo-qing Zhao
- School of Chemistry and Chemical Engineering, Central South University, Changsha410083, People’s Republic of China
| | - Li-xu Wu
- School of Chemistry and Chemical Engineering, Central South University, Changsha410083, People’s Republic of China
| | - Chun Sun
- School of Chemistry and Chemical Engineering, Central South University, Changsha410083, People’s Republic of China
| | - Xuan Long
- School of Chemistry and Chemical Engineering, Central South University, Changsha410083, People’s Republic of China
| | - Xin-qi Long
- School of Chemistry and Chemical Engineering, Central South University, Changsha410083, People’s Republic of China
| | - Fei-peng Jiao
- School of Chemistry and Chemical Engineering, Central South University, Changsha410083, People’s Republic of China
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11
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Pham MT, Tran DPH, Bui XT, You SJ. Rapid fabrication of MgO@g-C 3N 4 heterojunctions for photocatalytic nitric oxide removal. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2022; 13:1141-1154. [PMID: 36320428 PMCID: PMC9592965 DOI: 10.3762/bjnano.13.96] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
Nitric oxide (NO) is an air pollutant impacting the environment, human health, and other biotas. Among the technologies to treat NO pollution, photocatalytic oxidation under visible light is considered an effective means. This study describes photocatalytic oxidation to degrade NO under visible light with the support of a photocatalyst. MgO@g-C3N4 heterojunction photocatalysts were synthesized by one-step pyrolysis of MgO and urea at 550 °C for two hours. The photocatalytic NO removal efficiency of the MgO@g-C3N4 heterojunctions was significantly improved and reached a maximum value of 75.4% under visible light irradiation. Differential reflectance spectroscopy (DRS) was used to determine the optical properties and bandgap energies of the material. The bandgap of the material decreases with increasing amounts of MgO. The photoluminescence spectra indicate that the recombination of electron-hole pairs is hindered by doping MgO onto g-C3N4. Also, NO conversion, DeNOx index, apparent quantum efficiency, trapping tests, and electron spin resonance measurements were carried out to understand the photocatalytic mechanism of the materials. The high reusability of the MgO@g-C3N4 heterojunction was shown by a five-cycle recycling test. This study provides a simple way to synthesize photocatalytic heterojunction materials with high reusability and the potential of heterojunction photocatalysts in the field of environmental remediation.
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Affiliation(s)
- Minh-Thuan Pham
- Department of Civil Engineering, Chung Yuan Christian University, Taoyuan 32023, Taiwan
- Department of Environmental Engineering, Chung Yuan Christian University, Taoyuan 32023, Taiwan
- Center for Environmental Risk Management, Chung Yuan Christian University, Taoyuan 32023, Taiwan
| | - Duyen P H Tran
- Department of Civil Engineering, Chung Yuan Christian University, Taoyuan 32023, Taiwan
- Department of Environmental Engineering, Chung Yuan Christian University, Taoyuan 32023, Taiwan
- Center for Environmental Risk Management, Chung Yuan Christian University, Taoyuan 32023, Taiwan
| | - Xuan-Thanh Bui
- Faculty of Environment and Natural Resources, Ho Chi Minh City University of Technology (HCMUT), VNU-HCM, 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 700000, Viet Nam
| | - Sheng-Jie You
- Department of Environmental Engineering, Chung Yuan Christian University, Taoyuan 32023, Taiwan
- Center for Environmental Risk Management, Chung Yuan Christian University, Taoyuan 32023, Taiwan
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12
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Wang H, Rui J, Xiao W, Peng Y, Peng Z, Qiu P. Enzyme-free ratiometric fluorescence and colorimetric dual read-out assay for glyphosate with ultrathin g-C3N4 nanosheets. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107587] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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13
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Qin Y, Yang S, You X, Liu Y, Qin L, Li Y, Zhang W, Liang W. Carbon nitride coupled with Fe-based MOFs as an efficient photoelectrocatalyst for boosted degradation of ciprofloxacin: Mechanism, pathway and fate. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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14
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Mirhosseini H, Shamspur T, Mostafavi A. Novel adsorbent g
‐C
3
N
4
/
ZnV
2
O
4
for efficient removal of crystal violet dye: removal process optimization, adsorption isotherms and kinetic modeling. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hadiseh Mirhosseini
- Department of Chemistry, Faculty of science Shahid Bahonar University of Kerman Kerman Iran
- Young Research Society Shahid Bahonar University of Kerman Kerman Iran
| | - Tayebeh Shamspur
- Department of Chemistry, Faculty of science Shahid Bahonar University of Kerman Kerman Iran
| | - Ali Mostafavi
- Department of Chemistry, Faculty of science Shahid Bahonar University of Kerman Kerman Iran
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15
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Co-Doped, Tri-Doped, and Rare-Earth-Doped g-C3N4 for Photocatalytic Applications: State-of-the-Art. Catalysts 2022. [DOI: 10.3390/catal12060586] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/10/2022] Open
Abstract
Rapid industrialization and overpopulation have led to energy shortages and environmental pollution, accelerating research to solve the issues. Currently, metal-free photocatalysts have gained the intensive attention of scientists due to their environmental-friendly nature and ease of preparation. It was noticed that g-C3N4 (GCN) consists of a few outstanding properties that could be used for various applications such as water treatment and clean energy production. Nonetheless, bare GCN contains several drawbacks such as high charge recombination, limited surface area, and low light sensitivity. Several solutions have been applied to overcome GCN limitations. Co-doping, tri-doping, and rare-earth-doping can be effective solutions to modify the GCN structure and improve its performance toward photocatalysis. This review highlights the function of multi-elemental and rare-earth dopants in GCN structure, mechanisms, and performance for photocatalytic applications as well as the advantages of co-doping, tri-doping, and rare-earth-doping of GCN. This review summarizes the different roles of dopants in addressing the limitations of GCN. Therefore, this article critically reviewed how multi-elemental and rare-earth-doping affect GCN properties and enhanced photoactivity for various applications.
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16
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Yan X, Kang B, Ai T, Li Z, Niu Y. Enhanced visible light photocatalytic performance of crystalline g-C3N4 nanosheets by one-step molten salt method. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109209] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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17
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Li Y, Xu F, Sun L, Xue X, Wang Y, Liao L, Guan Y, Li B, Zhang K, Zou Y, Zhang H. Enhanced visible-light-driven RhB removal with a Mo–Ni bimetallic sulfide/g-C 3N 4 nanosheet Schottky junction. NEW J CHEM 2022. [DOI: 10.1039/d2nj01100j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A novel Schottky heterojunction is fabricated from narrow bandgap Mo–Ni bimetallic sulfide and g-C3N4 nanosheets to maximize carrier separation.
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Affiliation(s)
- Yaying Li
- Guangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, P. R. China
| | - Fen Xu
- Guangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, P. R. China
| | - Lixian Sun
- Guangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, P. R. China
| | - Xiaogang Xue
- Guangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, P. R. China
| | - Yingjing Wang
- Guangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, P. R. China
| | - Lumin Liao
- Guangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, P. R. China
| | - Yanxun Guan
- Guangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, P. R. China
| | - Bin Li
- Guangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, P. R. China
| | - Kexiang Zhang
- Guangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, P. R. China
| | - Yongjin Zou
- Guangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, P. R. China
| | - Huanzhi Zhang
- Guangxi Key Laboratory of Information Materials & Guangxi Collaborative Innovation Center for Structure and Properties for New Energy and Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, P. R. China
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18
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Li X, Wu Q, Hussain M, Chen L, Huang Q, Huang W, Tao T. Sodium alkoxide-mediated g-C 3N 4 immobilized on a composite nanofibrous membrane for preferable photocatalytic activity. RSC Adv 2022; 12:15378-15384. [PMID: 35693247 PMCID: PMC9121215 DOI: 10.1039/d2ra02441a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 05/16/2022] [Indexed: 11/21/2022] Open
Abstract
Sodium alkoxide-mediated g-C3N4 is presented to fabricate flexible electrospun polyacrylonitrile nanofibers for the first time.
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Affiliation(s)
- Xue Li
- School of Chemistry and Materials Science, Institute of Advanced Materials and Flexible Electronics, Nanjing University of Information Science and Technology (NUIST), Nanjing 210044, P. R. China
- Jiangsu Collaborative Innovation Centre of Atmospheric Environment and Equipment Technologies, Jiangsu Key Laboratory of Atmospheric Environmental Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, P. R. China
| | - Qin Wu
- School of Chemistry and Materials Science, Institute of Advanced Materials and Flexible Electronics, Nanjing University of Information Science and Technology (NUIST), Nanjing 210044, P. R. China
- Jiangsu Collaborative Innovation Centre of Atmospheric Environment and Equipment Technologies, Jiangsu Key Laboratory of Atmospheric Environmental Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, P. R. China
| | - Mushraf Hussain
- School of Chemistry and Materials Science, Institute of Advanced Materials and Flexible Electronics, Nanjing University of Information Science and Technology (NUIST), Nanjing 210044, P. R. China
- Reading Academy, NUIST-UoR International Research Institute, Nanjing 210044, P. R. China
| | - Liang Chen
- Jiangsu Collaborative Innovation Centre of Atmospheric Environment and Equipment Technologies, Jiangsu Key Laboratory of Atmospheric Environmental Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, P. R. China
| | - Qiong Huang
- Jiangsu Collaborative Innovation Centre of Atmospheric Environment and Equipment Technologies, Jiangsu Key Laboratory of Atmospheric Environmental Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, P. R. China
| | - Wei Huang
- State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
| | - Tao Tao
- School of Chemistry and Materials Science, Institute of Advanced Materials and Flexible Electronics, Nanjing University of Information Science and Technology (NUIST), Nanjing 210044, P. R. China
- Reading Academy, NUIST-UoR International Research Institute, Nanjing 210044, P. R. China
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