1
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Lee J, Lee Y, Yu J, Yim K, Kadam AN, Lee SW. Interface engineered cascade-type electronic structure of 2D/0D/2D CdS-CdCO 3/SnO 2 quantum dots/g-C 3N 4 nanocomposite for boosting solar-driven photocatalysis. ENVIRONMENTAL RESEARCH 2024; 256:119202. [PMID: 38782343 DOI: 10.1016/j.envres.2024.119202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 05/15/2024] [Accepted: 05/20/2024] [Indexed: 05/25/2024]
Abstract
A rational design of heterojunctions with high-quality contacts is essential for efficiently separating photogenerated charge carries and boosting the solar-driven harvesting capability. Herein, we fabricated a novel heterojunction of SnO2 quantum dots-anchored CdS-CdCO3 with g-C3N4 nanosheets as a superior photocatalyst. SnO2 quantum dots (SQDs) with positively charged surfaces were tightly anchored on the negatively charged surface of CdS nanosheets (NSs). The resulting CdS@SnO2 was finally decorated with g-C3N4 NSs, and a new crystalline phase of CdS-CdCO3 was formed during the hydrothermal decoration process, g-C3N4 decorated CdS-CdCO3@SnO2 (CdS-CdCO3@SnO2@g-C3N4). The as-synthesized photocatalysts were evaluated for the degradation of methyl orange dye under solar light conditions. The CdS-CdCO3@SnO2@g-C3N4 exhibited 7.7-fold and 2.3-fold enhancements in photocatalytic activities in comparison to those of the bare CdS and CdS@SnO2 NSs, respectively. The optimal performance of CdS-CdCO3@SnO2@g-C3N4 is primarily attributed to the cascade-type conduction band alignments between 2D/0D/2D heterojunctions, which can harvest maximum solar light and effectively separate photoexcited charge carriers. This work provides a new inspiration for the rational design of 2D/0D/2D heterojunction photocatalyst for green energy generation and environmental remediation applications.
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Affiliation(s)
- JinHyeok Lee
- Department of Chemical and Biological Engineering, Gachon University, San 65, Bokjeong-Dong, Sujeong-Gu, Seongnam City, Gyeonggi-do, 461-701, South Korea
| | - Yechan Lee
- Department of Chemical and Biological Engineering, Gachon University, San 65, Bokjeong-Dong, Sujeong-Gu, Seongnam City, Gyeonggi-do, 461-701, South Korea
| | - Jii Yu
- Department of Chemical and Biological Engineering, Gachon University, San 65, Bokjeong-Dong, Sujeong-Gu, Seongnam City, Gyeonggi-do, 461-701, South Korea
| | - Kiseong Yim
- Department of Chemical and Biological Engineering, Gachon University, San 65, Bokjeong-Dong, Sujeong-Gu, Seongnam City, Gyeonggi-do, 461-701, South Korea
| | - Abhijit N Kadam
- Department of Chemical and Biological Engineering, Gachon University, San 65, Bokjeong-Dong, Sujeong-Gu, Seongnam City, Gyeonggi-do, 461-701, South Korea; Department of Chemistry, John Wilson Education Society's, Wilson College (Autonomous), Mumbai, Maharashtra, 400007, India.
| | - Sang-Wha Lee
- Department of Chemical and Biological Engineering, Gachon University, San 65, Bokjeong-Dong, Sujeong-Gu, Seongnam City, Gyeonggi-do, 461-701, South Korea.
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Emmanuel A, Yang M, Xu T, Shen Q, Sun C. Metal-organic frameworks incorporated with C 3N 4: A visible light enhanced platform for degradation of polybromodiphenyl ethers. J Environ Sci (China) 2023; 134:44-54. [PMID: 37673532 DOI: 10.1016/j.jes.2022.04.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 04/09/2022] [Accepted: 04/26/2022] [Indexed: 09/08/2023]
Abstract
A series of nano-photocatalysts metal-organic frameworks (MOFs)/graphitic carbon nitride (CN) (named MOFCN-x) with high activity have been synthesized by in-situ growth method. Under visible light irradiation, MOFCN-x hybrids show enhanced photocatalytic activity for the debromination of polybromodiphenyl ethers (PBDEs) compared with CN. Among all the hybrids, MOFCN-2 shows the highest reaction rate, which is 3.3 times as high as that in CN. MOFCN-x photocatalysts own stable visible light activity after recycled experiment. It indicates that a moderate amount of MOFs in MOFCN-x can largely enhance the photocatalytic ability by improved visible light absorption, larger specific surface area and better photo-generated charge carriers separation and transfer capabilities. More interestingly, the debromination pathway of PBDEs by MOFCN-x shows obvious selectivity compared with pure CN that bromines at meta-positions are much more susceptible than those at the para- and ortho-positions. The possible photoreductive mechanism has been proposed. This study shows that nanocomposite MOFCN can be an excellent candidate for dealing with halogen pollutants by solar-driven.
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Affiliation(s)
- Akese Emmanuel
- School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China
| | - Meiying Yang
- School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China
| | - Tingting Xu
- School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China
| | - Qi Shen
- School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China; School of Chemistry and Chemical Engineering, Institute of New Energy, Shaoxing University, Shaoxing 312000, China.
| | - Chunyan Sun
- School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, China.
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Rohilla P, Pal B, Das RK. Improved photocatalytic degradation of rhodamine B by g-C 3N 4 loaded BiVO 4 nanocomposites. Heliyon 2023; 9:e21900. [PMID: 38034819 PMCID: PMC10685194 DOI: 10.1016/j.heliyon.2023.e21900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 10/10/2023] [Accepted: 10/31/2023] [Indexed: 12/02/2023] Open
Abstract
Photocatalytic degradation has emerged as one of the most efficient methods to eliminate toxic dyes from wastewater. In this context, graphitic nitride (g-C3N4) loaded BiVO4 nanocomposites (5 wt% g-CN@BiVO4 and 10 wt% g-CN@BiVO4) have been fabricated by the wet impregnation method, and their efficiency towards photocatalytic removal of rhodamine B have been investigated under visible light irradiation. These hybrid composites have been characterized by XRD, FESEM, HRTEM, EDS-mapping, UV-Vis DRS, DLS, XPS and BET, etc. The HRTEM images revealed that BiVO4 has a decagonal shape covered by a layered nanosheet-like structure of g-C3N4. BET measurements suggest increasing the proportion of g-C3N4 results enhancement of the specific surface area. Among different photocatalysts, the 10 wt% g-C3N4@BiVO4 hybrid possesses the best catalytic activity with 86% degradation efficiency after 60 min of reaction time. The LC-MS studies suggest that the degradation reactions follow the de-ethylation pathway. Even after five cycles, the heterostructure shows only a 14% decrease in photocatalytic activity, confirming its stability. As a result, the binary composite can be regarded as a promising catalyst for the degradation of pollutants due to its ease of preparation, high stability and superior catalytic activity.
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Affiliation(s)
- Priti Rohilla
- School of Chemistry and Biochemistry, Thapar Institute of Engineering & Technology, Patiala, 147004, Punjab, India
| | - Bonamali Pal
- School of Chemistry and Biochemistry, Thapar Institute of Engineering & Technology, Patiala, 147004, Punjab, India
- TIET-Virginia Tech Center of Excellence in Emerging Materials, Thapar Institute of Engineering and Technology, Patiala, 147004, India
| | - Raj Kumar Das
- School of Chemistry and Biochemistry, Thapar Institute of Engineering & Technology, Patiala, 147004, Punjab, India
- TIET-Virginia Tech Center of Excellence in Emerging Materials, Thapar Institute of Engineering and Technology, Patiala, 147004, India
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Shabna S, Dhas SSJ, Biju C. Potential progress in SnO2 nanostructures for enhancing photocatalytic degradation of organic pollutants. CATAL COMMUN 2023. [DOI: 10.1016/j.catcom.2023.106642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023] Open
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5
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Lian X, Huang Z, Zhang Y, Chen Z, Meidl P, Yi X, Xu B. Constructing Z-scheme 1D/2D heterojunction of ZnIn 2S 4 nanosheets decorated WO 3 nanorods to enhance Cr(VI) photocatalytic reduction and rhodamine B degradation. CHEMOSPHERE 2023; 313:137351. [PMID: 36574576 DOI: 10.1016/j.chemosphere.2022.137351] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 11/01/2022] [Accepted: 11/20/2022] [Indexed: 06/17/2023]
Abstract
Photocatalysis has been vastly employed as a feasible and efficient strategy for the removal of environmental pollutants. In this study, a well-designed core-shell heterojunction of WO3 decorated with ZnIn2S4 nanosheets were fabricated under mild in-situ conditions, and fabricated processes were systematically investigated with different fabrication durations. The coupling of WO3 and ZnIn2S4 (ZIS) resulted in a Z-scheme mechanism for charge carrier transfer, holding the respective redox capacity. The as-prepared 1D/2D WO3@ZIS heterostructure displayed the highest removal efficiency within 30 min for 25 mg L-1 Cr(VI), 89.3 and 29.7 times higher than pure WO3 and ZnIn2S4. 1D/2D WO3@ZIS remained excellently stable after 5 cycling experiments. Moreover, 40 mg L-1 RhB could be degraded within 50 min. The broad and short photogenerated electron transportation path is guaranteed by the 1D/2D and Z-scheme charge separation mechanism. It efficiently prevented photo-generated charge carriers from recombination, resulting in a longer carrier lifespan and better photocurrent responses than that of pure ones. This photocatalytic system showed promising results and also provides a framework for an efficient system for photocatalysis with potential for environmental application.
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Affiliation(s)
- Xinyi Lian
- College of Chemistry and Chemical Engineering, College of Materials, Xiamen University, Xiamen, 361005, PR China
| | - Zongyi Huang
- College of Chemistry and Chemical Engineering, College of Materials, Xiamen University, Xiamen, 361005, PR China
| | - Yuqi Zhang
- College of Chemistry and Chemical Engineering, College of Materials, Xiamen University, Xiamen, 361005, PR China
| | - Zhou Chen
- College of Chemistry and Chemical Engineering, College of Materials, Xiamen University, Xiamen, 361005, PR China
| | - Peter Meidl
- Systematic Botany and Mycology, Ludwig-Maximilians Universität München, Munich, 80638, Germany
| | - Xiaodong Yi
- College of Chemistry and Chemical Engineering, College of Materials, Xiamen University, Xiamen, 361005, PR China.
| | - Baile Xu
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, PR China.
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Tercan M, Dayan O, Özdemir N. Simultaneous reduction of 4-nitrophenol, 4-nitroaniline and methylene blue organic pollutants via TiO2 supported Pd(II) complex catalyst bearing 2-(6-methylpyridin-2-yl)-1H-benzimidazole type ligand. Polyhedron 2023. [DOI: 10.1016/j.poly.2023.116297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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7
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Enhanced photocatalytic nitrogen fixation on oxygen doped high specific surface area g-C3N4 under simulated sunlight. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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8
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Chawla A, Sudhaik A, Raizada P, Khan AAP, Singh A, Van Le Q, Van Huy Nguyen, Ahamad T, Alsheri SM, Asiri AM, Singh P. An overview of SnO2 based Z scheme heterojuctions: Fabrication, mechanism and advanced photocatalytic applications. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.09.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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9
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Nivetha MRS, Kumar JV, Ajarem JS, Allam AA, Manikandan V, Arulmozhi R, Abirami N. Construction of SnO 2/g-C 3N 4 an effective nanocomposite for photocatalytic degradation of amoxicillin and pharmaceutical effluent. ENVIRONMENTAL RESEARCH 2022; 209:112809. [PMID: 35104479 DOI: 10.1016/j.envres.2022.112809] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/21/2022] [Accepted: 01/22/2022] [Indexed: 06/14/2023]
Abstract
The current study mainly focused on the fabrication of 2D graphitic carbon nitride-supported tin oxide nanoparticles (SnO2/g-C3N4) for the effective degradation of Amoxicillin (AMX). Tin oxide (SnO2) NPs were prepared by green and easy modification technique, and then it is decorated over g-C3N4 nanosheets. The structural morphology and surface composition of the synthesized SnO2/g-C3N4 nanocomposite were fully analysed by UV-Vis, XRD, XPS, and HR-SEM with EDAX, FT-IR, and BET analysis. The (HR-TEM) microscopy, the size of SnO2 NPs which as a diameter is about 6.2 nm. The Raman analysis revealed that the SnO2/g-C3N4 composite had a moderate graphitic structure, with a measured ID/Ig value of 0.79. The degradation efficiency of antibiotic pollutant AMX and pharma effluent treatment was monitored by UV spectroscopy. The optical band gap of SnO2 (2.9 eV) and g-C3N4 (2.8 eV) photocatalyst was measured by Tauc plots. To investigate the mechanism through the photodegradation efficiency of the catalyst was analysed by using different Scavenger EDTA-2Na holes (h+) has a greater contribution towards the degradation process. Under visible irradiation, SnO2/g-C3N4 nanocomposite has exhibited an excellent degradation performance of 92.1% against AMX and 90.8% for pharmaceutical effluent in 80 min.
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Affiliation(s)
- Michael Raj Sherlin Nivetha
- Department of Chemistry, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603 203, India
| | - Jothi Vinoth Kumar
- Department of Chemistry, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603 203, India
| | - Jamaan S Ajarem
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Ahmed A Allam
- Zoology Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Velu Manikandan
- Department of BioNano Technology, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do, 13120, South Korea
| | - Rajaram Arulmozhi
- Department of Chemistry, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603 203, India
| | - Natarajan Abirami
- Department of Chemistry, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603 203, India.
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10
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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] [Grants] [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
g-C3N4 is a classic photocatalyst not only owing to the metal-free semiconducting electronic structure but also tunable multifunctional properties. However, strategies for chemical exfoliation of g-C3N4 based on organic bases have been rarely reported. A family of sodium alkoxide-mediated g-C3N4 has been prepared via a simple synthesis. The degradation rate of bulk g-C3N4 is 39.8% when irradiation lasts 140 minutes. However, the degradation rate of g-C3N4-MeONa, g-C3N4-EtONa, and g-C3N4- t BuONa is 55.1%, 68.6%, and 79.1%, respectively, under the same conditions. Furthermore, g-C3N4- t BuONa has been immobilized on flexible electrospun PAN nanofibers to prepare floating photocatalysts. SEM analysis shows that the paper-based photocatalyst PAN/g-C3N4- t BuONa becomes a nanofiber membrane (A4 size, 210 mm × 297 mm). The nanofiber is approximately 350 nm in diameter. Interestingly, once synthesized, the g-C3N4- t BuONa particles move into the spinning solution, where the nanofiber wraps around them to form a monodisperse structure that resembles beads, or knots of 1-2 μm, on a string. The degradation efficiency of 10 mg L-1 MB solution can reach 100% for 2 hours until the solution becomes colorless. In addition, the photocatalytic mechanism studies have been validated. Different from H2SO4 or HNO3, this work has proposed a facile strategy for designing preferable floating photocatalysts using sodium alkoxide.
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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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Alaghmandfard A, Ghandi K. A Comprehensive Review of Graphitic Carbon Nitride (g-C 3N 4)-Metal Oxide-Based Nanocomposites: Potential for Photocatalysis and Sensing. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:294. [PMID: 35055311 PMCID: PMC8779993 DOI: 10.3390/nano12020294] [Citation(s) in RCA: 58] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 12/27/2021] [Accepted: 01/05/2022] [Indexed: 02/06/2023]
Abstract
g-C3N4 has drawn lots of attention due to its photocatalytic activity, low-cost and facile synthesis, and interesting layered structure. However, to improve some of the properties of g-C3N4, such as photochemical stability, electrical band structure, and to decrease charge recombination rate, and towards effective light-harvesting, g-C3N4-metal oxide-based heterojunctions have been introduced. In this review, we initially discussed the preparation, modification, and physical properties of the g-C3N4 and then, we discussed the combination of g-C3N4 with various metal oxides such as TiO2, ZnO, FeO, Fe2O3, Fe3O4, WO3, SnO, SnO2, etc. We summarized some of their characteristic properties of these heterojunctions, their optical features, photocatalytic performance, and electrical band edge positions. This review covers recent advances, including applications in water splitting, CO2 reduction, and photodegradation of organic pollutants, sensors, bacterial disinfection, and supercapacitors. We show that metal oxides can improve the efficiency of the bare g-C3N4 to make the composites suitable for a wide range of applications. Finally, this review provides some perspectives, limitations, and challenges in investigation of g-C3N4-metal-oxide-based heterojunctions.
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Affiliation(s)
| | - Khashayar Ghandi
- Department of Chemistry, University of Guelph, Guelph, ON N1G 2W1, Canada;
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12
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Catalytic ozonation of real textile wastewater by magnetic oxidized g-C3N4 modified with Al2O3 nanoparticles as a novel catalyst. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120208] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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13
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Wu H, Meng F, Liu X, Yu B. Carbon nanotubes as electronic mediators combined with Bi 2MoO 6and g-C 3N 4to form Z-scheme heterojunctions to enhance visible light photocatalysis. NANOTECHNOLOGY 2021; 33:115203. [PMID: 34852335 DOI: 10.1088/1361-6528/ac3f13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 12/01/2021] [Indexed: 06/13/2023]
Abstract
In this paper, Z-scheme Bi2MoO6/CNTs/g-C3N4composite photocatalysts were prepared through a simple hydrothermal method. The analysis was performed by XRD, FT-IR, SEM, EDS, TEM, HRTEM, XPS, BET, UV-Vis diffuse reflectance and PL spectrums. Various analyses show that CNTs not only act as excellent charge transfer bridges, but also enable a formation of the Z-scheme of charge transfer mechanism between Bi2MoO6and g-C3N4. This process not only effectively isolates electrons and holes, but also prolongs electron-hole pair lifetimes, resulting in a substantial improvement in the photocatalytic performance of the composite photocatalyst. Best photocatalytic degradation performance was shown by Bi2MoO6/CNTs/g-C3N4composite photocatalyst under simulated sunlight, while the composite photocatalyst still maintained extremely high degradation performance in cycling tests.
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Affiliation(s)
- Hao Wu
- School of Materials Science and Engineering, Anhui University, Hefei 230601, People's Republic of China
- School of Physics and Optoelectronics Engineering, Anhui University, Hefei 230601, People's Republic of China
| | - Fanming Meng
- School of Materials Science and Engineering, Anhui University, Hefei 230601, People's Republic of China
- School of Physics and Optoelectronics Engineering, Anhui University, Hefei 230601, People's Republic of China
| | - Xingbing Liu
- School of Materials Science and Engineering, Anhui University, Hefei 230601, People's Republic of China
- School of Physics and Optoelectronics Engineering, Anhui University, Hefei 230601, People's Republic of China
| | - Bo Yu
- School of Materials Science and Engineering, Anhui University, Hefei 230601, People's Republic of China
- School of Physics and Optoelectronics Engineering, Anhui University, Hefei 230601, People's Republic of China
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14
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Li S, Lai C, Li C, Zhong J, He Z, Peng Q, Liu X, Ke B. Enhanced photocatalytic degradation of dimethyl phthalate by magnetic dual Z-scheme iron oxide/mpg-C3N4/BiOBr/polythiophene heterostructure photocatalyst under visible light. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116947] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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15
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Insights into the in-built Tb4+/Tb3+ redox centers for boosted hydroxyl radical yield and superior separation of charge carriers by investigating Tb2O3/g-C3N4 composite photocatalysts. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.08.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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16
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Zhang YH, Liu MM, Chen JL, Fang SM, Zhou PP. Recent advances in Cu 2O-based composites for photocatalysis: a review. Dalton Trans 2021; 50:4091-4111. [PMID: 33710176 DOI: 10.1039/d0dt04434b] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Cu2O-based composites for photocatalysis have been extensively explored owing to their promising application in solving environmental and energy problems. At present, the research on photocatalysis is focused on improving the photocatalytic performance of materials. It has been reported that adjusting the morphology and size of Cu2O can effectively improve its photocatalytic property. However, photocorrosion is still an inevitable problem, which hinders the application of Cu2O in photocatalysis. The strategies of constructing heterogeneous nanostructures and ion doping can significantly improve the light stability, light absorption capacity and separation efficiency of electron-hole pairs. Cu2O-based composites exhibit superior performances in degrading organic matter, producing hydrogen, reducing CO2 and sterilization. Therefore, the construction of multi-materials will be one of the future directions in their photocatalytic application. This review summarizes the recent strategies for enhancing the photocatalytic activity of Cu2O by analyzing different Cu2O-based photocatalysts, and the charge transfer pathway is further discussed in detail. Finally, several opportunities and challenges in the field of photocatalysis are illustrated.
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Affiliation(s)
- Yong-Hui Zhang
- College of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China.
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Svoboda L, Bednář J, Dvorský R, Panáček A, Hochvaldová L, Kvítek L, Malina T, Konvičková Z, Henych J, Němečková Z, Večeřová R, Kolář M, Matýsek D, Vilamová Z. Crucial cytotoxic and antimicrobial activity changes driven by amount of doped silver in biocompatible carbon nitride nanosheets. Colloids Surf B Biointerfaces 2021; 202:111680. [PMID: 33714189 DOI: 10.1016/j.colsurfb.2021.111680] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 02/08/2021] [Accepted: 03/05/2021] [Indexed: 11/28/2022]
Abstract
The use of Ag-modified nanomaterials continues to attract attention in biological contamination control, their potential cytotoxicity is often overlooked. Herein, biocompatible carbon nitride is modified with 1 and 5 wt.% Ag and effects of different nanomaterial dose and Ag content on antimicrobial activity and cytotoxicity is studied. Pure Ag nanoparticles and AgNO3 is tested for comparison, together with ten bacterial strains including pan-resistant Pseudomonas aeruginosa. Cytotoxicity is then investigated in three adherent and two suspension human cell lines, and results confirm that cancer adherent cell lines are the most immune lines and human cervical adenocarcinoma cells (HeLa) are more resilient than human lung adenocarcinoma cells (A549). The HeLa remains over 90 % viable even after 24 -h treatment with the highest concentration of 5%Ag/g-C3N4 (300 mg L-1) while A549 sustained viability only up to 100 mg L-1. Higher concentrations then induce cytotoxicity and A549 cell viability decreases. Our results show the importance of complementary testing of cytotoxicity by LIVE/DEAD assay using flow cytometry with more different human cell lines, which might be less immune to tested nanomaterials than HeLa and A549. Combined controls of new antibacterial agent activity tests then provide increased knowledge of their biocompatibility.
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Affiliation(s)
- Ladislav Svoboda
- Nanotechnology Centre, CEET, VŠB - Technical University of Ostrava, 17. listopadu 15/2172, Ostrava, 708 00, Czech Republic; IT4Innovations, VŠB - Technical University of Ostrava, 17. listopadu 15/2172, Ostrava, 708 00, Czech Republic.
| | - Jiří Bednář
- Nanotechnology Centre, CEET, VŠB - Technical University of Ostrava, 17. listopadu 15/2172, Ostrava, 708 00, Czech Republic; IT4Innovations, VŠB - Technical University of Ostrava, 17. listopadu 15/2172, Ostrava, 708 00, Czech Republic
| | - Richard Dvorský
- Nanotechnology Centre, CEET, VŠB - Technical University of Ostrava, 17. listopadu 15/2172, Ostrava, 708 00, Czech Republic; IT4Innovations, VŠB - Technical University of Ostrava, 17. listopadu 15/2172, Ostrava, 708 00, Czech Republic
| | - Aleš Panáček
- Department of Physical Chemistry, Faculty of Science, Palacký University, 17. listopadu 12, Olomouc, 77146, Czech Republic
| | - Lucie Hochvaldová
- Department of Physical Chemistry, Faculty of Science, Palacký University, 17. listopadu 12, Olomouc, 77146, Czech Republic
| | - Libor Kvítek
- Department of Physical Chemistry, Faculty of Science, Palacký University, 17. listopadu 12, Olomouc, 77146, Czech Republic
| | - Tomáš Malina
- Department of Physical Chemistry, Faculty of Science, Palacký University, 17. listopadu 12, Olomouc, 77146, Czech Republic; Regional Centre of Advanced Technologies and Materials, Palacký University, Šlechtitelů 27, Olomouc, 78 371, Czech Republic
| | - Zuzana Konvičková
- Nanotechnology Centre, CEET, VŠB - Technical University of Ostrava, 17. listopadu 15/2172, Ostrava, 708 00, Czech Republic; ENET Centre, CEET, VŠB - Technical University of Ostrava, 17. listopadu 15/2172, Ostrava, 708 00, Czech Republic
| | - Jiří Henych
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-Řež, 1001, 250 68, Řež, Czech Republic
| | - Zuzana Němečková
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-Řež, 1001, 250 68, Řež, Czech Republic
| | - Renata Večeřová
- Department of Microbiology, Faculty of Medicine and Dentistry, Palacký University Olomouc, Hněvotínská 3, 775 15, Olomouc, Czech Republic
| | - Milan Kolář
- Department of Microbiology, Faculty of Medicine and Dentistry, Palacký University Olomouc, Hněvotínská 3, 775 15, Olomouc, Czech Republic
| | - Dalibor Matýsek
- Institute of Geological Engineering, VŠB - Technical University of Ostrava, 17. listopadu 15/2172, Ostrava, 708 00, Czech Republic
| | - Zuzana Vilamová
- Nanotechnology Centre, CEET, VŠB - Technical University of Ostrava, 17. listopadu 15/2172, Ostrava, 708 00, Czech Republic
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Kaci MM, Nasrallah N, Kebir M, Guernanou R, Soukeur A, Trari M. Synthesis, physical and electrochemical properties of CoMn2O4: application to photocatalytic Ni2+ reduction. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-020-04371-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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19
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Niu J, Wang K, Ma Z, Yang F, Zhang Y. Application of g‐C
3
N
4
Matrix Composites Photocatalytic Performance from Degradation of Antibiotics. ChemistrySelect 2020. [DOI: 10.1002/slct.202003407] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jinfen Niu
- School of Science Xi'an University of Technology Xi'an 710048 China
- Research Center for Micro&Nano Materials Xi'an University of Technology Xi'an 710048 China
| | - Kai Wang
- School of Science Xi'an University of Technology Xi'an 710048 China
| | - Zhangtengfei Ma
- School of Science Xi'an University of Technology Xi'an 710048 China
| | - Fan Yang
- School of Science Xi'an University of Technology Xi'an 710048 China
| | - Yue Zhang
- School of Science Xi'an University of Technology Xi'an 710048 China
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Humaira Y, Amir Z, Shouxin L. Surface plasmon resonance electron channeled through amorphous aluminum oxide bridged ZnO coupled g-C3N4 significantly promotes charge separation for pollutants degradation under visible light. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112681] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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21
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Enhanced visible-light-driven photoelectrochemical and photocatalytic performance of Au-SnO2 quantum dot-anchored g-C3N4 nanosheets. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116652] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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22
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Huang Q, Zhao Q, Yang C, Jiang T. Facile synthesis of mesoporous graphitic carbon nitride/SnO2 nanocomposite photocatalysts for the enhanced photodegradation of Rhodamine B. REACTION KINETICS MECHANISMS AND CATALYSIS 2019. [DOI: 10.1007/s11144-019-01712-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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23
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M. N, S. V, Keerthi. A novel g-C3N4/MnV2O6 heterojunction photocatalyst for the removal of methylene blue and indigo carmine. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.136832] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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24
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Eco-friendly synthesis of Mg0.5Ni0.5AlxFe2-xO4 magnetic nanoparticles and study of their photocatalytic activity for degradation of direct blue 129 dye. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.111942] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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25
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Yu Y, Yao B, Cao B, Ma W. Morphology-controlled Fabrication of SnO 2 /ZnO Nanocomposites with Enhanced Photocatalytic Performance. Photochem Photobiol 2019; 95:1131-1141. [PMID: 30900748 DOI: 10.1111/php.13101] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 03/14/2019] [Indexed: 11/29/2022]
Abstract
In this work, a series of novel SnO2 /ZnO nanocomposites with different morphologies were fabricated via a facile hydrothermal technique followed by calcination in air. The morphological, structural and photocatalytic properties of the SnO2 /ZnO nanocomposites were studied using different methods. The results showed that the synthesized nanocomposites possessed crystal phases of wurtzite hexagonal phase ZnO and tetragonal rutile phase SnO2 . In addition, the morphologies of SnO2 /ZnO nanocomposites strongly depended on the molar ratios of Sn and Zn. Compared with ZnO and SnO2 , the SnO2 /ZnO nanocomposites exhibited considerably higher degradation efficiency for the photodegradation of methylene blue and quinolone antibiotics under mercury lamp irradiation. The SZ-2 nanospheres exhibited the highest degradation efficiency of 95.81%, which was about 2.63 times higher than that of ZnO nanoparticles. Moreover, the trapping experiments confirmed that ˙OH played the dominant role in MB degradation. Finally, the charge carriers potential transfer pathway and photocatalytic degradation mechanism were put forward. This study provides an economical way to prepare hybrid nanocomposites with controlled morphology for practical applications in the photocatalytic degradation of organic dyes and residual antibiotics.
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Affiliation(s)
- Yan Yu
- College of Materials Science and Engineering, Xi'an University of Technology, Xi'an, China.,College of Chemical Engineering and Modern Materials/Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources, Shangluo University, Shangluo, China
| | - Binghua Yao
- College of Materials Science and Engineering, Xi'an University of Technology, Xi'an, China
| | - Baoyue Cao
- College of Chemical Engineering and Modern Materials/Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources, Shangluo University, Shangluo, China
| | - Wei Ma
- College of Materials Science and Engineering, Xi'an University of Technology, Xi'an, China
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Singh J, Sharma S, Aanchal, Basu S. Synthesis of Fe2O3/TiO2 monoliths for the enhanced degradation of industrial dye and pesticide via photo-Fenton catalysis. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.03.004] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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27
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Kusutaki T, Katsumata H, Tateishi I, Furukawa M, Kaneco S. Ternary dual Z-scheme graphitic carbon nitride/ultrathin metal–organic framework nanosheet/Ag3PO4 photocatalysts for boosted photocatalytic performance under visible light. RSC Adv 2019; 9:39843-39853. [PMID: 35541425 PMCID: PMC9076175 DOI: 10.1039/c9ra08292a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 11/27/2019] [Indexed: 12/20/2022] Open
Abstract
The enhanced photocatalytic activity of CN10UA results from fast charge transport through dual Z-scheme channels.
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Affiliation(s)
- Tomoharu Kusutaki
- Department of Chemistry for Materials
- Graduate School of Engineering
- Mie University
- Tsu
- Japan
| | - Hideyuki Katsumata
- Department of Chemistry for Materials
- Graduate School of Engineering
- Mie University
- Tsu
- Japan
| | - Ikki Tateishi
- Mie Global Environment Center for Education & Research
- Mie University
- Tsu
- Japan
| | - Mai Furukawa
- Department of Chemistry for Materials
- Graduate School of Engineering
- Mie University
- Tsu
- Japan
| | - Satoshi Kaneco
- Department of Chemistry for Materials
- Graduate School of Engineering
- Mie University
- Tsu
- Japan
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