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Jędras A, Matusik J, Dhanaraman E, Fu YP, Cempura G. Tuning the Structural and Electronic Properties of Zn-Cr LDH/GCN Heterostructure for Enhanced Photodegradation of Estrone in UV and Visible Light. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40. [PMID: 39140300 PMCID: PMC11363147 DOI: 10.1021/acs.langmuir.4c01897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 08/05/2024] [Accepted: 08/06/2024] [Indexed: 08/15/2024]
Abstract
Estrone is an emerging contaminant found in waters and soils all over the world. Conventional water treatment methods are not suitable for estrone removal due to its nonpolarity and low bioavailability. Heterogeneous photocatalysis is a promising approach; however, pristine semiconductors need optimization for efficient estrone photodegradation. Herein, we compared Zn-Cr LDH/GCN heterostructures obtained by three different synthesis methods. The influence of the GCN content in the heterostructure on photoactivity was also tested. The morphology, structure, and electronic properties of the materials were analyzed and compared. The photocatalytic kinetic tests were conducted with 1 ppm of estrone in both UV and visible light, separately. The HLDH-G50 material, obtained by the hydrothermal route and containing 50 wt % of GCN exhibited the highest photocatalytic efficiency. After 1 h, 99.5% of the estrone was degraded in visible light. In UV light, the pollutant concentration was below the detection limit after 0.5 h. The superior effectiveness was caused by numerous factors such as high homogeneity of the formed heterostructure, lower band gap energy of hydrothermal LDH, and increased photocurrent. These characteristics led to prolonged lifetimes of charge carriers, a wider light absorption range, and uniformity of the material for predictable performance. This study highlights the importance of a proper heterostructure engineering strategy for acquiring highly effective photocatalysts designed for water purification. In particular, this work provides innovative insight into comparing different synthesis methods and their influence on materials' properties.
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Affiliation(s)
- Anna Jędras
- Faculty
of Geology, Geophysics and Environmental Protection, Department of
Mineralogy, Petrography and Geochemistry, AGH University of Krakow, al. Mickiewicza 30, 30-059 Krakow, Poland
| | - Jakub Matusik
- Faculty
of Geology, Geophysics and Environmental Protection, Department of
Mineralogy, Petrography and Geochemistry, AGH University of Krakow, al. Mickiewicza 30, 30-059 Krakow, Poland
| | - Esakkinaveen Dhanaraman
- Department
of Materials Science and Engineering, National
Dong Hwa University, Shou-Feng, Hualien 97401, Taiwan
| | - Yen-Pei Fu
- Department
of Materials Science and Engineering, National
Dong Hwa University, Shou-Feng, Hualien 97401, Taiwan
| | - Grzegorz Cempura
- Faculty
of Metal Engineering and Industrial Computer Science, International
Centre of Electron Microscopy for Materials Science, AGH University of Krakow, al. Mickiewicza 30, 30-059 Krakow, Poland
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2
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Lu Q, Li X, Rene ER, Hu Q, Qiu B. Heterogeneous g-C 3N 4/polyaniline composites enhanced the conversion of organics into methane during anaerobic wastewater treatment. ENVIRONMENTAL RESEARCH 2024; 258:119480. [PMID: 38909948 DOI: 10.1016/j.envres.2024.119480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 06/12/2024] [Accepted: 06/21/2024] [Indexed: 06/25/2024]
Abstract
In this study, g-C3N4/PANI was prepared by in situ oxidative polymerization. Graphite-phase carbon nitride (g-C3N4) with surface defects was deposited onto the surface of conductive polyaniline (PANI) to form a p-n heterojunction. This construction aimed to create an efficient heterogeneous catalyst, increasing the surface defect level and active sites of the composite, and augmenting its capability to capture and transfer extracellular electrons under anaerobic conditions. This addresses the challenge of low efficiency in direct interspecies electron transfer between bacteria and archaea during anaerobic digestion for methane production. The results showed that the prepared g-C3N4/PANI increased the CH4 yield and CH4 production rate by 82% and 96%, respectively. Notably, the conductivity and XPS test results showed that the ratio of g-C3N4 to PANI was 0.15, and the composite exhibited favorable conductivity, with a uniform distribution of pyrrolic nitrogen, pyridinic nitrogen, and graphitic nitrogen, each accounting for approximately 30%. Furthermore, g-C3N4/PANI effectively enhanced the metabolic efficiency of intermediate products such as acetate and butyrate. Analysis of the microbial community structure revealed that g-C3N4/PANI led to a significant increase in the abundance of hydrogenotrophic methanogen Methanolinea (from 48% to 64%) and enriched Clostridium (a rise of 1%) with direct interspecies electron transfer capability. Microbial community function analysis demonstrated that the addition of g-C3N4/PANI boosted the activities of key enzymes involved in anaerobic digestion, including phosphate transacetylase (PTA), phospho-butyryl transferase (PTB), and NAD-independent lactate dehydrogenase (NNLD), by 47%, 135%, and 153%, respectively. This acceleration in enzymatic activity promoted the metabolism of acetyl-CoA, butyryl-CoA, and pyruvate. Additionally, the function of ABC transporters was enhanced, thereby improving the efficiency of material and energy exchange among microorganisms.
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Affiliation(s)
- Qiaoling Lu
- Beijing Key Laboratory for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China
| | - Xinyu Li
- Beijing Key Laboratory for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China
| | - Eldon R Rene
- IHE Delft Institute for Water Education, Department of Water Supply, Sanitation and Environmental Engineering, Westvest 7, 2601, DA, Delft, the Netherlands
| | - Qian Hu
- Beijing Key Laboratory for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China.
| | - Bin Qiu
- Beijing Key Laboratory for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China; Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China.
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3
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Kumar S, Choudhary P, Sharma D, Sajwan D, Kumar V, Krishnan V. Tailored Engineering of Layered Double Hydroxide Catalysts for Biomass Valorization: A Way Towards Waste to Wealth. CHEMSUSCHEM 2024:e202400737. [PMID: 38864756 DOI: 10.1002/cssc.202400737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 06/09/2024] [Accepted: 06/12/2024] [Indexed: 06/13/2024]
Abstract
Layered double hydroxides (LDH) have significant attention in recent times due to their unique characteristic properties, including layered structure, variable compositions, tunable acidity and basicity, memory effect, and their ability to transform into various kinds of catalysts, which make them desirable for various types of catalytic applications, such as electrocatalysis, photocatalysis, and thermocatalysis. In addition, the upcycling of lignocellulose biomass and its derived compounds has emerged as a promising strategy for the synthesis of valuable products and fine chemicals. The current review focuses on recent advancements in LDH-based catalysts for biomass conversion reactions. Specifically, this review highlights the structural features and advantages of LDH and LDH-derived catalysts for biomass conversion reactions, followed by a detailed summary of the different synthesis methods and different strategies used to tailor their properties. Subsequently, LDH-based catalysts for hydrogenation, oxidation, coupling, and isomerization reactions of biomass-derived molecules are critically summarized in a very detailed manner. The review concludes with a discussion on future research directions in this field which anticipates that further exploration of LDH-based catalysts and integration of cutting-edge technologies into biomass conversion reactions hold promise for addressing future energy challenges, potentially leading to a carbon-neutral or carbon-positive future.
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Affiliation(s)
- Sahil Kumar
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh, 175075, India
| | - Priyanka Choudhary
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh, 175075, India
| | - Devendra Sharma
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh, 175075, India
| | - Devanshu Sajwan
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh, 175075, India
| | - Vinit Kumar
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh, 175075, India
| | - Venkata Krishnan
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh, 175075, India
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4
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Kurnosenko SA, Silyukov OI, Rodionov IA, Baeva AS, Burov AA, Kulagina AV, Novikov SS, Zvereva IA. Hydrothermally Synthesized ZnCr- and NiCr-Layered Double Hydroxides as Hydrogen Evolution Photocatalysts. Molecules 2024; 29:2108. [PMID: 38731599 PMCID: PMC11085494 DOI: 10.3390/molecules29092108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 04/30/2024] [Accepted: 04/30/2024] [Indexed: 05/13/2024] Open
Abstract
The layered double hydroxides (LDHs) of transition metals are of great interest as building blocks for the creation of composite photocatalytic materials for hydrogen production, environmental remediation and other applications. However, the synthesis of most LDHs is reported only by the conventional coprecipitation method, which makes it difficult to control the catalyst's crystallinity. In the present study, ZnCr- and NiCr-LDHs have been successfully prepared using a facile hydrothermal approach. Varying the hydrothermal synthesis conditions allowed us to obtain target products with a controllable crystallite size in the range of 2-26 nm and a specific surface area of 45-83 m2∙g-1. The LDHs synthesized were investigated as photocatalysts of hydrogen generation from aqueous methanol. It was revealed that the photocatalytic activity of ZnCr-LDH samples grows monotonically with the increase in their average crystallite size, while that of NiCr-LDH ones reaches a maximum with intermediate-sized crystallites and then decreases due to the specific surface area reduction. The concentration dependence of the hydrogen evolution activity is generally consistent with the standard Langmuir-Hinshelwood model for heterogeneous catalysis. At a methanol content of 50 mol. %, the rate of hydrogen generation over ZnCr- and NiCr-LDHs reaches 88 and 41 μmol∙h-1∙g-1, respectively. The hydrothermally synthesized LDHs with enhanced crystallinity may be of interest for further fabrication of their nanosheets being promising components of new composite photocatalysts.
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Affiliation(s)
| | - Oleg I. Silyukov
- Department of Chemical Thermodynamics and Kinetics, Institute of Chemistry, Saint Petersburg State University, 199034 Saint Petersburg, Russia; (S.A.K.); (I.A.R.); (A.S.B.); (A.A.B.); (A.V.K.); (S.S.N.); (I.A.Z.)
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5
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Rana S, Kumar A, Lai CW, Sharma G, Dhiman P. Recent progress in ZnCr and NiCr layered double hydroxides and based photocatalysts for water treatment and clean energy production. CHEMOSPHERE 2024; 356:141800. [PMID: 38554860 DOI: 10.1016/j.chemosphere.2024.141800] [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: 09/11/2023] [Revised: 02/29/2024] [Accepted: 03/24/2024] [Indexed: 04/02/2024]
Abstract
In pursuit of advancing photocatalysts for superior performance in water treatment and clean energy generation, researchers are increasingly focusing on layered double hydroxides (LDHs) which have garnered significant attention due to their customizable properties, morphologies, distinctive 2D layered structure and flexible options for modifying anions and cations. No review has previously delved specifically into ZnCr and NiCr LDH-based photocatalysts and therefore, this review highlights the recent surge in ZnCr and NiCr-based LDHs as potential photocatalysts for their applications in water purification and renewable energy generation. The structural and fundamental characteristics of layered double hydroxides and especially ZnCr-LDHs and NiCr-LDHs are outlined. Further, the various synthesis techniques for the preparation of ZnCr-LDHs, NiCr-LDHs and their composite and heterostructure materials have been briefly discussed. The applicability of ZnCr-LDH and NiCr-LDH based photocatalysts in tackling significant issues in water treatment and sustainable energy generation is the main emphasis of this review. It focuses on photocatalytic degradation of organic pollutants in wastewater, elucidating the principles and advancements for enhancing the efficiency of these materials. It also explores their role in H2 production through water splitting, conversion of CO2 into valuable fuels and NH3 synthesis from N2, shedding light on their potential for clean energy solutions. The insights presented herein offer valuable guidance for researchers working towards sustainable solutions for environmental remediation and renewable energy generation.
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Affiliation(s)
- Sahil Rana
- International Research Centre of Nanotechnology for Himalayan Sustainability (IRCNHS), Shoolini University, India, 173229
| | - Amit Kumar
- International Research Centre of Nanotechnology for Himalayan Sustainability (IRCNHS), Shoolini University, India, 173229.
| | - Chin Wei Lai
- Nanotechnology & Catalysis Research Centre (NANOCAT), Institute for Advanced Studies (IAS), University of Malaya (UM), 50603, Kuala Lumpur, Malaysia
| | - Gaurav Sharma
- International Research Centre of Nanotechnology for Himalayan Sustainability (IRCNHS), Shoolini University, India, 173229
| | - Pooja Dhiman
- International Research Centre of Nanotechnology for Himalayan Sustainability (IRCNHS), Shoolini University, India, 173229
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6
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Yuan X, Hu X, Lin Q, Zhang S. Progress of charge carrier dynamics and regulation strategies in 2D C xN y-based heterojunctions. Chem Commun (Camb) 2024; 60:2283-2300. [PMID: 38321964 DOI: 10.1039/d3cc05976f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
Two-dimensional carbon nitrides (CxNy) have gained significant attention in various fields including hydrogen energy development, environmental remediation, optoelectronic devices, and energy storage owing to their extensive surface area, abundant raw materials, high chemical stability, and distinctive physical and chemical characteristics. One effective approach to address the challenges of limited visible light utilization and elevated carrier recombination rates is to establish heterojunctions for CxNy-based single materials (e.g. C2N3, g-C3N4, C3N4, C4N3, C2N, and C3N). The carrier generation, migration, and recombination of heterojunctions with different band alignments have been analyzed starting from the application of CxNy with metal oxides, transition metal sulfides (selenides), conductive carbon, and Cx'Ny' heterojunctions. Additionally, we have explored diverse strategies to enhance heterojunction performance from the perspective of carrier dynamics. In conclusion, we present some overarching observations and insights into the challenges and opportunities associated with the development of advanced CxNy-based heterojunctions.
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Affiliation(s)
- Xiaojia Yuan
- MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China.
| | - Xuemin Hu
- MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China.
- School of Material Engineering, Jinling Institute of Technology, Nanjing 211169, China
| | - Qiuhan Lin
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China.
| | - Shengli Zhang
- MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China.
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7
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Boumeriame H, Cherevan A, Eder D, Apaydin DH, Chafik T, Da Silva ES, Faria JL. Engineering g-C 3N 4 with CuAl-layered double hydroxide in 2D/2D heterostructures for visible-light water splitting. J Colloid Interface Sci 2023; 652:2147-2158. [PMID: 37703684 DOI: 10.1016/j.jcis.2023.08.159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 07/30/2023] [Accepted: 08/25/2023] [Indexed: 09/15/2023]
Abstract
CuAl layered double hydroxide (LDH) and polymeric carbon nitride (g-C3N4, GCNN) were assembled to construct a set of novel 2D/2D CuAl-LDH/GCNN heterostructures. These materials were tested towards H2 and O2 generation from water splitting using visible-light irradiation. Compared to pristine materials, the heterostructures displayed strongly enhanced visible-light H2 evolution, dependent on the LDH content, which acts as a cocatalyst, replacing the benchmark Pt. The optimal LDH loading was achieved for 0.2CuAl-LDH/GCNN that exhibited an increased number of active sites and showed a trade-off between charge separation efficiency and light shading, resulting in a 32-fold increase in the amount of evolved H2 compared with GCNN. In addition, the 0.2CuAl-LDH/GCNN heterostructure generated 1.5 times more O2 than GCNN. The higher photocatalytic performance was due to efficient charge carriers' separation at the heterojunction interface via an S-scheme (corroborated by work function, steady-state and time-resolved photoluminescence studies), enhanced utilisation of longer-wavelength photons (>460 nm) and higher surface area available for the catalytic reactions.
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Affiliation(s)
- Hanane Boumeriame
- LSRE-LCM - Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal; ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; Laboratory of Chemical Engineering and Valorization of Resources (LGCVR-UAE/L01FST), Faculty of Sciences and Techniques, University Abdelmalek Essaadi, Tangier, Morocco; Institute of Materials Chemistry, Technische Universität Wien (TU Wien), Getreidemarkt 9, Vienna 1060, Austria
| | - Alexey Cherevan
- Institute of Materials Chemistry, Technische Universität Wien (TU Wien), Getreidemarkt 9, Vienna 1060, Austria.
| | - Dominik Eder
- Institute of Materials Chemistry, Technische Universität Wien (TU Wien), Getreidemarkt 9, Vienna 1060, Austria
| | - Dogukan H Apaydin
- Institute of Materials Chemistry, Technische Universität Wien (TU Wien), Getreidemarkt 9, Vienna 1060, Austria
| | - Tarik Chafik
- Laboratory of Chemical Engineering and Valorization of Resources (LGCVR-UAE/L01FST), Faculty of Sciences and Techniques, University Abdelmalek Essaadi, Tangier, Morocco
| | - Eliana S Da Silva
- LSRE-LCM - Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal; ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Joaquim L Faria
- LSRE-LCM - Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal; ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
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8
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Du C, Xu J, Ding G, He D, Zhang H, Qiu W, Li C, Liao G. Recent Advances in LDH/g-C 3N 4 Heterojunction Photocatalysts for Organic Pollutant Removal. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:3066. [PMID: 38063762 PMCID: PMC10707826 DOI: 10.3390/nano13233066] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/28/2023] [Accepted: 11/30/2023] [Indexed: 04/07/2024]
Abstract
Environmental pollution has been decreased by using photocatalytic technology in conjunction with solar energy. An efficient method to obtain highly efficient photocatalysts is to build heterojunction photocatalysts by combining graphitic carbon nitride (g-C3N4) with layered double hydroxides (LDHs). In this review, recent developments in LDH/g-C3N4 heterojunctions and their applications for organic pollutant removal are systematically exhibited. The advantages of LDH/g-C3N4 heterojunction are first summarized to provide some overall understanding of them. Then, a variety of approaches to successfully assembling LDH and g-C3N4 are simply illustrated. Last but not least, certain unmet research needs for the LDH/g-C3N4 heterojunction are suggested. This review can provide some new insights for the development of high-performance LDH/g-C3N4 heterojunction photocatalysts. It is indisputable that the LDH/g-C3N4 heterojunctions can serve as high-performance photocatalysts to make new progress in organic pollutant removal.
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Affiliation(s)
- Cheng Du
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; (C.D.); (J.X.); (D.H.); (W.Q.)
- Shenzhen Mindray Bio-Medical Electronics Co., Ltd., Shenzhen 518000, China;
| | - Jialin Xu
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; (C.D.); (J.X.); (D.H.); (W.Q.)
- Shenzhen Mindray Bio-Medical Electronics Co., Ltd., Shenzhen 518000, China;
| | - Guixiang Ding
- College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
| | - Dayong He
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; (C.D.); (J.X.); (D.H.); (W.Q.)
- Shenzhen Mindray Bio-Medical Electronics Co., Ltd., Shenzhen 518000, China;
| | - Hao Zhang
- Shenzhen Mindray Bio-Medical Electronics Co., Ltd., Shenzhen 518000, China;
| | - Weibao Qiu
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; (C.D.); (J.X.); (D.H.); (W.Q.)
| | - Chunxue Li
- College of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou 350118, China;
| | - Guangfu Liao
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; (C.D.); (J.X.); (D.H.); (W.Q.)
- College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
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9
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Jie Z, Yang L, Huiyuan T, Mengyan X, Xiuhong D, Zehua W, Chunguang L, Xianying D, Jiehu C. Layered by layered construction of three novel ZnCo-LDHs/g-C 3N 4 for the removal of sunset yellow by adsorption-photocatalytic process. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:100450-100465. [PMID: 37632611 DOI: 10.1007/s11356-023-29347-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 08/09/2023] [Indexed: 08/28/2023]
Abstract
The removal of organic dyes has attracted attention by adsorption-photocatalytic synergetic process in water treatment technology. Three novel ZnCo-LDHs/g-C3N4 were successfully prepared for the first time by layered construction technique through the hydrolysis of triethanolamine in this paper. They exhibited high specific surface area which facilitates the adsorption of sunset yellow (SY) from solution to catalyst surface. All the target pollutant dyes are very effectively removed by the three ZnCo-LDHs/g-C3N4 composites through synergetic effect of adsorption and photocatalysis process under UV irradiation (λ = 365 nm). The order of synergistic degradation effect for SY is as follows: ZnCo-LDHs/g-C3N4-3 (99.6%) > ZnCo-LDHs/g-C3N4-2 (99.5%) > ZnCo-LDHs/g-C3N4-1 (99.3%) > pure g-C3N4 (77.4%) > pure ZnCo-LDHs (44.2.6%) at the initial concentration of 75 mg L-1. ZnCo-LDHs/g-C3N4-3 has the largest k value (0.0284 min-1) in SY degradation, which is 2.8 times that of g-C3N4. ZnCo-LDHs/g-C3N4-3 is a very promising adsorption-photocatalyst for the removal of SY from wastewater. The electron spin resonance experiments demonstrate that OH·, 1O2, and O2- are the dominant active species and oxides SY together. This result demonstrates that the three ZnCo-LDHs/g-C3N4 have practical applications as efficient adsorption-photocatalytic materials and also provides a synergetic strategy for the removal of SY wastewater.
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Affiliation(s)
- Zhu Jie
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, People's Republic of China
| | - Li Yang
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, People's Republic of China
| | - Tian Huiyuan
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, People's Republic of China
| | - Xia Mengyan
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, People's Republic of China
| | - Du Xiuhong
- Clinical Laboratory Medicine, Henan Medical College, Zhengzhou, People's Republic of China
| | - Wang Zehua
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, People's Republic of China
| | - Li Chunguang
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, People's Republic of China
| | - Duan Xianying
- School of Medicine, Huanghe Science and Technology University, Zhengzhou, People's Republic of China.
- Institute of Chemistry, Henan Academy of Sciences, Zhengzhou, Henan, 450002, People's Republic of China.
| | - Cui Jiehu
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, People's Republic of China.
- Henan Engineering Research Center for Ceramic Materials Interface, Zhengzhou University of Aeronautics, Zhengzhou, People's Republic of China.
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10
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Wang Y, Rong Y, Ma T, Li L, Li X, Zhu P, Zhou S, Yu J, Zhang Y. Photoelectrochemical sensors based on paper and their emerging applications in point-of-care testing. Biosens Bioelectron 2023; 236:115400. [PMID: 37271095 DOI: 10.1016/j.bios.2023.115400] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 05/01/2023] [Accepted: 05/14/2023] [Indexed: 06/06/2023]
Abstract
Point-of-care testing (POCT) technology is urgently required owing to the prevalence of the Internet of Things and portable electronics. In light of the attractive properties of low background and high sensitivity caused by the complete separation of excitation source and detection signal, the paper-based photoelectrochemical (PEC) sensors, featured with fast in analysis, disposable and environmental-friendly have become one of the most promising strategies in POCT. Therefore, in this review, the latest advances and principal issues in the design and fabrication of portable paper-based PEC sensors for POCT are systematically discussed. Primarily, the flexible electronic devices that can be constructed by paper and the reasons why they can be used in PEC sensors are expounded. Afterwards, the photosensitive materials involved in paper-based PEC sensor and the signal amplification strategies are emphatically introduced. Subsequently, the application of paper-based PEC sensors in medical diagnosis, environmental monitoring and food safety are further discussed. Finally, the main opportunities and challenges of paper-based PEC sensing platforms for POCT are briefly summarized. It provides a distinct perspective for researchers to construct paper-based PEC sensors with portable and cost-effective, hoping to enlighten the fast development of POCT soon after, as well as benefit human society.
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Affiliation(s)
- Yixiang Wang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Yumeng Rong
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Tinglei Ma
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Lin Li
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Xu Li
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Peihua Zhu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Shuang Zhou
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China.
| | - Jinghua Yu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China.
| | - Yan Zhang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China; Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Qingdao University of Science and Technology, Qingdao, 266042, China.
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11
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Ma L, Yang L, Li L, Zhang W, Cheng Y, Wang L, Zhou X, Lv Y, Liu M. Photodegradation of fleroxacin by g-C 3N 4/PPy/Ag and HPLC-MS/MS analysis of degradation pathways. RSC Adv 2023; 13:11912-11918. [PMID: 37077267 PMCID: PMC10107023 DOI: 10.1039/d3ra01485a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 04/05/2023] [Indexed: 04/21/2023] Open
Abstract
To improve the photocatalytic activity of g-C3N4, graphitic phase carbon nitride was prepared using melamine as the substrate and modified with PPy and Ag nanoparticles. The structure, morphology, and optical properties of the photocatalysts were investigated using various characterization methods such as XRD, FT-IR, TEM, XPS, and UV-vis DRS. The degradation of fleroxacin, a common quinolone antibiotic, was isolated and measured using the HPLC-MS/MS technique to trace its intermediates and deduce the main degradation pathways. The results showed that g-C3N4/PPy/Ag had high photocatalytic activity and a degradation rate of more than 90%. The fleroxacin degradation reactions were primarily oxidative ring opening of the N-methyl piperazine ring structure, defluorination reactions on fluoroethyl, HCHO, and N-methyl ethylamine removal reactions.
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Affiliation(s)
- Lei Ma
- College of Pharmacy, Jiamusi University Heilongjiang China +86 18697097060
| | - Lin Yang
- School of Basic Medical Sciences, Jiamusi University Heilongjiang China
| | - Laijun Li
- College of Pharmacy, Jiamusi University Heilongjiang China +86 18697097060
| | - Wu Zhang
- College of Pharmacy, Jiamusi University Heilongjiang China +86 18697097060
| | - Yuqing Cheng
- College of Pharmacy, Jiamusi University Heilongjiang China +86 18697097060
| | - Lei Wang
- College of Pharmacy, Jiamusi University Heilongjiang China +86 18697097060
| | - Xiaoxuan Zhou
- College of Pharmacy, Jiamusi University Heilongjiang China +86 18697097060
| | - Yuguang Lv
- College of Pharmacy, Jiamusi University Heilongjiang China +86 18697097060
| | - Mingyuan Liu
- College of Pharmacy, Jiamusi University Heilongjiang China +86 18697097060
- School of Basic Medical Sciences, Jiamusi University Heilongjiang China
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12
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Jing X, Xu Y, He Z, Li D, Wang R, Wang M. Preparation and photocatalytic activity of Zn-doped Sb2Se3 thin films. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
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13
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Arjomandi-Behzad L, Alinejad Z, Zandragh MR, Golmohamadi A, Vojoudi H. Facile synthesis of hollow spherical g-C 3N 4@LDH/NCQDs ternary nanostructure for multifunctional antibacterial and photodegradation activities. iScience 2023; 26:106213. [PMID: 36909669 PMCID: PMC9993033 DOI: 10.1016/j.isci.2023.106213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 01/30/2023] [Accepted: 02/12/2023] [Indexed: 02/17/2023] Open
Abstract
Heterojunction nanostructure construction and morphology engineering are considered to be effective approaches to improve photocatalytic performance. Herein, ternary hierarchical hollow structures consisting of cobalt-aluminum-layered double hydroxide (CoAl-LDH) nanoplates grown on hollow carbon nitride spheres (HCNS) and decorated with N-doped carbon quantum dots (NCQDs) were prepared using a templating method and a subsequent solvothermal process. The obtained HCNS@LDH/NCQD composites presented an improved performance in photocatalytic degradation of tetracycline and inactivation of E. coli compared with pure HCNS and LDH under visible light illumination. The enhanced photocatalytic activity of the designed photocatalyst could be attributed to the following reasons: (1) A special hollow structure provides more active sites and has multiple capabilities of light reflection by helping with a high specific surface area that improves the harvesting efficiency of solar light and (2) the strong synergistic effect among the constituents, which promotes separation and transfer of charge carriers and broadens the photo-response range.
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Affiliation(s)
| | | | | | - Amir Golmohamadi
- College of Health Sciences, West Chester University of Pennsylvania, West Chester, PA, USA
| | - Hossein Vojoudi
- College of Health Sciences, West Chester University of Pennsylvania, West Chester, PA, USA
- Corresponding author
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14
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Li M, Chen M, Lee SLJ, Lin S. Facile fabrication of a 2D/2D CoFe-LDH/g-C 3N 4 nanocomposite with enhanced photocatalytic tetracycline degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:4709-4720. [PMID: 35972660 DOI: 10.1007/s11356-022-22554-3] [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: 06/22/2022] [Accepted: 08/11/2022] [Indexed: 06/15/2023]
Abstract
The widespread use of tetracycline (TC) in medicine and agriculture has caused severe pollution problems in the environment. In this work, a nanocomposite comprising of CoFe-layered double hydroxides grown on graphitic carbon nitride nanosheets (CoFe-LDH/g-C3N4) with a notable two-dimensional/two-dimensional (2D/2D) heterostructure was synthesized through a facile co-precipitation method. The CoFe-LDH/g-C3N4 nanocomposite displayed significantly improved visible-light-driven photocatalytic activity towards TC degradation, compared to pristine g-C3N4 and CoFe-LDH alone. The enhanced activation efficiency was a result of intimate interfacial contact, enlarged the surface area, broadened visible-light absorbance, and enhanced photogenerated electron transfer. The scavenging experiments showed that holes (h+) and superoxide radical anions (‧O2-) played a crucial role in TC degradation. Factors including the type of TCs, initial concentration of TC, presence of ions, and the type of water matrix were investigated to evaluate the practical feasibility of the nanocomposites for TC removal from antibiotics-contaminated water. The repeated tests showed that the nanocomposites possessed good stability and recyclability. This study demonstrated the feasibility of achieving photocatalytic activity enhancement of g-C3N4 through the formation of a 2D-2D heterostructure between LDHs and g-C3N4.
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Affiliation(s)
- Mengxue Li
- College of Environmental Science and Engineering, Biomedical Multidisciplinary Innovation Research Institute, Shanghai East Hospital, Tongji University, 1239 Siping Road, Shanghai, 200092, China
- Key Laboratory of Yangtze River Water Environment, Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai, 200092, China
| | - Mengmeng Chen
- College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai, 200090, China
| | - Stephanie Ling Jie Lee
- College of Environmental Science and Engineering, Biomedical Multidisciplinary Innovation Research Institute, Shanghai East Hospital, Tongji University, 1239 Siping Road, Shanghai, 200092, China
- Key Laboratory of Yangtze River Water Environment, Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai, 200092, China
| | - Sijie Lin
- College of Environmental Science and Engineering, Biomedical Multidisciplinary Innovation Research Institute, Shanghai East Hospital, Tongji University, 1239 Siping Road, Shanghai, 200092, China.
- Key Laboratory of Yangtze River Water Environment, Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai, 200092, China.
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15
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Sun Y, Kumar V, Kim KH. The assessment of graphitic carbon nitride (g-C3N4) materials for hydrogen evolution reaction: Effect of metallic and non-metallic modifications. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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16
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Zhang J, Chen X, Chen Q, He Y, Pan M, Huang G, Bi J. Insights into Photocatalytic Degradation Pathways and Mechanism of Tetracycline by an Efficient Z-Scheme NiFe-LDH/CTF-1 Heterojunction. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4111. [PMID: 36500734 PMCID: PMC9738193 DOI: 10.3390/nano12234111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 11/20/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
Photocatalysis offers a sustainable approach for recalcitrant organic pollutants degradation, yet it is still challenging to seek robust photocatalysts for application purposes. Herein, a novel NiFe layered double hydroxide (LDH)/covalent triazine framework (CTF-1) Z-scheme heterojunction photocatalyst was rationally designed for antibiotics degradation under visible light irradiation. The NiFe-LDH/CTF-1 nanocomposites were readily obtained via in situ loading of NiFe-LDH on CTF-1 through covalent linking. The abundant coupling interfaces between two semiconductor counterparts lay the foundation for the formation of Z-scheme heterostructure, thereby effectively promoting the transfer of photogenerated electrons, inhibiting the recombination of carriers, as well as conferring the nanocomposites with stronger redox ability. Consequently, the optimal photocatalytic activity of the LDH/CTF heterojunction was significantly boosted for the degradation of a typical antibiotic, tetracycline (TC). Additionally, the photodegradation process and the mineralization of TC were further elucidated. These results envision that the LDH/CTF-1 can be a viable photocatalyst for long-term and sustainable wastewater treatment.
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Affiliation(s)
- Jinpeng Zhang
- School of Environmental Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Xiaoping Chen
- School of Environmental Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Qiaoshan Chen
- School of Environmental Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Yunhui He
- Fujian College Association Instrumental Analysis Center of Fuzhou University, Fuzhou 350108, China
| | - Min Pan
- Department of Applied Science, School of Science and Technology, Hong Kong Metropolitan University, Ho Man Tin, Kowloon, Hong Kong SAR, China
| | - Guocheng Huang
- School of Environmental Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Jinhong Bi
- School of Environmental Science and Engineering, Fuzhou University, Fuzhou 350108, China
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17
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Khamesan A, Esfahani MM, Ghasemi JB, Farzin F, Parsaei-Khomami A, Mousavi M. Graphitic-C3N4/ZnCr-layered double hydroxide 2D/2D nanosheet heterojunction: Mesoporous photocatalyst for advanced oxidation of azo dyes with in situ produced H2O2. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2022.103777] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Cheshmeh Soltani RD, Abolhasani E, Mashayekhi M, Jorfi N, Boczkaj G, Khataee A. Degradation of tetracycline antibiotic utilizing light driven-activated oxone in the presence of g-C 3N 4/ZnFe LDH binary heterojunction nanocomposite. CHEMOSPHERE 2022; 303:135201. [PMID: 35660053 DOI: 10.1016/j.chemosphere.2022.135201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/17/2022] [Accepted: 05/31/2022] [Indexed: 06/15/2023]
Abstract
In the present study, a binary heterojunction nanocomposite composed of graphitic carbon nitride (g-C3N4) and Zn/Fe-contained layered double hydroxide (ZnFe LDH) was employed as heterogeneous catalyst for the decomposition of tetracycline (TC) antibiotic utilizing Oxone and UV light irradiation. The sole use of g-C3N4/ZnFe LDH as adsorbent led to the negligible elimination of TC. In addition, the sole use of Oxone or UV (photolysis) and even their combination were not effective enough to degrade the target pollutant, while the combined process of g-C3N4/ZnFe LDH/Oxone/photolysis revealed significantly enhanced (synergistic) degradation of TC (92.4% within 30 min). Indirect detection tests for the identification of free radical species indicated the major role of both hydroxyl (•OH) and sulfate (SO4•-) radicals in the degradation of TC by the g-C3N4/ZnFe LDH/Oxone/photolysis system. The elimination of TC followed a pseudo-first order kinetic model. The complete degradation of TC (degradation efficiency of 100%) was achieved within the reaction time of 25 min when ultrasound (US) was applied as enhancing agent. Furthermore, the results of total organic carbon (TOC) analysis were used to exhibit progress in the mineralization of the pollutant. The bioassay results indicated the decreased toxicity of the process effluent toward microbial population of Escherichia coli after the treatment.
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Affiliation(s)
| | - Elham Abolhasani
- Department of Environmental Health Engineering, School of Health, Arak University of Medical Sciences, Arak, Iran
| | - Masoumeh Mashayekhi
- Department of Environmental Health Engineering, School of Health, Arak University of Medical Sciences, Arak, Iran
| | - Najla Jorfi
- Department of Environmental Health Engineering, School of Health, Arak University of Medical Sciences, Arak, Iran
| | - Grzegorz Boczkaj
- Department of Sanitary Engineering, Faculty of Civil and Environmental Engineering, Gdansk University of Technology, G. Narutowicza St. 11/12, 80-233, Gdansk, Poland; EkoTech Center, Gdansk University of Technology, G. Narutowicza St. 11/12, 80-233, Gdansk, Poland
| | - Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471, Tabriz, Iran; Department of Environmental Engineering, Gebze Technical University, 41400, Gebze, Turkey.
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19
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Li H, Gao X, Niu X, Zhang D, Fan H, Wang K. Preparation of g-C 3N 4/CQDs/Ag 2S Composite Material and Its Antibacterial Properties. J BIOMATER TISS ENG 2022. [DOI: 10.1166/jbt.2022.3122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The emergence of bacterial resistance to traditional antibiotics and its global spread has brought huge threats to human life and health, and the need for new alternative antibacterial agents has become increasingly urgent. The rapid development of nanoscience provides a potential alternative
to antibacterial therapy. In this study, g-C3N4 was synthesized using melamine as the raw material. It was then successfully combined with carbon quantum dots (CQDs) and silver sulfide to synthesize a g-C3N4/CQDs/Ag2S composite material.
Such combination narrows the band gap of g-C3N4 from 2.53 eV to 2.21 eV and enhances the photocatalytic efficiency. Consequently, it indicated photocatalytic antimicrobial effects against three strands of bacteria, Shylococcus aureus (Grampositive), Escherichia
coli (Gram-negative) and Methicillin-resistant Staphylococcus aureus under the irradiation of visible light. Other than the common pathogens, g-C3N4/CQDs/Ag2S exhibited an appreciable inhibition against the well-known drug-resistant bacteria. With
its antimicrobial features and excellent photoelectric properties, the as prepared nanocomposites show its potential in the development of new antimicrobial and photocatalytic materials.
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Affiliation(s)
- Hongxia Li
- College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou, 730050, China
| | - Xiang Gao
- College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou, 730050, China
| | - Xiaohui Niu
- College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou, 730050, China
| | - Deyi Zhang
- College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou, 730050, China
| | - Haiyan Fan
- Chemistry Department, Nazarbayev University, Astana, 010000, Kazakhstan
| | - Kunjie Wang
- College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou, 730050, China
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20
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Layered Double Hydroxide/Nanocarbon Composites as Heterogeneous Catalysts: A Review. CHEMENGINEERING 2022. [DOI: 10.3390/chemengineering6040045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The synthesis and applications of composites based on layered double hydroxides (LDHs) and nanocarbons have recently seen great development. On the one hand, LDHs are versatile 2D compounds that present a plethora of applications, from medicine to energy conversion, environmental remediation, and heterogeneous catalysis. On the other, nanocarbons present unique physical and chemical properties owing to their low-dimensional structure and sp2 hybridization of carbon atoms, which endows them with excellent charge carrier mobility, outstanding mechanical strength, and high thermal conductivity. Many reviews described the applications of LDH/nanocarbon composites in the areas of energy and photo- and electro-catalysis, but there is still scarce literature on their latest applications as heterogeneous catalysts in chemical synthesis and conversion, which is the object of this review. First, the properties of the LDHs and of the different types of carbon materials involved as building blocks of the composites are summarized. Then, the synthesis methods of the composites are described, emphasizing the parameters allowing their properties to be controlled. This highlights their great adaptability and easier implementation. Afterwards, the application of LDH/carbon composites as catalysts for C–C bond formation, higher alcohol synthesis (HAS), oxidation, and hydrogenation reactions is reported and discussed in depth.
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21
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Huang X, Xu X, Yang R, Fu X. Synergetic adsorption and photocatalysis performance of g-C3N4/Ce-doped MgAl-LDH in degradation of organic dye under LED visible light. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128738] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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22
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Lv D. Layered double hydroxides functionalized by carbonaceous materials: from preparation to energy and environmental applications. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:30865-30891. [PMID: 35094279 DOI: 10.1007/s11356-021-18179-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 12/14/2021] [Indexed: 06/14/2023]
Abstract
Along with the exponential demand for energy and pollution-free-environment, layered double hydroxides (LDHs) have gained extensive explorations because of their diverse nanostructures and tunable elemental compositions. However, the applications of LDHs are hindered by their poor activity, sluggish mass transfer, and aggregation. LDHs functionalized by carbonaceous materials (CMs) (LDH-CM) are expected to overcome the above disadvantages and even generate more excellent performance. This review first analyzes the research evolvement of LDH-CM composites during the past 25 years. Next, the advantages of LDH-CM composites are highlighted, such as morphology optimization, high electrical conductivity, more stable, good heat, and mass transfer performance. Following the synthetic strategies, including chemical assembly of LDHs and CMs, direct growth of LDH on CMs (two-step nucleation and growth and surface-confined growth) and direct CM formation on LDHs are fully discussed. Then, the recent progress achieved in LDH-CM composites for the application of energy storage and environmental protection is summarized in detail. In particular, the review illustrates the reasons why these constructing strategies can improve the performance of LDH-CM composites. Finally, challenges and future research prospects of LDH-CM composites are highlighted.
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Affiliation(s)
- Dong Lv
- National Natural Science Foundation of China, Beijing, 100085, People's Republic of China.
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23
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Hemmati-Eslamlu P, Habibi-Yangjeh A, Xu X, Wang C, Khataee A. Ultrasonic-assisted decoration of Ag 2WO 4, AgI, and Ag nanoparticles over tubular g-C 3N 4: Plasmonic photocatalysts for impressive removal of tetracycline under visible light. Photochem Photobiol Sci 2022; 21:1201-1215. [PMID: 35380390 DOI: 10.1007/s43630-022-00209-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 03/10/2022] [Indexed: 11/30/2022]
Abstract
The development of an efficient, eco-friendly, and low-cost photocatalyst is essential for addressing environmental and energy crises. In this regard, we report novel plasmonic photocatalysts through adorning tubular g-C3N4 with Ag2WO4, Ag, and AgI nanoparticles (TGCN/Ag/Ag2WO4/AgI) fabricated via a facile ultrasonic-irradiation procedure. The TGCN/Ag/Ag2WO4/AgI (20%) nanocomposite presented the excellent photocatalytic ability for removal of tetracycline hydrochloride under visible light, which was almost 45.6, 4.03, and 1.32 times more than GCN, TGCN, and TGCN/Ag/Ag2WO4 (20%) photocatalysts, respectively. Interestingly, the photocatalyst displayed impressive ability for the degradations of amoxicilline, rhodamine B, methyl orange, fuchsine, and methylene blue, which was 14.7, 52.2, 9.8, 13.2, and 7.46 times as much as pure GCN. The outcomes of DRS, PL, EIS, and photocurrent density analyses proved that the impressive activity could be related to the highly promoted harvesting of visible light, segregation of charge carriers, and improved charge migrations. In addition, trapping tests exhibited that •O2- and h+ were active species in the photocatalysis process.
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Affiliation(s)
- Paria Hemmati-Eslamlu
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Aziz Habibi-Yangjeh
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran.
| | - Xuefei Xu
- School of Optical and Electronic Information, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology, Wuhan, 430074, People's Republic of China
| | - Chundong Wang
- School of Optical and Electronic Information, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology, Wuhan, 430074, People's Republic of China.
| | - Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.,Department of Environmental Engineering, Faculty of Engineering, Gebze Technical University, 41400, Gebze, Turkey
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24
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Amini A, Karimi M, Rabbani M, Safarifard V. Cobalt-doped g-C3N4/MOF heterojunction composite with tunable band structures for photocatalysis aerobic oxidation of benzyl alcohol. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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25
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Sadeghi Rad T, Khataee A, Arefi-Oskoui S, Sadeghi Rad S, Orooji Y, Gengec E, Kobya M. Graphene-based ZnCr layered double hydroxide nanocomposites as bactericidal agents with high sonophotocatalytic performances for degradation of rifampicin. CHEMOSPHERE 2022; 286:131740. [PMID: 34352538 DOI: 10.1016/j.chemosphere.2021.131740] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 07/16/2021] [Accepted: 07/29/2021] [Indexed: 06/13/2023]
Abstract
Herein, ZnCr layered double hydroxide (ZnCr LDH), and its nanocomposites with GO and rGO were synthesized using the co-precipitation method. The samples were characterized using XRD, FT-IR, SEM, TEM, BET, and XPS techniques. The sonophotocatalytic activity of the ZnCr LDH, ZnCr LDH/GO, and ZnCr LDH/rGO was investigated via the degradation of rifampicin (RIF) in the ultrasonic bath under visible light irradiation. The synergy index of more than 1 determined for ZnCr LDH/rGO indicated the positive interaction of sonocatalysis and photocatalysis resulted by hybridizing the LDH nanosheets with rGO. The maximum sonophotocatalytic degradation efficiency of 87.3% was achieved in the presence of ZnCr LDH/rGO nanocomposite with the concentration of 1.5 g L-1 for degradation of RIF with an initial concentration of 15 mg L-1 within 60 min sonication under visible light irradiation. The addition of different scavengers indicated that hydroxyl radicals, superoxide anion radicals, and the generated holes played a dominant role in the degradation of the pollutant molecules. A possible degradation mechanism was suggested based on the intermediates. The antibacterial tests confirmed the higher antibacterial activity of ZnCr LDH/GO compared with ZnCr LDH and ZnCr LDH/rGO against Gram-positive Staphylococcus aureus.
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Affiliation(s)
- Tannaz Sadeghi Rad
- Department of Environmental Engineering, Gebze Technical University, 41400, Gebze, Turkey
| | - Alireza Khataee
- Department of Environmental Engineering, Gebze Technical University, 41400, Gebze, Turkey; Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471, Tabriz, Iran.
| | - Samira Arefi-Oskoui
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471, Tabriz, Iran
| | - Samin Sadeghi Rad
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471, Tabriz, Iran
| | - Yasin Orooji
- College of Materials Science and Engineering, Nanjing Forestry University, No. 159, Longpan Road, Nanjing, 210037, Jiangsu, People's Republic of China
| | - Erhan Gengec
- Department of Environmental Protection Technology, Kocaeli University, 41285, Kartepe, Kocaeli, Turkey
| | - Mehmet Kobya
- Department of Environmental Engineering, Gebze Technical University, 41400, Gebze, Turkey; Department of Environmental Engineering, Kyrgyz-Turkish Manas University, 720038, Bishkek, Kyrgyzstan
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26
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Zou R, Xie R, Wang L, Lin Y, Lu C. Electrochemiluminescence detection of oxygen vacancies in layered double hydroxides. Chem Commun (Camb) 2021; 58:423-426. [PMID: 34897325 DOI: 10.1039/d1cc05990d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel electrochemiluminescence (ECL) platform was established to screen oxygen vacancies in layered double hydroxides (LDHs) by fabricating graphitic carbon nitride/LDH nanocomposites. The oxygen vacancy concentrations determined by the developed ECL platform were in good agreement with those obtained by XPS.
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Affiliation(s)
- Rui Zou
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Ruyu Xie
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Liren Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Yanjun Lin
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Chao Lu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
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Ai L, Shi R, Yang J, Zhang K, Zhang T, Lu S. Efficient Combination of G-C 3 N 4 and CDs for Enhanced Photocatalytic Performance: A Review of Synthesis, Strategies, and Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2007523. [PMID: 33683817 DOI: 10.1002/smll.202007523] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 01/01/2021] [Indexed: 05/14/2023]
Abstract
Recently, heterogeneous photocatalysts have achieved much interest on account of their great potential applications in resolving many tough energy and environmental troubles around the world through an ecologically sustainable way. Heterogeneous nanocomposites composed of graphitic carbon nitride (g-C3 N4 ) and carbon dots (CDs) possess broad spectrum absorption, appropriate electronic band structures, rapid carrier mobility, abundant reserves, excellent chemical stability, and facile synthesis methods, which make them promising composite photocatalysts for suitable applications such as photocatalytic solar fuels production and contaminant decomposition. With the rapid development in photocatalysis by hybridization of g-C3 N4 and CDs, a systematic summary and prospection of performance improvement are urgent and meaningful. This review first focuses on various kinds of effectively synthetic methods of composites. Following, the strategies available for enhanced performance, including morphology optimization, spectral absorption improvement, ternary or quaternary composition hybrid, lateral or vertical heterostructures construction, heteroatom doping, and so forth, are fully discussed. Then, the applications mainly in efficient photocatalytic hydrogen generation, photocatalytic carbon dioxide reduction, and organic pollutants degradation are systematically demonstrated. Finally, the remaining issues and prospect of further development are proposed as some kind of guidance for powerful combination of g-C3 N4 and CDs with high efficiency to photocatalysis.
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Affiliation(s)
- Lin Ai
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Run Shi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Jie Yang
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Kan Zhang
- MIIT Key Laboratory of Advanced Display Material and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, P. R. China
| | - Tierui Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Siyu Lu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P. R. China
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A critical review on graphitic carbon nitride (g-C3N4)-based composites for environmental remediation. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119769] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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29
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Yu M, Zhang L, Wen J, Zhang H, Liu F, Lv Y, Zhao X. Photocatalytic Degradation of Composites with Magnesium Aluminum Hydrotalcite Derived Metal Oxides and g-C3N4. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-02166-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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30
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Zhao GQ, Hu J, Long X, Zou J, Yu JG, Jiao FP. A Critical Review on Black Phosphorus-Based Photocatalytic CO 2 Reduction Application. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2102155. [PMID: 34309180 DOI: 10.1002/smll.202102155] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/22/2021] [Indexed: 06/13/2023]
Abstract
Energy shortages and greenhouse effects are two unavoidable problems that need to be solved. Photocatalytically converting CO2 into a series of valuable chemicals is considered to be an effective means of solving the above dilemmas. Among these photocatalysts, the utilization of black phosphorus for CO2 photocatalytic reduction deserves a lightspot not only for its excellent catalytic activity through different reaction routes, but also on account of the great preponderance of this relatively cheap catalyst. Herein, this review offers a summary of the recent advances in synthesis, structure, properties, and application for CO2 photocatalytic reduction. In detail, the review starts from the basic principle of CO2 photocatalytic reduction. In the following section, the synthesis, structure, and properties, as well as CO2 photocatalytic reduction process of black phosphorus-based photocatalyst are discussed. In addition, some possible influencing factors and reaction mechanism are also summarized. Finally, a summary and the possible future perspectives of black phosphorus-based photocatalyst for CO2 reduction are established.
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Affiliation(s)
- Guo-Qing Zhao
- School of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P. R. China
| | - Jun Hu
- School of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P. R. China
| | - Xuan Long
- School of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P. R. China
| | - Jiao Zou
- School of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P. R. China
| | - Jin-Gang Yu
- School of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P. R. China
| | - Fei-Peng Jiao
- School of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P. R. China
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31
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Yang ZZ, Zhang C, Zeng GM, Tan XF, Huang DL, Zhou JW, Fang QZ, Yang KH, Wang H, Wei J, Nie K. State-of-the-art progress in the rational design of layered double hydroxide based photocatalysts for photocatalytic and photoelectrochemical H2/O2 production. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214103] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Wang L, Zhu Z, Wang F, Qi Y, Zhang W, Wang C. State-of-the-art and prospects of Zn-containing layered double hydroxides (Zn-LDH)-based materials for photocatalytic water remediation. CHEMOSPHERE 2021; 278:130367. [PMID: 33813335 DOI: 10.1016/j.chemosphere.2021.130367] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 02/27/2021] [Accepted: 03/20/2021] [Indexed: 06/12/2023]
Abstract
With the rapid worldwide development of industry and human activities, increasing amounts of multifarious contaminants have significantly threatened environmental ecosystems and human health. Solar photocatalytic decontamination, as an environmentally friendly technology, has been regarded as a good approach to eliminate water pollutants. To date, various photocatalysts have been developed for the purpose of water remediation. Zn-containing layered double hydroxides (Zn-LDHs) and their derivatives are promising candidates due to their suitable band edge positions (oxidation-reduction potentials) for high photocatalytic performances, flexible properties derived from adjustable components and tailorable electronic structures, chemical stabilities, and low toxicities. This review focuses on the fabrication and modification of Zn-LDHs and their photocatalytic applications for the elimination of contaminants in water, including the degradation of toxic organic pollutants, transfer of hazardous heavy metals to lower toxicity heavy metals, and bacterial inactivation. The mechanisms involved in the photocatalytic processes are also thoroughly reviewed. Finally, the emerging scientific and engineering opportunities and challenges in environmental photocatalysis are presented. This review provides basic insights into the construction of Zn-LDH-based materials with high photocatalytic activities and new perspectives on their applications for the photocatalytic elimination of contaminants, which is helpful for the development of photocatalysis for environmental remediation from the lab to industry.
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Affiliation(s)
- Lan Wang
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xian, 710021, China; Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics & Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences, Urumqi, 830011, China.
| | - Zhiqiang Zhu
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xian, 710021, China
| | - Fu Wang
- Shanghai Med-X Engineering Research Center, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Yihao Qi
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xian, 710021, China
| | - Wei Zhang
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xian, 710021, China
| | - Chuanyi Wang
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xian, 710021, China
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Feng Y, Jiang X, Tang L, Lin D, Huo Y, Xie F, Zheng Q. Mn-Doped NiFe Layered Double Hydroxide Nanosheets Decorated by Co(OH)2 Nanosheets: A 3-Dimensional Core–Shell Catalyst for Efficient Oxygen Evolution Reaction. Catal Letters 2021. [DOI: 10.1007/s10562-021-03766-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Xia S, Zhang G, Gao Z, Meng Y, Xie B, Lu H, Ni Z. 3D hollow Bi 2O 3@CoAl-LDHs direct Z-scheme heterostructure for visible-light-driven photocatalytic ammonia synthesis. J Colloid Interface Sci 2021; 604:798-809. [PMID: 34303173 DOI: 10.1016/j.jcis.2021.07.063] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/05/2021] [Accepted: 07/11/2021] [Indexed: 01/17/2023]
Abstract
In this paper, the novel 3D hollow Z-scheme heterojunction photocatalysts based on Bi2O3 and CoAl layered double hydroxides (Bi2O3@CoAl-LDHs) were prepared for efficient visible-light-driven photocatalytic ammonia synthesis. The synthesized nanohybrid exhibits excellent photocatalytic ammonia synthesis performance (48.7 μmol·L-1·h-1) and structural stability, which is primarily attributed to the fact that Z-scheme heterojunction significantly enhanced lifetime of photogenerated carriers (6.22 ns) and transfer efficiency of surface photogenerated electrons (72.5%). Strict control experiments and nitrogen isotope labeling results show that nitrogen and hydrogen in the produced ammonia come from nitrogen and water in the reactant respectively. Electron paramagnetic resonance (EPR) experiments and density functional theory (DFT) calculations further reveal that the built-in electric field due to the difference between Bi2O3 and CoAl-LDHs is the key to constructing the Z-scheme heterojunction. In addition, results of partial density of states (PDOS) show that Co in Bi2O3@CoAl-LDHs composite is the active site for photocatalytic N2 fixation.
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Affiliation(s)
- Shengjie Xia
- Department of Chemistry, College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, PR China.
| | - Guanhua Zhang
- Department of Chemistry, College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, PR China
| | - Zhiyan Gao
- Department of Chemistry, College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, PR China
| | - Yue Meng
- School of Life Science, Huzhou University, 759 East Erhuan Road, Huzhou 313000, PR China; Department of Life and Health Sciences, Huzhou College, 313000 Huzhou, PR China
| | - Bo Xie
- Department of Chemistry, College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, PR China
| | - Hanfeng Lu
- Department of Chemistry, College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, PR China
| | - Zheming Ni
- Department of Chemistry, College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, PR China
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35
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Yang S, Li X, Zeng G, Cheng M, Huang D, Liu Y, Zhou C, Xiong W, Yang Y, Wang W, Zhang G. Materials Institute Lavoisier (MIL) based materials for photocatalytic applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213874] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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36
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Dinari M, Dadkhah F. Visible light photodegradation of 4‐nitrophenol by new high‐performance and easy recoverable Fe
3
O
4
/Ag
2
O‐LDH hybrid photocatalysts. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6355] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Mohammad Dinari
- Department of Chemistry Isfahan University of Technology Isfahan Iran
| | - Firooze Dadkhah
- Department of Chemistry Isfahan University of Technology Isfahan Iran
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37
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Yang C, Zhang G, Meng Y, Pan G, Ni Z, Xia S. Direct Z-scheme CeO 2@LDH core-shell heterostructure for photodegradation of Rhodamine B by synergistic persulfate activation. JOURNAL OF HAZARDOUS MATERIALS 2021; 408:124908. [PMID: 33418524 DOI: 10.1016/j.jhazmat.2020.124908] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 12/16/2020] [Accepted: 12/17/2020] [Indexed: 06/12/2023]
Abstract
Photocatalytic activation of persulfate (PAPS) is considered an efficient and green approach for the mitigation of organic pollutants because of its advantages in low energy consumption and high reusability of photocatalysts. Herein, direct Z-scheme CeO2@LDH heterojunction photocatalyst with a core-shell structure is constructed. We reveal that CeO2@LDH exhibits excellent persulfate (PS) activation performance and high degradation efficiency of RhB under visible light irradiation. Control experiments by quenching catalytically active radicals and analysis of electron paramagnetic resonance (ESR) spectra suggest that the sulfate radical (SO4·-) generated by photocatalytic activation of PS, together with superoxide radical (·O2-) and hydroxyl radical (·OH), degrade pollutants synergistically. Density functional theory (DFT) calculations indicate that the built-in electric field across the surface of CeO2 and LDH is the intrinsic driving force for the efficient transfer of hot carriers in the Z-scheme heterojunction. The construction of this transfer path can effectively engineer the interfacial band structure and inhibit the recombination of photogenerated electron-hole pairs and promote their transportation. Meanwhile, electrons were found to accumulate at the conduction band (CB) of LDHs and holes populate at valence band (VB) of CeO2, generating more active species for photodegradation of RhB. We demonstrate that the Z-scheme heterojunction photocatalyst activated PS system (Z-scheme/PS) is a promising method to degrade RhB and potentially organic pollutants in general.
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Affiliation(s)
- Chao Yang
- Department of Chemistry & Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Guanhua Zhang
- Department of Chemistry, College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, PR China
| | - Yue Meng
- School of Life Science, Huzhou University, 759 East Erhuan Road, Huzhou 313000, PR China; Qiuzhen College, Huzhou University, Huzhou 313000, PR China.
| | - Guoxiang Pan
- School of Life Science, Huzhou University, 759 East Erhuan Road, Huzhou 313000, PR China.
| | - Zheming Ni
- Department of Chemistry, College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, PR China
| | - Shengjie Xia
- Department of Chemistry, College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, PR China.
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38
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Megala S, Ravi P, Maadeswaran P, Navaneethan M, Sathish M, Ramesh R. The construction of a dual direct Z-scheme NiAl LDH/g-C 3N 4/Ag 3PO 4 nanocomposite for enhanced photocatalytic oxygen and hydrogen evolution. NANOSCALE ADVANCES 2021; 3:2075-2088. [PMID: 36133087 PMCID: PMC9418587 DOI: 10.1039/d0na01074j] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Accepted: 02/03/2021] [Indexed: 06/16/2023]
Abstract
Dual direct Z-scheme photocatalysts for overall water decomposition have demonstrated strong redox abilities and the efficient separation of photogenerated electron-hole pairs. Overall water splitting utilizing NiAl-LDH-based binary and ternary nanocomposites has been extensively investigated. The synthesized binary and ternary nanocomposites were characterized via XRD, FTIR, SEM, HRTEM, XPS, UV-DRS, and photoelectrochemical measurements. The surface wettability properties of the prepared nanocomposites were measured via contact angle measurements. The application of the NiAl-LDH/g-C3N4/Ag3PO4 ternary nanocomposite was investigated for photocatalytic overall water splitting under light irradiation. In this work, we found that in the presence of Ag3PO4, the evolution of H2 and O2 is high over LCN30, and 2.8- fold (O2) and 1.4-fold (H2) activity increases can be obtained compared with the use of LCN30 alone. It is proposed that Ag3PO4 is involved in the O2 evolution reaction during water oxidation and g-C3N4 is involved in overall water splitting. Our work not only reports overall water splitting using NiAl-LDH-based nanocomposites but it also provides experimental evidence for understanding the possible reaction process and the mechanism of photocatalytic water splitting. Photoelectrochemical measurements confirmed the better H2 and O2 evolution abilities of NiAl-LDH/g-C3N4/Ag3PO4 in comparison with NiAl LDH, g-C3N4, Ag3PO4, and LCN30. The observed improvement in the gas evolution properties of NiAl LDH in the presence of Ag3PO4 is due to the formation of a dual direct Z-scheme, which allows for the easier and faster separation of charge carriers. More importantly, the LCNAP5 heterostructure shows high levels of H2 and O2 evolution, which are significantly enhanced compared with LCN30 and pure NiAl LDH.
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Affiliation(s)
- S Megala
- Department of Physics, Periyar University Salem-636011 Tamil Nadu India
| | - P Ravi
- Electrochemical Power Sources Division, Central Electrochemical Research Institute Karaikudi-630006 Tamil Nadu India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 India
| | - P Maadeswaran
- Department of Energy Science, Periyar University Salem-636011 Tamil Nadu India
| | - M Navaneethan
- Nanotechnology Research Center (NRC), Faculty of Engineering and Technology, SRM Institute of Science and Technology Kattankulathur Chennai 603203 Tamil Nadu India
| | - M Sathish
- Electrochemical Power Sources Division, Central Electrochemical Research Institute Karaikudi-630006 Tamil Nadu India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 India
| | - R Ramesh
- Department of Physics, Periyar University Salem-636011 Tamil Nadu India
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39
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Modak A, Ghosh A, Bhaumik A, Chowdhury B. CO 2 hydrogenation over functional nanoporous polymers and metal-organic frameworks. Adv Colloid Interface Sci 2021; 290:102349. [PMID: 33780826 DOI: 10.1016/j.cis.2020.102349] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 12/16/2020] [Accepted: 12/16/2020] [Indexed: 12/21/2022]
Abstract
CO2 is one of the major environmental pollutants and its mitigation is attracting huge attention over the years due to continuous increase in this greenhouse gas emission in the atmosphere. Being environmentally hazardous and plentiful presence in nature, CO2 utilization as C1 resource into fuels and feedstock is very demanding from the green chemistry perspectives. To accomplish this CO2 utilization issue, functional organic materials like porous organic polymers (POPs), covalent organic frameworks (COFs) as well as organic-inorganic hybrid materials like metal-organic frameworks (MOFs), having characteristics of large surface area, high thermal stability and tunability in the porous nanostructures play significant role in designing the suitable catalyst for the CO2 hydrogenation reactions. Although CO2 hydrogenation is a widely studied and emerging area of research, till date review exclusively focused on designing POPs, COFs and MOFs bearing reactive functional groups is very limited. A thorough literature review on this matter will enrich our knowledge over the CO2 hydrogenation processes and the catalytic sites responsible for carrying out these chemical transformations. We emphasize recent state-of-the art developments in POPs/COFs/MOFs having unique functionalities and topologies in stabilizing metallic NPs and molecular complexes for the CO2 reduction reactions. The major differences between MOFs and porous organics are critically summarized in the outlook section with the aim of the future benefit in mitigating CO2 emission from ambient air.
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40
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He Y, Wang Z, Wang H, Wang Z, Zeng G, Xu P, Huang D, Chen M, Song B, Qin H, Zhao Y. Metal-organic framework-derived nanomaterials in environment related fields: Fundamentals, properties and applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213618] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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41
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Biswal L, Nayak S, Parida K. Recent progress on strategies for the preparation of 2D/2D MXene/g-C3N4 nanocomposites for photocatalytic energy and environmental applications. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02156c] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
This review summarizes the possible synthetic routes, optical and morphological features to explore the 2D/2D interface and mechanism path in 2D/2D MXene/g-C3N4 nanocomposites for photocatalytic applications.
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Affiliation(s)
- Lijarani Biswal
- Centre for Nano Science and Nano Technology
- Siksha ‘O’ Anusandhan Deemed to be University
- Bhubaneswar-751030
- India
| | - Susanginee Nayak
- Centre for Nano Science and Nano Technology
- Siksha ‘O’ Anusandhan Deemed to be University
- Bhubaneswar-751030
- India
| | - Kulamani Parida
- Centre for Nano Science and Nano Technology
- Siksha ‘O’ Anusandhan Deemed to be University
- Bhubaneswar-751030
- India
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42
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Song B, Chen M, Zeng G, Gong J, Shen M, Xiong W, Zhou C, Tang X, Yang Y, Wang W. Using graphdiyne (GDY) as a catalyst support for enhanced performance in organic pollutant degradation and hydrogen production: A review. JOURNAL OF HAZARDOUS MATERIALS 2020; 398:122957. [PMID: 32474321 DOI: 10.1016/j.jhazmat.2020.122957] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/07/2020] [Accepted: 05/13/2020] [Indexed: 06/11/2023]
Abstract
The development of carbon materials brings a new two-dimensional catalyst support, graphdiyne (GDY), which is attracting increasing interest in the field of catalysis. This article presents a systematical review of recent studies about the characteristics, design strategies, and applications of GDY-supported catalysts. The sp- and sp2-hybridized carbon, high electrical conductivity, direct band gap, and high intrinsic carrier mobility are key characteristics for GDY to serve as a competitive catalyst support. Hydrothermal method (or solvothermal method), GDY in-situ growth, and electrochemical deposition are commonly used to load catalysts on GDY support. In the applications of GDY-supported photocatalysts, GDY mainly serves as an electron or hole transfer material. For the electrocatalytic hydrogen production, the unique electronic structure and high electrical conductivity of GDY can promote the electron transfer and water splitting kinetics. This review is expected to provide meaningful insight and guidance for the design of GDY-supported catalysts and their applications.
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Affiliation(s)
- Biao Song
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Ming Chen
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
| | - Jilai Gong
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
| | - Maocai Shen
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Weiping Xiong
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Chengyun Zhou
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Xiang Tang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Yang Yang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Wenjun Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
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43
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Manganese ferrite/porous graphite carbon nitride composites for U(VI) adsorption from aqueous solutions. J Radioanal Nucl Chem 2020. [DOI: 10.1007/s10967-020-07281-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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44
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Zhu M, Liu Y, Chen M, Gan D, Wang M, Zeng H, Liao M, Chen J, Tu W, Niu W. Ultrahigh flux of graphene oxide membrane modified with orientated growth of MOFs for rejection of dyes and oil-water separation. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.04.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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45
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Yang Y, Li X, Zhou C, Xiong W, Zeng G, Huang D, Zhang C, Wang W, Song B, Tang X, Li X, Guo H. Recent advances in application of graphitic carbon nitride-based catalysts for degrading organic contaminants in water through advanced oxidation processes beyond photocatalysis: A critical review. WATER RESEARCH 2020; 184:116200. [PMID: 32712506 DOI: 10.1016/j.watres.2020.116200] [Citation(s) in RCA: 163] [Impact Index Per Article: 40.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 07/16/2020] [Accepted: 07/17/2020] [Indexed: 06/11/2023]
Abstract
Advanced oxidation processes (AOPs) have attracted much interest in the field of water treatment owing to their high removal efficiency for refractory organic contaminants. Graphitic carbon nitride (g-C3N4)-based catalysts with high performance and cost effectiveness are promising heterogeneous catalysts for AOPs. Most research on g-C3N4-based catalysts focuses on photocatalytic oxidation, but increasingly researchers are paying attention to the application of g-C3N4-based catalysts in other AOPs beyond photocatalysis. This review aims to concisely highlight recent state-of-the-art progress of g-C3N4-based catalysts in AOPs beyond photocatalysis. Emphasis is made on the application of g-C3N4-based catalysts in three classical AOPs including Fenton-based processes, catalytic ozonation and persulfates activation. The catalytic performance and involved mechanism of g-C3N4-based catalysts in these AOPs are discussed in detail. Meanwhile, the effect of water chemistry including pH, water temperature, natural organic matter, inorganic anions and dissolved oxygen on the catalytic performance of g-C3N4-based catalysts are summarized. Moreover, the reusability, stability and toxicity of g-C3N4-based catalysts in water treatment are also mentioned. Lastly, perspectives on the major challenges and opportunities of g-C3N4-based catalysts in these AOPs are proposed for better developments in the future research.
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Affiliation(s)
- Yang Yang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Xin Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Chengyun Zhou
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Weiping Xiong
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China.
| | - Danlian Huang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China.
| | - Chen Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China.
| | - Wenjun Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Biao Song
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Xiang Tang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Xiaopei Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Hai Guo
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
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Enesca A, Andronic L. The Influence of Photoactive Heterostructures on the Photocatalytic Removal of Dyes and Pharmaceutical Active Compounds: A Mini-Review. NANOMATERIALS 2020; 10:nano10091766. [PMID: 32906732 PMCID: PMC7560097 DOI: 10.3390/nano10091766] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/26/2020] [Accepted: 09/03/2020] [Indexed: 12/17/2022]
Abstract
The diversification of pollutants type and concentration in wastewater has underlined the importance of finding new alternatives to traditional treatment methods. Advanced oxidation processes (AOPs), among others, are considered as promising candidate to efficiently remove organic pollutants such as dyes or pharmaceutical active compounds (PhACs). The present minireview resumes several recent achievements on the implementation and optimization of photoactive heterostructures used as photocatalysts for dyes and PhACs removal. The paper is focused on various methods of enhancing the heterostructure photocatalytic properties by optimizing parameters such as synthesis methods, composition, crystallinity, morphology, pollutant concentration and light irradiation.
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Mallakpour S, Hatami M, Hussain CM. Recent innovations in functionalized layered double hydroxides: Fabrication, characterization, and industrial applications. Adv Colloid Interface Sci 2020; 283:102216. [PMID: 32763493 DOI: 10.1016/j.cis.2020.102216] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 07/25/2020] [Accepted: 07/26/2020] [Indexed: 12/21/2022]
Abstract
Layered Double Hydroxides (LDHs) are a group of hydrotalcite-like nano-sized materials with cationic layers and exchangeable interlayer anions. The wide range of divalent and trivalent cationic metals and anionic compounds are employed in the synthesis of LDH materials, which have improved their importance among the researchers. Because of their high anion exchange property, memory effect, tunable behavior, bio-friendly, simple preparation, and their affordability, these nano-materials are essentially interested today. Modification of LDHs improves their behaviours to make them appropriate in industrial fields, including biological, adsorbent, mechanical, optical, thermal, electrical fields, etc. This review has critically discussed the structural features, main properties, and also clarified the most important methods of modification and intercalation of LDH nano-materials. Moreover, some novel reported researches related to the successful modification of LDH materials have been characterized and briefly the advantages, disadvantages, and applications are presented in the industrial fields.
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Wang Z, Zhang L, Fang P, Wang L, Wang W. Study on Simultaneous Removal of Dye and Heavy Metal Ions by NiAl-Layered Double Hydroxide Films. ACS OMEGA 2020; 5:21805-21814. [PMID: 32905424 PMCID: PMC7469369 DOI: 10.1021/acsomega.0c02875] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 08/03/2020] [Indexed: 05/04/2023]
Abstract
Herein, nickel-aluminum-layered double hydroxide (NiAl-LDH) films were prepared by the hydrothermal method. Based on the photoinduced reduction ability and degradation of LDHs on heavy metal ions and organic compounds, NiAl-LDH films displayed favorable simultaneous removal performance. Benefiting from the electron traps of heavy metals reduced from solution, the coexisting metal ions improved the photocatalytic activity of NiAl-LDH films on methyl orange. The higher the Fermi level of coexisting metal ion was, the higher the photocatalytic degradation rate of methyl orange obtained. Meanwhile, the removal rates of heavy metal ions (Ag+, Pb2+, and Cu2+) from wastewater were both enhanced and could reach 95%. NiAl-LDH films showed affinity toward Ag+. Furthermore, NiAl-LDH films are tightly coupled with the substrate, providing active sites and a simple method for the catalyst recovery. This study provides new insights into the simultaneous removal of heavy metal ions and organic pollutants using LDH films.
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Synthesis and Photocatalytic Activity of Ni–Fe Layered Double Hydroxide Modified Sulphur Doped Graphitic Carbon Nitride (SGCN/Ni–Fe LDH) Photocatalyst for 2,4-Dinitrophenol Degradation. Top Catal 2020. [DOI: 10.1007/s11244-020-01359-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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α-Fe2O3/Ag/g-C3N4 Core-Discontinuous Shell Nanocomposite as an Indirect Z-Scheme Photocatalyst for Degradation of Ethylbenzene in the Air Under White LEDs Irradiation. Catal Letters 2020. [DOI: 10.1007/s10562-020-03236-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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