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Shen S, Gao Q, Hu Z, Fan D. A fingerprint-like supramolecular-assembled Ag 3PO 4/polydopamine/g-C 3N 4 heterojunction nanocomposite for enhanced solar-driven oxygen evolution in vivo. J Colloid Interface Sci 2024; 663:212-226. [PMID: 38401442 DOI: 10.1016/j.jcis.2024.02.087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 02/05/2024] [Accepted: 02/10/2024] [Indexed: 02/26/2024]
Abstract
Biocompatible photocatalytic water-splitting systems are promising for tissue self-oxygenation. Herein, a structure-function dual biomimetic fingerprint-like silver phosphate/polydopamine/graphitic carbon nitride (Ag3PO4/PDA/g-C3N4) heterojunction nanocomposite is proposed for enhanced solar-driven oxygen (O2) evolution in vivo in situ. Briefly, a porous nitrogen-defected g-C3N4 nanovoile (CN) is synthesized as the base. Dopamine molecules are controllably inserted into the CN interlayer, forming PDA spacers (4.28 nm) through self-polymerization-induced supramolecular-assembly. Ag3PO4 nanoparticles are then in situ deposited to create Ag3PO4/PDA/CN. The fingerprint-like structure of PDA/CN enlarges the layer spacing, thereby accelerating mass transfer and increasing reaction sites. The PDA spacer roles as excellent light harvester, electronic-ionic conductor, and redox pair through conformational changes, resulting in tailored electronic band structure, optimized carrier behavior, and reduced electrochemical impedance. In physiological conditions, Ag3PO4/PDA/CN exhibits O2 evolution rate of 45.35 μmol⋅g-1⋅h-1, 9-fold of bulk g-C3N4. The biocompatibility and in vivo oxygen supply effectiveness for biomedical applications have been verified in animal models.
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Affiliation(s)
- Shihong Shen
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an 710069, PR China; Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Xi'an 710069, PR China
| | - Qian Gao
- School of Physics, Nankai University, Tianjin 300071, PR China
| | - Zhenpeng Hu
- School of Physics, Nankai University, Tianjin 300071, PR China.
| | - Daidi Fan
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an 710069, PR China; Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Xi'an 710069, PR China.
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2
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Chen C, Wang B, Xu J, Fei L, Raza S, Li B, Zeng Q, Shen L, Lin H. Recent Advancement in Emerging MXene-Based Photocatalytic Membrane for Revolutionizing Wastewater Treatment. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2311427. [PMID: 38733219 DOI: 10.1002/smll.202311427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 04/23/2024] [Indexed: 05/13/2024]
Abstract
MXene-based photocatalytic membranes provide significant benefits for wastewater treatment by effectively combining membrane separation and photocatalytic degradation processes. MXene represents a pioneering 2D photocatalyst with a variable elemental composition, substantial surface area, abundant surface terminations, and exceptional photoelectric performance, offering significant advantages in producing high-performance photocatalytic membranes. In this review, an in-depth overview of the latest scientific progress in MXene-based photocatalytic membranes is provided. Initially, a brief introduction to the structure and photocatalytic capabilities of MXene is provided, highlighting their pivotal role in promoting the photocatalytic process. Subsequently, in pursuit of the optimal MXene-based photocatalytic membrane, critical factors such as the morphology, hydrophilicity, and stability of MXenes are meticulously taken into account. Various preparation strategies for MXene-based photocatalytic membranes, including blending, vacuum filtration, and dip coating, are also discussed. Furthermore, the application and mechanism of MXene-based photocatalytic membranes in micropollutant removal, oil-water separation, and antibacterial are examined. Lastly, the challenges in the development and practical application of MXene-based photocatalytic membranes, as well as their future research direction are delineated.
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Affiliation(s)
- Cheng Chen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Boya Wang
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Jiujing Xu
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Lingya Fei
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Saleem Raza
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Bisheng Li
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Qianqian Zeng
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Liguo Shen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Hongjun Lin
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
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Yavuzturk Gul B, Orhun Teber O, Tuncay G, Pekgenc E, Arabi N, Hemmati-Eslamlu P, Habibi-Yangjeh A, Vatanpour V, Koyuncu I. Modification of PAN electrospun nanofiber membranes with g-C 3N 4 nanotubes/carbon dots to enhance MBR performance. CHEMOSPHERE 2024; 349:140866. [PMID: 38056719 DOI: 10.1016/j.chemosphere.2023.140866] [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: 07/31/2023] [Revised: 11/26/2023] [Accepted: 11/29/2023] [Indexed: 12/08/2023]
Abstract
This study is dedicated to the enhancement of electrospun polyacrylonitrile (PAN) nanofiber membranes for their application in membrane bioreactor (MBR) processes. The improvement is achieved through the incorporation of graphitic carbon nitride nanotubes/carbon dots (g-C3N4 NT/CDs) and subsequent heat post-treatments at varying temperatures. Notably, the hot-pressing methodology effectively mitigates surface roughness and significantly reduces issues related to peeling during nanofiber experimentation. Our results demonstrate that the introduction of 0.5 wt% of g-C3N4 NT/CDs leads to a substantial enhancement in water flux. In particular, nanocomposite membranes subjected to hot-pressing at 90 °C for 10 min exhibited an impressive flux recovery ratio (FRR) of 70%. Furthermore, the heat-treated nanocomposite membranes exhibited remarkable antifouling properties and significantly reduced fouling rates when compared to their heat-treated bare counterparts. This study underscores the noteworthy potential of g-C3N4 NT/CDs-modified PAN nanofiber membranes to substantially elevate MBR performance, firmly positioning them as highly promising candidates for critical applications in the domains of water and wastewater treatment. However, it is imperative to underscore that the existing written material necessitates a comprehensive overhaul to align with the provided structural framework.
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Affiliation(s)
- Bahar Yavuzturk Gul
- National Research Center on Membrane Technologies (MEM-TEK), Istanbul Technical University, Maslak 34469, Istanbul, Turkey; Department of Environmental Engineering, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey
| | - Oguz Orhun Teber
- National Research Center on Membrane Technologies (MEM-TEK), Istanbul Technical University, Maslak 34469, Istanbul, Turkey; Nano Science and Nano Engineering Department, Istanbul Technical University, Maslak, Istanbul 34469, Turkey
| | - Gizem Tuncay
- National Research Center on Membrane Technologies (MEM-TEK), Istanbul Technical University, Maslak 34469, Istanbul, Turkey; Department of Environmental Engineering, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey
| | - Enise Pekgenc
- National Research Center on Membrane Technologies (MEM-TEK), Istanbul Technical University, Maslak 34469, Istanbul, Turkey; Department of Environmental Engineering, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey
| | - Nigar Arabi
- National Research Center on Membrane Technologies (MEM-TEK), Istanbul Technical University, Maslak 34469, Istanbul, Turkey
| | - 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
| | - Vahid Vatanpour
- National Research Center on Membrane Technologies (MEM-TEK), Istanbul Technical University, Maslak 34469, Istanbul, Turkey; Department of Applied Chemistry, Faculty of Chemistry, Kharazmi University, 15719-14911, Tehran, Iran.
| | - Ismail Koyuncu
- National Research Center on Membrane Technologies (MEM-TEK), Istanbul Technical University, Maslak 34469, Istanbul, Turkey; Department of Environmental Engineering, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey.
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Ren Z, Ma H, Geng J, Liu C, Song C, Lv Y. ZnO QDs/GO/g-C 3N 4 Preparation and Photocatalytic Properties of Composites. MICROMACHINES 2023; 14:1501. [PMID: 37630037 PMCID: PMC10456475 DOI: 10.3390/mi14081501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/14/2023] [Accepted: 07/21/2023] [Indexed: 08/27/2023]
Abstract
Using an ultrasound-assisted chemical technique, ZnO quantum dot and ZnO composites were created. The optical characteristics and structural details of these composites were examined using TEM, XRD, XPS, FT-IR, UV-vis, and BET. The results revealed that both the ZnO quantum dot composite and ZnO composite exhibited outstanding optical properties, making them suitable for photocatalytic reactions. In order to analyze the photocatalytic performance, a degradation experiment was conducted using Rhodamine B solution as the simulation dye wastewater. The experiment demonstrated that the degradation of Rhodamine B followed the first-order reaction kinetics equation when combined with the photocatalytic reaction kinetics. Moreover, through cyclic stability testing, it was determined that the ZnO QDs-GO-g-C3N4 composite sample showed good stability and could be reused. The degradation rates of Rhodamine B solution using ZnO-GO-g-C3N4 and ZnO QDs-GO-g-C3N4 reached 95.25% and 97.16%, respectively. Furthermore, free-radical-trapping experiments confirmed that ·O2- was the main active species in the catalytic system and its photocatalytic mechanism was elucidated. The photocatalytic oxidation of ZnO quantum dots in this study has important reference value and provides a new idea for the subsequent research.
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Affiliation(s)
- Zhixin Ren
- College of Pharmacy, Jiamusi University, Jiamusi 154000, China
| | - Huachao Ma
- College of Pharmacy, Jiamusi University, Jiamusi 154000, China
| | - Jianxin Geng
- College of Pharmacy, Jiamusi University, Jiamusi 154000, China
| | - Cuijuan Liu
- College of Pharmacy, Jiamusi University, Jiamusi 154000, China
| | - Chaoyu Song
- College of Pharmacy, Jiamusi University, Jiamusi 154000, China
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yuguang Lv
- College of Pharmacy, Jiamusi University, Jiamusi 154000, China
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Wen J, Zhou L, Tang Q, Xiao X, Sun S. Photocatalytic degradation of organic pollutants by carbon quantum dots functionalized g-C 3N 4: A review. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 262:115133. [PMID: 37327524 DOI: 10.1016/j.ecoenv.2023.115133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/31/2023] [Accepted: 06/10/2023] [Indexed: 06/18/2023]
Abstract
Graphitic carbon nitride (g-C3N4) has received much attention due to its unique characteristics of stable physicochemical features, facile preparation, and inexpensive cost. However, the bulk g-C3N4 has a weak capacity for pollutant degradation and needs to be modified for real application. Therefore, extensive research has been done on g-C3N4, and the discovery of the novel zero-dimensional nanomaterials known as carbon quantum dots (CQDs) provided it with a unique modification option. In this review, the development for the removal of organic pollutants by g-C3N4/CQDs was discussed. Firstly, the preparation of g-C3N4/CQDs were introduced. Then, the application and the degradation mechanism of g-C3N4/CQDs were briefly described. And the discussion of the influencing factors on g-C3N4/CQDs' ability to degrade organic pollutants came in third. Finally, the conclusions of photocatalytic degradation of organic pollutants by g-C3N4/CQDs and future perspectives followed. This review will strengthen the understanding of the photocatalytic degradation of real organic wastewater by g-C3N4/CQDs, including their preparation, application, mechanism, and influencing factors.
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Affiliation(s)
- Jiahao Wen
- School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114, China; Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, China
| | - Lean Zhou
- School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114, China; Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, China
| | - Qingxin Tang
- School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114, China; Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, China
| | - Xiaozhen Xiao
- School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114, China; Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, China
| | - Shiquan Sun
- School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114, China; Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, China.
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He X. Fundamental Perspectives on the Electrochemical Water Applications of Metal-Organic Frameworks. NANO-MICRO LETTERS 2023; 15:148. [PMID: 37286907 PMCID: PMC10247659 DOI: 10.1007/s40820-023-01124-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 05/10/2023] [Indexed: 06/09/2023]
Abstract
HIGHLIGHTS The recent development and implementation of metal-organic frameworks (MOFs) and MOF-based materials in electrochemical water applications are reviewed. The critical factors that affect the performances of MOFs in the electrochemical reactions, sensing, and separations are highlighted. Advanced tools, such as pair distribution function analysis, are playing critical roles in unraveling the functioning mechanisms, including local structures and nanoconfined interactions. Metal-organic frameworks (MOFs), a family of highly porous materials possessing huge surface areas and feasible chemical tunability, are emerging as critical functional materials to solve the growing challenges associated with energy-water systems, such as water scarcity issues. In this contribution, the roles of MOFs are highlighted in electrochemical-based water applications (i.e., reactions, sensing, and separations), where MOF-based functional materials exhibit outstanding performances in detecting/removing pollutants, recovering resources, and harvesting energies from different water sources. Compared with the pristine MOFs, the efficiency and/or selectivity can be further enhanced via rational structural modulation of MOFs (e.g., partial metal substitution) or integration of MOFs with other functional materials (e.g., metal clusters and reduced graphene oxide). Several key factors/properties that affect the performances of MOF-based materials are also reviewed, including electronic structures, nanoconfined effects, stability, conductivity, and atomic structures. The advancement in the fundamental understanding of these key factors is expected to shed light on the functioning mechanisms of MOFs (e.g., charge transfer pathways and guest-host interactions), which will subsequently accelerate the integration of precisely designed MOFs into electrochemical architectures to achieve highly effective water remediation with optimized selectivity and long-term stability.
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Affiliation(s)
- Xiang He
- Department of Mechanical and Civil Engineering, Florida Institute of Technology, Melbourne, FL, 32901, USA.
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Zhao X, Liu Y, Zhu Q, Gong W. Catechol-Based Porous Organic Polymers for Effective Removal of Phenolic Pollutants from Water. Polymers (Basel) 2023; 15:polym15112565. [PMID: 37299361 DOI: 10.3390/polym15112565] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 05/30/2023] [Accepted: 06/01/2023] [Indexed: 06/12/2023] Open
Abstract
Phenolic pollutants released from industrial activities seriously damage natural freshwater resources, and their elimination or reduction to safe levels is an urgent challenge. In this study, three catechol-based porous organic polymers, CCPOP, NTPOP, and MCPOP, were prepared using sustainable lignin biomass-derived monomers for the adsorption of phenolic contaminants in water. CCPOP, NTPOP, and MCPOP showed good adsorption performance for 2,4,6-trichlorophenol (TCP) with theoretical maximum adsorption capacities of 808.06 mg/g, 1195.30 mg/g, and 1076.85 mg/g, respectively. In addition, MCPOP maintained a stable adsorption performance after eight consecutive cycles. These results indicate that MCPOP is a potential material for the effective treatment of phenol pollutants in wastewater.
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Affiliation(s)
- Xiaoxiao Zhao
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Yiqiong Liu
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Qimeng Zhu
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Weitao Gong
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
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He M, Yu H, Zhao Y, Liu J, Dong Q, Xu Z, Kang Y, Xue P. Ultrasound-Activatable g-C 3 N 4 -Anchored Titania Heterojunction as an Intracellular Redox Homeostasis Perturbator for Augmented Oncotherapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300244. [PMID: 36843276 DOI: 10.1002/smll.202300244] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/11/2023] [Indexed: 05/25/2023]
Abstract
Energy band structure of inorganic nano-sonosensitizers is usually optimized by surface decoration with noble metals or metal oxide semiconductors, aiming to enhance interfacial charge transfer, augment spin-flip and promote radical generation. To avoid potential biohazards of metallic elements, herein, metal-free graphitic carbon nitride quantum dots (g-C3 N4 QDs) are anchored onto hollow mesoporous TiO2 nanostructure to formulate TiO2 @g-C3 N4 heterojunction. The direct Z-scheme charge transfer significantly improves the separation/recombination dynamics of electron/hole (e- /h+ ) pairs upon ultrasound (US) stimulation, which promotes the yield of singlet oxygen (1 O2 ) and hydroxyl radicals (·OH). The conjugated g-C3 N4 QDs with peroxidase-mimic activity further react with the elevated endogenous H2 O2 and aggravate oxidative stress. After loading prodrug romidepsin (RMD) in TiO2 @g-C3 N4 , stimulus-responsive drug delivery can be realized by US irradiation. The disulfide bridge of the released RMD tends to be reduced by glutathione (GSH) into a monocyclic dithiol, which arrests cell cycle in G2/M phase and evokes apoptosis through enhanced histone acetylation. Importantly, reactive oxygen species accumulation accompanied by GSH depletion is devoted to deleterious redox dyshomeostasis, leading to augmented systemic oncotherapy by eliciting antitumor immunity. Collectively, this paradigm provides useful insights in optimizing the performance of TiO2 -based nano-sonosensitizers for tackling critical diseases.
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Affiliation(s)
- Mengting He
- School of Materials and Energy, Southwest University, Chongqing, 400715, China
| | - Honglian Yu
- School of Materials and Energy, Southwest University, Chongqing, 400715, China
| | - Yinmin Zhao
- School of Materials and Energy, Southwest University, Chongqing, 400715, China
| | - Jiahui Liu
- School of Materials and Energy, Southwest University, Chongqing, 400715, China
| | - Qi Dong
- School of Materials and Energy, Southwest University, Chongqing, 400715, China
| | - Zhigang Xu
- School of Materials and Energy, Southwest University, Chongqing, 400715, China
| | - Yuejun Kang
- School of Materials and Energy, Southwest University, Chongqing, 400715, China
| | - Peng Xue
- School of Materials and Energy, Southwest University, Chongqing, 400715, China
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Ni L, Hu J, Mao J, Li S, Wang H, Lu J. Effects of graphitic carbon nitride in the formation of disinfection byproducts. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2023; 87:1660-1671. [PMID: 37051789 DOI: 10.2166/wst.2023.086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Graphitic carbon nitride (CN) was a promising candidate for efficient environmental remediation in the advanced oxidation processes (AOPs). However, whether CN itself had some potential environmental risks, such as affecting the production of disinfection byproducts (DBPs) was still unknown. This study investigated the formation potential of DBPs in the presence of CN. The experimental data revealed that CN had a high potential to form DBPs, and dichloroacetonitrile (DCAN) was the most produced species during the chlorination and chloramination processes. Moreover, the effects of chlorine time, chlorine dosage, pH, and CN dosage during the chlorination process were evaluated to understand the formation pattern of DBPs. The possible mechanism of DBPs formation was deduced by analyzing the results of FTIR, Raman, and XPS before and after chlorination. Finally, the DBPs formation potential and cytotoxicity of the CN leaching solution were investigated, indicating CN could leach the precursors of DBPs and that the potential toxicity of the leaching solution increased with the extension of CN immersion time. In general, this research adds an understanding of the DBP formation of CN in water treatment systems and sheds light on CN's environmental potential risks.
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Affiliation(s)
- Linjie Ni
- College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China E-mail: ; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Tianjin 300071, China
| | - Jiaqi Hu
- College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China E-mail: ; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Tianjin 300071, China
| | - Jie Mao
- College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China E-mail: ; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Tianjin 300071, China
| | - Shanshan Li
- College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China E-mail: ; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Tianjin 300071, China
| | - Haitao Wang
- College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China E-mail: ; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Tianjin 300071, China
| | - Jinfeng Lu
- College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China E-mail: ; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Tianjin 300071, China; Key Laboratory of Pollution Processes and Environmental Criteria (Nankai University), Ministry of Education, Tianjin 300071, China
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Yang W, Ding K, Chen G, Wang H, Deng X. Synergistic Multisystem Photocatalytic Degradation of Anionic and Cationic Dyes Using Graphitic Phase Carbon Nitride. Molecules 2023; 28:molecules28062796. [PMID: 36985766 PMCID: PMC10051406 DOI: 10.3390/molecules28062796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/07/2023] [Accepted: 03/09/2023] [Indexed: 03/22/2023] Open
Abstract
Graphitic phase carbon nitride (g-C3N4) is a promising photocatalytic environmental material. For this study, the graphitic phase carbon nitride was prepared using a thermal polymerization method. The characteristic peaks, structures, and morphologies were determined using Fourier-transform infrared spectroscopy (FT-IR), X-ray diffractometry (XRD), and scanning electron microscopy (SEM), respectively. Under the synergetic visible light catalysis of H2O2 and Na2S2O8, the degradation effects of g-C3N4 on the anionic dye methyl orange (MO) and the cationic dye rhodamine b (Rhb) were investigated. The effects of adding different volumes of H2O2 and Na2S2O8 were likewise tested. The results showed that the above two synergistic systems increased the degradation rates of MO and Rhb by 2.5 and 3.5 times, respectively, compared with pure g-C3N4, and that the degradation rates of both MO and Rhb reached 100% within 120 min and 90 min, respectively, in accordance with the primary reaction kinetics. When H2O2 and Na2S2O8 were added dropwise at 10 mL each, the degradation rates of MO and Rhb were 82.22% and 99.81%, respectively, after 30 min of open light. The results of experiments upon both zeta potential and radical quenching showed that ·OH and ·O2− were the main active radicals for dye degradation in our synergistic system. In addition, stability tests showed that the photocatalysts in the synergistic system still had good reusability. Therefore, the use of a synergistic system can effectively reduce the photogenerated electron-hole pair complexation rate, representing a significant improvement in both photocatalytic degradation and for stability levels.
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Affiliation(s)
- Wen Yang
- College of Environmental and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China
| | - Kun Ding
- College of Environmental and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China
- Correspondence:
| | - Guangzhou Chen
- College of Environmental and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China
- Anhui Key Laboratory of Environmental Pollution Control and Waste Resource Utilization, Anhui Jianzhu University, Hefei 230601, China
| | - Hua Wang
- College of Environmental and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China
- Anhui Key Laboratory of Environmental Pollution Control and Waste Resource Utilization, Anhui Jianzhu University, Hefei 230601, China
| | - Xinyue Deng
- College of Environmental and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China
- Anhui Key Laboratory of Environmental Pollution Control and Waste Resource Utilization, Anhui Jianzhu University, Hefei 230601, China
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11
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Wang Y, Xiu J, Gan T, Zou H, Li F. Photocatalytic degradation of tetracycline hydrochloride by lanthanum doped TiO 2@g-C 3N 4 activated persulfate under visible light irradiation. RSC Adv 2023; 13:8383-8393. [PMID: 36926009 PMCID: PMC10012182 DOI: 10.1039/d3ra00729d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 03/06/2023] [Indexed: 03/17/2023] Open
Abstract
In this work, a visible light-driven La/TiO2@g-C3N4 photocatalyst was synthesized for the photodegradation of tetracycline hydrochloride (TCH) in the presence of peroxydisulfate (PDS) in an internal loop-lift reactor. The surface morphology and structure of La/TiO2@g-C3N4 have been characterized by XRD, SEM-EDS, FTIR, XPS, and UV/vis DRS. La/TiO2@g-C3N4 displays outstanding photocatalytic performance and reusability. After four reuse cycles of the vis/La/TiO2@g-C3N4/PDS system, the TCH degradation rate and efficiency still reached 0.083 min-1 and 97.68%, respectively. Reactive species in this system included free radicals SO4˙-, ˙OH, and ˙O2 -, as well as non-radicals e-, and h+, as established from the results of chemical quenching experiments. Moreover, a mechanism of action of the vis/La/TiO2@g-C3N4/PDS system for TCH degradation was proposed. The acute toxicity of the reaction solution towards Photobacterium phosphoreum T3 spp. in the vis/La/TiO2@g-C3N4/PDS process increased during the first 60 min and then decreased, illustrating that vis/La/TiO2@g-C3N4/PDS provided an effective and safe method for the removal of TCH.
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Affiliation(s)
- Yan Wang
- Department of Environmental Science and Engineering, Anhui Science and Technology University Donghua Road 9# Fengyang 233100 China
| | - Jingyu Xiu
- Department of Environmental Science and Engineering, Anhui Science and Technology University Donghua Road 9# Fengyang 233100 China
| | - Tao Gan
- Department of Environmental Science and Engineering, Anhui Science and Technology University Donghua Road 9# Fengyang 233100 China
| | - Haiming Zou
- Department of Environmental Science and Engineering, Anhui Science and Technology University Donghua Road 9# Fengyang 233100 China
| | - Feiyue Li
- Department of Environmental Science and Engineering, Anhui Science and Technology University Donghua Road 9# Fengyang 233100 China
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12
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Fan K, Chen Q, Zhao J, Liu Y. Preparation of MnO 2-Carbon Materials and Their Applications in Photocatalytic Water Treatment. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:541. [PMID: 36770501 PMCID: PMC9921467 DOI: 10.3390/nano13030541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/17/2023] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
Water pollution is one of the most important problems in the field of environmental protection in the whole world, and organic pollution is a critical one for wastewater pollution problems. How to solve the problem effectively has triggered a common concern in the area of environmental protection nowadays. Around this problem, scientists have carried out a lot of research; due to the advantages of high efficiency, a lack of secondary pollution, and low cost, photocatalytic technology has attracted more and more attention. In the past, MnO2 was seldom used in the field of water pollution treatment due to its easy agglomeration and low catalytic activity at low temperatures. With the development of carbon materials, it was found that the composite of carbon materials and MnO2 could overcome the above defects, and the composite had good photocatalytic performance, and the research on the photocatalytic performance of MnO2-carbon materials has gradually become a research hotspot in recent years. This review covers recent progress on MnO2-carbon materials for photocatalytic water treatment. We focus on the preparation methods of MnO2 and different kinds of carbon material composites and the application of composite materials in the removal of phenolic compounds, antibiotics, organic dyes, and heavy metal ions in water. Finally, we present our perspective on the challenges and future research directions of MnO2-carbon materials in the field of environmental applications.
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Affiliation(s)
- Kun Fan
- Chinese Research Academy of Environment Sciences, Beijing 100012, China
| | - Qing Chen
- Chinese Research Academy of Environment Sciences, Beijing 100012, China
- Ecological and Environmental Protection Company, China South-to-North Water Diversion Corporation Limited, Beijing 100036, China
| | - Jian Zhao
- Chinese Research Academy of Environment Sciences, Beijing 100012, China
| | - Yue Liu
- Chinese Research Academy of Environment Sciences, Beijing 100012, China
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13
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Luo Y, Huang G, Li Y, Yao Y, Huang J, Zhang P, Ren S, Shen J, Zhang Z. Removal of pharmaceutical and personal care products (PPCPs) by MOF-derived carbons: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159279. [PMID: 36209883 DOI: 10.1016/j.scitotenv.2022.159279] [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: 06/14/2022] [Revised: 08/10/2022] [Accepted: 10/02/2022] [Indexed: 06/16/2023]
Abstract
Nowadays, the increasing demand for pharmaceuticals and personal care products (PPCPs) has resulted in the uncontrolled release of large amounts of PPCPs into the environment, which poses a great challenge to the existing wastewater treatment technologies. Therefore, novel materials for efficient treatment of PPCPs need to be developed urgently. MOF-derived carbons (MDCs), have many advantages such as high mechanical strength, excellent water stability, large specific surface area, excellent electron transfer capability, and environmental friendliness. These advantages give MDCs an excellent ability to remove PPCPs. In this review, the effects of different substances on the properties and functions of MDCs are discussed. In addition, representative applications of MDCs and composites for the removal of PPCPs in the field of adsorption and catalysis are summarized. Finally, the future challenges of MDCs and composites are foreseen.
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Affiliation(s)
- Yifei Luo
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Guohe Huang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, China-Canada Center for Energy, Environment and Ecology Research, UR-BNU, School of Environment, Beijing Normal University, Beijing 100875, China; Environmental Systems Engineering Program, University of Regina, Regina, Saskatchewan S4S 0A2, Canada.
| | - Yongping Li
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Yao Yao
- Environmental Systems Engineering, Faculty of Engineering and Applied Science, University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - Jing Huang
- Environmental Systems Engineering, Faculty of Engineering and Applied Science, University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - Peng Zhang
- Environmental Systems Engineering, Faculty of Engineering and Applied Science, University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - Shaojie Ren
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Jian Shen
- Environmental Systems Engineering, Faculty of Engineering and Applied Science, University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - Zixin Zhang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China
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14
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Qamar MA, Javed M, Shahid S, Shariq M, Fadhali MM, Ali SK, Khan MS. Synthesis and applications of graphitic carbon nitride (g-C 3N 4) based membranes for wastewater treatment: A critical review. Heliyon 2023; 9:e12685. [PMID: 36660457 PMCID: PMC9842699 DOI: 10.1016/j.heliyon.2022.e12685] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/21/2022] [Accepted: 12/21/2022] [Indexed: 01/05/2023] Open
Abstract
Semiconducting membrane combined with nanomaterials is an auspicious combination that may successfully eliminate diverse waste products from water while consuming little energy and reducing pollution. Creating an inexpensive, steady, flexible, and diversified business material for membrane production is a critical challenge in membrane technology development. Because of its unusual structure and high catalytic activity, graphitic carbon nitride (g-C3N4) has come out as a viable material for membranes. Furthermore, their great durability, high permanency under challenging environments, and long-term use without decrease in flux are significant advantages. The advanced material techniques used to manage the molecular assembly of g-C3N4 for separation membrane were detailed in this review work. The progress in using g-C3N4-based membranes for water treatment has been detailed in this presentation. The review delivers an updated description of g-C3N4 based membranes and their separation functions and new ideas for future enhancements/adjustments to address their weaknesses in real-world situations. Finally, the ongoing problems and promising future research directions for g-C3N4-based membranes are discussed.
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Affiliation(s)
- Muhammad Azam Qamar
- Department of Chemistry, School of Science, University of Management and Technology, Lahore, 54770, Pakistan,Corresponding author.
| | - Mohsin Javed
- Department of Chemistry, School of Science, University of Management and Technology, Lahore, 54770, Pakistan
| | - Sammia Shahid
- Department of Chemistry, School of Science, University of Management and Technology, Lahore, 54770, Pakistan
| | - Mohammad Shariq
- Department of Physics, College of Science, Jazan University, Jazan, 45142, Saudi Arabia
| | - Mohammed M. Fadhali
- Department of Physics, College of Science, Jazan University, Jazan, 45142, Saudi Arabia,Department of Physics, Faculty of Science, Ibb University, Ibb, 70270, Yemen
| | - Syed Kashif Ali
- Department of Chemistry, College of Science, Jazan University, Jazan, 45142, Saudi Arabia
| | - Mohd. Shakir Khan
- Department of Physics, College of Science, Al- Zulfi, Majmaah University, Al- Majmaah, 11952, Saudi Arabia
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15
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Zhang Z, Zhang N, Liu Y, Fang Q, Xi J, Xiao Y, Zhou P, Xu L. Efficient degradation of organic dyes and reduced Cr(VI) in environmental water purification by in-situ deposition of silver nanoparticles on polydopamine-modified M-ATP/PCN. CATAL COMMUN 2022. [DOI: 10.1016/j.catcom.2022.106528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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16
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Lamellar carbon nitride membrane for enhanced ion sieving and water desalination. Nat Commun 2022; 13:7339. [PMID: 36443321 PMCID: PMC9705542 DOI: 10.1038/s41467-022-35120-9] [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: 08/07/2022] [Accepted: 11/18/2022] [Indexed: 12/03/2022] Open
Abstract
Membrane-based water treatment processes offer possibility to alleviate the water scarcity dilemma in energy-efficient and sustainable ways, this has been exemplified in filtration membranes assembled from two-dimensional (2D) materials for water desalination purposes. Most representatives however tend to swell or disintegrate in a hydrated state, making precise ionic or molecular sieving a tough challenge. Here we report that the chemically robust 2D carbon nitride can be activated using aluminum polycations as pillars to modulate the interlayer spacing of the conjugated framework, the noncovalent interaction concomitantly affords a well-interlinked lamellar structure, to be carefully distinguished from random stacking patterns in conventional carbon nitride membranes. The conformally packed membrane is characterized by adaptive subnanochannel and structure integrity to allow excellent swelling resistance, and breaks permeability-selectivity trade-off limit in forward osmosis due to progressively regulated transport passage, achieving high salt rejection (>99.5%) and water flux (6 L m-2 h-1), along with tunable permeation behavior that enables water gating in acidic and alkaline environments. These findings position carbon nitride a rising building block to functionally expand the 2D membrane library for applications in water desalination and purification scenarios.
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17
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Hu Q, Zhu C, Yan W, Wang Y, Cui S, Chen X, Liu B. Coordination-Assistant Chiral Agent Anchoring on Amphiphilic Graphitic Phase Carbon Nitride Membrane for Multiple Molecular Separation. ACS APPLIED MATERIALS & INTERFACES 2022; 14:50235-50245. [PMID: 36315245 DOI: 10.1021/acsami.2c15795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Membranes composed of two-dimensional (2D) materials suffer from low stability and structural swelling and are usually restricted to applications in aqueous systems. Among various 2D materials, graphitic phase carbon nitride (GCN, g-C3N4) has shown great application potential owing to its structural tunability. Herein, we develop a coordination-assisted strategy to regulate the GCN layer spacing and chemical environment via copper ion (Cu2+) coordination-assisted intercalation of enantiopure (1S,2S)-(-)-1,2-diphenyl-1,2-ethanediamine (DPE) between GCN nanosheets. The obtained GCN-Cu-DPE membrane is continuous and intact, free of cracks and pinholes, stable under acidic and alkaline conditions, and exhibits water permeability above 215 L m-2 h-1 bar-1 and a high rejection rate to dye molecules. The membrane is amphiphilicity and thus allows both polar solvent (water) and nonpolar solvent (hexane) to freely pass through. Remarkably, the permeation rate is proportional to the viscosity of the solvent. Benefiting from the chiral space between nanosheets, the GCN-Cu-DPE membrane shows selective permeation of aspartic acid racemate in aqueous systems and limonene racemate in the organic phase. Our work demonstrates a general and promising strategy for chiral membrane fabrication toward high-value-added chiral separation, especially in the pharmaceutical industry.
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Affiliation(s)
- Qing Hu
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui230026, China
| | - Chaofeng Zhu
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui230026, China
| | - Wen Yan
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui230026, China
| | - Yang Wang
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui230026, China
| | - Songlin Cui
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui230026, China
| | - Xihai Chen
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui230026, China
| | - Bo Liu
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui230026, China
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18
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Ma Q, Gao J, Potts C, Tong X, Tao Y, Zhang W. Electrochemical Aging and Halogen Oxides Formation on Multiwalled Carbon Nanotubes and Fe 3O 4@g-C 3N 4 Coated Conductive Membranes. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Qingquan Ma
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102, United States
| | - Jianan Gao
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102, United States
| | - Courtney Potts
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ 07102, United States
| | - Xiao Tong
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, United States
| | - Yi Tao
- Guangdong Provincial Engineering Research Center for Urban Water Recycling and Environmental Safety, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, P.R. China
| | - Wen Zhang
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102, United States
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19
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Liang Y, Huang G, Li Y, Yao Y, Xin X, Li X, Yin J, Gao S, Wu Y, Chen X, Feng R. Photocatalytic disinfection for point-of-use water treatment using Ti 3+ self-doping TiO 2 nanoparticle decorated ceramic disk filter. ENVIRONMENTAL RESEARCH 2022; 212:113602. [PMID: 35660568 DOI: 10.1016/j.envres.2022.113602] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 05/26/2022] [Accepted: 05/30/2022] [Indexed: 06/15/2023]
Abstract
The challenge from pathogenic infections still threatens the health and life of people in developing areas. An efficient, low-cost, and abundant-resource disinfection method is desired for supplying safe drinking water. This study aims to develop a novel Ti3+ doping TiO2 nanoparticle decorated ceramic disk filter (Ti3+/TiO2@CDF) for point-of-use (POU) disinfection of drinking water. The production of Ti3+/TiO2@CDF was optimized to maximize disinfection efficiency and flow rate. Under optimal conditions, the log reduction value (LRV) could reach up to 7.18 and the flaw rate was 108 mL/h. The influences of environmental factors were also investigated. Natural or slightly alkaline conditions, low turbidity, and low concentration of humic acid were favorable for the disinfection of Ti3+/TiO2@CDF, while co-existing HCO3- ions and diatomic cations (Ca2+ and Mg2+) exhibited the opposite effect. Furthermore, the practicability and stability of Ti3+/TiO2@CDF was demonstrated. Ti3+/TiO2@CDF showed high disinfection efficiency for E. coli and S. aureus under a range of concentrations. Long-term experiment indicated that Ti3+/TiO2@CDF was stable. The underlying disinfection mechanisms were investigated and concluded as the combination of retention, adsorption, and photocatalytic disinfection. The developed Ti3+/TiO2@CDF can provide an effective and reliable disinfection tool for POU water treatment in remote area.
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Affiliation(s)
- Ying Liang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing, 100875, China
| | - Guohe Huang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, China-Canada Center for Energy, Environment and Ecology Research, UR-BNU, School of Environment, Beijing Normal University, Beijing, 100875, China.
| | - Yongping Li
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing, 100875, China
| | - Yao Yao
- Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, S4S 0A2, Canada
| | - Xiaying Xin
- State Key Laboratory of Marine Pollution (SKLMP), and School of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong
| | - Xiang Li
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing, 100875, China
| | - Jianan Yin
- Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, S4S 0A2, Canada
| | - Sichen Gao
- Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, S4S 0A2, Canada
| | - Yuwei Wu
- Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, S4S 0A2, Canada
| | - Xiujuan Chen
- Department of Civil Engineering, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada
| | - Renfei Feng
- Canadian Light Source, Saskatoon, Saskatchewan, S7N 2 V3, Canada
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20
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Facile synthesis of rod-like TiO2-based composite loaded with g-C3N4 for efficient removal of high-chroma organic pollutants based on adsorption-photocatalysis mechanism. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109517] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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21
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Sheoran K, Kaur H, Siwal SS, Saini AK, Vo DVN, Thakur VK. Recent advances of carbon-based nanomaterials (CBNMs) for wastewater treatment: Synthesis and application. CHEMOSPHERE 2022; 299:134364. [PMID: 35318024 DOI: 10.1016/j.chemosphere.2022.134364] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 03/08/2022] [Accepted: 03/16/2022] [Indexed: 06/14/2023]
Abstract
Carbon-based nanomaterials (CBNMs) have attracted significant alert due to the affluent science underpinning their implementations associated with a novel mixture of high aspect proportions, greater thermal and electrical performance, outstanding optical features, and high exterior area. CBNMs not only bear assurance in a broad range of implementations in medication, nano and microelectronics, and ecological remedies but may also be utilized in practical laboratory determinations. More specifically, CBNMs perform as an outstanding adsorbent in terminating heavy metal ions (HMI) from wastewater. There is presently a deficiency of powerful threat inspection instruments owing to their complex detection and related deficit in the health risk database. Therefore, our present review concentrates on spreading CBNMs to release pollutants from wastewater. The article wraps the effect of these contaminants and photocatalytic strategies towards treating these mixtures in wastewater, along with their restrictions and challenges, convincing resolutions, and possibilities of these approaches.
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Affiliation(s)
- Karamveer Sheoran
- Department of Chemistry, M.M. Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana, 133207, India
| | - Harjot Kaur
- Department of Chemistry, M.M. Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana, 133207, India
| | - Samarjeet Singh Siwal
- Department of Chemistry, M.M. Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana, 133207, India.
| | - Adesh Kumar Saini
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana, 133207, India
| | - Dai-Viet N Vo
- Center of Excellence for Green Energy and Environmental Nanomaterials (CE@GrEEN), Nguyen Tat Thanh University, Ho Chi Minh City, Viet Nam
| | - Vijay Kumar Thakur
- Biorefining and Advanced Materials Research Center, SRUC (Scotland's Rural College), Kings Buildings, West Mains Road, Edinburgh, EH9 3JG, UK; School of Engineering, University of Petroleum & Energy Studies (UPES), Dehradun, Uttarakhand, India.
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22
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Li X, Wu Q, Hussain M, Chen L, Huang Q, Huang W, Tao T. Sodium alkoxide-mediated g-C 3N 4 immobilized on a composite nanofibrous membrane for preferable photocatalytic activity. RSC Adv 2022; 12:15378-15384. [PMID: 35693247 PMCID: PMC9121215 DOI: 10.1039/d2ra02441a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 05/16/2022] [Indexed: 11/21/2022] Open
Abstract
g-C3N4 is a classic photocatalyst not only owing to the metal-free semiconducting electronic structure but also tunable multifunctional properties. However, strategies for chemical exfoliation of g-C3N4 based on organic bases have been rarely reported. A family of sodium alkoxide-mediated g-C3N4 has been prepared via a simple synthesis. The degradation rate of bulk g-C3N4 is 39.8% when irradiation lasts 140 minutes. However, the degradation rate of g-C3N4-MeONa, g-C3N4-EtONa, and g-C3N4- t BuONa is 55.1%, 68.6%, and 79.1%, respectively, under the same conditions. Furthermore, g-C3N4- t BuONa has been immobilized on flexible electrospun PAN nanofibers to prepare floating photocatalysts. SEM analysis shows that the paper-based photocatalyst PAN/g-C3N4- t BuONa becomes a nanofiber membrane (A4 size, 210 mm × 297 mm). The nanofiber is approximately 350 nm in diameter. Interestingly, once synthesized, the g-C3N4- t BuONa particles move into the spinning solution, where the nanofiber wraps around them to form a monodisperse structure that resembles beads, or knots of 1-2 μm, on a string. The degradation efficiency of 10 mg L-1 MB solution can reach 100% for 2 hours until the solution becomes colorless. In addition, the photocatalytic mechanism studies have been validated. Different from H2SO4 or HNO3, this work has proposed a facile strategy for designing preferable floating photocatalysts using sodium alkoxide.
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Affiliation(s)
- Xue Li
- School of Chemistry and Materials Science, Institute of Advanced Materials and Flexible Electronics, Nanjing University of Information Science and Technology (NUIST) Nanjing 210044 P. R. China
- Jiangsu Collaborative Innovation Centre of Atmospheric Environment and Equipment Technologies, Jiangsu Key Laboratory of Atmospheric Environmental Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology Nanjing 210044 P. R. China
| | - Qin Wu
- School of Chemistry and Materials Science, Institute of Advanced Materials and Flexible Electronics, Nanjing University of Information Science and Technology (NUIST) Nanjing 210044 P. R. China
- Jiangsu Collaborative Innovation Centre of Atmospheric Environment and Equipment Technologies, Jiangsu Key Laboratory of Atmospheric Environmental Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology Nanjing 210044 P. R. China
| | - Mushraf Hussain
- School of Chemistry and Materials Science, Institute of Advanced Materials and Flexible Electronics, Nanjing University of Information Science and Technology (NUIST) Nanjing 210044 P. R. China
- Reading Academy, NUIST-UoR International Research Institute Nanjing 210044 P. R. China
| | - Liang Chen
- Jiangsu Collaborative Innovation Centre of Atmospheric Environment and Equipment Technologies, Jiangsu Key Laboratory of Atmospheric Environmental Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology Nanjing 210044 P. R. China
| | - Qiong Huang
- Jiangsu Collaborative Innovation Centre of Atmospheric Environment and Equipment Technologies, Jiangsu Key Laboratory of Atmospheric Environmental Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology Nanjing 210044 P. R. China
| | - Wei Huang
- State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210093 P. R. China
| | - Tao Tao
- School of Chemistry and Materials Science, Institute of Advanced Materials and Flexible Electronics, Nanjing University of Information Science and Technology (NUIST) Nanjing 210044 P. R. China
- Reading Academy, NUIST-UoR International Research Institute Nanjing 210044 P. R. China
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23
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Zhao Y, Wang L, Malpass-Evans R, McKeown NB, Carta M, Lowe JP, Lyall CL, Castaing R, Fletcher PJ, Kociok-Köhn G, Wenk J, Guo Z, Marken F. Effects of g-C 3N 4 Heterogenization into Intrinsically Microporous Polymers on the Photocatalytic Generation of Hydrogen Peroxide. ACS APPLIED MATERIALS & INTERFACES 2022; 14:19938-19948. [PMID: 35466666 PMCID: PMC9073839 DOI: 10.1021/acsami.1c23960] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 04/07/2022] [Indexed: 06/14/2023]
Abstract
Graphitic carbon nitride (g-C3N4) is known to photogenerate hydrogen peroxide in the presence of hole quenchers in aqueous environments. Here, the g-C3N4 photocatalyst is embedded into a host polymer of intrinsic microporosity (PIM-1) to provide recoverable heterogenized photocatalysts without loss of activity. Different types of g-C3N4 (including Pt@g-C3N4, Pd@g-C3N4, and Au@g-C3N4) and different quenchers are investigated. Exploratory experiments yield data that suggest binding of the quencher either (i) directly by adsorption onto the g-C3N4 (as shown for α-glucose) or (ii) indirectly by absorption into the microporous polymer host environment (as shown for Triton X-100) enhances the overall photochemical H2O2 production process. The amphiphilic molecule Triton X-100 is shown to interact only weakly with g-C3N4 but strongly with PIM-1, resulting in accumulation and enhanced H2O2 production due to the microporous polymer host.
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Affiliation(s)
- Yuanzhu Zhao
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK
| | - Lina Wang
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK
| | - Richard Malpass-Evans
- EaStCHEM
School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster
Road, Edinburgh, Scotland EH9 3JF, UK
| | - Neil B. McKeown
- EaStCHEM
School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster
Road, Edinburgh, Scotland EH9 3JF, UK
| | - Mariolino Carta
- Department
of Chemistry, Swansea University, College
of Science, Grove Building, Singleton Park, Swansea SA2 8PP, UK
| | - John P. Lowe
- University
of Bath, Materials & Chemical Characterisation
Facility, MC, Bath BA2 7AY, UK
| | - Catherine L. Lyall
- University
of Bath, Materials & Chemical Characterisation
Facility, MC, Bath BA2 7AY, UK
| | - Rémi Castaing
- University
of Bath, Materials & Chemical Characterisation
Facility, MC, Bath BA2 7AY, UK
| | - Philip J. Fletcher
- University
of Bath, Materials & Chemical Characterisation
Facility, MC, Bath BA2 7AY, UK
| | - Gabriele Kociok-Köhn
- University
of Bath, Materials & Chemical Characterisation
Facility, MC, Bath BA2 7AY, UK
| | - Jannis Wenk
- Department
of Chemical Engineering and Water Innovation Research Centre, WIRC, University of Bath, Claverton Down, Bath BA2 7AY, UK
| | - Zhenyu Guo
- Department
of Chemical Engineering, Imperial College
London, South Kensington Campus, London, SW7 2AZ, UK
| | - Frank Marken
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK
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Chen X, Xu X, Jia X, Qian H, Zhu X. Surface and interface engineering of Z-scheme 1D/2D imprinted CoZn-LDH/C3N4 nanorods for boosting selective visible-light photocatalytic activity. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2022.103531] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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25
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Designing Multi-Stage 2 A/O-MBR Processes for a Higher Removal Rate of Pollution in Wastewater. MEMBRANES 2022; 12:membranes12040377. [PMID: 35448347 PMCID: PMC9026808 DOI: 10.3390/membranes12040377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/27/2022] [Accepted: 03/28/2022] [Indexed: 11/17/2022]
Abstract
Multi-stage A/O-MBR processes were designed to improve wastewater treatment efficiency; three different designs were carried out and compared in this study. The 2(A/O)-MBR process, i.e., with two sets of anoxic/oxic tanks in series, showed better effluent quality than A/O-MBR and 3(A/O)-MBR processes. The removal rates of COD, NH4+-N, TP and TN were 95.29%, 89.47%, 83.55% and 78.58%, respectively, complying satisfactorily with China’s urban sewage treatment plant pollutant discharge standards. In terms of membrane fouling, the 3(A/O)-MBR process demonstrated the lowest fouling propensity. The microbial community structure in each bioreaction tank was analyzed, the results from which matched with the process efficiency and fouling behavior.
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Moradi M, Kakavandi B, Bahadoran A, Giannakis S, Dehghanifard E. Intensification of persulfate-mediated elimination of bisphenol A by a spinel cobalt ferrite-anchored g-C3N4S-scheme photocatalyst: Catalytic synergies and mechanistic interpretation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120313] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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27
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Covalent organic framework membrane reconstructed through intra-pore reaction having tunable performance for molecular separation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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