1
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Si H, Du D, Jiao C, Sun Y, Li L, Tang B. Biomimetic synergistic effect of redox site and Lewis acid for construction of efficient artificial enzyme. Nat Commun 2024; 15:6315. [PMID: 39060279 PMCID: PMC11282276 DOI: 10.1038/s41467-024-50687-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 07/18/2024] [Indexed: 07/28/2024] Open
Abstract
In enzymatic catalysis, the redox site and Lewis acid are the two main roles played by metal to assist amino acids. However, the reported enzyme mimics only focus on the redox-active metal as redox site, while the redox-inert metal as Lewis acid has, to the best of our knowledge, not been studied, presenting a bottleneck of enzyme mimics construction. Based on this, a series of highly efficient MxV2O5·nH2O peroxidase mimics with vanadium as redox site and alkaline-earth metal ion (M2+) as Lewis acid are reported. Experimental results and theoretical calculations indicate the peroxidase-mimicking activity of MxV2O5·nH2O show a periodic change with the Lewis acidity (ion potential) of M2+, revealing the mechanism of redox-inert M2+ regulating electron transfer of V-O through non-covalent polarization and thus promoting H2O2 adsorbate dissociation. The biomimetic synergetic effect of redox site and Lewis acid is expected to provide an inspiration for design of enzyme mimics.
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Affiliation(s)
- Haibin Si
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, 250014, P. R. China
| | - Dexin Du
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, 250014, P. R. China
| | - Chengcheng Jiao
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, 250014, P. R. China
| | - Yan Sun
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, 250014, P. R. China
| | - Lu Li
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, 250014, P. R. China.
- Jinan Institute of Quantum Technology, Jinan, 250101, P. R. China.
| | - Bo Tang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, 250014, P. R. China.
- Laoshan Laboratory, Qingdao, 266237, P. R. China.
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2
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Rao S, Zhi C, Wang X, Su J, Sun Y, Sun Y, Ma R, Liu Q, Yang J, Sun Z. In situ synthesis of graphitic carbon nitride nanosheet/Ti 3C 2T x MXene/TiO 2 Z-scheme heterojunctions boosting charge transfer for full-spectrum driven photocatalytic sterilization. J Colloid Interface Sci 2024; 659:594-602. [PMID: 38198936 DOI: 10.1016/j.jcis.2024.01.005] [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: 11/27/2023] [Revised: 12/26/2023] [Accepted: 01/02/2024] [Indexed: 01/12/2024]
Abstract
The development of a full-spectrum responsive photocatalytic germicide with excellent charge separation efficiency to harvest high antimicrobial efficacy is a key goal yet a challenging conundrum. Herein, graphitic carbon nitride nanosheet (PCNS)/Ti3C2Tx MXene/TiO2 (PMT) Z-scheme heterojunctions with robust interface contact were crafted by in situ interfacial engineering. The strong internal electrical field (IEF) from PCNS to TiO2, evinced by the Kelvin Probe Force Microscopy (KPFM) characterization, can obtain high charge separation efficiency with 73.99%, compared to Schottky junction PCNS/Ti3C2Tx (PM, 32.88%) and PCNS (17.70%). The Ti3C2Tx component can not only serve as a transfer pathway to accelerate the recombination of photoexcited electrons of TiO2 and holes of PCNS under the Ultraviolet-visible (UV-vis) light irradiation, but also replenish the photogenic electron concentrations to semiconductors in the near-infrared (NIR) light illumination. Meanwhile, the increased temperature due to the localized surface plasmon resonance (LSPR) can further boost the electronic activity to the generation of reactive oxygen species (ROS). Taken together, the PMT performs a high disinfection efficiency up to 99.40% under full solar spectrum illumination, 3.88 and 9.75 times higher than PCNS and TiO2, respectively, surpassing many reported Z-scheme heterojunctions. This work offers guidance for the design of Z-scheme heterojunction with the implanting of plasmons to secure excellent full-spectrum responsive photocatalytic sterilization performance.
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Affiliation(s)
- Shaosheng Rao
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Chuang Zhi
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xingyu Wang
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jiaming Su
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yingjie Sun
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Yangyang Sun
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Rong Ma
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Qinqin Liu
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Juan Yang
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Zhongti Sun
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China; Hebei Key Laboratory of Photoelectric Control on Surface and Interface, Hebei University of Science and Technology, Shijiazhuang 050018, China.
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3
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O’Neill S, Robertson JMC, Héquet V, Chazarenc F, Pang X, Ralphs K, Skillen N, Robertson PKJ. Comparison of Titanium Dioxide and Zinc Oxide Photocatalysts for the Inactivation of Escherichia coli in Water Using Slurry and Rotating-Disk Photocatalytic Reactors. Ind Eng Chem Res 2023; 62:18952-18959. [PMID: 38020788 PMCID: PMC10655038 DOI: 10.1021/acs.iecr.3c00508] [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: 02/16/2023] [Revised: 07/07/2023] [Accepted: 07/10/2023] [Indexed: 12/01/2023]
Abstract
The application of photocatalysis for the disinfection of water has been extensively reported over the past 30 years. Titanium dioxide (TiO2) has been the most widely and successfully used photocatalyst to date; however, it is not without its limitations. Frequently observed long lag times, sometimes up to 60 min, before bacterial inactivation begins and the presence of residual microorganisms, for example, up to 104 colony forming units, remaining after treatment are ongoing challenges with this particular photocatalyst. It is therefore important to find alternative photocatalysts that can address these issues. In this study, we compared the disinfection capacity of TiO2 with that of zinc oxide (ZnO) using Escherichia coli as a model organism in both a suspended and immobilized catalyst system. Our results showed that ZnO was superior to TiO2 in a number of areas. Not only were bacterial rates of destruction much quicker with ZnO, but no lag time was observed prior to inactivation in suspended systems. Furthermore, complete bacterial destruction was observed within the treatment times under investigation. The greater efficiency of ZnO is believed to be due to the decomposition of the bacterial cell wall being driven by hydrogen peroxide as opposed to hydroxyl radicals. The results reported in this paper show that ZnO is a more efficient and cost-effective photocatalyst than TiO2 and that it represents a viable alternative photocatalyst for water disinfection processes.
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Affiliation(s)
- Sean O’Neill
- School
of Chemistry and Chemical Engineering, Queen’s
University Belfast, David Keir Building, Stranmillis Road, Belfast BT9 5GS, Ireland
- IMT
Atlantique, CNRS, GEPEA, UMR 6144, 4 rue Alfred Kastler, CS 20722, Nantes Cedex
3 44403, France
| | - Jeanette M. C. Robertson
- School
of Biological Sciences, Queen’s University
Belfast, Chlorine Gardens, Belfast BT9 5DL, Ireland
| | - Valérie Héquet
- IMT
Atlantique, CNRS, GEPEA, UMR 6144, 4 rue Alfred Kastler, CS 20722, Nantes Cedex
3 44403, France
| | - Florent Chazarenc
- Research
Unit REVERSAAL, Centre INRAE Lyon-Grenoble, Auvergne-Rhône-Alpes, 5 Rue de la Doua, CS 20244, Villeurbanne Cedex 69625, France
| | - Xinzhu Pang
- School
of Chemistry and Chemical Engineering, Queen’s
University Belfast, David Keir Building, Stranmillis Road, Belfast BT9 5GS, Ireland
| | - Kathryn Ralphs
- School
of Chemistry and Chemical Engineering, Queen’s
University Belfast, David Keir Building, Stranmillis Road, Belfast BT9 5GS, Ireland
| | - Nathan Skillen
- School
of Chemistry and Chemical Engineering, Queen’s
University Belfast, David Keir Building, Stranmillis Road, Belfast BT9 5GS, Ireland
| | - Peter K. J. Robertson
- School
of Chemistry and Chemical Engineering, Queen’s
University Belfast, David Keir Building, Stranmillis Road, Belfast BT9 5GS, Ireland
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4
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Kong X, Chen H, Li F, Zhang F, Jiang Y, Song J, Sun Y, Zhao B, Shi J. Three-dimension chitosan hydrogel loading melanin composite nanoparticles for wound healing by anti-bacteria, immune activation and macrophage autophagy promotion. Int J Biol Macromol 2023; 237:124176. [PMID: 37023589 DOI: 10.1016/j.ijbiomac.2023.124176] [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: 02/07/2023] [Revised: 03/15/2023] [Accepted: 03/21/2023] [Indexed: 04/08/2023]
Abstract
Application of Combined photodynamic therapy (PDT) and photothermal therapy (PTT) has become one of the most promising strategy to replace antibiotics and avoid the epidemic of drug-resistant strains during wound healing. However, high amount of reactive oxygen species (ROS) and high temperature cause severe stress response to normal tissues, leading to potential risks of wound healing. Herein, a three-dimension chitosan hydrogel melanin-glycine-C60 nanoparticles (MGC NPs) were prepared to realized effective anti-bacterial activity, immune activation and macrophage autophagy promotion in three-dimensional wound space without triggering stress response. MGC NP is a composite polymer material composed of natural melanin polymer, oligopeptide and carbon-based material, which showed excellent biological safety. By regulating the peptide length between melanin and C60 and nanoparticle content, a high ROS/heat environment at the upper wound site and a low ROS/heat environment at the lower region adjacent to the wound tissue were established to obtain a three-dimension hydrogel with precise PDT and PTT efficiency in different regions. Highly effective PDT/PTT was used to kill microorganisms in upper region, thus providing a barrier to reduce microbial infection. Mild PDT/PTT in lower region promoted the polarization of M1 macrophage to M2 macrophage and activated autophagy of M2 macrophages, regulating the immune microenvironment and promoting wound repair. In conclusion, the novel three-dimensional PDT/PTT therapy based on natural macromolecules proposed in this study accelerates wound healing through dual pathways on the premise of avoiding wound stress response, which is of great significance for the development of clinical strategies for phototherapy.
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Affiliation(s)
- Xiaoying Kong
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao, China
| | - Haoyu Chen
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao, China
| | - Fuqiang Li
- Department of Physics, Pukyong National University, Busan 48513, South Korea
| | - Fenglan Zhang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao, China
| | - Yuping Jiang
- School of medicine and pharmacy, Ocean University of China, No. 5 Yushan road, Qingdao, China
| | - Junyao Song
- Bassars college of future agricultural science and technology, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao, China
| | - Yuanliang Sun
- Department of Spine Surgery, Affiliated Hospital of Qingdao University, No. 16 Jiangsu road, Qingdao, China.
| | - Bin Zhao
- Qingdao Shenkang Stem Cell Biotechnology Co., Ltd, Qingdao, China.
| | - Jinsheng Shi
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao, China; Department of public course teaching, University of Health and Rehabilitation Sciences, Oingdao, China.
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5
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Wang X, Zhang M, Zhu T, Wei Q, Liu G, Ding J. Flourishing Antibacterial Strategies for Osteomyelitis Therapy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2206154. [PMID: 36717275 PMCID: PMC10104653 DOI: 10.1002/advs.202206154] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/05/2022] [Indexed: 06/18/2023]
Abstract
Osteomyelitis is a destructive disease of bone tissue caused by infection with pathogenic microorganisms. Because of the complex and long-term abnormal conditions, osteomyelitis is one of the refractory diseases in orthopedics. Currently, anti-infective therapy is the primary modality for osteomyelitis therapy in addition to thorough surgical debridement. However, bacterial resistance has gradually reduced the benefits of traditional antibiotics, and the development of advanced antibacterial agents has received growing attention. This review introduces the main targets of antibacterial agents for treating osteomyelitis, including bacterial cell wall, cell membrane, intracellular macromolecules, and bacterial energy metabolism, focuses on their mechanisms, and predicts prospects for clinical applications.
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Affiliation(s)
- Xukai Wang
- Department of Thoracic SurgeryChina‐Japan Union Hospital of Jilin University126 Xiantai StreetChangchun130033P. R. China
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of Sciences5625 Renmin StreetChangchun130022P. R. China
| | - Mingran Zhang
- Department of Thoracic SurgeryChina‐Japan Union Hospital of Jilin University126 Xiantai StreetChangchun130033P. R. China
| | - Tongtong Zhu
- Department of Thoracic SurgeryChina‐Japan Union Hospital of Jilin University126 Xiantai StreetChangchun130033P. R. China
| | - Qiuhua Wei
- Department of Disinfection and Infection ControlChinese PLA Center for Disease Control and Prevention20 Dongda StreetBeijing100071P. R. China
| | - Guangyao Liu
- Department of Thoracic SurgeryChina‐Japan Union Hospital of Jilin University126 Xiantai StreetChangchun130033P. R. China
| | - Jianxun Ding
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of Sciences5625 Renmin StreetChangchun130022P. R. China
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6
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Wu Z, Shi X, Liu T, Xu X, Yu H, Zhang Y, Qin L, Dong X, Jia Y. Remarkable Pyro-Catalysis of g-C 3N 4 Nanosheets for Dye Decoloration under Room-Temperature Cold-Hot Cycle Excitation. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1124. [PMID: 36986019 PMCID: PMC10056075 DOI: 10.3390/nano13061124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 03/18/2023] [Accepted: 03/20/2023] [Indexed: 06/18/2023]
Abstract
Pyroelectric materials have the ability to convert the environmental cold-hot thermal energy such as day-night temperature alternation into electrical energy. The novel pyro-catalysis technology can be designed and realized on the basis of the product coupling between pyroelectric and electrochemical redox effects, which is helpful for the actual dye decomposition. The organic two-dimensional (2D) graphic carbon nitride (g-C3N4), as an analogue of graphite, has attracted considerable interest in the field of material science; however, its pyroelectric effect has rarely been reported. In this work, the remarkable pyro-catalytic performance was achieved in the 2D organic g-C3N4 nanosheet catalyst materials under the continuous room-temperature cold-hot thermal cycling excitation from 25 °C to 60 °C. The pyro-catalytic RhB dye decoloration efficiency of the 2D organic g-C3N4 can reach ~92.6%. Active species such as the superoxide radicals and hydroxyl radicals are observed as the intermediate products in the pyro-catalysis process of the 2D organic g-C3N4 nanosheets. The pyro-catalysis of the 2D organic g-C3N4 nanosheets provides efficient technology for wastewater treatment applications, utilizing the ambient cold-hot alternation temperature variations in future.
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Affiliation(s)
- Zheng Wu
- Xi’an Key Laboratory of Textile Chemical Engineering Auxiliaries, School of Environmental and Chemical Engineering, Xi’an Polytechnic University, Xi’an 710048, China; (Z.W.)
| | - Xiaoyu Shi
- Xi’an Key Laboratory of Textile Chemical Engineering Auxiliaries, School of Environmental and Chemical Engineering, Xi’an Polytechnic University, Xi’an 710048, China; (Z.W.)
| | - Tingting Liu
- Xi’an Key Laboratory of Textile Chemical Engineering Auxiliaries, School of Environmental and Chemical Engineering, Xi’an Polytechnic University, Xi’an 710048, China; (Z.W.)
| | - Xiaoli Xu
- College of Materials and Chemistry, China Jiliang University, Hangzhou 310018, China;
| | - Hongjian Yu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China;
| | - Yan Zhang
- School of Science, Xi’an University of Posts and Telecommunications, Xi’an 710121, China
| | - Laishun Qin
- College of Materials and Chemistry, China Jiliang University, Hangzhou 310018, China;
| | - Xiaoping Dong
- Department of Chemistry, School of Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, China;
| | - Yanmin Jia
- School of Science, Xi’an University of Posts and Telecommunications, Xi’an 710121, China
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7
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Wang H, Hailili R, Jiang X, Yuan G, Bahnemann DW, Wang X. Boosting photocatalytic performances of lamellar BiVO 4by constructing S-scheme heterojunctions with AgBr for efficient charge transfer. NANOTECHNOLOGY 2023; 34:215703. [PMID: 36780669 DOI: 10.1088/1361-6528/acbb7c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
Successful construction of heterojunction can improve the utilization efficiency of solar light by broadening the absorption range, facilitating charge-carrier separation, promoting carrier transportation and influencing surface-interface reaction. Herein, visible-light-driven AgBr was deposited on the surface of lamellar BiVO4which was prepared by a facile hydrothermal process to improve charge carrier separation, and subsequent photocatalytic effectiveness. The catalyst with an optimal AgBr/BiVO4ratio exhibited a superbly enhanced photocatalytic decolorization ability (about 6.85 times higher than that of pure BiVO4) and high stability after four cycles. The unique photocatalytic mechanism of S-scheme carrier migration was investigated on the bases of radical trapping tests and photo/electrochemical characterizations. Results showed that the enhanced migration strategy and intimately interfacial collaboration guaranteed the effective charge carriers separation/transfer, leading to magnificent photocatalytic performance as well as excellent stability.
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Affiliation(s)
- Haoran Wang
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
- Institut für Technische Chemie, Gottfried Wilhelm Leibniz Universität Hannover, Hannover D-30167, Germany
| | - Reshalaiti Hailili
- Institut für Technische Chemie, Gottfried Wilhelm Leibniz Universität Hannover, Hannover D-30167, Germany
- MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Beijing Key Laboratory of Heat Transfer and Energy Conversion, Beijing University of Technology, Beijing 100124, People's Republic of China
| | - Xiaoyu Jiang
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
| | - Guoliang Yuan
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
| | - Detlef W Bahnemann
- Institut für Technische Chemie, Gottfried Wilhelm Leibniz Universität Hannover, Hannover D-30167, Germany
| | - Xiong Wang
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
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8
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Wei R, Tong H, Zhang J, Sun B, You S. Flow electrochemical inactivation of waterborne bacterial endospores. JOURNAL OF HAZARDOUS MATERIALS 2023; 445:130505. [PMID: 36463735 DOI: 10.1016/j.jhazmat.2022.130505] [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: 10/11/2022] [Revised: 11/21/2022] [Accepted: 11/26/2022] [Indexed: 06/17/2023]
Abstract
Waterborne pathogens have the risk of spreading waterborne diseases and even pandemics. Some Gram-positive bacteria can form endospores, the hardiest known life form that can withstand heat, radiation, and chemicals. Electrochemical inactivation may offer a promising solution, but is hindered by low inactivation efficiencies resulting from limitation of electrode/endospores interaction in terms of electrochemical reaction selectivity and mass transfer. Herein, these issues were addressed through modifying selectivity of active species formation using electroactive ceramic membrane with high oxygen evolution potential, improving mass transfer property by flow-through operation. In this way, inactivation (6.0-log) of Bacillus atrophaeus endospores was achieved. Theoretical and experimental results demonstrated synergistic inactivation to occur through fragmentation of coat via interfacial electron transfer and electro-produced transient radicals (•OH primarily, •Cl and Cl2•- secondarily), thereby increasing cell permeability to facilitate penetration of electro-produced persistent active chlorine for subsequent rupture of intracellular structures. Numbering-up electrode module strategy was proposed to scale up the system, achieving average 5.3-log inactivation of pathogenic Bacillus anthracis endospores for 30 days. This study demonstrates a proof-of-concept manner for effective inactivation of waterborne bacterial endospores, which may provide an appealing strategy for wide-range applications like water disinfection, bio-safety control and defense against biological warfare.
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Affiliation(s)
- Rui Wei
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Hailong Tong
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, PR China; State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, PR China
| | - Jinna Zhang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Baiming Sun
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, PR China
| | - Shijie You
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, PR China.
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9
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Xu X, Yang M, Jiang Y, Tao N, Fu Y, Fan J, Xu X, Shi H, Lu Z, Shen C. A new acridine-based photosensitizer with ultra-low light requirement efficiently inactivates carbapenem-resistant Acinetobacter baumannii and methicillin-resistant Staphylococcus aureus and degrades their antibiotic resistance genes. ENVIRONMENT INTERNATIONAL 2023; 173:107839. [PMID: 36822004 DOI: 10.1016/j.envint.2023.107839] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 01/20/2023] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
The spread of antibiotic resistant pathogens and antibiotic resistance genes (ARGs) in the environment poses a serious threat to public health. However, existing methods are difficult to effectively remove antibiotic resistant pathogens and ARGs from the environment. In this study, we synthesized a new acridine-based photosensitizer, 2,7-dibromo-9-mesityl-10-methylacridinium perchlorate (YM-3), by the heavy atom effect, which could photodynamically inactivate antibiotic resistant pathogens and reduce ARGs by generating singlet oxygen (1O2) in an aqueous environment. The 1O2 yield of YM-3 was 4.9 times that of its modified precursor. YM-3 could reduce the culturable number and even the viable counts of methicillin-resistant Staphylococcus aureus and carbapenem-resistant Acinetobacter baumannii to 0 (inactivation rate > 99.99999%) after 2 and 8 h of low-intensity blue light (15 W/m2) irradiation, respectively. After 20 h of light exposure, the copy numbers of ARGs in both bacteria were reduced by 5.80 and 4.48 log, respectively, which might indicate that ARGs had been degraded. In addition, YM-3 still had an efficient bactericidal effect after five inactivation cycle. These characteristics of ultra-low light intensity requirement and efficient bactericidal ability make YM-3 have good application prospects for disinfection in indoor and sunlight environment.
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Affiliation(s)
- Xiaojie Xu
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, PR China
| | - Min Yang
- Department of Chemistry, Zhejiang University, Hangzhou 310058, PR China
| | - Yunhan Jiang
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, PR China
| | - Ningyao Tao
- Zhejiang Key Laboratory of Drinking Water Safety and Distribution Technology, Zhejiang University, Hangzhou 310058, PR China
| | - Yulong Fu
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, PR China
| | - Jiahui Fan
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, PR China
| | - Xin Xu
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, PR China
| | - Huixiang Shi
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, PR China
| | - Zhan Lu
- Department of Chemistry, Zhejiang University, Hangzhou 310058, PR China.
| | - Chaofeng Shen
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, PR China.
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10
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Yuan X, Li Y, Mo Q, Zhang B, Shu D, Sun L, Zhao X, Zhang R, Zheng J, Jia Y, Zang Y. Antibacterial activity and mechanism of slightly acidic electrolyzed water combined with ultraviolet light against Salmonella enteritidis. Food Control 2023. [DOI: 10.1016/j.foodcont.2023.109681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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11
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Peng X, Ma J, Zhou Z, Yang H, Chen J, Chen R, Wu K, Xi G, Liu S, Shen Y, Zhang Y. Molecular assembly of carbon nitride-based composite membranes for photocatalytic sterilization and wound healing. Chem Sci 2023; 14:4319-4327. [PMID: 37123183 PMCID: PMC10132134 DOI: 10.1039/d3sc00642e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 03/19/2023] [Indexed: 03/30/2023] Open
Abstract
A multifactorial mechanism for successful dissolution of polymeric carbon nitrides (pCN) was disclosed, enabling pCN to compound more advanced nanocomposites at the molecular level, beyond the traditional solar fuel applications in powders.
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Affiliation(s)
- Xiaoxiao Peng
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Southeast University Nanjing 211189 China
| | - Jin Ma
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Southeast University Nanjing 211189 China
| | - Zhixin Zhou
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Southeast University Nanjing 211189 China
| | - Hong Yang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Southeast University Nanjing 211189 China
| | - Jingjing Chen
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Southeast University Nanjing 211189 China
| | - Ran Chen
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Southeast University Nanjing 211189 China
| | - Kaiqing Wu
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Southeast University Nanjing 211189 China
| | - Guangcheng Xi
- Institute of Industrial and Consumer Product Safety, Chinese Academy of Inspection and Quarantine Beijing 100176 China
| | - Songqin Liu
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Southeast University Nanjing 211189 China
| | - Yanfei Shen
- Medical School, Southeast University Nanjing 210009 China
| | - Yuanjian Zhang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Southeast University Nanjing 211189 China
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Abd Rahman N, Choong CE, Pichiah S, Nah IW, Kim JR, Oh SE, Yoon Y, Choi EH, Jang M. Recent advances in the TiO2 based photoreactors for removing contaminants of emerging concern in water. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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13
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Obeng E, Feng J, Wang D, Zheng D, Xiang B, Shen J. Multifunctional phototheranostic agent ZnO@Ag for anti-infection through photothermal/photodynamic therapy. Front Chem 2022; 10:1054739. [PMID: 36438866 PMCID: PMC9682125 DOI: 10.3389/fchem.2022.1054739] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 10/06/2022] [Indexed: 08/22/2023] Open
Abstract
To overcome the limitations of traditional therapeutics, nanotechnology offers a synergistic therapeutic approach for the treatment of bacterial infection and biofilms that has attracted attention. Herein, we report on a ZnO@Ag nanocomposite with good biocompatibility synthesized by doping ZnO NPs with silver nanoparticles (Ag NPs). ZnO@Ag nanocomposites were synthesized with varying ratios of Ag NPs (0.5%, 2%, 8%). Under the same experimental conditions, ZnO@8%Ag exhibited outstanding properties compared to the other nanocomposites and the pristine ZnO NPs. ZnO@8%Ag demonstrated excellent photothermal and photodynamic properties. Also, ZnO@8%Ag demonstrated over 99% inhibition of Staphylococcus aureus (S. aureus) under photothermal therapy (PTT) or photodynamics therapy (PDT) as a result of the excessive generation of reactive oxygen species (ROS) by the Ag+ released, while the pristine ZnO showed an insignificant inhibition rate compared to the PBS group (control). Furthermore, ZnO@8%Ag completely disrupted S. aureus biofilm under a combined PTT/PDT treatment, a synergetic trimodal therapy, although the molecular mechanism of biofilm inhibition remains unclear. Hence, the excellent photothermal, photodynamic, biocompatibility, and bactericidal properties of ZnO@8%Ag present it as an appropriate platform for bacterial and biofilm treatment or other biomedically related applications.
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Affiliation(s)
- Enoch Obeng
- School of Ophthalmology and Optometry, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jiayao Feng
- Ningbo Eye Hospital, Ningbo, Zhejiang, China
| | - Danyan Wang
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China
| | - Dongyang Zheng
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China
| | - Bailin Xiang
- College of Chemistry and Materials Engineering, Huaihua University, Huaihua, China
| | - Jianliang Shen
- School of Ophthalmology and Optometry, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang, China
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China
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14
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Zhou X, Yang Z, Chen Y, Feng H, Yu J, Tang J, Ren X, Tang J, Wang J, Tang L. Single-atom Ru loaded on layered double hydroxide catalyzes peroxymonosulfate for effective E. coli inactivation via a non-radical pathway: Efficiency and mechanism. JOURNAL OF HAZARDOUS MATERIALS 2022; 440:129720. [PMID: 35952429 DOI: 10.1016/j.jhazmat.2022.129720] [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: 06/11/2022] [Revised: 08/02/2022] [Accepted: 08/04/2022] [Indexed: 06/15/2023]
Abstract
The Fenton-like processes are considered to be one of the most promising strategies for inactivating bacteria due to their capacity to produce reactive oxygen species (ROS). Herein, a catalytic system for efficient inactivation of Escherichia coli (E. coli) was developed by anchoring single-atom Ru on layered double hydroxides (LDH). The Ru/NiFe-LDH catalyst showed excellent performance in activating peroxymonosulfate (PMS) to inactivate E. coli. Under the combined action of the ultra-low concentrations of Ru/NiFe-LDH (40 mg/L) and PMS (5 mg/L), 7 log E. coli can be totally inactivated within 90 s. This was attributed to the combined effect of single-atom Ru adsorption to E. coli and the ROS produced in situ. Mechanism studies indicated that the 1O2 with electrophilic properties was the key active species responsible for the rapid inactivation of E. coli. The E. coli inactivation process suggested that the ROS produced first attacked the outer membrane of the cell, then the antioxidant enzymes in the cell were induced, the macromolecule substances were released and mineralized, eventually leading to irreversible cell death. This work firstly loads monoatomic Ru on LDH for bacterial inactivation, providing a feasible method for rapid inactivation of E. coli.
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Affiliation(s)
- Xin 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
| | - Zhongzhu 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
| | - Yu 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
| | - Haopeng Feng
- 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
| | - Jiangfang Yu
- 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
| | - Jialin 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
| | - Xiaoyi Ren
- 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
| | - Jing 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
| | - Jiajia 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.
| | - Lin 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.
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15
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Synergistically Improved Catalytic Ozonation Process Using Iron-Loaded Activated Carbons for the Removal of Arsenic in Drinking Water. WATER 2022. [DOI: 10.3390/w14152406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
This research attempts to find a new approach for the removal of arsenic (As) from drinking water by developing a novel solution. To the author’s knowledge, iron-loaded activated carbons (Fe-AC) have not been previously applied for the removal of As in a synergistic process using ozonation and catalytic ozonation processes. The As was investigated using drinking water samples in different areas of Lahore, Pakistan, and the As removal was compared with and without using catalysts. The results also suggested that the catalytic ozonation process significantly removes As as compared with single ozonation and adsorption processes. Moreover, a feed ozone of 1.0 mg/min and catalyst dose of 10 g was found to maintain a maximum removal efficiency of 98.6% within 30 min. The results of the catalyst dose–effect suggested that the removal of As tends to increase with the increase in catalysts amount. Hence, it is concluded that the Fe-AC/O3 process efficiently removes As in water. Moreover, it was established that the Fe-AC/O3 process might be regarded as an effective method for removing As from drinking water compared to the single ozonation and adsorption processes.
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16
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In situ grown bacterial cellulose/MoS 2 composites for multi-contaminant wastewater treatment and bacteria inactivation. Carbohydr Polym 2022; 277:118853. [PMID: 34893262 DOI: 10.1016/j.carbpol.2021.118853] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/08/2021] [Accepted: 11/02/2021] [Indexed: 01/06/2023]
Abstract
For the purpose of developing multifunctional water purification materials capable of degrading organic pollutants while simultaneously inactivating microorganisms from contaminated wastewater streams, we report here a facile and eco-friendly method to immobilize molybdenum disulfide into bacterial cellulose via a one-step in-situ biosynthetic method. The resultant nanocomposite, termed BC/MoS2, was shown to possess a photocatalytic activity capable of generating •OH from H2O2, while also exhibiting photodynamic/photothermal mechanisms, the combination of which exhibits synergistic activity for the degradation of pollutants as well as for bacterial inactivation. In the presence of H2O2, the BC/MoS2 nanocomposite exhibited excellent antibacterial efficacy upwards of 99.9999% (6 log units) for the photoinactivation of both Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus upon infrared (IR) lamp illumination (100 W, 760 nm ≤ λ ≤ 5000 nm, 15 cm vertical distance; 5 min). Mechanistic studies revealed synergistic pathogen inactivation resulting from the combination of photocatalytically generated •OH and hyperthermia induced by the photothermal conversion of the near-IR light. In addition, the BC/MoS2 nanocomposite also showed excellent photodegradation activity for common aqueous contaminants in the presence of H2O2, including malachite green (a textile dye), catechol violet (a phenol) and formaldehyde. Taken together, our findings demonstrate that sustainable materials such as BC/MoS2 have potential applications in wastewater treatment and microorganism disinfection.
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17
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Yang Z, Xu W, Yan B, Wu B, Ma J, Wang X, Qiao B, Tu J, Pei H, Chen D, Wu Q. Gold and Platinum Nanoparticle-Functionalized TiO 2 Nanotubes for Photoelectrochemical Glucose Sensing. ACS OMEGA 2022; 7:2474-2483. [PMID: 35071935 PMCID: PMC8772325 DOI: 10.1021/acsomega.1c06787] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 12/29/2021] [Indexed: 06/14/2023]
Abstract
Developing stable photoelectrochemistry (PEC) glucose biosensors with high sensitivity and a low detection limit is highly desirable in the biosensor field. Herein, a highly sensitive and stable enzymatic glucose PEC biosensor is rationally designed and fabricated using a TiO2NTs/Au/Pt/GOx electrode. First, we prepared one-dimensional TiO2 nanotube arrays which could realize the orthogonalization of the light-incident direction and the carrier diffusion direction via anodization. Subsequently, we used the method of photoassisted deposition for anchoring Pt nanoparticles on TiO2NTs after electrodepositing Au nanoparticles. Among them, Au nanoparticles promote light absorption via the surface plasmon resonance effect and the separation of photogenerated carriers through forming a Schottky junction. Moreover, the Pt nanoparticles on the electrode surface can react with hydrogen peroxide (H2O2) generated from glucose (Glu) oxidation by glucose oxidase (GOx), accelerating the electron-transfer process during glucose oxidation and greatly improving the sensitivity of the glucose biosensor. As a result, TiO2NTs/Au/Pt/GOx exhibited excellent PEC performance, achieving a high sensitivity of 81.93 μA mM-1 cm-2 and a low detection limit (1.39 μM), far exceeding the performance of TiO2NTs/M/GOx (M = Au, Pt). Therefore, the introduction of Pt nanoparticles as active substances to promote enzymatic reactions is important for designing high-performance enzyme biosensors.
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Affiliation(s)
- Zhuo Yang
- State
Key Laboratory of Marine Resource Utilization in South China Sea,
College of Materials Science and Engineering, Hainan University, Haikou 570228, China
| | - Wei Xu
- State
Key Laboratory of Marine Resource Utilization in South China Sea,
College of Materials Science and Engineering, Hainan University, Haikou 570228, China
| | - Bingdong Yan
- State
Key Laboratory of Marine Resource Utilization in South China Sea,
College of Materials Science and Engineering, Hainan University, Haikou 570228, China
| | - Baiqiang Wu
- State
Key Laboratory of Marine Resource Utilization in South China Sea,
College of Materials Science and Engineering, Hainan University, Haikou 570228, China
| | - Jinxin Ma
- State
Key Laboratory of Marine Resource Utilization in South China Sea,
College of Materials Science and Engineering, Hainan University, Haikou 570228, China
| | - Xiaohong Wang
- State
Key Laboratory of Marine Resource Utilization in South China Sea,
College of Materials Science and Engineering, Hainan University, Haikou 570228, China
| | - Bin Qiao
- Department
of Clinical Laboratory of the Second Affiliated Hospital, School of
Tropical Medicine and Laboratory Medicine, Key Laboratory of Emergency
and Trauma of Ministry of Education, Research Unit of Island Emergency
Medicine, Chinese Academy of Medical Sciences (No. 2019RU013), Hainan Medical University, Haikou 571199, China
| | - Jinchun Tu
- State
Key Laboratory of Marine Resource Utilization in South China Sea,
College of Materials Science and Engineering, Hainan University, Haikou 570228, China
| | - Hua Pei
- Department
of Clinical Laboratory of the Second Affiliated Hospital, School of
Tropical Medicine and Laboratory Medicine, Key Laboratory of Emergency
and Trauma of Ministry of Education, Research Unit of Island Emergency
Medicine, Chinese Academy of Medical Sciences (No. 2019RU013), Hainan Medical University, Haikou 571199, China
| | - Delun Chen
- State
Key Laboratory of Marine Resource Utilization in South China Sea,
College of Materials Science and Engineering, Hainan University, Haikou 570228, China
| | - Qiang Wu
- Department
of Clinical Laboratory of the Second Affiliated Hospital, School of
Tropical Medicine and Laboratory Medicine, Key Laboratory of Emergency
and Trauma of Ministry of Education, Research Unit of Island Emergency
Medicine, Chinese Academy of Medical Sciences (No. 2019RU013), Hainan Medical University, Haikou 571199, China
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18
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Feng Y, Qin J, Zhou Y, Yue Q, Wei J. Spherical mesoporous Fe-N-C single-atom nanozyme for photothermal and catalytic synergistic antibacterial therapy. J Colloid Interface Sci 2022; 606:826-836. [PMID: 34425270 DOI: 10.1016/j.jcis.2021.08.054] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/22/2021] [Accepted: 08/07/2021] [Indexed: 12/12/2022]
Abstract
Nanozyme has been regarded as an efficient antibiotic to kill bacteria using the reactive oxygen species (ROS) generated by Fenton-like reaction. However, its activity is still unsatisfied and requires large amount of hydrogen peroxide with side effects toward normal tissues. Herein, spherical mesoporous Fe-N-C single-atom nanozyme (SAzyme) is designed for antibacterial therapy via photothermal treatment enhanced Fenton-like catalysis process. Due to the large pore size (4.0 nm), high specific surface area (413.9 m2 g-1) and uniform diameter (100 nm), the catalytic performance of Fe-N-C SAzyme is greatly improved. The Michaelis-Menten constant (Km) is 4.84 mmol L-1, which is similar with that of horseradish peroxidase (3.7 mmol L-1). Moreover, mesoporous Fe-N-C SAzyme shows high photothermal conversion efficiency (23.3 %) owing to the carbon framework. The catalytic activity can be enhanced under light irradiation due to the elevated reaction temperature. The bacteria can also be killed via physical heat effect. Due to the synergistic effect of nanozyme catalysis and photothermal treatment, the antibacterial performance is much higher than that using single antibacterial method. This work provides an alternative for combined antibacterial treatment via photothermal treatment assisted catalytic process using spherical mesoporous single-atom nanozyme as an antibiotic.
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Affiliation(s)
- Youyou Feng
- Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Jing Qin
- Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Yu Zhou
- Institute of Fundamental and Frontier Science, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - Qin Yue
- Institute of Fundamental and Frontier Science, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China.
| | - Jing Wei
- Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.
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19
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Lu Q, Wang Y, Zhang D, Cong H. Solar light-driven photocatalytic production of hypochlorous acid over Pt/WO3 in seawater for marine antifouling. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-021-04638-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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20
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High-efficiency sandwich-like hierarchical AgBr-Ag@MIL-68(Fe) photocatalysts: Step-scheme photocatalytic mechanism for enhanced photoactivity. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119442] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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21
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Alulema-Pullupaxi P, Espinoza-Montero PJ, Sigcha-Pallo C, Vargas R, Fernández L, Peralta-Hernández JM, Paz JL. Fundamentals and applications of photoelectrocatalysis as an efficient process to remove pollutants from water: A review. CHEMOSPHERE 2021; 281:130821. [PMID: 34000653 DOI: 10.1016/j.chemosphere.2021.130821] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 05/03/2021] [Accepted: 05/06/2021] [Indexed: 06/12/2023]
Abstract
Water pollution is an environmental problem in constant raising because of population growing, industrial development, agricultural frontier expansion, and principally because of the lack of wastewater treatment technology to remove organic recalcitrant and toxic pollutants from industrial and domestic wastewater. Recalcitrant compounds are a serious environmental and health problem mainly due to their toxicity and potential hazardous effects on living organisms, including human beings. Conventional wastewater treatments have not been able to remove efficiently pollutants from water; however, electrochemical advanced oxidation processes (EAOPs) are able to solve this environmental concern. One of the most recent EAOPs technology is photoelectrocatalysis (PEC), it consists in applying an external bias potential to a semiconductor film placed over a conductive substrate to avoid the recombination of photogenerated electron-hole (e-/h+) pairs, increasing h+ availability and hydroxyl radicals' formation, responsible for promoting the degradation/mineralization of organic pollutants in aqueous medium. This review summarizes the recent advances in PEC as a promising technology for wastewater treatment. It addresses the fundamentals and kinetic aspects of PEC. An analysis of photoanode materials and of the configuration of photoelectrochemical reactors is also presented, including an analysis of the influence of the main operational parameters on the treatment of contaminated water. Finally, the most recent applications of PEC are reviewed, and the challenges and perspectives of PEC in wastewater treatment are discussed.
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Affiliation(s)
- Paulina Alulema-Pullupaxi
- Escuela de Ciencias Químicas, Pontificia Universidad Católica del Ecuador, Avenida 12 de Octubre y Roca, PO·Box: 1701-2184, Quito, Ecuador
| | - Patricio J Espinoza-Montero
- Escuela de Ciencias Químicas, Pontificia Universidad Católica del Ecuador, Avenida 12 de Octubre y Roca, PO·Box: 1701-2184, Quito, Ecuador.
| | - Carol Sigcha-Pallo
- Escuela de Ciencias Químicas, Pontificia Universidad Católica del Ecuador, Avenida 12 de Octubre y Roca, PO·Box: 1701-2184, Quito, Ecuador
| | - Ronald Vargas
- Instituto Tecnológico de Chascomús (INTECH), Universidad Nacional de San Martín (UNSAM)- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Intendente Marino, Km 8.2, CC 164 (B7130IWA), Chascomús, Argentina; Departamento de Química, Universidad Simón Bolívar (USB), Apartado 89000, 1080A, Caracas, Venezuela
| | - Lenys Fernández
- Escuela de Ciencias Químicas, Pontificia Universidad Católica del Ecuador, Avenida 12 de Octubre y Roca, PO·Box: 1701-2184, Quito, Ecuador
| | - Juan M Peralta-Hernández
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Cerro de la Venada s/n, Pueblito de Rocha, 36040, Guanajuato, Mexico
| | - J L Paz
- Departamento Académico de Química Inorgánica, Facultad de Química e Ingeniería Química, Universidad Nacional Mayor de San Marcos, Lima, Peru
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22
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Preparation of Z-scheme Ag/AgBr/BiOBr composite photocatalyst for effective removal of organic pollutants. Chem Phys 2021. [DOI: 10.1016/j.chemphys.2021.111228] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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23
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García-Espinoza JD, Robles I, Durán-Moreno A, Godínez LA. Photo-assisted electrochemical advanced oxidation processes for the disinfection of aqueous solutions: A review. CHEMOSPHERE 2021; 274:129957. [PMID: 33979920 PMCID: PMC8121763 DOI: 10.1016/j.chemosphere.2021.129957] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 05/04/2023]
Abstract
Disinfection is usually the final step in water treatment and its effectiveness is of paramount importance in ensuring public health. Chlorination, ultraviolet (UV) irradiation and ozone (O3) are currently the most common methods for water disinfection; however, the generation of toxic by-products and the non-remnant effect of UV and O3 still constitute major drawbacks. Photo-assisted electrochemical advanced oxidation processes (EAOPs) on the other hand, appear as a potentially effective option for water disinfection. In these processes, the synergism between electrochemically produced active species and photo-generated radicals, improve their performance when compared with the corresponding separate processes and with other physical or chemical approaches. In photo-assisted EAOPs the inactivation of pathogens takes place by means of mechanisms that occur at different distances from the anode, that is: (i) directly at the electrode's surface (direct oxidation), (ii) at the anode's vicinity by means of electrochemically generated hydroxyl radical species (quasi-direct), (iii) or at the bulk solution (away from the electrode surface) by photo-electrogenerated active species (indirect oxidation). This review addresses state of the art reports concerning the inactivation of pathogens in water by means of photo-assisted EAOPs such as photo-electrocatalytic process, photo-assisted electrochemical oxidation, photo-electrocoagulation and cathodic processes. By focusing on the oxidation mechanism, it was found that while quasi-direct oxidation is the preponderant inactivation mechanism, the photo-electrocatalytic process using semiconductor materials is the most studied method as revealed by numerous reports in the literature. Advantages, disadvantages, trends and perspectives for water disinfection in photo-assisted EAOPs are also analyzed in this work.
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Affiliation(s)
- Josué Daniel García-Espinoza
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro Sanfandila, 76703, Pedro Escobedo, Querétaro, Mexico
| | - Irma Robles
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro Sanfandila, 76703, Pedro Escobedo, Querétaro, Mexico
| | | | - Luis A Godínez
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro Sanfandila, 76703, Pedro Escobedo, Querétaro, Mexico.
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24
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Xiao J, Liu Q, Song M, Li X, Li Q, Shang JK. Directing photocatalytic pathway to exceedingly high antibacterial activity in water by functionalizing holey ultrathin nanosheets of graphitic carbon nitride. WATER RESEARCH 2021; 198:117125. [PMID: 33878660 DOI: 10.1016/j.watres.2021.117125] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/03/2021] [Accepted: 04/05/2021] [Indexed: 06/12/2023]
Abstract
Metal-free polymeric carbon nitride (C3N4) photocatalysts offer attractive technological advantages over the conventional transition metal oxides or sulfides -based photocatalysts in water disinfection, but their antimicrobial activities are limited by their rapid charge carrier recombination and low specific surface areas. By controlling photocatalytic pathways, we obtained in amino-rich holey ultrathin g-C3N4 nanosheets (AHUCN) a highly efficient inactivation rate against E-coli, which is the highest among the monolithic g-C3N4 and exceeds the antibacterial performance of the most of the previously reported g-C3N4-based photocatalysts. Both the experiments and theoretical calculations demonstrated that the high photocatalytic disinfection performance of AHUCN was derived from the synergistic advantages of their unique holey ultrathin structure and the amino - rich surface in controlling the charge separation and transfer, and most importantly in increasing the photo-production of the dominant antibacterial species, H2O2. From the analysis of the reactive oxygen species and rotating disk electrode (RDE) measurements, it was found that the presence of abundant surface amino groups enabled the switch of the oxygen-reduction pathway from the two-step single-electron indirect reduction on holey ultrathin g-C3N4 nanosheets (HUCN) to the one-step two-electron direct reduction on AHUCN. The switch of the H2O2 production pathway not only facilitated the separation of photogenerated electron-hole pairs but also promoted the generation of reactive oxygen species, greatly enhancing photocatalytic disinfection efficiency.
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Affiliation(s)
- Jun Xiao
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Qiang Liu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China; Nano Science and Technology Institute, University of Science and Technology of China, Suzhou, 215123, China
| | - Mian Song
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Xiangrong Li
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Qi Li
- School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Jian Ku Shang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China; University of Illinois at Urbana-Champaign, Urbana, IL 61801 United States.
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Guo Z, Liu Y, Zhang Y, Sun X, Li F, Bu T, Wang Q, Wang L. A bifunctional nanoplatform based on copper manganate nanoflakes for bacterial elimination via a catalytic and photothermal synergistic effect. Biomater Sci 2021; 8:4266-4274. [PMID: 32588850 DOI: 10.1039/d0bm00706d] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Bacterial infection has been recognized as one of the greatest threats to public health. In view of the continuous increase of bacterial resistance, constructing a collaborative bactericidal platform is a promising strategy to enhance the efficiency of antimicrobial agents. Herein, we report a facile, biocompatible and versatile nano-platform based on positively charged copper manganate nanoflakes (CuMnO2 NFs), which exhibits intrinsic peroxidase-like catalytic activity and excellent photothermal properties. The CuMnO2 NFs can bind with negatively charged bacteria via electrostatic interactions, and generate hydroxyl radicals (˙OH) through catalysis involving hydrogen peroxide (H2O2) to make bacteria more susceptible to temperature. Introducing near-infrared light generates hyperthermia to fight against bacteria and enhances the peroxidase-like catalytic activity of the CuMnO2 NFs, thus producing more ˙OH to combat bacteria. The PTT-enhanced ˙OH synergistic antibacterial strategy exerts desirable antibacterial efficiencies of 98.78% and 99.92% against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) at a controlled low temperature (below 50 °C), without damage to healthy tissues. Animal experiments indicate that this synergistic treatment has a better therapeutic effect on S. aureus-infected wounds in mice, compared with either treatment by itself. Therefore, this work holds great promise for developing new synergistic antimicrobial strategies to treat bacterial infections.
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Affiliation(s)
- Zhirong Guo
- College of Food Science and Engineering, Northwest A&F University, Yangling712100, Shaanxi, China.
| | - Yingnan Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling712100, Shaanxi, China.
| | - Yalan Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling712100, Shaanxi, China.
| | - Xinyu Sun
- College of Food Science and Engineering, Northwest A&F University, Yangling712100, Shaanxi, China.
| | - Fan Li
- College of Food Science and Engineering, Northwest A&F University, Yangling712100, Shaanxi, China.
| | - Tong Bu
- College of Food Science and Engineering, Northwest A&F University, Yangling712100, Shaanxi, China.
| | - Qinzhi Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling712100, Shaanxi, China.
| | - Li Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling712100, Shaanxi, China.
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Double S-scheme AgBr heterojunction co-modified with g-C3N4 and black phosphorus nanosheets greatly improves the photocatalytic activity and stability. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115540] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Younis MA, Lyu S, Lei C, Yang B, Li Z, He Q, Lu J, Lei L, Hou Y. Efficient mineralization of sulfanilamide over oxygen vacancy-rich NiFe-LDH nanosheets array during electro-fenton process. CHEMOSPHERE 2021; 268:129272. [PMID: 33352511 DOI: 10.1016/j.chemosphere.2020.129272] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 11/09/2020] [Accepted: 12/07/2020] [Indexed: 06/12/2023]
Abstract
Electrochemical degradation of toxic sulfanilamide with inexpensive approach is in urgent demand due to the harmful effects of sulfanilamide for both humans and aquatic environments. Here, we reported an efficient mineralization of sulfanilamide by using NiFe-layered double hydroxide (NiFe-LDH) nanosheets array with abundant oxygen vacancies that was in situ grown on exfoliated graphene (EG) by a simple hydrothermal treatment at different temperatures. The hydrothermal temperature was carefully analyzed for control synthesis of oxygen vacancy-rich NiFe-LDH/EG nanosheets array (NiFe-LDH/EG-OVr) for sulfanilamide degradation. Owing to the abundant oxygen vacancies, NiFe-LDH/EG-OVr rapidly generated hydrogen peroxide (H2O2) and hydroxyl radical (•OH) during electro-Fenton (EF) process, which resulted in the 98% mineralization of sulfanilamide in first 80 min. The radicals trapping experiments revealed that the •OH radicals was participated as the main active oxidation species in the efficient mineralization of sulfanilamide. The present results indicated that the oxidative attack by •OH radicals initiated the degradation process of sulfanilamide. During the total degradation of sulfanilamide, several organic compounds including aminophenol, hydroquinone, and oxalic acid, were identified as main intermediates by using gas chromatography-mass spectroscopy (GC-MS) and high-performance liquid chromatography-mass spectroscopy (HPLC-MS).
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Affiliation(s)
- Muhammad Adnan Younis
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Siliu Lyu
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Chaojun Lei
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Bin Yang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China; Institute of Zhejiang University - Quzhou, 78 Jiuhua Boulevard North, Quzhou, 324000, China
| | - Zhongjian Li
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Qinggang He
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Jianguo Lu
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Lecheng Lei
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China; Institute of Zhejiang University - Quzhou, 78 Jiuhua Boulevard North, Quzhou, 324000, China
| | - Yang Hou
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China; Institute of Zhejiang University - Quzhou, 78 Jiuhua Boulevard North, Quzhou, 324000, China; Ningbo Research Institute, Zhejiang University, Ningbo, 315100, China.
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Combined Iron-Loaded Zeolites and Ozone-Based Process for the Purification of Drinking Water in a Novel Hybrid Reactor: Removal of Faecal Coliforms and Arsenic. Catalysts 2021. [DOI: 10.3390/catal11030373] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
This study was carried out to provide a novel solution to treat drinking water at household levels, specifically removing arsenic (As) and faecal coliforms (microbes). In the current investigation, a synergistic iron-loaded zeolites and ozonation process (O3/Fe-ZA) was used for the first time in a modified batch reactor to remove coliform bacteria and arsenic in tap water. Moreover, the study utilizes the human health risk assessment model to confirm the health risk due to As intake in drinking water. The risk assessment study revealed a health risk threat among the residents suffering from the adverse effects of As through its intake in drinking water. Furthermore, the results also suggested that the O3/Fe-ZA process significantly removes faecal coliforms and As, when compared with single ozonation processes. Additionally, the ozone dose 0.2 mg/min and Fe-ZA dose of 10 g (in the O3/Fe-ZA process) gives the maximum removal efficiency of 100% within 15 min for faecal coliform removal. In 30 min, the removal efficiency of 88.4% was achieved at the ozone dose of 0.5 mg/min and 93% removal efficiency was achieved using 10 g Fe-ZA for the removal of As in the O3/Fe-ZA process. Hence, it was concluded that the O3/Fe-ZA process may be regarded as an effective method for removing faecal coliforms and As from drinking water compared to the single ozonation processes.
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An X, Erramilli S, Reinhard BM. Plasmonic nano-antimicrobials: properties, mechanisms and applications in microbe inactivation and sensing. NANOSCALE 2021; 13:3374-3411. [PMID: 33538743 PMCID: PMC8349509 DOI: 10.1039/d0nr08353d] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Bacterial, viral and fungal infections pose serious threats to human health and well-being. The continuous emergence of acute infectious diseases caused by pathogenic microbes and the rapid development of resistances against conventional antimicrobial drugs necessitates the development of new and effective strategies for the safe elimination of microbes in water, food or on surfaces, as well as for the inactivation of pathogenic microbes in human hosts. The need for new antimicrobials has triggered the development of plasmonic nano-antimicrobials that facilitate both light-dependent and -independent microbe inactivation mechanisms. This review introduces the relevant photophysical mechanisms underlying these plasmonic nano-antimicrobials, and provides an overview of how the photoresponses and materials properties of plasmonic nanostructures can be applied in microbial pathogen inactivation and sensing applications. Through a systematic analysis of the inactivation efficacies of different plasmonic nanostructures, this review outlines the current state-of-the-art in plasmonic nano-antimicrobials and defines the application space for different microbial inactivation strategies. The advantageous optical properties of plasmonic nano-antimicrobials also enhance microbial detection and sensing modalities and thus help to avoid exposure to microbial pathogens. Sensitive and fast plasmonic microbial sensing modalities and their theranostic and targeted therapeutic applications are discussed.
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Affiliation(s)
- Xingda An
- Department of Chemistry, Boston University, Boston, MA 02215, USA. and The Photonics Center, Boston University, Boston, MA 02215, USA
| | - Shyamsunder Erramilli
- Department of Physics, Boston University, Boston, MA 02215, USA and The Photonics Center, Boston University, Boston, MA 02215, USA
| | - Björn M Reinhard
- Department of Chemistry, Boston University, Boston, MA 02215, USA. and The Photonics Center, Boston University, Boston, MA 02215, USA
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Niedźwiedź I, Juzwa W, Skrzypiec K, Skrzypek T, Waśko A, Kwiatkowski M, Pawłat J, Polak-Berecka M. Morphological and physiological changes in Lentilactobacillus hilgardii cells after cold plasma treatment. Sci Rep 2020; 10:18882. [PMID: 33144617 PMCID: PMC7609761 DOI: 10.1038/s41598-020-76053-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 10/16/2020] [Indexed: 11/09/2022] Open
Abstract
Atmospheric cold plasma (ACP) inactivation of Lentilactobacillus hilgardii was investigated. Bacteria were exposed to ACP dielectric barrier discharge with helium and oxygen as working gases for 5, 10, and 15 min. The innovative approach in our work for evaluation of bacterial survival was the use in addition to the classical plate culture method also flow cytometry which allowed the cells to be sorted and revealed different physiological states after the plasma treatment. Results showed total inhibition of bacterial growth after 10-min of ACP exposure. However, the analysis of flow cytometry demonstrated the presence of 14.4% of active cells 77.5% of cells in the mid-active state and 8.1% of dead cells after 10 min. In addition, some of the cells in the mid-active state showed the ability to grow again on culture medium, thus confirming the hypothesis of induction of VBNC state in L .hilgardii cells by cold plasma. In turn, atomic force microscopy (AFM) which was used to study morphological changes in L. hilgardii after plasma treatment at particular physiological states (active, mid-active, dead), showed that the surface roughness of the mid-active cell (2.70 ± 0.75 nm) was similar to that of the control sample (2.04 ± 0.55 nm). The lack of considerable changes on the cell surface additionally explains the effective cell resuscitation. To the best of our knowledge, AFM was used for the first time in this work to analyze cells which have been sorted into subpopulations after cold plasma treatment and this is the first work indicating the induction of VBNC state in L. hilgardii cells after exposure to cold plasma.
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Affiliation(s)
- Iwona Niedźwiedź
- Department of Microbiology, Biotechnology and Human Nutrition, University of Life Sciences in Lublin, Skromna 8, 20-704, Lublin, Poland.
| | - Wojciech Juzwa
- Department of Biotechnology and Food Microbiology, Faculty of Food Science, Poznan University of Life Sciences, Wojska Polskiego 48, 60-627, Poznan, Poland
| | - Krzysztof Skrzypiec
- Analytical Laboratory, Maria Curie-Skłodowska University, M. Curie-Skłodowska Square 3/22, 20-031, Lublin, Poland
| | - Tomasz Skrzypek
- Laboratory of Confocal and Electron Microscopy, Interdisciplinary Research Center, John Paul II Catholic University of Lublin, Lublin, Poland
| | - Adam Waśko
- Department of Microbiology, Biotechnology and Human Nutrition, University of Life Sciences in Lublin, Skromna 8, 20-704, Lublin, Poland
| | - Michał Kwiatkowski
- Faculty of Electrical Engineering and Computer Science, Lublin University of Technology, Nadbystrzycka 38A, 20-618, Lublin, Poland
| | - Joanna Pawłat
- Faculty of Electrical Engineering and Computer Science, Lublin University of Technology, Nadbystrzycka 38A, 20-618, Lublin, Poland
| | - Magdalena Polak-Berecka
- Department of Microbiology, Biotechnology and Human Nutrition, University of Life Sciences in Lublin, Skromna 8, 20-704, Lublin, Poland.
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Yamaguchi M, Abe H, Ma T, Tadaki D, Hirano-Iwata A, Kanetaka H, Watanabe Y, Niwano M. Bactericidal Activity of TiO 2 Nanotube Thin Films on Si by Photocatalytic Generation of Active Oxygen Species. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:12668-12677. [PMID: 33105996 DOI: 10.1021/acs.langmuir.0c02225] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The photocatalytic bactericidal activity of titanium dioxide (TiO2) thin films has been extensively studied. In this study, we investigated the bactericidal activities of TiO2 nanotube (NT) thin films using Escherichia coli and Staphylococcus aureus cells as the model bacteria. Metallic titanium (Ti) thin films were anodized on a silicon (Si) wafer substrate to form TiO2 NT thin films. To evaluate the bactericidal activity of the TiO2 NT thin films, bacteria on the TiO2 NT thin films were irradiated with near-ultraviolet light (UV-A) at a wavelength of 365 nm. The bactericidal activity was estimated by the survival rate derived from the number of live cells, which form colonies on the cell culture medium. We demonstrated that the survival rate of the two types of bacteria investigated in this study was significantly reduced by UV light irradiation and that there was a difference in the temporal change in the survival rate between the two types of bacteria. Furthermore, we investigated the generation of reactive oxygen species (ROSs) by UV light irradiation of TiO2 NT thin films using electron spin resonance spectroscopy and fluorescence analysis. We found that the main ROS generated on the surface of the TiO2 NT film was the hydroxyl radical, OH•. In addition, the generation of ROSs increased with an increase in the UV irradiation time. We proposed a kinetic model that reproduces the dependence of bacterial viability on the UV light irradiation time by considering the temporal change in the amount of ROSs generated by UV light irradiation. A comparison of the calculated and experimental results revealed that the bactericidal effect consisted of the direct photolysis of bacteria and the photocatalysis via the generation of hydroxyl radicals, with the latter exhibiting a stronger bactericidal effect than the former.
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Affiliation(s)
- Masato Yamaguchi
- Kansei Fukushi Research Institute, Tohoku Fukushi University, Sendai 989-3201, Japan
| | - Hiroyuki Abe
- Industrial Technology Institute, Miyagi Prefectural Government, Sendai 981-3206, Japan
| | - Teng Ma
- Advanced Institute for Materials Research (AIMR), Tohoku University, Sendai 980-8577, Japan
| | - Daisuke Tadaki
- Research Institute of Electrical Communication, Tohoku University, Sendai 980-8577, Japan
| | - Ayumi Hirano-Iwata
- Advanced Institute for Materials Research (AIMR), Tohoku University, Sendai 980-8577, Japan
- Research Institute of Electrical Communication, Tohoku University, Sendai 980-8577, Japan
| | - Hiroyasu Kanetaka
- Graduate School of Dentistry, Tohoku University, Sendai 980-8575, Japan
| | - Yoshihiko Watanabe
- Kansei Fukushi Research Institute, Tohoku Fukushi University, Sendai 989-3201, Japan
| | - Michio Niwano
- Kansei Fukushi Research Institute, Tohoku Fukushi University, Sendai 989-3201, Japan
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32
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Pu S, Yang Z, Tang J, Ma H, Xue S, Bai Y. Plasmonic silver/silver oxide nanoparticles anchored bismuth vanadate as a novel visible-light ternary photocatalyst for degrading pharmaceutical micropollutants. J Environ Sci (China) 2020; 96:21-32. [PMID: 32819696 DOI: 10.1016/j.jes.2020.03.038] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 03/14/2020] [Accepted: 03/15/2020] [Indexed: 06/11/2023]
Abstract
The degradation of pharmaceutical micropollutants is an intensifying environmental problem and synthesis of efficient photocatalysts for this purpose is one of the foremost challenges worldwide. Therefore, this study was conducted to develop novel plasmonic Ag/Ag2O/BiVO4 nanocomposite photocatalysts by simple precipitation and thermal decomposition methods, which could exhibit higher photocatalytic activity for mineralized pharmaceutical micropollutants. Among the different treatments, the best performance was observed for the Ag/Ag2O/BiVO4 nanocomposites (5 wt.%; 10 min's visible light irradiation) which exhibited 6.57 times higher photodegradation rate than the pure BiVO4. Further, the effects of different influencing factors on the photodegradation system of tetracycline hydrochloride (TC-HCl) were investigated and the feasibility for its practical application was explored through the specific light sources, water source and cycle experiments. The mechanistic study demonstrated that the photogenerated holes (h+), superoxide radicals (•O2-) and hydroxyl radicals (•OH) participated in TC-HCl removal process, which is different from the pure BiVO4 reaction system. Hence, the present work can provide a new approach for the formation of novel plasmonic photocatalysts with high photoactivity and can act as effective practical application for environmental remediation.
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Affiliation(s)
- Shengyan Pu
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, Sichuan, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Zeng Yang
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, Sichuan, China
| | - Jing Tang
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, Sichuan, China
| | - Hui Ma
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, Sichuan, China; Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 401871 Frederiksberg, Denmark
| | - Shengyang Xue
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, Sichuan, China
| | - Yingchen Bai
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
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Zhang S, Sun M, Hedtke T, Deshmukh A, Zhou X, Weon S, Elimelech M, Kim JH. Mechanism of Heterogeneous Fenton Reaction Kinetics Enhancement under Nanoscale Spatial Confinement. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:10868-10875. [PMID: 32867483 DOI: 10.1021/acs.est.0c02192] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nanoscale catalysts that can enable Fenton-like chemistry and produce reactive radicals from hydrogen peroxide activation have been extensively studied in order to overcome the limitations of homogeneous Fenton processes. Despite several advantageous features, limitation in mass transfer of short-lived radical species is an inherent drawback of the heterogeneous system. Here, we present a mechanistic foundation for the way spatial confinement of Fenton chemistry at the nanoscale can significantly enhance the kinetics of radical-mediated oxidation reactions-pollutant degradation in particular. We synthesized a series of Fe3O4-functionalized nanoreactors with precise pore dimensions, based on an anodized aluminum oxide template, to enable quantitative analysis of nanoconfinement effects. Combined with computational simulation of spatial distribution of radicals, we found that hydroxyl radical concentration was strongly dependent on the distance from the surface of Fenton catalysts. This distance dependency significantly influences the gross reaction kinetics and accounts for the observed nanoconfinement effects. We further found that a length scale below 25 nm is critical to avoid the limitation of short-lived species diffusion and achieve kinetics that are orders of magnitude faster than those obtained in a batch suspension of heterogeneous catalysts. These findings suggest a new strategy to develop an innovative heterogeneous catalytic system with the most effective use of hydroxyl radicals in oxidation treatment scenarios.
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Affiliation(s)
- Shuo Zhang
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Avenue, New Haven, Connecticut 06511, United States
| | - Meng Sun
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Avenue, New Haven, Connecticut 06511, United States
| | - Tayler Hedtke
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Avenue, New Haven, Connecticut 06511, United States
| | - Akshay Deshmukh
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Avenue, New Haven, Connecticut 06511, United States
| | - Xuechen Zhou
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Avenue, New Haven, Connecticut 06511, United States
| | - Seunghyun Weon
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Avenue, New Haven, Connecticut 06511, United States
| | - Menachem Elimelech
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Avenue, New Haven, Connecticut 06511, United States
| | - Jae-Hong Kim
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Avenue, New Haven, Connecticut 06511, United States
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Abstract
Wide-bandgap semiconductors modified with nanostructures of noble metals for photocatalytic activity under vis irradiation due to localized surface plasmon resonance (LSPR), known as plasmonic photocatalysts, have been intensively investigated over the last decade. Most literature reports discuss the properties and activities of plasmonic photocatalysts for the decomposition of organic compounds and solar energy conversion. Although noble metals, especially silver and copper, have been known since ancient times as excellent antimicrobial agents, there are only limited studies on plasmonic photocatalysts for the inactivation of microorganisms (considering vis-excitation). Accordingly, this review has discussed the available literature reports on microbiological applications of plasmonic photocatalysis, including antibacterial, antiviral and antifungal properties, and also a novel study on other microbiological purposes, such as cancer treatment and drug delivery. Although some reports indicate high antimicrobial properties of these photocatalysts and their potential for medical/pharmaceutical applications, there is still a lack of comprehensive studies on the mechanism of their interactions with microbiological samples. Moreover, contradictory data have also been published, and thus more study is necessary for the final conclusions on the key-factor properties and the mechanisms of inactivation of microorganisms and the treatment of cancer cells.
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Wang T, Zhang X, Mei L, Ma D, Liao Y, Zu Y, Xu P, Yin W, Gu Z. A two-step gas/liquid strategy for the production of N-doped defect-rich transition metal dichalcogenide nanosheets and their antibacterial applications. NANOSCALE 2020; 12:8415-8424. [PMID: 32239043 DOI: 10.1039/d0nr00192a] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Herein, we developed a general two-step gas expansion and exfoliation strategy based on a urea-assisted hydrothermal process combined with sonication exfoliation for the production of nitrogen (N)-doped plus defect-rich transition metal dichalcogenide (TMD) nanosheets (NSs) such as N-MoS2 and N-WS2 NSs. The interlayers of bulk MoS2 (or WS2) were expanded with urea molecules dissolved in distilled water, which were decomposed to NH3 during the hydrothermal process. Simultaneously, sulfur atoms were partly replaced by N atoms to achieve N doping. Subsequently, sonication exfoliation of the urea-treated bulk MoS2 (or WS2) promoted the production of defect-rich NSs. Importantly, the defect-rich N-MoS2 and N-WS2 NSs exhibit enhanced peroxidase-like catalytic activity after being captured by bacteria, and can catalyze hydrogen peroxide (H2O2) to produce more toxic hydroxyl radicals (˙OH) than non-N-doped MoS2 or WS2 NSs. As a result, the N-MoS2 or N-WS2 NSs were capable of effectively killing Gram-negative ampicillin resistant Escherichia coli (AmprE. coli) and Gram-positive endospore-forming Bacillus subtilis (B. subtilis) and promoting bacteria-infected wound healing. This work not only provides a simple, universal exfoliation strategy for producing defect-rich N-doped TMD NSs but also provides a promising catalytic antibacterial option and has potential for many other catalytic applications.
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Affiliation(s)
- Tao Wang
- College of Materials and Chemistry and Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology of China, Chinese Academy of Sciences, Beijing 100049, China
| | - Xiao Zhang
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology of China, Chinese Academy of Sciences, Beijing 100049, China
| | - Linqiang Mei
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology of China, Chinese Academy of Sciences, Beijing 100049, China and Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Dongqing Ma
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology of China, Chinese Academy of Sciences, Beijing 100049, China
| | - You Liao
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology of China, Chinese Academy of Sciences, Beijing 100049, China and Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Yan Zu
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology of China, Chinese Academy of Sciences, Beijing 100049, China
| | - Peng Xu
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology of China, Chinese Academy of Sciences, Beijing 100049, China
| | - Wenyan Yin
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology of China, Chinese Academy of Sciences, Beijing 100049, China
| | - Zhanjun Gu
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology of China, Chinese Academy of Sciences, Beijing 100049, China and Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China.
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Cao D, Wang Q, Liu Z, Zhang H, Wang Y, Jin R, Gao S. Enhanced the photoelectrocatalytic performance of TiO 2 nanotube arrays by the synergistic sensitization of Ag-AgBr nanospheres. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 227:117674. [PMID: 31670048 DOI: 10.1016/j.saa.2019.117674] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 10/10/2019] [Accepted: 10/15/2019] [Indexed: 06/10/2023]
Abstract
Ag-AgBr nanospheres were synthesized on the tubular surface of TiO2 nanotube arrays (TiO2 NTA/Ag-AgBr) by the one-pot hydrothermal deposition strategy using cetyltrimethyl ammonium bromide (CTAB) as bromine source and morphology controlling agent. The results showed that the TiO2 NTA/Ag-AgBr (0.025) prepared with 0.025 g CTAB had the uniform particle distribution, high visible light absorption, photoelectric conversion activity and photoelectrocatalytic (PEC) removal of organic dyes and heavy metal ions. The high photocatalytic decomposition of organic pollutants in waste water was attributed to the synergistic effect of Ag-AgBr nanospheres with the strong visible light response and effective separation of electron-hole pairs. The active group and photocatalytic mechanism for the rapid pollutant removal were systematically explored. This work will open the window of TiO2 NTA based photoelectrodes for the applications in solar energy conversion and dyeing waste water purification.
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Affiliation(s)
- Dandan Cao
- School of Chemistry and Materials Science, Ludong University, Yantai, 264025, China
| | - Qingyao Wang
- School of Chemistry and Materials Science, Ludong University, Yantai, 264025, China.
| | - Zhiyuan Liu
- School of Chemistry and Materials Science, Ludong University, Yantai, 264025, China
| | - Han Zhang
- School of Chemistry and Materials Science, Ludong University, Yantai, 264025, China
| | - Yujie Wang
- School of Chemistry and Materials Science, Ludong University, Yantai, 264025, China
| | - Rencheng Jin
- School of Chemistry and Materials Science, Ludong University, Yantai, 264025, China
| | - Shanmin Gao
- School of Chemistry and Materials Science, Ludong University, Yantai, 264025, China.
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37
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Sanni S, Viljoen E, Ofomaja A. Design of ordered Ag/AgBr nanostructures coupled activated carbon with enhanced charge carriers separation efficiency for photodegradation of tetracycline under visible light. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.112032] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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38
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Hosseini-Sarvari M, Dehghani A. Visible-light-driven photochemical activity of ternary Ag/AgBr/TiO2 nanotubes for oxidation C(sp3)–H and C(sp2)–H bonds. NEW J CHEM 2020. [DOI: 10.1039/d0nj03907a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The Ag/AgBr/TiO2 ternary nanotube as a heterogeneous photocatalyst was used for the solvent-free oxidation of the benzylic C(sp3)–H bond or the solvent-controlled selective oxidative cleavage of the CC double bond of styrene under visible light at room temperature.
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Affiliation(s)
| | - Abdulhamid Dehghani
- Department of Chemistry
- Shiraz University
- Shiraz 7194684795
- Islamic Republic of Iran
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39
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Rapid ultrasonic-microwave assisted synthesis of spindle-like Ag/ZnO nanostructures and their enhanced visible-light photocatalytic and antibacterial activities. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.01.017] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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40
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Ding M, Shi F, Zhu H, Yang Y, Zhong J, Luo L, Huo Y, Li H. Photoelectrocatalytic bacterial inactivation of Acinetobacter baumannii on Cu 2O/TiO 2@Cu mesh photoanodes. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01500h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A Cu2O/TiO2@Cu mesh acting as a photoanode presented strong photoelectrochemical activity for bacterial inactivation of Acinetobacter baumannii.
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Affiliation(s)
- Mengna Ding
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Normal University
- Shanghai 200234
- China
| | - Fengyan Shi
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Normal University
- Shanghai 200234
- China
| | - Huijuan Zhu
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Normal University
- Shanghai 200234
- China
| | - Yuping Yang
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Normal University
- Shanghai 200234
- China
| | - Jiahui Zhong
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Normal University
- Shanghai 200234
- China
| | - Liulin Luo
- Department of Clinical Laboratory Medicine
- Shanghai Pulmonary Hospital
- Tongji University School of Medicine
- Shanghai 200433
- China
| | - Yuning Huo
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Normal University
- Shanghai 200234
- China
| | - Hexing Li
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Normal University
- Shanghai 200234
- China
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41
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Chen X, Miao W, Yang Y, Hao S, Mao S. Aeration-assisted sulfite activation with ferrous for enhanced chloramphenicol degradation. CHEMOSPHERE 2020; 238:124599. [PMID: 31454743 DOI: 10.1016/j.chemosphere.2019.124599] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 08/12/2019] [Accepted: 08/15/2019] [Indexed: 06/10/2023]
Abstract
In this study, an Fe(Ⅱ)/S(IV) system was designed for the degradation of chloramphenicol (CAP). The pseudo-first-order rate constants for CAP degradation under typical conditions with and without air purging were investigated. The greatly enhanced rate of 0.0099 min-1 with air purging compared with 0.0006 min-1 with no air purging indicated that aeration was significant to the degradation of CAP in Fe(Ⅱ)/S(Ⅳ) system. Radical scavenging experiments revealed that SO4- was the primary oxidant generated from the activation of S(IV) with Fe(II), accounting for around 70% of degradation under weak acidic and neutral conditions. Increasing Fe(II) and S(IV) doses promoted the degradation of CAP, whereas the overdose of them led to a decreased degradation rate by scavenging radicals. Owing to the participation of oxygen in the formation of ferric sulfite complex and SO5-, the increase of dissolved oxygen improved the removal efficiency of CAP. The removal efficiency of CAP was also found to be pH dependent, decreasing from acid condition (initial pH = 4) to basic condition (initial pH = 8). The presence of coexisting anions and water matrix was found inhibiting CAP degradation in Fe(Ⅱ)/S(Ⅳ) system. This work provides an understanding on the working mechanism and possible applications of Fe(Ⅱ)/S(Ⅳ) system in organic compound degradation in wastewater.
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Affiliation(s)
- Xiaoyan Chen
- Biomedical Multidisciplinary Innovation Research Institute, Shanghai East Hospital, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Wei Miao
- Biomedical Multidisciplinary Innovation Research Institute, Shanghai East Hospital, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Yulin Yang
- Biomedical Multidisciplinary Innovation Research Institute, Shanghai East Hospital, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Sibei Hao
- Biomedical Multidisciplinary Innovation Research Institute, Shanghai East Hospital, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Shun Mao
- Biomedical Multidisciplinary Innovation Research Institute, Shanghai East Hospital, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
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42
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Wang Q, Gao Q, Wu H, Fan Y, Lin D, He Q, Zhang Y, Cong Y. In situ construction of semimetal Bi modified BiOI-Bi2O3 film with highly enhanced photoelectrocatalytic performance. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.06.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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43
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He N, Cao S, Zhang L, Tian Z, Chen H, Jiang F. Enhanced photocatalytic disinfection of Escherichia coli K-12 by porous g-C 3N 4 nanosheets: Combined effect of photo-generated and intracellular ROSs. CHEMOSPHERE 2019; 235:1116-1124. [PMID: 31561302 DOI: 10.1016/j.chemosphere.2019.07.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 06/27/2019] [Accepted: 07/01/2019] [Indexed: 05/21/2023]
Abstract
The porous graphitic carbon nitride nanosheets (PCNSs) with high yields were synthesized by using one-step chemical exfoliation method. PCNSs accelerated separation efficiency of photo-generated electron-hole pairs in comparison to bulk graphitic carbon nitride. The PCNS5 (exfoliation for 5 h) exhibited optimal photocatalytic disinfection capability towards Escherichia coli K-12 under simulated solar light irradiation with complete disinfection of 6.5 log10 cfu/mL of E. coil K-12 within 2 h. The enhanced photocatalytic activity of PCNS5 originated from mesoporous nanosheet structure. The possible mechanism of photocatalytic disinfection has proposed that intracellular reactive oxygen species levels and the activities of antioxidant enzymes (e.g., catalase and superoxide dismutase) were enhanced. Transmission electron microscope images observed during photocatalytic disinfection process suggested that the cell membrane was regarded as the first target for oxidation, resulting in a faster leakage of cytoplasmic content and finally degradation of DNA leading to bacterial death. Furthermore, the trapping experiment showed that superoxide radical (•O2-) and holes (h+) were responsible for E. coli K-12 disinfection by PCNS5.
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Affiliation(s)
- Nannan He
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Shihai Cao
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Lihao Zhang
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhidan Tian
- Department of Pathology, Nanjing First Hospital, Nanjing, 210006, China
| | - Huan Chen
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China.
| | - Fang Jiang
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China.
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44
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Li H, Zhong J, Zhu H, Yang Y, Ding M, Luo L, Huo Y, Li H. Hybrid Cu2O/TiO2 Nanocomposites with Enhanced Photocatalytic Antibacterial Activity toward Acinetobacter Baumannii. ACS APPLIED BIO MATERIALS 2019; 2:4892-4903. [DOI: 10.1021/acsabm.9b00644] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Huifan Li
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Jiahui Zhong
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Huijuan Zhu
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Yuping Yang
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Mengna Ding
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Liulin Luo
- Shanghai Pulmonary Hospital, Shanghai 200433, China
| | - Yuning Huo
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Hexing Li
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
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45
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Liu Y, Guo Z, Li F, Xiao Y, Zhang Y, Bu T, Jia P, Zhe T, Wang L. Multifunctional Magnetic Copper Ferrite Nanoparticles as Fenton-like Reaction and Near-Infrared Photothermal Agents for Synergetic Antibacterial Therapy. ACS APPLIED MATERIALS & INTERFACES 2019; 11:31649-31660. [PMID: 31407880 DOI: 10.1021/acsami.9b10096] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Synergistic therapeutic strategies for bacterial infection have attracted extensive attentions owing to their enhanced therapeutic effects and less adverse effects compared with monotherapy. Herein, we report a novel synergistic antibacterial platform that integrates the nanocatalytic antibacterial therapy and photothermal therapy (PTT) by hemoglobin-functionalized copper ferrite nanoparticles (Hb-CFNPs). In the presence of a low concentration of hydrogen peroxide (H2O2), the excellent Fenton and Fenton-like reaction activity of Hb-CFNPs can effectively catalyze the decomposition of H2O2 to produce hydroxyl radicals (·OH), rendering an increase in the permeability of the bacterial cell membrane and the sensitivity to heat. With the assistance of NIR irradiation, hyperthermia generated by Hb-CFNPs can induce the death of the damaged bacteria. Additionally, owing to the outstanding magnetic property of Hb-CFNPs, it can improve the photothermal efficiency by about 20 times via magnetic enrichment, which facilitates to realize excellent bactericidal efficacy at a very low experimental dose (20 μg/mL). In vitro antibacterial experiment shows that this synergistic antibacterial strategy has a broad-spectrum antibacterial property against Gram-negative Escherichia coli (E. coli, 100%) and Gram-positive Staphylococcus aureus (S. aureus, 96.4%). More importantly, in vivo S. aureus-infected abscess treatment studies indicate that Hb-CFNPs can serve as an antibacterial candidate with negligible toxicity to realize synergistic treatment of bacterial infections through catalytic and photothermal effects. Accordingly, this study proposes a novel, high-efficiency, and multifunctional therapeutic system for the treatment of bacterial infection, which will open up a new avenue for the design of synergistic antibacterial systems in the future.
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Affiliation(s)
- Yingnan Liu
- College of Food Science and Engineering , Northwest A&F University , Yangling 712100 , Shaanxi , China
| | - Zhirong Guo
- College of Food Science and Engineering , Northwest A&F University , Yangling 712100 , Shaanxi , China
| | - Fan Li
- College of Food Science and Engineering , Northwest A&F University , Yangling 712100 , Shaanxi , China
| | - Yaqing Xiao
- College of Food Science and Engineering , Northwest A&F University , Yangling 712100 , Shaanxi , China
| | - Yalan Zhang
- College of Food Science and Engineering , Northwest A&F University , Yangling 712100 , Shaanxi , China
| | - Tong Bu
- College of Food Science and Engineering , Northwest A&F University , Yangling 712100 , Shaanxi , China
| | - Pei Jia
- College of Food Science and Engineering , Northwest A&F University , Yangling 712100 , Shaanxi , China
| | - Taotao Zhe
- College of Food Science and Engineering , Northwest A&F University , Yangling 712100 , Shaanxi , China
| | - Li Wang
- College of Food Science and Engineering , Northwest A&F University , Yangling 712100 , Shaanxi , China
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46
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Ismail M, Wu Z, Zhang L, Ma J, Jia Y, Hu Y, Wang Y. High-efficient synergy of piezocatalysis and photocatalysis in bismuth oxychloride nanomaterial for dye decomposition. CHEMOSPHERE 2019; 228:212-218. [PMID: 31029967 DOI: 10.1016/j.chemosphere.2019.04.121] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 04/14/2019] [Accepted: 04/15/2019] [Indexed: 05/25/2023]
Abstract
In this work, it is found that the hydrothermally-synthesized bismuth oxychloride can behave both the piezocatalysis and photocatalysis for the Rhodamine B dye decomposition. ∼99% decomposition efficiency is achieved after both vibrating and lighting the Rhodamine B dye solution for ∼96 min with the addition of bismuth oxychloride catalyst, while the ∼72% and ∼26% decomposition efficiencies are obtained for only photocatalysis or only piezocatalysis respectively. In bi-catalysis, the mechanical strain produced due to vibration will directly provide an electric field that will increase the separation between the photo-induced electron-hole pairs, yielding to the enhanced decomposition performance of bi-catalysis. There is no significant change in the bi-catalytic performance of bismuth oxychloride nanomaterial observed after being recycled four times. Bismuth oxychloride catalyst is potential for the bi-catalytic decomposition treatment of wastewater through harvesting both the environmental vibration energy and light energy.
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Affiliation(s)
- Muhammad Ismail
- School of Environmental and Chemical Engineering, Xi'an Polytechnic University, Xi'an, 710048, China; College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China; Department of Physics, Zhejiang Normal University, Jinhua, 321004, China
| | - Zheng Wu
- School of Environmental and Chemical Engineering, Xi'an Polytechnic University, Xi'an, 710048, China; College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China.
| | - Luohong Zhang
- School of Environmental and Chemical Engineering, Xi'an Polytechnic University, Xi'an, 710048, China.
| | - Jiangping Ma
- Department of Physics, Zhejiang Normal University, Jinhua, 321004, China
| | - Yanmin Jia
- School of Science, Xi'an University of Posts & Telecommunications, Xi'an, 710121, China; Department of Physics, Zhejiang Normal University, Jinhua, 321004, China.
| | - Yongming Hu
- Hubei Key Laboratory of Ferro- & Piezoelectric Materials and Devices, Faculty of Physics and Electronic Science, Hubei University, Wuhan, 430062, China
| | - Yaojin Wang
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
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47
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Imidacloprid photo-degradation on Ag/AgBr modified TiO2: critical impacts and quantitative study on mechanism. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-03940-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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48
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Accelerated Electron Transport and Improved Photocatalytic Activity of Ag/AgBr Under Visible Light Irradiation Based on Conductive Carbon Derived Biomass. Catal Letters 2019. [DOI: 10.1007/s10562-019-02870-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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49
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Ma S, Zhan S, Xia Y, Wang P, Hou Q, Zhou Q. Enhanced photocatalytic bactericidal performance and mechanism with novel Ag/ZnO/g-C3N4 composite under visible light. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.04.014] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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50
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Zhang X, An H, Wang R, Feng J, Fan Z, Ren Y. Low-energy disinfection under natural light by magnetic Ag Mn1−Fe2O4 in the water: Efficiency and mechanism. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.02.034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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