1
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Lei Y, Wang J, Jiang B, Liu H, Lan H, Zhang Y, Gao G. Enhanced photo-Fenton degradation of contaminants in a wide pH range via synergistic interaction between 1T and 2H MoS 2 and copolymer tea polyphenols/polypyrrole. J Colloid Interface Sci 2024; 658:74-89. [PMID: 38100978 DOI: 10.1016/j.jcis.2023.11.176] [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: 08/26/2023] [Revised: 11/24/2023] [Accepted: 11/27/2023] [Indexed: 12/17/2023]
Abstract
In this study, we present the successful development of a unique photo-Fenton catalyst, 1T-2H MoS2@TP/PPy (MTP), achieved through the coating of a copolymer of tea polyphenol (TP) and polypyrrole (PPy) onto the surface of heterophase molybdenum disulfide (1T-2H MoS2). This innovative approach involves the integration of hydrothermal synthesis with copolymerization techniques. Our strategy utilizes nanoflower-like 1T-2H MoS2 as the foundational framework, which is then enveloped in TP and PPy copolymer. This innovative approach involves the integration of hydrothermal synthesis with copolymerization techniques. Our strategy utilizes nanoflower-like 1T-2H MoS2 as the foundational framework, which is then enveloped in TP and PPy copolymer. This distinctive architecture demonstrates exceptional catalytic performance owing to the hetero-phase entanglement of 1T-2H MoS2, which provides a diverse array of active sites. The coupled structure of TP and iron (TP-Fe2+/Fe3+) effectively overcome the limitation associated with the iron source. The incorporation of PPy not only reduces the recombination of photogenerated electron-hole pairs but also enhances the stability of 1T-2H MoS2. Remarkably, our experiments on the degradation of methylene blue (MB) and tetracycline (TC) degradation demonstrate that TP-Fe2+/Fe3+ significantly expands the pH applicability range of the MTP composite catalyst. Additionally, we examine several factors, including different catalysts, H2O2 addition, variations in light intensity, solution pH, temperature fluctuations, and the role of active species, to comprehensively understand their impact on the photo-Fenton degradation process. In conclusion, MTP composite exhibits robust catalytic stability and demonstrates a broad pH utilization range in the photo-Fenton oxidation process, highlighting its promising potential for a wide range of applications.
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Affiliation(s)
- Yanhua Lei
- Institute of Marine Materials Science and Engineering, Shanghai Maritime University, Shanghai, China.
| | - Jie Wang
- Institute of Marine Materials Science and Engineering, Shanghai Maritime University, Shanghai, China
| | - Bochen Jiang
- Institute of Marine Materials Science and Engineering, Shanghai Maritime University, Shanghai, China; School of Intelligent Manufacturing and Information, Jiangsu Shipping College, Nantong 226000, China
| | - Hui Liu
- Institute of Marine Materials Science and Engineering, Shanghai Maritime University, Shanghai, China
| | - Haifeng Lan
- Institute of Marine Materials Science and Engineering, Shanghai Maritime University, Shanghai, China
| | - Yuliang Zhang
- Institute of Marine Materials Science and Engineering, Shanghai Maritime University, Shanghai, China
| | - Guanhui Gao
- Material Science and Nano Engineering Department, Rice University, Houston, TX 77005, USA.
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2
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Ji Y, Ding X, Xue Y, Wang J, Tian J. Metallic 1T phase molybdenum disulfide cocatalyst with abundant edge and substrate active sites for enhanced photocatalytic hydrogen production activity of zinc indium sulfide nanoflowers. J Colloid Interface Sci 2024; 654:1340-1347. [PMID: 37913723 DOI: 10.1016/j.jcis.2023.10.147] [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: 08/08/2023] [Revised: 10/17/2023] [Accepted: 10/27/2023] [Indexed: 11/03/2023]
Abstract
The formation of composites by loading co-catalysts on semiconductor photocatalysts to improve hydrogen (H2) evolution performance is a feasible strategy. Metallic 1T phase molybdenum disulfide (MoS2) as cocatalysts were decorated on zinc indium sulfide (ZnIn2S4) nanoflowers by a grinding method to construct 1T-MoS2@ZnIn2S4 composites. The H2 production rate of 1T-MoS2@ZnIn2S4 composites with optimum 7 wt% 1T-MoS2 loading achieves 15.6 mmol g-1 h-1, 5.5 times higher than ZnIn2S4 nanoflowers. The apparent quantum efficiency (AQY) increases from 3.1 % (ZnIn2S4 nanoflowers) to 13.0 % (1T-MoS2@ZnIn2S4 composites) under the wavelength light irradiation at λ = 370 nm. The loading of metallic 1T-MoS2 with abundant edge and substrate active sites on ZnIn2S4 can enhance visible light absorption, promote the transfer of electrons, and inhibit carrier recombination, thereby improving photocatalytic performance. This work offers inspiration for the design of composite photocatalysts with efficient photocatalytic capabilities.
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Affiliation(s)
- Yinghong Ji
- School of Materials Science and Engineering, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Xiaoyan Ding
- School of Materials Science and Engineering, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Yanjun Xue
- School of Materials Science and Engineering, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Jingjing Wang
- School of Materials Science and Engineering, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
| | - Jian Tian
- School of Materials Science and Engineering, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
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3
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Wang Y, Lin Y, Zha F, Li Y. Heterophase junction engineering: Enhanced photo-thermal synergistic catalytic performance of CO 2 reduction over 1T/2H-MoS 2. J Colloid Interface Sci 2023; 652:936-944. [PMID: 37634366 DOI: 10.1016/j.jcis.2023.08.127] [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: 06/08/2023] [Revised: 08/07/2023] [Accepted: 08/20/2023] [Indexed: 08/29/2023]
Abstract
Photocatalytic CO2 reduction technology has been proposed as a promising solution to the greenhouse effect and energy crisis. However, the lower quantum efficiency limits its practical applications. Here, we have significantly improved the photocatalytic CO2 reduction performance of MoS2 by coupling the heterophase junction (1T/2H-MoS2) construction and photo-thermal synergy strategies. At 200 °C and 42 mW·cm-2 of 420 nm LED irradiation, the CO production rate of 1T/2H-MoS2 reached 35.3 μmol·g-1·h-1, which was 3.5 and 2.8 times that of 1T-MoS2 and 2H-MoS2, respectively. In addition, only faint CO was detected under sole photo- or sole thermal catalysis conditions. Mechanism studies showed that COOH* was the key intermediate in the photo-thermal synergistic catalytic CO2 reduction over 1T/2H-MoS2. The heterophase junction engineering significantly facilitated the separation of photogenerated carriers, and the introduction of heat accelerated the charge migration and surface reaction rates. Our work provides innovative insights into the catalyst design and mechanism studies for photo-thermal synergistic catalytic CO2 reduction.
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Affiliation(s)
- Yue Wang
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China
| | - Yuhan Lin
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China.
| | - Fengjuan Zha
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China
| | - Yingxuan Li
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China; MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, PR China.
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4
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Li C, Wang X, Wu J, Gao J, Zhao R, Xia S, Yang H, Chen Z, Li L, Wang W. Harnessing ultrasound in photocatalysis: Synthesis and piezo-enhanced effect: A review. ULTRASONICS SONOCHEMISTRY 2023; 99:106584. [PMID: 37678068 PMCID: PMC10495625 DOI: 10.1016/j.ultsonch.2023.106584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 08/28/2023] [Accepted: 09/01/2023] [Indexed: 09/09/2023]
Abstract
The photocatalytic technique has drawn far-ranging interests in addressing the current issues; however, its property suffers from the limited visible light response and rapid recombination of carriers. To address these issues, two specific approaches have been proposed to enhance the photocatalytic activity: (1) ultrasound-assisted synthesis has been utilized to prepare photocatalysts, resulting in refined grain size, increased specific surface area, and reduced photogenerated carrier recombination; (2) sonophotocatalysis and piezoelectric enhanced photocatalysis have been developed to accelerate the reaction, which utilizes the synergism between ultrasound and light. On one side, sonophotocatalysis generates cavitation bubbles which induce more reactive radicals for redox reactions. On the other side, ultrasound induces deformation of the piezoelectric material structure, which changes the internal piezoelectric potential and improves the photocatalytic performance. Currently, intensive efforts have been devoted to related research and great progress has been reached with applications in pollutant degradation, new energy production, and other fields. This work starts by elucidating the fundamental concept of ultrasound-assisted photocatalyst synthesis and photocatalysis. Then, the synergistic behavior between ultrasonic and light in ultrasonic-assisted photocatalysis has been thoroughly discussed, including pollutant degradation, water splitting, and bacterial sterilization. Finally, the challenge and outlook are investigated and proposed.
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Affiliation(s)
- Chunyan Li
- College of Materials and Chemistry, China Jiliang University, 258 Xueyuan Street, Xiasha Higher Education Zone, Hangzhou 310018, China
| | - Xiaozhuo Wang
- College of Materials and Chemistry, China Jiliang University, 258 Xueyuan Street, Xiasha Higher Education Zone, Hangzhou 310018, China
| | - Jianhao Wu
- College of Materials and Chemistry, China Jiliang University, 258 Xueyuan Street, Xiasha Higher Education Zone, Hangzhou 310018, China
| | - Jingyang Gao
- College of Materials and Chemistry, China Jiliang University, 258 Xueyuan Street, Xiasha Higher Education Zone, Hangzhou 310018, China
| | - Rixu Zhao
- China Construction Ready Mixed Concrete Co., Ltd., Wuhan 430070, China
| | - Sasa Xia
- College of Materials and Chemistry, China Jiliang University, 258 Xueyuan Street, Xiasha Higher Education Zone, Hangzhou 310018, China
| | - Hua Yang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, MOA Laboratory of Quality & Safety Risk Assessment for Agro-products (Hangzhou), Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Zhi Chen
- College of Materials and Chemistry, China Jiliang University, 258 Xueyuan Street, Xiasha Higher Education Zone, Hangzhou 310018, China.
| | - Lan Li
- College of Materials and Chemistry, China Jiliang University, 258 Xueyuan Street, Xiasha Higher Education Zone, Hangzhou 310018, China.
| | - Wen Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, MOA Laboratory of Quality & Safety Risk Assessment for Agro-products (Hangzhou), Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
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5
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Chen J, Chen Z, Zhao W, Liu Y, Wu J, Wang W, Chen X, Gao J, Hu J, Xie L, Wei Q, Li L. Construction of SiO2 decorated 1T/2H-MoS2 for photocatalytic degradation of antibiotic residues in water. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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6
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Chen M, Chang W, Zhang J, Zhao W, Chen Z. Preparation of a Hybrid TiO 2 and 1T/2H-MoS 2 Photocatalyst for the Degradation of Tetracycline Hydrochloride. ACS OMEGA 2023; 8:15458-15466. [PMID: 37151546 PMCID: PMC10157676 DOI: 10.1021/acsomega.3c00730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 04/11/2023] [Indexed: 05/09/2023]
Abstract
Water pollution caused by antibiotics is a growing problem. Semiconductor photocatalysis is an environmentally friendly technology that can effectively degrade organic pollutants in water. Therefore, the development of efficient photocatalysts is of great significance to solve the environmental pollution problem. In this paper, mixed-phase TiO2 and 1T/2H-MoS2 composite (1T/2H-MoS2/TiO2) were synthesized by the in situ growth method. The prepared compounds were characterized and applied to the visible-light degradation of tetracycline hydrochloride. The photocatalytic effect of 1T/2H-MoS2/TiO2 on tetracycline hydrochloride is significantly enhanced under visible light and has good stability. It has potential applications in the treatment of organic pollutants in water.
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Affiliation(s)
- Miaogen Chen
- Key
Laboratory of Intelligent Manufacturing Quality Big Data Tracing and
Analysis of Zhejiang Province, College of Science, China Jiliang University, Hangzhou 310018, China
| | - Wenya Chang
- Key
Laboratory of Intelligent Manufacturing Quality Big Data Tracing and
Analysis of Zhejiang Province, College of Science, China Jiliang University, Hangzhou 310018, China
| | - Jing Zhang
- Key
Laboratory of Intelligent Manufacturing Quality Big Data Tracing and
Analysis of Zhejiang Province, College of Science, China Jiliang University, Hangzhou 310018, China
| | - Wan Zhao
- College
of Materials and Chemistry, China Jiliang
University, Hangzhou 310018, China
| | - Zhi Chen
- College
of Materials and Chemistry, China Jiliang
University, Hangzhou 310018, China
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7
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Venkateshwaran S, Ajith A, Duraisamy V, Krishnan A, Senthil Kumar SM. Tailoring of 1T Phase-Domain MoS 2 Active Sites with Bridging S 22-/Apical S 2- Phase-Selective Precursor Modulation for Enriched HER Kinetics. Inorg Chem 2023; 62:841-852. [PMID: 36599060 DOI: 10.1021/acs.inorgchem.2c03608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Molybdenum disulfide (MoS2) is a promising alternative electrocatalyst for hydrogen evolution reaction (HER) due to its relatively near zero hydrogen adsorption free energy (ΔGH = 0.08) and availability as a metallic (1T) phase. The superior catalytic activity of the 1T phase over 2H is owing to the availability of dense active sites, 107 fold higher conductivity, and greater hydrophilicity. However, in the synthesis of 1T-MoS2, a highly controlled proficient method is indispensable due to its metastable nature. Besides, phase enrichment is greatly sensitive to experimental parameters such as precursor, temperature, reaction time, and solvent. In the context of precursors, to date, no single precursor has been recognized as a selective precursor for the synthesis of 1T-MoS2. In this work, MoS2 with high content of 1T phase (79.4%) and excessive bridging S22-/apical S2- sites has been formulated from a single precursor, that is, ammonium tetrathiomolybdate ((NH4)2MoS4), ATTM). In HER, it displayed an inspired activity, that is, achieving 10 mA cm-2 current density, it requires just 248 mV overpotential with a minimal Tafel slope value (56 mV/dec). The maximum enrichment of the 1T phase, abundant accumulation of catalytically active bridging S22-/apical S2- sites, and the complete reduction of Mo+6 to Mo+4 (absence of Mo+6) are root causes for the outstanding activity of the synthesized 1T phase-domain MoS2. To the best of our knowledge for the very first time, here, we declare that the single source, that is, ATTM is an exclusive precursor for the selective synthesis of 1T-MoS2 with advantageous structural features. Moreover, this expedient precursor could be more pertinent for the industrial-scale preparation of 1T phase-domain MoS2 in near future.
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Affiliation(s)
- Selvaraj Venkateshwaran
- Electroorganic and Materials Electrochemistry (EME) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Akhila Ajith
- Department of Chemistry, Amrita Vishwa Vidyapeetham, Amritapuri 690525, Kerala, India
| | - Velu Duraisamy
- Electroorganic and Materials Electrochemistry (EME) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Athira Krishnan
- Department of Chemistry, Amrita Vishwa Vidyapeetham, Amritapuri 690525, Kerala, India
| | - Sakkarapalayam Murugesan Senthil Kumar
- Electroorganic and Materials Electrochemistry (EME) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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8
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Development of a magnetic MoS 2 system camouflaged by lipid for chemo/phototherapy of cancer. Colloids Surf B Biointerfaces 2022; 213:112389. [PMID: 35158219 DOI: 10.1016/j.colsurfb.2022.112389] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 01/03/2022] [Accepted: 01/31/2022] [Indexed: 12/22/2022]
Abstract
Untargeted release of traditional chemotherapeutic drugs can damage normal tissues in the body and cause serious side effects for patients. Therefore, the research of targeted drug delivery system based on nanomaterials has become a hot topic in the field of cancer therapy. Magnetic molybdenum disulfide (mMoS2) was modified by liposomes with a cell membrane-like structure to prepare nanocarrier complex (mMoS2-Lipid) with high biocompatibility and stability. Then, combined photo-chemotherapeutic therapy was realized both in vitro and in vivo by its ultra-high photothermal conversion efficiency and excellent drug loading profile of mMoS2-Lipid. The characterization showed that the lamellar magnetic molybdenum disulfide modified by liposomes was not easy to aggregate in physiological solution, and had a lower non-specific protein adsorption rate, which was beneficial for biomedical application. In vitro cell experiments exhibited a successful cellular uptake profile of MCF-7 cells with no significant cytotoxicity, while a concentration dependent cytotoxicity for both chemotherapy alone and photo-chemotherapy combined therapy. Compared with the unmodified mMoS2, mMoS2-Lipid injected into mice through tail vein can accumulate more in the tumor site, and in vivo anti-tumor studies have shown that the synergistic treatment of the mMoS2-Lipid has an obvious inhibitory effect on the tumor with less toxic and side effects on mice. In conclusion, mMoS2-Lipid treatment system provides a safe, rapid and effective choice for the treatment of breast cancer in the future.
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9
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Martin MA, Sivaguru J, McEvoy J, Sonthiphand P, Khan E. Photolytic fate of (E)- and (Z)-endoxifen in water and treated wastewater exposed to sunlight. ENVIRONMENTAL RESEARCH 2021; 197:111121. [PMID: 33823193 DOI: 10.1016/j.envres.2021.111121] [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: 12/11/2020] [Revised: 03/16/2021] [Accepted: 03/31/2021] [Indexed: 06/12/2023]
Abstract
Endoxifen is the main active metabolite of a common cytostatic drug, tamoxifen. Endoxifen has been recently detected in the final effluent of municipal wastewater treatment plants. The antiestrogenic activity of endoxifen could bring negative effects to aquatic life if released to the water environment. This study elucidated the fate and susceptibility of (E)- and (Z)-endoxifen (2 μg mL-1, 1:1 wt ratio between the two easily interchangeable isomers) in wastewater and receiving surface water to sunlight. Phototransformation by-products (PBPs) and their toxicity were determined. Sunlight reduced at least 83% of endoxifen concentration in wastewater samples, whereas in surface water samples, 60% of endoxifen was photodegraded after 180 min of the irradiation. In ultrapure water samples spiked with endoxifen, PBPs were mainly generated via con-rotatory 6π-photocyclization, followed by oxidative aromatization. These PBPs underwent secondary reactions leading to a series of PBPs with different molecular weights. Eight PBPs were identified and the toxicity analysis via the Toxicity Estimation Software Tool revealed that seven of these PBPs are more toxic than endoxifen itself. This is likely due to the formation of poly-aromatic core in the PBPs due to exposure to sunlight. Therefore, highly toxic PBPs may be generated if endoxifen is present in water and wastewater exposed to sunlight. The presence, fates and activities of these PBPs in surface water especially at locations close to treated wastewater discharge points should be investigated.
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Affiliation(s)
- Marina Ariño Martin
- Environmental and Conservation Sciences Program, North Dakota State University, Fargo, ND, 58108, USA; International Postgraduate Programs in Environmental Management, Graduate School Chulalongkorn University, Bangkok, 10330, Thailand.
| | - Jayaraman Sivaguru
- Center for Photochemical Sciences and Department of Chemistry, Bowling Green State University, Bowling Green, OH, 43403, USA.
| | - John McEvoy
- Department of Microbiological Sciences, North Dakota State University, Fargo, ND, 58108, USA.
| | | | - Eakalak Khan
- Department of Civil and Environmental Engineering and Construction, University of Nevada, Las Vegas, Las Vegas, NV, 89154, USA.
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10
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Chen M, Sun T, Zhao W, Yang X, Chang W, Qian X, Yang Q, Chen Z. In Situ Growth of Metallic 1T-MoS 2 on TiO 2 Nanotubes with Improved Photocatalytic Performance. ACS OMEGA 2021; 6:12787-12793. [PMID: 34056429 PMCID: PMC8154240 DOI: 10.1021/acsomega.1c01068] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 04/21/2021] [Indexed: 06/12/2023]
Abstract
1T-MoS2 is in situ grown on TiO2 nanotubes (TNTs) using a hydrothermal method, forming a 1T-MoS2@TNTs composite, which is confirmed by its physical characterization. The prepared composites show enhanced photocatalytic performance for the degradation of tetracycline hydrochloride under visible light, and the improved photocatalytic activity is closely related to the loaded amount of 1T-MoS2. Therein, 0.5 wt % 1T-MoS2@TNTs can degrade 57% in 1 h, which is the highest photocatalytic efficiency observed in experiments so far. It is speculated that the introduction of 1T-MoS2 may optimize light absorption and charge separation/transport. The active species are identified and the reaction mechanism is proposed here.
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Affiliation(s)
- Miaogen Chen
- Key
Laboratory of Intelligent Manufacturing Quality Big Data Tracing and
Analysis of Zhejiang Province, Department of Physics, China Jiliang University, Hangzhou 310018, China
| | - Tao Sun
- Key
Laboratory of Intelligent Manufacturing Quality Big Data Tracing and
Analysis of Zhejiang Province, Department of Physics, China Jiliang University, Hangzhou 310018, China
| | - Wan Zhao
- College
of Materials and Chemistry, China Jiliang
University, Hangzhou 310018, China
| | - Xiuru Yang
- College
of Materials and Chemistry, China Jiliang
University, Hangzhou 310018, China
| | - Wenya Chang
- Key
Laboratory of Intelligent Manufacturing Quality Big Data Tracing and
Analysis of Zhejiang Province, Department of Physics, China Jiliang University, Hangzhou 310018, China
| | - Xiaoxiao Qian
- College
of Materials and Chemistry, China Jiliang
University, Hangzhou 310018, China
| | - Qian Yang
- College
of Materials and Chemistry, China Jiliang
University, Hangzhou 310018, China
| | - Zhi Chen
- College
of Materials and Chemistry, China Jiliang
University, Hangzhou 310018, China
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11
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Kesavan D, Mariappan VK, Pazhamalai P, Krishnamoorthy K, Kim SJ. Topochemically synthesized MoS 2 nanosheets: A high performance electrode for wide-temperature tolerant aqueous supercapacitors. J Colloid Interface Sci 2021; 584:714-722. [PMID: 33268065 DOI: 10.1016/j.jcis.2020.09.088] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 09/22/2020] [Indexed: 01/23/2023]
Abstract
This work describes the formation of two-dimensional molybdenum di-sulfide (MoS2) nanosheets via topochemical sulfurization of MoO3 microplates and its applications towards wide-temperature tolerant supercapacitors. Physico-chemical characterizations such as XRD, FE-SEM, HR-TEM, XPS and elemental mapping analysis revealed the formation of MoS2 nanosheets with lateral size in the range of 200 nm. The electrochemical properties of the MoS2 electrode using three-electrode configuration tests revealed the presence of pseudocapacitive mechanism of charge-storage with a high capacitance (119.38 F g-1) from cyclic voltammetry profiles and superior cyclic stability of 95.1% over 2000 cycles. The symmetric supercapacitor (SSC) fabricated using MoS2 electrodes delivered a high-energy density (6.56 Wh kg-1) and high-power density (2500 W kg-1) with long cycle life. The electrochemical performance of the MoS2 SSC exhibited ~121% improvement at 80 °C compared to that achieved at 20 °C and the mechanism of improved properties were examined with the use of electrochemical impedance spectroscopy. These experimental results indicate usefulness of topochemically synthesized MoS2 for construction of wide-temperature tolerant supercapacitors that can be useful in a variety of industrial sectors.
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Affiliation(s)
- Dhanasekar Kesavan
- Nanomaterials and System Laboratory, Major of Mechatronics Engineering, Faculty of Applied Energy System, Jeju National University, Jeju 63243, Republic of Korea
| | - Vimal Kumar Mariappan
- Nanomaterials and System Laboratory, Major of Mechatronics Engineering, Faculty of Applied Energy System, Jeju National University, Jeju 63243, Republic of Korea
| | - Parthiban Pazhamalai
- Nanomaterials and System Laboratory, Major of Mechatronics Engineering, Faculty of Applied Energy System, Jeju National University, Jeju 63243, Republic of Korea
| | - Karthikeyan Krishnamoorthy
- Nanomaterials and System Laboratory, Major of Mechatronics Engineering, Faculty of Applied Energy System, Jeju National University, Jeju 63243, Republic of Korea
| | - Sang-Jae Kim
- Nanomaterials and System Laboratory, Major of Mechatronics Engineering, Faculty of Applied Energy System, Jeju National University, Jeju 63243, Republic of Korea; Department of Advanced Convergence Science and Technology, Jeju National University, Jeju 63243, Republic of Korea.
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12
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Yang X, Chen Z, Zhao W, Liu C, Qian X, Zhang M, Wei G, Khan E, Hau Ng Y, Sik Ok Y. Recent advances in photodegradation of antibiotic residues in water. CHEMICAL ENGINEERING JOURNAL (LAUSANNE, SWITZERLAND : 1996) 2021; 405:126806. [PMID: 32904764 PMCID: PMC7457966 DOI: 10.1016/j.cej.2020.126806] [Citation(s) in RCA: 107] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 08/11/2020] [Accepted: 08/24/2020] [Indexed: 05/21/2023]
Abstract
Antibiotics are widely present in the environment due to their extensive and long-term use in modern medicine. The presence and dispersal of these compounds in the environment lead to the dissemination of antibiotic residues, thereby seriously threatening human and ecosystem health. Thus, the effective management of antibiotic residues in water and the practical applications of the management methods are long-term matters of contention among academics. Particularly, photocatalysis has attracted extensive interest as it enables the treatment of antibiotic residues in an eco-friendly manner. Considerable progress has been achieved in the implementation of photocatalytic treatment of antibiotic residues in the past few years. Therefore, this review provides a comprehensive overview of the recent developments on this important topic. This review primarily focuses on the application of photocatalysis as a promising solution for the efficient decomposition of antibiotic residues in water. Particular emphasis was laid on improvement and modification strategies, such as augmented light harvesting, improved charge separation, and strengthened interface interaction, all of which enable the design of powerful photocatalysts to enhance the photocatalytic removal of antibiotics.
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Affiliation(s)
- Xiuru Yang
- College of Materials and Chemistry, China Jiliang University, 258 Xueyuan Street, Xiasha Higher Education Zone Hangzhou, 310018, China
| | - Zhi Chen
- College of Materials and Chemistry, China Jiliang University, 258 Xueyuan Street, Xiasha Higher Education Zone Hangzhou, 310018, China
| | - Wan Zhao
- College of Materials and Chemistry, China Jiliang University, 258 Xueyuan Street, Xiasha Higher Education Zone Hangzhou, 310018, China
| | - Chunxi Liu
- College of Materials and Chemistry, China Jiliang University, 258 Xueyuan Street, Xiasha Higher Education Zone Hangzhou, 310018, China
| | - Xiaoxiao Qian
- College of Materials and Chemistry, China Jiliang University, 258 Xueyuan Street, Xiasha Higher Education Zone Hangzhou, 310018, China
| | - Ming Zhang
- Department of Environmental Engineering, China Jiliang University, 258 Xueyuan Street, Xiasha Higher Education Zone Hangzhou, 310018, China
| | - Guoying Wei
- College of Materials and Chemistry, China Jiliang University, 258 Xueyuan Street, Xiasha Higher Education Zone Hangzhou, 310018, China
| | - Eakalak Khan
- Department of Civil and Environmental Engineering and Construction, University of Nevada, Las Vegas, NV 89154, USA
| | - Yun Hau Ng
- School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong Special Administrative Region, China
| | - Yong Sik Ok
- Korea Biochar Research Center, APRU Sustainable Waste Management & Division of Environmental Science and Ecological Engineering, Korea University, Seoul, South Korea
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Production and Properties of Molybdenum Disulfide/Graphene Oxide Hybrid Nanostructures for Catalytic Applications. NANOMATERIALS 2020; 10:nano10091865. [PMID: 32957616 PMCID: PMC7558719 DOI: 10.3390/nano10091865] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 09/09/2020] [Accepted: 09/14/2020] [Indexed: 11/24/2022]
Abstract
Molybdenum disulfide (MoS2) can be an excellent candidate for being combined with carbon nanomaterials to obtain new hybrid nanostructures with outstanding properties, including higher catalytic activity. The aim of the conducted research was to develop the novel production method of hybrid nanostructures formed from MoS2 and graphene oxide (GO). The nanostructures were synthesized in different weight ratios and in two types of reactors (i.e., impinging jet and semi-batch reactors). Physicochemical analysis of the obtained materials was carried out, using various analytical techniques: particle size distribution (PSD), thermogravimetric analysis (TGA), FT-IR spectroscopy, X-ray diffraction (XRD), and scanning electron microscopy (SEM). Due to the potential application of materials based on MoS2 as the catalyst for hydrogen evolution reaction, linear sweep voltammetry (LSV) of the commercial MoS2, synthesized MoS2 and the obtained hybrid nanostructures was performed using a three-electrode system. The results show that the developed synthesis of hybrid MoS2/GO nanostructures in continuous reactors is a novel and facile method for obtaining products with desired properties. The hybrid nanostructures have shown better electrochemical properties and higher onset potentials compared to MoS2 nanoparticles. The results indicate that the addition of carbon nanomaterials during the synthesis improves the activity and stability of the MoS2 nanoparticles.
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