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Dharmalingam K, Thangavel E, Tsai PC, Pham PV, Prakasham K, Andaluri G, Manjappa KB, Lin YC, Ponnusamy VK. Novel MoS 2-In 2O 3-WS 2 (2D/3D/2D) ternary heterostructure nanocomposite material: Efficient photocatalytic degradation of antimicrobial agents under visible-light. ENVIRONMENTAL RESEARCH 2024; 261:119759. [PMID: 39122163 DOI: 10.1016/j.envres.2024.119759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 07/15/2024] [Accepted: 08/06/2024] [Indexed: 08/12/2024]
Abstract
Fabrication of ternary composited photocatalytic nanomaterials with strong interaction is vital to deriving the fast charge separation for efficient photodegradation of organic contaminants in wastewater under visible light. In this work, novel ternary 2D/3D/2D MoS2-In2O3-WS2 multi-nanostructures were synthesized using facile hydrothermal processes. XRD, FTIR, and XPS results confirmed the phase, functional groups, and element composition of pure MoS2, MoS2-In2O3, and MoS2-In2O3-WS2 hybrids. UV-DRS spectra of the MoS2-In2O3-WS2 ternary hybrid indicate maximum absorption in the visible light range with a band-gap energy value of 2.4 eV. The surface of the 2D WS2 nanosheet structure tightly blends and densely disperses 2D MoS2 nanosheets and 3D In2O3 nanocubes. This confirmed the formation of the MoS2-In2O3-WS2 ternary hybrid in the form of 2D/3D/2D multi-nanostructures, which is also indicated from SEM and HR-TEM images. The synthesized MoS2-In2O3-WS2 ternary hybrid showed maximum photocatalytic activity under visible-light for antimicrobial agents such as triclosan (TCS) and trichlorocarban (TCC). The photocatalytic activity of TCS was revealed to be 95% at 90 min, while that of TCC was 93% at 100 min. The reusability and stability tests of the prepared MoS2-In2O3-WS2 ternary hybrid after four consecutive photocatalytic cycles were analyzed by FTIR and SEM, which indicated that the prepared ternary hybrid was very stable. Overall results suggested that the developed MoS2-In2O3-WS2 (2D/3D/2D) multi-nanostructures are environmentally friendly and low-cost nanocomposites as a potential photocatalyst for the removal of antimicrobial agents from wastewater.
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Affiliation(s)
- Karthigaimuthu Dharmalingam
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung City, 807, Taiwan; Smart Energy Materials Research Laboratory, Department of Energy Science and Technology, Periyar University, Salem, India
| | - Elangovan Thangavel
- Smart Energy Materials Research Laboratory, Department of Energy Science and Technology, Periyar University, Salem, India.
| | - Pei-Chien Tsai
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung City, 807, Taiwan; Department of Computational Biology, Institute of Bioinformatics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, 602105, India
| | - Phuong V Pham
- Department of Physics, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan
| | - Karthikeyan Prakasham
- Research Center for Precision Environmental Medicine, Kaohsiung Medical University, Kaohsiung City, 807, Taiwan
| | - Gangadhar Andaluri
- Civil and Environmental Engineering Department, College of Engineering, Temple University, Philadelphia, United States
| | - Kiran B Manjappa
- Graduate Programme for Biomedical and Materials Science, College of Science, Tunghai University, Taichung City, Taiwan
| | - Yuan-Chung Lin
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan; Center for Emerging Contaminants Research, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan.
| | - Vinoth Kumar Ponnusamy
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung City, 807, Taiwan; Research Center for Precision Environmental Medicine, Kaohsiung Medical University, Kaohsiung City, 807, Taiwan; Center for Emerging Contaminants Research, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan; Department of Medical Research, Kaohsiung Medical University Hospital (KMUH), Kaohsiung City, 807, Taiwan; Department of Chemistry, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan.
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2
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Moradi-Bieranvand M, Farhadi S, Zabardasti A, Mahmoudi F. Construction of magnetic MoS 2/NiFe 2O 4/MIL-101(Fe) hybrid nanostructures for separation of dyes and antibiotics from aqueous media. RSC Adv 2024; 14:11037-11056. [PMID: 38586447 PMCID: PMC10995676 DOI: 10.1039/d4ra00505h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 04/02/2024] [Indexed: 04/09/2024] Open
Abstract
In this study, MoS2/NiFe2O4/MIL-101(Fe) nanocomposite was synthesized by hydrothermal method and used as an adsorbent for the elimination of organic dyes and some antibiotic drugs in aqueous solutions. The synthesized nanocomposite underwent characterization through different techniques, including scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), Brunauer-Emmett-Teller (BET) surface area analysis, Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), zeta potential analysis, vibrating sample magnetometry (VSM), and UV-vis diffuse reflectance spectroscopy (UV-vis DRS). These results demonstrated the successful insertion of MoS2within the cavities of MIL-101(Fe). The as-prepared magnetic nanocomposite was used as a new magnetic adsorbent for removing methylene blue (MB) and rhodamine B (RhB) organic dyes and tetracycline (TC) and ciprofloxacin (CIP) antibiotic drugs. For achieving the optimized conditions, the effects of initial pH, initial dye and drug concentration, temperature, and adsorbent dose on MB, TC, and CIP elimination were investigated. The results revealed that at a temperature of 25 °C, the highest adsorption capacities of MoS2/NiFe2O4/MIL-101(Fe) for MB, TC, and CIP were determined to be 999.1, 2991.3, and 1994.2 mg g-1, respectively. The pseudo-second-order model and Freundlich model are considered suitable for explaining the adsorption behavior of the MoS2/NiFe2O4/MIL-101(Fe) nanocomposite. The magnetic nanocomposite was very stable and had good recycling capability without any change in its structure.
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Affiliation(s)
- Mehri Moradi-Bieranvand
- Department of Inorganic Chemistry, Faculty of Chemistry, Lorestan University Khorramabad 68151-44316 Iran
| | - Saeed Farhadi
- Department of Inorganic Chemistry, Faculty of Chemistry, Lorestan University Khorramabad 68151-44316 Iran
| | - Abedin Zabardasti
- Department of Inorganic Chemistry, Faculty of Chemistry, Lorestan University Khorramabad 68151-44316 Iran
| | - Farzaneh Mahmoudi
- Department of Chemistry, University of Miami Coral Gables Florida 33146 USA
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3
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Yao Q, Guo J, Guan F, Li J, Bao D, He J, Ji X, Song X, Yang Q. Molybdenum disulfide nanoflowers - doped sodium alginate/polyvinyl alcohol porous xerogel for methylene blue and copper ion adsorption. Int J Biol Macromol 2023; 253:127397. [PMID: 37827402 DOI: 10.1016/j.ijbiomac.2023.127397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 09/13/2023] [Accepted: 10/09/2023] [Indexed: 10/14/2023]
Abstract
In order to improve the adsorption performance of MoS2, as well as to solve the problems of MoS2-powder in adsorption, which is prone to agglomeration and difficulty to be recycled, we prepared MoS2-nanoflowers(MoS2-NFs), and mixed them with sodium alginate/polyvinyl alcohol(SA/PVA) to prepare MoS2-NFs/SA/PVA xerogel(MSP) by freezing-lyophilization. Then two forms of xerogels - block-MSP(MSPB) and spherical-MSP(MSPS) were prepared, and they were used as methylene blue(MB) and Cu2+ adsorbent. It was found that MoS2-NFs were evenly dispersed inside the SA/PVA with no agglomeration, while the interior of MSPB/MSPS showed the structure of parallel-pores and radial-pores, respectively. The adsorption capacity of MSPB/MSPS on MB can reach 233 mg/g, which is five times higher than SA/PVA-gel, showing excellent synergistic-adsorption effect, and the adsorption capacity for Cu2+ reaches 271 mg/g. The adsorption mechanism indicated that the adsorption of MB by MSPB/MSPS conformed to pseudo-first-order model, with electrostatic force as the main force. And their adsorption of Cu2+ conformed to pseudo-second-order model and was dominated by Lewis acid/base soft-soft interactions. Notably, after long-term adsorption, MSPB/MSPS maintains its shape and more than 90 % of the adsorption capacity, ensuring the recovery and reuse of materials. So, MSPB/MSPS has great potential in adsorption, providing a new solution for sewage purification.
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Affiliation(s)
- Qiang Yao
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Jing Guo
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, China; State Key Laboratory of Bio-Fibers and Eco-Textiles (Qingdao University), Qingdao 266071, China.
| | - Fucheng Guan
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, China.
| | - Jia Li
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Da Bao
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Jiahao He
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Xinbin Ji
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Xuecui Song
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Qiang Yang
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, China
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Joshi B, Khalil AM, Zhang S, Memon FA, Yang Z. Application of 2D MoS 2 Nanoflower for the Removal of Emerging Pollutants from Water. ACS ENGINEERING AU 2023; 3:461-476. [PMID: 38144680 PMCID: PMC10739627 DOI: 10.1021/acsengineeringau.3c00032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/20/2023] [Accepted: 09/22/2023] [Indexed: 12/26/2023]
Abstract
Two-dimensional (2D) nanomaterial-MoS2 (molybdenum disulfide) has gained interest among researchers, owing to its exceptional mechanical, biological, and physiochemical properties. This paper reports on the removal of organic dyes and an emerging contaminant, Ciprofloxacin, by a 2D MoS2 nanoflower as an adsorbent. The material was prepared by a green hydrothermal technique, and its high Brunauer-Emmett-Teller-specific area of 185.541m2/g contributed to the removal of 96% rhodamine-B dye and 85% Ciprofloxacin. Various characterizations, such as X-ray diffraction, scanning electron microscopy linked with energy-dispersive spectroscopy, and transmission electron microscopy, revealed the nanoflower structure with good crystallinity. The feasibility and efficacy of 2D MoS2 nanoflower as a promising adsorbent candidate for the removal of emerging pollutants was confirmed in-depth in batch investigations, such as the effects of adsorption time, MoS2 dosages, solution pH, and temperature. The adsorption mechanism was further investigated based on thermodynamic calculations, adsorption kinetics, and isotherm modeling. The results confirmed the exothermic nature of the enthalpy-driven adsorption as well as the fast kinetics and physisorption-controlled adsorption process. The recyclability potential of 2D MoS2 exceeds four regeneration recycles. MoS2 nanoflower has been shown to be an effective organic pollutant removal adsorbent in water treatment.
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Affiliation(s)
- Bhavya Joshi
- Faculty of Environment, Science
and Economy, University of Exeter, Exeter EX4 4QF, U.K.
| | - Ahmed M.E. Khalil
- Faculty of Environment, Science
and Economy, University of Exeter, Exeter EX4 4QF, U.K.
| | - Shaowei Zhang
- Faculty of Environment, Science
and Economy, University of Exeter, Exeter EX4 4QF, U.K.
| | - Fayyaz A. Memon
- Faculty of Environment, Science
and Economy, University of Exeter, Exeter EX4 4QF, U.K.
| | - Zhuxian Yang
- Faculty of Environment, Science
and Economy, University of Exeter, Exeter EX4 4QF, U.K.
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5
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Nikitha M, Elanchezhiyan SS, Meenakshi S. Photodegradation of rhodamine-B in aqueous environment using visible-active gC 3N 4@CS-MoS 2 nanocomposite. ENVIRONMENTAL RESEARCH 2023; 238:117032. [PMID: 37673121 DOI: 10.1016/j.envres.2023.117032] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 08/07/2023] [Accepted: 08/30/2023] [Indexed: 09/08/2023]
Abstract
Rapid industrial expansion leads to environmental pollution especially in an aqueous environment. Photocatalytic degradation is one of the most efficient and environmentally friendly techniques used to treat industrial pollution due to its complete degradation capability of a variety of water contaminants to their non-toxic state. Graphitic carbon nitride (gC3N4) and molybdenum disulfide (MoS2) provide efficient dye degradation, but MoS2 has few disadvantages. Hence, chitosan (CS) supported gC3N4-MoS2 hybrid nanocomposite was developed in this study to reduce these issues by accelerating the degradation of dye molecules such as rhodamine-B under visible light. The prepared gC3N4@CS-MoS2 hybrid nanocomposite was thoroughly characterized using various analytical tools including FTIR, XRD, SEM, EDX, XPS, UV-Visible, and PL spectra. Several influencing parameters such as irradiation time, initial pH, dosage, and initial dye concentration were optimized by batch mode. The photodegradation of rhodamine-B could be induced by the heterogeneous gC3N4@CS-MoS2-water hybrid nanocomposite. The narrow band gap of gC3N4@CS-MoS2 (1.80 eV) makes it suitable for effective degradation of rhodamine-B due to more active in the visible region and attained its highest degradation efficiency of 99% after 40 min at pH 8 with minimum dosage of 60 mg. The possible degradation mechanism was tentatively proposed for rhodamine-B dye molecules from aqueous environment. The present work shows a novel photocatalyst for the purification and detoxification of dye molecules as well as other water contaminants found in polluted wastewater.
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Affiliation(s)
- M Nikitha
- Department of Chemistry, The Gandhigram Rural Institute-Deemed to be University, Gandhigram, 624 302, Tamil Nadu, India.
| | - S Sd Elanchezhiyan
- Sethu Institute of Technology, Department of Chemistry, Kariapatti, Virthunagar District, Tamil Nadu, India.
| | - S Meenakshi
- Department of Chemistry, The Gandhigram Rural Institute-Deemed to be University, Gandhigram, 624 302, Tamil Nadu, India.
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6
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Kaur M, Kumar V, Awasthi A, Singh K. Gum arabic-assisted green synthesis of biocompatible MoS 2 nanoparticles for methylene blue photodegradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:112847-112862. [PMID: 37840085 DOI: 10.1007/s11356-023-30116-4] [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: 04/13/2023] [Accepted: 09/24/2023] [Indexed: 10/17/2023]
Abstract
The current work reports the gum arabic-mediated greener synthesis of MoS2 nanoparticles (NPs) and its utilization for the solar light-assisted degradation of methylene blue. Furthermore, the safety analyses were performed on human-beneficial gut bacterium, L. delbrueckii, and human blood cells to confirm the biocompatibility of NPs synthesized. Antioxidant and antimicrobial activities were done to explore their usefulness for biological applications. Sonication and microwave treatment were used to obtain spherical 10-12 nm MoS2 NPs as characterized using high-resolution transmission electron microscopy. FT-IR characterization revealed the occurrence of gum arabic on the NPs surface. The MoS2 NPs exhibited ~ 98% MB degradation within 8 h under direct sunlight exposure. Moreover, the reusability studies have also been evaluated and free radical trapping experiments indicated that superoxide (•O2-) is the dominant active species of the reaction system. Furthermore, 98.89% MB degradation efficiency was observed within 150 min in the case of real textile industry MB effluent samples. Untreated MB inhibited the growth of L. delbrueckii on MRS agar plates, while growth was observed in the case of MoS2 NPs-treated MB samples indicating safety of current MB degradation approach. MoS2 NPs inhibited the growth of E. coli MTCC1698 and S. aureus MTCC 3160 with 26 mm and 21 mm zone of inhibition, respectively. Furthermore, MoS2 NPs have shown antioxidant properties, resulting in 82.3 ± 0.43% of DPPH scavenging activity which was comparable to ascorbic acid (81.6 ± 0.6%), a standard antioxidant molecule. The NPs have not shown any hemolytic activity at 0.0625 and 0.125 mg/mL doses to human blood proving their biocompatible nature. Gum arabic-synthesized biocompatible MoS2 NPs have good potential to treat MB released as waste from the textile industry and other biological applications.
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Affiliation(s)
- Mandeep Kaur
- Department of Biotechnology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Vineet Kumar
- Department of Biotechnology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India.
| | - Abhishek Awasthi
- Department of Biotechnology, School of Basic and Applied Sciences, Maharaja Agrasen University, Baddi, Himachal Pradesh, 174103, India
| | - Kulvinder Singh
- Department of Chemistry, DAV College, Sector 10, Chandigarh, UT, 160011, India
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7
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Lee SJ, Jang H, Lee DN. Recent advances in nanoflowers: compositional and structural diversification for potential applications. NANOSCALE ADVANCES 2023; 5:5165-5213. [PMID: 37767032 PMCID: PMC10521310 DOI: 10.1039/d3na00163f] [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: 03/14/2023] [Accepted: 08/02/2023] [Indexed: 09/29/2023]
Abstract
In recent years, nanoscience and nanotechnology have emerged as promising fields in materials science. Spectroscopic techniques like scanning tunneling microscopy and atomic force microscopy have revolutionized the characterization, manipulation, and size control of nanomaterials, enabling the creation of diverse materials such as fullerenes, graphene, nanotubes, nanofibers, nanorods, nanowires, nanoparticles, nanocones, and nanosheets. Among these nanomaterials, there has been considerable interest in flower-shaped hierarchical 3D nanostructures, known as nanoflowers. These structures offer advantages like a higher surface-to-volume ratio compared to spherical nanoparticles, cost-effectiveness, and environmentally friendly preparation methods. Researchers have explored various applications of 3D nanostructures with unique morphologies derived from different nanoflowers. The nanoflowers are classified as organic, inorganic and hybrid, and the hybrids are a combination thereof, and most research studies of the nanoflowers have been focused on biomedical applications. Intriguingly, among them, inorganic nanoflowers have been studied extensively in various areas, such as electro, photo, and chemical catalysis, sensors, supercapacitors, and batteries, owing to their high catalytic efficiency and optical characteristics, which arise from their composition, crystal structure, and local surface plasmon resonance (LSPR). Despite the significant interest in inorganic nanoflowers, comprehensive reviews on this topic have been scarce until now. This is the first review focusing on inorganic nanoflowers for applications in electro, photo, and chemical catalysts, sensors, supercapacitors, and batteries. Since the early 2000s, more than 350 papers have been published on this topic with many ongoing research projects. This review categorizes the reported inorganic nanoflowers into four groups based on their composition and structure: metal, metal oxide, alloy, and other nanoflowers, including silica, metal-metal oxide, core-shell, doped, coated, nitride, sulfide, phosphide, selenide, and telluride nanoflowers. The review thoroughly discusses the preparation methods, conditions for morphology and size control, mechanisms, characteristics, and potential applications of these nanoflowers, aiming to facilitate future research and promote highly effective and synergistic applications in various fields.
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Affiliation(s)
- Su Jung Lee
- Ingenium College of Liberal Arts (Chemistry), Kwangwoon University Seoul 01897 Korea
| | - Hongje Jang
- Department of Chemistry, Kwangwoon University Seoul 01897 Korea
| | - Do Nam Lee
- Ingenium College of Liberal Arts (Chemistry), Kwangwoon University Seoul 01897 Korea
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8
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Singh PP, Sinha S, Pandey G, Srivastava V. Molybdenum disulfide (MoS 2) based photoredox catalysis in chemical transformations. RSC Adv 2022; 12:29826-29839. [PMID: 36321108 PMCID: PMC9578401 DOI: 10.1039/d2ra05695j] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 10/11/2022] [Indexed: 11/15/2022] Open
Abstract
Photoredox catalysis has been explored for chemical reactions by irradiation of photoactive catalysts with visible light, under mild and environmentally benign conditions. Furthermore, this methodology permits the activation of abundant chemicals into valuable products through novel mechanisms that are otherwise inaccessible. In this context, MoS2 has drawn attention due to its excellent solar spectral response and its notable electrical, optical, mechanical and magnetic properties. MoS2 has a number of characteristic properties like tunable band gap, enhanced absorption of visible light, a layered structure, efficient photon electron conversion, good photostability, non-toxic nature and quantum confinement effects that make it an ideal photocatalyst and co-catalyst for chemical transformations. Recently, MoS2 has gained synthetic utility in chemical transformations. In this review, we will discuss MoS2 properties, structure, synthesis techniques, and photochemistry along with modifications of MoS2 to enhance its photocatalytic activity with a focus on its applications and future challenges.
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Affiliation(s)
- Praveen P Singh
- Department of Chemistry, United College of Engineering & Research Prayagraj 211002 Uttar Pradesh India
| | - Surabhi Sinha
- Department of Chemistry, United College of Engineering & Research Prayagraj 211002 Uttar Pradesh India
| | - Geetika Pandey
- Department of Physics, United University Prayagraj 211012 Uttar Pradesh India
| | - Vishal Srivastava
- Department of Chemistry, CMP Degree College, University of Allahabad Prayagraj-211002 Uttar Pradesh India
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9
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Facile Hydrothermal Synthesis of Cd Doped MoS2 Nanomaterials for Degradation of Organic Pollutants: Correlation Between Experimental and COMSOL Simulation. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02428-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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10
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Rahman A, Jennings JR, Tan AL, Khan MM. Molybdenum Disulfide-Based Nanomaterials for Visible-Light-Induced Photocatalysis. ACS OMEGA 2022; 7:22089-22110. [PMID: 35811905 PMCID: PMC9260757 DOI: 10.1021/acsomega.2c01314] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 06/08/2022] [Indexed: 05/08/2023]
Abstract
Visible-light-responsive photocatalytic materials have a multitude of important applications, ranging from energy conversion and storage to industrial waste treatment. Molybdenum disulfide (MoS2) and its variants exhibit high photocatalytic activity under irradiation by visible light as well as good stability and recyclability, which are desirable for all photocatalytic applications. MoS2-based materials have been widely applied in various fields such as wastewater treatment, environmental remediation, and organic transformation reactions because of their excellent physicochemical properties. The present review focuses on the fundamental properties of MoS2, recent developments and remaining challenges, and key strategies for tackling issues related to the utilization of MoS2 in photocatalysis. The application of MoS2-based materials in visible-light-induced catalytic reactions for the treatment of diverse kinds of pollutants including industrial, environmental, pharmaceutical, and agricultural waste are also critically discussed. The review concludes by highlighting the prospects of MoS2 for use in various established and emerging areas of photocatalysis.
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Affiliation(s)
- Ashmalina Rahman
- Chemical
Sciences, Faculty of Science, Universiti
Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
| | - James Robert Jennings
- Applied
Physics, Faculty of Science, Universiti
Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
- Optoelectronic
Device Research Group, Universiti Brunei
Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
| | - Ai Ling Tan
- Chemical
Sciences, Faculty of Science, Universiti
Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
| | - Mohammad Mansoob Khan
- Chemical
Sciences, Faculty of Science, Universiti
Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
- Optoelectronic
Device Research Group, Universiti Brunei
Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
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Tang Z, Xu L, Shu K, Yang J, Tang H. Fabrication of TiO2 @MoS2 heterostructures with improved visible light photocatalytic activity. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128686] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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12
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SnO2 nanoparticles embedded onto MoS2 nanoflakes - An efficient catalyst for photodegradation of methylene blue and photoreduction of hexavalent chromium. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140173] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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13
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Sharma P, Singh MK, Mehata MS. Sunlight-driven MoS2 nanosheets mediated degradation of dye (crystal violet) for wastewater treatment. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131651] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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14
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Singh VK, Jain P, Panda S, Kuila BK, Pitchaimuthu S, Das S. Sulfonic acid/sulfur trioxide (SO 3H/SO 3) functionalized two-dimensional MoS 2 nanosheets for high-performance photocatalysis of organic pollutants. NEW J CHEM 2022. [DOI: 10.1039/d2nj02222b] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We report the enhanced photocatalytic activity of sulfonic acid/sulfur trioxide (SO3H/SO3) functionalized two-dimensional (2D)-MoS2 (SO3H/SO3-MoS2) nanosheets synthesized using a one-pot hydrothermal method.
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Affiliation(s)
- Vivek Kumar Singh
- Department of Ceramic Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, Uttar Pradesh 221005, India
| | - Prachi Jain
- Department of Ceramic Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, Uttar Pradesh 221005, India
| | - Subrata Panda
- Department of Ceramic Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, Uttar Pradesh 221005, India
| | - Biplab Kumar Kuila
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, UP, India
| | - Sudhagar Pitchaimuthu
- Research Centre for Carbon Solutions, Institute of Mechanical, Processing and Energy Engineering, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK
| | - Santanu Das
- Department of Ceramic Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, Uttar Pradesh 221005, India
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Sindhu AS, Shinde NB, Harish S, Navaneethan M, Eswaran SK. Recoverable and reusable visible-light photocatalytic performance of CVD grown atomically thin MoS 2 films. CHEMOSPHERE 2022; 287:132347. [PMID: 34582929 DOI: 10.1016/j.chemosphere.2021.132347] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 09/07/2021] [Accepted: 09/22/2021] [Indexed: 05/14/2023]
Abstract
The decomposition of water pollutants including industrial dyes and chemicals via photocatalytic decontamination is one of the major investigated problems in recent years. Two-dimensional molybdenum disulfide (MoS2) layers have shown great promise as an efficient visible-light photocatalyst owing to its numerous active sites and large surface area. In this study, atomically thin MoS2 films of different thicknesses from monolayer to five-layer and ten layers were fabricated on sapphire substrates using chemical vapor deposition (CVD). We demonstrate that these MoS2 thin films can be used as a photocatalyst to degrade Methylene Blue (MB) dye and can be recovered completely with utmost structural and chemical stability. Under visible-light irradiation, the MB absorption peak completely disappears with ∼95.6% of degradation after 120 min. We also demonstrate the reusability of the MoS2 thin films without significantly losing the photocatalytic activity even after 5-cycles of degradation studies. The chemical and structural stability of the MoS2 films after 5-cycles of degradation studies were affirmed using various spectroscopic studies. Our findings suggest that the MB degradation efficiency increases from 19.01% to 98.46% with an increase in pH from 4 to 14. Our approach may facilitate a further design of other transition metal dichalcogenides-based recoverable photocatalysts for industrial applications.
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Affiliation(s)
- Abhishek Singh Sindhu
- 2D Materials and Devices Laboratory (2DML), Sir C. V. Raman Research Park, Department of Physics and Nanotechnology, SRM Institute of Science and Technology (SRMIST), Kattankulathur, 603203, Chennai, India
| | - Nitin Babu Shinde
- 2D Materials and Devices Laboratory (2DML), Sir C. V. Raman Research Park, Department of Physics and Nanotechnology, SRM Institute of Science and Technology (SRMIST), Kattankulathur, 603203, Chennai, India
| | - S Harish
- Functional Materials and Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology (SRMIST), Kattankulathur, 603203, Chennai, India
| | - M Navaneethan
- Functional Materials and Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology (SRMIST), Kattankulathur, 603203, Chennai, India; Nanotechnology Research Centre (NRC), SRM Institute of Science and Technology (SRMIST), Kattankulathur, 603203, Chennai, India
| | - Senthil Kumar Eswaran
- 2D Materials and Devices Laboratory (2DML), Sir C. V. Raman Research Park, Department of Physics and Nanotechnology, SRM Institute of Science and Technology (SRMIST), Kattankulathur, 603203, Chennai, India; Nanotechnology Research Centre (NRC), SRM Institute of Science and Technology (SRMIST), Kattankulathur, 603203, Chennai, India.
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Govarthanan M, Mythili R, Kim W, Alfarraj S, Alharbi SA. Facile fabrication of (2D/2D) MoS 2@MIL-88(Fe) interface-driven catalyst for efficient degradation of organic pollutants under visible light irradiation. JOURNAL OF HAZARDOUS MATERIALS 2021; 414:125522. [PMID: 33684820 DOI: 10.1016/j.jhazmat.2021.125522] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/11/2021] [Accepted: 02/22/2021] [Indexed: 06/12/2023]
Abstract
The present investigation describes the photocatalytic degradation of methylene blue (MB) and rhodamine-B (RhB) using molybdenum disulfide (MoS2) anchored metal-organic frameworks (MOFs) under visible light irradiation. Herein, MIL-88(Fe) was successfully modified with MoS2 to yield a novel heterogeneous MoS2@MIL-88(Fe) hybrid composite. The prepared catalyst enhances the superior photocatalytic activity than the pristine form of MoS2 and MIL-88(Fe) framework. The physico-chemical properties of the prepared catalyst were analytically investigated and the results exhibit greater photocatalytic efficiency towards the chosen dyes, with an optical band gap of 2.75 eV. The MoS2 and MIL-88(Fe) framework could act as efficient oxidation and reduction sites in the as-synthesized MoS2@MIL-88(Fe) composite, and generated the non-toxic by-products such as hydroxyl (•OH), and superoxide species (•O2-) for the mineralization of MB and RhB dyes. The degradation kinetics showed that the dye system followed a pseudo-first-order model which is well supported by the Langmuir-Hinshelwood mechanism. Moreover, the reusability studies showed excellent photocatalytic activity after five cycles. Finally, the photocatalytic degradation mechanism of MB and RhB dyes was suggested.
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Affiliation(s)
- M Govarthanan
- Department of Environmental Engineering, Kyungpook National University, Daegu, South Korea
| | - R Mythili
- PG & Research Department of Biotechnology, Mahendra Arts & Science College, Kalippatti, Tamil Nadu, India
| | - Woong Kim
- Department of Environmental Engineering, Kyungpook National University, Daegu, South Korea.
| | - Saleh Alfarraj
- Zoology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sulaiman Ali Alharbi
- Department of Botany and Microbiology, College of Science, King Saud University, PO Box-2455, Riyadh 11451, Saudi Arabia
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17
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Mulu M, RamaDevi D, Belachew N, Basavaiah K. Hydrothermal green synthesis of MoS 2 nanosheets for pollution abatement and antifungal applications. RSC Adv 2021; 11:24536-24542. [PMID: 35481050 PMCID: PMC9036892 DOI: 10.1039/d1ra03815j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Accepted: 07/08/2021] [Indexed: 11/21/2022] Open
Abstract
In this study, we report a green synthesis of MoS2 nanosheets (NSs) using a facile hydrothermal technique in the presence of l-cysteine. l-Cysteine can serve as a greener source of sulfur as well as a capping agent to help the growth of MoS2 nanosheets. The prepared materials were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS), electron transmission microscopy (TEM), X-ray photoelectron microscopy (XPS), and Brunauer, Emmett, and Teller (BET) analysis. The results showed that MoS2 NSs are of high crystallinity with a lattice spacing of 0.61 nm. The optical bandgap of MoS2 NSs nanosheets prepared using l-cysteine as a source of sulfur was found to be 1.79 eV. The photocatalytic degradation of MoS2 NSs towards methylene orange (MO) and rhodamine blue (RB) dyes under sunlight was found to be promising for practical applications. The fast kinetics of degradation of MO and RhB was observed over a wide range of pH range. Moreover, MoS2 NSs showed excellent antifungal activities against Trichophyton mentagrophytes and Penicillium chrysogenum fungus.
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Affiliation(s)
- Mengistu Mulu
- Department of Inorganic and Analytical Chemistry, Andhra University Visakhapatnam-530003 India
| | - Dharmasoth RamaDevi
- A.U. College of Pharmaceutical Sciences, Andhra University Visakhapatnam-530003 India
| | - Neway Belachew
- Department of Chemistry, Debre Birhan University Debre Berhan Ethiopia
| | - K Basavaiah
- Department of Inorganic and Analytical Chemistry, Andhra University Visakhapatnam-530003 India
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Dai J, Zeng S, Lv Y, Xie H, Luo L, Xu Y, Dai L. A facile strategy for tailoring polyaniline by MoS2 nanosheets to obtain excellent electrochemical properties. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138149] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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19
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Lai MTL, Lee KM, Yang TCK, Pan GT, Lai CW, Chen CY, Johan MR, Juan JC. The improved photocatalytic activity of highly expanded MoS 2 under visible light emitting diodes. NANOSCALE ADVANCES 2021; 3:1106-1120. [PMID: 36133295 PMCID: PMC9417696 DOI: 10.1039/d0na00936a] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 12/27/2020] [Indexed: 06/13/2023]
Abstract
Photocatalytic degradation is a promising method to remove organic pollutants from water. Photocatalysts based on two-dimensional (2D) transition metal dichalcogenides (TMDs) such as MoS2 nanomaterials have gained tremendous popularity. This is due to their narrow band gap and high visible light absorption. Herein, a MoS2 photocatalyst with highly expanded interlayer spaces of 1.51 nm was synthesized in the presence of Pluronic F-127 as a template by a facile one-pot hydrothermal method. This expanded MoS2 (MF-1) managed to photodegrade 98% (2.62 × 10-2 min-1) of methylene blue (MB) dye under irradiation of 1 W visible light-emitting diode (LED) white light. The dominant performance of MF-1 is attributed to the highly expanded interlayer spacing, which exposed more active edge sites. Moreover, the formation of surface defects such as surface cracks and sulfur vacancies (Sv) facilitates the adsorption capacity and in situ generation of reactive oxygen species (ROS). The dominant ROS responsible for the photodegradation of MB is superoxide radical (˙O2 -). The photocatalyst shows good recyclability without deterioration even after five consecutive cycles.
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Affiliation(s)
- Magdeline Tze Leng Lai
- Nanotechnology & Catalysis Research Centre, Institute for Advanced Studies, University of Malaya 50603 Kuala Lumpur Malaysia
| | - Kian Mun Lee
- Nanotechnology & Catalysis Research Centre, Institute for Advanced Studies, University of Malaya 50603 Kuala Lumpur Malaysia
| | - Thomas Chung Kuang Yang
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology Taipei Taiwan
| | - Guan Ting Pan
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology Taipei Taiwan
| | - Chin Wei Lai
- Nanotechnology & Catalysis Research Centre, Institute for Advanced Studies, University of Malaya 50603 Kuala Lumpur Malaysia
| | - Chia-Yun Chen
- Department of Materials Science and Engineering, National Cheng Kung University Tainan 70101 Taiwan
- Hierarchical Green-Energy Materials (Hi-GEM) Research Center, National Cheng Kung University Tainan 70101 Taiwan
| | - Mohd Rafie Johan
- Nanotechnology & Catalysis Research Centre, Institute for Advanced Studies, University of Malaya 50603 Kuala Lumpur Malaysia
| | - Joon Ching Juan
- Nanotechnology & Catalysis Research Centre, Institute for Advanced Studies, University of Malaya 50603 Kuala Lumpur Malaysia
- School of Science, Monash University Malaysia Campus, Jalan Lagoon Selatan 46150 Sunway Selangor Malaysia
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20
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Wu Z, Xue Y, Gao Z, Li Y, Zhang L, Yang X, Liu X, Chen Z. Synthesis of Ni-doped anatase TiO 2 single crystals loaded on wood-based activated carbon for enhanced photodegradation of triphenylmethane dyes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:6491-6503. [PMID: 32997247 DOI: 10.1007/s11356-020-10877-y] [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: 06/19/2020] [Accepted: 09/15/2020] [Indexed: 06/11/2023]
Abstract
In this work, the Ni-doped anatase TiO2 single crystals loaded on activated carbon (Ni-T/AC) were synthesized by a sol-gel method. The chemical compositions and physical properties of as-prepared materials were analyzed by XRD, TEM, BET, FTIR, XPS, and PL characterizations. The obtained results implied that all of samples presented anatase phase with a clear mesoporous structure. The photocatalytic properties of nanocomposites were evaluated through photodegradation of crystal violet (CV), basic fuchsine (BF), and malachite green (MG). The results revealed that the catalyst Ni-T/AC-loaded AC exhibited an excellent photocatalytic activity compared with the original TiO2, and the photodegradation efficiency for CV, BF, and MG is 99.00%, 94.85%, and 98.89% after 120 min of irradiation, respectively. This enhancement may be ascribed to the small crystallite size, large specific surface area, and pore volume of the photocatalysts. In addition, the possible degradation mechanism and pathway for triphenylmethane dyes (TPMs) were also well investigated. This work provides a new, low-cost, and effective route to improve the performance of TiO2 for effective removing TPMs.
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Affiliation(s)
- Zhansheng Wu
- School of Environmental and Chemical Engineering, Xi'an Polytechnic University, Xi'an, 710048, People's Republic of China.
- School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, 832003, People's Republic of China.
| | - Yongtao Xue
- School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, 832003, People's Republic of China
| | - Zhenzhen Gao
- School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, 832003, People's Republic of China
| | - Yunfeng Li
- School of Environmental and Chemical Engineering, Xi'an Polytechnic University, Xi'an, 710048, People's Republic of China.
| | - Luohong Zhang
- School of Environmental and Chemical Engineering, Xi'an Polytechnic University, Xi'an, 710048, People's Republic of China
| | - Xia Yang
- School of Environmental and Chemical Engineering, Xi'an Polytechnic University, Xi'an, 710048, People's Republic of China
| | - Xiaochen Liu
- School of Environmental and Chemical Engineering, Xi'an Polytechnic University, Xi'an, 710048, People's Republic of China
| | - Zengyue Chen
- School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, 832003, People's Republic of China
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21
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Kinetic and thermodynamic studies for evaluation of adsorption capacity of fungal dead biomass for direct dye. Z PHYS CHEM 2020. [DOI: 10.1515/zpch-2020-1680] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Abstract
This study focuses on evaluation of degradation aptitude of white rot fungus (Coriolus versicolor) against Indosol Turquoise FBL dye. The outcome of numerous parameters including pH, temperature, carbon sources, nitrogen sources, C/N ratio and effect of dye concentration were studied. Maximum decolorization (99.896%) of Indosol Turquoise FBL was obtained by C. versicolor under optimized conditions. After three days, the maximum dye degradation (98%) was observed at pH 4 and 30 °C. Six carbon sources fructose, glucose, maltose, sucrose, rice bran and wheat bran were used and 96.66% degradation was observed by maltose at its optimum growth concentration (0.1 g/100 mL). Various nitrogen sources were employed for decolorization but ammonium nitrate decolorized dye up to 98.05%. The activity of three different enzymes laccase, Lignin peroxidase (LiP) and Manganese peroxidase (MnP) were calculated. The dead biomass of White rot fungus (WRF) was used for biosorption experiments. Maximum q (36 mg/g) was obtained at pH 2, at 30 °C using 0.05 g biosorbent. An increase in the q value was observed with increase in dye concentration. Freundlich adsorption isotherm and pseudo second order kinetics were followed by the data. It can be concluded that C. versicolor could be an efficient source for degradation of dyes from industrial effluents.
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22
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Ain QU, Rasheed U, Yaseen M, Zhang H, Tong Z. Superior dye degradation and adsorption capability of polydopamine modified Fe 3O 4-pillared bentonite composite. JOURNAL OF HAZARDOUS MATERIALS 2020; 397:122758. [PMID: 32388090 DOI: 10.1016/j.jhazmat.2020.122758] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 04/13/2020] [Accepted: 04/15/2020] [Indexed: 05/24/2023]
Abstract
Owing to the increasing demand of environmentally benign materials for the degradation of hazardous dyes, herein we are reporting two different synthesis approaches for the fabrication of iron loaded bentonite composites by modifying and activating bentonite surface with polydopamine (PDA) followed by pillaring with Fe3+ (Fe-PDA-bentonite) and Fe3O4 (Fe3O4-PDA-bentonite). Both the composites were assessed for their adsorption and degradation performance using crystal violet (CV), Rhodamine B and Brilliant blue dyes following adopting advanced oxidation process type Fenton reaction under variable energy sources (Sunlight, UV light and Ultrasonication), concentration of H2O2 and catalyst dosage. Under UV light irradiation, the composites achieved complete degradation of the dyes within 60 min and showed degradation rate constant of 30.5E-3-81.8E-3. Textural characterizations of the composites were achieved via XRD, FTIR, TGA, XPS, SEM-EDX, TEM, N2 adsorption, VSM and UV/Vis spectrophotometry. The adsorption data of CV over the two composites fitted well with Langmuir adsorption isotherm, exhibiting the maximum adsorption capacity of 862 mg/g and 1235 mg/g for Fe-PDA-bentonite and Fe3O4-PDA-bentonite composites respectively. LCMS analysis of the post degradation products revealed that both the composites followed different degradation pathways and Fe3O4-PDA-bentonite showed superior photocatalytic performance by accomplishing complete dye degradation without leaving any degradation products. FTIR analysis of the post-degradation composites confirmed their structural stability with negligible iron leaching. This study, accredited to its cost-effectiveness, ease of operation and high efficiency, provides useful reference information for the degradation of dyes on industrial level.
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Affiliation(s)
- Qurat Ul Ain
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China; Institute of Environmental Engineering, College of Resources, Environment and Materials, Guangxi University, Nanning, 530005, China
| | - Usman Rasheed
- Institute of Applied Microbiology, College of Agriculture, Guangxi University, Nanning, 530005, China
| | - Muhammad Yaseen
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China; Institute of Chemical Sciences, University of Peshawar, 25120 KP, Pakistan.
| | - Hanbing Zhang
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China; Institute of Environmental Engineering, College of Resources, Environment and Materials, Guangxi University, Nanning, 530005, China
| | - Zhangfa Tong
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China.
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Wei Z, Zheng N, Dong X, Zhang X, Ma H, Zhang X, Xue M. Green and controllable synthesis of one-dimensional Bi 2O 3/BiOI heterojunction for highly efficient visible-light-driven photocatalytic reduction of Cr(VI). CHEMOSPHERE 2020; 257:127210. [PMID: 32502738 DOI: 10.1016/j.chemosphere.2020.127210] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 05/13/2020] [Accepted: 05/23/2020] [Indexed: 06/11/2023]
Abstract
BiOI nanosheets have been successfully deposited on the porous Bi2O3 nanorobs via a one-pot precipitation method. The physicochemical features of the as-prepared materials were characterized in detail by a series of techniques, and the results revealed that BiOI nanosheets were evenly distributed on the porous Bi2O3 nanorobs. Because of higher photogenerated electron-hole pairs separation efficiency and the larger specific surface area compared to the pristine Bi2O3 and BiOI, the 50%Bi2O3/BiOI composite exhibited significantly enhanced photocatalytic activity for Cr(VI) reduction under visible light irradiation, and the reduction rate constant was 0.02002 min-1, which was about 27.4 and 2.6 times higher than that of pure Bi2O3 (0.00073 min-1) and BiOI (0.00769 min-1), respectively. Moreover, the 50%Bi2O3/BiOI composite also possessed the excellent photochemical stability and recyclability, thereby facilitating its wastewater treatment application.
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Affiliation(s)
- Zhiping Wei
- Schoolof Light Industry and Chemical Engineering, Dalian Polytechnic University, #1 Qinggongyuan, Dalian, 116034, PR China
| | - Nan Zheng
- Schoolof Light Industry and Chemical Engineering, Dalian Polytechnic University, #1 Qinggongyuan, Dalian, 116034, PR China
| | - Xiaoli Dong
- Schoolof Light Industry and Chemical Engineering, Dalian Polytechnic University, #1 Qinggongyuan, Dalian, 116034, PR China.
| | - Xiufang Zhang
- Schoolof Light Industry and Chemical Engineering, Dalian Polytechnic University, #1 Qinggongyuan, Dalian, 116034, PR China
| | - Hongchao Ma
- Schoolof Light Industry and Chemical Engineering, Dalian Polytechnic University, #1 Qinggongyuan, Dalian, 116034, PR China
| | - Xinxin Zhang
- Schoolof Light Industry and Chemical Engineering, Dalian Polytechnic University, #1 Qinggongyuan, Dalian, 116034, PR China
| | - Mang Xue
- Schoolof Light Industry and Chemical Engineering, Dalian Polytechnic University, #1 Qinggongyuan, Dalian, 116034, PR China
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Zhang W, Wang C, Guan L, Peng M, Li K, Lin Y. A non-enzymatic electrochemical biosensor based on Au@PBA(Ni-Fe):MoS 2 nanocubes for stable and sensitive detection of hydrogen peroxide released from living cells. J Mater Chem B 2020; 7:7704-7712. [PMID: 31754682 DOI: 10.1039/c9tb02059d] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Hydrogen peroxide (H2O2) is the main product of enzymatic reactions and plays an important role in biological processes. The detection of H2O2 inside organisms or cells is critical. Here, we report a nickel-iron Prussian blue analogue nanocube doped with molybdenum disulfide and Au nanoparticles (Au@PBA(Ni-Fe):MoS2) as an electrochemical sensing material for the stable detection of H2O2 in neutral solutions for a long time. First, the Prussian blue analogue (PBA(Ni-Fe)) is synthesized by a simple charge-assembly technology, and then etched into PBA(Ni-Fe):MoS2 hollow nanocubes by a high-temperature hydrothermal reaction. Finally, Au nanoparticles are reduced inside the PBA(Ni-Fe):MoS2in situ to generate Au@PBA(Ni-Fe):MoS2 nanocubes. Ni-doping enhances the nanocube's stability in neutral solutions; as a result, the sensor can maintain a stable current response towards H2O2 reduction for more than 1 h. The sensing material can meet the needs of a long-time test. The introduction of Au enhances the electron transfer efficiency, which endows the sensor with good reduction ability for H2O2 at 0 V over a wide linear range (0.5-200 μM and 210-3000 μM) and with a low detection limit (0.23 μM (S/N = 3)), which fulfills the requirements for the detection of H2O2 in a biological system. The sensor can sense H2O2 released from cells stimulated by ascorbic acid. Au@PBA(Ni-Fe):MoS2 provides good guidance for the future development of efficient biosensors to be applied in cell biology.
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Affiliation(s)
- Wang Zhang
- Department of Chemistry, Capital Normal University, Beijing, 100048, China.
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25
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Sahoo D, Kumar B, Sinha J, Ghosh S, Roy SS, Kaviraj B. Cost effective liquid phase exfoliation of MoS 2 nanosheets and photocatalytic activity for wastewater treatment enforced by visible light. Sci Rep 2020; 10:10759. [PMID: 32612159 PMCID: PMC7330046 DOI: 10.1038/s41598-020-67683-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Accepted: 06/01/2020] [Indexed: 12/04/2022] Open
Abstract
Scalable production of high-quality MoS2 nanosheets remains challenging for industrial applications and research in basic sciences. N-methyl-2pyrrolidine (NMP) is a commonly used solvent for exfoliation of MoS2 nanosheets having further disadvantage of slow volatility rate. The present study demonstrates a cost-effective facile chemical route to synthesize few-layer MoS2 nanosheets using acetone as a solvent and by varying bulk initial concentration of samples to scale up the production in large scale to fulfill the demand for potential applications. In our study, we aim to obtain stable growth of high quality few layer MoS2 nanosheets by long sonication times. Optical absorption spectra, Raman spectra, size of nanosheets and layer thickness of as-grown MoS2 nanosheets were found to be matching with those obtained from other synthesis methods. Effective photocatalytic performance of MoS2 nanosheets without being consumed as a reactant was experimented by decomposing Methylene Blue dye in aqueous solution under irradiation of visible light. This study provides an idea to synthesize low-cost, sustainable and efficient photocatalytic material in large scale for the next generation to control water pollution quite efficiently by protecting the environment from the contamination coming from these dyes.
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Affiliation(s)
- Dhirendra Sahoo
- Department of Physics, School of Natural Sciences, Shiv Nadar University, NH91, Gautam Budh Nagar, Uttar Pradesh, Greater Noida, 201314, India
| | - Birendra Kumar
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Jaivardhan Sinha
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Kancheepuram, 603203, India
| | - Subhasis Ghosh
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Susanta Sinha Roy
- Department of Physics, School of Natural Sciences, Shiv Nadar University, NH91, Gautam Budh Nagar, Uttar Pradesh, Greater Noida, 201314, India
| | - Bhaskar Kaviraj
- Department of Physics, School of Natural Sciences, Shiv Nadar University, NH91, Gautam Budh Nagar, Uttar Pradesh, Greater Noida, 201314, India.
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Jeong RH, Lee JW, Kim DI, Yang JW, Park S, Boo JH. Black phosphorus @ molybdenum disulfide 2D nanocomposite with broad light absorption and high stability for methylene blue decomposition photocatalyst. NANOTECHNOLOGY 2020; 31:155704. [PMID: 31796654 DOI: 10.1088/1361-6528/ab5e67] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Recently, black phosphorus (BP) has become an increasingly popular two-dimensional material with application in many fields. In the field of photocatalyst, the substance is attracted by a wide spectrum and abundant constituents. BP is an attractive material with unique properties owing to its anisotropic structure, which is favorable for catalyst design as a result of bandgap change based on thickness. However, it has proved problematic in the photocatalyst field, due to rapid recombination of electrons and holes. As a result, to overcome this, we used a complex with MoS2 to prevent the recombination of electrons and holes and to have a broad range of optical absorption from visible light to NIR. MoS2 nanoflakes are a two-dimensional (2D) material of the transition metal dichalcogenide family, the advantage of which is that it can be used as a nano-junction between 2D materials. The nanocomposite material of BP and MoS2 shows a remarkable increase in photocatalytic decomposition ability of methylene blue which is an organic dye. It also has many cycles of catalytic ability, which is advantageous in terms of stability. There are expectations that MoS2 @ BP photocatalysts will be widely applied as a non-precious metal photocatalyst with broad light absorption spectra and multi-function photocatalytic materials.
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Affiliation(s)
- Rak Hyun Jeong
- Department of Chemistry, Sungkyunkwan University, 16419 Suwon, Republic of Korea. Institute of Basic Science, Sungkyunkwan University, 16419 Suwon, Republic of Korea
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Yao Z, Sun H, Sui H, Liu X. 2D/2D Heterojunction of R-scheme Ti 3C 2 MXene/MoS 2 Nanosheets for Enhanced Photocatalytic Performance. NANOSCALE RESEARCH LETTERS 2020; 15:78. [PMID: 32274602 PMCID: PMC7145887 DOI: 10.1186/s11671-020-03314-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 03/30/2020] [Indexed: 06/01/2023]
Abstract
Combination of two-dimensional (2D) materials and semiconductors is considered to be an effective way for fabricating photocatalysts for solving the environmental pollution and energy crisis. In this work, novel 2D/2D heterojunction of R-scheme Ti3C2 MXene/MoS2 nanosheets is successfully synthesized by hydrothermal reaction. The photocatalytic activity of the Ti3C2 MXene/MoS2 composites is evaluated by photocatalytic degradation and hydrogen evolution reaction. Especially, 0.5 wt% Ti3C2 MXene/MoS2 sample exhibits optimum methyl orange (MO) degradation and H2 evolution rate of 97.4% and H2 evolution rate of 380.2 μmol h-1 g-1, respectively, which is attributed to the enhanced optical absorption ability and increased specific surface area. Additionally, Ti3C2 MXene coupled with MoS2 nanosheets is favorable for improving the photocurrent response and reducing the electrochemical impedance, leading to the enhanced electron transfer of excited semiconductor and inhibition of charge recombination. This work demonstrates that Ti3C2 MXene could be a promising carrier to construct 2D/2D heterojunction in photocatalytic degradation and hydrogen evolution reaction.
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Affiliation(s)
- Ziyu Yao
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
- Advanced Ceramics Institute of Zibo New & High-Tech Industrial Development Zone, Zibo, 255000, People's Republic of China
| | - Huajun Sun
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
- Advanced Ceramics Institute of Zibo New & High-Tech Industrial Development Zone, Zibo, 255000, People's Republic of China
| | - Huiting Sui
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
- Advanced Ceramics Institute of Zibo New & High-Tech Industrial Development Zone, Zibo, 255000, People's Republic of China
| | - Xiaofang Liu
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, 430070, People's Republic of China.
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28
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Shinde DS, Bhange PD, Jha RK, Bhange DS. TiO
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Nanoparticles Decorated on BiOCl Flakes with Enhanced Visible Light Photocatalytic Activity. ChemistrySelect 2020. [DOI: 10.1002/slct.201904656] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Deepali S. Shinde
- Department of Chemistry Shivaji University Kolhapur 416004, MS India
| | - Pallavi D. Bhange
- School of Science Sanjay Ghodawat University, Atigre Kolhapur 416 118 India
| | - Ratnesh K. Jha
- Catalysis Division National Chemical Laboratory Pune 411008 India
| | - Deu S. Bhange
- Department of Chemistry Shivaji University Kolhapur 416004, MS India
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29
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Almashhori K, Ali TT, Saeed A, Alwafi R, Aly M, Al-Hazmi FE. Antibacterial and photocatalytic activities of controllable (anatase/rutile) mixed phase TiO2 nanophotocatalysts synthesized via a microwave-assisted sol–gel method. NEW J CHEM 2020. [DOI: 10.1039/c9nj03258d] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
TiO2 with different ratios of anatase/rutile phases were synthesized via a microwave assisted sol–gel method and by applying a single source precursor (SSP) with a constant concentration of nitric acid that was used as the structure directing agent.
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Affiliation(s)
- Karima Almashhori
- Department of Physics
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Tarek T. Ali
- Department of Chemistry
- Faculty of Science
- Sohag University
- Sohag
- Egypt
| | - Abdu Saeed
- Department of Physics
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Reem Alwafi
- Department of Physics
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Magda Aly
- Department of Biology
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Faten E. Al-Hazmi
- Department of Physics
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
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30
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Vinayagam R, Selvaraj R, Arivalagan P, Varadavenkatesan T. Synthesis, characterization and photocatalytic dye degradation capability of Calliandra haematocephala-mediated zinc oxide nanoflowers. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020; 203:111760. [DOI: 10.1016/j.jphotobiol.2019.111760] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/23/2019] [Accepted: 12/17/2019] [Indexed: 01/09/2023]
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31
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Field Emission Characterization of MoS 2 Nanoflowers. NANOMATERIALS 2019; 9:nano9050717. [PMID: 31075873 PMCID: PMC6566819 DOI: 10.3390/nano9050717] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 04/30/2019] [Accepted: 05/06/2019] [Indexed: 11/16/2022]
Abstract
Nanostructured materials have wide potential applicability as field emitters due to their high aspect ratio. We hydrothermally synthesized MoS2 nanoflowers on copper foil and characterized their field emission properties, by applying a tip-anode configuration in which a tungsten tip with curvature radius down to 30-100 nm has been used as the anode to measure local properties from small areas down to 1-100 µm2. We demonstrate that MoS2 nanoflowers can be competitive with other well-established field emitters. Indeed, we show that a stable field emission current can be measured with a turn-on field as low as 12 V/μm and a field enhancement factor up to 880 at 0.6 μm cathode-anode separation distance.
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