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Ribeiro TC, Fonseca DHS, Barreto RR, Pereira-Andrade E, Miquita DR, Malachias A, Magalhaes-Paniago R. Scanning Tunneling Spectroscopy Method for the Prediction of Semiconductor Heterojunction Performance as a Prequel for Device Development. ACS APPLIED MATERIALS & INTERFACES 2024; 16:1650-1658. [PMID: 38117664 DOI: 10.1021/acsami.3c11876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
The prediction of semiconductor device performance is a persistent challenge in materials science, and the ability to anticipate useful specifications prior to construction is crucial for enhancing the overall efficiency. In this study, we investigate the constituents of a solar cell by employing scanning tunneling microscopy (STM) and spectroscopy (STS). Through our observations, we identify a spatial distribution of the dopant type in thin films of materials that were designed to present major p-doping for germanium sulfide (GeS) and dominant n-doping for tin disulfide (SnS2). By generating separate STS maps for each semiconductor film and conducting a statistical analysis of the gap and doping distribution, we determine intrinsic limitations for the solar cell efficiency that must be understood prior to processing. Subsequently, we fabricate a solar cell utilizing these materials (GeS and SnS2) via vapor phase deposition and carry out a characterization using standard J-V curves under both dark/illuminated irradiance conditions. Our devices corroborate the expected reduced efficiency due to doping fluctuation but exhibit stable photocurrent responses. As originally planned, quantum efficiency measurements reveal that the peak efficiency of our solar cell coincides with the range where the standard silicon solar cells sharply decline. Our STS method is suggested as a prequel to device development in novel material junctions or deposition processes where fluctuations of doping levels are retrieved due to intrinsic material characteristics such as the occurrence of defects, roughness, local chemical segregation, and faceting or step bunching.
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Affiliation(s)
- Thiago C Ribeiro
- Departament of Physics, Federal University of Minas Gerais, Belo Horizonte, MG 30123-970, Brazil
| | - Daniel H S Fonseca
- Departament of Physics, Federal University of Minas Gerais, Belo Horizonte, MG 30123-970, Brazil
| | - Rafael Reis Barreto
- Departament of Physics, Federal University of Minas Gerais, Belo Horizonte, MG 30123-970, Brazil
| | - Everton Pereira-Andrade
- Departament of Physics, Federal University of Minas Gerais, Belo Horizonte, MG 30123-970, Brazil
| | - Douglas R Miquita
- Microscopy Center, Federal University of Minas Gerais, Belo Horizonte, MG 30123-970, Brazil
| | - Angelo Malachias
- Departament of Physics, Federal University of Minas Gerais, Belo Horizonte, MG 30123-970, Brazil
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SnS2 Nanoparticles and Thin Film for Application as an Adsorbent and Photovoltaic Buffer. NANOMATERIALS 2022; 12:nano12020282. [PMID: 35055298 PMCID: PMC8778249 DOI: 10.3390/nano12020282] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 01/10/2022] [Accepted: 01/12/2022] [Indexed: 02/01/2023]
Abstract
Energy consumption and environmental pollution are major issues faced by the world. The present study introduces a single solution using SnS2 for these two major global problems. SnS2 nanoparticles and thin films were explored as an adsorbent to remove organic toxic materials (Rhodamine B (RhB)) from water and an alternative to the toxic cadmium sulfide (CdS) buffer for thin-film solar cells, respectively. Primary characterization tools such as X-ray photoelectron spectroscopy (XPS), Raman, X-ray diffraction (XRD), and UV-Vis-NIR spectroscopy were used to analyze the SnS2 nanoparticles and thin films. At a reaction time of 180 min, 0.4 g/L of SnS2 nanoparticles showed the highest adsorption capacity of 85% for RhB (10 ppm), indicating that SnS2 is an appropriate adsorbent. The fabricated Cu(In,Ga)Se2 (CIGS) device with SnS2 as a buffer showed a conversion efficiency (~5.1%) close to that (~7.5%) of a device fabricated with the conventional CdS buffer, suggesting that SnS2 has potential as an alternative buffer.
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Oluwalana AE, Ajibade PA. Tin sulfide nanoparticles as photocatalysts for the degradation of organic dyes. J Sulphur Chem 2021. [DOI: 10.1080/17415993.2021.1979975] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Abimbola E. Oluwalana
- School of Chemistry and Physics, University of KwaZulu-Natal, Pietermaritzburg, South Africa
| | - Peter A. Ajibade
- School of Chemistry and Physics, University of KwaZulu-Natal, Pietermaritzburg, South Africa
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4
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Mondal S, Das S, Gautam UK. Defect-rich, negatively-charged SnS 2 nanosheets for efficient photocatalytic Cr(VI) reduction and organic dye adsorption in water. J Colloid Interface Sci 2021; 603:110-119. [PMID: 34186388 DOI: 10.1016/j.jcis.2021.06.092] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 05/29/2021] [Accepted: 06/14/2021] [Indexed: 11/16/2022]
Abstract
Nanostructures of layered materials have gained increasing attention in photocatalytic and water-treatment processes. Herein, we report on sub-30 nm SnS2 nanosheets (NSs) which can perform photocatalytic reduction of Cr(VI) to Cr(III) quite efficiently on one hand, while removes large quantities of toxic organic dye molecules by choosing an adsorption mode of operation over photo-degradation on the other hand, unlike most other SnS2 nanostructures. The NSs have a highly extended crystallinity growing perpendicular to the (001) lattice direction but exhibit poor X-ray diffraction for the 10 l (1 = 1,2,3…) lattice planes. With such defects, the NSs have a narrow bandgap of 2.21 eV and exhibit a significant photocurrent density at near band-edge illumination. Cr(VI) photo-reduction using the SnS2 NSs follows a first-order reaction kinetics (rate constant of 0.10 min-1), five-fold higher than commercial TiO2 (P-25). Furthermore, the NSs adsorb Rhodamine B dye molecules from an aqueous solution by forming a monolayer of dye molecules following a pseudo-second-order kinetic model and exhibit an adsorption capacity of ∼ 53.28 mg/g. We show that the NSs have a Zeta potential of ∼ -22 eV and preferably adsorb cationic dyes only. Thus the SnS2 NSs can be effective for Cr(VI) contaminated waste-water treatment in a photocatalytic manner and can also act as a potential adsorbent for polluting dye molecules either in the presence or absence of sunlight. While both these activities are known for SnS2 as well as other materials, the competitive nature of the two mechanisms while each of them is a possibility has never been investigated. Therefore, besides the high activities, the study highlights the presence of different active sites on the material surface that can respond preferentially to either inorganic or organic impurities.
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Affiliation(s)
- Sanjit Mondal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali, Sector 81, Mohali, SAS Nagar, Punjab 140306, India
| | - Sandita Das
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali, Sector 81, Mohali, SAS Nagar, Punjab 140306, India
| | - Ujjal K Gautam
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali, Sector 81, Mohali, SAS Nagar, Punjab 140306, India.
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5
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Binder-free 3D flower-like alkali doped- SnS2 electrodes for high-performance supercapacitors. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.137987] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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6
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Oreggioni D, Pérez Parada A, Aguiar I, Colazzo M, Pareja L, De León MA, Pereira HB, Pérez Barthaburu ME. Sulfur precursor and citric acid effect on SnS 2 nanoparticles and their influence on the photodegradation activity of selected organic compounds. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:18234-18245. [PMID: 33410051 DOI: 10.1007/s11356-020-11809-6] [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: 06/01/2020] [Accepted: 11/23/2020] [Indexed: 06/12/2023]
Abstract
Semiconductor nanoparticle-mediated photocatalysis is an attractive option for water decontamination, being the semiconductors as SnS2 with a bandgap in the visible region, the most promising materials. In the present work, we evaluated the influence of important parameters in the photocatalytic application of SnS2 nanoparticles. Our results show that the presence of citric acid (used as a capping agent) restricts the formation of hexagonal nanoparticles. We also demonstrated that using thioacetamide as a sulfur source results in smaller nanoparticles than thiourea, 24.0 nm and 616 nm respectively. Moreover, small hexagonal nanoparticles play a key role in the photocatalytic activity of SnS2 nanoparticles. Compared with TiO2 performance, SnS2 nanoparticles exhibited faster kinetics for methyl orange (MO) degradation, Kapp = 0.0102 min-1, and 0.029 min-1, respectively. We proved that SnS2 is capable of breaking the azo bond of methyl orange by direct reduction. Furthermore, our analyses indicate that SnS2 nanoparticles do not degrade atrazine and imazapic, but the photocatalytic route of metribuzin competed with photolysis, resulting in a particular transformation product that was not obtained with light irradiation only. We demonstrated that SnS2 nanoparticles have high bond selectivity for azo breaking. Furthermore, they represent an advance for the development of designed materials (such as heterostructures), where the properties of SnS2 can be tuned.
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Affiliation(s)
- Daniela Oreggioni
- Departamento de Desarrollo Tecnológico, Centro Universitario Regional del Este, Universidad de la República, Ruta 9 y Ruta 15, CP: 27000, Rocha, Uruguay
| | - Andrés Pérez Parada
- Departamento de Desarrollo Tecnológico, Centro Universitario Regional del Este, Universidad de la República, Ruta 9 y Ruta 15, CP: 27000, Rocha, Uruguay
| | - Ivana Aguiar
- Área de Radioquímica, Departamento Estrella Campos, Facultad de Química, Universidad de la República, General Flores 2124, CP: 11400, Montevideo, Uruguay
| | - Marcos Colazzo
- Licenciatura en Análisis Alimentario, ITR Suroeste, Universidad Tecnológica, Saladero Santa María S/N y Av. de las Américas, CP: 60000, Paysandú, Uruguay
| | - Lucía Pareja
- Departamento de Química del Litoral, Cenur Litoral Norte, Universidad de la República, Florida 1065, CP: 60000, Paysandú, Uruguay
| | - María Andrea De León
- Laboratorio de Fisicoquímica de Superficies, DETEMA, Facultad de Química, Universidad de la República General Flores 2124, CP: 11400, Montevideo, Uruguay
| | - Heinkel Bentos Pereira
- Departamento de Desarrollo Tecnológico, Centro Universitario Regional del Este, Universidad de la República, Ruta 9 y Ruta 15, CP: 27000, Rocha, Uruguay
| | - María Eugenia Pérez Barthaburu
- Departamento de Desarrollo Tecnológico, Centro Universitario Regional del Este, Universidad de la República, Ruta 9 y Ruta 15, CP: 27000, Rocha, Uruguay.
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Maibam A, Chakraborty D, Joshi K, Krishnamurty S. Exploring edge functionalised blue phosphorene nanoribbons as novel photocatalysts for water splitting. NEW J CHEM 2021. [DOI: 10.1039/d0nj03950k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
1D phosphorene nanoribbon edges activating water molecules under sunlight.
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Affiliation(s)
- Ashakiran Maibam
- Physical and Materials Chemistry Division
- National Chemical Laboratory
- Pune 411008
- India
- Academy of Scientific and Innovative Research
| | - Debalina Chakraborty
- Physical and Materials Chemistry Division
- National Chemical Laboratory
- Pune 411008
- India
| | - Krati Joshi
- Physical and Materials Chemistry Division
- National Chemical Laboratory
- Pune 411008
- India
| | - Sailaja Krishnamurty
- Physical and Materials Chemistry Division
- National Chemical Laboratory
- Pune 411008
- India
- Academy of Scientific and Innovative Research
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8
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Khabiri G, Aboraia AM, Omar S, Soliman M, Omar AMA, Kirichkov MV, Soldatov AV. The enhanced photocatalytic performance of SnS 2@MoS 2 QDs with highly-efficient charge transfer and visible light utilization for selective reduction of mythlen-blue. NANOTECHNOLOGY 2020; 31:475602. [PMID: 32615552 DOI: 10.1088/1361-6528/aba212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Molybdenum disulfide (MoS2) has recently been considered as an effective material for potential photocatalytic applications; however, its photocatalytic activity was limited due to the low density of active sites. In this work, MoS2 Quantum dots (QDs) were synthesized via the ultrasonication technique to construct heterostructure with SnS2 nanosheets (SnS2@MoS2 QDs) and the prepared materials were tested for photocatalytic applications for Methylene blue (MB). Pristine SnS2 and SnS2@MoS2 QDs nanocomposite were analyzed by XRD, TEM, PL, and Uv-Vis. Both SnS2 and SnS2@MoS2 QDs exhibited a single trigonal phase with the P-3m1 space group. The TEM analysis confirmed the coupling between the pristine SnS2 and SnS2@MoS2 QDs. The results of photocatalytic activity toward MB indicated that SnS2@MoS2 QDs material exhibits much superior photocatalytic performance compared to pristine SnS2. The excellent photodegradation performance of SnS2@MoS2 QDs is due in the main to the formation of heterojunction between SnS2 and MoS2 QDs with narrow bandgap formation, which results in a facile carriers transfer and thus high photocatalytic efficiency. A representative mechanism of the photodegradation for SnS2@MoS2 QDs photocatalyst was proposed. Such an ultrasonic technique is capable of producing small metallic particle size that can be used to construct new heterostructures for water remediation applications.
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Affiliation(s)
- Gomaa Khabiri
- Smart Materials Research Institute, Southern Federal University, Sladkova 178/24, 344090, Rostov-on-Don, Russia. Physics Department, Center for Environmental and Smart Technology (CEST), Faculty of Science, Fayoum University, Fayoum 63514, Egypt
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9
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The improvement of Triboelectric effect of ZnO Nanorods/PAN in flexible Nanogenerator by adding TiO2 nanoparticle. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02121-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Xiao X, Wang Y, Xu X, Yang T, Zhang D. Preparation of the flower-like MoS2/SnS2 heterojunction as an efficient electrocatalyst for hydrogen evolution reaction. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.110890] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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11
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Cao Z, Yin Y, Fu P, Li D, Zhou Y, Deng Y, Peng Y, Wang W, Zhou W, Tang D. TiO 2 Nanosheet Arrays with Layered SnS 2 and CoO x Nanoparticles for Efficient Photoelectrochemical Water Splitting. NANOSCALE RESEARCH LETTERS 2019; 14:342. [PMID: 31712915 PMCID: PMC6848439 DOI: 10.1186/s11671-019-3168-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 09/30/2019] [Indexed: 05/14/2023]
Abstract
Converting solar energy into sustainable hydrogen fuel by photoelectrochemical (PEC) water splitting is a promising technology to solve increasingly serious global energy supply and environmental issues. However, the PEC performance based on TiO2 nanomaterials is hindered by the limited sunlight-harvesting ability and its high recombination rate of photogenerated charge carriers. In this work, layered SnS2 absorbers and CoOx nanoparticles decorated two-dimensional (2D) TiO2 nanosheet array photoelectrode have been rationally designed and successfully synthesized, which remarkably enhanced the PEC performance for water splitting. As the result, photoconversion efficiency of TiO2/SnS2/CoOx and TiO2/SnS2 hybrid photoanodes increases by 3.6 and 2.0 times under simulated sunlight illumination, compared with the bare TiO2 nanosheet arrays photoanode. Furthermore, the TiO2/SnS2/CoOx photoanode also presented higher PEC stability owing to CoOx catalyst served as efficient water oxidation catalyst as well as an effective protectant for preventing absorber photocorrosion.
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Affiliation(s)
- Zhou Cao
- Synergetic Innovation Center for Quantum Effects and Application, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, School of Physics and Electronics, Hunan Normal University, Changsha, 410081, People's Republic of China
| | - Yanling Yin
- Synergetic Innovation Center for Quantum Effects and Application, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, School of Physics and Electronics, Hunan Normal University, Changsha, 410081, People's Republic of China
| | - Peng Fu
- Synergetic Innovation Center for Quantum Effects and Application, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, School of Physics and Electronics, Hunan Normal University, Changsha, 410081, People's Republic of China
| | - Dong Li
- Synergetic Innovation Center for Quantum Effects and Application, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, School of Physics and Electronics, Hunan Normal University, Changsha, 410081, People's Republic of China
| | - Yulan Zhou
- Synergetic Innovation Center for Quantum Effects and Application, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, School of Physics and Electronics, Hunan Normal University, Changsha, 410081, People's Republic of China
| | - Yuanwen Deng
- Synergetic Innovation Center for Quantum Effects and Application, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, School of Physics and Electronics, Hunan Normal University, Changsha, 410081, People's Republic of China
| | - Yuehua Peng
- Synergetic Innovation Center for Quantum Effects and Application, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, School of Physics and Electronics, Hunan Normal University, Changsha, 410081, People's Republic of China
| | - Weike Wang
- Synergetic Innovation Center for Quantum Effects and Application, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, School of Physics and Electronics, Hunan Normal University, Changsha, 410081, People's Republic of China
| | - Weichang Zhou
- Synergetic Innovation Center for Quantum Effects and Application, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, School of Physics and Electronics, Hunan Normal University, Changsha, 410081, People's Republic of China
| | - Dongsheng Tang
- Synergetic Innovation Center for Quantum Effects and Application, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, School of Physics and Electronics, Hunan Normal University, Changsha, 410081, People's Republic of China.
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12
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Srinivas B, Pandit MA, Muralidharan K. Importance of Clean Surfaces on the Catalyst: SnS 2 Nanorings for Environmental Remediation. ACS OMEGA 2019; 4:14970-14980. [PMID: 31552338 PMCID: PMC6751699 DOI: 10.1021/acsomega.9b01766] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 08/21/2019] [Indexed: 06/10/2023]
Abstract
The focus of the work is the synthesis of SnS2 nanomaterials with (peg-SnS2NF) and without (sf-SnS2NR) the involvement of the organic template and the comparative study of their catalytic activities. The synthesis of these materials was achieved in a single-step procedure aided by hexamethyldisilazane (HMDS). These nanoparticles were subjected to X-ray diffraction, transmission electron microscopy, scanning electron microscopy, Raman spectroscopy, and UV-vis spectroscopy analyses to investigate their structural, topographical, surface, and optical properties. The present work suggests that the surfactant-free SnS2 nanoring (sf-SnS2NR) catalyst has lower surface area compared to the poly(ethylene glycol)-stabilized SnS2 nanoflower (peg-SnS2NF) catalyst but shows high activity under visible light for the photoreduction of Cr(VI) and the photocatalytic degradation of organic dyes. The work exposed the importance of the clean surfaces on the catalyst and is expected to have a high impact on the photocatalytic activity of the SnS2 nanomaterial. The study also endorses the utility of the HMDS-assisted synthetic method for the production of multifunctional semiconductor tin disulfide nanomaterials with multiple potential applications.
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Hvid MS, Jeppesen HS, Miola M, Lamagni P, Su R, Jensen KMØ, Lock N. Structural changes during water-mediated amorphization of semiconducting two-dimensional thio-stannates. IUCRJ 2019; 6:804-814. [PMID: 31576214 PMCID: PMC6760444 DOI: 10.1107/s2052252519006791] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 05/12/2019] [Indexed: 05/31/2023]
Abstract
Owing to their combined open-framework structures and semiconducting properties, two-dimensional thio-stannates show great potential for catalytic and sensing applications. One such class of crystalline materials consists of porous polymeric [Sn3S7 2-] n sheets with molecular cations embedded in-between. The compounds are denoted R-SnS-1, where R is the cation. Dependent on the cation, some R-SnS-1 thio-stannates transition into amorphous phases upon dispersion in water. Knowledge about the fundamental chemical properties of the thio-stannates, including their water stability and the nature of the amorphous products, has not yet been established. This paper presents a time-resolved study of the transition from the crystalline to the amorphous phase of two violet-light absorbing thio-stannates, i.e. AEPz-SnS-1 [AEPz = 1-(2-amino-ethyl)-piperazine] and trenH-SnS-1 [tren = tris-(2-amino-ethyl)-amine]. X-ray total scattering data and pair distribution function analysis reveal no change in the local intralayer coordination during the amorphization. However, a rapid decrease in the crystalline domain sizes upon suspension in water is demonstrated. Although scanning electron microscopy shows no significant decrease of the micrometre-sized particles, transmission electron microscopy reveals the formation of small particles (∼200-400 nm) in addition to the larger particles. The amorphization is associated with disorder of the thio-stannate nanosheet stacking. For example, an average decrease in the interlayer distance (from 19.0 to 15.6 Å) is connected to the substantial loss of the organic components as shown by elemental analysis and X-ray photoelectron spectroscopy. Despite the structural changes, the light absorption properties of the amorphisized R-SnS-1 compounds remain intact, which is encouraging for future water-based applications of such materials.
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Affiliation(s)
- Mathias S. Hvid
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, Aarhus C DK-8000, Denmark
| | - Henrik S. Jeppesen
- Sino-Danish Center for Education and Research (SDC), Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, Aarhus C DK-8000, Denmark
| | - Matteo Miola
- Carbon Dioxide Activations Center (CADIAC), Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, Aarhus C DK-8000, Denmark
| | - Paolo Lamagni
- Carbon Dioxide Activations Center (CADIAC), Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, Aarhus C DK-8000, Denmark
| | - Ren Su
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No.1, Yanqi Economic Development Zone C#, Huairou District, Beijing 101407, People’s Republic of China
| | - Kirsten M. Ø. Jensen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, København Ø 2100, Denmark
| | - Nina Lock
- Carbon Dioxide Activations Center (CADIAC), Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, Aarhus C DK-8000, Denmark
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14
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Synthesis, characterization, antimicrobial and antioxidant study of the facile sonochemically synthesized SnS2 nanoparticles. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.nanoso.2019.100286] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Xia FF, Yang FL, Hu J, Zheng CZ, Yi HB, Sun JH. Enhanced visible light absorption performance of SnS 2 and SnSe 2 via surface charge transfer doping. RSC Adv 2018; 8:40464-40470. [PMID: 35558239 PMCID: PMC9091377 DOI: 10.1039/c8ra08834a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 11/27/2018] [Indexed: 01/26/2023] Open
Abstract
The layered two-dimensional (2D) SnS2 and SnSe2 have received intensive attention due to their sizable band gaps and potential properties. However, it has been shown that the visible light absorption of SnS2 and SnSe2 are restricted as photocatalysts and light-harvesting material absorbers for water splitting and high-performance optoelectronic devices. Herein, to enhance the visible light absorption performance of SnS2 and SnSe2, we performed a systematic investigation on tuning the electronic and optical properties of monolayers SnS2 and SnSe2 via surface charge transfer doping (SCTD) with the adsorption of molybdenum trioxide (MoO3) and potassium (K) as surface dopants based on density functional theory. Our calculations reveal that MoO3 molecules and K atoms can draw/donate electrons from/to SnS2 and SnSe2 as acceptors and donors, respectively. The adsorption of MoO3 molecules introduces a new flat impurity state in the gap of the monolayers SnS2/SnSe2, and the Fermi level moves correspondingly to the top of valence band, resulting in a p-type doping of the monolayer SnS2/SnSe2. With the adsorption of K atoms, the electrons can transfer from K atoms to the monolayer of SnS2 and SnSe2, making K an effective electron-donating dopant. Meanwhile, the bandgaps of monolayers SnS2 and SnSe2 decrease after the MoO3 and K doping, which leads to the appearance of appreciable new absorption peaks at around ∼650/480 and ∼600/680 nm, respectively, and yielding an enhanced visible light absorption of SnS2 and SnSe2. Our results unveil that SCTD is an effective way to improve the photocatalytic and light-harvesting performance of SnS2 and SnSe2, broadening their applications in splitting water and degrading environmental pollutants under sunlight irradiation.
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Affiliation(s)
- F F Xia
- School of Chemical and Environmental Engineering, Jiangsu University of Technology Changzhou 213001 Jiangsu P. R. China
| | - F L Yang
- School of Chemical and Environmental Engineering, Jiangsu University of Technology Changzhou 213001 Jiangsu P. R. China
| | - J Hu
- School of Chemical and Environmental Engineering, Jiangsu University of Technology Changzhou 213001 Jiangsu P. R. China
| | - C Z Zheng
- School of Chemical and Environmental Engineering, Jiangsu University of Technology Changzhou 213001 Jiangsu P. R. China
| | - H B Yi
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 Hunan P. R. China
| | - J H Sun
- School of Chemical and Environmental Engineering, Jiangsu University of Technology Changzhou 213001 Jiangsu P. R. China
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Yahya N, Aziz F, Jamaludin A, Aizat A, Mutalib MA, Jaafar J, Lau WJ, Yusof N, Salleh WNW, Ismail AF. Effects of the Citric Acid Addition on the Morphology, Surface Area, and Photocatalytic Activity of LaFeO3 Nanoparticles Prepared by Glucose-Based Gel Combustion Methods. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b04263] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- N. Yahya
- Advanced Membrane Technology Research Centre, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru, 81310 Johor, Malaysia
| | - F. Aziz
- Advanced Membrane Technology Research Centre, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru, 81310 Johor, Malaysia
| | - A. Jamaludin
- Advanced Membrane Technology Research Centre, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru, 81310 Johor, Malaysia
| | - A. Aizat
- Advanced Membrane Technology Research Centre, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru, 81310 Johor, Malaysia
| | - Muhazri Abd Mutalib
- Solar Energy Research Institute, Universiti Kebangsaan Malaysia, Kajang, 43600 Selangor, Malaysia
| | - J. Jaafar
- Advanced Membrane Technology Research Centre, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru, 81310 Johor, Malaysia
| | - W. J. Lau
- Advanced Membrane Technology Research Centre, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru, 81310 Johor, Malaysia
| | - N. Yusof
- Advanced Membrane Technology Research Centre, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru, 81310 Johor, Malaysia
| | - W. N. W. Salleh
- Advanced Membrane Technology Research Centre, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru, 81310 Johor, Malaysia
| | - A. F. Ismail
- Advanced Membrane Technology Research Centre, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru, 81310 Johor, Malaysia
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17
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Ritchie C, Chesman ASR, Styles M, Jasieniak JJ, Mulvaney P. Aqueous Synthesis of High-Quality Cu 2ZnSnS 4 Nanocrystals and Their Thermal Annealing Characteristics. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:1655-1665. [PMID: 29294286 DOI: 10.1021/acs.langmuir.7b03885] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Copper zinc tin sulfide (CZTS) nanocrystal inks are promising candidates for the development of cheap, efficient, scalable, and nontoxic photovoltaic (PV) devices. However, optimization of the synthetic chemistry to achieve these goals remains a key challenge. Herein we describe a single-step, aqueous-based synthesis that yields high-quality CZTS nanocrystal inks while also minimizing residual organic impurities. By exploiting simultaneous redox and crystal formation reactions, square-platelet-like CZTS nanocrystals stabilized by Sn2S64- and thiourea are produced. The CZTS synthesis is optimized by using a combination of inductively coupled plasma analysis, Raman spectroscopy, Fourier transform infrared spectroscopy, and synchrotron powder X-ray diffraction to assess the versatility of the synthesis and identify suitable composition ranges for achieving phase-pure CZTS. It is found that mild heat treatment between 185 and 220 °C is most suitable for achieving this because this temperature range is sufficiently high to thermalize existing ligands and ink additives while minimizing tin loss, which is problematic at higher temperatures. The low temperatures required to process these nanocrystal inks to give CZTS thin films are readily amenable to production-scale processes.
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Affiliation(s)
- Cameron Ritchie
- ARC Centre of Excellence in Exciton Science, School of Chemistry and Bio21 Institute, University of Melbourne , 30 Flemington Road, Parkville, Victoria 3010, Australia
- ARC Centre of Excellence in Exciton Science, Materials Science and Engineering, and Energy Materials & Systems Institute, Monash University , 20 Research Way, Clayton, Victoria 3800, Australia
| | - Anthony S R Chesman
- CSIRO Manufacturing, Ian Wark Laboratories, Bayview Avenue, Clayton, Victoria 3168, Australia
| | - Mark Styles
- CSIRO Manufacturing, Ian Wark Laboratories, Bayview Avenue, Clayton, Victoria 3168, Australia
| | - Jacek J Jasieniak
- ARC Centre of Excellence in Exciton Science, Materials Science and Engineering, and Energy Materials & Systems Institute, Monash University , 20 Research Way, Clayton, Victoria 3800, Australia
| | - Paul Mulvaney
- ARC Centre of Excellence in Exciton Science, School of Chemistry and Bio21 Institute, University of Melbourne , 30 Flemington Road, Parkville, Victoria 3010, Australia
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18
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Wang S, Yang B, Liu Y. Synthesis of a hierarchical SnS2 nanostructure for efficient adsorption of Rhodamine B dye. J Colloid Interface Sci 2017; 507:225-233. [DOI: 10.1016/j.jcis.2017.07.053] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 07/10/2017] [Accepted: 07/16/2017] [Indexed: 01/21/2023]
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19
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Huang E, Yao X, Wang W, Wu G, Guan N, Li L. SnS2Nanoplates with Specific Facets Exposed for Enhanced Visible-Light-Driven Photocatalysis. CHEMPHOTOCHEM 2016. [DOI: 10.1002/cptc.201600026] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Erwei Huang
- School of Materials Science and Engineering and National Institute for Advanced Materials; Nankai University; Tianjin 300350 China
| | - Xiaolong Yao
- College of Electronic Information and Optical Engineering; Nankai University; Tianjin 300350 China
| | - Weichao Wang
- College of Electronic Information and Optical Engineering; Nankai University; Tianjin 300350 China
| | - Guangjun Wu
- School of Materials Science and Engineering and National Institute for Advanced Materials; Nankai University; Tianjin 300350 China
| | - Naijia Guan
- School of Materials Science and Engineering and National Institute for Advanced Materials; Nankai University; Tianjin 300350 China
- Key Laboratory of Advanced Energy Materials Chemistry of the Ministry of Education and Collaborative Innovation Center of Chemical Science and Engineering; Nankai University; Tianjin 300071 China
| | - Landong Li
- School of Materials Science and Engineering and National Institute for Advanced Materials; Nankai University; Tianjin 300350 China
- Key Laboratory of Advanced Energy Materials Chemistry of the Ministry of Education and Collaborative Innovation Center of Chemical Science and Engineering; Nankai University; Tianjin 300071 China
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20
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Luo B, Liu G, Wang L. Recent advances in 2D materials for photocatalysis. NANOSCALE 2016; 8:6904-20. [PMID: 26961514 DOI: 10.1039/c6nr00546b] [Citation(s) in RCA: 287] [Impact Index Per Article: 35.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Two-dimensional (2D) materials have attracted increasing attention for photocatalytic applications because of their unique thickness dependent physical and chemical properties. This review gives a brief overview of the recent developments concerning the chemical synthesis and structural design of 2D materials at the nanoscale and their applications in photocatalytic areas. In particular, recent progress on the emerging strategies for tailoring 2D material-based photocatalysts to improve their photo-activity including elemental doping, heterostructure design and functional architecture assembly is discussed.
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Affiliation(s)
- Bin Luo
- Nanomaterials Centre, School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia QLD 4072, Australia.
| | - Gang Liu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China.
| | - Lianzhou Wang
- Nanomaterials Centre, School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia QLD 4072, Australia.
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21
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Luo J, Zhou X, Zhang J, Du Z. Fabrication and characterization of Ag2CO3/SnS2 composites with enhanced visible-light photocatalytic activity for the degradation of organic pollutants. RSC Adv 2015. [DOI: 10.1039/c5ra18262j] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The efficient charge transfer at the interfaces of the Ag2CO3/SnS2 composite due to the inner established electric field (E), which effectively facilitated interfacial charge transfer and improved photogenerated electron–hole pairs separation.
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Affiliation(s)
- Jin Luo
- School of Chemistry and Chemical Engineering
- Institute of Physical Chemistry
- and Development Center for New Materials Engineering & Technology in Universities of Guangdong
- Lingnan Normal University
- Zhanjiang 524048
| | - Xiaosong Zhou
- School of Chemistry and Chemical Engineering
- Institute of Physical Chemistry
- and Development Center for New Materials Engineering & Technology in Universities of Guangdong
- Lingnan Normal University
- Zhanjiang 524048
| | - Jinquan Zhang
- School of Chemistry and Chemical Engineering
- Institute of Physical Chemistry
- and Development Center for New Materials Engineering & Technology in Universities of Guangdong
- Lingnan Normal University
- Zhanjiang 524048
| | - Zhihua Du
- School of Chemistry and Chemical Engineering
- Institute of Physical Chemistry
- and Development Center for New Materials Engineering & Technology in Universities of Guangdong
- Lingnan Normal University
- Zhanjiang 524048
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