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Nasiri F, Fotouhi L, Shahrokhian S, Zirak M. Cobalt sulfide flower-like derived from metal organic frameworks on nickel foam as an electrode for fabrication of asymmetric supercapacitors. Sci Rep 2024; 14:6045. [PMID: 38472427 DOI: 10.1038/s41598-024-56689-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 03/09/2024] [Indexed: 03/14/2024] Open
Abstract
Metal-organic frameworks, as a kind of advanced nanoporous materials with metal centers and organic linkers, have been applied as promising electrode materials in energy storage devices. In this study, we are successfully prepared cobalt sulfide nanosheets (CoS) derived from the metal-organic framework on nickel foam (NF). The prepared electrodes are characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, energy-dispersive X-ray spectroscopy, Brunauer-Emmett-Teller and Barrett-Joyner-Halenda and electrochemical methods like voltammetry, galvanostatic charge-discharge curve and electrochemical impedance spectroscopy. The CoS/NF electrode demonstrates a high specific capacity of 377.5 mA h g-1 (1359 C g-1) at the current density of 2 A g-1, considerable rate performance and excellent durability (89.4% after 4000 cycles). A hybrid supercapacitor is assembled using CoS/NF as the positive electrode and activated carbon as the negative electrode, it shows a high energy density of 57.4 W h kg-1 at a power density of 405.2 W kg-1. The electrochemical results suggest that the CoS nanosheet arrays would possess excellent potential for applications in energy storage devices.
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Affiliation(s)
- Farzaneh Nasiri
- Department of Analytical Chemistry, Faculty of Chemistry, Alzahra University, Tehran, Iran
| | - Lida Fotouhi
- Department of Analytical Chemistry, Faculty of Chemistry, Alzahra University, Tehran, Iran.
- Analytical and Bioanalytical Research Centre (ABRC), Alzahra University, Tehran, Iran.
| | - Saeed Shahrokhian
- Department of Chemistry, Sharif University of Technology, 11155-9516, Tehran, Iran
| | - Mohammad Zirak
- Department of Physics, Hakim Sabzevari University, P. O. Box 961797647, Sabzevar, Iran
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2
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Koshki MS, Zirak M, Kazemi M, Alehdaghi H, Baghayeri M, Nodehi M, Rabiee N. Molybdenum-doped BiVO 4 thin films: Facile preparation via hot-spin coating method and the relationship between surface statistical parameters and photoelectrochemical activity. Chemosphere 2024; 346:140579. [PMID: 38303391 DOI: 10.1016/j.chemosphere.2023.140579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 10/13/2023] [Accepted: 10/26/2023] [Indexed: 02/03/2024]
Abstract
Molybdenum-doped BiVO4 thin films were uniformly coated on indium-doped tin oxide (ITO) substrates via a facile modified hot spin coating (HSC) technique. The prepared layers were used as photoanode in a photoelectrochemical (PEC) cell. Different percentage of Mo dopant was examined to maximize the photo-current density (J) of the layers. The highest J value (872 ± 8 μA/cm2) was obtained by 5 atomic% of Mo doping. After that, the surface topographies of these samples were changed by varying the initial precursor concentration from 27 to 80 mM. The relation between surface topographies and the PEC activity of Mo-doped BiVO4 thin films was investigated from microscopic point of view by calculating the surface roughness exponent of α, and a mechanism for the PEC activity of Mo-doped BiVO4 photoanodes was proposed accordingly. The sample with a small roughness exponent provided a surface with jagged microscopic fluctuations which may trap the air molecules between the electrolyte and sample surface, hindering the fine atomic interaction for photo-generated electron-hole transition. Therefore, the layer with the highest roughness exponent (2α = 0.48 ± 0.03), which means the smoother microscopic surface and better interfacial contact with the electrolyte, exhibited the best PEC activity.
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Affiliation(s)
- Mina-Sadat Koshki
- Department of Chemistry, Faculty of Science, Hakim Sabzevari University, P. O. Box 397, Sabzevar, Iran
| | - Mohammad Zirak
- Department of Physics, Faculty of Science, Hakim Sabzevari University, P. O. Box 397, Sabzevar, Iran.
| | - Maziyar Kazemi
- Department of Physics, Faculty of Science, Hakim Sabzevari University, P. O. Box 397, Sabzevar, Iran
| | - Hassan Alehdaghi
- Department of Physics, Faculty of Science, Hakim Sabzevari University, P. O. Box 397, Sabzevar, Iran
| | - Mehdi Baghayeri
- Department of Chemistry, Faculty of Science, Hakim Sabzevari University, P. O. Box 397, Sabzevar, Iran; Department of Natural Sciences, Lebanese American University, Beirut, Lebanon
| | - Marzieh Nodehi
- Department of Chemistry, Faculty of Science, Hakim Sabzevari University, P. O. Box 397, Sabzevar, Iran
| | - Navid Rabiee
- School of Engineering, Macquarie University, Sydney, NSW, 2109, Australia.
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3
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Zamanzadeh V, Valizadeh L, Zirak M, Rahmani A. Taking an obscure path, a common concern during returning to work after cancer. JVR 2019. [DOI: 10.3233/jvr-191052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Vahid Zamanzadeh
- Department of Medical Surgical Nursing, School of Nursing and Midwifery, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Leila Valizadeh
- Department of Pediatric Nursing, School of Nursing and Midwifery, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Zirak
- Student Research Committee, School of Nursing and Midwifery, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Azad Rahmani
- Department of Medical Surgical Nursing, School of Nursing and Midwifery, Tabriz University of Medical Sciences, Tabriz, Iran
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Samadi M, Zirak M, Naseri A, Kheirabadi M, Ebrahimi M, Moshfegh AZ. Design and tailoring of one-dimensional ZnO nanomaterials for photocatalytic degradation of organic dyes: a review. Res Chem Intermed 2019. [DOI: 10.1007/s11164-018-03729-5] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Zirak M, Oveisi H, Lin J, Bando Y, Alshehri AA, Kim J, Ide Y, Hossain MSA, Malgras V, Yamauchi Y. Synthesis of CdS/ZnO Hybrid Nanoarchitectured Films with Visible Photocatalytic Activity. BCSJ 2018. [DOI: 10.1246/bcsj.20180108] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Mohammad Zirak
- Department of Materials and Polymer Engineering, Hakim Sabzevari University, Sabzevar 9617976487, Iran
| | - Hamid Oveisi
- Department of Materials and Polymer Engineering, Hakim Sabzevari University, Sabzevar 9617976487, Iran
| | - Jianjian Lin
- Key Laboratory of Sensor Analysis of Tumor Marker (Ministry of Education), Shandong Key Laboratory of Biochemical Analysis, and Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology (QUST), Qingdao 266042, P. R. China
| | - Yoshio Bando
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Australian Institute for Innovative Materials (AIIM), University of Wollongong, North Wollongong, NSW 2500, Australia
| | | | - Jeonghun Kim
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072, Australia
| | - Yusuke Ide
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Md. Shahriar A. Hossain
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072, Australia
- School of Mechanical and Mining Engineering, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Victor Malgras
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Yusuke Yamauchi
- Key Laboratory of Sensor Analysis of Tumor Marker (Ministry of Education), Shandong Key Laboratory of Biochemical Analysis, and Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology (QUST), Qingdao 266042, P. R. China
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072, Australia
- School of Chemical Engineering, The University of Queensland, Brisbane, QLD 4072, Australia
- Department of Plant and Environmental New Resources, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 446-701, South Korea
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Zamanzadeh V, Valizadeh L, Rahmani A, Zirak M, Desiron H. Cancer survivors' experiences of return to work: A qualitative study. Psychooncology 2018; 27:2398-2404. [DOI: 10.1002/pon.4840] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 07/08/2018] [Accepted: 07/13/2018] [Indexed: 01/22/2023]
Affiliation(s)
- Vahid Zamanzadeh
- Department of Medical Surgical Nursing, School of Nursing and Midwifery; Tabriz University of Medical Sciences; Tabriz Iran
| | - Leila Valizadeh
- Department of Pediatric Nursing, School of Nursing and Midwifery; Tabriz University of Medical Sciences; Tabriz Iran
| | - Azad Rahmani
- Department of Medical Surgical Nursing, School of Nursing and Midwifery; Tabriz University of Medical Sciences; Tabriz Iran
| | - Mohammad Zirak
- School of Nursing and Midwifery; Tabriz University of Medical Sciences; Tabriz Iran
| | - Huget Desiron
- Occupational Therapy Education, Department of Health Care; University College of Hasselt PXL; Hasselt Belgium
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Samadi M, Sarikhani N, Zirak M, Zhang H, Zhang HL, Moshfegh AZ. Group 6 transition metal dichalcogenide nanomaterials: synthesis, applications and future perspectives. Nanoscale Horiz 2018; 3:90-204. [PMID: 32254071 DOI: 10.1039/c7nh00137a] [Citation(s) in RCA: 116] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Group 6 transition metal dichalcogenides (G6-TMDs), most notably MoS2, MoSe2, MoTe2, WS2 and WSe2, constitute an important class of materials with a layered crystal structure. Various types of G6-TMD nanomaterials, such as nanosheets, nanotubes and quantum dot nano-objects and flower-like nanostructures, have been synthesized. High thermodynamic stability under ambient conditions, even in atomically thin form, made nanosheets of these inorganic semiconductors a valuable asset in the existing library of two-dimensional (2D) materials, along with the well-known semimetallic graphene and insulating hexagonal boron nitride. G6-TMDs generally possess an appropriate bandgap (1-2 eV) which is tunable by size and dimensionality and changes from indirect to direct in monolayer nanosheets, intriguing for (opto)electronic, sensing, and solar energy harvesting applications. Moreover, rich intercalation chemistry and abundance of catalytically active edge sites make them promising for fabrication of novel energy storage devices and advanced catalysts. In this review, we provide an overview on all aspects of the basic science, physicochemical properties and characterization techniques as well as all existing production methods and applications of G6-TMD nanomaterials in a comprehensive yet concise treatment. Particular emphasis is placed on establishing a linkage between the features of production methods and the specific needs of rapidly growing applications of G6-TMDs to develop a production-application selection guide. Based on this selection guide, a framework is suggested for future research on how to bridge existing knowledge gaps and improve current production methods towards technological application of G6-TMD nanomaterials.
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Affiliation(s)
- Morasae Samadi
- Department of Physics, Sharif University of Technology, Tehran 11155-9161, Iran.
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Zamanzadeh V, Zirak M, Hemmati Maslakpak M, Parizad N. Distance education and diabetes empowerment: A single-blind randomized control trial. Diabetes Metab Syndr 2017; 11 Suppl 1:S247-S251. [PMID: 28034693 DOI: 10.1016/j.dsx.2016.12.039] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 12/16/2016] [Indexed: 11/27/2022]
Abstract
AIMS Diabetes is one of the biggest problems in healthcare systems and kills many people every year. Diabetes management is impossible when only utilizing medication. So, patients must be educated to manage their diabetes. This study aims to assess the effect of education by telephone and short message service on empowering patients with type 2 diabetes (primary outcome). MATERIALS AND METHODS A single-blind randomized controlled trial was conducted in the Urmia diabetes association in Iran. Sixty six participants with definitive diagnosis of type 2 diabetes entered into the study. Patients with secondary health problems were excluded. Patients were selected by simple random sampling then allocated into intervention (n=33) and control (n=33) groups. The intervention group received an educational text message daily and instructive phone calls three days a week for three months along with usual care. The Diabetes Empowerment Scale (DES) with confirmed validity and reliability was used for collecting data. Data was analyzed using SPSS V6.1. Independent t-test, paired t-test and chi-square were used to analyze the data. RESULTS The empowerment of the intervention group compared with the control group significantly improved after three months of distance education (p<0.00, EF=1. 16). CONCLUSIONS The study findings show that the distance education has a significant effect on empowering patients with type 2 diabetes. Therefore, using distance education along with other diabetes management intervention is highly effective and should be part of the care in diabetes treatment.
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Affiliation(s)
- Vahid Zamanzadeh
- Department of Nursing, Faculty of Nursing and Midwifery, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Zirak
- Department of Nursing, Faculty of Nursing and Midwifery, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Masomeh Hemmati Maslakpak
- Department of Medical Surgical Nursing, Maternal and Childhood Obesity Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Naser Parizad
- Department of Nursing, Faculty of Nursing and Midwifery, Tabriz University of Medical Sciences, Tabriz, Iran.
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9
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Zirak M, Ghafourifard M, Aliafsari Mamaghani E. Patients' Dignity and Its Relationship with Contextual Variables: A Cross-Sectional Study. J Caring Sci 2017; 6:49-51. [PMID: 28299297 PMCID: PMC5348662 DOI: 10.15171/jcs.2017.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Accepted: 08/07/2016] [Indexed: 11/20/2022] Open
Abstract
Introduction: Dignity is considered as fundamental human
needs and recognized as one of the central concepts in nursing science. The aim of this
study was to assess the extent to which patients’ dignity is respected and to evalutae its
relationship with contextual variables. Methods: This cross-sectional study was conducted on 256
hospitalized patients in the two teaching hospitals affiliated to Zanjan University of
medical sciences, Iran. Data were collected by a questionnaire consist of two sections:
(a) demographic characteristics, and (b) patient dignity including 32 questions. Data were
analyzed by SPSS (ver.13) software using independent t-test, ANOVA and Pearson
correlation. Results: The result showed that the mean (standard
deviation) of total score of patient’s dignity was 108.17 (25.28). According to the
result, the majority of the respondents (76.2%) were not aware of patient’s rights. There
was a significant difference in mean scores of total dignity between single and married
persons, living in city or village, and hospitalization in Moosavi and Valiasr hospital. Conclusion: Health care systems should take the provision
of the patients' dignity into account through using a comprehensive educational program
for informing of patient, family members, and health professionals about patients’
dignity.
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Affiliation(s)
- Mohammad Zirak
- Department of Medical Surgical Nursing, Student Research Committee, Faculty of Nursing and Midwifery, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mansour Ghafourifard
- Department of Medical Surgical Nursing, Student Research Committee, Faculty of Nursing and Midwifery, Tabriz University of Medical Sciences, Tabriz, Iran
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10
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Zirak M, Ebrahimi M, Zhao M, Moradlou O, Samadi M, Bayat A, Zhang HL, Moshfegh AZ. Fabrication and surface stochastic analysis of enhanced photoelectrochemical activity of a tuneable MoS2–CdS thin film heterojunction. RSC Adv 2016. [DOI: 10.1039/c5ra26487a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
CdS/MoS2(t)/ITO thin films were prepared via a facile method with controllable surface properties, and a model was proposed to describe the enhancement of photoelectrochemical activity from a stochastic view point.
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Affiliation(s)
- M. Zirak
- Department of Physics
- Sharif University of Technology
- Tehran
- Iran
| | - M. Ebrahimi
- Department of Physics
- Sharif University of Technology
- Tehran
- Iran
| | - M. Zhao
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - O. Moradlou
- Department of Chemistry
- Alzahra University
- Tehran
- Iran
| | - M. Samadi
- Department of Physics
- Sharif University of Technology
- Tehran
- Iran
| | - A. Bayat
- Department of Physics
- Sharif University of Technology
- Tehran
- Iran
| | - H.-L. Zhang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - A. Z. Moshfegh
- Department of Physics
- Sharif University of Technology
- Tehran
- Iran
- Institute of Nanoscience and Nanotechnology
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11
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Ghafourifard M, Zirak M, Broojerdi MH, Bayendor A, Moradi A. The Effect of Ringer versus Haemaccel Preload on Incidence of Postoperative Nausea and Vomiting. J Caring Sci 2015; 4:105-13. [PMID: 26161365 DOI: 10.15171/jcs.2015.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 04/10/2015] [Indexed: 02/03/2023] Open
Abstract
INTRODUCTION Postoperative nausea and vomiting (PONV) is the most common and unpleasant postoperative complication. There is much controversy on preoperative fluid therapy. The aim of this study was to examine the effect of crystalloid fluid (Ringer solution) versus colloid (Haemaccel solution) on the incidence of postoperative nausea and vomiting in patients receiving spinal anesthesia. METHODS In this double-blinded clinical trial, 46 patients were selected according to the inclusion and exclusion criteria. Patients were randomly allocated to one of two groups. The crystalloid group received Ringer solution at a volume of 7 ml/kg and colloid group received 7ml/kg of 3% Modified Gelatin (Haemaccel) as a preoperative intravenous bolus. We used a Verbal Rating Scale (VRS) for assessing the nausea and vomiting occurrence. Data were analyzed using SPSS software ver.13 and χ(2) test and independent t-test. RESULTS The result showed that the incidence of PONV was less frequent in both Ringer and Haemaccel groups, but the incidence of vomiting and the intensity of nausea was not significantly different in any time point after anesthesia. CONCLUSION We conclude that preoperative fluid administration decreases the incidence of PONV, and both Crystalloids (Ringer) and colloids (haemaccel) solution were found to be equivalent in prevention of PONV. Therefore using of either Ringer or haemaccel solution is recommended for prevention of PONV.
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Affiliation(s)
- Mansour Ghafourifard
- Department of Nursing, Nursing and Midwifery Faculty, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Zirak
- Department of Nursing, Nursing and Midwifery Faculty, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Ali Bayendor
- Department of Nursing, Nursing and Midwifery Faculty, Zanjan University of Medical Sciences, Zanj
| | - Abolfaz Moradi
- Department of Nursing, Nursing and Midwifery Faculty, Zanjan University of Medical Sciences, Zanj
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12
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Faraji M, Sabzali M, Yousefzadeh S, Sarikhani N, Ziashahabi A, Zirak M, Moshfegh AZ. Band engineering and charge separation in the Mo1−xWxS2/TiO2heterostructure by alloying: first principle prediction. RSC Adv 2015. [DOI: 10.1039/c5ra00330j] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The composition dependent electronic properties of the Mo1−xWxS2monolayer deposited over a TiO2(110) substrate were investigated based onab initiodensity functional calculations by applying periodic boundary conditions.
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Affiliation(s)
- M. Faraji
- Department of Physics
- Sharif University of Technology
- Tehran
- Iran
| | - M. Sabzali
- Department of Physics
- Sharif University of Technology
- Tehran
- Iran
| | - S. Yousefzadeh
- Department of Physics
- Sharif University of Technology
- Tehran
- Iran
| | - N. Sarikhani
- School of Mechanical Engineering
- Sharif University of Technology
- Tehran
- Iran
| | - A. Ziashahabi
- Department of Physics
- Sharif University of Technology
- Tehran
- Iran
| | - M. Zirak
- Department of Physics
- Sharif University of Technology
- Tehran
- Iran
| | - A. Z. Moshfegh
- Department of Physics
- Sharif University of Technology
- Tehran
- Iran
- Institute for Nanoscience and Nanotechnology
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13
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Zhao M, Chang MJ, Wang Q, Zhu ZT, Zhai XP, Zirak M, Moshfegh AZ, Song YL, Zhang HL. Unexpected optical limiting properties from MoS2 nanosheets modified by a semiconductive polymer. Chem Commun (Camb) 2015; 51:12262-5. [DOI: 10.1039/c5cc01819f] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have developed a facile method for exfoliation of MoS2 with the assistance of P3HT to synthetize a P3HT–MoS2 nanohybrid which shows unexpected optical limiting properties compared with the individual compartments.
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Affiliation(s)
- Min Zhao
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Special Function Materials and Structure Design (MOE)
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
| | - Meng-Jie Chang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Special Function Materials and Structure Design (MOE)
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
| | - Qiang Wang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Special Function Materials and Structure Design (MOE)
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
| | - Zhen-Tong Zhu
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Special Function Materials and Structure Design (MOE)
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
| | - Xin-Ping Zhai
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Special Function Materials and Structure Design (MOE)
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
| | - Mohammad Zirak
- Department of Physics
- Instit. for Nanosci. and Nanotechnol
- Sharif University of Technology
- Tehran
- Iran
| | - Alireza Z. Moshfegh
- Department of Physics
- Instit. for Nanosci. and Nanotechnol
- Sharif University of Technology
- Tehran
- Iran
| | - Ying-Lin Song
- School of Physical Science and Technology
- Soochow University
- Suzhou 215006
- P. R. China
| | - Hao-Li Zhang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Special Function Materials and Structure Design (MOE)
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
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14
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Anvari M, Aghamohammadi C, Dashti-Naserabadi H, Salehi E, Behjat E, Qorbani M, Nezhad MK, Zirak M, Hadjihosseini A, Peinke J, Tabar MRR. Stochastic nature of series of waiting times. Phys Rev E Stat Nonlin Soft Matter Phys 2013; 87:062139. [PMID: 23848659 DOI: 10.1103/physreve.87.062139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Revised: 04/10/2013] [Indexed: 06/02/2023]
Abstract
Although fluctuations in the waiting time series have been studied for a long time, some important issues such as its long-range memory and its stochastic features in the presence of nonstationarity have so far remained unstudied. Here we find that the "waiting times" series for a given increment level have long-range correlations with Hurst exponents belonging to the interval 1/2<H<1. We also study positive-negative level asymmetry of the waiting time distribution. We find that the logarithmic difference of waiting times series has a short-range correlation, and then we study its stochastic nature using the Markovian method and determine the corresponding Kramers-Moyal coefficients. As an example, we analyze the velocity fluctuations in high Reynolds number turbulence and determine the level dependence of Markov time scales, as well as the drift and diffusion coefficients. We show that the waiting time distributions exhibit power law tails, and we were able to model the distribution with a continuous time random walk.
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Affiliation(s)
- Mehrnaz Anvari
- Department of Physics, Sharif University of Technology, 11365-9161 Tehran, Iran
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15
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Rahmani A, Mohammadian R, Ferguson C, Golizadeh L, Zirak M, Chavoshi H. Posttraumatic growth in Iranian cancer patients. Indian J Cancer 2012; 49:287-92. [DOI: 10.4103/0019-509x.104489] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Shahrisa A, Zirak M, Mehdipour AR, Miri R. Synthesis and calcium channel antagonist activity of new symmetrical and asymmetrical 4-[2-chloro-2-(4-chloro-6-methyl-2-oxo-2H-pyran-3-yl)vinyl]-substituted 1,4-dihydropyridines. Chem Heterocycl Compd (N Y) 2011. [DOI: 10.1007/s10593-011-0672-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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