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Brasiunas B, Popov A, Lisyte V, Kausaite-Minkstimiene A, Ramanaviciene A. ZnO nanostructures: A promising frontier in immunosensor development. Biosens Bioelectron 2024; 246:115848. [PMID: 38042053 DOI: 10.1016/j.bios.2023.115848] [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: 08/01/2023] [Revised: 11/01/2023] [Accepted: 11/15/2023] [Indexed: 12/04/2023]
Abstract
This review addresses the design of immunosensors, which employ ZnO nanostructures. Various methods of modifying ZnO nanostructures with antibodies or antigens are discussed, including covalent and non-covalent approaches and cross-linking techniques. Immunosensors based on different properties of ZnO nanomaterials are described and compared. This article provides a comprehensive review of electrochemical immunosensors based on ZnO nanostructures and various detection techniques, including cyclic voltammetry (CV), differential pulse voltammetry (DPV), photoelectrochemical (PEC) detection, electrochemical impedance spectroscopy (EIS), and other electrochemical methods. In addition, this review article examines the application of optical detection techniques, including photoluminescence (PL) and electrochemiluminescence (ECL), in the development of immunosensors based on ZnO nanostructures.
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Affiliation(s)
- Benediktas Brasiunas
- NanoTechnas - Nanotechnology and Materials Science Center, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko St. 24, LT 03225, Vilnius, Lithuania
| | - Anton Popov
- NanoTechnas - Nanotechnology and Materials Science Center, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko St. 24, LT 03225, Vilnius, Lithuania
| | - Viktorija Lisyte
- NanoTechnas - Nanotechnology and Materials Science Center, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko St. 24, LT 03225, Vilnius, Lithuania
| | - Asta Kausaite-Minkstimiene
- NanoTechnas - Nanotechnology and Materials Science Center, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko St. 24, LT 03225, Vilnius, Lithuania
| | - Almira Ramanaviciene
- NanoTechnas - Nanotechnology and Materials Science Center, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko St. 24, LT 03225, Vilnius, Lithuania.
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Liang S, Sui G, Guo D, Luo Z, Xu R, Yao H, Li J, Wang C. g-C 3N 4-wrapped nickel doped zinc oxide/carbon core-double shell microspheres for high-performance photocatalytic hydrogen production. J Colloid Interface Sci 2023; 635:83-93. [PMID: 36580695 DOI: 10.1016/j.jcis.2022.12.120] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/19/2022] [Accepted: 12/21/2022] [Indexed: 12/24/2022]
Abstract
The development of efficient heterojunctions with enhanced photocatalytic properties is considered a promising approach for photocatalytic hydrogen production. In this study, graphitic carbon nitride (g-C3N4)-wrapped nickel-doped zinc oxide/carbon (Ni-ZnO@C/g-C3N4) core-double shell heterojunctions with unique core-double shell structures were employed as efficient photocatalysts through an innovative approach. Ni doping can enhance the intensity and range of visible light absorption in ZnO, and the carbon core coupled with the hollow double-shell structure can accelerate the charge transfer rate and improve the photon utilization efficiency. Meanwhile, the construction of the Z-scheme heterojunction extended the electron-hole pair transport path. In addition, the Z-scheme charge-transfer mechanism of Ni-ZnO@C/g-C3N4 under simulated sunlight was verified by photoluminescence (PL) and electron spin resonance (ESR) experiments. As a result, the obtained photocatalyst acquired a high hydrogen evolution rate of 336.08 μmol g-1h-1, which is 36.49 times higher than that of pristine ZnO. Overall, this work may provide a pathway for the construction of highly efficient photocatalysts with unique core-double shell structures.
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Affiliation(s)
- Shuang Liang
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China
| | - Guozhe Sui
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China; Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals, Qiqihar University, Qiqihar 161006, PR China.
| | - Dongxuan Guo
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China; Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals, Qiqihar University, Qiqihar 161006, PR China.
| | - Ze Luo
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China
| | - Rongping Xu
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China
| | - Hong Yao
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China
| | - Jinlong Li
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China; Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals, Qiqihar University, Qiqihar 161006, PR China.
| | - Chao Wang
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China
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3
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Sun Y, Sun X, Li X, Li W, Li C, Zhou Y, Wang L, Dong B. A versatile nanocomposite based on nanoceria for antibacterial enhancement and protection from aPDT-aggravated inflammation via modulation of macrophage polarization. Biomaterials 2020; 268:120614. [PMID: 33360771 DOI: 10.1016/j.biomaterials.2020.120614] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 11/25/2020] [Accepted: 12/15/2020] [Indexed: 12/19/2022]
Abstract
Antibacterial photodynamic therapy (aPDT) is of vital importance for the treatment of periodontal diseases due to its great potential on effective elimination of pathogenic bacteria via overwhelming reactive oxygen species (ROS) generation. However, the excessive ROS after the therapeutic process may impose an oxidative stress within periodontal pockets, consequently leading to an irreversible destroy in surrounding tissue and severely limit its biomedical applications. In this study, considering the contradiction between ROS in bacteriostasis and inflammation, the role of ROS in different temporal and spatial states has been fully studied. Accordingly, we have designed composite nanomaterials that can play ROS based aPDT and anti-inflammatory effect by eliminating ROS, taking account of different ratio of photosensitizer/ROS scavenger to realize a time-sequential manner. Herein, a simple multifunctional nanocomposite was fabricated by coating red light-excited photosensitizer chlorin e6 (Ce6) onto nanoceria, achieving simultaneous sterilization and inflammation elimination via a dual directional regulation effect. This nano-based platform could utilize the aPDT for antibacterial purpose in the first stage with red-light irradiation, and subsequently scavenge the residual ROS via nanoceria to modulate host immunity by down-regulating the M1 polarization (pro-inflammatory) of macrophages and up-regulating the M2 polarization (anti-inflammatory and regenerative) of macrophages. Moreover, the local ROS level induced by activated inflammation pathway can be adjusted in a very long time because of the charge conversion effect of CeO2. The regenerative potential of inflammatory surrounding tissues was improved in the animal model. Our strategy will open a new inspiration to fight against the defects of aPDT in the treatment of periodontal disease, even in the anti-infection therapy for the future clinical application.
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Affiliation(s)
- Yue Sun
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun, 130021, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, 130021, China
| | - Xiaolin Sun
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun, 130021, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, 130021, China
| | - Xue Li
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, 130021, China; Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, 266000, China
| | - Wen Li
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun, 130021, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, 130021, China
| | - Chunyan Li
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, 130021, China
| | - Yanmin Zhou
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun, 130021, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, 130021, China.
| | - Lin Wang
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun, 130021, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, 130021, China.
| | - Biao Dong
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, China.
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Mullani SB, Dhodamani AG, Shellikeri A, Mullani NB, Tawade AK, Tayade SN, Biscay J, Dennany L, Delekar SD. Structural refinement and electrochemical properties of one dimensional (ZnO NRs) 1-x(CNs) x functional hybrids for serotonin sensing studies. Sci Rep 2020; 10:15955. [PMID: 32994507 PMCID: PMC7524834 DOI: 10.1038/s41598-020-72756-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 08/10/2020] [Indexed: 12/28/2022] Open
Abstract
Herein, the efficient serotonin (5-HT) sensing studies have been conducted using the (ZnO NRs)1-x(CNs)x nanocomposites (NCs) having appropriate structural and electrochemical properties. Initially, the different compositions of ZnO nanorods (NRs), with varying content of carbon nanostructures (CNs=MWCNTs and RGO), are prepared using simple in-situ wet chemical method and thereafter these NCs have been characterized for physico-chemical properties in correlation to the 5-HT sensing activity. XRD Rietveld refinement studies reveal the hexagonal Wurtzite ZnO NRs oriented in (101) direction with space group 'P63mc' and both orientation as well as phase of ZnO NRs are also retained in the NCs due to the small content of CNs. The interconnectivity between the ZnO NRs with CNs through different functional moieties is also studied using FTIR analysis; while phases of the constituents are confirmed through Raman analysis. FESEM images of the bare/NCs show hexagonal shaped rods with higher aspect ratio (4.87) to that of others. BET analysis and EIS measurements reveal the higher surface area (97.895 m2/g), lower charge transfer resistance (16.2 kΩ) for the ZCNT 0.1 NCs to that of other NCs or bare material. Thereafter, the prepared NCs are deposited on the screen printed carbon electrode (SPCE) using chitosan as cross-linked agent for 5-HT sensing studies; conducted through cyclic voltammetry (CV) and square wave voltammetry (SWV) measurements. Among the various composites, ZCNT0.1 NCs based electrodes exhibit higher sensing activity towards 5-HT in accordance to its higher surface area, lower particle size and lower charge transfer resistance. SWV measurements provide a wide linear response range (7.5-300 μM); lower limit of detection (0.66 μM), excellent limit of quantification (2.19 μM) and good reproducibility to ZCNT 0.1 NCs as compared to others for 5-HT sensing studies.
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Affiliation(s)
- Sajid B Mullani
- Department of Chemistry, Shivaji University, Kolhapur, MS, 416004, India
| | - Ananta G Dhodamani
- Department of Chemistry, Shivaji University, Kolhapur, MS, 416004, India
| | - Annadanesh Shellikeri
- Department of Electrical and Computer Engineering, Florida A&M University-Florida State University, Tallahassee, FL, 32310-6046, USA
- Aero-Propulsion, Mechatronics and Energy Centre, Florida State University, Tallahassee, FL, 32310-6046, USA
| | - Navaj B Mullani
- Department of Advanced Materials and Chemical Engineering, Hanyang University (ERICA), Ansan, 15588, South Korea
| | - Anita K Tawade
- School of Nanoscience and Biotechnology, Shivaji University, Kolhapur, 416004, MS, India
| | - Shivaji N Tayade
- Department of Chemistry, Shivaji University, Kolhapur, MS, 416004, India
| | - Julien Biscay
- Department of Pure and Applied Chemistry, University of Strathclyde, Technology and Innovation Centre, 99 George Street, Glasgow, G1 1RD, UK
| | - Lynn Dennany
- Department of Pure and Applied Chemistry, University of Strathclyde, Technology and Innovation Centre, 99 George Street, Glasgow, G1 1RD, UK
| | - Sagar D Delekar
- Department of Chemistry, Shivaji University, Kolhapur, MS, 416004, India.
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Ma S, Gu J, Han Y, Gao Y, Zong Y, Ye Z, Xue J. Facile Fabrication of C-TiO 2 Nanocomposites with Enhanced Photocatalytic Activity for Degradation of Tetracycline. ACS OMEGA 2019; 4:21063-21071. [PMID: 31867498 PMCID: PMC6921265 DOI: 10.1021/acsomega.9b02411] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 11/18/2019] [Indexed: 05/21/2023]
Abstract
Visible-lightdriven C-TiO2 nanocomposites were prepared via a simple calcination and acid etching process. The C-TiO2 nanocomposites were characterized by X-ray photoelectron spectroscopy, Raman spectroscopy, X-ray diffraction, transmission electron microscopy, and high-resolution TEM. The results showed that TiO2 nanoparticles were combined with a porous carbon layer through surface C-O groups, which facilitates the strong interface interaction. The interface combination of nano-TiO2 and carbon material increases the specific surface area of nano-TiO2, widens the range of light response, and improves the efficiency of light-induced electron migration. The visible-light photocatalytic activity of the prepared photocatalyst was evaluated by the decomposition of tetracycline aqueous solution. Compared with that of pure TiO2, the photocatalytic activity of C-TiO2 nanocomposites was significantly improved. Furthermore, a possible photocatalytic mechanism was also tentatively proposed. This work can promote the development of active photocatalysts under solar light for the photodegradation of environmental pollutants.
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Affiliation(s)
- Shuaishuai Ma
- College
of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, P. R. China
| | - Jiandong Gu
- College
of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, P. R. China
| | - Yingxia Han
- College
of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, P. R. China
| | - Yuan Gao
- College
of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, P. R. China
| | - Yuqing Zong
- School
of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, P. R. China
| | - Zhaolian Ye
- College
of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, P. R. China
- E-mail: (Z.Y.)
| | - Jinjuan Xue
- School
of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, P. R. China
- E-mail: (J.X.)
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6
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Zhang WL, Yu H, Dong XT. Hemispheric ordered porous Eu(TTA)3(TPPO)2/ZnO fluorescence composites and its preparation method. POWDER TECHNOL 2019. [DOI: 10.1016/j.powtec.2019.07.069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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7
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Fan D, Liu X, Bao C, Feng J, Wang H, Ma H, Wu D, Wei Q. A novel sandwich-type photoelectrochemical immunosensor based on Ru(bpy) 32+ and Ce-CdS co-sensitized hierarchical ZnO matrix and dual-inhibited polystyrene@CuS-Ab 2 composites. Biosens Bioelectron 2019; 129:124-131. [PMID: 30690176 DOI: 10.1016/j.bios.2019.01.029] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 12/30/2018] [Accepted: 01/08/2019] [Indexed: 01/23/2023]
Abstract
A novel and sensitive sandwich-type photoelectrochemical (PEC) immunosensor was developed for the quantitative detection of β-amyloid protein (Aβ). A ITO electrode was sequentially coated with hierarchical porous zinc oxide (ZnO) microspheres with a large specific area, sensitized with tris(bipyridine)ruthenium(II) ion (Ru(bpy)32+) to achieve high visible light absorption, and modified with cerium-doped cadmium sulfide (Ce-CdS) nanoparticles to enhance the PEC response. Under the stimulation of visible light and ascorbic acid as an efficient electron donor, the photoelectric signal of ZnO/Ru(bpy)32+/Ce-CdS was 70 times that of pure ZnO. The amino-functionalized polystyrene (PS) microspheres coated with copper sulfide (CuS) was linked with a secondary antibody (Ab2) for the first time for the Aβ detection by the immunosensor. The good insulation and steric resistance of the as-prepared polystyrene@CuS-Ab2 (PS@CuS-Ab2) composite significantly weakened the photocurrent response of the immunosensor in the specific immune recognition. Under the optimal conditions, the quantitative detection of Aβ was achieved within the range of 0.001-100 ng/mL with the detection limit of 0.37 pg/mL. In addition, the PEC immunosensor is easy to make, stable and selective, which has provided a good experimental platform for the detection of disease biomarkers.
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Affiliation(s)
- Dawei Fan
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
| | - Xin Liu
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Chunzhu Bao
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Jinhui Feng
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Huan Wang
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Hongmin Ma
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Dan Wu
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Qin Wei
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
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8
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Mohammadian-Sarcheshmeh H, Mazloum-Ardakani M. Recent advancements in compact layer development for perovskite solar cells. Heliyon 2018; 4:e00912. [PMID: 30456323 PMCID: PMC6232632 DOI: 10.1016/j.heliyon.2018.e00912] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 10/20/2018] [Accepted: 10/29/2018] [Indexed: 11/26/2022] Open
Abstract
Herein, we will present recent progress in the compact layer (CL) or hole blocking layer (HBL) which is known as an important layer and not as an essential layer for perovskite solar cells (PSCs). The CL involves an effective role to enhance efficiency in PSCs. Thus, any change, modification, and replacement in this layer will have a profound effect on the performance and improvement of some characteristics such as photo-stability, durability and hysteresis effect. These changes can improve the applications of PSCs in the flexible cell, industrial mass production, high-scale manufacturing. In this review, we will present recent studies on CLs.
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Dastafkan K, Kiani A, Obeydavi A, Rahimi M. Crystallization and solid solution attainment of samarium doped ZnO nanorods via a combined ultrasonic-microwave irradiation approach. ULTRASONICS SONOCHEMISTRY 2018; 42:97-111. [PMID: 29429739 DOI: 10.1016/j.ultsonch.2017.11.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 11/05/2017] [Accepted: 11/06/2017] [Indexed: 06/08/2023]
Abstract
An advanced sol-gel method is developed via combined ultrasound-microwave irradiation and utilized for the crystallization of pristine and samarium doped zinc oxide nanorods. Organic structure directing agents directed one dimensional growth and air-annealing was applied as post-thermal treatment. Microstructural, optical, and solid state survey was pursued by PXRD, FESEM, TEM, EDS, FTIR, DRS, PL, micro-Raman, H2-TPR, and ESR techniques. Phase analysis by diffraction patterns confirmed the efficacy of irradiation strategy as it improves the crystallinity degree, expedites the hexagonal close pack morphology, and conducts lattice imperfection. Accordingly, aspect ratio and electronic evolution parallel to dopant content is favored. Electron microscopy demonstrated the flake-like rearrangement of nanorods as well as a structure-related growth where a direct proportion exists between atomic packing factor in lattice and aspect ratio. Textural investigation by EDS and FTIR rejected the presence of any impurity verifying an integrated composition. Reflectance and luminescence spectra exhibited characteristic optical behavior with shifts corresponding to dopant concentration. Also, band gap energies increased with samarium addition depicting an opposite trend with respect to unit cell variation. Finally, Raman, TPR, and ESR spectra provided detailed dopant-dependent trends on the internal solid state and defect chemistry of the nanorods. In this regard, maximum shifts in E2high and E1LO phonon modes duly correlated with the vibrations of zinc and oxygen atoms, surface oxygen and bulk ZnO reduction bands, emergence and alteration of samarium centers, along with the dominance of zinc and oxygen vacancies were all resulted due to the utmost lattice imperfection in SZO1.
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Affiliation(s)
- Kamran Dastafkan
- Young Researchers and Elite Club, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.
| | - Armin Kiani
- Research Center for Analytical Sciences, KAVA Research Institute, Tehran, Iran
| | - Ali Obeydavi
- Young Researchers and Elite Club, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
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10
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Ding X, Yang S, Miao B, Gu L, Gu Z, Zhang J, Wu B, Wang H, Wu D, Li J. Molecular gated-AlGaN/GaN high electron mobility transistor for pH detection. Analyst 2018; 143:2784-2789. [DOI: 10.1039/c8an00032h] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A molecular gated-AlGaN/GaN high electron mobility transistor has been developed for pH detection.
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11
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Wang C, Wu Y, Lu J, Zhao J, Cui J, Wu X, Yan Y, Huo P. Bioinspired Synthesis of Photocatalytic Nanocomposite Membranes Based on Synergy of Au-TiO 2 and Polydopamine for Degradation of Tetracycline under Visible Light. ACS APPLIED MATERIALS & INTERFACES 2017; 9:23687-23697. [PMID: 28656749 DOI: 10.1021/acsami.7b04902] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
A bioinspired photocatalytic nanocomposite membrane was successfully prepared via polydopamine (pDA)-coated poly(vinylidene fluoride) (PVDF) membrane, as a secondary platform for vacuum-filtrated Au-TiO2 nanocomposites, with enhanced photocatalytic activity. The degradation efficiency of Au-TiO2/pDA/PVDF membranes reached 92% when exposed to visible light for 120 min, and the degradation efficiency of Au-TiO2/pDA/PVDF membranes increased by 26% compared to that of Au-TiO2 powder and increased by 51% compared to that of TiO2/pDA/PVDF nanocomposite membranes. The degradation efficiency remained about 90% after five cycle experiments, and the Au-TiO2/pDA/PVDF nanocomposite membranes showed good stability, regeneration performance, and easy recycling. The pDA coating not only served as a bioadhesion interface to improve the bonding force between the catalyst and the membrane substrate but also acted as a photosensitizer to broaden the wavelength response range of TiO2, and the structure of Au-TiO2/pDA/PVDF also improves the transfer rate of photogenerated electrons; the surface plasmon resonance effect of Au also played a positive role in improving the activity of the catalyst. Therefore, we believe that this study opens up a new strategy in preparing the bioinspired photocatalytic nanocomposite membrane for potential wastewater purification, catalysis, and as a membrane separation field.
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Affiliation(s)
- Chen Wang
- School of Chemistry and Chemical Engineering, Jiangsu University , Zhenjiang 212013, P. R. China
| | - Yilin Wu
- School of Chemistry and Chemical Engineering, Jiangsu University , Zhenjiang 212013, P. R. China
| | - Jian Lu
- School of Chemistry, Jilin Normal University , Siping 136000, P. R. China
| | - Juan Zhao
- School of Chemistry and Chemical Engineering, Jiangsu University , Zhenjiang 212013, P. R. China
| | - Jiuyun Cui
- School of Chemistry and Chemical Engineering, Jiangsu University , Zhenjiang 212013, P. R. China
| | - Xiuling Wu
- School of Pharmacy, Guangdong Pharmaceutical University , Guangzhou 510006, P. R. China
| | - Yongsheng Yan
- School of Chemistry and Chemical Engineering, Jiangsu University , Zhenjiang 212013, P. R. China
| | - Pengwei Huo
- School of Chemistry and Chemical Engineering, Jiangsu University , Zhenjiang 212013, P. R. China
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12
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Raza W, Faisal SM, Owais M, Bahnemann D, Muneer M. Facile fabrication of highly efficient modified ZnO photocatalyst with enhanced photocatalytic, antibacterial and anticancer activity. RSC Adv 2016. [DOI: 10.1039/c6ra06774c] [Citation(s) in RCA: 122] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Photocatalytic degradation of organic pollutants using hexagonal Er and Nd doped ZnO photocatalyst.
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Affiliation(s)
- Waseem Raza
- Department of Chemistry
- Aligarh Muslim University
- Aligarh-202002
- India
| | - Syed Mohammad Faisal
- Interdisciplinary Biotechnology Unit
- Aligarh Muslim University
- Aligarh-202002
- India
| | - Mohammad Owais
- Interdisciplinary Biotechnology Unit
- Aligarh Muslim University
- Aligarh-202002
- India
| | - D. Bahnemann
- Photocatalysis and Nanotechnology
- Institut fuer Technische Chemie
- Gottfried Wilhelm Leibniz Universitaet Hannover
- D-30167 Hannover
- Germany
| | - M. Muneer
- Department of Chemistry
- Aligarh Muslim University
- Aligarh-202002
- India
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13
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Giri AK, Saha A, Mondal A, Chandra Ghosh S, Kundu S, Panda AB. Rectangular ZnO porous nano-plate assembly with excellent acetone sensing performance and catalytic activity. RSC Adv 2015. [DOI: 10.1039/c5ra19828c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
An assembled porous rectangular single crystalline ZnO plate with superior acetone sensing performance and catalytic activity is presented.
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Affiliation(s)
- Arnab Kanti Giri
- Inorganic Materials and Catalysis Division
- Academy of Scientific and Innovative Research
- CSIR-Central Salt and Marine Chemicals Research Institute
- Bhavnagar-364002, India
| | - Arka Saha
- Inorganic Materials and Catalysis Division
- Academy of Scientific and Innovative Research
- CSIR-Central Salt and Marine Chemicals Research Institute
- Bhavnagar-364002, India
| | - Aniruddha Mondal
- Inorganic Materials and Catalysis Division
- Academy of Scientific and Innovative Research
- CSIR-Central Salt and Marine Chemicals Research Institute
- Bhavnagar-364002, India
| | - Subhash Chandra Ghosh
- Inorganic Materials and Catalysis Division
- Academy of Scientific and Innovative Research
- CSIR-Central Salt and Marine Chemicals Research Institute
- Bhavnagar-364002, India
| | - Susmita Kundu
- Sensors and Actuators Division
- CSIR-Central Glass & Ceramic Research Institute
- Kolkata-700032, India
| | - Asit Baran Panda
- Inorganic Materials and Catalysis Division
- Academy of Scientific and Innovative Research
- CSIR-Central Salt and Marine Chemicals Research Institute
- Bhavnagar-364002, India
| |
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