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Masar M, Ali H, Yasir M, Hanulikova B, Sisman O, Zitnan M, Machovsky M, Velazquez JJ, Galusek D, Kuritka I. Anelosimuseximius bioinspired ZnO nano cobwebs for environmental remediation of drugs and endocrine disruptors from water. CHEMOSPHERE 2024; 365:143327. [PMID: 39271077 DOI: 10.1016/j.chemosphere.2024.143327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 08/28/2024] [Accepted: 09/10/2024] [Indexed: 09/15/2024]
Abstract
The pollution of wastewater with pharmaceuticals and endocrine-disrupting chemicals (EDCs) in populated areas poses a growing threat to humans and ecosystems. To address this serious problem, various one-dimensional (1D) hierarchical ZnO-based nanostructures inspired by Anelosimus eximius cobwebs were developed and successfully grown on a glass substrate through simple hydrothermal synthesis. The nanorods (nr) obtained during primary growth were chemically etched with KOH (ZnOnr-KOH), followed by the secondary growth of nano cobweb-like (ncw) structures using polyethyleneimine (ZnOnr/ncw). These structures were further decorated by the photoreduction of Ag nanoparticles (ZnOnr/ncw/Ag). The feasibility of ZnO-based 1D nanostructures to remove pollutants was demonstrated by degrading commonly prescribed pharmaceutical drugs (diclofenac and carbamazepine) in a miniature cuvette reactor. The photocatalytic activities for drug degradation generally decreased in the order ZnOnr/ncw/Ag > ZnOnr/ncw > ZnOnr-KOH. Additionally, the suitability of the samples for scaling up and practical application was demonstrated by photocatalytic degradation of the hormone estriol (E3) in a flow-through photoreactor. The photocatalytic degradation efficiency of E3 followed the same trend observed for drug degradation, with the complete elimination of the endocrine disruptor achieved by the best-performing ZnOnr/ncw/Ag within 4 h, due to optimized charge transfer and separation at the heterostructure interface.
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Affiliation(s)
- Milan Masar
- Centre of Polymer Systems, Tomas Bata University in Zlin, Tr. T. Bati 5678, 76001, Zlin, Czech Republic
| | - Hassan Ali
- Centre of Polymer Systems, Tomas Bata University in Zlin, Tr. T. Bati 5678, 76001, Zlin, Czech Republic
| | - Muhammad Yasir
- Centre of Polymer Systems, Tomas Bata University in Zlin, Tr. T. Bati 5678, 76001, Zlin, Czech Republic
| | - Barbora Hanulikova
- Centre of Polymer Systems, Tomas Bata University in Zlin, Tr. T. Bati 5678, 76001, Zlin, Czech Republic
| | - Orhan Sisman
- Centre for Functional and Surface Functionalized Glass, Alexander Dubček University of Trenčín, Študentská 2, SK-911 50, Trenčín, Slovakia
| | - Michal Zitnan
- Centre for Functional and Surface Functionalized Glass, Alexander Dubček University of Trenčín, Študentská 2, SK-911 50, Trenčín, Slovakia
| | - Michal Machovsky
- Centre of Polymer Systems, Tomas Bata University in Zlin, Tr. T. Bati 5678, 76001, Zlin, Czech Republic.
| | - Jose J Velazquez
- Centre for Functional and Surface Functionalized Glass, Alexander Dubček University of Trenčín, Študentská 2, SK-911 50, Trenčín, Slovakia
| | - Dusan Galusek
- Centre for Functional and Surface Functionalized Glass, Alexander Dubček University of Trenčín, Študentská 2, SK-911 50, Trenčín, Slovakia; Join Glass Centre of the IIC SAS, TnU AD, and FChPT STU, Trenčín, Slovakia
| | - Ivo Kuritka
- Centre of Polymer Systems, Tomas Bata University in Zlin, Tr. T. Bati 5678, 76001, Zlin, Czech Republic
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Butburee T, Prasert A, Rungtaweevoranit B, Khemthong P, Mano P, Youngjan S, Phanthasri J, Namuangruk S, Faungnawakij K, Zhang L, Jin P, Liu H, Wang F. Engineering Lewis-Acid Defects on ZnO Quantum Dots by Trace Transition-Metal Single Atoms for High Glycerol-to-Glycerol Carbonate Conversion. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403661. [PMID: 38994824 DOI: 10.1002/smll.202403661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 07/02/2024] [Indexed: 07/13/2024]
Abstract
Efficient conversion of biomass wastes into valuable chemicals has been regarded as a sustainable approach for green and circular economy. Herein, a highly efficient catalytic conversion of glycerol (Gly) into glycerol carbonate (GlyC) by carbonylation with the commercially available urea is presented using low-cost transition metal single atoms supported on zinc oxide quantum dots (M1-ZnO QDs) as a catalyst without using any solvent. A facile one-step wet chemical synthesis allows various types of metal single atoms to simultaneously dope and introduce Lewis-acid defects in the ZnO QD structure. It is found that doping with a trace amount of isolated metal atoms greatly boosts the catalytic activity with Gly conversion of 90.7%, GlyC selectivity of 100.0%, and GlyC yield of 90.6%. Congruential results from both Density Functional Theory (DFT) and in situ Diffuse Reflectance Infrared Fourier Transform Spectroscopy (in situ DRIFTS) studies reveal that the superior catalytic performance can be attributed to the enriched Lewis acid sites that endow optimal adsorption, formation of the intermediate for coupling between urea and Gly, and desorption of GlyC. Moreover, the tiny size of ZnO QDs efficiently promotes the accessibility of these active sites to the reactants.
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Affiliation(s)
- Teera Butburee
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Pathum Thani, 12120, Thailand
- Shanghai Synchrotron Radiation Facility (SSRF), Shanghai Advanced Research Institute (SARI), Chinese Academy of Sciences (CAS), 239 Zhangheng Rd., New Pudong District, Shanghai, 201204, P. R. China
- State Key Laboratory of Catalysis (SKLC), Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences (CAS), 457 Zhongshan Road, Dalian, 116023, P. R. China
| | - Ampawan Prasert
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Pathum Thani, 12120, Thailand
| | - Bunyarat Rungtaweevoranit
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Pathum Thani, 12120, Thailand
| | - Pongtanawat Khemthong
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Pathum Thani, 12120, Thailand
| | - Poobodin Mano
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Pathum Thani, 12120, Thailand
| | - Saran Youngjan
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Pathum Thani, 12120, Thailand
| | - Jakkapop Phanthasri
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Pathum Thani, 12120, Thailand
| | - Supawadee Namuangruk
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Pathum Thani, 12120, Thailand
| | - Kajornsak Faungnawakij
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Pathum Thani, 12120, Thailand
| | - Lijuan Zhang
- Shanghai Synchrotron Radiation Facility (SSRF), Shanghai Advanced Research Institute (SARI), Chinese Academy of Sciences (CAS), 239 Zhangheng Rd., New Pudong District, Shanghai, 201204, P. R. China
| | - Ping Jin
- State Key Laboratory of Catalysis (SKLC), Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences (CAS), 457 Zhongshan Road, Dalian, 116023, P. R. China
- University of Chinese Academy of Sciences (UCAS), Beijing, 100049, P. R. China
| | - Huifang Liu
- State Key Laboratory of Catalysis (SKLC), Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences (CAS), 457 Zhongshan Road, Dalian, 116023, P. R. China
| | - Feng Wang
- State Key Laboratory of Catalysis (SKLC), Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences (CAS), 457 Zhongshan Road, Dalian, 116023, P. R. China
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Guo Y, Liu M, Yuan C, Ren Z, Liu Y. Combining Polymer Zwitterions and Zinc Oxide for High Performance Inverted Organic Solar Cells. Macromol Rapid Commun 2022; 43:e2200291. [PMID: 35642107 DOI: 10.1002/marc.202200291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/07/2022] [Indexed: 11/11/2022]
Abstract
Zinc oxide (ZnO) is a widely used cathode interlayer material in inverted organic solar cells (OSCs). However, there are lots of surface or bulk film defects in ZnO layers, which degrades solar cell performance. Here, the typical phosphorylcholine- and sulfobetaine-based polymer zwitterions (PMPC and PDMAPS) were synthesized via reversible addition-fragmentation chain-transfer (RAFT) polymerization to modify ZnO interlayers for inverted OSCs. The polymer zwitterions can efficiently passivate the defects in ZnO films and thus increase the conductivity of the ZnO interlayers. Both PMPC and PDMAPS modified ZnO interlayers show some general advantages on improving the performance of fullerene-based and non-fullerene-based OSCs. A highest efficiency of 16.69% was achieved by using PMPC modified ZnO interlayers in PM6:Y6 based solar cell devices, which is among the best performance in inverted OSCs. Such an improvement on device performance is attribute to the work function reduction of the polymer zwitterions modified ZnO films, which provides an efficient cathode platform to extract and transport electrons from the active layers, to the benefit of suppressing interfacial charge recombination. As a result, the organic-inorganic hybrid composites (ZnO: polymer zwitterions) show efficient interfacial modification to align energy-levels at the device interface, which have promising application prospects in organic electronics. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Yanan Guo
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter, Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Ming Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter, Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Chenyuhe Yuan
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter, Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Zhongjie Ren
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter, Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Yao Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter, Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
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Arumugasamy SK, Ramakrishnan S, Yoo DJ, Govindaraju S, Yun K. Tuning the interfacial electronic transitions of bi-dimensional nanocomposites (pGO/ZnO) towards photocatalytic degradation and energy application. ENVIRONMENTAL RESEARCH 2022; 204:112050. [PMID: 34516981 DOI: 10.1016/j.envres.2021.112050] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 08/13/2021] [Accepted: 08/26/2021] [Indexed: 06/13/2023]
Abstract
The two-dimensional carbonaceous nanocomposites tend to have extreme capacitance and catalysis activity because of their surface tunability of oxygenated moieties aiding in photocatalytic degradation. Herewith, we performed microwave-assisted alkaline treatment of graphene oxide sheets to attain defective sites on the graphitic surface by altering microwave parameters. The synergism of zinc oxide (ZnO) on the graphitic surface impacts electronic transitions paving paths for vacant oxygen sites to promote photocatalytic degradation and catalytic activity. The photocatalytic efficiency of the synthesized material for the degradation of rhodamine B (RhB) because of its susceptibility in industrial effluents, and the degradation rate was estimated to be around 87.5% within a short span of 30 min by utilizing UV irradiation. Concomitantly, the pGO/ZnO coated substrate exhibits a specific capacity of 561.7 mAh/g and incredible coulombic efficiency illustrating pseudocapacitive nature. Furthermore, on subjecting the composite modified electrode to oxygen evolution catalysis due to the vacant sites located at the lattice edges attributing to the d-d coulombic interaction within the local electron clouds possessing a low overpotential of 205 mV with a Tafel slope of 84 mV/dec. This modest approach boosts an eco-friendly composite to develop photocatalytic degradability and bifunctional catalytic activity for futuristic necessity.
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Affiliation(s)
| | - Shanmugam Ramakrishnan
- Deparment of Energy Storage/Conversion Engineering of Graduate School (BK21 FOUR), Jeonbuk National University, Jeollabuk-do 54896, Republic of Korea
| | - Dong Jin Yoo
- Department of life science, R&D Education Center for Whole Life Cycle, R&D of Fuel Cell Systems, Jeonbuk National University, Jeonju, Jeollabuk-do, 54896, Republic of Korea; Deparment of Energy Storage/Conversion Engineering of Graduate School (BK21 FOUR), Jeonbuk National University, Jeollabuk-do 54896, Republic of Korea
| | - Saravanan Govindaraju
- Department of Bionanotechnology, Gachon University, Seongnam-si, 13120, Republic of Korea.
| | - Kyusik Yun
- Department of Bionanotechnology, Gachon University, Seongnam-si, 13120, Republic of Korea.
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Gharpure S, Yadwade R, Ankamwar B. Non-antimicrobial and Non-anticancer Properties of ZnO Nanoparticles Biosynthesized Using Different Plant Parts of Bixa orellana. ACS OMEGA 2022; 7:1914-1933. [PMID: 35071882 PMCID: PMC8771956 DOI: 10.1021/acsomega.1c05324] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 12/27/2021] [Indexed: 05/02/2023]
Abstract
As traditional cancer therapy is toxic to both normal and cancer cells, there is a need for newer approaches to specifically target cancer cells. ZnO nanoparticles can be promising due their biocompatible nature. However, ZnO nanoparticles have also shown cytotoxicity against mammalian cells in some cases, because of which there is a need for newer synthesis approaches for biocompatible ZnO nanoparticles to be used as carrier molecules in drug delivery applications. Here, we report the biosynthesis of ZnO nanoparticles using different plant parts (leaf, seed, and seed coat) of Bixa orellana followed by different characterizations. The UV-visible spectra of ZnO showed absorption maxima at 341 and 353 nm, 378 and 373 nm, and 327 and 337 nm, respectively, before and after calcination corresponding to the band gap energy of 3.636 and 3.513 eV, 3.280 and 3.324 eV, and 3.792 and 3.679 eV for L-ZnO, S-ZnO, and Sc-ZnO, respectively. X-ray diffraction analysis confirmed the formation of hexagonal wurtzite structures. Attenuated total reflectance infrared spectra revealed the presence of stretching vibrations of C-C, C=C, C=O, and NH3 + groups along with C-H deformation involving biomolecules from extracts responsible for reduction and stabilization of nanoparticles. Field emission scanning electron microscopy and transmission electron microscopy images showed spherical and almond-like morphologies of L-ZnO and Sc-ZnO with spherical morphologies, whereas S-ZnO showed almond-like morphologies. The presence of antibacterial activity was observed in L-ZnO against Staphylococcus aureus and Bacillus subtilis, in S-ZnO nanoparticles only against Escherichia coli, and in Sc-ZnO only against Staphylococcus aureus. Uncalcinated ZnO nanoparticles showed weak antibacterial activities, whereas calcinated ZnO nanoparticles showed a non-antibacterial nature. The antifungal activity against different fungi (Penicillium sp., Aspergillus flavus, Fusarium oxysporum, and Rhizoctonia solani) and cytotoxicity against HCT-116 cancer cells were not observed before and after calcination in all three ZnO nanoparticles. The antimicrobial nature and biocompatibility of ZnO nanoparticles were influenced by different parameters of the nanoparticles along with microorganisms and the human cells. Non-antimicrobial properties of ZnO nanoparticles can be treated as a pre-requisite for its biocompatibility due to its inert nature. Thus, biosynthesized ZnO nanoparticles showed a nontoxic nature, which can be exploited as promising alternatives in biomedical applications.
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Synthesis, Characterization and Gas Sensing Study of ZnO-SnO2 Nanocomposite Thin Films. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9060124] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Thin nanocomposite films composed of ZnO and SnO2 at 0.5–5 mol.% concentrations were synthesized by a new solid-phase low-temperature pyrolysis under the developed protocols. This hetero-oxide material was thoroughly studied by X-ray diffraction analysis (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy (AES) techniques to be compared with electrical and gas-sensing properties. We have found that the films have a poly-nanocrystal structure of ZnO and SnO2 crystals with characteristic grain sizes at 10–15 nm range. When comparing the chemiresistive response of the films with varied tin dioxide content, the sample of Sn:Zn optimum ratio taken as 1:99 yields 1.5-fold improvement upon to 5–50 ppm NO2 exposure at 200 °C. We argue that these remarkable changes have matured from both a reducing the intergrain potential barrier down to 0.58 eV and increasing the concentration of anionic vacancies at this rational composite. The results demonstrate that solid-phase low-temperature pyrolysis is a powerful technique for adjusting the functional gas-sensing properties of hetero-oxide film via modifying the ratio of the oxide components.
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Rodrigues J, Medeiros S, Vilarinho PM, Costa MEV, Monteiro T. Optical properties of hydrothermally synthesised and thermally annealed ZnO/ZnO 2 composites. Phys Chem Chem Phys 2020; 22:8572-8584. [PMID: 32255108 DOI: 10.1039/d0cp00091d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
ZnO/ZnO2 composites grown by hydrothermal synthesis at low temperature (180 °C) and thermally annealed at 300 °C were fully analysed by morphological, structural and optical techniques. X-ray diffraction patterns (XRD) and Raman spectroscopy clearly evidence the presence of both crystalline phases in the ZnO/ZnO2 sample. The differential scanning calorimetry analysis and thermogravimetric profiles indicate an exothermic event with a peak temperature ca. 225 °C, which is accompanied by a 8.5% weight loss, being attributed to the crystallization of ZnO from ZnO2. Upon a thermal annealing treatment at 300 °C the ZnO2 phase was completely converted into ZnO, as measured by XRD and Raman spectroscopy. Photoluminescence investigations reveal that the emission is dominated by a broad band recombination in both samples, due to the overlapping of different emitting centres, and that the peak position of the PL emission is dependent on the excitation density. The ZnO/ZnO2 sample exhibits a widening of the bandgap when compared to the one only containing ZnO, likely related to the presence of the additional ZnO2 phase and suggesting a bandgap energy of ~3.42 eV for this compound. Surface analysis revealed that the sample exhibits a surface area of 90 m2 g-1, which decreases to 30 m2 g-1 after the thermal annealing and the full conversion into ZnO. This difference in the surface area showed particular relevance in the stability of the measured optical properties. Particularly, the intensity of the photoluminescence signal was seen to be higher in the ZnO/ZnO2 sample and strongly dependent on the measurement atmosphere, highlighting its potential to be employed in the fabrication of optical-based sensing systems for environmental applications, namely in gas sensors.
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Affiliation(s)
- Joana Rodrigues
- I3N & Physics Department, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
| | - Sloany Medeiros
- CICECO - Aveiro Institute of Materials, Department of Materials and Ceramics Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Paula M Vilarinho
- CICECO - Aveiro Institute of Materials, Department of Materials and Ceramics Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
| | - M Elisabete V Costa
- CICECO - Aveiro Institute of Materials, Department of Materials and Ceramics Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Teresa Monteiro
- I3N & Physics Department, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
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Zheng Y, Zhai Y, Tu M, Huang X, Shu M, Guo X, Ying Y, Wu Y, Wen Y, Yang H. Bimetallic alloy and semiconductor support synergistic interaction effects for superior electrochemical catalysis. NANOSCALE 2020; 12:4719-4728. [PMID: 32049072 DOI: 10.1039/c9nr09608f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The design and fabrication of economically viable anode catalysts for the methanol oxidation reaction (MOR) have been challenging issues in direct methanol fuel cells (DMFCs) over the decades. In this work, a composite electrochemical catalyst of Pd-coupled Ag and ZnO for the possible replacement of expensive Pt catalysts in DMFCs is successfully prepared. The as-made Pd@Ag/ZnO exhibits specific activity, which is 1.8-fold, 2.8-fold, and 4.6-fold higher than that of a Pd/ZnO catalyst, 20% Pd/C catalyst and Pd black, respectively. The improvement of the catalytic mechanism is likely due to the synergistic interaction between Pd@Ag and ZnO. The density functional theory (DFT) calculation results confirm that Ag doped into Pd weakens the adsorption of CO, dramatically improving the capability to resist CO poisoning.
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Affiliation(s)
- Yunshan Zheng
- The Education Ministry Key Lab of Resource Chemistry, Department of Chemistry, Shanghai Normal University, Shanghai, 200234, P. R. China.
| | - Yan Zhai
- The Education Ministry Key Lab of Resource Chemistry, Department of Chemistry, Shanghai Normal University, Shanghai, 200234, P. R. China.
| | - Maomao Tu
- The Education Ministry Key Lab of Resource Chemistry, Department of Chemistry, Shanghai Normal University, Shanghai, 200234, P. R. China.
| | - Xinhua Huang
- The Education Ministry Key Lab of Resource Chemistry, Department of Chemistry, Shanghai Normal University, Shanghai, 200234, P. R. China.
| | - Mingcong Shu
- The Education Ministry Key Lab of Resource Chemistry, Department of Chemistry, Shanghai Normal University, Shanghai, 200234, P. R. China.
| | - Xiaoyu Guo
- The Education Ministry Key Lab of Resource Chemistry, Department of Chemistry, Shanghai Normal University, Shanghai, 200234, P. R. China.
| | - Ye Ying
- The Education Ministry Key Lab of Resource Chemistry, Department of Chemistry, Shanghai Normal University, Shanghai, 200234, P. R. China.
| | - Yiping Wu
- The Education Ministry Key Lab of Resource Chemistry, Department of Chemistry, Shanghai Normal University, Shanghai, 200234, P. R. China.
| | - Ying Wen
- The Education Ministry Key Lab of Resource Chemistry, Department of Chemistry, Shanghai Normal University, Shanghai, 200234, P. R. China.
| | - Haifeng Yang
- The Education Ministry Key Lab of Resource Chemistry, Department of Chemistry, Shanghai Normal University, Shanghai, 200234, P. R. China.
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Wang X, Xu K, Yan X, Xiao X, Aruta C, Foglietti V, Ning Z, Yang N. Amorphous ZnO/PbS Quantum Dots Heterojunction for Efficient Responsivity Broadband Photodetectors. ACS APPLIED MATERIALS & INTERFACES 2020; 12:8403-8410. [PMID: 31970987 DOI: 10.1021/acsami.9b19486] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The integration of lead sulfide quantum dots (QDs) with a high-conductivity material that is compatible with a scalable fabrication is an important route for the applications of QD-based photodetectors. Herein, we first developed a broadband photodetector by combining amorphous ZnO and PbS QDs, forming a heterojunction structure. The photodetector showed detectivity up to 7.9 × 1012 and 4.1 × 1011 jones under 640 and 1310 nm illumination, respectively. The role of the oxygen background pressure in the electronic structure of ZnO films grown by pulsed laser deposition was systematically studied, and it was found to play an important role in the conductivity associated with the variation of the oxygen vacancy concentration. By increasing the oxygen vacancy concentration, the electron mobility of amorphous ZnO layers dramatically increased and the work function decreased, which were beneficial for the photocurrent enhancement of ZnO/PbS QD photodetectors. Our results provide a simple and highly scalable approach to develop broadband photodetectors with high performance.
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Affiliation(s)
- Xinyu Wang
- School of physical science and technology , ShanghaiTech University , Shanghai 201210 , P. R. China
| | - Kaimin Xu
- School of physical science and technology , ShanghaiTech University , Shanghai 201210 , P. R. China
| | - Xiaoyan Yan
- School of physical science and technology , ShanghaiTech University , Shanghai 201210 , P. R. China
| | - Xiongbin Xiao
- School of physical science and technology , ShanghaiTech University , Shanghai 201210 , P. R. China
| | - Carmela Aruta
- National Research Council CNR-SPIN , sede di Tor Vergata, DICII, Via del Politecnico 1 , Roma I-00133 , Italy
| | - Vittorio Foglietti
- National Research Council CNR-SPIN , sede di Tor Vergata, DICII, Via del Politecnico 1 , Roma I-00133 , Italy
| | - Zhijun Ning
- School of physical science and technology , ShanghaiTech University , Shanghai 201210 , P. R. China
| | - Nan Yang
- School of physical science and technology , ShanghaiTech University , Shanghai 201210 , P. R. China
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Opto-electrochemical functionality of Ru(II)-reinforced graphene oxide nanosheets for immunosensing of dengue virus non-structural 1 protein. Biosens Bioelectron 2020; 150:111878. [DOI: 10.1016/j.bios.2019.111878] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 10/25/2019] [Accepted: 11/11/2019] [Indexed: 12/11/2022]
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Sakr NI, Patterson MC, Daemen L, Poliakoff ED, Sprunger PT. Vibrational and Structural Studies of Environmentally Persistent Free Radicals Formed by Phenol-Dosed Metal Oxide Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:16726-16733. [PMID: 31786916 DOI: 10.1021/acs.langmuir.9b02948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Environmentally persistent free radicals (EPFRs) are formed by the adsorption of substituted aromatic precursors on the surface of metal oxides and are known to have significant health and environmental impact due to their unique stability. In this article, the formation of EPFRs is studied by adsorption of phenol on ZnO, CuO, Fe2O3, and TiO2 nanoparticles (∼10-50 nm) at high temperatures. Electron paramagnetic resonance indicates the formation of phenoxyl-type radicals. Fourier transform infrared spectroscopy provides further evidence of EPFR formation by the disappearance of -OH groups, indicating the chemisorption of the organic precursor on the metal oxide surface. These results are further confirmed by inelastic neutron scattering, which shows both ring out-of-plane bend and C-H in-plane bend motions characteristic of phenol adsorption on the studied systems. Also, the changes in the oxidation state of the metal cations are investigated by X-ray photoelectron spectroscopy, which shows that the direction of electron transfer (redox) during phenol chemisorption is strongly dependent on surface properties as well as surface defects of the metal oxide surface.
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Affiliation(s)
- Nadra I Sakr
- Department of Physics and Astronomy , Louisiana State University , 202 Nicholson Hall , Baton Rouge , Louisiana 70803 , United States
| | - Matthew C Patterson
- Department of Chemistry , Louisiana State University , 232 Choppin Hall , Baton Rouge , Louisiana 70803 , United States
| | - Luke Daemen
- Spallation Neutron Source , Oak Ridge National Laboratory , MS-6473 , Oak Ridge , Tennessee 37831 , United States
| | - Erwin D Poliakoff
- Department of Chemistry , Louisiana State University , 232 Choppin Hall , Baton Rouge , Louisiana 70803 , United States
| | - Phillip T Sprunger
- Department of Physics and Astronomy , Louisiana State University , 202 Nicholson Hall , Baton Rouge , Louisiana 70803 , United States
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Islam MT, Dominguez A, Alvarado-Tenorio B, Bernal RA, Montes MO, Noveron JC. Sucrose-Mediated Fast Synthesis of Zinc Oxide Nanoparticles for the Photocatalytic Degradation of Organic Pollutants in Water. ACS OMEGA 2019; 4:6560-6572. [PMID: 31459786 PMCID: PMC6648840 DOI: 10.1021/acsomega.9b00023] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 02/13/2019] [Indexed: 05/07/2023]
Abstract
We report a facile method for the synthesis of zinc oxide nanoparticles (nZnOs) by rapidly heating a paste of zinc nitrate and sucrose on the hot plate at 500 °C. The transmission electron microscopy images revealed the spherical shape of the nZnO with an average size of 35 nm. The band gap and the specific surface area of the nZnO were measured to be about 3.32 eV and 80.11 m2/g, respectively. The nZnO was utilized for the photocatalytic degradation of methyl orange (MO) and methylene blue (MB) in water under the ultraviolet (UV-B) light and sunlight irradiation. Photocatalysis was performed in two types of water matrices, viz., the deionized water and the simulated fresh drinking water. Almost a complete degradation of MO and MB was obtained within 30 min of UV-B light irradiation. Under sunlight irradiation, more than 95% of the MO solution underwent degradation within 30 min. The photocatalytic stability of the nZnO was examined for five cycles, and a similar activity was found throughout the cycles. The photocatalytic generation of the hydroxyl radical (•OH) was confirmed by the terephthalic acid photoluminescence tests. Moreover, the synthesis methodology was validated by triplicating the nZnO synthesis. Every time, the nZnO demonstrated a similar photocatalytic activity, which confirmed the robustness of the synthesis procedure.
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Affiliation(s)
- Md. Tariqul Islam
- Department
of Chemistry, University of Texas, El Paso, 500 West University Avenue, El Paso, Texas 79968, United States
- Nanosystems
Engineering Research Center for Nanotechnology-Enabled Water Treatment
(NEWT), Rice University, 6100 Main Steet, MS 6398, Houston, Texas 77005, United States
- E-mail: , (M.T.I.)
| | - Arieana Dominguez
- Department
of Chemistry, University of Texas, El Paso, 500 West University Avenue, El Paso, Texas 79968, United States
| | - Bonifacio Alvarado-Tenorio
- Instituto
de Ciencias Biomédicas, Universidad
Autónoma de Ciudad Juárez, Ciudad Juárez, Chihuahua 32315, Mexico
| | - Ricardo A. Bernal
- Department
of Chemistry, University of Texas, El Paso, 500 West University Avenue, El Paso, Texas 79968, United States
| | - Milka O. Montes
- Department
of Chemistry, University of Texas, Permian
Basin, 4901 E University
Blvd, Odessa, Texas 79762, United States
| | - Juan C. Noveron
- Department
of Chemistry, University of Texas, El Paso, 500 West University Avenue, El Paso, Texas 79968, United States
- Nanosystems
Engineering Research Center for Nanotechnology-Enabled Water Treatment
(NEWT), Rice University, 6100 Main Steet, MS 6398, Houston, Texas 77005, United States
- E-mail: (J.C.N.)
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13
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Ciolan MA, Motrescu I, Sugiura K, Luca D, Nagatsu M. Tailoring the Surface Functionalities of Radio Frequency Magnetron-Sputtered ZnO Thin Films by Ar/NH 3 Gas Mixture Surface-Wave Plasmas. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:11253-11263. [PMID: 30156847 DOI: 10.1021/acs.langmuir.8b01183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The surface functionalization of radio frequency magnetron-sputtered zinc oxide (ZnO) thin films tailored by low-pressure Ar/NH3 mixture surface-wave plasmas (SWPs) is discussed based on the results of photoluminescence (PL), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and spectrophotometric measurements. At an Ar/NH3 gas mixture ratio of 70%/30%, both the PL intensity of the near-band-edge emission and the XRD intensity of the ZnO(002) reflection peak were enhanced by about 5.5 and 8 times, respectively, compared to the values for the as-grown sample. Furthermore, the XPS and spectrophotometric analyses using the fluorescent dye showed that the amine group functionalization over the surface of the ZnO films reached their maximum values at the same gas ratio. From the results of optical emission spectroscopic and ion mass spectrometric measurements in the Ar/NH3 mixture SWPs, it is inferred that the nitrogen-containing reactive species, such as NH x+ ( x = 1-4) ions and NH y ( y = 1, 2) molecules in addition to H radicals might crucially interact with the defective ZnO surface lattices to repair the ZnO thin films from compressive to strain-free crystallized structures, enhance the PL intensity, and produce the amine group surface functionalization.
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Affiliation(s)
- Mihai Alexandru Ciolan
- Research Institute of Electronics , Shizuoka University , 3-5-1, Johoku , Naka-ku, Hamamatsu 432-8011 , Japan
- Department of Physics , "Alexandru Ioan Cuza" University , 11, Carol I Blvd. , 700506 Iasi , Romania
| | - Iuliana Motrescu
- Research Institute of Electronics , Shizuoka University , 3-5-1, Johoku , Naka-ku, Hamamatsu 432-8011 , Japan
- Department of Sciences & Research Institute for Agriculture and Environment , University of Agricultural Sciences and Veterinary Medicine "Ion Ionescu de la Brad" , 3 Mihail Sadoveanu Alley , 700490 Iasi , Romania
| | - Kuniaki Sugiura
- Graduate School of Integrated Science and Technology , Shizuoka University , 3-5-1, Johoku , Naka-ku, Hamamatsu 432-8561 , Japan
| | - Dumitru Luca
- Department of Physics , "Alexandru Ioan Cuza" University , 11, Carol I Blvd. , 700506 Iasi , Romania
| | - Masaaki Nagatsu
- Research Institute of Electronics , Shizuoka University , 3-5-1, Johoku , Naka-ku, Hamamatsu 432-8011 , Japan
- Graduate School of Integrated Science and Technology , Shizuoka University , 3-5-1, Johoku , Naka-ku, Hamamatsu 432-8561 , Japan
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14
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Wei J, Ji G, Zhang C, Yan L, Luo Q, Wang C, Chen Q, Yang J, Chen L, Ma CQ. Silane-Capped ZnO Nanoparticles for Use as the Electron Transport Layer in Inverted Organic Solar Cells. ACS NANO 2018; 12:5518-5529. [PMID: 29883102 DOI: 10.1021/acsnano.8b01178] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Zinc oxide (ZnO) nanoparticles are widely used as electron- transport layer (ETL) materials in organic solar cells and are considered to be the candidate with the most potential for ETLs in roll-to-roll (R2R)-printed photovoltaics. However, the tendency of the nanoparticles to aggregate reduces the stability of the metal oxide inks and creates many surface defects, which is a major barrier to its printing application. With the aim of improving the stability of metal oxide nanoparticle dispersions and suppressing the formation of surface defects, we prepared 3-aminopropyltrimethoxysilane (APTMS)-capped ZnO (ZnO@APTMS) nanoparticles through surface ligand exchange. The ZnO@APTMS nanoparticles exhibited excellent dispersibility in ethanol, an environmentally friendly solvent, and remained stable in air for at least one year without any aggregation. The capping of the ZnO nanoparticles with APTMS also reduced the number of surface-adsorbed oxygen defects, improved the charge transfer efficiency, and suppressed the light-soaking effect. The thickness of the ZnO@APTMS ETL could reach 100 nm without an obvious decrease in the performance. Large-area APTMS-modified ZnO films were successfully fabricated through roll-to-roll microgravure printing and exhibited good performance in flexible organic solar cells. This work demonstrated the distinct advantages of this ZnO@APTMS ETL as a potential buffer layer for printed organic electronics.
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Affiliation(s)
- Junfeng Wei
- Printable Electronics Research Center (SINANO) , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Collaborative Innovation Center of Suzhou Nano Science and Technology , Suzhou , 215123 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing , 100049 , People's Republic of China
| | - Guoqi Ji
- Printable Electronics Research Center (SINANO) , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Collaborative Innovation Center of Suzhou Nano Science and Technology , Suzhou , 215123 , People's Republic of China
| | - Chujun Zhang
- Hunan Key Laboratory for Super Microstructure and Ultrafast Process, School of Physics and Electronics , Central South University , Changsha , 410083 , Hunan , People's Republic of China
| | - Lingpeng Yan
- Printable Electronics Research Center (SINANO) , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Collaborative Innovation Center of Suzhou Nano Science and Technology , Suzhou , 215123 , People's Republic of China
| | - Qun Luo
- Printable Electronics Research Center (SINANO) , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Collaborative Innovation Center of Suzhou Nano Science and Technology , Suzhou , 215123 , People's Republic of China
| | - Cheng Wang
- i-lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou , 215123 , People's Republic of China
| | - Qi Chen
- i-lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou , 215123 , People's Republic of China
| | - Junliang Yang
- Hunan Key Laboratory for Super Microstructure and Ultrafast Process, School of Physics and Electronics , Central South University , Changsha , 410083 , Hunan , People's Republic of China
| | - Liwei Chen
- i-lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou , 215123 , People's Republic of China
| | - Chang-Qi Ma
- Printable Electronics Research Center (SINANO) , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Collaborative Innovation Center of Suzhou Nano Science and Technology , Suzhou , 215123 , People's Republic of China
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15
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Altin A, Krzywiecki M, Sarfraz A, Toparli C, Laska C, Kerger P, Zeradjanin A, Mayrhofer KJJ, Rohwerder M, Erbe A. Cyclodextrin inhibits zinc corrosion by destabilizing point defect formation in the oxide layer. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2018; 9:936-944. [PMID: 29600153 PMCID: PMC5870151 DOI: 10.3762/bjnano.9.86] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 02/12/2018] [Indexed: 06/08/2023]
Abstract
Corrosion inhibitors are added in low concentrations to corrosive solutions for reducing the corrosion rate of a metallic material. Their mechanism of action is typically the blocking of free metal surface by adsorption, thus slowing down dissolution. This work uses electrochemical impedance spectroscopy to show the cyclic oligosaccharide β-cyclodextrin (β-CD) to inhibit corrosion of zinc in 0.1M chloride with an inhibition efficiency of up to 85%. Only a monomolecular adsorption layer of β-CD is present on the surface of the oxide covered metal, with Raman spectra of the interface proving the adsorption of the intact β-CD. Angular dependent X-ray photoelectron spectroscopy (ADXPS) and ultraviolet photoelectron spectroscopy (UPS) were used to extract a band-like diagram of the β-CD/ZnO interface, showing a large energy level shift at the interface, closely resembling the energy level alignment in an n-p junction. The energy level shift is too large to permit further electron transfer through the layer, inhibiting corrosion. Adsorption hence changes the defect density in the protecting ZnO layer. This mechanism of corrosion inhibition shows that affecting the defect chemistry of passivating films by molecular inhibitors maybe a viable strategy to control corrosion of metals.
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Affiliation(s)
- Abdulrahman Altin
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Str. 1, 40237 Düsseldorf, Germany
| | - Maciej Krzywiecki
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Str. 1, 40237 Düsseldorf, Germany
- Institute of Physics–CSE, Silesian University of Technology, Konarskiego 22B, 44-100 Gliwice, Poland
| | - Adnan Sarfraz
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Str. 1, 40237 Düsseldorf, Germany
| | - Cigdem Toparli
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Str. 1, 40237 Düsseldorf, Germany
| | - Claudius Laska
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Str. 1, 40237 Düsseldorf, Germany
| | - Philipp Kerger
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Str. 1, 40237 Düsseldorf, Germany
| | - Aleksandar Zeradjanin
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Str. 1, 40237 Düsseldorf, Germany
- Forschungszentrum Jülich GmbH, Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Egerlandstraße 3, 91058 Erlangen, Germany
| | - Karl J J Mayrhofer
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Str. 1, 40237 Düsseldorf, Germany
- Forschungszentrum Jülich GmbH, Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Egerlandstraße 3, 91058 Erlangen, Germany
| | - Michael Rohwerder
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Str. 1, 40237 Düsseldorf, Germany
| | - Andreas Erbe
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Str. 1, 40237 Düsseldorf, Germany
- Department of Materials Science and Engineering, NTNU, Norwegian University of Science and Technology, 7491 Trondheim, Norway
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16
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Kwoka M, Krzywiecki M. Impact of air exposure and annealing on the chemical and electronic properties of the surface of SnO 2 nanolayers deposited by rheotaxial growth and vacuum oxidation. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2017; 8:514-521. [PMID: 28382240 PMCID: PMC5355902 DOI: 10.3762/bjnano.8.55] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 02/07/2017] [Indexed: 05/05/2023]
Abstract
In this paper the SnO2 nanolayers were deposited by rheotaxial growth and vacuum oxidation (RGVO) and analyzed for the susceptibility to ambient-air exposure and the subsequent recovery under vacuum conditions. Particularly the surface chemistry of the layers, stoichiometry and level of carbon contamination, was scrutinized by X-ray photoelectron spectroscopy (XPS). The layers were tested i) pristine, ii) after air exposure and iii) after UHV annealing to validate perspective recovery procedures of the sensing layers. XPS results showed that the pristine RGVO SnO2 nanolayers are of high purity with a ratio [O]/[Sn] = 1.62 and almost no carbon contamination. After air exposure the relative [O]/[Sn] concentration increased to 1.80 while maintaining a relatively low level of carbon contaminants. Subsequent UHV annealing led to a relative [O]/[Sn] concentration comparable to the pristine samples. The oxidation resulted in a variation of the distance between the valence band edge and the Fermi level energy. This was attributed to oxygen diffusion through the porous SnO2 surface as measured by atomic force microscopy.
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Affiliation(s)
- Monika Kwoka
- Institute of Electronics, Silesian University of Technology, Akademicka 16, 44-100 Gliwice, Poland
| | - Maciej Krzywiecki
- Institute of Physics – CSE, Silesian University of Technology, Konarskiego 22B, 44-100 Gliwice, Poland
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