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Žaimis U, Petronienė JJ, Dzedzickis A, Bučinskas V. Stretch Sensor: Development of Biodegradable Film. SENSORS (BASEL, SWITZERLAND) 2024; 24:683. [PMID: 38276377 PMCID: PMC10821183 DOI: 10.3390/s24020683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 01/11/2024] [Accepted: 01/19/2024] [Indexed: 01/27/2024]
Abstract
This article presents research on biodegradable stretch sensors produced using biological material. This sensor uses a piezoresistive effect to indicate stretch, which can be used for force measurement. In this work, an attempt was made to develop the composition of a sensitive material and to design a sensor. The biodegradable base was made from a κ-carrageenan compound mixed with Fe2O3 microparticles and glycerol. The influence of the weight fraction and iron oxide microparticles on the tensile strength and Young's modulus was experimentally investigated. Tensile test specimens consisted of 10-25% iron oxide microparticles of various sizes. The results showed that increasing the mass fraction of the reinforcement improved the Young's modulus compared to the pure sample and decreased the elongation percentage. The GF of the developed films varies from 0.67 to 10.47 depending on composition. In this paper, it was shown that the incorporation of appropriate amounts of Fe2O3 microparticles into κ-carrageenan can achieve dramatic improvements in mechanical properties, resulting in elongation of up to 10%. The developed sensors were experimentally tested, and their sensitivity, stability, and range were determined. Finally, conclusions were drawn on the results obtained.
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Affiliation(s)
- Uldis Žaimis
- Institute of Science and Innovative Technology, Liepaja University, LV-3401 Liepaja, Latvia
| | - Jūratė Jolanta Petronienė
- Department of Mechatronics, Robotics, and Digital Manufacturing, Vilnius Gediminas Technical University, LT-10105 Vilnius, Lithuania; (J.J.P.); (V.B.)
| | - Andrius Dzedzickis
- Department of Mechatronics, Robotics, and Digital Manufacturing, Vilnius Gediminas Technical University, LT-10105 Vilnius, Lithuania; (J.J.P.); (V.B.)
| | - Vytautas Bučinskas
- Department of Mechatronics, Robotics, and Digital Manufacturing, Vilnius Gediminas Technical University, LT-10105 Vilnius, Lithuania; (J.J.P.); (V.B.)
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Adhikari M, Saha D, Chattopadhyay D, Pal M. Improved Ethanol Sensing Performance of α-MnO 2 Nanorods at Room Temperature Enabled through PPy Embedding. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:12248-12259. [PMID: 37602682 DOI: 10.1021/acs.langmuir.3c01626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
Ethanol is a colorless, highly flammable, volatile organic compound and is a biomarker for fatty liver diseases. So, high-performance and reliable ethanol sensors are the need of the day for biomedical and environmental monitoring applications and drunken driving detection. In this work, we have reported a polypyrrole (PPy)-embedded α-MnO2 nanorod (NR)-based chemiresistive sensor for the selective detection of trace ethanol vapor at room temperature (25 °C). PPy-embedded α-MnO2 NR nanocomposites (MP25, MP50, and MP100) were synthesized by in situ chemical oxidative polymerization of pyrrole followed by mixing of α-MnO2 NR having different weight ratios. The prepared nanocomposites were characterized by various sophisticated instruments such as XRD, FTIR, Raman spectroscopy, BET, FESEM, TEM, EDX, UV-vis spectroscopy, and current-voltage (I-V) measurement. The as-prepared sensor, namely, PPy-embedded α-MnO2 nanorod (MP50), shows the highest response to ethanol vapor with a detection lower limit of 1 ppm at room temperature with rapid response (∼2.39 s) and recovery (∼37.08 s) times associated with at least 60 days stability, excellent selectivity, good repeatability, and reproducibility. The formation of a p-n heterojunction and transfer of charge carriers between PPy and MnO2 nanoparticles are attributed to the enhancement of sensing performance. Thus, the prepared sensor could be potentially applicable to detect ethanol content in alcoholic beverages, diagnose liver disease from exhale breath analysis, and drunken driving detection.
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Affiliation(s)
- Monalisa Adhikari
- Department of Polymer Science and Technology, University of Calcutta, Kolkata 700073, India
| | - Debdulal Saha
- CSIR-Central Glass and Ceramic Research Institute, Kolkata 700032, India
| | - Dipankar Chattopadhyay
- Department of Polymer Science and Technology, University of Calcutta, Kolkata 700073, India
| | - Mrinal Pal
- CSIR-Central Glass and Ceramic Research Institute, Kolkata 700032, India
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Kang LL, Xing C, Jin YX, Xie LX, Li ZF, Li G. Two Dual-Function Zr/Hf-MOFs as High-Performance Proton Conductors and Amines Impedance Sensors. Inorg Chem 2023; 62:3036-3046. [PMID: 36757379 DOI: 10.1021/acs.inorgchem.2c03758] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
In the field of sensing, finding high-performance amine molecular sensors has always been a challenging topic. Here, two highly stable 3D MOFs DUT-67(Hf) and DUT-67(Zr) with large specific surface areas and hierarchical pore structures were conveniently synthesized by solvothermal reaction of ZrCl4/HfCl4 with a simple organic ligand, 2,5-thiophene dicarboxylic acid (H2TDC) according to literature approach. By analyzing TGA data, it was found that the two MOFs have defects (unsaturated metal sites) that can interact with substrates (H2O and volatile amine gas), which is conducive to proton transfer and amine compound identification. Further experiments showed that at 100 °C and 98% relative humidity (RH), the optimized proton conductivities of DUT-67(Zr) and DUT-67(Hf) can reach the high values of 2.98 × 10-3 and 3.86 × 10-3 S cm-1, respectively. Moreover, the room temperature sensing characteristics of MOFs' to amine gases were evaluated at 68, 85 and 98% RHs, respectively. Impressively, the prepared MOFs-based sensors have the desired stability and higher sensitivity to amines. Under 68% RH, the detection limits of DUT-67(Zr) or DUT-67(Hf) for volatile amine gases were 0.5 (methylamine), 0.5 (dimethylamine) and 1 ppm (trimethylamine), and 0.5 (methylamine), 0.5 (dimethylamine) and 0.5 ppm (trimethylamine), respectively. As far as we know, this is the best performance of ammonia room temperature sensors in the past proton-conductive MOF sensors.
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Affiliation(s)
- Lu-Lu Kang
- College of Chemistry and Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan 450001, PR China
| | - Chen Xing
- College of Chemistry and Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan 450001, PR China
| | - Yi-Xin Jin
- College of Chemistry and Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan 450001, PR China
| | - Li-Xia Xie
- College of Science, Henan Agricultural University, Zhengzhou, Henan 450002, PR China
| | - Zi-Feng Li
- College of Chemistry and Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan 450001, PR China
| | - Gang Li
- College of Chemistry and Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan 450001, PR China
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Ppb-level butanone sensor based on porous spherical NiO and the influence of silver modification. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2021. [DOI: 10.1016/j.cjac.2021.10.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Huang Y, Chen M, Xie A, Wang Y, Xu X. Recent Advances in Design and Fabrication of Nanocomposites for Electromagnetic Wave Shielding and Absorbing. MATERIALS (BASEL, SWITZERLAND) 2021; 14:4148. [PMID: 34361341 PMCID: PMC8347516 DOI: 10.3390/ma14154148] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/09/2021] [Accepted: 07/12/2021] [Indexed: 01/14/2023]
Abstract
Electromagnetic (EM) pollution has raised significant concerns to human health with the rapid development of electronic devices and wireless information technologies, and created adverse effects on the normal operation of the sensitive electronic apparatus. Notably, the EM absorbers with either dielectric loss or magnetic loss can hardly perform efficient absorption, which thereby limits their applications in the coming 5G era. In such a context, the hotspot materials reported recently, such as graphene, MXenes, and metal-organic frameworks (MOF)-derived materials, etc., have been explored and applied as EM absorbing and shielding materials owing to their tunable heterostructures, as well as the facile incorporation of both dielectric and magnetic components. In this review, we deliver a comprehensive literature survey according to the types of EM absorbing and shielding materials, and interpret the connectivity and regularity among them on the basis of absorbing mechanisms and microstructures. Finally, the challenges and the future prospects of the EM dissipating materials are also discussed accordingly.
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Affiliation(s)
- Yang Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China; (M.C.); (Y.W.); (X.X.)
| | - Ming Chen
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China; (M.C.); (Y.W.); (X.X.)
| | - Aming Xie
- School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yu Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China; (M.C.); (Y.W.); (X.X.)
| | - Xiao Xu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China; (M.C.); (Y.W.); (X.X.)
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Zheng J, Hou H, Fu H, Gao L, Liu H. Size-controlled synthesis of porous ZnSnO 3 nanocubes for improving formaldehyde gas sensitivity. RSC Adv 2021; 11:20268-20277. [PMID: 35479928 PMCID: PMC9033964 DOI: 10.1039/d1ra01852c] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 05/07/2021] [Indexed: 12/02/2022] Open
Abstract
During the detection of formaldehyde, sensitivity and selectivity is still a challenging issue for most reported gas sensors. Herein, an alternative formaldehyde chemosensor that is based on porous ZnSnO3 nanocubes was synthesized. The products are characterized by XRD, SEM, TEM (HRTEM), XPS, PL measurements and N2 adsorption–desorption. The size of the ZnSnO3 nanocubes is about 100 nm and the corresponding specific surface area is 70.001 m2 g−1. A gas sensor based on these porous ZnSnO3 nanocubes shows high sensitivity and selectivity to formaldehyde. The porous ZnSnO3 nanocube sensor could detect 50 ppm formaldehyde at about 210 °C with a response value of 21.2, which is twice as much as ethanol, and 3 times that of the other five gases. Moreover, the response of the sensor had an acceptable change after a pulse test for 90 days. The sensor can detect formaldehyde with a minimum concentration of 1 ppm, and it has a good linear relationship between 1–50 ppm formaldehyde. The gas sensor based on porous ZnSnO3 nanocubes can be utilized as a promising candidate for a practical detector of formaldehyde due to its high gas response and excellent selectivity. The size of the ZnSnO3 nanocubes is about 100 nm with the corresponding specific surface area of 70.001 m2 g−1. A gas sensor based on porous ZnSnO3 nanocubes shows high sensitivity and selectivity to formaldehyde.![]()
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Affiliation(s)
- Jiaoling Zheng
- School of Materials and Chemical Engineering, Chuzhou University Chuzhou 239000 China
| | - Huanhuan Hou
- School of Materials and Chemical Engineering, Chuzhou University Chuzhou 239000 China .,School of Chemistry and Chemical Engineering, Anhui University of Technology Ma'anshan 243000 China
| | - Hao Fu
- Department of Science and Technology, Shiyuan College of Nanning Normal University Nanning 530226 China .,School of Chemistry & Chemical Engineering, Guangxi University Nanning 530004 China
| | - Liping Gao
- School of Materials and Chemical Engineering, Chuzhou University Chuzhou 239000 China
| | - Hongjie Liu
- Department of Science and Technology, Shiyuan College of Nanning Normal University Nanning 530226 China
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Jin Q, Wen W, Zheng S, Jiang R, Wu JM. Branching TiO 2nanowire arrays for enhanced ethanol sensing. NANOTECHNOLOGY 2021; 32:295501. [PMID: 33827055 DOI: 10.1088/1361-6528/abf5a0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 04/06/2021] [Indexed: 05/28/2023]
Abstract
Nanostructure modulation is effective to achieve high performance TiO2-based gas sensors. We herein report a wet-chemistry route to precipitate directly branched TiO2nanowire arrays on alumina tubes for gas sensing applications. The optimized branched TiO2nanowire array exhibits a response of 9.2 towards 100 ppm ethanol; whilst those of the pristine TiO2nanowire array and the branched TiO2nanowire powders randomly distributed are 5.1 and 3.1, respectively. The enhanced response is mainly contributed to the unique porous architecture and quasi-aligned nanostructure, which provide more active sites and also favor gas migration. Phase junctions between the backbone and the branch of the branched TiO2nanowire arrays help the resistance modulation as a result of potential barriers. The facile precipitation of quasi-aligned arrays of branched TiO2nanowires, which arein situgrown on ceramic tubes, thus provides a new economical synthetic route to TiO2-based sensors with excellent properties.
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Affiliation(s)
- Qi Jin
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
| | - Wei Wen
- College of Mechanical and Electrical Engineering, Hainan University, Haikou 570228, People's Republic of China
| | - Shilie Zheng
- College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
| | - Rui Jiang
- Inner Mongolia Metallic Materials Research Institute, Ningbo 315103, People's Republic of China
| | - Jin-Ming Wu
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
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Chen D, Shen Y, Wang S, Chen X, Cao X, Wang Z, Li Y. Efficient removal of various coexisting organic pollutants in water based on β-cyclodextrin polymer modified flower-like Fe 3O 4 particles. J Colloid Interface Sci 2021; 589:217-228. [PMID: 33460853 DOI: 10.1016/j.jcis.2020.12.109] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/25/2020] [Accepted: 12/27/2020] [Indexed: 01/17/2023]
Abstract
HYPOTHESIS The construction of porous β-cyclodextrin polymer (β-CDP) modified flower-like Fe3O4 particles (CDP@Fe3O4) is expected to remove various organic pollutants from water, based on the larger specific surface area of flower-like Fe3O4 particles and the active sites provided by β-CDP. With the help of various noncovalent interactions, the removal ability of CDP@Fe3O4 for various water-soluble and water-insoluble organic pollutants were systematically studied. EXPERIMENTS CDP@Fe3O4 were successfully synthesized and applied for the simultaneous removal of various organic pollutants with different electrical properties, structure and hydrophobicity. Adsorption efficiency, adsorption process, adsorption mechanism and the reusability of CDP@Fe3O4 for single pollutant and mixed pollutants were comprehensively investigated. FINDINGS CDP@Fe3O4 exhibited excellent adsorption capabilities for various pollutants. Importantly, when these pollutants were coexisting, CDP@Fe3O4 still maintained a comparable removal ability for various pollutants. Efficient removal of organic pollutants was attributed to varieties of noncovalent interactions between organic pollutants and CDP@Fe3O4, including hydrophobic interactions, hydrogen bonds, π-π and electrostatic interactions. These results revealed that the excellent adsorption ability and convenient regeneration make CDP@Fe3O4 being a potential candidate in various complex organic wastewater purification.
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Affiliation(s)
- Dafan Chen
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, No. 238 Songling Road, Qingdao 266100, PR China; School of Chemistry and Chemical Engineering, Qilu Normal University, Jinan 250200, PR China
| | - Yun Shen
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, No. 238 Songling Road, Qingdao 266100, PR China
| | - Shuangjia Wang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, No. 238 Songling Road, Qingdao 266100, PR China
| | - Xiuping Chen
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, No. 238 Songling Road, Qingdao 266100, PR China
| | - Xiaorong Cao
- School of Chemistry and Chemical Engineering, Qilu Normal University, Jinan 250200, PR China
| | - Zhining Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China
| | - Yiming Li
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, No. 238 Songling Road, Qingdao 266100, PR China.
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Feng Li, Ma Q, Yu W, Dong X, Wang J, Liu G. Synthesis and Ethanol Sensing Properties of SnO2 Nanoparticles in SnO2 Nanotubes Composite. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2020. [DOI: 10.1134/s0036024420110242] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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10
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Sun J, Xia W, Zheng Q, Zeng X, Liu W, Liu G, Wang P. Increased Active Sites on Irregular Morphological α-Fe 2O 3 Nanorods for Enhanced Photoelectrochemical Performance. ACS OMEGA 2020; 5:12339-12345. [PMID: 32548417 PMCID: PMC7271369 DOI: 10.1021/acsomega.0c01072] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 05/04/2020] [Indexed: 06/11/2023]
Abstract
Uniform rectangular α-Fe2O3 nanorods (R-Fe2O3) and irregular α-Fe2O3 nanorods (D-Fe2O3) with a random size vertically aligned on fluorine-doped tin oxide were prepared with a facile one-step hydrothermal procedure. X-ray diffraction (XRD) measurements and Raman spectra confirm that the obtained samples are α-Fe2O3, and XRD patterns show that D-Fe2O3 has two extra (012) and (104) planes of hematite in addition to the identical peaks to R-Fe2O3. The carrier density of the D-Fe2O3 sample is four times larger than that of R-Fe2O3. Finally, the D-Fe2O3 photoelectrode exhibited a better photoelectrochemical (PEC) performance under visible illumination than that of R-Fe2O3, achieving the photocurrent density of 0.15 mA cm-2 at 1.23 V versus reversible hydrogen electrode. In addition, incident photo-to-current conversion efficiency of D-Fe2O3 is nearly three times larger than that of R-Fe2O3. Hence, the improved PEC performance of D-Fe2O3 can be ascribed to higher carrier density resulting from the amount of oxygen vacancies and more activated exposed surface facets.
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Affiliation(s)
- Jiawei Sun
- College
of Physics Science and Technology & Institute of Optoelectronic
Technology, Yangzhou University, Yangzhou 225002, P. R. China
| | - Weiwei Xia
- College
of Physics Science and Technology & Institute of Optoelectronic
Technology, Yangzhou University, Yangzhou 225002, P. R. China
| | - Qian Zheng
- College
of Physics Science and Technology & Institute of Optoelectronic
Technology, Yangzhou University, Yangzhou 225002, P. R. China
| | - Xianghua Zeng
- College
of Physics Science and Technology & Institute of Optoelectronic
Technology, Yangzhou University, Yangzhou 225002, P. R. China
- College
of Electrical, Energy and Power Engineering, Yangzhou University, Yangzhou 225127, P. R. China
| | - Wei Liu
- State
Key Laboratory of Bioelectronics, School of Biological Sciences &
Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Gang Liu
- College
of Physics Science and Technology & Institute of Optoelectronic
Technology, Yangzhou University, Yangzhou 225002, P. R. China
| | - Pengdi Wang
- College
of Physics Science and Technology & Institute of Optoelectronic
Technology, Yangzhou University, Yangzhou 225002, P. R. China
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Lv F, Gong Y, Cao Y, Deng Y, Liang S, Tian X, Gu H, Yin JJ. A convenient detection system consisting of efficient Au@PtRu nanozymes and alcohol oxidase for highly sensitive alcohol biosensing. NANOSCALE ADVANCES 2020; 2:1583-1589. [PMID: 36132318 PMCID: PMC9416945 DOI: 10.1039/d0na00002g] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 02/26/2020] [Indexed: 06/12/2023]
Abstract
Effective alcohol detection represents a substantial concern not only in the context of personal and automobile safety but also in clinical settings as alcohol is a contributing factor in a wide range of health complications including various types of liver cirrhoses, strokes, and cardiovascular diseases. Recently, many kinds of nanomaterials with enzyme-like properties have been widely used as biosensors. Herein, we have developed a convenient detection method that combines Au@PtRu nanozymes and alcohol oxidase (AOx). We found that the Au@PtRu nanorods exhibited peroxidase-like catalytic activity that was much higher than the catalytic activities of the Au and Au@Pt nanorods. The Au@PtRu nanorod-catalyzed generation of hydroxyl radicals in the presence of H2O2 was used to develop an alcohol sensor by monitoring the H2O2 formed by the oxidation of alcohol to acetaldehyde in the presence of AOx. When coupled with AOx, alcohol was detected down to 23.8 μM in a buffer solution for biological assays. Notably, alcohol was successfully detected in mouse blood samples with results comparable to that from commercial alcohol meters. These results highlight the potential of the Au@PtRu nanorods with peroxidase-like activity for alcohol detection, which opens up a new avenue for nanozyme development for biomedical applications.
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Affiliation(s)
- Feng Lv
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Collaborative Innovation Center for New-type Urbanization and Social Governance of Jiangsu Province, Soochow University Suzhou 215123 P. R. China
| | - Yuzhu Gong
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Collaborative Innovation Center for New-type Urbanization and Social Governance of Jiangsu Province, Soochow University Suzhou 215123 P. R. China
| | - Yingying Cao
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Collaborative Innovation Center for New-type Urbanization and Social Governance of Jiangsu Province, Soochow University Suzhou 215123 P. R. China
| | - Yaoyao Deng
- School of Chemical Engineering and Materials, Changzhou Institute of Technology Changzhou 213032 P. R. China
| | - Shufeng Liang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University Suzhou 215123 China
- Department of Molecular Biology, Shanxi Cancer Hospital and Institute, Affiliated Hospital of Shanxi Medical University Taiyuan Shanxi 030013 China
| | - Xin Tian
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University Suzhou 215123 China
| | - Hongwei Gu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Collaborative Innovation Center for New-type Urbanization and Social Governance of Jiangsu Province, Soochow University Suzhou 215123 P. R. China
| | - Jun-Jie Yin
- Division of Analytical Chemistry, Office of Regulatory Science, Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration College Park Maryland 20740 USA
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Chen X, Zhang Y, Li C, Li C, Zeng T, Wan Q, Li Y, Ke Q, Yang N. Nanointerfaces of expanded graphite and Fe2O3 nanomaterials for electrochemical monitoring of multiple organic pollutants. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135118] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Wang F, Song LX, Teng Y, Xia J, Xu ZY, Wang WP. Synthesis, structure, magnetism and photocatalysis of α-Fe 2O 3 nanosnowflakes. RSC Adv 2019; 9:35372-35383. [PMID: 35528059 PMCID: PMC9074714 DOI: 10.1039/c9ra07490b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 10/22/2019] [Indexed: 11/21/2022] Open
Abstract
In this work, a simple one-step hydrothermal method was developed to synthesize high-quality α-Fe2O3 nanoparticles with a snowflake-like microstructure. First, a series of binary supramolecular aggregates were prepared by a non-covalent combination between a polymer such as polyvinylpyrrolidone (PVP) and a complex such as potassium ferrocyanide (PF). Then, the aggregates were used as the precursors of the one-step hydrothermal reactions. The snowflake-like nanostructure has six-fold symmetry as a whole, and each petal is symmetric. This synthesis method has the characteristics of simplicity, rapidity, reliance, and high yield, and can be used for creating high-quality α-Fe2O3 nanoparticles. Moreover, our results show that the molar ratio of PVP to PF, reaction time and temperature play important roles in the generation of a complete snowflake structure from different angles. Also, the snowflake-like α-Fe2O3 nanostructure exhibits a much higher coercivity (2997 Oe) compared to those reported by others, suggesting a strong hysteresis behaviour, which promises potential applications in memory devices, and other fields. Further, the α-Fe2O3 nanosnowflakes show a much higher photocatalytic degradation activity for cationic organic dyes such as crystal violet, rhodamine 6G than for anionic dyes such as methyl orange. A possible photocatalytic mechanism was proposed for explaining the selectivity of the photocatalytic oxidation reaction of organic dyes. We believe that this study provides a direct link among coordination compounds of transition metals, their supramolecular aggregates with polymers, and controlled hydrothermal synthesis of high-quality inorganic metal oxide nanomaterials.
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Affiliation(s)
- Fang Wang
- Department of Chemistry, University of Science and Technology of China Jin Zhai Road 96 Hefei 230026 P. R. China
| | - Le Xin Song
- Department of Chemistry, University of Science and Technology of China Jin Zhai Road 96 Hefei 230026 P. R. China
- National Synchrotron Radiation Laboratory, University of Science and Technology of China Hefei 230026 P. R. China
| | - Yue Teng
- State Grid Anhui Electric Power Research Institute Zi Yun Road 299 Hefei 230601 P. R. China
| | - Juan Xia
- Department of Chemistry, Fuyang Normal University Qing He Road 100 Fuyang 236037 P. R. China
| | - Zhe Yuan Xu
- Department of Chemistry, University of Science and Technology of China Jin Zhai Road 96 Hefei 230026 P. R. China
| | - Wei Ping Wang
- Department of Chemistry, University of Science and Technology of China Jin Zhai Road 96 Hefei 230026 P. R. China
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Akia M, Mkhoyan KA, Lozano K. Synthesis of multiwall α-Fe2O3 hollow fibers via a centrifugal spinning technique. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 102:552-557. [DOI: 10.1016/j.msec.2019.04.085] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 04/17/2019] [Accepted: 04/25/2019] [Indexed: 10/26/2022]
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15
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Lu S, Hu X, Zheng H, Qiu J, Tian R, Quan W, Min X, Ji P, Hu Y, Cheng S, Du W, Chen X, Cui B, Wang X, Zhang W. Highly Selective, ppb-Level Xylene Gas Detection by Sn 2+-Doped NiO Flower-Like Microspheres Prepared by a One-Step Hydrothermal Method. SENSORS 2019; 19:s19132958. [PMID: 31277489 PMCID: PMC6651709 DOI: 10.3390/s19132958] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 06/21/2019] [Accepted: 06/25/2019] [Indexed: 11/20/2022]
Abstract
Detecting xylene gas is an important means of avoiding human harm from gas poisoning. A precise measurement demands that the gas sensor used must have high sensitivity, high selectivity, and low working temperature. To meet these requirements, in this study, Sn2+-doped NiO flower-like microspheres (SNM) with different amounts of Sn2+ synthesized by a one-step hydrothermal process were investigated. The responses of gas sensors based on different Sn2+-doped NiO materials for various targeting gases were fully characterized. It was found that all of the synthesized materials exhibited the best gas response at a working temperature of 180 degrees, which was much lower than the previously reported working temperature range of 300–500 degrees. When exposed to 10 ppm xylene, the 8 at% Sn2+-doped NiO sensor (mol ratio) exhibited the highest response, with a value of 30 (Rg/Ra). More significantly, the detection limit of the 8 at% Sn2+-doped NiO sensor for xylene is down in the ppb level. The Sn2+-doped NiO material also exhibits excellent selectivity for other gases with long-term stability and repeatability. The significant improvement in the response to xylene can theoretically be attributed to a decrease in the intrinsic hole carrier concentration, higher amounts of adsorbed oxygen and active sites.
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Affiliation(s)
- Shaohe Lu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, No. 5 XinMofan Road, Nanjing 210009, China
| | - Xuefeng Hu
- School of Instrument Science and Opto-Electronics Engineering and Research Center for Sensor Science and Technology, Hefei University of Technology, No. 193 Tunxi Road, Hefei 230009, China
| | - Hua Zheng
- School of Electrical Engineering & Intelligentization, Dongguan University of Technology, No. 1 Daxue Rd, Dongguan 523808, China
| | - Junwen Qiu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, No. 5 XinMofan Road, Nanjing 210009, China
| | - Renbing Tian
- School of Electrical Engineering & Intelligentization, Dongguan University of Technology, No. 1 Daxue Rd, Dongguan 523808, China
| | - Wenjing Quan
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, No. 5 XinMofan Road, Nanjing 210009, China
| | - Xinjie Min
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, No. 5 XinMofan Road, Nanjing 210009, China
| | - Peng Ji
- School of Electrical Engineering & Intelligentization, Dongguan University of Technology, No. 1 Daxue Rd, Dongguan 523808, China
| | - Yewei Hu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, No. 5 XinMofan Road, Nanjing 210009, China
| | - Suishi Cheng
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, No. 5 XinMofan Road, Nanjing 210009, China
| | - Wei Du
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, No. 5 XinMofan Road, Nanjing 210009, China
| | - Xiaoqiang Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, No. 5 XinMofan Road, Nanjing 210009, China
| | - Beiliang Cui
- Network Information Center, Nanjing Tech University, No. 5 XinMofan Road, Nanjing 210009, China.
| | - Xiaorong Wang
- College of Electrical Engineering and Control Science, Nanjing Tech University, No. 5 XinMofan Road, Nanjing 210009, China.
| | - Wei Zhang
- School of Instrument Science and Opto-Electronics Engineering and Research Center for Sensor Science and Technology, Hefei University of Technology, No. 193 Tunxi Road, Hefei 230009, China.
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16
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Wang B, Yu J, Li X, Yin J, Chen M. Synthesis and high formaldehyde sensing properties of quasi two-dimensional mesoporous ZnSnO 3 nanomaterials. RSC Adv 2019; 9:14809-14816. [PMID: 35516341 PMCID: PMC9064163 DOI: 10.1039/c9ra01593k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 05/08/2019] [Indexed: 01/13/2023] Open
Abstract
Quasi two-dimensional (2D) mesoporous ZnSnO3 nanomaterials (QTMZNS) were synthesized by a simple template-free hydrothermal method. The as-prepared products were characterized by TEM, SEM, XRD, TG/DTA, and FTIR. The results showed that the precursor was a mixture of Zn5(OH)6(CO3)2 and ZnSnO3 in the hydrothermal process, and the high purity QTMZNS were obtained by calcination combined with subsequent washing of 20 wt% NH4Cl solutions. A possible growth process and mechanism of the quasi 2D mesoporous structure was proposed. Gas sensing properties of QTMZNS were investigated, and the QTMZNS-based sensors exhibited excellent gas sensing properties. When exposed to 100 ppm formaldehyde vapors, the response sensitivity is 45.8, and the concentration limit can reach as low as 0.2 ppm of formaldehyde. All these results are much better than those reported so far, which will have great potential applications for practical air quality monitoring.
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Affiliation(s)
- Bingshan Wang
- Department of Bio-chemistry, Jingdezhen University Jingdezhen Jiangxi 333000 China
| | - Jinbao Yu
- Department of Bio-chemistry, Jingdezhen University Jingdezhen Jiangxi 333000 China
| | - Xiaohong Li
- National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen Ceramic Institute Jingdezhen Jiangxi 333000 China
| | - Jun Yin
- Department of Bio-chemistry, Jingdezhen University Jingdezhen Jiangxi 333000 China
| | - Meng Chen
- Department of Bio-chemistry, Jingdezhen University Jingdezhen Jiangxi 333000 China
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17
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NO₂ Selective Sensor Based on α-Fe₂O₃ Nanoparticles Synthesized via Hydrothermal Technique. SENSORS 2019; 19:s19010167. [PMID: 30621254 PMCID: PMC6338989 DOI: 10.3390/s19010167] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 12/25/2018] [Accepted: 12/28/2018] [Indexed: 11/16/2022]
Abstract
In the present work, hematite (α-Fe2O3) nanopowders were successfully prepared via a hydrothermal route. The morphology and microstructure of the synthesized nanopowders were analyzed by using scanning and transmission electron microscopy (SEM and TEM, respectively) analysis and X-ray diffraction. Gas sensing devices were fabricated by printing α-Fe2O3 nanopowders on alumina substrates provided with an interdigitated platinum electrode. To determine the sensor sensitivity toward NO2, one of the main environmental pollutants, tests with low concentrations of NO2 in air were carried out. The results of sensing tests performed at the operating temperature of 200 °C have shown that the α-Fe2O3 sensor exhibits p-type semiconductor behavior and high sensitivity. Further, the dynamics exhibited by the sensor are also very fast. Lastly, to determine the selectivity of the α-Fe2O3 sensor, it was tested toward different gases. The sensor displayed large selectivity to nitrogen dioxide, which can be attributed to larger affinity towards NO2 in comparison to other pollutant gases present in the environment, such as CO and CO2.
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18
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Zhang R, Liu D, Yang P. Morphology control of α-Fe2O3 towards super electrochemistry performance. RSC Adv 2019; 9:21947-21955. [PMID: 35518888 PMCID: PMC9066427 DOI: 10.1039/c9ra01675a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 07/05/2019] [Indexed: 11/21/2022] Open
Abstract
α-Fe2O3 with various morphologies including spindle, rod, tube, disk, and ring were synthesized through controlling the H2PO4− etching process. The concentrations of H2PO4− plays an important role in controlling the morphology change of the samples. Selected adsorption of H2PO4− ions resulted in anisotropic growth. In addition, the etching of H2PO4− occurred in the center of rods which resulted in tubal α-Fe2O3. Nanodiscs were created once the etching process occurred on the wall of the tube. The electrochemical test shows that disklike samples revealed excellent specific capacitance, rate capacity and cycling stability because of relative higher surface area and pore structure. For the CO catalytic oxidation properties, spindle samples exhibited super catalytic activity. α-Fe2O3 with various morphologies including spindle, rod, tube, disk, and ring were synthesized through controlling the H2PO4− etching process.![]()
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Affiliation(s)
- Ruili Zhang
- School of Material Science and Engineering
- University of Jinan
- Jinan
- P. R. China
| | - Debao Liu
- School of Material Science and Engineering
- University of Jinan
- Jinan
- P. R. China
| | - Ping Yang
- School of Material Science and Engineering
- University of Jinan
- Jinan
- P. R. China
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19
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Liu Y, Qian L, Zhao X, Wang J, Yao L, Xing X, Mo G, Cai Q, Chen Z, Wu Z. Synthesis and formation mechanism of self-assembled 3D flower-like Bi/γ-Fe 2O 3 composite particles. CrystEngComm 2019. [DOI: 10.1039/c9ce00326f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The self-assembled 3D flower-like Bi/γ-Fe2O3 composite particles consist of a Bi nanosphere core and a γ-Fe2O3 nanopetal shell.
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Affiliation(s)
- Yunpeng Liu
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing 100049
- China
- University of Chinese Academy of Sciences
| | - Lixiong Qian
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing 100049
- China
- University of Chinese Academy of Sciences
| | - Xiaoyi Zhao
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing 100049
- China
- University of Chinese Academy of Sciences
| | - Jiayi Wang
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing 100049
- China
- University of Chinese Academy of Sciences
| | - Lei Yao
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Beijing 100049
- China
| | - Xueqing Xing
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Beijing 100049
- China
| | - Guang Mo
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Beijing 100049
- China
| | - Quan Cai
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Beijing 100049
- China
| | - Zhongjun Chen
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Beijing 100049
- China
| | - Zhonghua Wu
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing 100049
- China
- University of Chinese Academy of Sciences
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20
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Hu J, Zhao X, Chen W, Chen Z. Enhanced Charge Transport and Increased Active Sites on α-Fe 2O 3 (110) Nanorod Surface Containing Oxygen Vacancies for Improved Solar Water Oxidation Performance. ACS OMEGA 2018; 3:14973-14980. [PMID: 31458163 PMCID: PMC6643919 DOI: 10.1021/acsomega.8b01195] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Accepted: 10/23/2018] [Indexed: 05/31/2023]
Abstract
The effect of oxygen vacancies (VO) on α-Fe2O3 (110) facet on the performance of photoelectrochemical (PEC) water splitting is researched by both experiments and density functional theory (DFT) calculations. The experimental results manifest that the enhancement in photocurrent density by the presence of VO is related with increased charge separation and charge-transfer efficiencies. The electrochemical analysis reveals that the sample with VO demonstrates an enhanced carrier density and reduced charge-transfer resistance. The results of DFT calculation indicate that the better charge separation is also contributed by the decrease of potential on the VO surface, which improves the hole transport from the bulk to the surface. The reduced charge-transfer resistance is owing to the greatly increased number of active sites. The current study provides important insight into the roles of VO on α-Fe2O3 photoanode, especially on its surface catalysis. The generated lesson is also helpful for the improvement of other PEC photoanode materials.
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Affiliation(s)
- Jun Hu
- School of Chemical
Engineering, Northwest University, Xi’an 710069, P. R. China
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Xin Zhao
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Wei Chen
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, Zhejiang Province, P. R. China
| | - Zhong Chen
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
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21
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Sun X, Liu Z, Zheng Z, Yu H, Zeng D. Improved adsorption of Congo red by nanostructured flower-like Fe(II)-Fe(III) hydroxy complex. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2018; 78:506-514. [PMID: 30207992 DOI: 10.2166/wst.2018.303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Amorphous Fe(II)-Fe(III) hydroxy complex with flower-like nanostructure was synthesized by ferric reduction using a microwave-assisted ethylene glycol approach. Here we investigated the correlation between its chemical composition and the removal rate for Congo red (CR) dye. The results showed that the amorphous complex had similar reduction and anion exchange capacities to the green rust. Due to the synergistic effect of attractive electrostatic interaction, anion exchange, ferrous redox and hydrogen bonding, the Fe(II)-Fe(III) hydroxy complex exhibited strong adsorption of CR with an estimated adsorption capacity up to 513 mg g-1. In contrast, the Fe(III) hydroxy complex had an adsorption capacity of 296 mg g-1 because of the predominant mechanism based on the electrostatic interaction. The present study provides a facile synthesis of nanostructured iron hydroxy complex, with superior performance in adsorbing CR.
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Affiliation(s)
- Xiaoyan Sun
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China E-mail:
| | - Zhongwu Liu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China E-mail:
| | - Zhigang Zheng
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China E-mail:
| | - Hongya Yu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China E-mail:
| | - Dechang Zeng
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China E-mail:
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22
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Lee SC, Jeong Y, Kim YJ, Kim H, Lee HU, Lee YC, Lee SM, Kim HJ, An HR, Ha MG, Lee GW, Lee YS, Lee G. Hierarchically three-dimensional (3D) nanotubular sea urchin-shaped iron oxide and its application in heavy metal removal and solar-induced photocatalytic degradation. JOURNAL OF HAZARDOUS MATERIALS 2018; 354:283-292. [PMID: 29778038 DOI: 10.1016/j.jhazmat.2018.04.048] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 04/06/2018] [Accepted: 04/20/2018] [Indexed: 06/08/2023]
Abstract
In this study, hierarchically three-dimensional (3D) nanotubular sea urchin-shaped iron oxide nanostructures (3D-Fe2O3) were synthesized by a facile and rapid ultrasound irradiation method. Additives, templates, inert gas atmosphere, pH regulation, and other complicated procedures were not required. Dense 3D-Fe2O3 with a relatively large Brunauer-Emmett-Teller (BET) surface area of 129.4 m2/g was synthesized within 23 min, and the BET surface area was further improved to 282.7 m2/g by a post heat-treatment process. In addition, this post processing led to phase changes from maghemite (γ phase) to hematite (α phase) Fe2O3. Subsequent characterization suggested that the growth mechanism of the 3D-Fe2O3 follows self-assembly and oriented attachment. The prepared 3D-Fe2O3 was applied to wastewater purification. Ultrasound-irradiated 3D-Fe2O3 can eliminate a As(V) and Cr(VI) from water with 25 times faster removal rate by using a one third smaller amount than commercial α-Fe2O3. This was attributed to the inter-particle pores and relatively positively charged surface of the nanostructure. In addition, post heat treatment on ultrasound-irradiated 3D-Fe2O3 significantly influenced the photocatalytic degradation of methylene blue and phenol, with a 25 times higher removal efficiency than that of commercial α-Fe2O3, because of both high BET surface area and good crystallization of the prepared samples.
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Affiliation(s)
- Soon Chang Lee
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Yesul Jeong
- Busan Center, Korea Basic Science Institute (KBSI), Busan 46742, Republic of Korea
| | - Youn Jung Kim
- Center for Research Facilities, Andong National University, Andong 36729, Republic of Korea
| | - Hyeran Kim
- Advanced Nano-surface Research Group, Korea Basic Science Institute (KBSI), Daejeon 34133, Republic of Korea
| | - Hyun Uk Lee
- Advanced Nano-surface Research Group, Korea Basic Science Institute (KBSI), Daejeon 34133, Republic of Korea.
| | - Young-Chul Lee
- Department of BioNano Technology, Gachon University, 1342 Seongnamdaero, Sujeong-gu, Seongnam-si, Gyeonggi-do 13120, Republic of Korea
| | - Sang Moon Lee
- Nano-Bio Electron Microscopy Research Group, Korea Basic Science Institute (KBSI), Daejeon 34133, Republic of Korea
| | - Hae Jin Kim
- Nano-Bio Electron Microscopy Research Group, Korea Basic Science Institute (KBSI), Daejeon 34133, Republic of Korea
| | - Ha-Rim An
- Advanced Nano-surface Research Group, Korea Basic Science Institute (KBSI), Daejeon 34133, Republic of Korea
| | - Myoung Gyu Ha
- Busan Center, Korea Basic Science Institute (KBSI), Busan 46742, Republic of Korea
| | - Go-Woon Lee
- R&D Platform Center, Korea Institute of Energy Research (KIER), Daejeon 34129, Republic of Korea
| | - Young-Seak Lee
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea.
| | - Gaehang Lee
- Division of Scientific Instrumentation, Korea Basic Science Institute (KBSI), Daejeon 34133, Republic of Korea.
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23
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Geng W, Ge S, He X, Zhang S, Gu J, Lai X, Wang H, Zhang Q. Volatile Organic Compound Gas-Sensing Properties of Bimodal Porous α-Fe 2O 3 with Ultrahigh Sensitivity and Fast Response. ACS APPLIED MATERIALS & INTERFACES 2018; 10:13702-13711. [PMID: 29621397 DOI: 10.1021/acsami.8b02435] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Porous solid with multimodal pore size distribution provides plenty of advantages including large specific surface area and superior mass transportation to achieve high gas-sensing performances. In this study, α-Fe2O3 nanoparticles with bimodal porous structures were prepared successfully through a nanocasting pathway, adopting the bicontinuous 3D cubic symmetry mesoporous silica KIT-6 as the hard template. Its structure and morphology were characterized by X-ray diffraction, nitrogen adsorption-desorption, transmission electron microscopy, and so on. Furthermore, the gas sensor fabricated from this material exhibited excellent gas-sensing performance to several volatile organic compounds (acetone, ethyl acetate, isopropyl alcohol, n-butanol, ethanol, and methanol), such as ultrahigh sensitivity, rapid response speed (less than 10 s) and recovery time, good reproducibility, as well as stability. These would be associated with the desirable pore structure of the material, facilitating the molecules diffusion toward the entire sensing surface, and providing more active sensing sites for analytical gas.
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Affiliation(s)
- Wangchang Geng
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Science , Northwestern Polytechnical University , Xi'an 710072 , People's Republic of China
| | - Shaobing Ge
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Science , Northwestern Polytechnical University , Xi'an 710072 , People's Republic of China
| | - Xiaowei He
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Science , Northwestern Polytechnical University , Xi'an 710072 , People's Republic of China
| | - Shan Zhang
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Science , Northwestern Polytechnical University , Xi'an 710072 , People's Republic of China
| | - Junwei Gu
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Science , Northwestern Polytechnical University , Xi'an 710072 , People's Republic of China
| | - Xiaoyong Lai
- Key Laboratory of Energy Resource and Chemical Engineering, State Key Laboratory Cultivation Base of Natural Gas Conversion, School of Chemistry and Chemical Engineering , Ningxia University , Yinchuan 750021 , People's Republic of China
| | - Hong Wang
- Department of Materials Science and Engineering, Key Laboratory of Materials Corrosion and Protection Sichuan Province , Sichuan University of Science and Engineering , Zigong 643000 , People's Republic of China
| | - Qiuyu Zhang
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Science , Northwestern Polytechnical University , Xi'an 710072 , People's Republic of China
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24
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Kong Y, Zhuang Y, Yu J, Han Z, Shi B. Structural study on PVA assisted self-assembled 3D hierarchical iron (hydr)oxides. CrystEngComm 2018. [DOI: 10.1039/c8ce00075a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Polymers with hydroxyl groups may have great influence on the formation process of metal oxides due to complexation.
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Affiliation(s)
- Yan Kong
- Key Laboratory of Drinking Water Science and Technology
- Research Center for Eco-Environmental Sciences
- Chinese Academy of Sciences
- Beijing
- China
| | - Yuan Zhuang
- Key Laboratory of Drinking Water Science and Technology
- Research Center for Eco-Environmental Sciences
- Chinese Academy of Sciences
- Beijing
- China
| | - Jianwei Yu
- Key Laboratory of Drinking Water Science and Technology
- Research Center for Eco-Environmental Sciences
- Chinese Academy of Sciences
- Beijing
- China
| | - Zhiyong Han
- College of Petrochemical Engineering
- Lanzhou University of Technology
- Lanzhou 730050
- China
| | - Baoyou Shi
- Key Laboratory of Drinking Water Science and Technology
- Research Center for Eco-Environmental Sciences
- Chinese Academy of Sciences
- Beijing
- China
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25
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Chen S, Hossain MN, Chen A. Significant Enhancement of the Photoelectrochemical Activity of CuWO4
by using a Cobalt Phosphate Nanoscale Thin Film. ChemElectroChem 2017. [DOI: 10.1002/celc.201700991] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shuai Chen
- Department of Chemistry; University of Guelph; 50 Stone Rd E, Guelph Ontario Canada N1G 2W1
- Department of Chemistry; Lakehead University; 955 Oliver road, Thunder Bay Ontario Canada P7B 5E1
| | - M. Nur Hossain
- Department of Chemistry; Lakehead University; 955 Oliver road, Thunder Bay Ontario Canada P7B 5E1
| | - Aicheng Chen
- Department of Chemistry; University of Guelph; 50 Stone Rd E, Guelph Ontario Canada N1G 2W1
- Department of Chemistry; Lakehead University; 955 Oliver road, Thunder Bay Ontario Canada P7B 5E1
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26
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Xue Z, Cheng Z, Xu J, Xiang Q, Wang X, Xu J. Controllable Evolution of Dual Defect Zn i and V O Associate-Rich ZnO Nanodishes with (0001) Exposed Facet and Its Multiple Sensitization Effect for Ethanol Detection. ACS APPLIED MATERIALS & INTERFACES 2017; 9:41559-41567. [PMID: 29116742 DOI: 10.1021/acsami.7b13370] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Building an effective way for finding the role of surface defects in gas sensing property remains a big challenge. In the present work, we synthesized the ZnO nanodishes (NDs) and first explored the formation process of rich electron donor surface defects by means of studying mechanism for the ZnO NDs synthesis. The test results revealed that ZnO-6, added by 6 mmol Zn powder, had the best gas-sensing properties with the excellent selectivity to ethanol than the others. Specially, the ZnO-6 sensor exhibited the best response (about 49) to 100 ppm ethanol at 230 °C among four as-synthesized samples, while noncustomized ZnO was only 28. It was mainly caused by the following two reasons: the exposure of target (0001) crystal facet and rich electron donor surface defects zinc interstitial (Zni) and oxygen vacancy (VO). As a guide, the formation process of surface defects was revealed by an ideal defect model. By the small-angle XRD and TEM patterns, we could conclude that ZnO NDs, changing stoichiometric ratio, increased the content of Zni by adding Zn powder, while excessive Zn powder promoted the growth of c axis of ZnO NDs in the self-assembly engineering. Besides, a depletion model has been provided to explain how the surface defects work on the sensors and the complex mechanism of gas sensing performance. These findings will develop the application of ZnO-based gas sensor in health and security.
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Affiliation(s)
- Zhenggang Xue
- NEST Lab, Department of Chemistry, College of Science, Shanghai University , Shanghai, 200444, China
| | - Zhixuan Cheng
- NEST Lab, Department of Chemistry, College of Science, Shanghai University , Shanghai, 200444, China
| | - Jin Xu
- School of Industrial Engineering, Purdue University , 315 North Grant Street, West Lafayette, Indiana 47907, United States
| | - Qun Xiang
- NEST Lab, Department of Chemistry, College of Science, Shanghai University , Shanghai, 200444, China
| | - Xiaohong Wang
- NEST Lab, Department of Chemistry, College of Science, Shanghai University , Shanghai, 200444, China
| | - Jiaqiang Xu
- NEST Lab, Department of Chemistry, College of Science, Shanghai University , Shanghai, 200444, China
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27
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Jeong HM, Jeong SY, Kim JH, Kim BY, Kim JS, Abdel-Hady F, Wazzan AA, Al-Turaif HA, Jang HW, Lee JH. Gas Selectivity Control in Co 3O 4 Sensor via Concurrent Tuning of Gas Reforming and Gas Filtering using Nanoscale Hetero-Overlayer of Catalytic Oxides. ACS APPLIED MATERIALS & INTERFACES 2017; 9:41397-41404. [PMID: 29112803 DOI: 10.1021/acsami.7b13998] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Co3O4 sensors with a nanoscale TiO2 or SnO2 catalytic overlayer were prepared by screen-printing of Co3O4 yolk-shell spheres and subsequent e-beam evaporation of TiO2 and SnO2. The Co3O4 sensors with 5 nm thick TiO2 and SnO2 overlayers showed high responses (resistance ratios) to 5 ppm xylene (14.5 and 28.8) and toluene (11.7 and 16.2) at 250 °C with negligible responses to interference gases such as ethanol, HCHO, CO, and benzene. In contrast, the pure Co3O4 sensor did not show remarkable selectivity toward any specific gas. The response and selectivity to methylbenzenes and ethanol could be systematically controlled by selecting the catalytic overlayer material, varying the overlayer thickness, and tuning the sensing temperature. The significant enhancement of the selectivity for xylene and toluene was attributed to the reforming of less reactive methylbenzenes into more reactive and smaller species and oxidative filtering of other interference gases, including ubiquitous ethanol. The concurrent control of the gas reforming and oxidative filtering processes using a nanoscale overlayer of catalytic oxides provides a new, general, and powerful tool for designing highly selective and sensitive oxide semiconductor gas sensors.
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Affiliation(s)
- Hyun-Mook Jeong
- Department of Materials Science and Engineering, Korea University , Seoul 02841, Republic of Korea
| | - Seong-Yong Jeong
- Department of Materials Science and Engineering, Korea University , Seoul 02841, Republic of Korea
| | - Jae-Hyeok Kim
- Department of Materials Science and Engineering, Korea University , Seoul 02841, Republic of Korea
| | - Bo-Young Kim
- Department of Materials Science and Engineering, Korea University , Seoul 02841, Republic of Korea
| | - Jun-Sik Kim
- Department of Materials Science and Engineering, Korea University , Seoul 02841, Republic of Korea
| | - Faissal Abdel-Hady
- Department of Chemical and Materials Engineering, King Abdulaziz University , Jeddah 21589, Saudi Arabia
| | - Abdulaziz A Wazzan
- Department of Chemical and Materials Engineering, King Abdulaziz University , Jeddah 21589, Saudi Arabia
| | - Hamad Ali Al-Turaif
- Department of Chemical and Materials Engineering, King Abdulaziz University , Jeddah 21589, Saudi Arabia
| | - Ho Won Jang
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University , Seoul 08826, Korea
| | - Jong-Heun Lee
- Department of Materials Science and Engineering, Korea University , Seoul 02841, Republic of Korea
- Department of Chemical and Materials Engineering, King Abdulaziz University , Jeddah 21589, Saudi Arabia
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28
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Ma Y, Yang J, Yuan Y, Zhao H, Shi Q, Zhang F, Pei C, Liu B, Yang H. Enhanced Gas Sensitivity and Sensing Mechanism of Network Structures Assembled from α-Fe 2O 3 Nanosheets with Exposed {104} Facets. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:8671-8678. [PMID: 28737405 DOI: 10.1021/acs.langmuir.7b00455] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Network structures assembled from α-Fe2O3 nanosheets with exposed {104} facets were successfully prepared by heating Fe(NO3)3 solution containing polyvinylpyrrolidone (PVP) in air. The α-Fe2O3 nanosheet-based network structures demonstrate significantly higher response to ethanol and triethylamine than α-Fe2O3 commercial powders. The excellent sensing performances can be ascribed to the exposed (104) facet terminated with Fe atoms. A concept of the unsaturated Fe atoms serving as the sensing reaction active sites is thus proposed, and the sensing reaction mechanism is described at the atomic and molecular level for the first time in detail. The concept of the surface metal atoms with dangling bonds serving as active sites can deepen understanding of the sensing and other catalytic reaction mechanisms and provides new insight into the design and fabrication of highly efficient sensing materials, catalysts, and photoelectronic devices.
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Affiliation(s)
- Yong Ma
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, Key Laboratory of Macromolecular Science of Shaanxi Province, School of Materials Science and Engineering, Shaanxi Normal University , Xi'an, 710119, China
| | - Juan Yang
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, Key Laboratory of Macromolecular Science of Shaanxi Province, School of Materials Science and Engineering, Shaanxi Normal University , Xi'an, 710119, China
| | - Yukun Yuan
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, Key Laboratory of Macromolecular Science of Shaanxi Province, School of Materials Science and Engineering, Shaanxi Normal University , Xi'an, 710119, China
| | - Hua Zhao
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, Key Laboratory of Macromolecular Science of Shaanxi Province, School of Materials Science and Engineering, Shaanxi Normal University , Xi'an, 710119, China
| | - Qian Shi
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, Key Laboratory of Macromolecular Science of Shaanxi Province, School of Materials Science and Engineering, Shaanxi Normal University , Xi'an, 710119, China
| | - Fangjuan Zhang
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, Key Laboratory of Macromolecular Science of Shaanxi Province, School of Materials Science and Engineering, Shaanxi Normal University , Xi'an, 710119, China
| | - Cuijin Pei
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, Key Laboratory of Macromolecular Science of Shaanxi Province, School of Materials Science and Engineering, Shaanxi Normal University , Xi'an, 710119, China
| | - Bin Liu
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, Key Laboratory of Macromolecular Science of Shaanxi Province, School of Materials Science and Engineering, Shaanxi Normal University , Xi'an, 710119, China
| | - Heqing Yang
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, Key Laboratory of Macromolecular Science of Shaanxi Province, School of Materials Science and Engineering, Shaanxi Normal University , Xi'an, 710119, China
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29
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Wang L, Jackman JA, Park JH, Tan EL, Cho NJ. A flexible, ultra-sensitive chemical sensor with 3D biomimetic templating for diabetes-related acetone detection. J Mater Chem B 2017; 5:4019-4024. [PMID: 32264133 DOI: 10.1039/c7tb00787f] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The structural features of biological organisms have evolved through natural selection to provide highly tailored functions, inspiring numerous biomimetic and biological design strategies. A wide scope of untapped potential lies in harnessing the nanoscale architectural properties of natural biological materials to develop high-performance sensors. Herein, we report the development of an ultrasensitive chemical sensor that is based on the three-dimensional (3D) biomimetic templating of a structurally hierarchical butterfly wing. In conjunction with graphene sheet coating strategies, the porous 3D architecture enables highly selective detection of diabetes-related volatile organic compounds (VOCs), including a rapid response time (≤1 s), a low limit of detection (20 ppb), and superior mechanical properties. Taken together, the findings in this work demonstrate the promise of incorporating natural biological materials into high-performance sensors, with excellent potential for wearable and flexible sensors.
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Affiliation(s)
- Lili Wang
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore, Singapore.
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30
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Zhou W, Zheng Z, Wang C, Wang Z, An R. One-Step Fabrication of 3D Nanohierarchical Nickel Nanomace Array To Sinter with Silver NPs and the Interfacial Analysis. ACS APPLIED MATERIALS & INTERFACES 2017; 9:4798-4807. [PMID: 28080029 DOI: 10.1021/acsami.6b13031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Three-dimensional (3D) nanohierarchical Ni nanomace (Ni NM) array was fabricated on copper substrate by only one step with electroplating method, the unique structure was covered with Au film (Ni/Au NM) without changing its morphology, and in the following step, it was sintered with silver nanoparticle (Ag NP) paste. The structure of the Ni NM array and its surface morphology were characterized by X-ray diffraction, scanning electron microscope (SEM), and atomic force microscope. The sintered interface was investigated by SEM, transmission electron microscopy, and energy-dispersive X-ray spectroscopy to analyze the sintering mechanism. The results showed that a metallurgical bond was successfully achieved at 250 °C without any gas or vacuum shield and extra pressure. The Cu substrate with Ni/Au NM array was able to join with the Ag NP paste without obvious voids. Due to the compatible chemical potential between Ag NPs and Ni/Au NM array, the Au element was able to diffuse into the Ag layer with about 800 nm distance. Based on the excellent 3D nanohierarchical structure, the shear strength of Ni/Au NM array was 6 times stronger than the flat Ni/Au coated substrate. It turned out that the substrate surface played a crucial role in improving the shear strength and sintering efficiency. The 3D Ni NM array had achieved an excellent bonding interface and had great potential application in the microelectronics packaging field.
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Affiliation(s)
- Wei Zhou
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology , Harbin 150001, People's Republic of China
| | - Zhen Zheng
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology , Harbin 150001, People's Republic of China
| | - Chunqing Wang
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology , Harbin 150001, People's Republic of China
- Key Laboratory of Micro-systems and Micro-structures Manufacturing, Ministry of Education, Harbin Institute of Technology , Harbin 150080, People's Republic of China
| | - Zhongtao Wang
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology , Harbin 150001, People's Republic of China
| | - Rong An
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology , Harbin 150001, People's Republic of China
- Key Laboratory of Micro-systems and Micro-structures Manufacturing, Ministry of Education, Harbin Institute of Technology , Harbin 150080, People's Republic of China
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31
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Sui L, Zhang X, Cheng X, Wang P, Xu Y, Gao S, Zhao H, Huo L. Au-Loaded Hierarchical MoO 3 Hollow Spheres with Enhanced Gas-Sensing Performance for the Detection of BTX (Benzene, Toluene, And Xylene) And the Sensing Mechanism. ACS APPLIED MATERIALS & INTERFACES 2017; 9:1661-1670. [PMID: 28009163 DOI: 10.1021/acsami.6b11754] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Monodisperse, hierarchical α-MoO3 hollow spheres were fabricated using a facile template-free solvothermal method combined with subsequent calcination. Various quantities of Au nanoparticles (NPs) were deposited on the α-MoO3 hollow spheres to construct hybrid nanomaterials for chemical gas sensors and their BTX sensing properties were investigated. The 2.04 wt % Au-loaded α-MoO3 sensor can detect BTX effectively at 250 °C, especially, its responses to 100 ppm toluene and xylene are 17.5 and 22.1, respectively, which are 4.6 and 3.9 times higher than those of pure α-MoO3 hollow spheres at 290 °C. Besides, Au loading decreased the response times to toluene and xylene from 19 and 6 s to 1.6 and 2 s, respectively, lowered the working temperature from 290 to 250 °C as compared with those of pure α-MoO3. The surface status of Au/α-MoO3 hollow spheres before and after contacting with toluene at 250 °C was analyzed through XPS technique. Possible oxidization product of toluene was confirmed by GC for the first time. The gas-sensing mechanism of the Au/α-MoO3 was speculated as the oxidation of toluene to water and carbon dioxide by chemisorbed oxygen and lattice oxygen. The possible reason related with improved gas-sensing properties of the Au-functionalized α-MoO3 was discussed.
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Affiliation(s)
- Lili Sui
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University , Harbin 150080, China
- School of Chemistry and Chemical Engineering, Qiqihar University , Qiqihar 161006, China
| | - Xianfa Zhang
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University , Harbin 150080, China
| | - Xiaoli Cheng
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University , Harbin 150080, China
| | - Ping Wang
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University , Harbin 150080, China
- School of Chemistry and Chemical Engineering, Qiqihar University , Qiqihar 161006, China
| | - Yingming Xu
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University , Harbin 150080, China
| | - Shan Gao
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University , Harbin 150080, China
| | - Hui Zhao
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University , Harbin 150080, China
| | - Lihua Huo
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University , Harbin 150080, China
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32
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Li TT, Zheng RR, Yu H, Yang Y, Wang TT, Dong XT. Synthesis of highly sensitive disordered porous SnO2 aerogel composite material by the chemical deposition method: synergistic effect of a layer of CuO thin film. RSC Adv 2017. [DOI: 10.1039/c7ra06415b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this study, a new chemical deposition method was innovatively used to prepare disordered porous CuO/SnO2 aerogel composite material (CuO/SnO2-ACM). The prepared material has the excellent gas sensing property.
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Affiliation(s)
- Tian-tian Li
- School of Chemistry & Environmental Engineering
- Changchun University of Science and Technology
- Changchun 130022
- P. R. China
| | - Ren-rong Zheng
- School of Chemistry & Environmental Engineering
- Changchun University of Science and Technology
- Changchun 130022
- P. R. China
| | - Hui Yu
- School of Chemistry & Environmental Engineering
- Changchun University of Science and Technology
- Changchun 130022
- P. R. China
| | - Ying Yang
- School of Chemistry & Environmental Engineering
- Changchun University of Science and Technology
- Changchun 130022
- P. R. China
- Key Laboratory of Functional Inorganic Material Chemistry
| | - Ting-ting Wang
- School of Chemistry & Environmental Engineering
- Changchun University of Science and Technology
- Changchun 130022
- P. R. China
| | - Xiang-ting Dong
- School of Chemistry & Environmental Engineering
- Changchun University of Science and Technology
- Changchun 130022
- P. R. China
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33
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Wang L, Chen D, Jiang K, Shen G. New insights and perspectives into biological materials for flexible electronics. Chem Soc Rev 2017; 46:6764-6815. [DOI: 10.1039/c7cs00278e] [Citation(s) in RCA: 259] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Materials based on biological materials are becoming increasingly competitive and are likely to be critical components in flexible electronic devices.
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Affiliation(s)
- Lili Wang
- State Key Laboratory on Integrated Optoelectronics
- College of Electronic Science and Engineering
- Jilin University
- Changchun 130012
- P. R. China
| | - Di Chen
- School of Mathematics and Physics
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Kai Jiang
- Institute & Hospital of Hepatobiliary Surgery
- Key Laboratory of Digital Hepatobiliary Surgery of Chinese PLA
- Chinese PLA Medical School
- Chinese PLA General Hospital
- Beijing 100853
| | - Guozhen Shen
- State Key Laboratory for Superlattices and Microstructures
- Institute of Semiconductors
- Chinese Academy of Sciences
- Beijing 100083
- China
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34
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Wu L, Wu Y, Jin S, Zhang L, Xun Z. Gas sensitivity and photocatalytic performance of cuprous oxide with novel morphologies. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2016.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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35
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Lou Z, Shen G. Flexible Photodetectors Based on 1D Inorganic Nanostructures. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2016; 3:1500287. [PMID: 27774404 PMCID: PMC5064608 DOI: 10.1002/advs.201500287] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Revised: 09/18/2015] [Indexed: 05/21/2023]
Abstract
Flexible photodetectors with excellent flexibility, high mechanical stability and good detectivity, have attracted great research interest in recent years. 1D inorganic nanostructures provide a number of opportunities and capabilities for use in flexible photodetectors as they have unique geometry, good transparency, outstanding mechanical flexibility, and excellent electronic/optoelectronic properties. This article offers a comprehensive review of several types of flexible photodetectors based on 1D nanostructures from the past ten years, including flexible ultraviolet, visible, and infrared photodetectors. High-performance organic-inorganic hybrid photodetectors, as well as devices with 1D nanowire (NW) arrays, are also reviewed. Finally, new concepts of flexible photodetectors including piezophototronic, stretchable and self-powered photodetectors are examined to showcase the future research in this exciting field.
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Affiliation(s)
- Zheng Lou
- State Key Laboratory for Superlattices and Microstructures Institute of Semiconductors Chinese Academy of Sciences Beijing 100083 P.R. China
| | - Guozhen Shen
- State Key Laboratory for Superlattices and Microstructures Institute of Semiconductors Chinese Academy of Sciences Beijing 100083 P.R. China
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36
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Li J, Tang P, Zhang J, Feng Y, Luo R, Chen A, Li D. Facile Synthesis and Acetone Sensing Performance of Hierarchical SnO2 Hollow Microspheres with Controllable Size and Shell Thickness. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.6b00060] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiao Li
- State Key Laboratory of Chemical Resource
Engineering, and ‡Beijing Engineering
Center for Hierarchical Catalysts, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Pinggui Tang
- State Key Laboratory of Chemical Resource
Engineering, and ‡Beijing Engineering
Center for Hierarchical Catalysts, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Jiajun Zhang
- State Key Laboratory of Chemical Resource
Engineering, and ‡Beijing Engineering
Center for Hierarchical Catalysts, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Yongjun Feng
- State Key Laboratory of Chemical Resource
Engineering, and ‡Beijing Engineering
Center for Hierarchical Catalysts, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Ruixian Luo
- State Key Laboratory of Chemical Resource
Engineering, and ‡Beijing Engineering
Center for Hierarchical Catalysts, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Aifan Chen
- State Key Laboratory of Chemical Resource
Engineering, and ‡Beijing Engineering
Center for Hierarchical Catalysts, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Dianqing Li
- State Key Laboratory of Chemical Resource
Engineering, and ‡Beijing Engineering
Center for Hierarchical Catalysts, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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37
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Wang L, Lou Z, Zhang R, Zhou T, Deng J, Zhang T. Hybrid Co3O4/SnO2 Core-Shell Nanospheres as Real-Time Rapid-Response Sensors for Ammonia Gas. ACS APPLIED MATERIALS & INTERFACES 2016; 8:6539-45. [PMID: 26943006 DOI: 10.1021/acsami.6b00305] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Novel hybrid Co3O4/SnO2 core-shell nanospheres have been effectively realized by a one-step hydrothermal, template-free preparation method. Our strategy involves a simple fabrication scheme that entails the coating of natural cross-link agents followed by electrostatic interaction between the positive charges of Sn and Co ions and the negative charge of glutamic acid. The core-shell architecture enables novel flexibility of gas sensor surfaces compared to commonly used bulk materials. The highly efficient charge transfer and unique structure are key to ensuring the availability of high response and rapid-response speed. It demonstrates how hybrid core-shell nanospheres can be used as an advance function material to fabricate electrical sensing devices that may be useful as gas sensors.
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Affiliation(s)
- Lili Wang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , Changchun 130012, P. R. China
| | - Zheng Lou
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences , Beijing 100083, China
| | - Rui Zhang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , Changchun 130012, P. R. China
| | - Tingting Zhou
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , Changchun 130012, P. R. China
| | - Jianan Deng
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , Changchun 130012, P. R. China
| | - Tong Zhang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , Changchun 130012, P. R. China
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38
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Leonardi SG, Mirzaei A, Bonavita A, Santangelo S, Frontera P, Pantò F, Antonucci PL, Neri G. A comparison of the ethanol sensing properties of α-iron oxide nanostructures prepared via the sol-gel and electrospinning techniques. NANOTECHNOLOGY 2016; 27:075502. [PMID: 26811509 DOI: 10.1088/0957-4484/27/7/075502] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Haematite (α-Fe2O3) nanostructures were synthesized via a Pechini sol-gel method (PSG) and an electrospinning (ES) technique. Their texture and morphology were investigated by scanning and transmission electron microscopy. α-Fe2O3 nanoparticles were obtained by the PSG method, whereas fibrous structures consisting of interconnected particles were synthesized through the ES technique. The crystallinity of the α-Fe2O3 nanostructures was also studied by means of x-ray diffraction and Raman spectroscopy. Gas-sensing devices were fabricated by printing the synthesized samples on ceramic substrates provided with interdigitated Pt electrodes. The sensors were tested towards low concentrations of ethanol in air in the temperature range (200-400 °C). The results show that the α-Fe2O3 nanostructures exhibit somewhat different gas-sensing properties and, interestingly, their sensing behaviour is strongly temperature-dependent. The availability of active sites for oxygen chemisorption and the diffusion of the analyte gas within the sensing layer structure are hypothesized to be the key factors responsible for the different sensing behaviour observed.
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Affiliation(s)
- S G Leonardi
- Dept. of Electronic Engineering, Chemistry and Materials Engineering, University of Messina, Italy
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39
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Zhang R, Zhou T, Wang L, Lou Z, Deng J, Zhang T. The synthesis and fast ethanol sensing properties of core–shell SnO2@ZnO composite nanospheres using carbon spheres as templates. NEW J CHEM 2016. [DOI: 10.1039/c6nj00365f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A special core–shell SnO2@ZnO composite nanosphere with hollow and porous structures shows excellent ethanol sensing properties.
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Affiliation(s)
- Rui Zhang
- State Key Laboratory on Integrated Optoelectronics
- College of Electronic Science and Engineering
- Jilin University
- Changchun
- China
| | - Tingting Zhou
- State Key Laboratory on Integrated Optoelectronics
- College of Electronic Science and Engineering
- Jilin University
- Changchun
- China
| | - Lili Wang
- State Key Laboratory on Integrated Optoelectronics
- College of Electronic Science and Engineering
- Jilin University
- Changchun
- China
| | - Zheng Lou
- State Key Laboratory for Superlattices and Microstructures
- Institute of Semiconductors
- Chinese Academy of Sciences
- Beijing 100083
- China
| | - Jianan Deng
- State Key Laboratory on Integrated Optoelectronics
- College of Electronic Science and Engineering
- Jilin University
- Changchun
- China
| | - Tong Zhang
- State Key Laboratory on Integrated Optoelectronics
- College of Electronic Science and Engineering
- Jilin University
- Changchun
- China
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40
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Qin G, Gao F, Jiang Q, Li Y, Liu Y, Luo L, Zhao K, Zhao H. Well-aligned Nd-doped SnO2 nanorod layered arrays: preparation, characterization and enhanced alcohol-gas sensing performance. Phys Chem Chem Phys 2016; 18:5537-49. [DOI: 10.1039/c5cp07174g] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nd-doped SnO2 nanoarrays with novel nanostructures of double nanorod layers prepared by a facile hydrothermal route greatly improve alcohol-sensing performance.
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Affiliation(s)
- Guohui Qin
- Department of Materials Science and Engineering
- Yunnan University
- Kunming
- P. R. China
| | - Fan Gao
- Department of Materials Science and Engineering
- Yunnan University
- Kunming
- P. R. China
| | - Qiuping Jiang
- Department of Materials Science and Engineering
- Yunnan University
- Kunming
- P. R. China
| | - Yuehua Li
- Advanced Analysis and Measurement Center of Dali University
- Dali
- P. R. China
| | - Yongjun Liu
- Advanced Analysis and Measurement Center of Yunnan University
- Kunming
- P. R. China
| | - Li Luo
- Department of Materials Science and Engineering
- Yunnan University
- Kunming
- P. R. China
| | - Kang Zhao
- Department of Materials Science and Engineering
- Yunnan University
- Kunming
- P. R. China
| | - Heyun Zhao
- Department of Materials Science and Engineering
- Yunnan University
- Kunming
- P. R. China
- Yunnan Key Laboratory for Micro/Nano Materials and Technology
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41
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Zhang G, Han X, Bian W, Zhan J, Ma X. Facile synthesis and high formaldehyde-sensing performance of NiO–SnO2 hybrid nanospheres. RSC Adv 2016. [DOI: 10.1039/c5ra21063a] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A formaldehyde gas sensor with high sensitivity and superior selectivity has been fabricated successfully with NiO–SnO2 hybrid nanospheres.
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Affiliation(s)
- Guochen Zhang
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- PR China
| | - Xue Han
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- PR China
| | - Weiwei Bian
- Medical Chemistry Staff Room
- Weifang Medical University
- Weifang 261053
- PR China
| | - Jinhua Zhan
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- PR China
| | - Xicheng Ma
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- PR China
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42
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Li Y, Cao Y, Jia D. Facile solid-state synthesis of Fe/FeOOH hierarchical nanostructures assembled from ultrathin nanosheets and their application in water treatment. CrystEngComm 2016. [DOI: 10.1039/c6ce01761d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Liu J, Wu Z, Tian Q, Wu W, Xiao X. Shape-controlled iron oxide nanocrystals: synthesis, magnetic properties and energy conversion applications. CrystEngComm 2016. [DOI: 10.1039/c6ce01307d] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Iron oxide nanocrystals (IONCs) with various geometric morphologies show excellent physical and chemical properties and have received extensive attention in recent years.
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Affiliation(s)
- Jun Liu
- School of Physics and Technology and School of Printing and Packaging
- Wuhan University
- Wuhan 430072, PR China
| | - Zhaohui Wu
- School of Physics and Technology and School of Printing and Packaging
- Wuhan University
- Wuhan 430072, PR China
| | - Qingyong Tian
- School of Physics and Technology and School of Printing and Packaging
- Wuhan University
- Wuhan 430072, PR China
| | - Wei Wu
- School of Physics and Technology and School of Printing and Packaging
- Wuhan University
- Wuhan 430072, PR China
- Suzhou Research Institute of Wuhan University
- Suzhou 215000, PR China
| | - Xiangheng Xiao
- School of Physics and Technology and School of Printing and Packaging
- Wuhan University
- Wuhan 430072, PR China
- Suzhou Research Institute of Wuhan University
- Suzhou 215000, PR China
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44
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Yang Y, Liang Y, Wang G, Liu L, Yuan C, Yu T, Li Q, Zeng F, Gu G. Enhanced Gas-Sensing Properties of the Hierarchical TiO₂ Hollow Microspheres with Exposed High-Energy {001} Crystal Facets. ACS APPLIED MATERIALS & INTERFACES 2015; 7:24902-24908. [PMID: 26497199 DOI: 10.1021/acsami.5b08372] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Anatase hierarchical TiO2 with innovative designs (hollow microspheres with exposed high-energy {001} crystal facets, hollow microspheres without {001} crystal facets, and solid microspheres without {001} crystal facets) were synthesized via a one-pot hydrothermal method and characterized. Based on these materials, gas sensors were fabricated and used for gas-sensing tests. It was found that the sensor based on hierarchical TiO2 hollow microspheres with exposed high-energy {001} crystal facets exhibited enhanced acetone sensing properties compared to the sensors based on the other two materials due to the exposing of high-energy {001} crystal facets and special hierarchical hollow structure. First-principle calculations were performed to illustrate the sensing mechanism, which suggested that the adsorption process of acetone molecule on TiO2 surface was spontaneous, and the adsorption on high-energy {001} crystal facets would be more stable than that on the normally exposed {101} crystal facets. Further characterization indicated that the {001} surface was highly reactive for the adsorption of active oxygen species, which was also responsible for the enhanced sensing performance. The present studies revealed the crystal-facets-dependent gas-sensing properties of TiO2 and provided a new insight into improving the gas sensing performance by designing hierarchical hollow structure with special-crystal-facets exposure.
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Affiliation(s)
- Yong Yang
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, School of Physics, Communication and Electronics, Jiangxi Normal University , Nanchang 330022, Jiangxi, P.R. China
| | - Yan Liang
- Department of Science Education, Jiangxi University of Technology , Nanchang 330098, Jiangxi, P.R. China
| | - Guozhong Wang
- Key Laboratory of Materials Physics, Centre for Environmental and Energy Nanomaterials, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences , Hefei 230031, P.R. China
| | - Liangliang Liu
- School of Physics and Technology, Wuhan University , Wuhan 430072, P.R. China
| | - Cailei Yuan
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, School of Physics, Communication and Electronics, Jiangxi Normal University , Nanchang 330022, Jiangxi, P.R. China
| | - Ting Yu
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, School of Physics, Communication and Electronics, Jiangxi Normal University , Nanchang 330022, Jiangxi, P.R. China
| | - Qinliang Li
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, School of Physics, Communication and Electronics, Jiangxi Normal University , Nanchang 330022, Jiangxi, P.R. China
| | - Fanyan Zeng
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, School of Physics, Communication and Electronics, Jiangxi Normal University , Nanchang 330022, Jiangxi, P.R. China
| | - Gang Gu
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, School of Physics, Communication and Electronics, Jiangxi Normal University , Nanchang 330022, Jiangxi, P.R. China
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45
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Mutagenic Effects of Iron Oxide Nanoparticles on Biological Cells. Int J Mol Sci 2015; 16:23482-516. [PMID: 26437397 PMCID: PMC4632710 DOI: 10.3390/ijms161023482] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Revised: 09/14/2015] [Accepted: 09/18/2015] [Indexed: 11/17/2022] Open
Abstract
In recent years, there has been an increased interest in the design and use of iron oxide materials with nanoscale dimensions for magnetic, catalytic, biomedical, and electronic applications. The increased manufacture and use of iron oxide nanoparticles (IONPs) in consumer products as well as industrial processes is expected to lead to the unintentional release of IONPs into the environment. The impact of IONPs on the environment and on biological species is not well understood but remains a concern due to the increased chemical reactivity of nanoparticles relative to their bulk counterparts. This review article describes the impact of IONPs on cellular genetic components. The mutagenic impact of IONPs may damage an organism's ability to develop or reproduce. To date, there has been experimental evidence of IONPs having mutagenic interactions on human cell lines including lymphoblastoids, fibroblasts, microvascular endothelial cells, bone marrow cells, lung epithelial cells, alveolar type II like epithelial cells, bronchial fibroblasts, skin epithelial cells, hepatocytes, cerebral endothelial cells, fibrosarcoma cells, breast carcinoma cells, lung carcinoma cells, and cervix carcinoma cells. Other cell lines including the Chinese hamster ovary cells, mouse fibroblast cells, murine fibroblast cells, Mytilus galloprovincialis sperm cells, mice lung cells, murine alveolar macrophages, mice hepatic and renal tissue cells, and vero cells have also shown mutagenic effects upon exposure to IONPs. We further show the influence of IONPs on microorganisms in the presence and absence of dissolved organic carbon. The results shed light on the OPEN ACCESS Int. J. Mol. Sci. 2015, 16 23483 transformations IONPs undergo in the environment and the nature of the potential mutagenic impact on biological cells.
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46
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Bhosale MA, Ummineni D, Sasaki T, Nishio-Hamane D, Bhanage BM. Magnetically separable γ-Fe2O3 nanoparticles: An efficient catalyst for acylation of alcohols, phenols, and amines using sonication energy under solvent free condition. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcata.2015.04.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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47
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Gas Sensing Properties of Epitaxial LaBaCo2O5.5+δ Thin Films. Sci Rep 2015; 5:10784. [PMID: 26146369 PMCID: PMC4491845 DOI: 10.1038/srep10784] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 05/01/2015] [Indexed: 11/16/2022] Open
Abstract
Chemical reactivity and stability of highly epitaxial mixed-conductive LaBaCo2O5.5+δ (LBCO) thin films on (001) LaAlO3 (LAO) single-crystalline substrates, fabricated by using pulsed laser deposition system, were systematically investigated. Microstructure studies from x-ray diffraction indicate that the films are c-axis oriented with the interface relationship of [100]LBCO//[100]LAO and (001)LBCO//(001)LAO. LBCO thin films can detect the ethanol vapor concentration as low as 10ppm and the response of LBCO thin film to various ethanol vapor concentrations is very reliable and reproducible with the switch between air and ethanol vapor. Moreover, the fast response of the LBCO thin film, as the p-type gas sensor, is better than some n-type oxide semiconductor thin films and comparable with some nanorods and nanowires. These findings indicate that the LBCO thin films have great potential for the development of gas sensors in reducing/oxidizing environments.
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48
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Wang L, Lou Z, Deng J, Zhang R, Zhang T. Ethanol Gas Detection Using a Yolk-Shell (Core-Shell) α-Fe2O3 Nanospheres as Sensing Material. ACS APPLIED MATERIALS & INTERFACES 2015; 7:13098-104. [PMID: 26010465 DOI: 10.1021/acsami.5b03978] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Three-dimensional (3D) nanostructures of α-Fe2O3 materials, including both hollow sphere-shaped and yolk-shell (core-shell)-shaped, have been successfully synthesized via an environmentally friendly hydrothermal approach. By expertly adjusting the reaction time, the solid, hollow, and yolk-shell shaped α-Fe2O3 can be selectively synthesized. Yolk-shell α-Fe2O3 nanospheres display outer diameters of 350 nm, and the interstitial hollow spaces layer is intimately sandwiched between the inner and outer shell of α-Fe2O3 nanostructures. The possible growth mechanism of the yolk-shell nanostructure is proposed. The results showed that the well-defined bilayer interface effectively enhanced the sensing performance of the α-Fe2O3 nanostructures (i.e., yolk-shell α-Fe2O3@α-Fe2O3), owing predominantly to the unique nanostructure, thus facilitated the transport rate and augmented the adsorption quantity of the target gas molecule under gas detection.
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Affiliation(s)
- LiLi Wang
- †State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, PR China
| | - Zheng Lou
- ‡State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
| | - Jianan Deng
- †State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, PR China
| | - Rui Zhang
- †State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, PR China
| | - Tong Zhang
- †State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, PR China
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49
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Wu H, Lou Z, Yang H, Shen G. A flexible spiral-type supercapacitor based on ZnCo2O4 nanorod electrodes. NANOSCALE 2015; 7:1921-6. [PMID: 25530208 DOI: 10.1039/c4nr06336h] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Fiber electrochemical capacitors show advantages such as light weight and flexibility, and may also be easily integrated or woven into various electronic devices with low cost and high efficiency. In this work, we report the preparation of ZnCo2O4 nanorods on a Ni wire as the fiber electrodes, using a simple and rapid single-step hydrothermal process. The electrochemical properties of the free-standing supercapacitor were analyzed using a two electrode system. The supercapacitor achieved a specific capacitance of 10.9 F g(-1). An energy density of 76 mWh kg(-1) and a power density of up to 1.9 W kg(-1) were also obtained for the fiber supercapacitors. The flexible supercapacitor exhibited remarkable electrochemical stability when subjected to bending at various angles, illustrating the promise for use as electrodes for wearable energy storage.
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Affiliation(s)
- Hao Wu
- The Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors, Shanghai Normal University, Shanghai 200234, China
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50
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Li Z, Meng G, Chen R, Song X. Eco-friendly synthesis and photodegradation of hierarchical nanostructures of β-FeOOH and α-Fe2O3. RSC Adv 2015. [DOI: 10.1039/c5ra15136h] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
β-FeOOH and α-Fe2O3 with different morphologies were synthesized via a facile method using urea or saccharide as the organic matrix.
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Affiliation(s)
- Zan Li
- College of Chemistry and Materials Science
- Hebei Normal University
- Shijiazhuang 050024
- China
| | - Guoli Meng
- College of Chemistry and Materials Science
- Hebei Normal University
- Shijiazhuang 050024
- China
| | - Rufen Chen
- College of Chemistry and Materials Science
- Hebei Normal University
- Shijiazhuang 050024
- China
| | - Xiuqin Song
- College of Chemistry and Materials Science
- Hebei Normal University
- Shijiazhuang 050024
- China
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