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Mao Z, Yang Z, Tao W, Tang Q, Xiao Y, Jiang Y, Guo S. Ultrafine Ag Nanoparticles Anchored on Hollow S-Doped CeO 2 Spheres for Synergistically Enhanced Tetracycline Degradation under Visible Light. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Zifei Mao
- Institute of Advanced Materials (IAM), College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People’s Republic of China
| | - Ziang Yang
- Institute of Advanced Materials (IAM), College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People’s Republic of China
| | - Wei Tao
- Institute of Advanced Materials (IAM), College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People’s Republic of China
| | - Qiaoya Tang
- Institute of Advanced Materials (IAM), College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People’s Republic of China
| | - Yuting Xiao
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, People’s Republic of China
| | - Yong Jiang
- College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou 545006, People’s Republic of China
| | - Shien Guo
- Institute of Advanced Materials (IAM), College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People’s Republic of China
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2
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CUI S, QIN J, LIU W. Ultrafine Pt-doped SnO2 mesopore nanofibers-based gas sensor for enhanced acetone sensing. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1016/j.cjac.2022.100188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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3
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Berrichi A, Bailiche Z, Bachir R. Mesoporous Au/Fe2O3 catalyst for propargylamines synthesis via CH2Cl2 under visible light irradiation. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04796-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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4
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Radin E, Štefanić G, Dražić G, Marić I, Jurkin T, Pustak A, Baran N, Raić M, Gotić M. Solid-State Dispersions of Platinum in the SnO 2 and Fe 2O 3 Nanomaterials. NANOMATERIALS 2021; 11:nano11123349. [PMID: 34947698 PMCID: PMC8704069 DOI: 10.3390/nano11123349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/01/2021] [Accepted: 12/07/2021] [Indexed: 11/16/2022]
Abstract
The dispersion of platinum (Pt) on metal oxide supports is important for catalytic and gas sensing applications. In this work, we used mechanochemical dispersion and compatible Fe(II) acetate, Sn(II) acetate and Pt(II) acetylacetonate powders to better disperse Pt in Fe2O3 and SnO2. The dispersion of platinum in SnO2 is significantly different from the dispersion of Pt over Fe2O3. Electron microscopy has shown that the elements Sn, O and Pt are homogeneously dispersed in α-SnO2 (cassiterite), indicating the formation of a (Pt,Sn)O2 solid solution. In contrast, platinum is dispersed in α-Fe2O3 (hematite) mainly in the form of isolated Pt nanoparticles despite the oxidative conditions during annealing. The size of the dispersed Pt nanoparticles over α-Fe2O3 can be controlled by changing the experimental conditions and is set to 2.2, 1.2 and 0.8 nm. The rather different Pt dispersion in α-SnO2 and α-Fe2O3 is due to the fact that Pt4+ can be stabilized in the α-SnO2 structure by replacing Sn4+ with Pt4+ in the crystal lattice, while the substitution of Fe3+ with Pt4+ is unfavorable and Pt4+ is mainly expelled from the lattice at the surface of α-Fe2O3 to form isolated platinum nanoparticles.
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Affiliation(s)
- Edi Radin
- Laboratory for Molecular Physics and Synthesis of New Materials, Ruđer Bošković Institute, Bijenička c. 54, 10000 Zagreb, Croatia; (E.R.); (G.Š.); (N.B.); (M.R.)
| | - Goran Štefanić
- Laboratory for Molecular Physics and Synthesis of New Materials, Ruđer Bošković Institute, Bijenička c. 54, 10000 Zagreb, Croatia; (E.R.); (G.Š.); (N.B.); (M.R.)
| | - Goran Dražić
- National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia
- Correspondence: (G.D.); (M.G.)
| | - Ivan Marić
- Radiation Chemistry and Dosimetry Laboratory, Ruđer Bošković Institute, Bijenička c. 54, 10000 Zagreb, Croatia; (I.M.); (T.J.); (A.P.)
| | - Tanja Jurkin
- Radiation Chemistry and Dosimetry Laboratory, Ruđer Bošković Institute, Bijenička c. 54, 10000 Zagreb, Croatia; (I.M.); (T.J.); (A.P.)
| | - Anđela Pustak
- Radiation Chemistry and Dosimetry Laboratory, Ruđer Bošković Institute, Bijenička c. 54, 10000 Zagreb, Croatia; (I.M.); (T.J.); (A.P.)
| | - Nikola Baran
- Laboratory for Molecular Physics and Synthesis of New Materials, Ruđer Bošković Institute, Bijenička c. 54, 10000 Zagreb, Croatia; (E.R.); (G.Š.); (N.B.); (M.R.)
| | - Matea Raić
- Laboratory for Molecular Physics and Synthesis of New Materials, Ruđer Bošković Institute, Bijenička c. 54, 10000 Zagreb, Croatia; (E.R.); (G.Š.); (N.B.); (M.R.)
| | - Marijan Gotić
- Laboratory for Molecular Physics and Synthesis of New Materials, Ruđer Bošković Institute, Bijenička c. 54, 10000 Zagreb, Croatia; (E.R.); (G.Š.); (N.B.); (M.R.)
- Correspondence: (G.D.); (M.G.)
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The Effect of Noble Metals on Co Gas Sensing Properties of In2O3 Nanoparticles. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11114903] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Three types of In2O3 nanoparticles decorated with Au, Pd and Pt nanoparticles, respectively, were synthesized by thermal decomposition method, and the effects of metal nanoparticles on their phase, microstructure, chemical state, carrier types were investigated with XRD, SEM/TEM, and XPS. Additionally, sensing properties to CO gas, such as sensitivity, etc., were examined with sensing apparatus. Au-decorated In2O3 nanoparticles exhibited the highest sensitivity to CO gas, with S = 5.59 at a 10 ppm CO gas concentration at 50 °C compared to Pd or Pt-decorated In2O3 nanoparticles. This can be interpreted as a much higher adsorption of oxygen molecules on the In2O3 surface due to the high oxygen vacancies in the In2O3 lattice, which generates an electron depletion region in the outer layer of In2O3 to sharply increase the resistance or the spill-over effect due to Au nanoparticles on In2O3. Au nanoparticles were observed in the TEM images and confirmed by XPS analysis.
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6
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Heidari H, Aliramezani F. Reductant‐Free and In‐Situ Green Synthesis of Ag Nanoparticles on Fe
3
O
4
@Nanocellulose and Their Catalytic Activity for the Reduction of Dyes. ChemistrySelect 2021. [DOI: 10.1002/slct.202004579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hannaneh Heidari
- Department of Chemistry, Faculty of Physics and Chemistry Alzahra University Tehran Iran
| | - Fatemeh Aliramezani
- Department of Chemistry, Faculty of Physics and Chemistry Alzahra University Tehran Iran
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A photoelectrochemical enzyme biosensor based on functionalized hematite microcubes for rutin determination by square-wave voltammetry. Mikrochim Acta 2021; 188:28. [PMID: 33404780 DOI: 10.1007/s00604-020-04659-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 11/19/2020] [Indexed: 10/22/2022]
Abstract
A photoelectrochemical biosensing strategy for the highly sensitive detection of the flavonoid rutin was developed by synergizing the photoelectrocatalytic properties of hematite (α-Fe2O3) decorated with palladium nanoparticles (PdNPs) and the biocatalysis towards laccase-based reactions. The integration of α-Fe2O3.PdNPs with a polyphenol oxidase as a biorecognition element yields a novel biosensing platform. Under visible light irradiation, the photoactive biocomposite can generate a stable photocurrent, which was found to be directly dependent upon the concentration of rutin. Under the optimal experimental conditions, the cathodic photocurrent, measured at 0.33 V vs. Ag/AgCl, from the square-wave voltammograms presented a linear dependence on the rutin concentration within the range of 0.008-30.0 × 10-8 mol L-1 (sensitivity: 1.7 μA·(× 10-8 M-1)·cm-2), with an experimental detection limit (S/N = 3) of 8.4 × 10-11 mol L-1. The proposed biosensor device presented good selectivity towards rutin in the presence of various organic compounds and inorganic ions, demonstrating the potential application of this biosensing platform in complex matrices. This bioanalytical device also exhibited excellent operational and analytical properties, such as intra-day (standard deviation, SD = 0.21%) and inter-day (SD = 1.30%) repeatability, and long storage stability (SD = 2.80% over 30 days).Graphical abstract.
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Xia H, Zhou M, Wei X, Zhang X, Wu Z. Slow and Sustained Release of Carbonate Ions from Amino Acids for Controlled Hydrothermal Growth of Alkaline-Earth Carbonate Single Crystals. ACS OMEGA 2020; 5:14123-14132. [PMID: 32566880 PMCID: PMC7301596 DOI: 10.1021/acsomega.0c01719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 05/21/2020] [Indexed: 05/16/2023]
Abstract
Alkaline-earth metal carbonate materials have attracted wide interest because of their high value in many applications. Various sources of carbonate ions (CO3 2-), such as CO2 gas, alkaline-metal carbonate salts, and urea, have been reported for the synthesis of metal carbonate crystals, yet a slow and sustained CO3 2- release approach for controlled crystal growth is much desired. In this paper, we demonstrate a new chemical approach toward slow and sustained CO3 2- release for hydrothermal growth of large alkaline-earth metal carbonate single crystals. Such an approach is enabled by the multiple hydrolysis of a small basic amino acid (arginine, Arg). Namely, the amino groups of Arg hydrolyze to form OH- ions, making the solution basic, and the hydrolysis of the guanidyl group of Arg is hydrothermally triggered to produce urea and ammonia, followed by the hydrolysis of urea to produce CO2 and ammonia and then the release of CO3 2- because of the reaction between CO2 and the OH- ions hydrolyzed from ammonia. Such a CO3 2- release behavior enables the slow and controlled growth of various carbonate single crystals over a wide range of pH values. The growth of uniform rhombohedron MgCO3 single crystals with variable morphologies and crystal sizes is studied in detail. The influences of reaction temperature, solution pH, precursor type, and concentration on the morphology and size of the resulting MgCO3 crystals are elucidated. The crystal evolution mechanism is also proposed and discussed with various supportive data.
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Siddiqui S, Shawuti S, Sirajuddin, Niazi JH, Qureshi A. l-Cysteine-Mediated Self-Assembled Ag–Au Nanoparticles As Fractal Patterns with Bowling-Alley-like Hollow Arrays for Electrochemical Sensing of Dopamine. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b00016] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Samia Siddiqui
- Sabanci University SUNUM Nanotechnology Research Centre, TR-34956 Istanbul, Turkey
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan
| | - Shalima Shawuti
- Faculty of Engineering and Natural Sciences, Sabanci University, Orta Mahalle 34956, Tuzla, Istanbul, Turkey
| | - Sirajuddin
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan
| | - Javed H. Niazi
- Sabanci University SUNUM Nanotechnology Research Centre, TR-34956 Istanbul, Turkey
| | - Anjum Qureshi
- Sabanci University SUNUM Nanotechnology Research Centre, TR-34956 Istanbul, Turkey
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Lv H, Li Y, Zhang X, Li X, Xu Z, Chen L, Li D, Dong Y. Thionin functionalized signal amplification label derived dual-mode electrochemical immunoassay for sensitive detection of cardiac troponin I. Biosens Bioelectron 2019; 133:72-78. [PMID: 30909015 DOI: 10.1016/j.bios.2019.03.033] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 03/17/2019] [Accepted: 03/18/2019] [Indexed: 11/17/2022]
Abstract
A sensitive sandwich-type electrochemical immunosensor was established by employing Au@Pt core-shell multi-branched nanoparticles, and thionin functionalized nitrogen/sulfur co-doped graphene oxide (N/S-cGO/L-lys/Au@Pt MBs/Thi) as a double signal label to detect cardiac troponin I (cTnI). In this work, Au nanorods functionalized polydopamine (Au NR@PDA) with high adsorption capacity and superior electroconductivity can provide an efficient substrate for immobilizing primary antibodies (Ab1). In the proposed N/S-cGO/L-lys/Au@Pt MBs/Thi, an electrochemically active molecule, Thi was covalently bonded in the N/S-cGO/L-lys/Au@Pt MBs. It presented a strong differential pulse voltammetry (DPV) current signal without electron transfer mediators, and showed a high electrocatalytic activity toward H2O2 reduction by using amperometric i-t (i-t). Impressively, with the synergistic effect of N/S-cGO/L-lys/Au@Pt MBs/Thi and Au NR@PDA, the developed dual-mode electrochemical immunosensor for cTnI detection showed a wide linear concentration range (50 fg/mL to 250 ng/mL, 750 fg/mL to 100 ng/mL) and a low detection limit (16.7 fg/mL, 250 fg/mL) via i-t and DPV, respectively. Furthermore, this immunosensor exhibited acceptable reproducibility, high sensitivity and good stability under optimal conditions. More importantly, the satisfactory results were obtained in detection of cTnI-spiked human serum samples, and the presented method may be a promising application in clinical bioanalysis.
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Affiliation(s)
- Hui Lv
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China
| | - Yueyun Li
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China.
| | - Xiaobo Zhang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China
| | - Xinjin Li
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China
| | - Zhen Xu
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China
| | - Lei Chen
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China
| | - Degang Li
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China.
| | - Yunhui Dong
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China
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11
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Duan C, Meng J, Wang X, Meng X, Sun X, Xu Y, Zhao W, Ni Y. Synthesis of novel cellulose- based antibacterial composites of Ag nanoparticles@ metal-organic frameworks@ carboxymethylated fibers. Carbohydr Polym 2018; 193:82-88. [PMID: 29773400 DOI: 10.1016/j.carbpol.2018.03.089] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 02/25/2018] [Accepted: 03/24/2018] [Indexed: 12/16/2022]
Abstract
A novel cellulose-based antibacterial material, namely silver nanoparticles@ metal-organic frameworks@ carboxymethylated fibers composites (Ag NPs@ HKUST-1@ CFs), was synthesized. The results showed that the metal-organic frameworks (HKUST-1) were uniformly anchored on the fiber's surfaces by virtue of complexation between copper ions in HKUST-1 and carboxyl groups on the carboxymethylated fibers (CFs). The silver nanoparticles (Ag NPs) were immobilized and well-dispersed into the pores and/or onto the surfaces of HKUST-1 via in situ microwave reduction, resulting in the formation of novel Ag NPs@ HKUST-1@ CFs composites. The antibacterial assays showed that the as-prepared composites exhibited a much higher antibacterial activity than Ag NPs@ CFs or HKUST-1@ CFs samples.
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Affiliation(s)
- Chao Duan
- College of Bioresources Chemical and Materials Engineering, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science and Technology, Xi'an, 710021, China; Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Qilu University of Technology, Jinan, 250353, China.
| | - Jingru Meng
- College of Bioresources Chemical and Materials Engineering, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Xinqi Wang
- College of Bioresources Chemical and Materials Engineering, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Xin Meng
- College of Bioresources Chemical and Materials Engineering, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Xiaole Sun
- College of Bioresources Chemical and Materials Engineering, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Yongjian Xu
- College of Bioresources Chemical and Materials Engineering, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Wei Zhao
- College of Bioresources Chemical and Materials Engineering, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Yonghao Ni
- College of Bioresources Chemical and Materials Engineering, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science and Technology, Xi'an, 710021, China; Limerick Pulp and Paper Centre, University of New Brunswick, Fredericton, New Brunswick, E3 B 5A3, Canada.
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Shanmugasundaram A, Gundimeda V, Hou T, Lee DW. Realizing Synergy between In 2O 3 Nanocubes and Nitrogen-Doped Reduced Graphene Oxide: An Excellent Nanocomposite for the Selective and Sensitive Detection of CO at Ambient Temperatures. ACS APPLIED MATERIALS & INTERFACES 2017; 9:31728-31740. [PMID: 28875705 DOI: 10.1021/acsami.7b06253] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Hierarchical mesoporous In2O3 nanocubes and nitrogen-doped reduced graphene oxide-indium oxide nanocube (InNrGO) composites were prepared for carbon monoxide (CO) sensing. The as-synthesized materials were systematically investigated by different characterization techniques such as field emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, thermogravimetic analysis, X-ray photoelectron spectroscopy, micro-Raman, Fourier transform infrared spectroscopy, and photoluminesce analysis. The obtained results are consistent with each other. The CO-sensing characteristics of the In2O3 nanocubes and InNrGO composites were examined at different operating temperatures (35 °C < Ts < 300 °C) and CO concentrations (1-1000 ppm). Owing to their large surface-to-volume ratio and porosity, the In2O3 nanocubes exhibited a superior sensitivity with a detection limit of 1 ppm at 250 °C. Furthermore, to enhance the sensing characteristics and reduce the operating temperature, a composite of NrGO and In2O3 nanocubes was fabricated. The incorporation of NrGO drastically improved the sensing performance of the In2O3 nanocubes, showing an excellent sensitivity (SR ∼ 3.6-5 ppm of CO at ∼35 °C) with appreciably fast response (ΓRES ∼ 22 s) and recovery (ΓREC ∼ 32 s) times. The sensing studies supported by the structural and morphological material characteristics lead to the plausible sensing mechanism proposed.
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Affiliation(s)
- Arunkumar Shanmugasundaram
- MEMS and Nanotechnology Laboratory, School of Mechanical Systems Engineering, Chonnam National University , Gwangju-61186, Republic of Korea
| | - Veerabrahmachari Gundimeda
- Nanomaterials Laboratory, Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology , Hyderabad-500 007, Telangana, India
| | - Tianfeng Hou
- MEMS and Nanotechnology Laboratory, School of Mechanical Systems Engineering, Chonnam National University , Gwangju-61186, Republic of Korea
| | - Dong Weon Lee
- MEMS and Nanotechnology Laboratory, School of Mechanical Systems Engineering, Chonnam National University , Gwangju-61186, Republic of Korea
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Li X, Xie J, Liao L, Jiang X, Fu H. UV-curable polyurethane acrylate–Ag/TiO2 nanocomposites with superior UV light antibacterial activity. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2016.1276063] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Xiaoya Li
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, P. R. China
| | - Jingang Xie
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, P. R. China
| | - Lingyuan Liao
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, P. R. China
| | - Xiang Jiang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, P. R. China
| | - Heqing Fu
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, P. R. China
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Rahaman H, Kundu S, Ghosh SK. Size-Selective Silver-Induced Evolution of Mn3O4−Ag Nanocomposites for Effective Ethanol Sensing. ChemistrySelect 2017. [DOI: 10.1002/slct.201700321] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hasimur Rahaman
- Department of Chemistry; Assam University; Silchar- 788011 India
| | - Susmita Kundu
- Sensor and Actuator Division; CSIR-Central Glass and Ceramic Research Institute; Kolkata - 700 032 India
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Cellulose nanocrystal/hexadecyltrimethylammonium bromide/silver nanoparticle composite as a catalyst for reduction of 4-nitrophenol. Carbohydr Polym 2017; 156:253-258. [DOI: 10.1016/j.carbpol.2016.08.099] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 08/27/2016] [Accepted: 08/30/2016] [Indexed: 11/20/2022]
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16
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Zhang Q, Yang S, Zhu T, Oh JK, Li P. Soft-nanocoupling between silica and gold nanoparticles based on block copolymer. REACT FUNCT POLYM 2017. [DOI: 10.1016/j.reactfunctpolym.2016.10.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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17
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Woo H, Park KH. Recent developments in hybrid iron oxide–noble metal nanocatalysts for organic reactions. Catal Today 2016. [DOI: 10.1016/j.cattod.2016.01.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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18
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Liang S, Zhou Y, Cai Z, She C. Preparation of porous g-C3N4/Ag/Cu2O: a new composite with enhanced visible-light photocatalytic activity. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3523] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Shuang Liang
- School of Chemistry and Chemical Engineering; Southeast University; Nanjing 211189 People's Republic of China
- Jiangsu Optoelectronic Functional Materials and Engineering Laboratory; Nanjing 211189 People's Republic of China
| | - Yuming Zhou
- School of Chemistry and Chemical Engineering; Southeast University; Nanjing 211189 People's Republic of China
- Jiangsu Optoelectronic Functional Materials and Engineering Laboratory; Nanjing 211189 People's Republic of China
| | - Zhilan Cai
- School of Chemistry and Chemical Engineering; Southeast University; Nanjing 211189 People's Republic of China
- Jiangsu Optoelectronic Functional Materials and Engineering Laboratory; Nanjing 211189 People's Republic of China
| | - Chenguang She
- School of Chemistry and Chemical Engineering; Southeast University; Nanjing 211189 People's Republic of China
- Jiangsu Optoelectronic Functional Materials and Engineering Laboratory; Nanjing 211189 People's Republic of China
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Zhang J, Liu X, Neri G, Pinna N. Nanostructured Materials for Room-Temperature Gas Sensors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:795-831. [PMID: 26662346 DOI: 10.1002/adma.201503825] [Citation(s) in RCA: 441] [Impact Index Per Article: 55.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Indexed: 05/20/2023]
Abstract
Sensor technology has an important effect on many aspects in our society, and has gained much progress, propelled by the development of nanoscience and nanotechnology. Current research efforts are directed toward developing high-performance gas sensors with low operating temperature at low fabrication costs. A gas sensor working at room temperature is very appealing as it provides very low power consumption and does not require a heater for high-temperature operation, and hence simplifies the fabrication of sensor devices and reduces the operating cost. Nanostructured materials are at the core of the development of any room-temperature sensing platform. The most important advances with regard to fundamental research, sensing mechanisms, and application of nanostructured materials for room-temperature conductometric sensor devices are reviewed here. Particular emphasis is given to the relation between the nanostructure and sensor properties in an attempt to address structure-property correlations. Finally, some future research perspectives and new challenges that the field of room-temperature sensors will have to address are also discussed.
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Affiliation(s)
- Jun Zhang
- College of Physics, Qingdao University, Qingdao, 266071, China
- School of Materials Science and Engineering, University of Jinan, Jinan, 250022, China
| | - Xianghong Liu
- College of Physics, Qingdao University, Qingdao, 266071, China
- Institute for Integrative Nanosciences, IFW-Dresden, Helmholtzstrasse 20, 01069, Dresden, Germany
| | - Giovanni Neri
- Department of Electronic Engineering, Chemistry and Industrial Engineering, University of Messina, Contrada di Dio, 98166, Messina, Italy
| | - Nicola Pinna
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489, Berlin, Germany
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Rossell MD, Caparrós FJ, Angurell I, Muller G, Llorca J, Seco M, Rossell O. Magnetite-supported palladium single-atoms do not catalyse the hydrogenation of alkenes but small clusters do. Catal Sci Technol 2016. [DOI: 10.1039/c6cy00596a] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pd clusters of low atomicity supported on magnetite nanoparticles are extremely active for the hydrogenation of styrene, overcoming the best reported TOFs.
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Affiliation(s)
- Marta D. Rossell
- Electron Microscopy Center
- Empa
- Swiss Federal Laboratories for Materials Science and Technology
- 8600 Dübendorf
- Switzerland
| | | | - Inmaculada Angurell
- Departament de Química Inorgànica
- Universitat de Barcelona (UB)
- 08028 Barcelona
- Spain
| | - Guillermo Muller
- Departament de Química Inorgànica
- Universitat de Barcelona (UB)
- 08028 Barcelona
- Spain
| | - Jordi Llorca
- Institut de Tècniques Energètiques i Centre de Recerca en Nanoenginyeria
- Universitat Politècnica de Catalunya (UPC)
- 08028 Barcelona
- Spain
| | - Miquel Seco
- Departament de Química Inorgànica
- Universitat de Barcelona (UB)
- 08028 Barcelona
- Spain
| | - Oriol Rossell
- Departament de Química Inorgànica
- Universitat de Barcelona (UB)
- 08028 Barcelona
- Spain
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21
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Qu Y, Gao Y, Wang L, Rao J, Yin G. Mild Synthesis of Pt/SnO2
/Graphene Nanocomposites with Remarkably Enhanced Ethanol Electro-oxidation Activity and Durability. Chemistry 2015; 22:193-8. [DOI: 10.1002/chem.201503867] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Indexed: 11/11/2022]
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22
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Carabineiro S, Chen X, Martynyuk O, Bogdanchikova N, Avalos-Borja M, Pestryakov A, Tavares P, Órfão J, Pereira M, Figueiredo J. Gold supported on metal oxides for volatile organic compounds total oxidation. Catal Today 2015. [DOI: 10.1016/j.cattod.2014.06.034] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Ultrasensitive electrochemical immunosensor for carbohydrate antigen 72-4 based on dual signal amplification strategy of nanoporous gold and polyaniline–Au asymmetric multicomponent nanoparticles. Biosens Bioelectron 2015; 64:51-6. [DOI: 10.1016/j.bios.2014.08.043] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 07/26/2014] [Accepted: 08/05/2014] [Indexed: 02/07/2023]
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24
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Xue J, Ma S, Zhou Y, Zhang Z, Liu X. Fabrication of porous g-C3N4/Ag/Fe2O3 composites with enhanced visible light photocatalysis performance. RSC Adv 2015. [DOI: 10.1039/c5ra09978a] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Porous graphitic carbon nitride (pg-C3N4) synthetized by pyrolysis of urea was hybridized with Ag-doped Fe2O3 to form a visible-light-driven photocatalyst pg-C3N4/Ag/Fe2O3via a simple chemical adsorption method.
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Affiliation(s)
- Jinjuan Xue
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing 211189
- P. R. China
- Jiangsu Optoelectronic Functional Materials and Engineering Laboratory
| | - Shuaishuai Ma
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing 211189
- P. R. China
- Jiangsu Optoelectronic Functional Materials and Engineering Laboratory
| | - Yuming Zhou
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing 211189
- P. R. China
- Jiangsu Optoelectronic Functional Materials and Engineering Laboratory
| | - Zewu Zhang
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing 211189
- P. R. China
- Jiangsu Optoelectronic Functional Materials and Engineering Laboratory
| | - Xiangyu Liu
- Hangzhou Silan Integrated Circuit Co., Ltd
- Hangzhou 310018
- P. R. China
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25
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Jia C, Chen HS, Yang P. Selective growth of TiO2 beads on Ag nanowires and their photocatalytic performance. CrystEngComm 2015. [DOI: 10.1039/c5ce00705d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Necklace-like Ag nanowire@TiO2 heterostructures were fabricated by a two-step solvothermal method, which exhibited excellent photocatalytic performance.
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Affiliation(s)
- Changchao Jia
- School of Materials Science and Engineering
- University of Jinan
- Jinan, PR China
| | - Hsueh-Shih Chen
- Department of Materials Science and Engineering
- National Tsing Hua University
- Hsinchu 300, Taiwan
| | - Ping Yang
- School of Materials Science and Engineering
- University of Jinan
- Jinan, PR China
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26
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Wang S, Wang Y, Zhang H, Gao X, Yang J, Wang Y. Fabrication of porous α-Fe2O3nanoshuttles and their application for toluene sensors. RSC Adv 2014. [DOI: 10.1039/c4ra03743j] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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27
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Bao M, Chen Y, Li F, Ma J, Lv T, Tang Y, Chen L, Xu Z, Wang T. Plate-like p-n heterogeneous NiO/WO₃ nanocomposites for high performance room temperature NO₂ sensors. NANOSCALE 2014; 6:4063-4066. [PMID: 24603873 DOI: 10.1039/c3nr05268k] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Plate-like heterogeneous NiO/WO₃ nanocomposites have been successfully prepared by annealing Ni(OH)₂ and H₂WO₄ in air. These NiO/WO₃ nanocomposites have shown excellent sensitivity towards NO₂ and ultrafast response at room temperature due to their p-n heterogeneous characteristics.
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Affiliation(s)
- Meng Bao
- Key Laboratory for Micro-Nano Optoelectronic Devices of Ministry of Education, State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, Changsha, P.R. China.
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28
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Ren L, Teng C, Zhu L, He J, Wang Y, Zuo X, Hong M, Wang Y, Jiang B, Zhao J. Preparation of uniform magnetic recoverable catalyst microspheres with hierarchically mesoporous structure by using porous polymer microsphere template. NANOSCALE RESEARCH LETTERS 2014; 9:163. [PMID: 24708885 PMCID: PMC4113952 DOI: 10.1186/1556-276x-9-163] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Accepted: 03/21/2014] [Indexed: 05/07/2023]
Abstract
Merging nanoparticles with different functions into a single microsphere can exhibit profound impact on various applications. However, retaining the unique properties of each component after integration has proven to be a significant challenge. Our previous research demonstrated a facile method to incorporate magnetic nanoparticles into porous silica microspheres. Here, we report the fabrication of porous silica microspheres embedded with magnetic and gold nanoparticles as magnetic recoverable catalysts. The as-prepared multifunctional composite microspheres exhibit excellent magnetic and catalytic properties and a well-defined structure such as uniform size, high surface area, and large pore volume. As a result, the very little composite microspheres show high performance in catalytic reduction of 4-nitrophenol, special convenient magnetic separability, long life, and good reusability. The unique nanostructure makes the microspheres a novel stable and highly efficient catalyst system for various catalytic industry processes.
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Affiliation(s)
- Lianbing Ren
- Shenzhen Key Lab of Nano-Micro Materials Research, School of Chemical Biology & Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Chao Teng
- Shenzhen Key Lab of Nano-Micro Materials Research, School of Chemical Biology & Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Lili Zhu
- Shenzhen Key Lab of Nano-Micro Materials Research, School of Chemical Biology & Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Jie He
- Shenzhen Key Lab of Nano-Micro Materials Research, School of Chemical Biology & Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - You Wang
- Shenzhen Middle School, Shenzhen 518000, China
| | - Xinbing Zuo
- Shenzhen State High-tech Industrial Innovation Center, Shenzhen 518000, China
| | - Mei Hong
- Shenzhen Key Lab of Nano-Micro Materials Research, School of Chemical Biology & Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Yong Wang
- Shenzhen Key Lab of Nano-Micro Materials Research, School of Chemical Biology & Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Biwang Jiang
- Shenzhen Key Lab of Nano-Micro Materials Research, School of Chemical Biology & Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Jing Zhao
- Shenzhen Key Lab of Nano-Micro Materials Research, School of Chemical Biology & Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210093, China
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29
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Hybrid Au nanoparticles on Fe3O4@polymer as efficient catalyst for reduction of 4-nitrophenol. CATAL COMMUN 2014. [DOI: 10.1016/j.catcom.2013.12.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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30
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Wang L, Wang S, Zhang H, Wang Y, Yang J, Huang W. Au-functionalized porous ZnO microsheets and their enhanced gas sensing properties. NEW J CHEM 2014. [DOI: 10.1039/c3nj01562a] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Jiang Z, Zhu J, Liu D, Wei W, Xie J, Chen M. In situ synthesis of bimetallic Ag/Pt loaded single-crystalline anatase TiO2 hollow nano-hemispheres and their improved photocatalytic properties. CrystEngComm 2014. [DOI: 10.1039/c3ce41949e] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Wang P, Liu H, Tan Q, Yang J. Ruthenium oxide-based nanocomposites with high specific surface area and improved capacitance as a supercapacitor. RSC Adv 2014. [DOI: 10.1039/c4ra07044e] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A solvothermal approach and a mutual oxidation–reduction strategy were demonstrated for the synthesis of RuO2-based nanocomposites for supercapacitors.
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Affiliation(s)
- Pengfei Wang
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing, China
- University of Chinese Academy of Sciences
| | - Hui Liu
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing, China
| | - Qiangqiang Tan
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing, China
| | - Jun Yang
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing, China
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33
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Lv T, Chen Y, Ma J, Chen L. Hydrothermally processed SnO2 nanocrystals for ultrasensitive NO sensors. RSC Adv 2014. [DOI: 10.1039/c4ra03121k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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34
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Wang S, Zhang H, Wang Y, Wang L, Gong Z. Facile one-pot synthesis of Au nanoparticles decorated porous α-Fe2O3nanorods for in situ detection of VOCs. RSC Adv 2014. [DOI: 10.1039/c3ra44779k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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35
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Gao Q, Zhao A, Guo H, Chen X, Gan Z, Tao W, Zhang M, Wu R, Li Z. Controlled synthesis of Au–Fe3O4 hybrid hollow spheres with excellent SERS activity and catalytic properties. Dalton Trans 2014; 43:7998-8006. [DOI: 10.1039/c4dt00312h] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here demonstrated a facile one-pot hydrothermal method for the controlled synthesis of porous Au–Fe3O4 hybrid hollow spheres. The obtained spheres exhibit superior SERS sensitivity and excellent catalytic activity.
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Affiliation(s)
- Qian Gao
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei, P. R. China
- State Key Laboratory of Transducer Technology
- Chinese Academy of Sciences
| | - Aiwu Zhao
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei, P. R. China
- State Key Laboratory of Transducer Technology
- Chinese Academy of Sciences
| | - Hongyan Guo
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei, P. R. China
| | - Xucheng Chen
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei, P. R. China
| | - Zibao Gan
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei, P. R. China
| | - Wenyu Tao
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei, P. R. China
| | - Maofeng Zhang
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei, P. R. China
| | - Rong Wu
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei, P. R. China
| | - Zhenxin Li
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei, P. R. China
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36
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Chen L, Wang N, Wang X, Ai S. Protein-directed in situ synthesis of platinum nanoparticles with superior peroxidase-like activity, and their use for photometric determination of hydrogen peroxide. Mikrochim Acta 2013. [DOI: 10.1007/s00604-013-1068-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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37
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Saha A, Jana NR. Detection of Cellular Glutathione and Oxidized Glutathione Using Magnetic–Plasmonic Nanocomposite-Based “Turn-Off” Surface Enhanced Raman Scattering. Anal Chem 2013; 85:9221-8. [DOI: 10.1021/ac4019457] [Citation(s) in RCA: 114] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Arindam Saha
- Centre for Advanced Materials, Indian
Association for the Cultivation of Science, Kolkata 700032, India
| | - Nikhil R. Jana
- Centre for Advanced Materials, Indian
Association for the Cultivation of Science, Kolkata 700032, India
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38
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Zhang L, Dong WF, Sun HB. Multifunctional superparamagnetic iron oxide nanoparticles: design, synthesis and biomedical photonic applications. NANOSCALE 2013; 5:7664-7684. [PMID: 23877222 DOI: 10.1039/c3nr01616a] [Citation(s) in RCA: 132] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Superparamagnetic iron oxide nanoparticles (SPIONs) have shown great promise in biomedical applications. In this review, we summarize the recent advances in the design and fabrication of core-shell and hetero-structured SPIONs and further outline some exciting developments and progresses of these multifunctional SPIONs for diagnosis, multimodality imaging, therapy, and biophotonics.
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Affiliation(s)
- Lu Zhang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
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39
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Gonzàlez de Rivera F, Angurell I, Rossell MD, Erni R, Llorca J, Divins NJ, Muller G, Seco M, Rossell O. A General Approach To Fabricate Fe3O4Nanoparticles Decorated with Pd, Au, and Rh: Magnetically Recoverable and Reusable Catalysts for Suzuki CC Cross-Coupling Reactions, Hydrogenation, and Sequential Reactions. Chemistry 2013; 19:11963-74. [DOI: 10.1002/chem.201301769] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Indexed: 11/11/2022]
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40
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Wang L, Dou H, Lou Z, Zhang T. Encapsuled nanoreactors (Au@SnO₂): a new sensing material for chemical sensors. NANOSCALE 2013; 5:2686-91. [PMID: 23295974 DOI: 10.1039/c2nr33088a] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
New Au@SnO2 yolk-shell nanospheres have been successfully synthesized by using Au@SiO2 nanospheres as sacrificial templates. This process is environmentally friendly and is based on hydrothermal shell-by-shell deposition of polycrystalline SnO2 on spheriform Au@SiO2 nanotemplates. Au nanoparticles can be impregnated into the SnO2 nanospheres and the nanospheres show outer diameters of 110 nm and thicknesses of 15 nm. The possible growth model of the nanospheres is proposed. The gas sensing properties of the Au@SnO2 yolk-shell nanospheres were researched and compared with that of the hollow SnO2 nanospheres. The former shows lower operating temperature (210 °C), lower detection limit (5 ppm), faster response (0.3 s) and better selectivity. These improved sensing properties were attributed to the catalytic effect of Au, and enhanced electron depletion at the surface of the Au@SnO2 yolk-shell nanospheres.
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Affiliation(s)
- Lili Wang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, China
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41
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42
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Sebastian V, Calatayud MP, Goya GF, Santamaria J. Magnetically-driven selective synthesis of Au clusters on Fe3O4 nanoparticles. Chem Commun (Camb) 2013; 49:716-8. [PMID: 23223273 DOI: 10.1039/c2cc37355f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel procedure to direct the local synthesis of gold clusters on Fe(3)O(4) nanocrystals by means of alternating magnetic fields (AMFs) is demonstrated. This process allows growing gold selectively onto the heated magnetite surface, while keeping the synthesis solution comparatively cold. Sequential AMF cycles allowed fine-tuning the amount of gold on the magnetite surfaces.
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Affiliation(s)
- Víctor Sebastian
- Department of Chemical Engineering, Aragon Institute of Nanoscience (INA), University of Zaragoza, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain.
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43
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Wang L, Wang S, Xu M, Hu X, Zhang H, Wang Y, Huang W. A Au-functionalized ZnO nanowire gas sensor for detection of benzene and toluene. Phys Chem Chem Phys 2013; 15:17179-86. [DOI: 10.1039/c3cp52392f] [Citation(s) in RCA: 172] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Xie D, Su Q, Dong Z, Zhang J, Du G. l-cysteine-assisted preparation of porous NiO hollow microspheres with enhanced performance for lithium storage. CrystEngComm 2013. [DOI: 10.1039/c3ce41161c] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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45
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α-Fe2O3/PPy/Ag functional hybrid nanomaterials with core/shell structure: Synthesis, characterization and catalytic activity. POWDER TECHNOL 2012. [DOI: 10.1016/j.powtec.2011.12.064] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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46
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Chen YC, Zheng FC, Min YL, Wang T, Wang YX, Zhang YG. One-pot synthesis of Ag/β-Ni(OH)2 flower microspheres with enhanced photocatalytic performance. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2011.12.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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47
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Zhang J, Liu X, Wang S, Wu S, Cao B, Zheng S. Synthesis and catalytic activity of Au-supported porous TiO2 nanospheres for CO oxidation. POWDER TECHNOL 2012. [DOI: 10.1016/j.powtec.2011.11.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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48
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Wang X, Li X, Liu D, Song S, Zhang H. Green synthesis of Pt/CeO2/graphene hybrid nanomaterials with remarkably enhanced electrocatalytic properties. Chem Commun (Camb) 2012; 48:2885-7. [DOI: 10.1039/c2cc17409j] [Citation(s) in RCA: 117] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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49
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Liu X, Zhang J, Guo X, Wang S, Wu S. Core–shell α–Fe2O3@SnO2/Au hybrid structures and their enhanced gas sensing properties. RSC Adv 2012. [DOI: 10.1039/c1ra00811k] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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50
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Cao SW, Fang J, Shahjamali MM, Wang Z, Yin Z, Yang Y, Boey FYC, Barber J, Loo SCJ, Xue C. In situ growth of Au nanoparticles on Fe2O3 nanocrystals for catalytic applications. CrystEngComm 2012. [DOI: 10.1039/c2ce25746g] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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