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Sahraneshin Samani S, Sameiyan E, Tabatabaei Yazdi F, Mortazavi SA, Alibolandi M, Ramezani M, Taghdisi SM, Abnous K. Sandwich-type aptamer-based biosensors for thrombin detection. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:1985-2001. [PMID: 38502201 DOI: 10.1039/d3ay02196c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Thrombin, a proteolytic enzyme, plays an essential role in catalyzing many blood clotting reactions. Thrombin can act as a marker for some blood-related diseases, such as leukemia, thrombosis, Alzheimer's disease and liver disease. Therefore, its diagnosis is of great importance in the fields of biological and medical research. Biosensors containing sandwich-type structures have attracted much consideration owing to their superior features such as reproducible and stable responses with easy improvement in the sensitivity of detection. Sandwich-type platforms can be designed using a pair of receptors that are able to bind to diverse locations of the same target. Herein, we investigate recent advances in the progress and applications of thrombin aptasensors containing a sandwich-type structure, in which two thrombin-binding aptamers (TBAs) identify different parts of the thrombin molecule, leading to the formation of a sandwich structure and ultimately signal detection. We also discuss the pros and cons of these approaches and outline the most logical approach in each section.
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Affiliation(s)
- Somayeh Sahraneshin Samani
- Department of Food Science and Technology, Faculty of Agriculture, Ferdowsi University of Mashhad (FUM), Mashhad, Iran
| | - Elham Sameiyan
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Farideh Tabatabaei Yazdi
- Department of Food Science and Technology, Faculty of Agriculture, Ferdowsi University of Mashhad (FUM), Mashhad, Iran
| | - Sayed Ali Mortazavi
- Department of Food Science and Technology, Faculty of Agriculture, Ferdowsi University of Mashhad (FUM), Mashhad, Iran
| | - Mona Alibolandi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Mohammad Ramezani
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Seyed Mohammad Taghdisi
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Khalil Abnous
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.
- Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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Huang QQ, Chen J, Hu MY, Wang YL, Li Y, Fu F, Wei QH. Ionic Liquids-Driven Cluster-to-Cluster Conversion of Polyhydrido Copper(I) Clusters Cu 7H 5 to Cu 8H 6 and Cu 12H 9. Inorg Chem 2023; 62:14998-15005. [PMID: 37655478 DOI: 10.1021/acs.inorgchem.3c01830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Although ionic liquids (ILs) are of prime interest for the synthesis of various nanomaterials, they are scarcely utilized for the polyhydrido copper(I) [Cu(I)H] clusters. Herein, two air-stable Cu(I)H clusters, [Cu8H6(dppy)6](NTf2)2 (Cu8H6) and {Cu12H9(dppy)6[N(CN)2]3} (Cu12H9), are synthesized in high yields for the first time from the ILs-driven conversion of an unprecedented cluster [Cu7H5(dppy)6](ClO4)2 (Cu7H5) by a facile three-layers diffusion crystal (TLDC) method, strategically introducing IL-NTf2 and IL-N(CN)2 as two types of unusual interfacial crystallized templates, respectively. Their structures are fully characterized by various spectroscopic methods and X-ray crystallography, which shows that the anion of IL plays an important role as an anion template and an anion ligand in controlling the structural conversion of Cu(I)H clusters. Their photophysical properties are also investigated, and it is found that all reported clusters exhibit red luminescence with λem ranging from 600 to 690 nm.
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Affiliation(s)
- Qiu-Qin Huang
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Jian Chen
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Mei-Yue Hu
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Yu-Ling Wang
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Yi Li
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - FengFu Fu
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Qiao-Hua Wei
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
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Chen S, Cai D, Dong Q, Ma G, Xu C, Bao X, Yuan W, Wu B, Fang B. Silver nanoparticles-decorated extracellular matrix graft: fabrication and tendon reconstruction performance. Biomater Res 2023; 27:85. [PMID: 37710328 PMCID: PMC10503197 DOI: 10.1186/s40824-023-00428-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 09/03/2023] [Indexed: 09/16/2023] Open
Abstract
BACKGROUND The reconstruction of tendons with large defects requires grafts with high mechanical strength and is often hindered by complications such as infection and adhesion. Hence, grafts combining the advantages of mechanical resilience and antibacterial/antiadhesion activity are highly sought after. METHODS The silver nanoparticles (GA-Ag NPs) synthesized from gallic acid and silver nitrate were attached to a decellularized extracellular matrix (Decellularized Tendon crosslinking GA-AgNPs, DT-Ag). We examined the histological structure, mechanical property, morphology, Zeta potential, cytotoxicity, antibacterial properties, antioxidant and anti-inflammatory properties, and ability of the DT-Ag to treat tendon defects in animals. RESULTS Approximately 108.57 ± 0.94 μg GA-Ag NPs loaded per 50 mg DT, the cross-linked part of GA-Ag NPs was 65.47 ± 0.57%, which provided DT-Ag with long-lasting antibacterial activity. Meanwhile, GA endowed DT-Ag with good antioxidant and anti-inflammatory activities. Additionally, The DT-Ag facilitated M2 macrophage polarization, and suppressed fibrin deposition by hindering fibroblast adhesion. Mormore, the main advantages of DT-Ag, namely its long-lasting antibacterial activity (tested using Escherichia coli and Staphylococcus aureus as models) and the ability to prevent tissue adhesion were confirmed in vivo. CONCLUSION The fabricated multifunctional tendon graft was highly hydrophilic, biocompatible, and mechanically resilient, and concluded to be well suited for dealing with the main complications of surgical tendon reconstruction and has bright application prospects.
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Affiliation(s)
- Sunfang Chen
- Department of Orthopedics, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, 310000, China
- Department of Orthopedics, the Central Hospital Affiliated to Shaoxing University, Shaoxing, 312030, China
| | - Dan Cai
- Department of Orthopedics, the First People's Hospital of Huzhou, First Affiliated Hospital of Huzhou University, Huzhou, 313000, China
| | - Qi Dong
- Department of Orthopedics, Honghui Hospital, Xi'an Jiao Tong University, Xi'an City, 710054, China
| | - Gaoxiang Ma
- Department of Orthopedics, the Central Hospital Affiliated to Shaoxing University, Shaoxing, 312030, China
| | - Chennan Xu
- Department of Orthopedics, the Central Hospital Affiliated to Shaoxing University, Shaoxing, 312030, China
| | - Xiaogang Bao
- Department of Orthopedics, The Spine Surgical Center, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, China
| | - Wei Yuan
- Department of Orthopedics, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, China.
| | - Bing Wu
- Department of Orthopedics, the Central Hospital Affiliated to Shaoxing University, Shaoxing, 312030, China.
| | - Bin Fang
- Department of Orthopedics, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, 310000, China.
- Department of Orthopedics, the Central Hospital Affiliated to Shaoxing University, Shaoxing, 312030, China.
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A Novel Ag@AgCl Nanoparticle Synthesized by Arctic Marine Bacterium: Characterization, Activity and Mechanism. Int J Mol Sci 2022; 23:ijms232415558. [PMID: 36555211 PMCID: PMC9779459 DOI: 10.3390/ijms232415558] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 12/01/2022] [Indexed: 12/13/2022] Open
Abstract
An additive- and pollution-free method for the preparation of biogenic silver and silver chloride nanoparticles (Ag@AgCl NPs) was developed from the bacteria Shewanella sp. Arc9-LZ, which was isolated from the deep sea of the Arctic Ocean. The optimal synthesizing conditions were explored, including light, pH, Ag+ concentration and time. The nanoparticles were studied by means of ultraviolet-visible (UV-Vis) spectrophotometry, energy dispersive spectrometry (EDS), X-ray diffraction (XRD) and inductively coupled plasma optical emission spectrometers (ICP-OES). The transmission electron microscope (TEM) showed that the nanoparticles were spherical and well dispersed, with particle sizes less than 20.00 nm. With Ag@AgCl nanoparticles, the kinetic rate constants for congo red (CR) and rhodamine B (RhB) dye degradation were 2.74 × 10-1 min-1 and 7.78 × 10-1 min-1, respectively. The maximum decolourization efficiencies of CR and RhB were 93.36% and 99.52%, respectively. Ag@AgCl nanoparticles also showed high antibacterial activities against the Gram-positive and Gram-negative bacteria. The Fourier transform infrared spectroscopy (FTIR) spectrum indicated that the O-H, N-H and -COO- groups in the supernatant of Arc9-LZ might participate in the reduction, stabilization and capping of nanoparticles. We mapped the schematic diagram on possible mechanisms for synthesizing Ag@AgCl NPs.
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Mhlwatika Z, Bingwa N. Kinetic evaluation of perovskites-type catalysts in the reduction of 4-nitrophenol: A mechanistic elucidation study. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Roostaee M, Sheikhshoaie I, Karimi Maleh H. Low-temperature synthesis of hetero-structures of magnetically separable iron oxide@Au-rGO nanocomposite for efficient degradation of organic dye under visible light irradiation. ENVIRONMENTAL RESEARCH 2022; 205:112510. [PMID: 34875260 DOI: 10.1016/j.envres.2021.112510] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 11/18/2021] [Accepted: 12/01/2021] [Indexed: 06/13/2023]
Abstract
In the present study, Fe3O4@Au core-shell nanoparticles decorated on reduce graphene oxide (Fe3O4@Au/rGO) nanocomposite were synthesized using the reduction method by sodium citrate, Hummer's method, and hydrothermal method, respectively. The as-prepared nanostructures were characterized by X-ray diffraction (XRD), Energy Dispersive X-ray (EDX), transmission electron microscopy (TEM), scanning electron microscopy (SEM)to assess the surface features, crystallinity and morphological characteristics. These nanostructures were employed for photocatalytic degradation of crystal violet (CV), and amongst them, Fe3O4@Au/rGO nanocomposite offered the best results under the visible light irradiation and optimal conditions. The effect of the amount of nano-photocatalyst, initial CV concentration, the initial pH, temperature, stirring speed, and degradation time was evaluated individually. A 100% degradation was obtained after 1 min in the presence of 0.008 g nano-photocatalyst, and also 100% of degradation was achieved after 5 min in the presence of 0.005 g of the prepared nano-photocatalyst. After a few tests, its photocatalytic performance was retained, implying the superior stability of Fe3O4@Au/rGO nanocomposite. The kinetic study of photocatalytic degradation also indicated that the fit model for the kinetic reaction was the pseudo-second-order kinetic model. Finally, the photocatalytic degradation of real samples with synthesized nanocomposite showed promising results.
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Affiliation(s)
- Maryam Roostaee
- Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Iran Sheikhshoaie
- Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, Iran.
| | - Hassan Karimi Maleh
- Department of Chemical Engineering and Energy, Laboratory of Nanotechnology, Quchan University of Technology, Quchan, Iran.
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Huang J, Sui X, Qi H, Lan X, Liu S, Zhang L. Zwitterionic peptide-functionalized highly dispersed carbon nanotubes for efficient wastewater treatment. J Mater Chem B 2022; 10:2661-2669. [PMID: 35043824 DOI: 10.1039/d1tb02348a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Multi-walled carbon nanotubes (MWCNTs) have displayed great potential as catalyst carriers due to their nanoscale structure and large specific surface area. However, their hydrophobicity and poor dispersibility in water restrict their applications in aqueous environments. Herein, the dispersibility of MWCNTs was significantly enhanced with a chimeric protein MPKE which consisted of a zwitterionic peptide unit and a mussel adhesive protein unit. The MPKE could be easily attached to MWCNTs (MPKE-MWCNTs) by a simple stirring process due to the versatile adhesion ability of mussel adhesive unit. As expected, the MPKE-MWCNTs displayed outstanding dispersibility in water (>7 months), as well as in alkaline solutions (pH = 12) and organic solvents (DMSO and ethanol) due to the hydrophilicity of the zwitterionic peptide unit. Moreover, the MPKE-MWCNTs were used as silver nanoparticle carriers for the reduction of 4-nitrophenol in wastewater, with the normalized rate constant knor up to 32.9 s-1 mmol-1. Meanwhile, they also exhibited excellent biocompatibility and antibacterial activity, which were favorable for wastewater treatment. This work provides a facile strategy for MWCNT modification, functionalization and applications in aqueous environments.
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Affiliation(s)
- Jie Huang
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), Tianjin University, Tianjin 300350, P. R. China.
| | - Xiaojie Sui
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), Tianjin University, Tianjin 300350, P. R. China.
| | - Haishan Qi
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), Tianjin University, Tianjin 300350, P. R. China.
| | - Xiang Lan
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), Tianjin University, Tianjin 300350, P. R. China.
| | - Simin Liu
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), Tianjin University, Tianjin 300350, P. R. China.
| | - Lei Zhang
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), Tianjin University, Tianjin 300350, P. R. China.
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Paradisi E, Rosa R, Baldi G, Dami V, Cioni A, Lorenzi G, Leonelli C. Microwave-Assisted Vacuum Synthesis of TiO 2 Nanocrystalline Powders in One-Pot, One-Step Procedure. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 12:149. [PMID: 35010100 PMCID: PMC8746694 DOI: 10.3390/nano12010149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/24/2021] [Accepted: 12/27/2021] [Indexed: 01/02/2023]
Abstract
A new method for fast and simple synthesis of crystalline TiO2 nanoparticles with photocatalytic activity was developed by carrying out a classic sol-gel reaction directly under vacuum. The use of microwaves for fast heating of the reaction medium further reduces synthesis times. When the solvent is completely removed by vacuum, the product is obtained in the form of a powder that can be easily redispersed in water to yield a stable nanoparticle suspension, exhibiting a comparable photocatalytic activity with respect to a commercial product. The present methodology can, therefore, be considered a process intensification procedure for the production of nanotitania.
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Affiliation(s)
- Enrico Paradisi
- Department of Engineering “Enzo Ferrari” (DIEF), University of Modena and Reggio Emilia, 41125 Modena, Italy;
| | - Roberto Rosa
- Department of Sciences and Methods for Engineering, University of Modena and Reggio Emilia, 42122 Reggio Emilia, Italy;
| | - Giovanni Baldi
- Ce.Ri.Col. Colorobbia Research Centre, Colorobbia Consulting S.R.L., 50059 Sovigliana-Vinci, Italy; (G.B.); (V.D.); (A.C.); (G.L.)
| | - Valentina Dami
- Ce.Ri.Col. Colorobbia Research Centre, Colorobbia Consulting S.R.L., 50059 Sovigliana-Vinci, Italy; (G.B.); (V.D.); (A.C.); (G.L.)
| | - Andrea Cioni
- Ce.Ri.Col. Colorobbia Research Centre, Colorobbia Consulting S.R.L., 50059 Sovigliana-Vinci, Italy; (G.B.); (V.D.); (A.C.); (G.L.)
| | - Giada Lorenzi
- Ce.Ri.Col. Colorobbia Research Centre, Colorobbia Consulting S.R.L., 50059 Sovigliana-Vinci, Italy; (G.B.); (V.D.); (A.C.); (G.L.)
| | - Cristina Leonelli
- Department of Engineering “Enzo Ferrari” (DIEF), University of Modena and Reggio Emilia, 41125 Modena, Italy;
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De A, Kalita D, Jain P. Biofabricated Silver Nanoparticles and Nanocomposites as Green Catalyst to Mitigate Dye Pollution in Water‐A Review. ChemistrySelect 2021. [DOI: 10.1002/slct.202101987] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Anindita De
- Department of Chemistry & Biochemistry School of Basic Sciences and Research Sharda University Greater Noida India
| | - Dristie Kalita
- Department of Chemistry & Biochemistry School of Basic Sciences and Research Sharda University Greater Noida India
| | - Preeti Jain
- Department of Chemistry & Biochemistry School of Basic Sciences and Research Sharda University Greater Noida India
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Chikkanayakanahalli Paramesh C, Halligudra G, Gangaraju V, Sriramoju JB, Shastri M, Kachigere B. H, Habbanakuppe D. P, Rangappa D, Kanchugarakoppal Subbegowda R, Doddakunche Shivaramu P. Silver nanoparticles synthesized using saponin extract of Simarouba glauca oil seed meal as effective, recoverable and reusable catalyst for reduction of organic dyes. RESULTS IN SURFACES AND INTERFACES 2021. [DOI: 10.1016/j.rsurfi.2021.100005] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Xu Z, Huang G, An C, Huang J, Chen X, Xin X, Song P, Feng R, Li Y. Low-cost microbiological purification using a new ceramic disk filter functionalized by chitosan/TiO2 nanocomposites. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116984] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Varshney S, Bar‐Ziv R, Zidki T. On the Remarkable Performance of Silver‐based Alloy Nanoparticles in 4‐Nitrophenol Catalytic Reduction. ChemCatChem 2020. [DOI: 10.1002/cctc.202000584] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shalaka Varshney
- Department of Chemical Sciences, and the Center for Radical Reactions Ariel University Kyriat Hamada 3 Ariel 40700 Israel
| | - Ronen Bar‐Ziv
- Department of Chemistry Nuclear Research Center Negev Beer-Sheva 84190 Israel
| | - Tomer Zidki
- Department of Chemical Sciences, and the Center for Radical Reactions Ariel University Kyriat Hamada 3 Ariel 40700 Israel
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Cao HL, Liu C, Cai FY, Qiao XX, Dichiara AB, Tian C, Lü J. In situ immobilization of ultra-fine Ag NPs onto magnetic Ag@RF@Fe 3O 4 core-satellite nanocomposites for the rapid catalytic reduction of nitrophenols. WATER RESEARCH 2020; 179:115882. [PMID: 32402862 DOI: 10.1016/j.watres.2020.115882] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 04/18/2020] [Accepted: 04/23/2020] [Indexed: 06/11/2023]
Abstract
Novel magnetic Ag@RF@Fe3O4 core-satellite (MCS) nanocomposites were prepared through in situ photoreduction upon bridging Fe(III) and Ag+ via hydroxyl groups in resorcinol formaldehyde (RF) resin by virtue of the coordination effect. The catalytic activity of MCS nanocomposites was evaluated based on catalytic 4-nitrophenol (4-NP) reduction with NaBH4 as the reducing agent. It was noteworthy that the MCS-3 was beneficial to obtain a superior reaction rate constant of 2.27 min-1 and a TOF up to 72.7 h-1. Moreover, the MCS could be easily recovered by applying an external magnetic field and was reused for five times without significantly decrease in catalytic activity. Kinetic and thermodynamic study revealed that catalytic 4-NP reduction using MCS nanocatalysts obeyed the Langmuir-Hinshelwood mechanism and was controlled by the diffusion rate of substrates. Overall, the immobilization of ultra-fine Ag nanoparticles and the extremely negative potentials around MCS nanocomposites, which were effective for the diffusion of reactants, synergistically accelerated the catalytic reduction reactions.
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Affiliation(s)
- Hai-Lei Cao
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, PR China; School of Environmental and Forest Sciences, University of Washington, Seattle, WA, 98195, USA; Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, PR China.
| | - Cheng Liu
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, PR China
| | - Feng-Ying Cai
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, PR China
| | - Xing-Xing Qiao
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, PR China
| | - Anthony B Dichiara
- School of Environmental and Forest Sciences, University of Washington, Seattle, WA, 98195, USA
| | - Chungui Tian
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, PR China
| | - Jian Lü
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, PR China.
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Liu R, Hou Y, Jiang S, Nie B. Ag(I)-Hived Fullerene Microcube as an Enhanced Catalytic Substrate for the Reduction of 4-Nitrophenol and the Photodegradation of Orange G Dye. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:5236-5242. [PMID: 32306732 DOI: 10.1021/acs.langmuir.0c00580] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We report a facile approach to fabricate an Ag-embedded fullerene (C60) catalyst by the chemical reduction of the AgNO3 complex encapsulated fullerene microcrystal, which showed an enhanced catalytic reduction of 4-nitrophenol because of the strong absorption and propagation of H2 along the fullerene surface. With the aid of visible-light radiation, photodegradation of orange G dye is achieved through the formation of an electron donor-acceptor dyad between plasmon Ag nanostructures and fullerene molecules, which effectively offsets the "electron-hole" recombination. Neither Ag nanoparticle nor fullerene crystal used in isolation could perform this chemical conversion, implying that the metal-fullerene hybrid structure is imperative for performing the catalytic reaction. The obtained Ag-embedded fullerene crystal is characterized by scanning electron microscopy (SEM), associated energy-dispersive X-ray spectroscopy (EDX) imaging, and X-ray photoelectron spectroscopy (XPS) and demonstrates that the present hybrid materials would add a supplemental member to a family of photocatalysts toward the organic synthesis and wastewater remediation.
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Affiliation(s)
- Renxuan Liu
- Department of Chemistry and Material Science, South-Central University of Nationalities, Wuhan 430074, P. R. China
| | - Ying Hou
- Department of Chemistry and Material Science, South-Central University of Nationalities, Wuhan 430074, P. R. China
| | - Shangjun Jiang
- Department of Chemistry and Material Science, South-Central University of Nationalities, Wuhan 430074, P. R. China
| | - Bei Nie
- Department of Chemistry and Material Science, South-Central University of Nationalities, Wuhan 430074, P. R. China
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Science, Chongqing 400714, P. R. China
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Jatav S, Furlan KP, Liu J, Hill EH. Heterostructured Monolayer MoS 2 Nanoparticles toward Water-Dispersible Catalysts. ACS APPLIED MATERIALS & INTERFACES 2020; 12:19813-19822. [PMID: 32227875 DOI: 10.1021/acsami.0c02246] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
MoS2 is a 2D semiconductor where exfoliation to a single layer results in improved catalytic properties. However, its high surface energy can lead to extensive aggregation, resulting in degraded catalytic performance and stability. Combined with a lack of dispersibility in water, this represents a pitfall for catalysis in the aqueous phase. Herein, we present the use of nanoscopic layered silicates pillared with a cationic surfactant to template the growth of MoS2 in the interlayer space. This provides heterostructured layered nanoparticles ∼25 nm wide by 3-8 nm thick containing isolated MoS2 layers. The resulting nanohybrids retain the disc-like morphology and surface chemistry of the clays, providing good aqueous stability, while also providing access to the catalytic edge-sites of the MoS2 layer. In addition to significant enhancement of catalytic dye degradation, molecular aggregation on the highly charged clay interface is comparable to unmodified clays. These particles are ideal for studies of charge-transport properties in confined semiconductor layers, as well as hierarchical self-assembly into functional materials. This study paves the way to colloidal synthesis of nanoparticulate heterostructures with other functional layered materials, particularly where particle exfoliation, covalent modification, and aqueous stability are concerns.
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Affiliation(s)
- Sanjay Jatav
- Institute of Advanced Ceramics, Hamburg University of Technology, Hamburg 21073, Germany
| | - Kaline P Furlan
- Institute of Advanced Ceramics, Hamburg University of Technology, Hamburg 21073, Germany
| | - Junying Liu
- Institute of Advanced Ceramics, Hamburg University of Technology, Hamburg 21073, Germany
| | - Eric H Hill
- Institute of Advanced Ceramics, Hamburg University of Technology, Hamburg 21073, Germany
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16
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Vijilvani C, Bindhu M, Frincy F, AlSalhi MS, Sabitha S, Saravanakumar K, Devanesan S, Umadevi M, Aljaafreh MJ, Atif M. Antimicrobial and catalytic activities of biosynthesized gold, silver and palladium nanoparticles from Solanum nigurum leaves. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020; 202:111713. [DOI: 10.1016/j.jphotobiol.2019.111713] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/08/2019] [Accepted: 11/14/2019] [Indexed: 11/26/2022]
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17
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Yang Y, Duan H, Xia S, Lü C. Construction of a thermo-responsive copolymer-stabilized Fe3O4@CD@PdNP hybrid and its application in catalytic reduction. Polym Chem 2020. [DOI: 10.1039/c9py01529a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A thermo-responsive copolymer stabilized Fe3O4@CDs@PdNP hybrid was fabricated as a nanocatalyst for catalytic reduction reaction with excellent recyclability and controllable thermo-responsive catalytic property.
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Affiliation(s)
- Yu Yang
- College of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Haichao Duan
- College of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Siwen Xia
- College of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Changli Lü
- College of Chemistry
- Northeast Normal University
- Changchun
- China
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18
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Liu W, Yuan K, Liu P, Chen M. Construction of detachable core/shell Fe3O4@C supported noble metal catalysts and their catalytic performance. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123729] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Impedimetric aptasensor for Pseudomonas aeruginosa by using a glassy carbon electrode modified with silver nanoparticles. Mikrochim Acta 2019; 186:725. [PMID: 31655899 DOI: 10.1007/s00604-019-3858-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 09/19/2019] [Indexed: 10/25/2022]
Abstract
An aptasensor is described for the ultrasensitive detection of Pseudomonas aeruginosa (P. aeruginosa). A glassy carbon electrode (GCE) was first modified by electrodeposition of silver nanoparticles (AgNPs). Immobilization of NH2-aptamer was covalently attached to the AgNP/GCE surface. The morphology, distribution and size of the sensor were characterized by field emission scanning electron microscopy. Cyclic voltammetry and electrical impedance spectroscopy were used to study conductivity of the aptasensor and the electrochemical properties. Detection of P. aeruginosa was carried out by evaluation of the charge transfer resistance after and before the adding of P.aeruginosa and by using the hexacyanoferrate redox system as an electrochemical probe. The impedance increases on going from 102 to 107 CFU·mL-1 concentrations of P. aeruginosa, and the detection limit is 33 CFU·mL-1 (for S/N = 3). The assay was successfully applied for the determination of P. aeruginosa in spiker serum samples. Graphical abstract Schematic representation of an impedimetric assay for Pseudomonas aeruginosa by using a [Fe(CN)6]3-/4- probe based on immobilization of amino-modified aptamer onto a glassy carbon electrode (GCE) modified with silver nanoparticles (AgNPs): Incubation with P. aeruginosa leads to an increase of the charge-transfer resistance.
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20
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Liang Y, Manioudakis J, Macairan JR, Askari MS, Forgione P, Naccache R. Facile Aqueous-Phase Synthesis of an Ultrasmall Bismuth Nanocatalyst for the Reduction of 4-Nitrophenol. ACS OMEGA 2019; 4:14955-14961. [PMID: 31552336 PMCID: PMC6751691 DOI: 10.1021/acsomega.9b01736] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 08/06/2019] [Indexed: 05/28/2023]
Abstract
Bismuth metallic nanoparticles have evoked considerable interest in catalysis owing to their small size, high surface area-to-volume ratio, and low toxicity. However, the need for toxic reductants and organic solvents in their synthesis often limits their desirability for application development. Here, we describe a green strategy to synthesize bismuth nanodots via the redox reactions between bismuth nitrate and d-glucose, in the presence of poly(vinylpyrrolidone) in the basic aqueous phase. Both reagents play a crucial role in the formation of monodisperse bismuth nanodots acting as mild reducing and capping agents, respectively. We further demonstrate that the catalytic activity of these dots via the successful reduction of the environmental contaminant 4-nitrophenol to its useful 4-aminophenol analogue requiring only 36 μg/mL nanocatalyst for 20 mM of the substrate. Moreover, they can be recovered and recycled in multiple reactions before the onset of an appreciable loss of catalytic activity. The proposed facile synthetic route and inexpensive matrix materials lead the way to access bismuth nanodots for both the fundamental study of reactions and their industrial catalysis applications.
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Affiliation(s)
- Yanjie Liang
- Department
of Chemistry and Biochemistry, Center for NanoScience Research, and Quebec Centre
for Advanced Materials, Concordia University, Montreal, Quebec H4B 1R6, Canada
| | - John Manioudakis
- Department
of Chemistry and Biochemistry, Center for NanoScience Research, and Quebec Centre
for Advanced Materials, Concordia University, Montreal, Quebec H4B 1R6, Canada
| | - Jun-Ray Macairan
- Department
of Chemistry and Biochemistry, Center for NanoScience Research, and Quebec Centre
for Advanced Materials, Concordia University, Montreal, Quebec H4B 1R6, Canada
| | - Mohammad S. Askari
- Department
of Chemistry and Biochemistry, Center for NanoScience Research, and Quebec Centre
for Advanced Materials, Concordia University, Montreal, Quebec H4B 1R6, Canada
- Centre
for Green Chemistry and Catalysis, Montreal, Quebec H4B 1R6, Canada
| | - Pat Forgione
- Department
of Chemistry and Biochemistry, Center for NanoScience Research, and Quebec Centre
for Advanced Materials, Concordia University, Montreal, Quebec H4B 1R6, Canada
- Centre
for Green Chemistry and Catalysis, Montreal, Quebec H4B 1R6, Canada
| | - Rafik Naccache
- Department
of Chemistry and Biochemistry, Center for NanoScience Research, and Quebec Centre
for Advanced Materials, Concordia University, Montreal, Quebec H4B 1R6, Canada
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21
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Liu J, Chen R, Zhu X, Liao Q, Ye D, Zhang B, Feng H, Liu M, Chen G, Wang K. In Situ Synthesis of a Multilayered (PSS-PAH-Pd) n Catalytic Hybrid Film Synthesized by the Layer-by-Layer Self-Assembly. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b01560] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jian Liu
- Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400030, P. R. China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, P. R. China
| | - Rong Chen
- Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400030, P. R. China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, P. R. China
| | - Xun Zhu
- Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400030, P. R. China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, P. R. China
| | - Qiang Liao
- Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400030, P. R. China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, P. R. China
| | - Dingding Ye
- Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400030, P. R. China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, P. R. China
| | - Biao Zhang
- Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400030, P. R. China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, P. R. China
| | - Hao Feng
- Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400030, P. R. China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, P. R. China
| | - Ming Liu
- Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400030, P. R. China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, P. R. China
| | - Gang Chen
- Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400030, P. R. China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, P. R. China
| | - Kun Wang
- Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400030, P. R. China
- Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400030, P. R. China
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22
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Verma C, Ebenso EE, Quraishi M. Transition metal nanoparticles in ionic liquids: Synthesis and stabilization. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.12.063] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Anbu N, Vijayan C, Dhakshinamoorthy A. A Versatile, Mild and Selective Reduction of Nitroarenes to Aminoarenes Catalyzed by CeO2
Nanoparticles with Hydrazine Hydrate. ChemistrySelect 2019. [DOI: 10.1002/slct.201803566] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nagaraj Anbu
- School of Chemistry; Madurai Kamaraj University; Madurai- 625 021, Tamil Nadu India
| | - Chellappa Vijayan
- School of Chemistry; Madurai Kamaraj University; Madurai- 625 021, Tamil Nadu India
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24
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Catalytic reduction of p-nitrophenol and methylene blue by microbiologically synthesized silver nanoparticles. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 93:623-629. [DOI: 10.1016/j.msec.2018.08.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 07/25/2018] [Accepted: 08/07/2018] [Indexed: 11/20/2022]
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25
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D. AJ, R. P, A. AJA, G.V. S, M. U. Colloidal design of Au@Pt nanoflowers with good catalytic activity and SERS investigations on river soil. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.06.055] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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26
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Vijayan R, Joseph S, Mathew B. Eco-friendly synthesis of silver and gold nanoparticles with enhanced antimicrobial, antioxidant, and catalytic activities. IET Nanobiotechnol 2018; 12:850-856. [PMID: 30104462 PMCID: PMC8676156 DOI: 10.1049/iet-nbt.2017.0311] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 03/09/2018] [Accepted: 04/03/2018] [Indexed: 12/12/2022] Open
Abstract
The present work is emphasised on the bio-fabrication of silver and gold nanoparticles in a single step by a microwave-assisted method using the leaf extract of Synedrella nodiflora as both reducing and stabilising agent. The synthesised nanoparticles are highly stable and show surface plasmon resonance peak at 413 and 535 nm, respectively, for silver and gold nanoparticles in UV-Vis spectrum. The functional group responsible for the reduction of metal ions were obtained from Fourier transform infrared spectroscopy. The crystalline nature of nanoparticles with face-centred cubic geometry was confirmed by the X-ray diffraction and selected area electron diffraction patterns. The morphology and sizes of the silver and gold nanoparticles were obtained from transmission electron microscopy images. The nanoparticles exhibit effective antimicrobial activities against various pathogenic strains. These antimicrobial properties were analysed by employing agar well diffusion method. The nanoparticles show significant antioxidant properties, and it was determined using 2, 2-diphenyl-1-picrylhydrazyl assay. The nanoparticles also show potent catalytic activity in the degradation of anthropogenic pollutant dyes Congo red and eosin Y by excess NaBH4. Thus, the current study demonstrates the potential use of S. nodiflora as a reducing and stabilising agent for the synthesis of silver and gold nanoparticles and their relevance in the field of biomedicine and catalysis.
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Affiliation(s)
- Remya Vijayan
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam 686560, Kerala, India
| | - Siby Joseph
- Department of Chemistry, St. George's College, Aruvithura, Kottayam 686122, Kerala, India
| | - Beena Mathew
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam 686560, Kerala, India.
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27
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Green synthesis of the Fe3O4@polythiophen-Ag magnetic nanocatalyst using grapefruit peel extract: Application of the catalyst for reduction of organic dyes in water. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.04.052] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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28
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Li X, Zhao L, Shao C, Li X, Sun W, Liu Y. Immobilization of ultrafine Ag nanoparticles on well-designed hierarchically porous silica for high-performance catalysis. J Colloid Interface Sci 2018; 530:345-352. [PMID: 29982027 DOI: 10.1016/j.jcis.2018.06.045] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Revised: 06/14/2018] [Accepted: 06/19/2018] [Indexed: 01/21/2023]
Abstract
Catalyst immobilization is of much significance not only for maintaining the high activity of the ultrafine catalyst, but also for the separation of catalyst during the practical application. Herein, a novel support material, three-dimensional hierarchically porous silica (HPS) with interconnected micro-meso-macro pores and high specific surface area was successfully fabricated though a freeze-drying technique in the presence of poly(vinyl alcohol) (PVA) and subsequent calcination process. A series of characterizations revealed that the specific surface area of HPS can be well adjusted by changing the addition of PVA. The specific surface area of HPS was as high as 360 m2 g-1, which was 211-fold higher than HPS-0 (silica prepared without using PVA). To demonstrate the potential application of such novel support material, highly dispersed silver nanoparticles (AgNPs) were immobilized on the surfaces of HPS and HPS-0 through in-situ reduction. By contrast, the catalytic activity of AgNPs anchored on HPS (531 s-1 g-1) was about 42-fold higher than that of AgNPs anchored on HPS-0 (12.67 s-1 g-1). The significantly enhanced catalytic activity of AgNPs/HPS was believed to be related to their high specific surface area and interconnected macroporous scaffolds, which could provide numerous reactive sites and mass transfer routes for the reactants.
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Affiliation(s)
- Xiaowei Li
- Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory of UV-Emitting Materials and Technology (Northeast Normal University), Ministry of Education, 5268 Renmin Street, Changchun 130024, China
| | - Ling Zhao
- Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory of UV-Emitting Materials and Technology (Northeast Normal University), Ministry of Education, 5268 Renmin Street, Changchun 130024, China
| | - Changlu Shao
- Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory of UV-Emitting Materials and Technology (Northeast Normal University), Ministry of Education, 5268 Renmin Street, Changchun 130024, China.
| | - Xinghua Li
- Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory of UV-Emitting Materials and Technology (Northeast Normal University), Ministry of Education, 5268 Renmin Street, Changchun 130024, China.
| | - Wei Sun
- Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory of UV-Emitting Materials and Technology (Northeast Normal University), Ministry of Education, 5268 Renmin Street, Changchun 130024, China
| | - Yichun Liu
- Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory of UV-Emitting Materials and Technology (Northeast Normal University), Ministry of Education, 5268 Renmin Street, Changchun 130024, China
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29
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Liu A, Yang L, Traulsen CHH, Cornelissen JJLM. Immobilization of catalytic virus-like particles in a flow reactor. Chem Commun (Camb) 2018. [PMID: 28640305 DOI: 10.1039/c7cc03024j] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A functional microfluidic reactor is constructed by the immobilization of gold containing virus-based protein cages that catalyze the reduction of nitro-arenes with high efficiency.
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Affiliation(s)
- A Liu
- Biomolecular Nanotechnology (BNT), MESA+ Institute for Nanotechnology, University of Twente, The Netherlands.
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30
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A novel wound dressing based on a Konjac glucomannan/silver nanoparticle composite sponge effectively kills bacteria and accelerates wound healing. Carbohydr Polym 2018; 183:70-80. [DOI: 10.1016/j.carbpol.2017.11.029] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 11/06/2017] [Accepted: 11/07/2017] [Indexed: 11/23/2022]
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31
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Pashaei M, Mehdipour E. Silver nanoparticles supported on ionic-tagged magnetic hydroxyapatite as a highly efficient and reusable nanocatalyst for hydrogenation of nitroarenes in water. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4226] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Mokhtar Pashaei
- Department of Chemistry, Faculty of Science; Lorestan University; Khoramabad Iran
| | - Ebrahim Mehdipour
- Department of Chemistry, Faculty of Science; Lorestan University; Khoramabad Iran
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32
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Hemmati S, Mehrazin L, Ghorban H, Garakani SH, Mobaraki TH, Mohammadi P, Veisi H. Green synthesis of Pd nanoparticles supported on reduced graphene oxide, using the extract of Rosa canina fruit, and their use as recyclable and heterogeneous nanocatalysts for the degradation of dye pollutants in water. RSC Adv 2018; 8:21020-21028. [PMID: 35542342 PMCID: PMC9080873 DOI: 10.1039/c8ra03404d] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 06/20/2018] [Accepted: 05/26/2018] [Indexed: 11/21/2022] Open
Abstract
The current study suggests a convenient synthesis of in situ, ecofriendly and well-dispersed palladium nanoparticles with narrow and small dimension distributions on a graphene oxide (GO) surface using a Rosa canina fruit extract as a stabilizer and reducing agent without the addition of any other stabilizers or surfactants. The as-synthesized nanocatalyst (Pd NPs/RGO) was assessed with XRD, UV-vis, FE-SEM, EDS, TEM, ICP and WDX. The obtained heterogeneous nanocatalyst showed catalytic performance for reducing 4-nitrophenol (4-NP), rhodamine B (RhB) and methylene blue (MB) at ambient temperature in an ecofriendly medium. The catalyst was retained by centrifugation and reused several times with no considerable change in its catalytic performance. We suggests a convenient synthesis of in situ, ecofriendly and well-dispersed Pd nanoparticles with narrow and small dimension distributions on graphene oxide (GO) using Rosa canina extract as a reducing agent and as the only stabilizer.![]()
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Affiliation(s)
- Saba Hemmati
- Department of Pharmaceutical Chemistry
- Faculty of Pharmaceutical Chemistry
- Pharmaceutical Sciences Branch, Islamic Azad University, (IAUPS)
- Tehran
- Iran
| | - Lida Mehrazin
- Department of Chemistry
- Payame Noor University
- Tehran
- Iran
| | | | | | | | - Pourya Mohammadi
- Department of Pharmaceutical Chemistry
- Faculty of Pharmaceutical Chemistry
- Pharmaceutical Sciences Branch, Islamic Azad University, (IAUPS)
- Tehran
- Iran
| | - Hojat Veisi
- Department of Pharmaceutical Chemistry
- Faculty of Pharmaceutical Chemistry
- Pharmaceutical Sciences Branch, Islamic Azad University, (IAUPS)
- Tehran
- Iran
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33
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Thawarkar SR, Thombare B, Munde BS, Khupse ND. Kinetic investigation for the catalytic reduction of nitrophenol using ionic liquid stabilized gold nanoparticles. RSC Adv 2018; 8:38384-38390. [PMID: 35559095 PMCID: PMC9090133 DOI: 10.1039/c8ra07404f] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 10/29/2018] [Indexed: 11/21/2022] Open
Abstract
We demonstrate the synthesis of gold nanoparticles (AuNP) stabilized by 1-butyl-3-hexadecyl imidazolium bromide (Au@[C4C16Im]Br) and their use as a catalyst for the reduction of nitrophenol. The AuNPs show excellent stability in presence of [C4C16Im]Br ionic liquids for the reduction of 4-nitrophenol and 2-nitrophenol using NaBH4 as a reducing agent. The detailed kinetics for the reduction of 4-nitrophenol and 2-nitrophenol were investigated and the catalytic activity of Au@[C4C16Im]Br was evaluated. The pseudo first-order rate constant (kapp) values for 4-nitrophenol was observed to be greater than that of 2-nitrophenol and explained on the basis of hydrogen bonding present in 2-nitrophenol. Au@[C4C16Im]Br showed good separability and reusability and hence, it can be used for the complete reduction of nitrophenols in multiple cycles. The Langmuir–Hinshelwood reaction mechanism is elucidated for reduction of 4-nitrophenol by Au@[C4C16Im]Br nanocatalyst on the basis of the kapp values. The thermodynamic activation parameters such as activation energy, enthalpy of activation and entropy of activation were determined and explained using the temperature dependent kinetics for the reduction of nitrophenol using Au@[C4C16Im]Br. The above results reveal that the Au@[C4C16Im]Br nanocatalyst demonstrates excellent catalytic performance for the reduction of nitrophenol by NaBH4 at room temperature. Catalytic reduction of nitrophenol using ionic liquid stabilized AuNPs.![]()
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Affiliation(s)
- Sachin R. Thawarkar
- Physical and Materials Chemistry Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
| | - Balu Thombare
- Department of Physics
- Savitribai Phule Pune University
- Pune 411007
- India
| | | | - Nageshwar D. Khupse
- Centre for Materials for Electronics Technology (C-MET)
- Ministry of Electronics and Information Technology (Meit)
- Government of India
- Pune-411008
- India
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34
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Wei X, Cao J, Fang F. A novel multifunctional Ag and Sr2+ co-doped TiO2@rGO ternary nanocomposite with enhanced p-nitrophenol degradation, and bactericidal and hydrogen evolution activity. RSC Adv 2018; 8:31822-31829. [PMID: 35547500 PMCID: PMC9085905 DOI: 10.1039/c8ra06813e] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 09/03/2018] [Indexed: 11/21/2022] Open
Abstract
In the present study, a novel multifunctional Sr2+/Ag–TiO2@rGO ternary hybrid photocatalyst was prepared via facile sol–gel and hydrothermal methods. The prepared catalyst was well characterized by UV-vis, XRD, Raman, HRTEM and XPS. The synthesized composite was utilised for p-NP degradation, E. coli disinfection and H2 generation under visible light. The Sr2+/Ag–TiO2@rGO catalyst showed enhanced photocatalytic H2 evolution rate (64.3 μmol h−1) compared with Ag–TiO2@rGO (30.1 μmol h−1) and TiO2 (no activity). Nearly complete degradation of 15 mg l−1p-NP was achieved over Sr2+/Ag–TiO2@rGO after 3 h, while only 66% and 5% was achieved by Ag–TiO2@rGO and TiO2 respectively. Furthermore, TEM analysis was carried out on Escherichia coli (E. coli) before and after visible light irradiation to understand the inactivation mechanism and DNA analysis indicated no fragmentation during inactivation. Radical quantification experiments and ESR analysis suggested that ·OH and O2˙− were the main ROS in the degradation and disinfection processes. The superior photocatalytic H2 evolution rate of Sr2+/Ag–TiO2@rGO was attributed to the synergetic effect between the Ag, Sr2+ and TiO2 components on the rGO surface. The localized SPR effect of Ag induced visible light generated charge carriers into the conduction band of the TiO2 and Sr2+ which further transfer to the rGO for the reduction of H+ ions into H2. The results suggest that Sr2+/Ag–TiO2@rGO structures could not only induce separation and migration efficiency of charge carries, but also improve charge collection efficiency for enhanced catalytic activity. Thus, we believe that this work could provide new insights into multifunctional nanomaterials for applications in solar photocatalytic degradation of harmful organics and pathogenic bacteria with clean energy generation during wastewater treatment. In the present study, a novel multifunctional Sr2+/Ag–TiO2@rGO ternary hybrid photocatalyst was prepared via facile sol–gel and hydrothermal methods.![]()
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Affiliation(s)
- Xueyu Wei
- College of Environment
- Hohai University
- Nanjing – 210098
- P. R. China
- School of Civil Engineering and Architecture
| | - Jiashun Cao
- College of Environment
- Hohai University
- Nanjing – 210098
- P. R. China
| | - Fang Fang
- College of Environment
- Hohai University
- Nanjing – 210098
- P. R. China
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35
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Saikia H, Borah BJ, Bharali P. Room Temperature Reduction of Nitroaromatics Using Pd Nanoparticles Stabilized on Nano-CeO 2. ChemistrySelect 2017. [DOI: 10.1002/slct.201702082] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Himadri Saikia
- Department of Chemical Sciences; Tezpur University; Napaam 784 028 India, Tel.: +91 3712 275064, Fax: +91 3712 267005
| | - Biraj Jyoti Borah
- Department of Chemical Sciences; Tezpur University; Napaam 784 028 India, Tel.: +91 3712 275064, Fax: +91 3712 267005
| | - Pankaj Bharali
- Department of Chemical Sciences; Tezpur University; Napaam 784 028 India, Tel.: +91 3712 275064, Fax: +91 3712 267005
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36
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Khan FU, Asimullah, Khan SB, Kamal T, Asiri AM, Khan IU, Akhtar K. Novel combination of zero-valent Cu and Ag nanoparticles @ cellulose acetate nanocomposite for the reduction of 4-nitro phenol. Int J Biol Macromol 2017; 102:868-877. [DOI: 10.1016/j.ijbiomac.2017.04.062] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Revised: 04/13/2017] [Accepted: 04/14/2017] [Indexed: 12/12/2022]
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37
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Thawarkar SR, Khupse ND, Kumar A. Kinetic Profile and Catalytic Activity of Transition Metal-Based Ionic Liquids for Reduction of Nitroarenes via In Situ
Formation of Nanoparticles. ChemistrySelect 2017. [DOI: 10.1002/slct.201701601] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Sachin R. Thawarkar
- Physical and Materials Chemistry Division; CSIR-National Chemical Laboratory; Pune 411 008 India
| | - Nageshwar D. Khupse
- Physical and Materials Chemistry Division; CSIR-National Chemical Laboratory; Pune 411 008 India
| | - Anil Kumar
- Physical and Materials Chemistry Division; CSIR-National Chemical Laboratory; Pune 411 008 India
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Sun J, Liu X, Tang Q, Hill JP, Ariga K, Ji Q. Morphology Adjustable Silica Nanosheets for Immobilization of Gold Nanoparticles. ChemistrySelect 2017. [DOI: 10.1002/slct.201701004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jiao Sun
- Herbert Gleiter Institute for Nanoscience; Nanjing University of Science and Technology; 200 Xiaolingwei Nanjing 210094 China
| | - Xinbang Liu
- Herbert Gleiter Institute for Nanoscience; Nanjing University of Science and Technology; 200 Xiaolingwei Nanjing 210094 China
| | - Qin Tang
- Herbert Gleiter Institute for Nanoscience; Nanjing University of Science and Technology; 200 Xiaolingwei Nanjing 210094 China
| | - Jonathan P. Hill
- WPI Center for Materials Nanoarchitectonics; National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba; Ibaraki 305-0044 Japan
| | - Katsuhiko Ariga
- WPI Center for Materials Nanoarchitectonics; National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba; Ibaraki 305-0044 Japan
| | - Qingmin Ji
- Herbert Gleiter Institute for Nanoscience; Nanjing University of Science and Technology; 200 Xiaolingwei Nanjing 210094 China
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39
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SPR effect of AgNPs decorated TiO 2 in DSSC using TPMPI in the electrolyte: Approach towards low light trapping. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.05.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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40
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Zou X, Deng P, Zhou C, Hou Y, Chen R, Liang F, Liao L. Preparation of a novel antibacterial chitosan-poly(ethylene glycol) cryogel/silver nanoparticles composites. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:1324-1337. [DOI: 10.1080/09205063.2017.1321346] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Xueqing Zou
- College of Chemistry and Molecular Science, Wuhan University, Wuhan, P.R. China
| | - Pengpeng Deng
- College of Chemistry and Molecular Science, Wuhan University, Wuhan, P.R. China
| | - Changjiang Zhou
- College of Chemistry and Molecular Science, Wuhan University, Wuhan, P.R. China
| | - Yulin Hou
- School of Engineering, Sun Yat-Sen University, Guangzhou, P.R. China
| | - Rongsheng Chen
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan, P.R. China
| | - Feng Liang
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan, P.R. China
| | - Liqiong Liao
- College of Chemistry and Molecular Science, Wuhan University, Wuhan, P.R. China
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41
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Manjari G, Saran S, Arun T, Devipriya SP, Vijaya Bhaskara Rao A. Facile Aglaia elaeagnoidea Mediated Synthesis of Silver and Gold Nanoparticles: Antioxidant and Catalysis Properties. J CLUST SCI 2017. [DOI: 10.1007/s10876-017-1199-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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42
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Rokade AA, Kim JH, Lim SR, Yoo SI, Jin YE, Park SS. A Novel Green Synthesis of Silver Nanoparticles Using Rubus crataegifolius Bge Fruit Extract. J CLUST SCI 2017. [DOI: 10.1007/s10876-017-1196-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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43
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Liu J, Ran C, Pu Y, Wang JX, Wang D, Chen JF. Silver/graphene nanocomposites as catalysts for the reduction of p
-nitrophenol to p
-aminophenol: Materials preparation and reaction kinetics studies. CAN J CHEM ENG 2017. [DOI: 10.1002/cjce.22774] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Jiangyong Liu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering; State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 China
- College of Chemistry and Chemical Engineering; Yangzhou University; Yangzhou Jiangsu 225002 China
| | - Chenxin Ran
- International Center for Dielectric Research; Xi'an Jiaotong University; Xi'an 710049 China
| | - Yuan Pu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering; State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 China
| | - Jie-Xin Wang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering; State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 China
| | - Dan Wang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering; State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 China
- Research Centre of the Ministry of Education for High Gravity Engineering and Technology; Beijing University of Chemical Technology; Beijing 100029 China
| | - Jian-Feng Chen
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering; State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 China
- Research Centre of the Ministry of Education for High Gravity Engineering and Technology; Beijing University of Chemical Technology; Beijing 100029 China
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44
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Manjunath K, Souza VS, Ganganagappa N, Scholten JD, Teixeira SR, Dupont J, Thippeswamy R. Effect of the magnetic core of (MnFe)2O3@Ta2O5 nanoparticles on photocatalytic hydrogen production. NEW J CHEM 2017. [DOI: 10.1039/c6nj03137d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
(MnFe)2O3@Ta2O5–IL core–shell materials showed better photocatalytic H2 production compared to individual core MF and shell Ta2O5.
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Affiliation(s)
- Krishnappa Manjunath
- Centre for Nano and Material Sciences
- Jain University
- Bangalore-562112
- India
- Laboratory of Molecular Catalysis
| | - Virgínia S. Souza
- Laboratory of Molecular Catalysis
- Institute of Chemistry
- UFRGS
- Porto Alegre
- Brazil
| | | | - Jackson D. Scholten
- Laboratory of Molecular Catalysis
- Institute of Chemistry
- UFRGS
- Porto Alegre
- Brazil
| | - Sérgio R. Teixeira
- Laboratory of Thin Films and Nanostructure Fabrication
- Institute of Physics
- UFRGS
- Porto Alegre
- Brazil
| | | | - Ramakrishnappa Thippeswamy
- Centre for Nano and Material Sciences
- Jain University
- Bangalore-562112
- India
- Dayananda Sagar Academy of Technology & Management
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45
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Cao C, Huang J, Li L, Zhao C, Yao J. Highly dispersed Ag/TiO2via adsorptive self-assembly for bactericidal application. RSC Adv 2017. [DOI: 10.1039/c7ra00758b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The strong electrostatic adsorption (SEA) technique was used for the preparation of Ag/TiO2by driving the Ag precursor onto the TiO2surface.
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Affiliation(s)
- Chongjiang Cao
- National Engineering Laboratory for Food Storage and Transportation
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety
- Nanjing University of Finance & Economics
- Nanjing 210023
- China
| | | | - Li Li
- National Engineering Laboratory for Food Storage and Transportation
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety
- Nanjing University of Finance & Economics
- Nanjing 210023
- China
| | - Chanjuan Zhao
- National Engineering Laboratory for Food Storage and Transportation
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety
- Nanjing University of Finance & Economics
- Nanjing 210023
- China
| | - Jianfeng Yao
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
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46
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Homogeneous synthesis of Ag nanoparticles-doped water-soluble cellulose acetate for versatile applications. Int J Biol Macromol 2016; 92:167-173. [DOI: 10.1016/j.ijbiomac.2016.06.092] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 06/15/2016] [Accepted: 06/29/2016] [Indexed: 11/22/2022]
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47
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Ajitha B, Reddy YAK, Reddy PS, Suneetha Y, Jeon HJ, Ahn CW. Instant biosynthesis of silver nanoparticles using Lawsonia inermis leaf extract: Innate catalytic, antimicrobial and antioxidant activities. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.03.041] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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48
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Walker JM, Zaleski JM. A simple route to diverse noble metal-decorated iron oxide nanoparticles for catalysis. NANOSCALE 2016; 8:1535-1544. [PMID: 26681072 DOI: 10.1039/c5nr06700f] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Developing facile synthetic routes to multifunctional nanoparticles combining the magnetic properties of iron oxides with the optical and catalytic utility of noble metal particles remains an important goal in realizing the potential of hybrid nanomaterials. To this end, we have developed a single route to noble metal-decorated magnetic nanoparticles (Fe3O4@SiO2-M; M = Au, Pd, Ag, and PtAg) and characterized them by HRTEM and STEM/EDX imaging to reveal their nanometer size (16 nm Fe3O4 and 1-5 nm M seeds) and uniformity. This represents one of the few examples of genuine multifunctional particles on the nanoscale. We show that these hybrid structures have excellent catalytic activity for the reduction of 4-nitrophenol (knorm = 2 × 10(7) s(-1) mol(Pd)(-1); 5 × 10(6) s(-1) mol(Au)(-1); 5 × 10(5) s(-1) mol(PtAg)(-1); 7 × 10(5) s(-1) mol(Ag)(-1)). These rates are the highest reported for nano-sized comparables, and are competitive with mesoparticles of similar composition. Due to their magnetic response, the particles are also suitable for magnetic recovery and maintain >99% conversion for at least four cycles. Using this synthetic route, Fe3O4@SiO2-M particles show great promise for further development as a precursor to complicated anisotropic materials or for applications ranging from nanocatalysis to biomedical sensing.
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Affiliation(s)
- Joan M Walker
- Department of Chemistry, Indiana University, Bloomington, IN, USA.
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49
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Lü J, Fu Y, Song Y, Wang D, Lü C. Temperature-dependent catalytic reduction of 4-nitrophenol based on silver nanoclusters protected by a thermo-responsive copolymer ligand. RSC Adv 2016. [DOI: 10.1039/c5ra23158b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A facile strategy is developed for fabricating novel nanocatalysts of Ag NCs protected with a temperature-responsive copolymer ligand containing 8-hydroxyquinoline and isopropylacrylamide segments.
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Affiliation(s)
- Jianhua Lü
- Institute of Chemistry
- Northeast Normal University
- Changchun 130024
- P. R. China
| | - Yuqin Fu
- College of Life Sciences
- Jilin Agricultural University
- Changchun 130118
- P. R. China
| | - Yajiao Song
- Institute of Chemistry
- Northeast Normal University
- Changchun 130024
- P. R. China
| | - Dongmei Wang
- Institute of Chemistry
- Northeast Normal University
- Changchun 130024
- P. R. China
| | - Changli Lü
- Institute of Chemistry
- Northeast Normal University
- Changchun 130024
- P. R. China
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50
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Wang Z, Teramura K, Huang Z, Hosokawa S, Sakata Y, Tanaka T. Tuning the selectivity toward CO evolution in the photocatalytic conversion of CO2 with H2O through the modification of Ag-loaded Ga2O3 with a ZnGa2O4 layer. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01280e] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Modification of Ag-loaded Ga2O3 with a ZnGa2O4 layer is effective for the highly selective photocatalytic conversion of CO2 by H2O.
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Affiliation(s)
- Zheng Wang
- Department of Molecular Engineering
- Graduate School of Engineering
- Kyoto University
- Nishikyo-ku
- Japan
| | - Kentaro Teramura
- Department of Molecular Engineering
- Graduate School of Engineering
- Kyoto University
- Nishikyo-ku
- Japan
| | - Zeai Huang
- Department of Molecular Engineering
- Graduate School of Engineering
- Kyoto University
- Nishikyo-ku
- Japan
| | - Saburo Hosokawa
- Department of Molecular Engineering
- Graduate School of Engineering
- Kyoto University
- Nishikyo-ku
- Japan
| | - Yoshihisa Sakata
- Graduate School of Science and Engineering
- Yamaguchi University
- Ube 755-8611
- Japan
| | - Tsunehiro Tanaka
- Department of Molecular Engineering
- Graduate School of Engineering
- Kyoto University
- Nishikyo-ku
- Japan
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