A New 2D Layered Aluminophosphate |Hada|6[Al6(PO4)8](H2O)11 Supported Highly Uniform Ag Nanoparticles for 4-Nitrophenol Reduction

2021 ◽  
Author(s):  
Jiang-Zhen Qiu ◽  
Long-Fei Wang ◽  
Xugang Shu ◽  
Cuijin Li ◽  
Zhongke Yuan ◽  
...  
Keyword(s):  
Ag Nanoparticles ◽  
Two Dimensional ◽  
Nitrophenol Reduction ◽  
Highly Uniform

Aluminophosphate with |Hada|6[Al6(PO4)8](H2O)11 (denoted as ZHKU-1) of a new two-dimensional (2D) layer has been synthesized by adopting the template of alkylated memantine. The structure of ZHKU-1 was constructed from the...

scholarly journals Development of Effectual Substrates for SERS by Nanostructures-on flexible surfaces

2021 ◽  
Vol 2114 (1) ◽  
pp. 012084
Author(s):  
Hammad R. Humud ◽  
Fatimah Jumaah Moaen
Keyword(s):  
Raman Scattering ◽  
Ag Nanoparticles ◽  
Surface Enhanced Raman Scattering ◽  
Wave Number ◽  
Plasmonic Nanostructures ◽  
Sers Substrate ◽  
Two Dimensional ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Abstract The current study examines recent advancements in surface-enhanced Raman scattering (SERS), a technique that employs flexible surfaces as an active substrate, this surfaces consist from two-dimensional thermo-plasmonic grating. With 53 nm Au layer (was deposited on the 2D grating structure of the PDMS by the PVD method). The explosive wire technique was used to preparing Ag nanoparticles that were used for the purpose of SERS. The effect of the plasmonic nanostructures on the absorption spectra and Surface - Enhanced Raman Scattering (SERS) activities was examined. Rhodamine 6G dye was used as a probe molecule. X-Ray diffraction (XRD) was used to examine the structural characteristics of the nanoparticles. The morphology was assessed using Field Emission Scanning Electron Microscopy(FESEM). A twin beam UV-Vis Spectrophotometer was used to measure the absorption of the combined Rh6G dye (concentration 1×10“–6M) with the nanostructures. a Sunshine Raman microscope system and a 50mm objective lens, used for investigating the Raman spectra of the Rh6G combined with nanostructures. The results showed that the enhancement factor (EF) for SERS of R6G (1×M) reached to (2.2×10 3) When using Ag nanoparticles and (0.08 × 103) when R6G deposited directly on the flexible substrates without nanostructures at the wave number (1650 cm−1), we produced a recyclable, homogeneous, and highly sensitive SERS substrate with dependable reproducibility. For the SERS substrate, a surface made up of two-dimensional (2D) flexible grating substrates was chosen to provide multiple modalities in electrical and medicinal applications.

Ag-Nanoparticles-Embedded Filter Paper: An Efficient Dip Catalyst for Aromatic Nitrophenol Reduction, Intramolecular Cascade Reaction, and Methyl Orange Degradation

2018 ◽  
Vol 3 (10) ◽  
pp. 2882-2887 ◽  
Author(s):  
Mohini Mourya ◽  
Deepika Choudhary ◽  
Ashok Kumar Basak ◽  
Chandra Shekhar Pati Tripathi ◽  
Debanjan Guin
Keyword(s):  
Methyl Orange ◽  
Filter Paper ◽  
Ag Nanoparticles ◽  
Cascade Reaction ◽  
Methyl Orange Degradation ◽  
Nitrophenol Reduction

Ag nanoparticles stabilized on cubic polyhedral oligomeric silsesquioxane cross-linked poly(N-isopropyl acrylamide-co-itaconic acid): An efficient catalyst for 4-nitrophenol reduction

2020 ◽  
Vol 13 (07) ◽  
pp. 2051040
Author(s):  
Vahid Rahimkhoei ◽  
Ali Akbari ◽  
Maryam Zirak ◽  
Bagher Eftekhari-Sis
Keyword(s):  
Itaconic Acid ◽  
Ag Nanoparticles ◽  
Zero Order ◽  
Polymeric Support ◽  
Efficient Catalyst ◽  
First Order ◽  
First Order Kinetics ◽  
Isopropyl Acrylamide ◽  
Nitrophenol Reduction ◽  
Oligomeric Silsesquioxane

Ag nanoparticles were synthesized and stabilized on a polymeric support, poly([Formula: see text]-isopropyl acrylamide-co-itaconic acid)/POSS, by simply reducing Ag[Formula: see text] ions adsorbed in the interior of the polymeric network. The prepared Ag@p(NIPAM-IA)/POSS was used as an efficient and recyclable catalyst for removal of the 4-nitrophenol (4-NP) contaminant by NaBH4-induced reduction to 4-aminophenol (4-AP) in aqueous solution. Different conditions including Ag content and amount of the nanocomposite, and also temperature of the 4-NP reduction were investigated. Also, two kinetic models, zero-order and first-order kinetics, were studied for the reduction of 4-NP to 4-AP.

Nitrogen-rich hierarchical porous carbon supported Ag nanoparticles for efficient nitrophenol reduction

2019 ◽  
Vol 290 ◽  
pp. 109672 ◽  
Author(s):  
Qiuliang Wang ◽  
Yunfei Liu ◽  
Qiuyu Meng ◽  
Yiling Zhu ◽  
Jun Xie ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Ag Nanoparticles ◽  
Hierarchical Porous Carbon ◽  
Nitrophenol Reduction ◽  
Hierarchical Porous
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