scholarly journals Graphdiyne bearing pillar[5]arene-reduced Au nanoparticles for enhanced catalytic performance towards the reduction of 4-nitrophenol and methylene blue

RSC Advances ◽  
2019 ◽  
Vol 9 (66) ◽  
pp. 38372-38380 ◽  
Author(s):  
Xiaoping Tan ◽  
Jianhua Xu ◽  
Ting Huang ◽  
Sheng Wang ◽  
Maojie Yuan ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Au Nanoparticles ◽  
Catalytic Performance ◽  
Hybrid Nanomaterial ◽  
P Application

Application of a novel 2D heterogeneous hybrid nanomaterial based on graphdiyne and pillar[5]arene-reduced Au nanoparticles in catalyzing the reduction of 4-nitrophenol and methylene blue.

The significant impact of polydopamine on the catalytic performance of the carried Au nanoparticles

2015 ◽  
Vol 51 (8) ◽  
pp. 1469-1471 ◽  
Author(s):  
Aijing Ma ◽  
Yijun Xie ◽  
Jie Xu ◽  
Hongbo Zeng ◽  
Haolan Xu
Keyword(s):  
Methylene Blue ◽  
Au Nanoparticles ◽  
Catalytic Performance

The polydopamine carrier causes the enrichment of methylene blue toward its surface, leading to the improved catalytic performance of the carried Au nanoparticles.

A hybrid composite of hydroxyapatite and Ca–Al layered double hydroxide supported Au nanoparticles for highly efficient base-free aerobic oxidation of glucose

2019 ◽  
Vol 48 (25) ◽  
pp. 9161-9172 ◽  
Author(s):  
Yunfeng Zhuge ◽  
Guoli Fan ◽  
Yanjun Lin ◽  
Lan Yang ◽  
Feng Li
Keyword(s):  
Layered Double Hydroxide ◽  
Hybrid Composite ◽  
Au Nanoparticles ◽  
Aerobic Oxidation ◽  
Catalytic Performance ◽  
Highly Efficient ◽  
Double Hydroxide ◽  
Oxidation Of Glucose

A novel hybrid composite of hydroxyapatite/Ca–Al layered double hydroxide supported Au nanoparticles exhibited robust catalytic performance in base-free aerobic oxidation of glucose.

Preparation and Catalytic Performance of Microporous Polymer/Au Nanoparticles Composite Microspheres

2020 ◽  
Vol 35 (2) ◽  
pp. 464-468
Author(s):  
Chun Guo ◽  
Lijuan Zhang ◽  
Yan Zhao ◽  
Mengyuan Li ◽  
Xiaotao Wang ◽  
...  
Keyword(s):  
Au Nanoparticles ◽  
Catalytic Performance ◽  
Composite Microspheres ◽  
Microporous Polymer

Synthesis and catalytic performance of graphene oxide-Au nanorings composites

2019 ◽  
Vol 12 (03) ◽  
pp. 1950028 ◽  
Author(s):  
Tong Shen ◽  
Zhong Li ◽  
Yue Jiang ◽  
Zai-Gang Luo
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Rate Constant ◽  
Sodium Borohydride ◽  
Catalytic Performance ◽  
Hybrid Structure ◽  
In Situ Synthesis ◽  
Galvanic Replacement ◽  
Hybrid Nanomaterial

A simple and facile method is described for the in situ synthesis of graphene oxide-Ag nanoplates (GO-AgNPs) hybrid structure and then served as sacrificial templates for producing graphene oxide-Au nanorings (GO-AuNRs) by galvanic replacement taken place on the GO surface. The catalytic activity of the resulting hybrid nanomaterial has been investigated for the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) with sodium borohydride (NaBH4). The results showed that the rate constant of GO-AuNRs nanomaterials was 0.205[Formula: see text]min[Formula: see text] and the samples showed significant enhancement in catalytic activity.

A comparative DFT study of adsorption and catalytic performance of Au nanoparticles at anatase and brookite TiO2 surfaces

2011 ◽  
Vol 605 (15-16) ◽  
pp. 1369-1380 ◽  
Author(s):  
Wei-Kun Li ◽  
Li-Na Chu ◽  
Xue-Qing Gong ◽  
Guanzhong Lu
Keyword(s):  
Au Nanoparticles ◽  
Catalytic Performance ◽  
Dft Study

Monolithic carbon foam-supported Au nanoparticles with excellent catalytic performance in a fixed-bed system

2017 ◽  
Vol 41 (24) ◽  
pp. 15027-15032 ◽  
Author(s):  
Xiang Liu ◽  
Yan Li ◽  
Zheng Xing ◽  
Xiaohua Zhao ◽  
Ningning Liu ◽  
...  
Keyword(s):  
Au Nanoparticles ◽  
Fixed Bed ◽  
Carbon Foam ◽  
Catalytic Performance ◽  
System P ◽  
Fixed Bed System ◽  
Excellent Catalytic Performance

A MCF/Au monolith can be innovatively utilized to construct a fixed-bed system, which exhibits exceptional reduction performance for 4-nitrophenol.

Manipulation on ZnO heterostructures: from binary ZnO–Ag to ternary ZnO–Ag–polypyrrole

CrystEngComm ◽  
2014 ◽  
Vol 16 (48) ◽  
pp. 10943-10948 ◽  
Author(s):  
Juan Li ◽  
Jian Yan ◽  
Chengzhan Liu ◽  
Lihong Dong ◽  
Hui Lv ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Uv Irradiation ◽  
Zinc Acetate ◽  
Catalytic Performance ◽  
Polymerization Process ◽  
Fast Reaction ◽  
Ternary Composite ◽  
Surface Polymerization

A ternary composite ZnO–Ag–polypyrrole was synthesized through a fast reaction between zinc acetate and hexamethylenetetramine followed by an in situ surface polymerization process. The sample exhibited a superior catalytic performance in the degradation of methylene blue under both UV irradiation and visible light.

scholarly journals Catalytic performance of Ag, Au and Ag-Au nanoparticles synthesized by lichen extract

2018 ◽  
Vol 7 (5) ◽  
pp. 433-440 ◽  
Author(s):  
Zafer Çıplak ◽  
Ceren Gökalp ◽  
Bengü Getiren ◽  
Atila Yıldız ◽  
Nuray Yıldız
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Fourier Transform ◽  
Catalytic Activity ◽  
Au Nanoparticles ◽  
Bimetallic Nanoparticles ◽  
Catalytic Performance ◽  
Catalytic Activities ◽  
Transmission Electron ◽  
Vis Spectroscopy

Abstract In the present study, the green chemistry approach for the biosynthesis of Ag, Au and Ag-Au bimetallic nanoparticles (NPs) was applied using lichen extract [Cetraria islandica (L.) Ach.]. The lichen extract acts both as a reducing and stabilizing agent. The monometallic and bimetallic NPs were characterized by transmission electron microscopy (TEM), ultraviolet-visible (UV-Vis) spectroscopy and Fourier transform infrared (FTIR) spectroscopy. The results showed that NPs were successfully synthesized and the prepared structures were generally spherical. The synthesized nanostructures exhibited excellent catalytic activities towards reduction of nitrophenols (4-nitrophenol; 4-NP) to aminophenols (4-aminophenol; 4-AP) with sodium borohydride (NaBH4). It was determined that bimetallic NPs exhibit more effective catalytic activity than monometallic Ag and Au nanostructures. This is the first report on 4-NP reduction with Ag, Au and Au-Ag NP catalysts prepared by lichen extract.

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