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Facile and Green Approach To Prepare Nanostructured Au@MnO2 and Its Applications for Catalysis and Fluorescence Sensing of Glutathione in Human Blood
- Source :
- ACS Sustainable Chemistry & Engineering. 6:3948-3956
- Publication Year :
- 2018
- Publisher :
- American Chemical Society (ACS), 2018.
-
Abstract
- The increasingly serious environmental problems make it urgent to develop a new type of sustainable green material which can degrade pollutants and monitor human health. However, the traditional preparation methods are frequently limited by tedious operations, high-energy consumption, and massive pollution. Herein, we present a facile and green method for preparation of MnO2 nanoflakes mediated by macrocyclic molecule calix[8]arene. The MnO2 nanoflakes in situ grew on the preformed gold nanoparticles, forming an impressive core–shell Au@MnO2 flake-like nanocomposite. The catalytic properties of Au@MnO2 composite for reduction of 4-NP and degradation of MB were 2.4 and 187 times better than commercial Pd/C, respectively. Meanwhile, the as-synthesized Au@MnO2 nanocomposite exhibited specially excellent sensitivity and selectivity for detection of GSH with a limit of detection (LOD) of 0.11 μM. The core–shell nanostructured Au@MnO2 shows great potential value for the sustainable development of the environmen...
- Subjects :
- Detection limit
Materials science
Nanocomposite
Renewable Energy, Sustainability and the Environment
General Chemical Engineering
Composite number
Nanotechnology
02 engineering and technology
General Chemistry
Glutathione
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Catalysis
chemistry.chemical_compound
chemistry
Colloidal gold
Environmental Chemistry
Degradation (geology)
0210 nano-technology
Selectivity
Subjects
Details
- ISSN :
- 21680485
- Volume :
- 6
- Database :
- OpenAIRE
- Journal :
- ACS Sustainable Chemistry & Engineering
- Accession number :
- edsair.doi...........8d7c74f92538a2144f24f728c3ee1d7d