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Silver-Incorporated Mussel-Inspired Polydopamine Coatings on Mesoporous Silica as an Efficient Nanocatalyst and Antimicrobial Agent
- Source :
- ACS applied materialsinterfaces. 10(2)
- Publication Year :
- 2018
-
Abstract
- To tackle severe environmental pollution, a search for materials by economical and eco-friendly preparations is demanding for public health. In this study, a novel in situ method to form silver nanoparticles under mild conditions was developed using biomimetic reducing agents of polydopamine coated on the rodlike mesoporous silica of SBA-15. The synthesized SBA-15/polydopamine (PDA)/Ag nanocomposites were characterized by a combination of physicochemical and electrochemical methods. 4-Nitrophenol (4-NP) and methylene blue (MB) were used as models for the evaluation of the prepared nanocatalysts of SBA-15/PDA/Ag in which the composite exhibited enhanced catalytic performance toward degrading 4-NP in solution and MB on the membrane, respectively. Additionally, compared with that of solid core-shell SiO2/PDA/Ag, tubular SBA-15/PDA/Ag showed the prolonged inhibitory effect on microbial growth as typified by Escherichia coli (60 h), Staphylococcus aureus (36 h), and Aspergillus fumigatus (60 h), which demonstrated efficient control of silver nanoparticles release from the mesopores. The constructed dual-functional SBA-15/PDA/Ag as the long-term antimicrobial agent and the catalyst of industrial products provides an integrated nanoplatform to deal with environmental concerns.
- Subjects :
- Materials science
Indoles
Silver
Reducing agent
Polymers
Metal Nanoparticles
Environmental pollution
02 engineering and technology
010402 general chemistry
01 natural sciences
Silver nanoparticle
Catalysis
chemistry.chemical_compound
General Materials Science
Nanocomposite
Mesoporous silica
021001 nanoscience & nanotechnology
Silicon Dioxide
Nanomaterial-based catalyst
0104 chemical sciences
Anti-Bacterial Agents
chemistry
0210 nano-technology
Mesoporous material
Porosity
Methylene blue
Nuclear chemistry
Subjects
Details
- ISSN :
- 19448252
- Volume :
- 10
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- ACS applied materialsinterfaces
- Accession number :
- edsair.doi.dedup.....5cbb3655fe89b26aa8a12758e9c1b056