Back to Search
Start Over
Synthesis of high performance Ni3C-Ni decorated thermally expanded reduced graphene oxide (TErGO/Ni3C-Ni) nanocomposite: A stable catalyst for reduction of Cr(VI) and organic dyes
- Source :
- Journal of Hazardous Materials. 366:723-731
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- A high performance thermally expanded reduced graphene oxide (TErGO) nanocomposite decorated with Ni3C-Ni nanoparticles (TErGO/Ni3C-Ni) has been successfully synthesized by using a facile and eco-friendly approach. The morphology, textural features, surface composition and stability of TErGO/Ni3C-Ni nanocomposite are investigated by various physicochemical characterizations which revealed the uniform dispersion of crystalline metal nanoparticles inside TErGO matrix. The composite has been exhibited a large surface area and pore volume of 121 m2 g−1 and 0.791 cm3 g−1, respectively. The TErGO/Ni3C-Ni exhibited remarkable catalytic performance surpassing most metal-based catalysts with various kind of support matrices reported in recent literature. The reduction of Cr(Ⅵ) to Cr(Ⅲ) was achieved within 1 min with an excellent rate constant of 2.74 min−1 and phenomenally higher specific removal rate (SRR) of 0.29 mg Cr(VI) min−1. mg−1 of TErGO/Ni3C-Ni. While it also proved an excellent reducing catalyst for organic dyes via NaBH4 with full reduction achieved within 30 s. Moreover, as prepared nanocatalyst possesses excellent stability and recyclability with easy magnetic separation.
- Subjects :
- Environmental Engineering
Materials science
Health, Toxicology and Mutagenesis
Composite number
0211 other engineering and technologies
Oxide
Nanoparticle
02 engineering and technology
010501 environmental sciences
01 natural sciences
Catalysis
law.invention
Metal
chemistry.chemical_compound
law
Environmental Chemistry
Waste Management and Disposal
0105 earth and related environmental sciences
021110 strategic, defence & security studies
Nanocomposite
Graphene
Pollution
Chemical engineering
chemistry
visual_art
visual_art.visual_art_medium
Dispersion (chemistry)
Subjects
Details
- ISSN :
- 03043894
- Volume :
- 366
- Database :
- OpenAIRE
- Journal :
- Journal of Hazardous Materials
- Accession number :
- edsair.doi...........02a6116a9f13d82ff4eba4338b097769