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Cellulose derived nitrogen and phosphorus co-doped carbon-based catalysts for catalytic reduction of p-nitrophenol
- Source :
- Journal of Colloid and Interface Science. 571:100-108
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- The cellulose, which is one of the most abundant solid by-products of agriculture and forestry industry, has been successfully tested for the synthesis of nitrogen and phosphorus co-doped carbon-based metal-free catalysts (NPC) via freeze-drying the mixture of cellulose crystallite and ammonium phosphate, followed by annealing of the hydrogel under nitrogen atmosphere at 800 °C for 2 h. Different techniques including TEM, SEM, FTIR and XPS spectroscopy have been applied to characterize the as-prepared NPC, which presents flake-like morphology with N and P doping levels of 4.3 atom% and 10.66 atom%, respectively. The NPC exhibits excellent catalytic activity for the reduction of p-nitrophenol (p-NP). The turnover frequency (TOF) of the reduction of p-NP is as high as 2 × 10−5 mmol·mg−1·min−1 and the apparent kinetic rate constant was calculated as 0.0394 min−1 at room temperature. The catalytic mechanism is proposed by combining the density functional theory calculation and analysis of the experimental results. These findings open up new possibilities of valorization for cellulose-based by-product and treatment of p-NP-based wastewater.
- Subjects :
- Nitrogen
Surface Properties
Ammonium phosphate
chemistry.chemical_element
02 engineering and technology
010402 general chemistry
01 natural sciences
Catalysis
Nitrophenols
Biomaterials
chemistry.chemical_compound
Nitrophenol
Colloid and Surface Chemistry
X-ray photoelectron spectroscopy
Particle Size
Fourier transform infrared spectroscopy
Cellulose
Density Functional Theory
Phosphorus
Selective catalytic reduction
021001 nanoscience & nanotechnology
Carbon
0104 chemical sciences
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
chemistry
0210 nano-technology
Oxidation-Reduction
Nuclear chemistry
Subjects
Details
- ISSN :
- 00219797
- Volume :
- 571
- Database :
- OpenAIRE
- Journal :
- Journal of Colloid and Interface Science
- Accession number :
- edsair.doi.dedup.....2caa07a130e5fa31eb8b0d20e8bf0967