Journal
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
Volume 40, Issue -, Pages 176-184Publisher
JOURNAL MATER SCI TECHNOL
DOI: 10.1016/j.jmst.2019.08.031
Keywords
nanoparticles; S-doped g-C3N4; Catalytic reduction; 4-nitrophenol
Funding
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT and Future Planning [NRF-2017R1E1 Al A01074266]
- Industrial Fundamental Technology Development Program - Ministry of Trade, Industry and Energy (MOTIE) of Korea [10076350]
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In this work, a simple synthesis of sulfur doped graphitic carbon nitride (S-g-C3N4) act as a support cum stabilizers for gold nanoparticles (Au) and its was characterized by UV-vis and XRD to measure the absorbance and crystallinity, respectively. The functional group and morphology of the samples were identified using FT-IR and TEM. Finally, the Au@S-g-C3N4 nanocatalyst exhibits good catalytic performance and stability in the reduction of hazardous 4-nitrophenol (NP) compared to S-g-C3N4 using NaBH4. Moreover, the Au@S-g-C3N4 nanocomposite holds a good catalytic efficiency (near 100%) achieved by within 5 min. The highest catalytic reduction of NP is due to the synergistic effect of Au nanoparticles decorated on S-g-C3N4. The fast electron transfer reduction mechanism was elucidated and discussed. Excellent reusability and stability of the developed nanocomposites were also observed in consecutive reduction experiments. The filtering and catalyzing device was used for the direct conversion of NP polluted water. This method can open a new avenue for the metal nanoparticles based carbon materials heterogeneous catalyst and its reduction of toxic contaminants. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
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