| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터) |
| 권호 |
25권 1호, p.841 |
| 발표분야 |
재료(Materials) |
| 제목 |
Facile synthesis of N-CQDs@S-gC3N4 composite for enhanced visible-light photocatalysis of methylene blue |
| 초록 |
This study explores the facile synthesis of N-doped Carbon quantum dots decorated onto the interlayers and surface of S-doped g-C3N4 pinhole nanosheets with porous structure via simple facile hydrothermal method. The existence of N-CQDs and S-gC3N4 phases in the N-CQDs/S-g C3N4 composite was confirmed by XRD, FTIR and TEM techniques. The N-CQDs/S-gC3N4 composite exhibited an enhanced photocatalytic performance on aqueous methylene blue dye under visible light with respect to undoped S-gC3N4. The dye degradation of ∼40% and 92% was noticed for S-doped g-C3N4 and N-CQDs/S-gC3N4 photo catalyst, respectively after 60 min of irradiation. The enhanced photocatalytic activity of the N-CQDs/S-gC3N4 was attributed to its negative zeta potential for electrostatic interaction with cationic dye and the pinhole porous structure can provide more active sites which can induce faster transport of the charge carrier over the surface. Moreover, the N-CQDs are favourable for trapping electrons and promoting the separation of photo generated electron-hole pairs in S-gC3N4. |
| 저자 |
Moniruzzaman MD, 김종성, Ankireddy Sashadrireddy
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| 소속 |
가천대 |
| 키워드 |
재료 |
| E-Mail |
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| 원문파일 |
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