Details
| Original language | English |
|---|---|
| Pages (from-to) | 50-53 |
| Number of pages | 4 |
| Journal | Materials letters |
| Volume | 220 |
| Early online date | 5 Mar 2018 |
| Publication status | Published - 1 Jun 2018 |
Abstract
A novel visible light sensitive Cu(II)-nanocluster grafted Na-K 2Ti 6O 13 photocatalyst was prepared via molten salt method followed by impregnation technique. The prepared samples were characterized with various analytical techniques to validate the grafting of nanocluster onto the surface of Na-K 2Ti 6O 13. TEM analysis shows belt-like morphology with diameter of 10–20 nm. In addition, a cluster of size less than 5 nm was observed on the surface of the catalyst belt, indicating the grafting of Cu(II) rather than its doping onto the catalyst lattice. The surface modified Na-K 2Ti 6O 13 nano-belt showed propitious photocatalytic activity over pure Na-K 2Ti 6O 13 for the degradation of Rhodamine B. Among the series of different wt% Cu-grafting, 0.1% Cu-grafted Na-K 2Ti 6O 13 showed highest photocatalytic activity for the degradation of dye with 87% degradation within 80 min of illumination. The enhanced photocatalytic activity could be attributed to direct interfacial charge transfer (IFCT) from VB of Na-K 2Ti 6O 13 to the surface grafted Cu(II) nanocluster.
Keywords
- Cu-grafted Na-K Ti O, Photocatalysis, Visible light-mediated dye degradation
ASJC Scopus subject areas
- Materials Science(all)
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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In: Materials letters, Vol. 220, 01.06.2018, p. 50-53.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Surface modification of Na-K2Ti6O13 photocatalyst with Cu(II)-nanocluster for efficient visible-light-driven photocatalytic activity
AU - khan, A.
AU - Alam, U.
AU - Ali, D.
AU - Bahnemann, D.
AU - Muneer, M.
N1 - Funding information: Financial support to research projects from Ministry of Mines, Government of India, New Delhi, and Alexander von Humboldt Foundation, Germany, under the “Research Group Linkage Program” are gratefully acknowledged. A. Khan is thankful to University Grants Commission (UGC), New Delhi, India, for Senior Research Fellowship (SRF). U. Alam thanks CSIR, New Delhi, for the award of Senior Research Fellowship.
PY - 2018/6/1
Y1 - 2018/6/1
N2 - A novel visible light sensitive Cu(II)-nanocluster grafted Na-K 2Ti 6O 13 photocatalyst was prepared via molten salt method followed by impregnation technique. The prepared samples were characterized with various analytical techniques to validate the grafting of nanocluster onto the surface of Na-K 2Ti 6O 13. TEM analysis shows belt-like morphology with diameter of 10–20 nm. In addition, a cluster of size less than 5 nm was observed on the surface of the catalyst belt, indicating the grafting of Cu(II) rather than its doping onto the catalyst lattice. The surface modified Na-K 2Ti 6O 13 nano-belt showed propitious photocatalytic activity over pure Na-K 2Ti 6O 13 for the degradation of Rhodamine B. Among the series of different wt% Cu-grafting, 0.1% Cu-grafted Na-K 2Ti 6O 13 showed highest photocatalytic activity for the degradation of dye with 87% degradation within 80 min of illumination. The enhanced photocatalytic activity could be attributed to direct interfacial charge transfer (IFCT) from VB of Na-K 2Ti 6O 13 to the surface grafted Cu(II) nanocluster.
AB - A novel visible light sensitive Cu(II)-nanocluster grafted Na-K 2Ti 6O 13 photocatalyst was prepared via molten salt method followed by impregnation technique. The prepared samples were characterized with various analytical techniques to validate the grafting of nanocluster onto the surface of Na-K 2Ti 6O 13. TEM analysis shows belt-like morphology with diameter of 10–20 nm. In addition, a cluster of size less than 5 nm was observed on the surface of the catalyst belt, indicating the grafting of Cu(II) rather than its doping onto the catalyst lattice. The surface modified Na-K 2Ti 6O 13 nano-belt showed propitious photocatalytic activity over pure Na-K 2Ti 6O 13 for the degradation of Rhodamine B. Among the series of different wt% Cu-grafting, 0.1% Cu-grafted Na-K 2Ti 6O 13 showed highest photocatalytic activity for the degradation of dye with 87% degradation within 80 min of illumination. The enhanced photocatalytic activity could be attributed to direct interfacial charge transfer (IFCT) from VB of Na-K 2Ti 6O 13 to the surface grafted Cu(II) nanocluster.
KW - Cu-grafted Na-K Ti O
KW - Photocatalysis
KW - Visible light-mediated dye degradation
UR - http://www.scopus.com/inward/record.url?scp=85042864930&partnerID=8YFLogxK
U2 - 10.1016/j.matlet.2018.02.132
DO - 10.1016/j.matlet.2018.02.132
M3 - Article
VL - 220
SP - 50
EP - 53
JO - Materials letters
JF - Materials letters
SN - 0167-577X
ER -