DataVXphysica status solidi (a)Paper
journal article·2019-05

CdSe Quantum Dots Doped WS2 Nanoflowers for Enhanced Solar Hydrogen Production

Mahider Tekalgne, Amirhossein Hasani, Quyet Van Le, Thang Phan Nguyen, Kyoung Soon Choi, Tae Hyung Lee, Ho Won Jang, Zhengtang Luo, Soo Young Kim

physica status solidi (a)· Volume 216· Issue 9
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Source abstract

Abstract

In this paper, a facile method for synthesizing WS2 nanoflowers (NFs) and CdSe quantum dots (QDs) using hydrothermal and hot injection methods, are reported, respectively. Additionally, the photocatalytic activity of a CdSe QDs/WS2 NF nanocomposite is analyzed in a typical three‐electrode electrochemical cell. It is found that the CdSe QDs/WS2 NF hybrid exhibits a current density of −1.12 mA at 0 V and a Tafel slope of 82 mV dec−1, which are superior to the values of bare WS2 NFs (current density of −0.25 mA and Tafel slope of 150 mV dec−1). This improvement of photocatalytic performance is attributed to the wide range of light absorption for e−/h+ generation provided by the CdSe QDs, as well as the large surface area and numerous active sites for hydrogen production provided by WS2 NFs. Therefore, the CdSe QDs/WS2 NF hybrid structure is a promising candidate for highly effective and stable photocatalytic performance under solar light illumination for hydrogen production.
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Research context

NanomaterialsCatalysis & surfaces

OpenAlex topics: Advanced Photocatalysis Techniques · Copper-based nanomaterials and applications · Quantum Dots Synthesis And Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Chemical Engineering and Materials Science Institute of Interdisciplinary Convergence Research Chung‐Ang University Integrative Research Center for Two‐Dimensional Functional Materials 84 Heukseok‐ro, Dongjak‐gu Seoul 06974 Republic of Korea

Institute of Research and Development Duy Tan University Da Nang 550000 Vietnam

Advanced Nano‐Surface Research Group Korea Basic Science Institute 169‐148, Gwahak‐ro, Yuseong‐gu Daejeon 34133 Republic of Korea

Department of Materials Science and Engineering Research Institute of Advanced Materials Seoul National University Seoul Republic of Korea

Department of Chemical and Biomolecular Engineering The University of Hong Kong Science and Technology Clear Water Bay Kowloon Hong Kong

References (43)

Show source-provided references
1. 10.1007/s11708-012-0228-410.1007/s11708-012-0228-4 ↗
2. 10.1039/C3CS60378D10.1039/C3CS60378D ↗
3. 10.1039/B800489G10.1039/B800489G ↗
4. Nguyen T. P. · Electrochim. Acta · 2018
5. 10.1002/adom.20160033310.1002/adom.201600333 ↗
6. 10.1002/adma.20170259810.1002/adma.201702598 ↗
7. 10.1166/sam.2015.189110.1166/sam.2015.1891 ↗
8. 10.1039/C4CP04412F10.1039/C4CP04412F ↗
9. 10.1016/j.flatc.2017.04.00210.1016/j.flatc.2017.04.002 ↗
10. 10.1002/pssr.20140916510.1002/pssr.201409165 ↗
11. 10.1021/acsnano.5b0150410.1021/acsnano.5b01504 ↗
12. 10.1039/C4CP01598C10.1039/C4CP01598C ↗
13. 10.1002/adfm.20150133310.1002/adfm.201501333 ↗
14. 10.1039/C7TA03845C10.1039/C7TA03845C ↗
15. 10.1021/acsami.7b1247810.1021/acsami.7b12478 ↗
16. 10.1002/anie.20140231510.1002/anie.201402315 ↗
17. 10.1016/j.electacta.2018.07.05010.1016/j.electacta.2018.07.050 ↗
18. 10.1038/s41598-017-13341-z10.1038/s41598-017-13341-z ↗
19. 10.1016/j.jcis.2017.11.02310.1016/j.jcis.2017.11.023 ↗
20. 10.1021/jp101308e10.1021/jp101308e ↗
21. 10.1016/j.catcom.2017.05.02910.1016/j.catcom.2017.05.029 ↗
22. 10.1021/acs.iecr.6b0151110.1021/acs.iecr.6b01511 ↗
23. 10.1021/jz100796610.1021/jz1007966 ↗
24. 10.1016/j.jphotochemrev.2011.02.00310.1016/j.jphotochemrev.2011.02.003 ↗
25. 10.1039/C4TA04461D10.1039/C4TA04461D ↗
26. 10.1016/j.apcatb.2014.03.00210.1016/j.apcatb.2014.03.002 ↗
27. 10.1039/C3CS60425J10.1039/C3CS60425J ↗
28. 10.1002/cssc.20150154410.1002/cssc.201501544 ↗
29. 10.1016/j.apcatb.2016.06.06510.1016/j.apcatb.2016.06.065 ↗
30. 10.1002/ange.20130747510.1002/ange.201307475 ↗
31. 10.1016/j.apcata.2018.09.00810.1016/j.apcata.2018.09.008 ↗
32. 10.1021/jp808562x10.1021/jp808562x ↗
33. 10.1038/srep0328210.1038/srep03282 ↗
34. 10.1016/j.nanoen.2016.11.01110.1016/j.nanoen.2016.11.011 ↗
35. 10.1016/j.jiec.2014.01.01910.1016/j.jiec.2014.01.019 ↗
36. 10.1038/3500353510.1038/35003535 ↗
37. 10.1063/1.311722110.1063/1.3117221 ↗
38. 10.1002/asia.20150037410.1002/asia.201500374 ↗
39. 10.1021/ja800782510.1021/ja8007825 ↗
40. 10.1021/jp200677710.1021/jp2006777 ↗
41. 10.1186/s11671-017-2101-110.1186/s11671-017-2101-1 ↗
42. 10.1039/C6EE00144K10.1039/C6EE00144K ↗
43. 10.1021/ja404851s10.1021/ja404851s ↗