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|
| Type |
Poster Presentation |
| Area |
Physical Chemistry |
| Room No. |
Grand Ballroom |
| Time |
10월 19일 (금요일) 11:00~12:30 |
| Code |
PHYS.P-204 |
| Subject |
Dual Transition metal doped MoS2 as an effocacious charge separator on CdS – Intensely active and stable visible light sensitive semiconductor for water splitting into hydrogen |
| Authors |
Sumin Seo, Seunghee Kim, Praveen Kumar Dharani, Putta Rangappa, TaeKyu Kim*
Department of Chemistry, Pusan National University, Korea
|
| Abstract |
The importance of hydrogen (H2) played a major role as an substitute clean fuel to compete future energy demands. Therefore, its great demand to look for cost effective, highly efficient and renewable ways to produce hydrogen. Photo catalysis is considered an effective way to satisfy above challenges with no environmental issues. However, development of highly efficient photo catalysts which can function under visible light is still challenging. Herein, we report dual metal Fe-Co doped MoS2 coupled onto one dimensional CdS nanorods to approach these. The photo catalytic performances of as prepared few layered Fe-Co doped MoS2 integrated on to CdS (FCM/CdS) assessed by photo splitting of water into hydrogen in existence of lactic acid as a hole (h+) scavenger. The extraordinary hydrogen generation rate of 190 mmol∙h-1∙g-1 a 50 folds higher than that of bare CdS has been achieved. This improved activity arises from synergistic effects of dual transition metal doped MoS2. Which promotes effective charge separation of photo generated carriers and improves the surface shuttling properties and enhanced hydrogen generation rate. The remarkable photocatalytic activity of FCM/CdS nanocomposites resulted from improved edge sites, enhanced electronic conductivity, and the existence of new active sites. The H2 production rate achieved with bi-metallic doped MoS2-based CdS photo catalyst for photo splitting of water is the highest activity observed to date. As a result, because of low cost and high efficiency of this system, it opens new windows for possible applications to use as a photo catalyst in various fields. |
| E-mail |
sumin30222@gmail.com |
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122nd General Meeting of the KCS