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  • 전임교원이 최근 5년간 출판한 논문 중, 연도별 카테고리별 피인용 상위 1%에 달성된 논문
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SCIE Article

Single-step sensitization of reduced graphene oxide sheets and CdS nanoparticles on ZnO nanorods as
Author Pawar, Rajendra C.; Lee, Caroline Sunyong
Corresponding Author Info Lee, Caroline Sunyong (이선영, 재료화학공학과)
E-mail 메일sunyonglee@hanyang.ac.kr
Document Type
Source APPLIED CATALYSIS B-ENVIRONMENTAL 2014, 144, 57-65
Times Cited 77 (17.08.28.기준)
External Information pdfhttp://www.sciencedirect.com/science/article/pii/S0926337313004050
Abstract - 5월/6월 2016부로, 이 인용 빈도가 높은 논문의 인용 횟수가 분야와 출판 연도에 대해 Chemistry 관련 학술 분야에서 상위 1%에 올랐습니다.
- 출판연도: JAN 2014

<Abstract>
Novel composite photocatalysts composed of reduced graphene oxide (RGO) sheets, CdS nanoparticles (CNPs), and ZnO nanorods were developed using a simple low-temperature chemical approach. The RGO sheets and CNPs were sensitized via single-step chemical bath deposition at 70 degrees C. Because of the incorporation of RGO into the CdS and ZnO structures, the photodegradation performance toward methylene blue (MB) degradation under visible light illumination was significantly improved compared with that of just CdS and ZnO. The highest kinetic rate constant (k = 0.028 min(-1)) using 0.20 wt% of added RGO was four times higher than that without graphene. This composite degraded MB within 40 min. Such improved performance resulted from effective separation of electron-hole pairs by the RGO sheets. Photoluminescence quenching, increased optical absorbance, and high specific surface area (23.08 m(2) g(-1)) also contributed to the high degradation efficiency. An energy level diagram was constructed to explain how the RGO sheets minimized the recombination rate. The developed RGO-CdS-ZnO composites have a potential application in water purification devices.
Web of Science Categories Chemistry, Physical; Engineering, Environmental; Engineering, Chemical
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