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학술발표회초록보기

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  • 09월 10일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제124회 대한화학회 학술발표회, 총회 및 기기전시회 안내 MOF-derived CdS nanocomposite for photocatalytic H2O2 production under visible light

등록일
2019년 9월 10일 14시 29분 34초
접수번호
2041
발표코드
INOR.P-129 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 17일 (목요일) 11:00~12:30
발표형식
포스터
발표분야
Inorganic Chemistry
저자 및
공동저자
Jaehwa Lee, Hoi Ri Moon*
Department of Chemistry, Ulsan National Institute of Science and Technology, Korea

In this presentation, we selected CdS as potential photocatalyst under visible light because of its narrow bandgap (2.42 eV) and relatively high conduction band edge position (−0.52 V, vs NHE), and we employed a Cd and S containing metal-organic framework (MOF), [Cd(EDDA)] (EDDA = 2,2’-(ethylenedithio)diacetate), as a precursor for CdS@C nanocomposite. During the thermal conversion, Cd(II) ions were transformed into 5 nm-sized CdS nanoparticles covered with the small amount of carbon (4 wt%). Accordingly, our resultant compound showed efficient H2O2 production under visible light just from H2O and O2 even in the absence of additional hole scavenger and noble metal co-catalysts. Furthermore, the distinctive feature of this work is the continuous H2O2 generation without reaching the saturation point even after 24 h of continuous production. This superior photocatalytic activity to those of earlier reported inorganic photocatalysts might be attributed to the nanosize effect of CdS and thin carbon layers on the surface.


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