Caroline Sunyong Lee
한양대학교 · Energy
Caroline Sunyong Lee 교수의 연구실은 광촉매 및 에너지 변환 분야에서 활발한 연구를 수행하고 있습니다. 주로 그래핀 유사 물질, 염화비스무트, 아연 산화물 등 다양한 나노소재를 기반으로 한 복합 광촉매를 개발하여 유기 오염물 제거와 수소 생산에 응용하고 있습니다. 특히, 전하 재결합을 억제하고 광활성 효율을 높이기 위한 이종접합 및 나노조직 제어 기술에 중점을 두고 있습니다. 다양한 촉매 시스템의 설계와 표면 특성 제어를 통해 지속 가능한 환경 및 에너지 기술을 실현하고자 합니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
Graphitic carbon nitride (g-C3N4) was hybridized with CdS nanoparticles and reduced graphene oxide (RGO) sheets using a facile chemical method, for the application of catalytic photodegradation of Rhodamine B and Congo red dyes under irradiation with UV and visible light. Fourier-transform infrared (FTIR) spectroscopy and X-ray photoemission spectroscopy (XPS) analyses confirmed the formation of pure g-C3N4, as well as g-C3N4/CdS, g-C3N4/RGO, and g-C3N4/CdS/RGO composites. The large surface area
Highly stable plasmonic potocatalysts based on Au, graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>), and carbon nanotubes (CNTs) hybrids for effective degradation of organic pollutant and photoelectrchemical (PEC) water splitting.
Visible light-active bismuth oxychloride–reduced graphene oxide (BiOCl–RGO) composite photocatalysts were synthesised using a hydrothermal method at low temperature, and at a low cost. This approach reduced the recombination of electron–hole pairs and thereby provided more efficient photocatalysts. The size of BiOCl structure was controlled by polyvinylpyrrolidone (PVP) addition. Furthermore, formation of nanosized BiOCl sheets and BiOCl–RGO composites were confirmed by X-ray diffraction, X-ray
Aligned 1D ZnO/g-C<sub>3</sub>N<sub>4</sub> films were fabricated by simple refluxing with thermal vapor condensation for rapid charge separation and recyclable test.
Fabrication of 1-D ZnTiO<sub>3</sub> nanofibers and 2-D g-C<sub>3</sub>N<sub>4</sub> based hybrid heterojunctions and their H<sub>2</sub> evolution from water splitting under visible light irradiation.
We engineered high aspect ratio Fe<sub>2</sub>O<sub>3</sub> nanorods (with an aspect ratio of 17 : 1) coated with g-C<sub>3</sub>N<sub>4</sub> using a sequential solvothermal method at very low temperature followed by a thermal evaporation method. Here, the high aspect ratio Fe<sub>2</sub>O<sub>3</sub> nanorods were directly grown onto the FTO substrate under relatively low pressure conditions. The g-C<sub>3</sub>N<sub>4</sub> was coated onto a uniform Fe<sub>2</sub>O<sub>3</sub> nanorod film as
A thermomechanical writing system and a piezoelectric readback system have been demonstrated using silicon cantilevers integrated with heaters and piezoelectric sensors for a low-power scanning-probe-microscopy data-storage system. A thin polymethylmethacrylate film has been used as a media to record data bits of 50 nm in diameter and 25 nm in depth using the silicon cantilever. The sensitivity of 0.22 fC/nm was also obtained using the fabricated cantilever. Finally, to obtain readback signals u
