Kyushu University · 에너지
Chitiphon Chuaicham 교수의 연구실은 광촉매 소재 개발에 초점을 맞추고 있으며, 특히 나노구조 산화물(예: ZnTiO₃, g-C₃N₄, 철 옥살레이트)과 천연 점토(세피올라이트 등)를 기반으로 한 복합 광촉매 시스템을 연구하고 있습니다. 전자 함몰 상태 분석을 위한 에너지 해상도 전자 함몰 분포(ERDT) 기법을 응용해 광촉매의 전자 이동성과 반응성 메커니즘을 정량적으로 규명하고 있으며, 유기 오염물 제거에 효과적인 고성능 광촉매의 설계를 목표로 합니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
In this study, ZnTi-mixed metal oxides (ZTM), such as ZnTiO<sub>3</sub>, were synthesized from ZnTi layered double hydroxides by varying the molar ratio of Zn/Ti, calcination temperatures, and synthesis methods (hydrothermal or reflux). The surface electronic characteristics of ZTM were investigated by the energy-resolved distribution of electron traps (ERDTs) using reversed double-beam photoacoustic spectroscopy. The ZTM samples obtained by conducting hydrothermal synthesis at 500 °C showed sim
The photocatalytic activity of sepiolite was examined for degradation of several dye compounds under visible light irradiation. Higher adsorption capacities and greater photocatalytic performance of cationic dyes (rhodamine B and methylene blue) were observed on sepiolite, in comparison with anionic dyes (orange II and trypan blue). Superiority in the photocatalytic activity of cationic dyes is attributed to the strong electrostatic attraction and photosensitization properties of cationic dye mo
We report for the first time to our knowledge the identification of heteroatom-doped and undoped C<sub>3</sub>N<sub>4</sub> with the energy-resolved distribution of electron traps (ERDT) near the conduction band bottom position (CBB) using reversed double-beam photoacoustic spectroscopy. The ERDT/CBB pattern is used to classify the type of elemental doping in C<sub>3</sub>N<sub>4</sub>, related to photocatalytic efficiency.
Photocatalysis is a remarkable methodology that is popular and applied in different interdisciplinary research areas such as the degradation of hazardous organic contaminants in wastewater. In recent years, clay-based photocatalyst composites have attracted significant attention in the field of photocatalysis owing to their abundance, excellent light response ability, and stability. This review describes the combination of clay with focusing photocatalysts such as TiO2, g-C3N4, and Bi-based comp
In this study, iron oxalate dihydrate (FOD-ore) was produced from iron ore by the process using oxalic acid to extract iron, followed by photo-reduction. Several techniques, such as X-ray powder diffraction (XRD), Raman, scanning electron microscopy with energy dispersive X-Ray analysis (SEM-EDX), ultraviolet–visible diffuse reflectance spectroscopy (UV-DRS), photoluminescence spectroscopy (PL), and X-ray photoelectron spectroscopy (XPS), were used to determine the physicochemical properties of
