학술논문
유기오염원 분해를 위한 flower-like TiO₂sphere/rGO 복합체의 향상된 광촉매적 특성 연구 / Enhanced photocatalytic activity of flower-like TiO₂sphere/rGO composites for degradation of organic pollutants
Document Type
Dissertation/ Thesis
Author
Source
Subject
Language
English
Abstract
In this study, novel flower-like TiO₂sphere (FTS)/reduced graphene oxide (rGO) composites (FTS-G) were synthesized via a hydrothermal method. The photocatalytic performance of the FTS-G composites was evaluated through the photodegradation of rhodamine B (Rh B) and trichloroethylene (TCE) under simulated solar light irradiation. The rGO to FTS ratio in the composites significantly affected photocatalytic activity. The photocatalytic activities of FTS-Gs in the degradation of Rh B and TCE were superior to that of pure FTS. Of all the FTS-G composites tested, FTS-G with 1 wt% rGO (FTS-G-1) had the greatest photocatalytic activity, while FTS-G composites with rGO contents over 1 wt% had lower photocatalytic activities. Additionally, it is expected that the synthesis of FTS with a high specific surface area and well-developed pore structure and simultaneous conversion of GO to graphene-like rGO without the use of strong reducing agents could be a promising strategy to prepare other carbon-based flower-like TiO₂sphere composite photocatalysts.