Selective adsorption and decomposition of pollutants using RGO-TiO2 with optimized surface functional groups
作者： Yunfei Sun , Yanfeng He , Bo Tang , Zhengtian Wu , Chongben Tao
DOI: 10.1039/C8RA05345F
关键词:
摘要: Reduced graphene oxide (RGO) samples with optimized types of surface functional groups were hybridized TiO2 to achieve the selective adsorption and removal various pollutants. A high ratio hydroxyl was found be remarkably advantageous for adsorbtion decomposition rhodamine-B (and similar pollutants), while a carboxyl promote ability adsorb decompose phenol. Moreover, presence on RGO edge provides pre-condition form close chemical connection TiO2, which has been proven by obtained electron paramagnetic resonance (EPR) curve, infrared spectroscopy (IR) lifetime. The resulting composite photocatalysts display excellent photocatalytic activities under both UV- visible-light illumination, indicating that well-designed micro-circumstances are quite significant.
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