制备了有序介孔碳-氧化钛吸附-光催化剂,利用可见光高效降解水中苯酚.为去除水中高浓度苯酚,设计了吸附-光催化循环,即暗条件吸附8h,分离催化剂和将固体催化剂置于可见光下辐照8h.经过10次循环,水中高浓度苯酚(200 mg/L)几乎可被完全降解.详细讨论了TiO2晶格中非金属掺杂、介孔碳壁对TiO2纳米颗粒聚集的阻抑作用、介孔孔道吸附苯酚性能等因素对吸附-光催化剂性能的影响.有序介孔碳-氧化钛复合体有效地结合了物理吸附和光化学降解技术,有望用于降解水中难生物降解的高浓度有机污染物.
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