Self-Assembly of Semiconductor Nanoparticles/Reduced Graphene Oxide (RGO) Composite Aerogels for Enhanced Photocatalytic Performance and Facile Recycling in Aqueous Photocatalysis
Self-Assembly of Semiconductor Nanoparticles/Reduced Graphene Oxide (RGO) Composite Aerogels for Enhanced Photocatalytic Performance and Facile Recycling in Aqueous Photocatalysis
复制标题
半导体纳米颗粒/还原氧化石墨烯 (RGO) 复合气凝胶的自组装可增强光催化性能并易于在水相光催化中回收
DOI：
10.1021/sc5006473
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发表时间：
2015-02-01
影响因子：
8.4
通讯作者：
Li, Zhaohui
中科院分区：
文献类型：
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作者：
Liu, Wenjun;Cai, Jingyu;Li, Zhaohui
以L-赖氨酸为还原剂和交联剂，采用一锅水热法制备了BiOBr/还原氧化石墨烯（RGO）复合气凝胶。由于其大的Brunauer-Emmett-Teller比表面积和海绵性质，其对污染物的吸附增强，由于其极轻的性质和RGO促进光生电荷分离而改善的光吸收，这有助于BiOBr/RGO气凝胶在水体系中的光催化降解的增强活性。BiOBr/RGO气凝胶也显示出高稳定性，并且可以容易地从反应体系中分离以用于回收。采用一锅法制备了BiOX/RGO（X = Cl和I）、CdS/RGO和Fe 2 O3/RGO气凝胶，这些气凝胶结合了联合收割机的光催化活性和易于回收的优点，在水溶液中具有广泛的应用前景。
A BiOBr/reduced graphene oxide (RGO) composite aerogel with BiOBr nanoplates grown on an interconnected three-dimensional RGO-based porous network was prepared by one-pot hydrothermal method using l-lysine as a reducing agent and the cross-linker. Its enhanced adsorption toward pollutants owing to its large Brunauer–Emmett–Teller specific surface area and spongy nature, improved light absorption due to its extremely lightweight nature and the RGO promoting photogenerated charge separation contributed to the BiOBr/RGO aerogel’s enhanced activity for photocatalytic degradation in an aqueous system. The BiOBr/RGO aerogel also showed high stability and can be easily separated from the reaction systems for recycling. The facile one-pot method has been proved to be generic in the formations of different semiconductor embedded RGO aerogels like BiOX/RGO (X = Cl and I), CdS/RGO and Fe2O3/RGO aerogels, which combine the advantages of enhanced photocatalytic activity with facile recycling for applications in aqueou...