Three-dimensional MoS 2 /reduced graphene oxide aerogel as a macroscopic visible-light photocatalyst
Three-dimensional MoS 2 /reduced graphene oxide aerogel as a macroscopic visible-light photocatalyst
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DOI：
10.1016/s1872-2067(16)62568-8
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发表时间：
2017-02
影响因子：
16.5
通讯作者：
Ruiyang Zhang;W. Wan;Dawei Li;F. Dong;Ying Zhou
中科院分区：
文献类型：
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作者：
Ruiyang Zhang;W. Wan;Dawei Li;F. Dong;Ying Zhou
光催化被认为是解决当今紧迫的环境和能源问题的理想技术。在已报道的光催化剂中，二硫化钼(MoS_2)在制氢和光降解污染物方面具有很好的应用前景。然而，其活性中心的缺乏和粉末状催化剂回收的困难阻碍了其广泛应用。在这里，我们成功地制备了宏观可见光响应型MoS_2/还原石墨烯氧化物(MoS_2/RGO)气凝胶。与制备的MoS2/RGO气凝胶相比，MoS2/RGO气凝胶对氢气的光催化活性和对Cr(VI)的光还原活性都有所提高。此外，MoS_2/RGO气凝胶的低密度(56.1 mg/cm~3)使其成为一种有效的有机污染物吸附材料。我们的结果表明，这种非常有前途的多功能气凝胶在环境修复和清洁能源生产中具有潜在的应用前景。
Photocatalysis is regarded as an ideal technology for solving the urgent environmental and energy issues that we face today. Among the reported photocatalysts, molybdenum disulfide (MoS2) is very promising for applications in hydrogen production and pollutant photodegradation. However, its lack of active sites and the difficulty of recovering catalysts in powder form have hindered its wide application. Here, we report the successful preparation of a macroscopic visible-light responsive MoS2/reduced graphene oxide (MoS2/RGO) aerogel. The obtained MoS2/RGO aerogel exhibits enhanced photocatalytic activity towards hydrogen production and photoreduction of Cr(VI) in comparison with the MoS2powder. In addition, the low density (56.1 mg/cm3) of the MoS2/RGO aerogel enables it to be used as an efficient adsorption material for organic pollutants. Our results demonstrate that this very promising multifunctional aerogel has potential applications in environmental remediation and clean energy production.