论文名称：Facile synthesis of Z-scheme BiVO₄/porous graphite carbon nitride heterojunction for enhanced visible-light-driven photocatalyst

作者：Zhongliao Wang, Yao Huo, Jinfeng Zhang, Cheng Lu, Kai Dai, Changhao Liang

单位：Huaibei Normal University

摘要：In this paper, novel two dimensional (2D) Bi₂MoO₆@Ag₂MoO₄?core-shell composites have been successfully prepared by two-step hydrothermal and in-situ generating process. The sheet-structured composites can not only shorten the distance between the charge carriers and active sites, but provide more active sites for photocatalytic performance. Coated Ag₂MoO₄nanoparticles on the surface of Bi₂MoO₆?nanosheets at room temperature has been verified to be an effective approach to prepare 2D core-shell composites, which benefits the formation of large-area heterojunction and boosts the separation of charge carriers. Bi₂MoO₆@Ag₂MoO₄ composites show excellent visible light photocatalytic performance and high stability. The apparent pseudo-first-order rate constant?k_app?for Bi₂MoO₆@Ag₂MoO₄?2:1 is 0.07255 min^?1, which is 7.2 and 10.4 times higher than that of Bi₂MoO₆?(0.01010 min^?1) and Ag₂MoO₄(0.00698 min^?1), respectively. Furthermore, by trapping experiment for reactive species, we demonstrate that holes play a vital role in the process of photocatalytic degradation. Eventually, a reasonable photocatalytic mechanism is proposed.

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影响因子：3.133

分区情况：1区

论文链接：http://www.sciencedirect.com/science/article/pii/S0925838817332012