A novel ternary plasmonic photocatalyst: ultrathin g-C3N4 nanosheet hybrided by Ag/AgVO3 nanoribbons with enhanced visible-light photocatalytic performance
A novel ternary plasmonic photocatalyst: ultrathin g-C3N4 nanosheet hybrided by Ag/AgVO3 nanoribbons with enhanced visible-light photocatalytic performance
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一种新型三元等离子体光催化剂：Ag/AgVO3纳米带杂化的超薄g-C3N4纳米片，具有增强的可见光光催化性能
DOI：
10.1016/j.apcatb.2014.10.016
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发表时间：
2015-04
期刊：
影响因子：
--
通讯作者：
Yang, Shaogui
中科院分区：
文献类型：
--
作者：
Wang, Shaomang;He, Huan;Sun, Cheng;Yang, Shaogui
采用一步原位水热法合成了一种新型的Ag/AgVO_3/C_3N_4三元等离子体光催化剂，在二维(2D)C_3N_4超薄薄膜表面自组装了一维(1D)AgVO_3纳米带和AgNO_3分解生成的Ag纳米粒子。在这种新颖的杂化结构中，一维Ag/AgVO_3纳米带均匀地分散在2D C_3N_4纳米薄片的表面。Ag/AgVO_3/C_3N_4对碱性品红(BF)的光催化活性最高，表观速率常数为0.0701 m in−_1，分别是纯C_3N_4(0.0056 m in−_1)和Ag/AgV_3(0.0226 m in−_1)的12.5倍和3.1倍。三元等离子体光催化剂优异的光催化性能归功于其在可见光区域的吸收增强、对BF分子的良好吸附能力以及在Ag/AgVO_3/C_3N_4中的促进电荷转移。本研究将有助于一种新型等离子体光催化剂的开发，并对满足未来的环境要求具有重要意义。
A novel Ag/AgVO3/C3N4ternary plasmonic photocatalyst was synthesized via a facile one-step in-situ hydrothermal method, in which the self-assembling one-dimensional (1D) AgVO3nanoribbons on the surface of two-dimensional (2D) C3N4ultrathin nanosheets and Ag nanoparticles generated from AgNO3decomposition were achieved simultaneously. In this innovative hybrid structure, 1D Ag/AgVO3nanoribbons are uniformly dispersed on the surfaces of 2D C3N4nanosheets. The Ag/AgVO3/C3N4reveals the highest photocatalytic activity for the degradation of basic fuchsin (BF) with apparent rate constant of 0.0701 min−1, which is about 12.5 and 3.1 times higher than pure C3N4(0.0056 min−1) and Ag/AgVO3(0.0226 min−1), respectively. The excellent photocatalytic performance of the ternary plasmonic photocatalyst can be attributed to the enhanced absorbance in the visible light region, the good adsorptive capacity to BF molecules, and the facilitated charge transfer in Ag/AgVO3/C3N4. The present study will benefit the development of one new plasmonic photocatalyst and be influential in meeting the environmental demands in the future.
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