Facilitated Photocatalytic Degradation of Rhodamine B over One-Step Synthesized Honeycomb-Like BiFeO(3)/g-C(3)N(4) Catalyst.
Facilitated Photocatalytic Degradation of Rhodamine B over One-Step Synthesized Honeycomb-Like BiFeO(3)/g-C(3)N(4) Catalyst.
复制标题
DOI：
10.3390/nano12223970
复制
发表时间：
2022-11-10
期刊：
影响因子：
--
通讯作者：
中科院分区：
文献类型：
--
作者：
采用一步法合成了BiFeO 3/g-C3 N4蜂窝状复合材料，其中BiFeO 3与g-C3 N4之间存在强烈的相互作用。在可见光照射下，10 BiFeO 3/hg-C3 N4在60 min内即可完全降解RhB，降解速率常数明显提高，分别约为原始hg-C3 N4和BiFeO 3的3倍和7倍。这主要归因于：（1）独特的蜂窝状形貌有利于反应物的扩散，通过光的多次反射有效地提高了光能的利用率;（2）带电的染料分子可以紧密结合在自发极化的BiFeO 3表面形成Stern层;（3）Z型异质结和铁电体协同作用促进了光生电荷的有效分离和迁移。该方法可以同步调控g-C3 N4基光催化剂的微纳米结构、表面性质和内部场结构，在环境净化方面具有突出的潜力。
In the present work, a facile one-step methodology was used to synthesize honeycomb-like BiFeO3/g-C3N4 composites, where the well-dispersed BiFeO3 strongly interacted with the hg-C3N4. The 10BiFeO3/hg-C3N4 could completely degrade RhB under visible light illumination within 60 min. The degradation rate constant was remarkably improved and approximately three times and seven times that of pristine hg-C3N4 and BiFeO3, respectively. This is ascribed to the following factors: (1) the unique honeycomb-like morphology facilitates the diffusion of the reactants and effectively improves the utilization of light energy by multiple reflections of light; (2) the charged dye molecules can be tightly bound to the spontaneous polarized BiFeO3 surface to form the Stern layer; (3) the Z-scheme heterojunction and the ferroelectric synergistically promoted the efficient separation and migration of the photogenerated charges. This method can synchronously tune the micro-nano structure, surface property, and internal field construction for g-C3N4-based photocatalysts, exhibiting outstanding potential in environmental purification.
登录
查看更多内容
影响因子：
8.6
作者：
Cui, Yongfei;Briscoe, Joe;Dunn, Steve
通讯作者：
Dunn, Steve
影响因子：
13.6
作者：
Katsumata, Ken-ichi;Motoyoshi, Ryosuke;Okada, Kiyoshi
通讯作者：
Okada, Kiyoshi
影响因子：
5.2
作者：
Li, Yanan;Wang, Min-Qiang;Pu, Shihua
通讯作者：
Pu, Shihua
DOI：
10.3109/10715769309056s79
发表时间：
1993-01-01
期刊：
FREE RADICAL RESEARCH COMMUNICATIONS
影响因子：
--
作者：
BUETTNER, GR
通讯作者：
BUETTNER, GR
影响因子：
15
作者：
Dunn, Steve;Jones, Paul M.;Gallardo, Diego E.
通讯作者：
Gallardo, Diego E.