材料科学
异质结
光催化
氨
量子产额
吸附
量子效率
化学工程
氧化还原
可见光谱
纳米颗粒
纳米技术
光电子学
光化学
催化作用
物理化学
光学
工程类
物理
有机化学
化学
冶金
荧光
生物化学
作者
Jiangzhou Qin,Xia Hu,Xinyong Li,Zhifan Yin,Baojun Liu,Kwok Ho Lam
出处
期刊:Nano Energy
[Elsevier]
日期:2019-04-10
卷期号:61: 27-35
被引量:196
标识
DOI:10.1016/j.nanoen.2019.04.028
摘要
In order to explore efficient photocatalysts for N2 reduction reaction (NRR), 0D AgInS2 nanoparticles and 2D MXene (Ti3C2) nanosheets with different mass ratios are employed for building Z-scheme heterostructures. The resultant hybrids exhibit excellent interfacial charge transfer ability according to their optical and photo-electro properties. As a result, the obtained composite (30 wt% AgInS2) shows significant improvement on the photocatalytic performance for N2 fixation with a high ammonia yield rate of 38.8 μmol/(g∙h) under visible-light illumination (>400 nm). Meanwhile, the DFT calculations show that the activation of N2 in a dinuclear end-on bound structure could lead to high adsorption energy (Ead = −5.20 eV). Moreover, the mechanism of enhanced photocatalytic activity was proposed in terms of the quantum calculation between Ti3C2 and N2. This work provides new systems for enhanced NRR performance.
科研通智能强力驱动
Strongly Powered by AbleSci AI