2D/2D Graphitic Carbon Nitride/Antimonene Heterostructure: Structural Characterization and Application in Photocatalysis

被引：41

作者：

Barrio, Jesus ^{[1
,2
]}

Gibaja, Carlos ^{[3
]}

Tzadikov, Jonathan ^{[1
,2
]}

Shalom, Menny ^{[1
,2
]}

Zamora, Felix ^{[3
,4
,5
,6
]}

机构：

[1] Ben Gurion Univ Negev, Dept Chem, IL-8410501 Beer Sheva, Israel

[2] Ben Gurion Univ Negev, Ilse Katz Inst Nanoscale Sci & Technol, IL-8410501 Beer Sheva, Israel

[3] Univ Autonoma Madrid, Dept Quim Inorgan, E-28049 Madrid, Spain

[4] Inst Madrileno Estudios Avanzados Nanociencia IMD, E-28049 Madrid, Spain

[5] Univ Autonoma Madrid, Condensed Matter Phys Ctr IFIMAC, E-28049 Madrid, Spain

[6] Univ Autonoma Madrid, Inst Adv Res Chem Sci IAdChem, E-28049 Madrid, Spain

来源：

ADVANCED SUSTAINABLE SYSTEMS | 2019年 / 3卷 / 02期

基金：

以色列科学基金会;

关键词：

2D materials; antimonene; graphitic carbon nitride; layered heterostructures; photocatalysis; NITRIDE; GRAPHENE; EVOLUTION; ANTIMONENE; REDUCTION; CRYSTALS; G-C3N4; CO2;

D O I：

10.1002/adsu.201800138

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Sandwiched van der Waals heterostructures based on the combination of suitable layered materials can give rise to novel nanomaterials with enhanced properties due to synergic effects. In this work, a simple two-step procedure based on the mixture of two suspensions containing the graphitic carbon nitride and antimonene flakes is used to produce heterostructures of different compositions, CNSbx. The materials have been characterized using spectroscopic, diffractometric, and microscopic techniques. The results confirm that carbon nitride (CN) and antimonene flakes are well-connected, forming a type I heterojunction. The CNSbx van der Waals heterostructures show improvements in the optical absorption as well as charge separation under illumination, as well as greater photoactivity in the degradation of organic pollutants to that showed for pristine CN. These results suggest potential applications in photoelectrochemical devices for heterostructures based on the combination of CNs with antimonene.

引用

页数：7

共 44 条

[1] Noncovalent Functionalization and Charge Transfer in Antimonene [J].