Enhancement of photocatalytic activity of a two-dimensional GeH/graphene heterobilayer under visible light

RSC Advances ◽  
2015 ◽  
Vol 5 (64) ◽  
pp. 52264-52268 ◽  
Author(s):  
Hao Jin ◽  
Ying Dai ◽  
Xiang-Chao Ma ◽  
Lin Yu ◽  
Wei Wei ◽  
...  

The structural, electronic, and optical properties of GeH as well as a GeH/graphene heterointerface are studied based on hybrid DFT calculations including the nonlocal vdW correction.

2021 ◽  
Vol 9 (14) ◽  
pp. 4971-4977
Author(s):  
Mehmet Emin Kilic ◽  
Kwang-Ryeol Lee

Tetrahexagonal AlN: a novel two-dimensional family for photocatalytic water splitting with exceptional mechanical, electronic, and optical properties.


2020 ◽  
Vol 10 (10) ◽  
pp. 3279-3289 ◽  
Author(s):  
Deobrat Singh ◽  
Pritam Kumar Panda ◽  
Nabil Khossossi ◽  
Yogendra Kumar Mishra ◽  
Abdelmajid Ainane ◽  
...  

The present work systematically investigates the structural, electronic, and optical properties of MoS2/Si2BN heterostructures based on first-principles calculations.


2019 ◽  
Vol 21 (27) ◽  
pp. 14904-14910 ◽  
Author(s):  
Yan Liang ◽  
Jianwei Li ◽  
Hao Jin ◽  
Baibiao Huang ◽  
Ying Dai

The highly desired electronic and optical properties of the proposed 2D Sb2Te2X compounds place them in the realm of electronic and photovoltaic materials.


2019 ◽  
Vol 34 (01n03) ◽  
pp. 2040067 ◽  
Author(s):  
Dessy Ariyanti ◽  
Surayya Mukhtar ◽  
Nisar Ahmed ◽  
Zhuofeng Liu ◽  
Junzhe Dong ◽  
...  

Surface modification has been used as a method to create defects on [Formula: see text] materials, which can improve their desirable properties. In this paper, defected [Formula: see text] nano-powder was successfully synthesized by chemical reduction using [Formula: see text] as the reducing agent at 300–400[Formula: see text] under argon atmosphere. High defect concentration can be produced by increasing process temperature. The modified [Formula: see text] shows good visible light absorption and photocatalytic activity on degradation of Rhodamine B (4–9 times higher than the pristine [Formula: see text]) with the visible light irradiation. Further XPS analysis and theoretical studies using full potential linearized augmented plane wave (FP-LAPW) method as implemented in wien2k code revealed the existence of oxygen vacancy and [Formula: see text] in the modified samples. These types of defects were responsible for the modifications of the electronic and optical properties of [Formula: see text], resulting in the improved photocatalytic activity in visible light irradiation.


2021 ◽  
Vol 23 (6) ◽  
pp. 3963-3973
Author(s):  
Jianxun Song ◽  
Hua Zheng ◽  
Minxia Liu ◽  
Geng Zhang ◽  
Dongxiong Ling ◽  
...  

The structural, electronic and optical properties of a new vdW heterostructure, C2N/g-ZnO, with an intrinsic type-II band alignment and a direct bandgap of 0.89 eV at the Γ point are extensively studied by DFT calculations.


2021 ◽  
Vol 130 ◽  
pp. 114690
Author(s):  
Xinxin Deng ◽  
Bingcheng Luo ◽  
Zili Zhang ◽  
Changchun Zhao ◽  
Mengjun Shi ◽  
...  

RSC Advances ◽  
2021 ◽  
Vol 11 (45) ◽  
pp. 28381-28387
Author(s):  
Thi-Nga Do ◽  
Nguyen N. Hieu ◽  
N. A. Poklonski ◽  
Nguyen Thi Thanh Binh ◽  
Cuong Q. Nguyen ◽  
...  

Although O is an element of chalcogen group, the study of two-dimensional (2D) O-based Janus dichalcogenides/monochalcogenides, especially their 1T-phase, has not been given sufficient attention.


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