Facile synthesis of Ag/Zn1-xCuxO nanoparticle compound photocatalyst for high-efficiency photocatalytic degradation: Insights into the synergies and antagonisms between Cu and Ag

2021 ◽  
Vol 47 (1) ◽  
pp. 48-56 ◽  
Author(s):  
Kaiyi Luo ◽  
Qiuping Zhang ◽  
Huan Yuan ◽  
Yutong Liu ◽  
Xiaoyi Wang ◽  
...  
Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3816
Author(s):  
Xiaojie Li ◽  
Xin Li ◽  
Pei Zuo ◽  
Xiaozhe Chen ◽  
Misheng Liang ◽  
...  

TiO2 is popular in photocatalytic degradation dye pollutants due to its abundance and its stability under photochemical conditions. Au loaded TiO2 can achieve efficient absorption of visible light and deal with the problem of low conversion efficiency for solar energy of TiO2. This work presents a new strategy to prepare Au nanoparticles-loaded TiO2 composites through electric−field−assisted temporally−shaped femtosecond laser liquid-phase ablation of Au3+ and amorphous TiO2. By adjusting the laser pulse delay and electric field parameters, gold nanoparticles with different structures can be obtained, such as nanospheres, nanoclusters, and nanostars (AuNSs). AuNSs can promote the local crystallization of amorphous TiO2 in the preparation process and higher free electron density can also be excited to work together with the mixed crystalline phase, hindering the recombination between carriers and holes to achieve efficient photocatalytic degradation. The methylene blue can be effectively degraded by 86% within 30 min, and much higher than the 10% of Au nanoparticles loaded amorphous TiO2. Moreover, the present study reveals the crystallization process and control methods for preparing nanoparticles by laser liquid ablation, providing a green and effective new method for the preparation of high-efficiency photocatalytic materials.


2021 ◽  
Vol 6 (29) ◽  
pp. 7295-7305
Author(s):  
Jing Xu ◽  
Zhihao Ren ◽  
Xiaoyuan Qiu ◽  
Pengfei Zhu ◽  
Dandan Chen ◽  
...  

2018 ◽  
Vol 29 (7) ◽  
pp. 1644-1654 ◽  
Author(s):  
Xiaolong Hu ◽  
Zhiming Sun ◽  
Junying Song ◽  
Guangxin Zhang ◽  
Shuilin Zheng

2020 ◽  
Vol 8 (25) ◽  
pp. 5547-5548
Author(s):  
Xiao Xiao ◽  
Shasha Zheng ◽  
Xinran Li ◽  
Guangxun Zhang ◽  
Xiaotian Guo ◽  
...  

Correction for ‘Facile synthesis of ultrathin Ni-MOF nanobelts for high-efficiency determination of glucose in human serum’ by Xiao Xiao et al., J. Mater. Chem. B, 2017, 5, 5234–5239, DOI: 10.1039/C7TB00180K.


2020 ◽  
Vol 340 ◽  
pp. 294-301 ◽  
Author(s):  
Youyi Sun ◽  
Congxu Wang ◽  
Guizheng Gu ◽  
Yibing Ma ◽  
Zhiyuan Xiong ◽  
...  

2019 ◽  
Vol 253 ◽  
pp. 1066-1078 ◽  
Author(s):  
Ghani Ur Rehman ◽  
Muhammad Tahir ◽  
P.S. Goh ◽  
A.F. Ismail ◽  
Alireza Samavati ◽  
...  

2020 ◽  
Vol 16 ◽  
pp. 1683-1692 ◽  
Author(s):  
Dominik Göbel ◽  
Marius Friedrich ◽  
Enno Lork ◽  
Boris J Nachtsheim

Herein, we present a facile synthesis of three azide-functionalized fluorophores and their covalent attachment as triazoles in Huisgen-type cycloadditions with model alkynes. Besides two ortho- and para-bromo-substituted benzaldehydes, the azide functionalization of a fluorene-based structure will be presented. The copper(I)-catalyzed azide–alkyne cycloaddition (CuAAC) of the so-synthesized azide-functionalized bromocarbaldehydes with terminal alkynes, exhibiting different degrees of steric demand, was performed in high efficiency. Finally, we investigated the photophysical properties of the azide-functionalized arenes and their covalently linked triazole derivatives to gain deeper insight towards the effect of these covalent linkers on the emission behavior.


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