Construction of hollow ZnO/Mn-ZIF-67 heterojunction photocatalysts: enhanced photocatalytic performance and mechanistic insight

2021 ◽  
Author(s):  
Nannan Liu ◽  
Simin Shang ◽  
Dajun Shi ◽  
Qingrong Cheng ◽  
Zhi-Quan Pan

Thanks to unique structure and properties of MOFs, a well-designed novel hollow ZnO/Mn-ZIF-67 composites photocatalyst was synthesized by a facile sonocrystallization approach successfully. The hollow ZnO/Mn-ZIF-67 composites exhibited higher photocatalytic...

2020 ◽  
Vol 44 (16) ◽  
pp. 6384-6393 ◽  
Author(s):  
Nannan Liu ◽  
Qigao Shang ◽  
Ke Gao ◽  
Qingrong Cheng ◽  
Zhiquan Pan

Heterostructure construction in photocatalysts is an effective method to improve their catalytic activity because of the remarkable role that the heterostructure plays in charge separation.


2020 ◽  
Vol 11 ◽  
pp. 631-650 ◽  
Author(s):  
Wei Fang ◽  
Liang Yu ◽  
Lan Xu

Inorganic semiconductor oxides loaded on composite nanofibers (CNFs) have been widely applied in environmental monitoring, industry, aviation, and transportation. In this paper, heterostructured CuO–ZnO-loaded CNF membranes (CNFMs) were prepared successfully by a combination of electrospinning, heat treatment, and hydrothermal synthesis. The influence of the synthesis parameters on morphology, structure, and properties of the CNFMs was investigated, and the optimal process parameters were determined. Then, the CNFMs obtained with optimal process parameters were applied for the photocatalytic degradation of methyl orange. It was found that the CNFMs could be reused to degrade methyl orange at least three times, and the degradation rate remained above 90%.


Small ◽  
2017 ◽  
Vol 13 (48) ◽  
pp. 1702253 ◽  
Author(s):  
Lan Yuan ◽  
Bo Weng ◽  
Juan Carlos Colmenares ◽  
Yugang Sun ◽  
Yi-Jun Xu

2020 ◽  
Vol 7 (3) ◽  
pp. 861-879 ◽  
Author(s):  
Tianyu Zeng ◽  
Dajun Shi ◽  
Qingrong Cheng ◽  
Guiying Liao ◽  
Hong Zhou ◽  
...  

A new phosphonate-based MOF/P–TiO2Z-scheme heterojunction photocatalyst had been successfully prepared for the environmental remediation.


2020 ◽  
Vol 7 (12) ◽  
pp. 2287-2304 ◽  
Author(s):  
Reza Abazari ◽  
Ali Morsali ◽  
Deepak P. Dubal

Pharmaceuticals are considered as emerging organic contaminants that have become a serious environmental problem, which endanger human health and environmental bio-diversity.


2014 ◽  
Vol 472 ◽  
pp. 831-834
Author(s):  
Jie Wang ◽  
Xiao Yong Pan ◽  
Ling Peng ◽  
Yu Liu ◽  
Nian Jie Wang

Silver-deposited zinc oxide whisker (Ag/ZnOw) composites with different Ag/Zn molar ratios (MRs) were successfully synthesized by a simple method. Subsequently, the structure and properties of these composites were characterized using various tests. It is found that the silver nanoparticles are located on the root of ZnOw, which is beneficial for the antibacterial and photocatalytic performance of ZnOw. The Ag/ZnOw composite exhibits better antibacterial and photocatalytic activities than that of the pure ZnOw, and the efficiency of both properties increase with increasing molar ratio of Ag/Zn. Moreover, the mechanism which governs the photocatalytic property of the composite has also been discussed thoroughly.


2019 ◽  
Vol 7 (4) ◽  
pp. 1543-1553 ◽  
Author(s):  
Yang Hu ◽  
Huifeng Wang ◽  
Haiqing Song ◽  
Megan Young ◽  
Yaqian Fan ◽  
...  

Among various polymeric gene delivery systems, peptide-based vectors demonstrate great potential owing to their unique structure and properties, including flexibility; however, there is insufficient molecular understanding of the role and properties of amino acids as building blocks in gene delivery.


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