scholarly journals Synthesis of Porous Octahedral ZnO/CuO Composites from Zn/Cu-Based MOF-199 and Their Applications in Visible-Light-Driven Photocatalytic Degradation of Dyes

2019 ◽  
Vol 2019 ◽  
pp. 1-16 ◽  
Author(s):  
Tran Thanh Minh ◽  
Nguyen Thi Thanh Tu ◽  
Tran Thi Van Thi ◽  
Le Thi Hoa ◽  
Hoang Thai Long ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Metal Organic Framework ◽  
Phenol Red ◽  
Microwave Assisted ◽  
Degradation Reactions ◽  
Degradation Of Dyes ◽  
Visible Light Driven ◽  
Metal Organic ◽  
Microwave Assisted Method

In the present paper, a porous octahedral (ZnO/CuO) composite is synthesized from zinc/copper-based metal-organic framework-199, and its applications in visible-light-driven photocatalytic degradation of dyes are demonstrated. The precursors of Zn-BTC, Cu-BTC, and Zn/Cu-BTC (BTC: benzene-1,3,5-tricarboxylate) were synthesized using a microwave-assisted method. Benzene-1,3,5-tricarboxylate acts as a sacrificial template and was removed from the precursors via thermal decomposition to form CuO, ZnO, and ZnO/CuO. ZnO/CuO with a large specific surface area of 32.5 m2·g–1 is composed of porous octahedral particles of 5–10 μm in diameter. Methylene blue (MB) was utilized as the dye model for photocatalytic degradation reactions. The porous octahedral ZnO/CuO exhibits superior visible-light-driven photocatalytic degradation of MB compared with single CuO or ZnO. The kinetic model of photocatalytic degradation was proposed as 1/KL×lnC+C=−krt+1/KL×lnCe+Ce, where KL is the Langmuir equilibrium constant and Ce is the MB concentration at equilibrium. The model significantly fits the kinetic data. In addition, the acquired catalyst manifests excellent photocatalytic degradation for several other dyes including phenol red, methyl orange, and Congo red.

scholarly journals Enhanced visible light photocatalytic degradation of dyes in aqueous solution activated by HKUST-1: performance and mechanism

RSC Advances ◽  
2020 ◽  
Vol 10 (61) ◽  
pp. 37028-37034
Author(s):  
Jianyu Zhang ◽  
Chunli Su ◽  
Xianjun Xie ◽  
Peng Liu ◽  
Md. Enamul Huq
Keyword(s):  
Aqueous Solution ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Metal Organic Framework ◽  
Surface Charges ◽  
Degradation Of Dyes ◽  
Metal Organic ◽  
Visible Light Photocatalytic ◽  
Performance And Mechanism ◽  
Organic Framework

HKUST-1 is a copper-based metal–organic framework (MOF). The HKUST-1/PMS/Vis system can effectively degrade RhB and MB but accomplish poor removal of AO7 and MR, which is attributed to the repulsion between surface charges.

Microwave-assisted synthesis of monoclinic–tetragonal BiVO4 heterojunctions with enhanced visible-light-driven photocatalytic degradation of tetracycline

RSC Advances ◽  
2015 ◽  
Vol 5 (110) ◽  
pp. 90255-90264 ◽  
Author(s):  
Ming Yan ◽  
Yan Yan ◽  
Yilin Wu ◽  
Weidong Shi ◽  
Yinqun Hua
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Microwave Assisted Synthesis ◽  
Crystalline Phases ◽  
Microwave Assisted ◽  
M Phase ◽  
Visible Light Driven ◽  
T Phase ◽  
Microwave Assisted Method

In this study, BiVO4 photocatalysts of different crystalline phases (monoclinic scheelite (M-phase), tetragonal zircon (T-phase) and monoclinic–tetragonal heterojunction (M–T)) have been successfully synthesized via a facile microwave-assisted method.

scholarly journals A photosensitive metal–organic framework having a flower-like structure for effective visible light-driven photodegradation of rhodamine B

RSC Advances ◽  
2021 ◽  
Vol 11 (30) ◽  
pp. 18565-18575
Author(s):  
Lu Qin ◽  
Shicheng Zhao ◽  
Chenran Fan ◽  
Qian Ye
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Rhodamine B ◽  
Trifluoroacetic Acid ◽  
Metal Organic Framework ◽  
Control Agent ◽  
Good Effect ◽  
Visible Light Driven ◽  
Metal Organic ◽  
Organic Framework

Using the method of adding morphological control agent-trifluoroacetic acid (TFA), a flower-like porphyrin-based metal organic framework can be prepared, which shows a good effect on the photocatalytic degradation of rhodamine B.

MOF-derived yolk–shell CdS microcubes with enhanced visible-light photocatalytic activity and stability for hydrogen evolution

2017 ◽  
Vol 5 (18) ◽  
pp. 8680-8689 ◽  
Author(s):  
Yun Su ◽  
Dan Ao ◽  
Hong Liu ◽  
Yong Wang
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Metal Organic Framework ◽  
Visible Light Photocatalytic Activity ◽  
Microwave Assisted ◽  
Framework Approach ◽  
Metal Organic ◽  
Visible Light Photocatalytic ◽  
Organic Framework

Unique yolk–shell CdS microcubes with excellent photocatalytic H2-evolution activity and stability are synthesized through a facile microwave-assisted metal–organic-framework approach.

scholarly journals In situ self-assembly of zirconium metal–organic frameworks onto ultrathin carbon nitride for enhanced visible light-driven conversion of CO2 to CO

2020 ◽  
Vol 8 (12) ◽  
pp. 6034-6040 ◽  
Author(s):  
Yanan Wang ◽  
Wenlong Zhen ◽  
Yiqing Zeng ◽  
Shipeng Wan ◽  
Haiwei Guo ◽  
...  
Keyword(s):  
Visible Light ◽  
Self Assembly ◽  
Carbon Nitride ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Assembly Method ◽  
Visible Light Driven ◽  
Metal Organic ◽  
Zirconium Metal

A series of Zr-porphyrin metal–organic framework (Zr-PMOF)/ultrathin g-C3N4 (UCN) heterostructure photocatalysts, as stable and efficient catalysts for the photoreduction of CO2, have been fabricated via a facile in situ hydrothermal self-assembly method.

Efficient Visible-Light-Driven Carbon Dioxide Reduction by a Single-Atom Implanted Metal-Organic Framework

2016 ◽  
Vol 128 (46) ◽  
pp. 14522-14526 ◽  
Author(s):  
Huabin Zhang ◽  
Jing Wei ◽  
Juncai Dong ◽  
Guigao Liu ◽  
Li Shi ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Visible Light ◽  
Metal Organic Framework ◽  
Carbon Dioxide Reduction ◽  
Single Atom ◽  
Visible Light Driven ◽  
Metal Organic ◽  
Organic Framework
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