Kinetics and mechanism of enhanced photocatalytic activity under visible light irradiation using Cr2O3/Fe2O3 nanostructure derived from bimetallic metal organic framework

2019 ◽  
Vol 7 (3) ◽  
pp. 103092 ◽  
Author(s):  
Hadi Salari
2021 ◽  
Vol 7 (2) ◽  
pp. 129-141
Author(s):  
Adawiah Adawiah ◽  
Muhammad Derry Luthfi Yudhi ◽  
Agustino Zulys

The yttrium based metal-organic framework (MOF) Y-PTC was synthesized by the solvothermal method using perylene as the linker and yttrium as metal ion. This study aims to assess the photocatalytic activity of yttrium-perylenetetracarboxylate (Y-PTC) metal-organic framework (MOF) toward methylene blue and methyl orange under visible light irradiation. The results of the FTIR analysis showed that Y-PTC MOF had a different structure and composition from its precursor (Na4PTC). The Y-PTC MOF has a bandgap energy value of 2.20 eV with a surface area of 47.7487 m2/g. The SEM-EDS analysis showed an elemental composition of yttrium, carbon, and oxygen, were 6.9%, 72.1% and 20.7%, respectively. Furthermore, Y-PTC MOF was able to adsorb dyes at the optimum by 78.10% and 35.57% toward methylene blue (MB) and methyl orange (MO) at the dispersion period of 60 mins. Y-PTC MOF exhibited photocatalytic activity towards the degradation of methylene blue and methyl orange under visible light irradiation. The addition of H2O2 inhibited Y-PTC photocatalytic activity towards MO degradation from 50.89% to 26.38%. In contrast to MO, the addition of H2O2 had a positive effect on MB, which increased the degradation from 87.56% to 91.65%. Therefore, Y-PTC MOF possessed the potential of a photocatalyst material in dyes degradation under visible light irradiation.


2018 ◽  
Vol 47 (27) ◽  
pp. 9103-9113 ◽  
Author(s):  
Tian-Rui Zheng ◽  
Lin-Lu Qian ◽  
Min Li ◽  
Zhi-Xiang Wang ◽  
Ke Li ◽  
...  

A bifunctional cationic MOF showed fast and highly efficient Cr2O72− and CrO42− trapping, and highly efficient photocatalytic activity.


RSC Advances ◽  
2020 ◽  
Vol 10 (25) ◽  
pp. 14550-14555 ◽  
Author(s):  
Wenling Zhao ◽  
Chengcheng Liu

Cu–Cu2O@TiO2 heterojunction photocatalyst derived from a metal–organic framework shows high photocatalytic activity for dye degradation under visible light irradiation.


2018 ◽  
Vol 6 (37) ◽  
pp. 18031-18035 ◽  
Author(s):  
Nasrin Sadeghi ◽  
Shahram Sharifnia ◽  
Trong-On Do

A photocatalyst consisting of a porphyrin-based metal–organic framework (Al/PMOF) and amine-functionalized graphene (NH2-rGO) has been designed to reduce CO2.


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