scholarly journals Effect of Nitrogen-Doped Carbon Dots (NCDs) on the Characteristics of NCD/MIL-53(Fe) Composite and Its Photocatalytic Performance for Methylene Blue Degradation under Visible Light

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Ngoc Tue Nguyen ◽  
Xuan Truong Nguyen ◽  
Duc-Trung Nguyen ◽  
Hong Minh Tran ◽  
Thi May Nguyen ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Carbon Dots ◽  
Environmental Remediation ◽  
Photocatalytic Performance ◽  
Removal Rate ◽  
Metal Organic Framework ◽  
Sem Images ◽  
Methylene Blue Degradation ◽  
Metal Organic ◽  
Organic Framework

Metal-organic framework composites, which are combined from metal-organic framework and advanced carbon material, have drawn great attention in many fields of application such as environmental remediation and catalysts. Within this paper, the carbon/MIL-53(Fe) composite was fabricated via an in situ synthesis, in which N-containing carbon dots (NCDs) were mixed with MOF precursors’ solutions under various ratios before going through the solvothermal stage. It was showed that the introduction of a certain amount of NCDs would affect characteristic features and improve the photocatalytic performance of final products. The optimal doping content of NCDs in NCD/MIL-53(Fe) composite was determined. SEM images showed that the M-140 appeared as hexagonal bipyramid-shaped crystals with an average size of 700 nm. Compared with pristine MIL-53(Fe), the M-140 was more visibly light-responsive, and its calculated band gap energy was approximately 2.3 eV. In addition, M-140 catalyst also displayed more excellent photocatalytic activity for Methylene Blue degradation in a pH range from 5 to 7. Under optimal conditions, MB was achieved within 60 minutes and the removal rate was nearly 100% after 5 cycles. The photocatalytic mechanism of the obtained NCD/MIL-53(Fe) composite was discussed.

Metal-organic framework Uio-66 for adsorption of methylene blue dye from aqueous solutions

2017 ◽  
Vol 14 (9) ◽  
pp. 1959-1968 ◽  
Author(s):  
A. A. Mohammadi ◽  
A. Alinejad ◽  
B. Kamarehie ◽  
S. Javan ◽  
A. Ghaderpoury ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Aqueous Solutions ◽  
Metal Organic Framework ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Metal Organic ◽  
Organic Framework

scholarly journals Photocatalytic Degradation of Methylene Blue and Methyl Orange by Y-PTC Metal-Organic Framework

2021 ◽  
Vol 7 (2) ◽  
pp. 129-141
Author(s):  
Adawiah Adawiah ◽  
Muhammad Derry Luthfi Yudhi ◽  
Agustino Zulys
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Metal Organic Framework ◽  
Light Irradiation ◽  
Bandgap Energy ◽  
Metal Organic ◽  
Organic Framework

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.

Metal Organic Framework [Cu3(BTC)2(H2O)3] for the adsorption of methylene blue from aqueous solution

2013 ◽  
Vol 52 (37-39) ◽  
pp. 7332-7338 ◽  
Author(s):  
Ling Li ◽  
Jun Cheng Li ◽  
Zhuang Rao ◽  
Gong Wu Song ◽  
Bin Hu
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Metal Organic Framework ◽  
Metal Organic ◽  
Organic Framework

Amine-functionalized metal-organic framework integrated bismuth tungstate (Bi2WO6/NH2-UiO-66) composites for the enhanced solar-driven photocatalytic degradation of ciprofloxacin molecules

2021 ◽  
Author(s):  
Rokesh Karuppannan ◽  
Sakar Mohan ◽  
Trong-On Do
Keyword(s):  
Photocatalytic Degradation ◽  
Photocatalytic Performance ◽  
Metal Organic Framework ◽  
In Situ Growth ◽  
Hydrothermal Technique ◽  
Bismuth Tungstate ◽  
Amine Functionalized ◽  
Metal Organic ◽  
Organic Framework

Amine-functionalized metal-organic framework integrated bismuth tungstate (Bi2WO6/NH2-UiO-66) nanocomposite has been developed by in-situ growth of NH2-UiO-66 on Bi2WO6 micro/nanoflower via hydrothermal technique and studied their photocatalytic performance towards ciprofloxacin degradation...

A novel sustainable metal organic framework as the ultimate aqueous phase sensor for natural hazards: detection of nitrobenzene and F− at the ppb level and rapid and selective adsorption of methylene blue

CrystEngComm ◽  
2020 ◽  
Vol 22 (22) ◽  
pp. 3891-3909 ◽  
Author(s):  
Mantasha I. ◽  
M. Shahid ◽  
Hatem A. M. Saleh ◽  
Khalil M. A. Qasem ◽  
Musheer Ahmad
Keyword(s):  
Methylene Blue ◽  
Natural Hazards ◽  
Aqueous Phase ◽  
Selective Adsorption ◽  
Metal Organic Framework ◽  
Sensing Properties ◽  
Metal Organic ◽  
Phase Sensor ◽  
Organic Framework

A novel metal organic framework (MOF) exhibits good aqueous phase sensing properties towards nitrobenzene and fluoride anions and selective adsorption/separation ability for methylene blue.

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