A metal-free covalent organic framework as photocatalyst for CO2 reduction at low CO2 concentration in gas-solid system

2021 ◽  
Author(s):  
Jin-Xian Cui ◽  
Lu-Jie Wang ◽  
Feng Liu ◽  
Bo Meng ◽  
Zi-Yan Zhou ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Co2 Reduction ◽  
Co2 Concentration ◽  
Light Irradiation ◽  
Metal Free ◽  
Covalent Organic Framework ◽  
Low Co2 ◽  
Solid System ◽  
Organic Framework

A β-ketoenamine-based COF is used as photocatalyst to convert CO2 and H2O into CO and O2 under visible-light irradiation without additional photosensitizers and sacrificial agents in gas-solid system. When CO2...

Covalent organic frameworks as metal-free heterogeneous photocatalysts for organic transformations

2017 ◽  
Vol 5 (44) ◽  
pp. 22933-22938 ◽  
Author(s):  
Yongfeng Zhi ◽  
Ziping Li ◽  
Xiao Feng ◽  
Hong Xia ◽  
Yumin Zhang ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Two Dimensional ◽  
Covalent Organic Frameworks ◽  
Organic Transformations ◽  
Metal Free ◽  
Covalent Organic Framework ◽  
Photocatalytic Performances ◽  
Organic Framework

A robust two-dimensional covalent organic framework (COF-JLU5), which exhibits excellent heterogeneous photocatalytic performances for oxidative C–H functionalizations under visible-light irradiation using O2as a green oxygen source, is reported.

Highly dispersed Ru nanoparticles on a bipyridine-linked covalent organic framework for efficient photocatalytic CO2 reduction

2021 ◽  
Author(s):  
Ziling Liu ◽  
Yaqi Huang ◽  
Shuqing Chang ◽  
Xiaoli Zhu ◽  
Yanghe Fu ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Co2 Reduction ◽  
Light Irradiation ◽  
Covalent Organic Framework ◽  
Ru Nanoparticles ◽  
Highly Dispersed ◽  
Organic Framework

Highly dispersed Ru nanoparticles are confined in a photosensitizing bipyridine-linked covalent organic framework to construct Ru@TpBpy composites, exhibiting significantly enhanced activities for CO2 reduction under visible-light irradiation.

scholarly journals Photocatalytic CO2 reduction by a mixed metal (Zr/Ti), mixed ligand metal–organic framework under visible light irradiation

2015 ◽  
Vol 51 (26) ◽  
pp. 5735-5738 ◽  
Author(s):  
Yeob Lee ◽  
Sangjun Kim ◽  
Jeung Ku Kang ◽  
Seth M. Cohen
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Metal Organic Framework ◽  
Co2 Reduction ◽  
Mixed Ligand ◽  
Light Irradiation ◽  
Mixed Metal ◽  
Metal Organic ◽  
Organic Framework

Postsynthetic exchange (PSE) of Ti(iv) into a Zr(iv)-based MOF enabled photocatalytic CO2 reduction to HCOOH under visible light irradiation with the aid of BNAH and TEOA.

scholarly journals Photocatalytic CO2 reduction using visible light by metal-monocatecholato species in a metal–organic framework

2015 ◽  
Vol 51 (92) ◽  
pp. 16549-16552 ◽  
Author(s):  
Yeob Lee ◽  
Sangjun Kim ◽  
Honghan Fei ◽  
Jeung Ku Kang ◽  
Seth M. Cohen
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Co2 Reduction ◽  
Light Irradiation ◽  
Metal Organic ◽  
Organic Framework

Metal–organic frameworks (MOFs) with isolated metal-monocatecholato groups have been synthesized via postsynthetic exchange (PSE) for CO2 reduction photocatalyst under visible light irradiation in the presence of 1-benzyl-1,4-dihydronicotinamide and triethanolamine.

Donor–acceptor covalent organic framework/g-C3N4 hybrids for efficient visible light photocatalytic H2 production

2021 ◽  
Author(s):  
Chenxiang Lin ◽  
Chaozheng Han ◽  
Lei Gong ◽  
Xin Chen ◽  
Jinxia Deng ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
H2 Production ◽  
Light Irradiation ◽  
Evolution Rate ◽  
Covalent Organic Framework ◽  
Donor Acceptor ◽  
Visible Light Photocatalytic ◽  
Organic Framework

A donor–acceptor type covalent organic framework (COF) was used to construct TBTA/g-C3N4 hybrids for photocatalytic H2 evolution. Under visible light irradiation, the hybrids exhibited an optimized H2 evolution rate of 11.73 mmol g−1 h−1 without Pt.

Linking Melem with Conjugated Schiff-Base Bond to Boost Photocatalytic Efficiency of Carbon Nitride for Overall Water Splitting

Nanoscale ◽  
2021 ◽  
Author(s):  
Hu Liu ◽  
Mengqi Shen ◽  
Peng Zhou ◽  
Zhi Guo ◽  
Xinyang Liu ◽  
...  
Keyword(s):  
Schiff Base ◽  
Visible Light ◽  
Water Splitting ◽  
Visible Light Irradiation ◽  
Carbon Nitride ◽  
Light Irradiation ◽  
Graphitic Carbon Nitride ◽  
Photocatalytic Efficiency ◽  
Metal Free ◽  
Overall Water Splitting

Developing an efficient single component photocatalyst for overall water splitting under visible-light irradiation is extremely challenging. Herein, we report a metal-free graphitic carbon nitride (g-CxN4)-based nanosheet photocatalyst (x = 3.2,...

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.

Noble-metal-free Ni3N/g-C3N4 photocatalysts with enhanced hydrogen production under visible light irradiation

2018 ◽  
Vol 47 (35) ◽  
pp. 12188-12196 ◽  
Author(s):  
Lu Chen ◽  
Huijuan Huang ◽  
Yuanhui Zheng ◽  
Wenhao Sun ◽  
Yi Zhao ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Noble Metal ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Photocatalytic Hydrogen Evolution ◽  
Metal Free

Noble-metal-free Ni3N/g-C3N4 heterojunctions that show high photocatalytic hydrogen evolution activity comparable to platinized g-C3N4 were successfully synthesized.

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