scholarly journals How Organic Substances Promote the Chemical Oxidative Degradation of Pollutants: A Mini Review

2021 ◽  
Vol 13 (19) ◽  
pp. 10993
Author(s):  
Zhewei Hu ◽  
Jiaqi Shi ◽  
Hao Yang ◽  
Jianbo Huang ◽  
Feng Sheng
Keyword(s):  
Transition Metals ◽  
Metal Organic Framework ◽  
Oxidative Degradation ◽  
Chemical Oxidation ◽  
Organic Substances ◽  
Oxidation Reactions ◽  
Action Mechanisms ◽  
Metal Organic ◽  
Oxidation Technology ◽  
Oxidation Degradation

The promotion of pollutant oxidation degradation efficiency by adding organic catalysts has obtained widespread attention in recent years. Studies have shown that organic substances promote the process of traditional oxidation reactions by accelerating the redox cycle of transition metals, chelating transition metals, activating oxidants directly to generate reactive oxygen species such as hydroxyl and sulfate radical, or changing the electron distribution of the target pollutant. Based on the promotion of typical organic functional groups on the chemical oxidative process, a metal-organic framework has been developed and applied in the field of chemical catalytic oxidation. This manuscript reviewed the types, relative merits, and action mechanisms of common organics which promoted oxidation reactions so as to deepen the understanding of chemical oxidation mechanisms and enhance the practical application of oxidation technology.

A new two-fold interpenetrating two-dimensional copper(II) coordination polymer constructed from 4,4′-bis(2-methylimidazol-1-yl)diphenyl ether

2020 ◽  
Vol 75 (4) ◽  
pp. 347-352
Author(s):  
Liang Liang ◽  
Chen-Dong Pan ◽  
Jun Wang
Keyword(s):  
Diphenyl Ether ◽  
Metal Organic Framework ◽  
Oxidative Degradation ◽  
Photocatalytic Property ◽  
Isophthalic Acid ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
X Ray ◽  
Metal Organic ◽  
Degradation Of Methyl Orange

AbstractA new Cu(II) metal-organic framework, [Cu(BMIOPE)(Br-BDC)]n (1) [Br-H2BDC = 5-bromo-isophthalic acid, BMIOPE = 4,4′-bis(2-methylimidazol-1-yl)diphenyl ether], has been hydrothermally synthesized and characterized through IR spectroscopy, elemental and thermal analysis, and single-crystal X-ray diffraction. Complex 1 possesses a unique two-fold interpenetrating two-dimensional framework with sql topology. The photocatalytic property of complex 1 for oxidative degradation of methyl orange and methylene blue with hydrogen peroxide was examined under UV irradiation.

scholarly journals Air oxidation of sulfur mustard gas simulants using a pyrene-based metal–organic framework photocatalyst

2019 ◽  
Vol 10 ◽  
pp. 2422-2427 ◽  
Author(s):  
Ghada Ayoub ◽  
Mihails Arhangelskis ◽  
Xuan Zhang ◽  
Florencia Son ◽  
Timur Islamoglu ◽  
...  
Keyword(s):  
Sulfur Mustard ◽  
Metal Organic Framework ◽  
Oxidative Degradation ◽  
Chemical Warfare Agents ◽  
Mustard Gas ◽  
Air Oxidation ◽  
Substitution Pattern ◽  
Warfare Agents ◽  
Metal Organic ◽  
Organic Framework

We demonstrate a microporous metal–organic framework NU-400 based on a 2,7-disubstituted pyrene linker as a highly efficient photosensitizer for generating singlet oxygen and subsequent oxidative degradation of chemical warfare agents (CWAs). The high activity of NU-400 permits photocatalytic conversion of the 2-chloroethyl ethyl sulfide (CEES) mustard gas simulant into a benign sulfoxide derivative, in air, with less than 15 minutes’ half-life. This is a considerable improvement to NU-1000, based on a 1,3,6,8-tetrasubstituted pyrene unit, demonstrating how variation of the substitution pattern of a metal–organic framework linker permits modification of its photoactive behavior.

scholarly journals Harvesting the photoexcited holes on a photocatalytic proton reduction metal–organic framework

2017 ◽  
Vol 201 ◽  
pp. 71-86 ◽  
Author(s):  
J. G. Santaclara ◽  
A. I. Olivos-Suarez ◽  
I. du Fossé ◽  
A. Houtepen ◽  
J. Hunger ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Metal Organic Framework ◽  
Porous Titanium ◽  
Light Illumination ◽  
Oxidation Reactions ◽  
Proton Reduction ◽  
Visible Light Illumination ◽  
Metal Organic ◽  
Oxygen Evolving ◽  
Organic Framework

The highly porous titanium based metal–organic framework NH2-MIL-125(Ti) has recently attracted significant attention in the field of photocatalysis as a promising material for H+ reduction. This work reveals charge transfer upon visible light illumination from this MOF to two different charge acceptors, as an alternative to sacrificial electron donors. Charge transfer is demonstrated through a combined spectroscopic study between this MOF and: (1) 2-(1H-pyrazol-3-yl)phenol, a molecule that functionally mimics the tyrosine–histidine pair, responsible for shuttling the holes to the oxygen evolving centre in natural photosynthesis, and (2) TEMPO, a well known and stable radical. Charge transfer of the holes from the MOF to these occluded molecules takes place on the picosecond time scale. This work suggests that, by coupling a stable and recyclable charge acceptor to the photogenerated holes, the charges can be utilised for oxidation reactions and, thus, link the reduction to the oxidation reactions in water splitting.

A new two-dimensional metal–organic framework with high spin-filtering efficiency

2015 ◽  
Vol 17 (26) ◽  
pp. 17437-17444 ◽  
Author(s):  
Bikash Mandal ◽  
Pranab Sarkar
Keyword(s):  
Transition Metals ◽  
High Spin ◽  
Metal Organic Framework ◽  
Two Dimensional ◽  
Filtering Efficiency ◽  
Metal Organic ◽  
Spin Filtering ◽  
Organic Framework

A new metal–organic framework, consisting of substituted naphthalene molecules and transition metals, is proposed with good spin filtering properties.

scholarly journals Quo vadis niobium? Divergent coordination behavior of early-transition metals towards MOF-5

2019 ◽  
Vol 10 (23) ◽  
pp. 5906-5910 ◽  
Author(s):  
Maciej D. Korzyński ◽  
Luca Braglia ◽  
Elisa Borfecchia ◽  
Kirill A. Lomachenko ◽  
Amgalanbaatar Baldansuren ◽  
...  
Keyword(s):  
Transition Metals ◽  
Cation Exchange ◽  
Metal Organic Framework ◽  
Coordination Behavior ◽  
Metal Organic ◽  
Quo Vadis ◽  
Early Transition ◽  
Organic Framework

Despite its prevalence, cation exchange is not the only immobilization pathway for foreign cations in the epochal MOF-5 metal–organic framework.

Ultrathin nanosheet-assembled [Ni3(OH)2(PTA)2(H2O)4]·2H2O hierarchical flowers for high-performance electrocatalysis of glucose oxidation reactions

Nanoscale ◽  
2018 ◽  
Vol 10 (27) ◽  
pp. 13270-13276 ◽  
Author(s):  
Shasha Zheng ◽  
Bing Li ◽  
Yijian Tang ◽  
Qing Li ◽  
Huaiguo Xue ◽  
...  
Keyword(s):  
High Performance ◽  
Glucose Oxidation ◽  
Metal Organic Framework ◽  
Oxidation Reactions ◽  
Metal Organic ◽  
Ultrathin Nanosheet ◽  
Organic Framework

Ultrathin nanosheet-assembled metal–organic framework hierarchical flowers have been regarded as very promising electrocatalysts for glucose oxidation reactions.

Air Oxidation of Sulfur Mustard Gas Simulant Using a Pyrene-Based Metal-Organic Framework Photocatalyst

2019 ◽  
Author(s):  
Ghada Ayoub ◽  
Mihails Arhangelskis ◽  
Xuan Zhang ◽  
Florencia Son ◽  
Timur Islamoglu ◽  
...  
Keyword(s):  
Sulfur Mustard ◽  
Metal Organic Framework ◽  
Oxidative Degradation ◽  
Chemical Warfare Agents ◽  
Mustard Gas ◽  
Air Oxidation ◽  
Substitution Pattern ◽  
Warfare Agents ◽  
Metal Organic ◽  
Organic Framework

We demonstrate a microporous metal-organic framework NU-400 based on a 2,7-disubstituted pyrene linker as a highly efficient photosensitizer for generating singlet oxygen and subsequent oxidative degradation of chemical warfare agents (CWAs). The high activity of NU-400 permits photocatalytic conversion of the 2-chloroethyl ethyl sulfide (CEES) mustard gas simulant into a benign sulfoxide derivative, in air, with less than 15 minutes half-life. This is a considerable improvement to NU-1000 based on a 1,3,6,8-tetrasubstituted pyrene unit, demonstrating how variation of the substitution pattern of a metal-organic framework linker permits modification of its photoactive behavior.

scholarly journals An insight into metal organic framework derived N-doped graphene for the oxidative degradation of persistent contaminants: formation mechanism and generation of singlet oxygen from peroxymonosulfate

2017 ◽  
Vol 4 (2) ◽  
pp. 315-324 ◽  
Author(s):  
Ping Liang ◽  
Chi Zhang ◽  
Xiaoguang Duan ◽  
Hongqi Sun ◽  
Shaomin Liu ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Formation Mechanism ◽  
Metal Organic Framework ◽  
Oxidative Degradation ◽  
Doped Graphene ◽  
Metal Organic ◽  
Insight Into ◽  
Persistent Contaminants ◽  
Organic Framework

Singlet oxygen produced during peroxymonosulfate activation by N-graphene dominated the pollutants degradation.

scholarly journals A Cobalt(II)-containing Metal-Organic Framework Showing Catalytic Activity in Oxidation Reactions

2008 ◽  
Vol 634 (12-13) ◽  
pp. 2411-2417 ◽  
Author(s):  
Ying Lu ◽  
Markus Tonigold ◽  
Björn Bredenkötter ◽  
Dirk Volkmer ◽  
Julia Hitzbleck ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Metal Organic Framework ◽  
Oxidation Reactions ◽  
Metal Organic ◽  
Organic Framework
Sign in / Sign up

Export Citation Format

Share Document