Covalent Triazine Framework Nanoparticles via Size-Controllable Confinement Synthesis for Enhanced Visible-Light Photoredox Catalysis.

Angewandte Chemie
Wei HuangKai A I Zhang

Abstract

For metal-free, organic conjugated polymer-based photocatalysts, synthesis of defined nanostructures is still highly challenging. Here, we report the formation of covalent triazine framework (CTF) nanoparticles via a size-controllable confined polymerization strategy. The uniform CTF nanoparticles exhibited significantly enhanced activity in the photocatalytic formation of dibenzofurans compared to the irregular bulk material. The optoelectronic properties of the nanometer-sized CTFs could be easily tuned by copolymerizing small amounts of benzothiadiazole into the conjugated molecular network. This optimization of electronic properties led to a further increase in observed photocatalytic efficiency, resulting in total an 18-fold enhancement compared to the bulk material. Full recyclability of the heterogeneous photocatalysts as well as catalytic activity in dehalogenation, hydroxylation and benzoimidazole formation reactions demonstrated the utility of the designed materials.

References

Mar 15, 2003·Science·Alexis T Bell
Oct 2, 2003·Chemical Communications : Chem Comm·Jeff GrunesGabor A Somorjai
Jan 29, 2008·Journal of Hazardous Materials·Ruh Ullah, Joydeep Dutta
Mar 12, 2008·Angewandte Chemie·Pierre KuhnArne Thomas
Apr 5, 2008·Natural Product Reports·Mathilde Lachia, Christopher J Moody
Jan 27, 2009·Chemical Society Reviews·Robin J WhiteDuncan J Macquarrie
Feb 12, 2009·ACS Nano·Hye Seong JungGyu-Chul Yi
Jun 2, 2009·Chemical & Pharmaceutical Bulletin·Ericsson David Coy Barrera, Luis Enrique Cuca Suárez
Jun 26, 2009·Natural Product Reports·Tao ShenHong-Xiang Lou
Nov 3, 2009·Bioorganic & Medicinal Chemistry Letters·Ericsson David CoyMichael Sefkow
Apr 11, 2012·Advanced Materials·Hao Bin WuXiong Wen David Lou
Aug 27, 2014·Angewandte Chemie·Travis R BlumTehshik P Yoon
May 10, 2016·Chemical Reviews·Xiaojing WangYadong Yin
Nov 1, 2016·ACS Applied Materials & Interfaces·Shuai JiangDaniel Crespy
May 16, 2017·Chemical Communications : Chem Comm·Sophie KueckenArne Thomas
Sep 23, 2018·Chemistry : a European Journal·Can YangXinchen Wang
Dec 18, 2018·Physical Chemistry Chemical Physics : PCCP·Daniel HashemiJohn Kieffer
Feb 18, 2020·Chemistry of Materials : a Publication of the American Chemical Society·Christian B MeierAndrew I Cooper

❮ Previous
Next ❯

Citations

May 13, 2021·Nanoscale·Alexandra Mavridi-PrinteziMarco Montalti

❮ Previous
Next ❯

Methods Mentioned

BETA
transmission
scanning electron microscopy
X‐ray
NMR
electron paramagnetic resonance

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.