The coming of age of water channels for separation membranes: from biological to biomimetic to synthetic DOI Creative Commons
Yu Jie Lim, Kunli Goh, Rong Wang

et al.

Chemical Society Reviews, Journal Year: 2022, Volume and Issue: 51(11), P. 4537 - 4582

Published: Jan. 1, 2022

Water channels are one of the key pillars driving development next-generation desalination and water treatment membranes. Over past two decades, rise nanotechnology has brought together an abundance multifunctional nanochannels that poised to reinvent separation membranes with performances exceeding those state-of-the-art polymeric within water-energy nexus. Today, these can be broadly categorized into biological, biomimetic synthetic, owing their different natures, physicochemical properties methods for membrane nanoarchitectonics. Furthermore, against backdrop mechanisms, types nanochannel exhibit unique merits limitations, which determine usability suitability designs. Herein, this review outlines progress a comprehensive amount nanochannels, include aquaporins, pillar[5]arenes, I-quartets, nanotubes porins, graphene-based materials, metal- covalent-organic frameworks, porous organic cages, MoS2, MXenes, offering comparative glimpse where potential lies. First, we map out background by looking evolution over years, before discussing latest developments focusing on intrinsic transport from chemistry standpoint. Next, put perspective fabrication nanoarchitecture high-performance nanochannel-enabled membranes, especially distinct differences each type how they leveraged unlock as-promised high in current mainstream Lastly, critically evaluate recent findings provide holistic qualitative assessment respect attributes most strongly valued engineering, upcoming challenges share our perspectives researchers pathing future directions coming age channels.

Language: Английский

Confining and Highly Dispersing Single Polyoxometalate Clusters in Covalent Organic Frameworks by Covalent Linkages for CO2 Photoreduction DOI
Meng Lu, Mi Zhang, Jiang Liu

et al.

Journal of the American Chemical Society, Journal Year: 2022, Volume and Issue: 144(4), P. 1861 - 1871

Published: Jan. 20, 2022

Single clusters have attracted extensive research interest in the field of catalysis. However, achieving a highly uniform dispersion single-cluster catalyst is challenging. In this work, for first time, we present versatile strategy uniformly dispersed polyoxometalates (POMs) covalent organic frameworks (COFs) through confining POM cluster into regular nanopores COF by linkage. These COF-POM composites combine properties light absorption, electron transfer, and suitable catalytic active sites; as result, they exhibit outstanding activity artificial photosynthesis: that is, CO2 photoreduction with H2O donor. Among them, TCOF-MnMo6 achieved highest CO yield (37.25 μmol g-1 h-1 ca. 100% selectivity) gas-solid reaction system. Furthermore, mechanism study based on density functional theory (DFT) calculations demonstrated photoinduced transfer (PET) process occurs from to POM, then reduction oxidation occur COF, respectively. This work developed method single which also shows potential using materials photocatalysis.

Language: Английский

Citations

337

Tuning excited state electronic structure and charge transport in covalent organic frameworks for enhanced photocatalytic performance DOI Creative Commons
Zhongshan Chen, Jingyi Wang, Mengjie Hao

et al.

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Feb. 27, 2023

Covalent organic frameworks (COFs) represent an emerging class of photocatalysts. However, their complicated structures lead to indeterminacy about photocatalytic active sites and reaction mechanisms. Herein, we use reticular chemistry construct a family isoreticular crystalline hydrazide-based COF photocatalysts, with the optoelectronic properties local pore characteristics COFs modulated using different linkers. The excited state electronic distribution transport pathways in are probed host experimental methods theoretical calculations at molecular level. One our developed (denoted as COF-4) exhibits remarkable electron utilization efficiency charge transfer properties, achieving record-high uranium extraction performance ~6.84 mg/g/day natural seawater among all techniques reported so far. This study brings new understanding operation COF-based guiding design improved photocatalysts for many applications.

Language: Английский

Citations

293

Three-Component Donor−π–Acceptor Covalent–Organic Frameworks for Boosting Photocatalytic Hydrogen Evolution DOI
Ziping Li, Tianqi Deng, Si Ma

et al.

Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 145(15), P. 8364 - 8374

Published: March 14, 2023

Two-dimensional covalent-organic frameworks (2D COFs) have recently emerged as great prospects for their applications new photocatalytic platforms in solar-to-hydrogen conversion; nevertheless, inefficient solar energy capture and fast charge recombination hinder the improvement of hydrogen production performance. Herein, two photoactive three-component donor-π-acceptor (TCDA) materials were constructed using a multicomponent synthesis strategy by introducing electron-deficient triazine electron-rich benzotrithiophene moieties into through sp2 carbon imine linkages, respectively. Compared with two-component COFs, novel TCDA-COFs are more convenient regulating inherent photophysical properties, thereby realizing outstanding activity evolution from water. Remarkably, first carbon-linked TCDA-COF displays an impressive rate 70.8 ± 1.9 mmol g-1 h-1 excellent reusability presence 1 wt % Pt under visible-light illumination (420-780 nm). Utilizing combination diversified spectroscopy theoretical prediction, we show that full π-conjugated linkage not only effectively broadens harvesting COFs but also enhances transfer separation efficiency.

Language: Английский

Citations

259

Metalated covalent organic frameworks: from synthetic strategies to diverse applications DOI
Qun Guan, Lele Zhou, Yu‐Bin Dong

et al.

Chemical Society Reviews, Journal Year: 2022, Volume and Issue: 51(15), P. 6307 - 6416

Published: Jan. 1, 2022

This review highlights the recent advances of metalated covalent organic frameworks, including synthetic strategies and applications, discusses current challenges future directions.

Language: Английский

Citations

221

Tuning Local Charge Distribution in Multicomponent Covalent Organic Frameworks for Dramatically Enhanced Photocatalytic Uranium Extraction DOI
Hui Yang, Mengjie Hao,

Yinghui Xie

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(30)

Published: April 29, 2023

Optimizing the electronic structure of covalent organic framework (COF) photocatalysts is essential for maximizing photocatalytic activity. Herein, we report an isoreticular family multivariate COFs containing chromenoquinoline rings in COF and electron-donating or withdrawing groups pores. Intramolecular donor-acceptor (D-A) interactions allowed tuning local charge distributions carrier separation under visible light irradiation, resulting enhanced performance. By optimizing optoelectronic properties COFs, a uranium extraction efficiency 8.02 mg/g/day was achieved using nitro-functionalized multicomponent natural seawater, exceeding performance all reported to date. Results demonstrate effective design strategy towards high-activity with intramolecular D-A structures not easily accessible traditional synthetic approaches.

Language: Английский

Citations

201

Imine and imine-derived linkages in two-dimensional covalent organic frameworks DOI
Cheng Qian, Lili Feng, Wei Liang Teo

et al.

Nature Reviews Chemistry, Journal Year: 2022, Volume and Issue: 6(12), P. 881 - 898

Published: Nov. 11, 2022

Language: Английский

Citations

200

Covalent Organic Framework Based Functional Materials: Important Catalysts for Efficient CO2Utilization DOI
Meng Lu, Mi Zhang, Jiang Liu

et al.

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(15)

Published: Jan. 21, 2022

As hot topics in the chemical conversion of CO2 , photo-/electrocatalytic reduction and use as a supporter for energy storage have shown great potential utilization . However, many obstacles still exist on road to realizing highly efficient conversion, such inefficient uptake/activation mass transport catalysts. Covalent organic frameworks (COFs), kind porous material, been widely explored catalysts owing their unique features. In particular, COF-based functional materials containing diverse active sites (such single metal sites, nanoparticles, oxides) offer storage. This Minireview discusses recent breakthroughs basic knowledge, mechanisms, pathways strategies that addition, challenges prospects are also introduced.

Language: Английский

Citations

192

Scalable Synthesis of Ultrathin Polyimide Covalent Organic Framework Nanosheets for High-Performance Lithium–Sulfur Batteries DOI
Haiyan Duan, Ke Li, Mo Xie

et al.

Journal of the American Chemical Society, Journal Year: 2021, Volume and Issue: 143(46), P. 19446 - 19453

Published: Nov. 3, 2021

Development of new porous materials as hosts to suppress the dissolution and shuttle lithium polysulfides is beneficial for constructing highly efficient lithium-sulfur batteries (LSBs). Although 2D covalent organic frameworks (COFs) host exhibit promising potential LSBs, their performance still not satisfactory. Herein, we develop polyimide COFs (PI-COF) with a well-defined lamellar structure, which can be exfoliated into ultrathin (∼1.2 nm) nanosheets (PI-CONs) large size (∼6 μm) quantity (40 mg/batch). Explored sulfur PI-COF PI-CONs deliver high capacities (1330 1205 mA h g-1 at 0.1 C, respectively), excellent rate capabilities (620 503 4 superior cycling stability (96% capacity retention 0.2 C PI-CONs) by virtue synergy robust conjugated strong oxygen-lithium interactions, surpassing vast majority organic/polymeric battery cathodes ever reported. Our finding demonstrates that COF carbonyl groups could LSBs electrochemical performance.

Language: Английский

Citations

175

Linkage-engineered donor–acceptor covalent organic frameworks for optimal photosynthesis of hydrogen peroxide from water and air DOI
Ruoyang Liu, Yongzhi Chen, Hongde Yu

et al.

Nature Catalysis, Journal Year: 2024, Volume and Issue: 7(2), P. 195 - 206

Published: Feb. 13, 2024

Language: Английский

Citations

168

Conjugated microporous polymers for energy storage: Recent progress and challenges DOI
Kamran Amin, Nawal Ashraf, Lijuan Mao

et al.

Nano Energy, Journal Year: 2021, Volume and Issue: 85, P. 105958 - 105958

Published: March 7, 2021

Language: Английский

Citations

164