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Themed collection Crystalline Materials for Environmental Remediation

35 items
Highlight

Covalent organic frameworks (COFs): perspectives of industrialization

In this highlight, we review the state-of-the-art development of COFs from an industrial point of view in five aspects, including their types, growth mechanisms, synthetic methods, processability and applications.

Graphical abstract: Covalent organic frameworks (COFs): perspectives of industrialization
From the themed collection: 2018 Highlight article collection
Highlight

Hierarchically structured magnesium based oxides: synthesis strategies and applications in organic pollutant remediation

In this highlight, we review the design and formation of MgO based hierarchical structures and cover some selected examples on their applications in adsorption of organic contaminants.

Graphical abstract: Hierarchically structured magnesium based oxides: synthesis strategies and applications in organic pollutant remediation
Highlight

Hollow CuxO (x = 2, 1) micro/nanostructures: synthesis, fundamental properties and applications

In this review, we comprehensively summarize the important advances in hollow CuxO micro/nanostructures, including the universal synthesis strategies, the interfacial Cu–O atomic structures as well as the intrinsic properties, and potential applications. Remarks on emerging issues and promising research directions are also discussed.

Graphical abstract: Hollow CuxO (x = 2, 1) micro/nanostructures: synthesis, fundamental properties and applications
Highlight

Experimental and theoretical investigations of the gas adsorption sites in rht-metal–organic frameworks

This highlight article reviews the experimental and theoretical studies that have been implemented to investigate the sorption sites for gases in rht-metal–organic frameworks.

Graphical abstract: Experimental and theoretical investigations of the gas adsorption sites in rht-metal–organic frameworks
Highlight

Perspectives on metal–organic frameworks with intrinsic electrocatalytic activity

This highlight article focuses on the rapidly emerging area of electrocatalytic metal–organic frameworks (MOFs) with a particular emphasis on those systems displaying intrinsic activity.

Graphical abstract: Perspectives on metal–organic frameworks with intrinsic electrocatalytic activity
Highlight

Metal–organic frameworks with Lewis acidity: synthesis, characterization, and catalytic applications

In this highlight, we review the recent development in the design and synthesis of metal–organic frameworks with Lewis acidity, the characterization techniques of Lewis acid sites, and their applications in heterogeneous catalysis.

Graphical abstract: Metal–organic frameworks with Lewis acidity: synthesis, characterization, and catalytic applications
Highlight

Overview of the strategic approaches for the solid-state recognition of hydrated anions

This review highlights the solid state recognition of hydrated anions an expanding area in the domain of supramolecular chemistry.

Graphical abstract: Overview of the strategic approaches for the solid-state recognition of hydrated anions
Communication

Efficient removal of low concentration methyl mercaptan by HKUST-1 membrane constructed on porous alumina granules

A HKUST-1 metal–organic framework membrane was constructed on porous Al2O3 granules for the first time for the removal of low concentration CH3SH.

Graphical abstract: Efficient removal of low concentration methyl mercaptan by HKUST-1 membrane constructed on porous alumina granules
Communication

Selective adsorption behaviour of carbon dioxide in OH-functionalized metal–organic framework materials

The theoretically optimal adsorption locations in hydroxyl (OH)-decorated metal–organic frameworks show that the captured CO2 molecules interact with the cis2-OH groups in an end-on mode, which shows a moderate to weak hydrogen bond.

Graphical abstract: Selective adsorption behaviour of carbon dioxide in OH-functionalized metal–organic framework materials
Open Access Communication

Supramolecular porphyrin-based metal–organic frameworks: Cu(II) naphthoate–Cu(II) tetrapyridyl porphine structures exhibiting selective CO2/N2 separation

Porphyrin-based MOFs with copper acetate or copper 1-naphthoate exhibit different pore structure and unique CO2/N2 selectivity.

Graphical abstract: Supramolecular porphyrin-based metal–organic frameworks: Cu(ii) naphthoate–Cu(ii) tetrapyridyl porphine structures exhibiting selective CO2/N2 separation
Paper

Synthesis of Bi2O3–Bi4V2O11 heterojunctions with high interface quality for enhanced visible light photocatalysis in degradation of high-concentration phenol and MO dyes

Bi2O3–Bi4V2O11 heterostructures with high interface quality were synthesized by calcining Bi2VO5.5–Bi(OHC2O4)·2H2O precursors. The Bi2O3–Bi4V2O11 heterostructure exhibits outstanding photocatalytic activity for degrading phenol and MO dyes with high concentration under visible light irradiation.

Graphical abstract: Synthesis of Bi2O3–Bi4V2O11 heterojunctions with high interface quality for enhanced visible light photocatalysis in degradation of high-concentration phenol and MO dyes
Paper

Synthesis of a novel one-dimensional BiOBr–Bi4O5Br2 heterostructure with a high quality interface and its enhanced visible-light photocatalytic activity

A novel rod-like BiOBr–Bi4O5Br2 heterostructure with a high quality interface is synthesized by calcining a BiOBr precursor in air. The BiOBr–Bi4O5Br2 heterostructure exhibits outstanding photocatalytic activity for degrading RhB dyes at high concentrations under visible/solar light irradiation.

Graphical abstract: Synthesis of a novel one-dimensional BiOBr–Bi4O5Br2 heterostructure with a high quality interface and its enhanced visible-light photocatalytic activity
Paper

A water stable microporous metal–organic framework based on rod SBUs: synthesis, structure and adsorption properties

A microporous metal–organic framework based on rod SBUs with high water stability and good selectivity for CO2 separation has been successfully synthesized.

Graphical abstract: A water stable microporous metal–organic framework based on rod SBUs: synthesis, structure and adsorption properties
Paper

A highly porous acylamide decorated MOF-505 analogue exhibiting high and selective CO2 gas uptake capability

A highly porous acylamide decorated MOF-505 analogue with optimized pores, open copper sites and acylamide groups exhibits large and selective CO2 adsorption over CH4 and N2 under ambient conditions.

Graphical abstract: A highly porous acylamide decorated MOF-505 analogue exhibiting high and selective CO2 gas uptake capability
Paper

WO3-decorated ZnO nanostructures for light-activated applications

Calyx-like ZnO nanostructures decorated by WO3 nanoparticles are investigated for NOX degradation and self-cleaning end-uses.

Graphical abstract: WO3-decorated ZnO nanostructures for light-activated applications
Paper

Syntheses of copper–iodine cluster-based frameworks for photocatalytic degradation of methylene blue

Cu–I cluster-based MOFs show a broad range of absorption in the visible region and exhibit excellent photocatalytic degradation of methylene blue dye under visible light.

Graphical abstract: Syntheses of copper–iodine cluster-based frameworks for photocatalytic degradation of methylene blue
Paper

Incorporating cuprous-halide clusters and lanthanide clusters to construct Heterometallic cluster organic frameworks with luminescence and gas adsorption properties

A series of heterometallic cluster organic frameworks based on cuprous-halide Cu4I4 clusters and lanthanide clusters have been successfully synthesized under solvothermal conditions.

Graphical abstract: Incorporating cuprous-halide clusters and lanthanide clusters to construct Heterometallic cluster organic frameworks with luminescence and gas adsorption properties
Paper

CO2 adsorption and separation in covalent organic frameworks with interlayer slipping

In layered COFs, slipping results in non-monotonous variation in CO2 adsorption and higher uptakes were found near a slipping distance of 10 Å.

Graphical abstract: CO2 adsorption and separation in covalent organic frameworks with interlayer slipping
Open Access Paper

Capture of volatile iodine by newly prepared and characterized non-porous [CuI]n-based coordination polymers

Four new non-porous copper(I) iodide coordination polymers have been synthesized and demonstrate volatile iodine capture with simultaneous fluorescence quenching.

Graphical abstract: Capture of volatile iodine by newly prepared and characterized non-porous [CuI]n-based coordination polymers
Paper

Alcohol-assisted self-assembled 3D hierarchical iron (hydr)oxide nanostructures for water treatment

Self-assembled 3D hierarchical iron (hydr)oxides are synthesized with different alcohol additives for water treatment.

Graphical abstract: Alcohol-assisted self-assembled 3D hierarchical iron (hydr)oxide nanostructures for water treatment
Paper

One-step synthesis of two Wells–Dawson arsenotungstate hybrids via M–O–M bridges for efficient adsorption and selective separation of organic pollutants

Two chain-like Dawson arsenotungstate hybrids with M–O–M and Cu–L linker have been hydrothermally synthesized, which have good electrocatalytic activity and selective adsorption properties for MB.

Graphical abstract: One-step synthesis of two Wells–Dawson arsenotungstate hybrids via M–O–M bridges for efficient adsorption and selective separation of organic pollutants
Paper

A family of microscale 2 × 2 × 2 Pocket Cubes

A family of Pocket Cubes with different chemical compositions but with the same overall mesoscale microstructures was prepared for potential applications in energy storage and water treatment.

Graphical abstract: A family of microscale 2 × 2 × 2 Pocket Cubes
Paper

Computational screening of covalent organic frameworks for the capture of radioactive iodine and methyl iodide

Large-scale computational screening results show that COFs are promising materials for the capture of radioactive iodic contaminants from nuclear wastes.

Graphical abstract: Computational screening of covalent organic frameworks for the capture of radioactive iodine and methyl iodide
Paper

Amino acid-assisted controlling the shapes of rutile, brookite for enhanced photocatalytic CO2 reduction

Rutile and brookite titania with tunable shape have been synthesized. The investigation results show that the photcatalytic CO2 reduction activity of rutile increases with increasing percentage of {111} surface and brookite with exposed {210} facets exhibit a notable photocatalytic reduction of CO2 to methanol.

Graphical abstract: Amino acid-assisted controlling the shapes of rutile, brookite for enhanced photocatalytic CO2 reduction
Paper

Luminescent sensing and photocatalytic degradation properties of an uncommon (4,5,5)-connected 3D MOF based on 3,5-di(3′,5′-dicarboxylphenyl)benzoic acid

An uncommon microporous MOF 1 used as fluorescent chemosensor for NACs and as photocatalyst.

Graphical abstract: Luminescent sensing and photocatalytic degradation properties of an uncommon (4,5,5)-connected 3D MOF based on 3,5-di(3′,5′-dicarboxylphenyl)benzoic acid
Paper

Comparing the mechanism and energetics of CO2 sorption in the SIFSIX series

Molecular simulations have yielded insights into the distinct CO2 sorption mechanisms and energetics exhibited by different members of the “SIFSIX” series.

Graphical abstract: Comparing the mechanism and energetics of CO2 sorption in the SIFSIX series
Paper

An anionic metal–organic framework constructed from a triazole-functionalized diisophthalate featuring hierarchical cages for selective adsorptive C2H2/CH4 and CO2/CH4 separation

An anionic copper-based metal–organic framework based on a custom-designed triazole-functionalized diisophthalate ligand exhibits promising potential for the separation of C2H2–CH4 and CO2–CH4 gas mixtures under ambient conditions.

Graphical abstract: An anionic metal–organic framework constructed from a triazole-functionalized diisophthalate featuring hierarchical cages for selective adsorptive C2H2/CH4 and CO2/CH4 separation
Paper

3D hierarchical golden wattle-like TiO2 microspheres: polar acetone-based solvothermal synthesis and enhanced water purification performance

A polar solvent (acetone)-based solvothermal reaction was successfully used to synthesize highly efficient 3D hierarchical golden wattle-like TiO2 microsphere structures.

Graphical abstract: 3D hierarchical golden wattle-like TiO2 microspheres: polar acetone-based solvothermal synthesis and enhanced water purification performance
Paper

A series of chiral metal–organic frameworks based on fluorene di- and tetra-carboxylates: syntheses, crystal structures and luminescence properties

Chiral MOFs built from copper and fluorene-based optically pure ligands possess various topologies and porosities and present luminescence properties.

Graphical abstract: A series of chiral metal–organic frameworks based on fluorene di- and tetra-carboxylates: syntheses, crystal structures and luminescence properties
Paper

Selective synthesis of WO3 and W18O49 nanostructures: ligand-free pH-dependent morphology-controlled self-assembly of hierarchical architectures from 1D nanostructure and sunlight-driven photocatalytic degradation

Simple inorganic routes for the selective synthesis of WO3 and W18O49 nanostructures with variable size and self-assembly are reported.

Graphical abstract: Selective synthesis of WO3 and W18O49 nanostructures: ligand-free pH-dependent morphology-controlled self-assembly of hierarchical architectures from 1D nanostructure and sunlight-driven photocatalytic degradation
Paper

Sequential amine functionalization inducing structural transition in an aldehyde-containing zeolitic imidazolate framework: application to gas separation membranes

The SIM-1 (sod) to ZIF-93 (rho) structural change through post-synthetic amine functionalization tunes the membrane performance in the separation of gas mixtures.

Graphical abstract: Sequential amine functionalization inducing structural transition in an aldehyde-containing zeolitic imidazolate framework: application to gas separation membranes
Paper

A novel methoxy-decorated metal–organic framework exhibiting high acetylene and carbon dioxide storage capacities

A new microporous metal–organic framework with optimized pore space and open metal sites has been realized, exhibiting high acetylene and carbon dioxide storage capacities.

Graphical abstract: A novel methoxy-decorated metal–organic framework exhibiting high acetylene and carbon dioxide storage capacities
Paper

General synthesis of metal oxide hollow core–shell microspheres as anode materials for lithium-ion batteries and as adsorbents for wastewater treatment

Co3O4, NiO and Mn2O3 hollow core–shell structures were prepared via a precipitation route combined with calcination.

Graphical abstract: General synthesis of metal oxide hollow core–shell microspheres as anode materials for lithium-ion batteries and as adsorbents for wastewater treatment
Paper

Fabrication of novel Z-scheme InVO4/CdS heterojunctions with efficiently enhanced visible light photocatalytic activity

Novel Z-scheme InVO4/CdS heterojunction photocatalysts have been successfully synthesized for the first time via a microwave-assisted process, followed by a mild hydrothermal method.

Graphical abstract: Fabrication of novel Z-scheme InVO4/CdS heterojunctions with efficiently enhanced visible light photocatalytic activity
Paper

One-step synthesis of ultrathin nanobelts-assembled urchin-like anatase TiO2 nanostructures for highly efficient photocatalysis

Nanostructured TiO2 materials with a controlled morphology and structure have drawn considerable attention to both fundamental research and practical applications owing to their unique characteristics.

Graphical abstract: One-step synthesis of ultrathin nanobelts-assembled urchin-like anatase TiO2 nanostructures for highly efficient photocatalysis
35 items

About this collection

The capability of the natural environment to absorb the waste products of human enterprise and industry is being put under great strain by the growth in the world’s population and economy. Environmental remediation – the decontamination of soil, air, and water – and waste stream treatment are of the highest priority. From carbon dioxide capture by MOFs and other porous materials, to the photocatalytic degradation of organic pollutants by crystalline nanomaterials, this post-publication collection showcases work that demonstrates how Crystal Engineering is being applied to solve one of humanity’s most pressing challenges.

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