A facile controlled interfacial polymerization strategy was proposed for the synthesis of novel thin film nanocomposite (TFN) membranes enhanced nanofiltration performance. UiO-66 nanoparticles were aminated and pre-immobilized onto a polymer substrate via polydopamine (PDA) coating to achieve continuous defect-free polyamide dense layer. The mediation PDA could not only enhance structural stability TFN membranes, but also improve dispersion anchorage UiO-66-NH2, thus closely fixing position...

Development of mixed matrix membranes (MMMs) with excellent permeance and selectivity applied for gas separation has been the focus world attention. However, preparation high-quality MMMs still remains a big challenge due to lack enough interfacial interaction. Herein, ionic liquid (IL)-modified UiO-66-NH2 filler was first incorporated into microporous organic polymer material (PIM-1) prepare dense defect-free via coating modification priming technique. IL [bmim][Tf2N] not only improves...

High-quality thin-film composite (TFC) membranes with high selectivity and permeability have great significance owing to their practical applications, specifically for the accurate differentiation of monovalent divalent ions. However, trade-off effect between is still a big challenge due difficult structure adjustment selective layer. Herein, polydopamine (PDA) functionalized hydrophobic long alkane chain was first explored as functional amphiphilic interlayer synthesize high-quality TFC via...

Poly(vinyl alcohol)-sodium alginate composite hydrogels were first introduced to synthesize robust and well-intergrown zeolite imidazolate framework (ZIF)/polymer hollow fiber membranes. Through enough adsorption interaction with metal ions by chelation, sufficient nucleation sites for in situ metal-organic (MOF) preparation are provided. Using this method, we can not only easily prepare defect-free MOF membranes ignoring the complex modification process seed deposition but also structurally...

Self-assembly of robust cooperative nanostructured graphene oxide nanofiltration membranes with chirality was realized for highly stable and selective molecular separation.

Metal-organic framework (MOF)-based polydimethylsiloxane mixed matrix membranes applied for alcohol recovery with high permeability and selectivity are drawing more attention. However, the design fabrication of high-quality stable MOF-based membrane pervaporation still a big challenge. Herein, PDMS functionalized MOF-derived nanoporous carbon (P-ZNC) was first explored as compatible nanofiller to mutually blend on PVDF substrate fabricate defect-free via dip-coating thermal cross-linkng....

Adding nanomaterials such as metal–organic frameworks (MOFs) into a polyamide (PA) layer to prepare forward osmosis (FO) membranes for efficient desalination has attracted great attention. However, rational design and preparation of high-quality MOF-based PA nanocomposite still remain big challenge. In this study, polyamine membrane was fabricated via interfacial polymerization (IP) with the assistance UiO-66 interlayer enhance antifouling performances. Polydopamine (PDA) polyethyleneimine...

Recently, great improvements have been achieved in the fabrication of adsorbents.

The metal-organic framework (MOF)-based polyamide (PA) membranes applied for desalination with high permeability and selectivity are attracting more attention. However, the design fabrication of high-quality stable MOF-based PA nanocomposite reverse osmosis (RO) membrane still remain a big challenge. Herein, Fe3+-polyphenolic complex coating via interfacial coordination was first explored as an interlayer in situ assembled Fe(BTC)-based RO desalination. Although depositing on polymer...

The confined encapsulation of living cells in self-assembled fiber macrospheres with micro/nanoporous polymer shell was realized for the efficient transformation contaminants into green energy.

Graphene oxide (GO) nanosheets with unique structure have received much attention in providing opportunity for high-performance membranes separation. However, the rational design of ultrathin graphene controlled structures remains a big challenge. Here, we report methodology to synthesize dual metal-coordinated nanoporous nanofilms by tailoring well-aligned nanocrystals as building blocks on heteroatom-doped GO tunable architectures. Manipulation metal nitrate bifunctional dopants realizes...

Background: Water treatment, important for maintaining clean water among other applications, is still a challenge to improve remediation technologies eliminating pollution. Ultrafiltration, as one kind of membrane separation processes which play vital role in has been attracted extensive attention its merits high-efficiency, low-cost and energy-saving. However, some drawbacks restrict the application, including poor hydrophilicity, low permeability severe fouling. Thus, improving...

Novel high-quality thin film nanocomposite (TFN) membranes for enhanced forward osmosis (FO) were first synthesized through organic phase controlled interfacial polymerization by utilizing functional multi-walled carbon nanotubes (MWCNTs). As 3-aminopropyltriethoxysilane (APTES) grafted MWCNTs via an amidation reaction significantly promoted the dispersion in solution, MWCNTs-APTES with better compatibility effectively restricted penetration of trimesoyl chloride (TMC), thus adjusting...

In this study, novel polymers of intrinsic microporosity (PIMs)-based hollow fiber structured packings were prepared by a facile pour-coating method and successfully applied as for isopropanol (IPA)/water distillation. The design an ultrathin PIM-1 layer on the inner surface fibers effectively protected membrane from mechanical damage, especially when assembled into module. Based material properties specific polymer chain structures, hydrophobic made composite membranes to not only have...

Recently, separation and purification identified as a huge stringent challenge in industrial processes environmental protection. Being high efficient advanced technology, metal-organic framework (MOF) membranes membrane have presented tremendous potentials application of gas separation. Compared with conventional bulk MOF membranes, the dense polycrystalline ultrathin nanometre-thick layers shown outstanding performances due to minimized mass-transfer barrier. In this paper, three typical...

Aiming to explore the limitation of Hardgrove Grindability Index (HGI) and broken behavior lignite, coal samples were ground for different minutes in mill. Experiments show that grinding kinetics can describe process well. For same kind coal, kinetic parameters k m a certain particle size be regarded as constants. The particles R has power function relationship with parameter k. initial appeared selective during process. From perspective index T10 (a 1/10 size) rate, HGI poor description...

A thorough understanding of the lignin–carbohydrate complex (LCC) structure has a significant meaning in high-value utilization lignocellulose. In this work, (DHPKGC) was obtained by an addition reaction between konjac glucomannan (KGM) and quinone methides generated synthesis dehydrogenation polymers (DHPs) to simulate formation LCCs. The effect pH on prepared DHPKGC investigated. characterized Fourier Transform Infrared (FTIR), 13C-Nuclear Magnetic Resonance (13C-NMR), two-dimensional...

The preparation of traditional wood-based panels mostly uses adhesives such as urea-formaldehyde resin and phenolic resin, which not only consumes petrochemical resources but also releases formaldehyde, posing potential health risks to the human body. Lignin, a natural adhesive in plant cells, is characterized by high reactivity, it expected aid development new generation green formaldehyde-free adhesives. However, current studies lignin have revealed that while strides been made reducing...