Organization of Zeolite Microcrystals for Production of Functional Materials

Abstract

This Account summarizes various methods of organizing zeolite microcrystals into two-dimensional functional entities such as monolayers, multilayers, and patterned monolayers on various substrates and three-dimensional functional entities such as microballs and protein-zeolite composite fibrils. In the case of monolayer assembly, various types of linkages and substrates, factors that govern the rate, degree of coverage, degree of close packing, degree of uniform orientation, and average binding strength between each crystal and the substrate are described. The current and future applications of the organized products are also discussed.

Enhancement of the Mechanical Properties of Nanoparticulate Thin Coatings via Surface Modification and Cross‐Linking Additive

“…Other groups focused on improving coating properties via bonding particles on a substrate [18][19][20]. These procedures led to a successful covalent linking between particles or particles and the substrate surface.…”

Layer‐by‐Layer Approach to Superhydrophobic Zeolite Antireflective Coatings

“…[10,11] Orderly arrayed channels, high pore volume and highly crystalline walls in their structures make them suitable for potential applications in the fields of low-k materials, [12,13] catalysis, [14,15] separation and adsorption, [16][17][18] and optics. [19][20][21] However, very limited works were reported on the synthesis of super hydrophilic AR zeolite coatings.…”

Phase-Segregation-Induced Self-Assembly of Anisotropic MFI Microbuilding Blocks into Compact and Highly b-Oriented Monolayers

“…5,6 The 2D assembly of micrometersized building blocks, however, is still not explored to a large extent, although the ability to organize them will make materials chemistry flourish. 7 Zeolite particles are ideal model microbuilding blocks for 2D assembly because of not only their ease in fabrication but also their inherent highly regular sub-nanometer-sized pore architectures, which may bring new features when being assembled into ordered 2D layers. In the recent years, great progress has been made in fabricating highly regular zeolite layers (unique orientation and high monolayer coverage) and their promising applications as high-performance molecular sieve membranes, [8][9][10][11][12][13][14][15] anisotropic photoluminescence generators, 16 light-harvesting systems, 17 optical devices, [18][19][20] selective sensors [21][22][23] etc.…”

“…28 Yoon et al developed a versatile method for depositing oriented zeolite monolayers by assembling zeolite microcrystals using organic Langmuir ARTICLE linkers. 7 A wide variety of well-known chemical principles, such as covalent linkage, 29 ionic bonding, 30 and hydrogen bonding, 31 could be exploited in this method. Moreover, on the basis of this viable seed-deposition method, a defect-free and highly boriented MFI membrane was successfully fabricated in Tsapatsis's group and exhibited excellent molecular-sieving properties in the separation of p-/o-xylene vapors.…”