A hydrophobic adsorbent based on hierarchical porous polymers derived from morphologies of a biomineral

Abstract

Functional biogenic hierarchical morphologies are applied to a hydrophobic adsorbent consisting of polystyrene through the morphology replication technique.

Three-Arm Branched Microporous Organic Nanotube Networks

“…The result showed that the adsorption equilibrium was mainly achieved and adsorption efficiency can reach to 88% for R6G and 40% for p ‐cresol after 30 min. (Figure ) Compared to other reported porous polymers under the same conditions, the adsorbed ability of three‐arm branched MONNs for R6G and p ‐cresol lies toward the upper end, which is mainly ascribed to their high surface areas and better mass transport of three‐arm branched tubular network unit. In addition, the negatively charged carboxylate placed on the channels of three‐arm branched tubular network units after the PLA etching also played an important role in capturing positively charged R6G based on specific electrostatic interactions …”

Porous organic nanofiber polymers as superfast adsorbents for capturing pharmaceutical contaminants from water

“…Moreover, it has been reported that surface hydroxyl (-OH) functional groups could enhance the interaction of targeted organics via hydrogen bonding. [37][38][39] However, to the best of our knowledge, hydroxyl-based POPs have not yet been investigated for the removal of a wide range of PPCPs from water.…”

Infiltration of biomineral templates for nanostructured polypyrrole

“…12,13 Later, Imai et al used the CaCO 3 structure of biominerals as templates for polymerisations. [14][15][16][17] Generally templates are used oen in polymerisations, as it is not easy to control the morphology of an organic polymer since they are oen poorly soluble or difficult to process. 12,15,18 A biomineral as a template allows to transfer the hierarchical structure of biominerals, consisting of the nano-and macrostructure, to polymer materials.…”

“…[14][15][16][17] Generally templates are used oen in polymerisations, as it is not easy to control the morphology of an organic polymer since they are oen poorly soluble or difficult to process. 12,15,18 A biomineral as a template allows to transfer the hierarchical structure of biominerals, consisting of the nano-and macrostructure, to polymer materials. In general the morphology has a huge impact on the properties of a material, as in the example of biominerals.…”

“…In general the morphology has a huge impact on the properties of a material, as in the example of biominerals. 15,19 If the hierarchical structure with its nanostructure is transferred to a conductive polymer, it could lead to interesting electrochemical properties. 20,21 Nanostructured conductive polymers show advantages such as a high electrical conductivity, 22,23 a high surface area 24,25 or a short distance for the transport of ions.…”