Intermatrix Synthesis as a rapid, inexpensive and reproducible methodology for the in situ functionalization of nanostructured surfaces with quantum dots

Abstract

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Metal nanoparticle–carbon nanotubes hybrid catalysts immobilized in a polymeric membrane for the reduction of 4-nitrophenol

“…In spite of the many advantages presented in the heterogeneous catalysis with the NPs-CNTs, an important challenge is the recovery of the supported catalyst from liquid reaction media to reduce the environmental impact and to increase its reuse without a loss in reactivity. To overcome these issues, in this work, first MWCNTs were oxidized using HNO 3 and a HNO 3 + H 2 SO 4 mixture, and subsequently, silver, and copper MNPs were incorporated into the oxidized MWCNTs using the intermatrix synthesis (IMS) technique reported by Bastos-Arrieta et al [24]. Briefly, this technique includes two steps: (1) loading the functional groups with the MNP precursor via ion exchange, for example, a metal salt or metal complex ions, and (2) formation of MNPs by chemical reduction of the metal precursor.…”

Nanocomposite Based on Functionalized Gold Nanoparticles and Sulfonated Poly(ether ether ketone) Membranes: Synthesis and Characterization

“…Hydrophobic and hydrophilic metal nanoparticles have been prepared and a fine control of size, surface chemistry, and assembly has been achieved [25,26]. Several methods for the deposition of nanoparticles (NPs) in a host membrane have been developed over the past few decades, such as atomic layer deposition [27], an intermatrix synthesis (IMS) technique [28], and an incorporation [29,30] and in situ sol-gel method [31]. All of these composite systems have the aim of controlling the nanoparticles and membrane morphologies to prevent NP agglomeration and corrosion, and to enhance their specific properties [32,33].…”

Intermatrix synthesis of Ag, AgAu and Au nanoparticles by the galvanic replacement strategy for bactericidal and electrocatalytically active nanocomposites

“…14,15 Despite these advantages, the surface modification of CNTs with nanocrystals as FMNPs usually involves thermal evaporation 16 , electroless deposition , MNPs hydrosol absorption 18 or electrochemical deposition. 19 Intermatrix Synthesis (IMS) is an in situ methodology for the preparation of nanocomposite materials (NCs) mainly used in different reactive matrices with ion exchange properties 20 . The main features of IMS make it suitable for the modification of all types of matrices (polymeric or not) with ion exchange functionality and for different types of NPs.…”