Recent Advances on Porous Siliceous Materials Derived from Waste

Author:

Montini Daniele1,Cara Claudio2,D’Arienzo Massimiliano1,Di Credico Barbara1ORCID,Mostoni Silvia1ORCID,Nisticò Roberto1ORCID,Pala Luca2,Scotti Roberto1

Affiliation:

1. Department of Materials Science, University of Milano-Bicocca, INSTM, Via R. Cozzi 55, 20125 Milano, Italy

2. Fluorsid S.p.A., Strada Macchiareddu 2a, 09032 Assemini, Italy

Abstract

In recent years, significant efforts have been made in view of a transition from a linear to a circular economy, where the value of products, materials, resources, and waste is maintained as long as possible in the economy. The re-utilization of industrial and agricultural waste into value-added products, such as nanostructured siliceous materials, has become a challenging topic as an effective strategy in waste management and a sustainable model aimed to limit the use of landfill, conserve natural resources, and reduce the use of harmful substances. In light of these considerations, nanoporous silica has attracted attention in various applications owing to the tunable pore dimensions, high specific surface areas, tailorable structure, and facile post-functionalization. In this review, recent progress on the synthesis of siliceous materials from different types of waste is presented, analyzing the factors influencing the size and morphology of the final product, alongside different synthetic methods used to impart specific porosity. Applications in the fields of wastewater/gas treatment and catalysis are discussed, focusing on process feasibility in large-scale productions.

Publisher

MDPI AG

Subject

General Materials Science

Reference222 articles.

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