Alginate‐Derived Active Blend Enhances Adsorption and Photocatalytic Removal of Organic Pollutants in Water

Vassalini, Irene; Gjipalaj, Joana; Crespi, Stefano; Gianoncelli, Alessandra; Mella, Mariella; Ferroni, Matteo; Alessandri, Ivano

doi:10.1002/adsu.201900112

Cited by 20 publications

(18 citation statements)

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“…Further promising fields of applications of PCMs encompass smart catalysts for environmental remediation [ 130 , 131 , 132 , 133 ] and system chemistry applied to solid-state devices [ 134 ]. Broadening the horizons of research could stimulate the discovery and development of new materials and architectures, with major, yet unpredictable benefits for different areas of application.…”

Section: Discussionmentioning

confidence: 99%

Stimuli-Responsive Phase Change Materials: Optical and Optoelectronic Applications

2021

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Stimuli-responsive materials offer a large variety of possibilities in fabrication of solid- state devices. Phase change materials (PCMs) undergo rapid and drastic changes of their optical properties upon switching from one crystallographic phase to another one. This peculiarity makes PCMs ideal candidates for a number of applications including sensors, active displays, photonic volatile and non-volatile memories for information storage and computer science and optoelectronic devices. This review analyzes different examples of PCMs, in particular germanium–antimonium tellurides and vanadium dioxide (VO2) and their applications in the above-mentioned fields, with a detailed discussion on potential, limitations and challenges.

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Section: Discussionmentioning

confidence: 99%

Stimuli-Responsive Phase Change Materials: Optical and Optoelectronic Applications

2021

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“…Sustainable materials can offer several opportunities to depollute water, as the synthesis of safe adsorbent materials derived from waste [ 45 , 46 ]. New strategies for pollutants removal allowed also the synthesis of alginate-derived blend [ 47 ], obtained without any commercial additives. These new materials show a high performance in the sequestration of pollutants in water matrices (SDG 6).…”

Section: Sustainable Materials Developed By the Instm Consortiummentioning

confidence: 99%

“…Recent works of INSTM research groups demonstrated that a rational design of remediation systems inspired by criteria of sustainability and green chemistry can help to advance detection and removal of a variety of persistent organic pollutants from water. In this context, alginate-based smart sponges play a key role and open exciting opportunities for future applications [ 47 ]. Additionally, porous materials were synthesized to obtain membranes and foams [ 48 ], with good results as an adsorbent to remove heavy metals.…”

Section: Sustainable Materials Developed By the Instm Consortiummentioning

confidence: 99%

“…Other heavy metals stabilization technologies, based on the use of waste and by-products, were also proposed [ 49 ] to manage, for example, fly ash [ 44 , 50 ]. Finally, it is also interesting to highlight the new emerging water pollutants, typical of the richest countries, like for example pharmaceuticals [ 47 , 51 ]. Some of these pollutants are diffused in surface water and groundwater, due to their stability and hydrophilicity, making them able to persist also in wastewater treatment plants.…”

Section: Sustainable Materials Developed By the Instm Consortiummentioning

confidence: 99%

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Sustainable Materials and their Contribution to the Sustainable Development Goals (SDGs): A Critical Review Based on an Italian Example

et al. 2021

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The Sustainable Development Goals (SDGs) have been proposed to give a possible future to humankind. Due to the multidimensional characteristic of sustainability, SDGs need research activities with a multidisciplinary approach. This work aims to provide a critical review of the results concerning sustainable materials obtained by Italian researchers affiliated to the National Interuniversity Consortium of Materials Science and Technology (INSTM) and their contribution to reaching specific indicators of the 17 SDGs. Data were exposed by using the Web of Science (WoS) database. In the investigated period (from 2016 to 2020), 333 works about sustainable materials are found and grouped in one of the following categories: chemicals (33%), composites (11%), novel materials for pollutants sequestration (8%), bio-based and food-based materials (10%), materials for green building (8%), and materials for energy (29%). This review contributes to increasing the awareness of several of the issues concerning sustainable materials but also to encouraging the researchers to focus on SDGs’ interconnections. Indeed, the mapping of the achievements can be relevant to the decision-makers to identify the opportunities that materials can offer to achieve the final goals. In this frame, a “Sustainable Materials Partnership for SDGs” is envisaged for more suitable resource management in the future.

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“…Polymer supports have proved to be among the best candidates for immobilising photocatalyst nanoparticles due to their numerous advantages: low cost, ready accessibility, chemical inertness, and mechanical stability with high durability. In addition, polymer supports have relatively low density, allowing for the design of floating photocatalysts, especially in aqueous media [ 11 , 17 , 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Floating ZnO QDs-Modified TiO2/LLDPE Hybrid Polymer Film for the Effective Photodegradation of Tetracycline under Fluorescent Light Irradiation: Synthesis and Characterisation

et al. 2021

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In this work, mesoporous TiO2-modified ZnO quantum dots (QDs) were immobilised on a linear low-density polyethylene (LLDPE) polymer using a solution casting method for the photodegradation of tetracycline (TC) antibiotics under fluorescent light irradiation. Various spectroscopic and microscopic techniques were used to investigate the physicochemical properties of the floating hybrid polymer film catalyst (8%-ZT@LLDPE). The highest removal (89.5%) of TC (40 mg/L) was achieved within 90 min at pH 9 due to enhanced water uptake by the LDDPE film and the surface roughness of the hybrid film. The formation of heterojunctions increased the separation of photogenerated electron-hole pairs. The QDs size-dependent quantum confinement effect leads to the displacement of the conduction band potential of ZnO QDs to more negative energy values than TiO2. The displacement generates more reactive species with higher oxidation ability. The highly stable film photocatalyst can be separated easily and can be repeatedly used up to 8 cycles without significant loss in the photocatalytic ability. The scavenging test indicates that the main species responsible for the photodegradation was O2●−. The proposed photodegradation mechanism of TC was demonstrated in further detail based on the intermediates detected by LC-time-of-flight/mass spectrometry (LC/TOF-MS).

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Alginate‐Derived Active Blend Enhances Adsorption and Photocatalytic Removal of Organic Pollutants in Water

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Cited by 20 publications

References 43 publications

Stimuli-Responsive Phase Change Materials: Optical and Optoelectronic Applications

Stimuli-Responsive Phase Change Materials: Optical and Optoelectronic Applications

Sustainable Materials and their Contribution to the Sustainable Development Goals (SDGs): A Critical Review Based on an Italian Example

Floating ZnO QDs-Modified TiO2/LLDPE Hybrid Polymer Film for the Effective Photodegradation of Tetracycline under Fluorescent Light Irradiation: Synthesis and Characterisation

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