Mechanisms and guidelines on the sustainable engineering of self-assembling; nanostars and nanoflowers. (20th August 2021)

• Record Type: Journal Article
• Authors: Dastjerdi, Roya; Hashemikia, Samaneh
• Is Part Of: Journal of cleaner production. Volume 312(2021)
• Publication Date: 2021-08-20
• Subjects: TiO2/Ag/SiO2 nanostars -- Ag/SiO2 nanoflowers -- Engineering of colloidal self-assembling procedures -- Fast one-step one-pot green techniques -- Toxinless chemical-free self-assembling of nanostructures; Factory and trade waste -- Management -- Periodicals; Manufactures -- Environmental aspects -- Periodicals; Déchets industriels -- Gestion -- Périodiques; Usines -- Aspect de l'environnement -- Périodiques; 628.5
• DOI: 10.1016/j.jclepro.2021.127570
• Languages: English
• ISSNs: 0959-6526

Abstract

Abstract: This research reports the production of self-assembled colloidal silver/silica (Ag/SiO2 ) nanoflowers as well as star-like titania included one (TiO2 /Ag/SiO2 nanostars) for the first time. We devise a green pathway for self-assembling process via a fast one-pot single-step technique in pure water media without using any chemicals on the account of selecting well-engineered nanostructure components rewarding their zero zeta potential values varying upper and under pH = 7. The formation mechanisms of these nanostructures are elaborated and modeled serving as a key major guideline to control the self-assembling of nanostructures. The nanostructures as well as TiO2 colloidal solutions are applied to viscose/polyester fabrics via an easily-scalable green water-based pad-dry technique. Successful multifunctional features are recorded for the treated samples. The samples treated with TiO2 /Ag/SiO2 nanostars and Ag/SiO2 nanoflowers demonstrate the best and worst photocatalytic activities, respectively. Ozone and polysiloxane biomimetic co-photocatalysis assistant mechanisms are deeply discussed, proposing running a chain-reaction mechanism. Graphical abstract: Image 1 Highlights: Engineering green fast one-pot one-step self-assembling; first Ag/SiO2 nanoflowers. Engineering self-assembling of first TiO2 /Ag/SiO2 nanostars with the same approach. Modeling the mechanism of control of challenging nanostructure's geometries. Proposing mechanism of ozone and polysiloxane biomimetic co-photocatalysis. Opening cost-effective easy-scalable pathways for multifunctional bioactive yields.