Borhan Albiss^*, Asala Saleh

Journal of Renewable Materials, Vol.12, No.7, pp. 1219-1236, 2024, DOI:10.32604/jrm.2024.050685

Abstract In this work, the fabrication and characterization of the nanocomposite hydrogel, as a solid electrode in electrochemical cell and gel electrolyte material using Indium titanium oxide/polyethylene terephthalate (ITO/PET) flexible substrate for double-layer supercapacitors have been reported. The nanocomposite hydrogel composed of Arabic gum (AG), Acrylic acid (AA), reduced graphene oxide (RGO), and silver nanoparticles (AgNPs) was fabricated via a physical cross-linked polymerization reaction, in which the ascorbic acid was used as a reducing agent to generate AgNPs and to convert Graphene oxide (GO) to RGO during the polymerization reaction. The morphology and structural characteristics of… More > Graphic Abstract

Xiaodong Wang^1,2, Meng Su², Chuntai Liu², Changyu Shen², Xianhu Liu^2,*

Journal of Renewable Materials, Vol.8, No.1, pp. 89-99, 2020, DOI:10.32604/jrm.2020.08493

Abstract Poly (vinyl alcohol) (PVA)/reduced graphene oxide (rGO) nanocomposites is prepared by the immersion of PVA/graphene oxide (GO) nanocomposites in the reducing agent aqueous solution. The PVA/graphene nanocomposites can be used as scaffold after treatment by chemical crosslinking agents. The surface hydrophilicity of the nanocomposite scaffolds decreased with the addition of GO or rGO by measuring the contact angles of scaffolds. The electrical conductivity of PVA/rGO nanocomposite scaffold increased with rGO content increased. The highest conductivity of PVA/rGO nanocomposite scaffolds with 10 wt% rGO could reach to 12.16 × 10⁻³ S/m. The NIH-3T3 fibroblasts attach and grow More >

Sawsan Dacrory^1*, Hussein Abou-Yousef¹, Ragab E. Abou-Zeid¹, Samir Kamel¹, Mohamed S. Abdel-Aziz², Mohamed Elbadry³

Journal of Renewable Materials, Vol.6, No.5, pp. 536-547, 2018, DOI:10.7569/JRM.2017.634190

Abstract Carboxymethyl cellulose hydrogels were developed through crosslinking process using eco-friendly crosslinkers such as maleic, succinic, and citric acids. Carboxymethyl cellulose was prepared from the cellulosic fraction of olive industry residues. A series of hydrogels with varying crosslinker acid concentrations, reaction times, and reaction temperatures was produced to study the swelling capacities and gel fraction of the obtained hydrogels. Additional study pertains to the preparation of antimicrobial nanocomposite hydrogels through in-situ incorporation of the silver nanoparticles during the crosslinking reaction. Silver nanoparticles were prepared by reduction of AgNO3with leaves of Ricinus communis. The particle size of More >