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Novel, flexible, smart cellulose nanocomposite plates were fabricated by coating graphene nanoplate (GnPs) solution on the surface of cellulose sol, followed by hot pressing, in which GnPs was directly exfoliated and dispersed by PVP as exfoliating and dispersing agent. The structure, properties, and dual sensing (strain and pressure) of the resultant cellulose/GnPs nanocomposite plates (CGP) were...
In this work, carboxylated cellulose beads with highly porous structure were fabricated using phase separation method, and subsequent carboxylation using citrate. The pore structure and average size of the carboxylated cellulose beads could be altered by adjusting reaction temperature and time during carboxylation, in which the average sizes were in the range of 2.08–2.34 mm. Moreover, the resulting...
Cellulose hybrid fibers embedded with silver nanoparticles (Ag NPs) were prepared from a spinning dope through a bottom-up approach. Instead of using toxic agents or high temperature, an alkaline cellulose dope was directly used as a reducing agent for in situ synthesis of Ag NPs. The regenerated cellulose fibers displayed a dense circular microstructure and Ag NPs with a mean diameter of 40.1 nm...
In this work, a novel colorimetric sensor was prepared via a cellulose-polyethylenimine-based Schiff base (cellulose-Schiff base) for capturing and detecting copper ions (Cu2+) in aquatic environments and life systems. The cellulose-Schiff base displayed continuous color changes from inherent pale yellow to deep green due to the formation of a cellulose-Schiff base-Cu2+ charge transfer complex within...
In this work, an efficient and hydrophobic bamboo pulp cellulose-graft-sodium silicate–polyacrylamide (BPC-g-Si–PAM) flocculant was designed and synthesized to improve its flocculation performance as well as the dewatering efficiency of coagulation sludge. The optimal synthesis process of BPC-g-Si–PAM and its optimal flocculation conditions on wastewater treatment were investigated in detail. Compared...
Cu2O nanoparticle (NP)-functionalized cellulose-based aerogel (Cu2O/CBA) with three-dimensional (3D) macroporous structure and abundant active sites was successfully prepared for visible-light photocatalysis via in situ deposition of Cu2O NPs on cellulose-based aerogel (CBA). Octahedral Cu2O NPs were formed and anchored onto the surface and inner wall of the cellulose matrix, which acted as a microreactor...
We present a simple synthetic method for the preparation of cellulose-g-poly(acrylic acid-co-acrylamide) materials with three-dimensional macroporous structure, which can be used for the environmental application as the reusable bioadsorbents. In the grafting copolymerization process, the acrylic acid and acrylamide are cross-linked with cellulose molecules to form three-dimensional interconnected...
Controlled fabrication of biocompatible nanofibers with the required nanoscale and electrical performance can meet the needs of practical applications in biomedicine and electrochemistry. Here we report a high-performance 3D electroconductive nanomaterial templated by biocompatible bacterial cellulose (BC) nanofibers. Our approach can coat BC nanofibers with poly(3,4-ethylenedioxythiophene) (PEDOT)...
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