A 3D net-like structured fluorescent aerogel based on carboxy-methylated cellulose nanofibrils and carbon dots as a highly effective adsorbent and sensitive optical sensor of Cr(vi)

Abstract

A 3D net-like structured fluorescent aerogel as a highly effective adsorbent and sensitive optical sensor of Cr(vi) was fabricated.

Radiation-initiated high strength chitosan/lithium sulfonate double network hydrogel/aerogel with porosity and stability for efficient CO2 capture

“…25 As a kind of porous material, aerogels have been widely investigated in the elds of thermal insulation, catalysis and adsorption in recent years due to their excellent performance such as low volume density, high porosity, large specic surface area and low thermal conductivity. [26][27][28][29] Chitosan is a natural biopolymer prepared by deacetylation of chitin. 30 Chitosan has excellent characteristics including biocompatibility, biodegradability and low immunogenicity, which make it an ideal candidate for the construction of microcapsules, lms, hydrogels and so on.…”

Effective Adsorption and Sensitive Detection of Cr(VI) by Chitosan/Cellulose Nanocrystals Grafted with Carbon Dots Composite Hydrogel

“…As a major parameter during the adsorption process, the effects of temperature on the adsorption process of the CS/CNCD composite hydrogel towards Cr(VI) ion (Figure 3b) were explored. The Q e of the CS/CNCD composite hydrogel increased, indicating that this sorption process may be endothermic [30]. It could be accounted for by the fact that the sorption capacity increases with increasing temperature.…”

Cellulose based flexible and wearable sensors for health monitoring

“…8,9 Cellulose and its nano-derivatives such as cellulose nanocrystals (CNCs), cellulose nanofibrils (CNFs), and bacterial cellulose (BC) are often used as functional materials. [10][11][12] Researchers are presently exploring the utility of cellulose and its derivatives as an advanced alternative to existing technologies due to their abundance and advantageous characteristics, such as nontoxicity, biocompatibility, strength and biodegradability [13][14][15][16] The properties of cellulose such as high durability, structural strength, robustness, flexibility, and its use as a reinforcing agent make it an ideal material for manufacturing new generation flexible wearables and electronics. [17][18][19][20][21][22][23] Wearable electronic devices can be broadly classified as (i) rigid/semi-rigid and (ii) flexible/stretchable.…”