Hybrid Cellulose–Silica Materials from Renewable Secondary Raw Resources: An Eco‐friendly Method

Abstract

Hybrid organic–inorganic materials based on cellulose matrix and silica particles are obtained from wastes of the local paper recycling mill and sugarcane mill as renewable secondary raw materials. The performance comparison of these hybrid materials made from secondary raw materials against the materials made from pure, raw sources is discussed. The Fourier transform infrared spectra show that cellulose features prevail even at 43 wt% silica nanoparticles in the hybrid materials. Such a high content of silica originated from sugarcane bagasse ash and hollow glass microspheres contributes to the high thermal stability of the final composites, as seen by thermogravimetric analysis with very low water absorption. This one‐step approach of biobased hybrid materials represents an excellent way to produce high‐performance materials with high content of inorganic nanoparticles for a wide variety of applications like energy efficient building material completely cement‐free.

Post-synthesis treatment of graphene oxide/silica particles nanocomposite with piranha acid for functionalization

“…Figure 5 shows the FTIR spectra for GO+Si_1 min, GO+Si_3 min, GO+Si_5 min, GO+Si_10 min taken in the ranges of 600-4000 nm. As we can see all the samples display a common characteristic absorption peak at 797 cm −1 which denotes the symmetrical stretching of Si-O-Si [37] and thereby proves the existence of the nanocomposite. The GO+Si_1 min and GO+Si_3 min spectrums further indicate the band associated with Si-OH (stretching vibration at 954 cm −1 ) which disappears in case of GO+Si_5 min and reappears in GO+Si_10 min but shifts to 957 cm −1 due to probable disturbance caused by environmental change.…”

Adsorption Characteristics of Ag Nanoparticles on Cellulose Nanofibrils with Different Chemical Compositions

“…It has long been used for daily life and industrial purposes, such as paper, cardboard, textiles, and building materials [4,5]. Recent research has focused on environmentally friendly functional new materials that use the physicochemical properties of cellulose, owing to the increase in the demand for renewable, biodegradable, and sustainable materials [6][7][8][9]. Among the forms of cellulose, more attention has been paid toward nano-sized cellulosic fibers, which have characteristics such as low weight, high strength, and high stiffness for preparing nanocomposites with inorganic and metallic particles [10,11].…”

Plasma Surface Treatment of Cu Current Collectors for Improving the Electrochemical Performance of Si Anodes

“…It is known that the surface of bare Cu lacks polar functional groups and exhibits hydrophobic properties. , In contrast, the FT-IR spectrum for PL-Cu showed bands at 3365 and 2970 cm –1 , attributed to the symmetric and asymmetric stretching vibrations of the O–H bond, respectively . Additionally, bands were present at 1092 and 1052 cm –1 , attributed to the C–O bond. , Therefore, considering that multiple polar functional moieties were created on the PL-Cu surface, it can be inferred that plasma treatment successfully functionalized the Cu surface to hydrophilicity.…”

“…21 Additionally, bands were present at 1092 and 1052 cm −1 , attributed to the C−O bond. 22,23 Therefore, considering that multiple polar functional moieties were created on the PL-Cu surface, it can be inferred that plasma treatment successfully functionalized the Cu surface to hydrophilicity.…”