Recent advances in eco-friendly composites derived from lignocellulosic biomass for wastewater treatment

Preparation of nanocellulose-based nitrogen-doped carbon aerogel electrocatalysts through hydrothermal pretreatment for zinc–air batteries

“…Cellulose is one of the Earth's most abundant natural polymer materials and is the most widely distributed and abundant polysaccharide in nature. [1][2][3][4][5] Generally, cellulose is a high molecular weight homo-polysaccharide composed of b-1,4-Dglucopyranose residues, which usually exhibits a chair-like conformation with a unique three-dimensional cross-linked porous structure. 3,6 However, the network structure formed through hydrogen bonding between hydroxyl groups on the chain segments of the cellulose molecule makes it difficult to disperse the protofibrils, which seriously hinders the commercialization of cellulose as a cathode catalyst for ZABs.…”

“…[1][2][3][4][5] Generally, cellulose is a high molecular weight homo-polysaccharide composed of b-1,4-Dglucopyranose residues, which usually exhibits a chair-like conformation with a unique three-dimensional cross-linked porous structure. 3,6 However, the network structure formed through hydrogen bonding between hydroxyl groups on the chain segments of the cellulose molecule makes it difficult to disperse the protofibrils, which seriously hinders the commercialization of cellulose as a cathode catalyst for ZABs. [7][8][9] CNF is extracted and modified from natural cellulose as a fibrous polymer matrix with a diameter of 3-50 nm, which endows the CNF with some natural advantages of cellulose.…”

“…The theoretical value of the Levich slope (B) is evaluated from eqn(3), where constant B is the straight-line slope, F is the Faraday constant (96 485 C mol À1 ), n is the electron transfer number in the ORR process, o is the speed of the spinning disk, and C O 2 (1.13 Â 10 À3 mol L À1 ) and D O 2 (1.9 Â 10 À5 cm 2 s À1 ) are the concentration and diffusion coefficient of oxygen in 0.1 M KOH solution, and u (1.0 Â 10…”

A Strategy to Valorize a By-Product of Pine Wood (Pinus pinaster) for Copper Removal from Aqueous Solutions

“…The adsorption of pollutants on inexpensive lignocellulosic materials is well known [ 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 ]. These media are used as biosorbents in ion exchange, chelation or adsorption processes to complex metals, dyes, hydrocarbons, bacteria and viruses present in an aqueous solution or in leachates.…”