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Materials from renewable resources have attracted increasing attention in recent decades as a result of environmental concerns and due to the depletion of petroleum resources. Polymeric materials from renewable sources have a long history. They were used in ancient times and later accompanied the development of man and civilization. Currently, they are widespread in many areas of life and used, for example, in packaging and in the automotive, construction and pharmaceutical industries.The aim of this Special Issue is to highlight the progress in the manufacturing, characterization, and applications of environmentally friendly polymeric blends from renewable resources. The following aspects were investigated: (i) synthesis of composites based on natural llers; (ii) chemical modi cation of polymers or fillers in order to improve interfacial interactions; (iii) potential applications of the biobased materials.

Environmental science, engineering & technology --- lignin --- microspheres --- composites --- polymeric material --- fractionation --- porosity --- radiation grafting --- cotton linter --- phosphate adsorption --- dynamic studies --- bio-polyethylene --- barley straw --- thermomechanical fibers --- interface --- automotive industry --- natural fiber --- polypropylene --- stiffness --- curauá fibers --- microcrystalline cellulose (MCC) --- unsaturated polyester resins --- thermogravimetric analysis (TG) --- mechanical analysis --- dynamic mechanical analysis (DMA) --- LignoBoost® kraft lignin --- potentiometric sensors --- carbon nanotubes --- impedance spectroscopy --- transition metals --- rice nanofibers --- biocomposites --- casting --- mechanical properties --- thermal properties --- rigid polyurethane foams --- lignocellulosic materials --- filler --- chemical treatment --- mechanical characteristics --- pyrolysis process --- Caragana korshinskii biochar --- physicochemical properties --- adsorption characteristics --- nitrate nitrogen --- bio-oil --- polyurethanes --- hemp shives --- bio-filler --- oil impregnation --- sugar beet pulp --- thermal conductivity --- polyurethane composites --- lavender --- kaolinite --- hydroxyapatite --- high-ball milling process --- antibacterial activity --- wood–resin composites --- unsaturated polyester resin --- recycled PET --- wood flour --- renewable resources --- silver nanoparticles --- n/a --- curauá fibers --- wood-resin composites

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Adsorption is a well-established operation used for water decontamination and the remediation of industrial effluents. It is also recognized as a key technology for recovering substances of economic interest or those at risk of scarcity. The new sustainability paradigm of the circular economy and the current context of promoting the efficient use of natural resources, water and energy have been motivating the search for eco-friendly adsorbents for water and wastewater treatment and resource recovery. This Special Issue compiles 21 papers (17 research articles and 4 reviews), addressing the removal of heavy metals, toxic metalloids, precious metals and organics from aqueous solution, using a wide variety of adsorbents derived from natural and waste materials.

activated carbon --- modification --- surfactant --- adsorption --- methylene blue --- ions effect --- anionic dye --- cetyltrimethylammonium bromide --- sepiolite --- two-step modification --- electroplating sludge --- hydrothermal process --- heavy metal --- electroplating wastewater --- upcycling --- biochar --- thiourea --- cadmium pollution --- adsorption characteristics --- water treatment --- manganese --- iron --- banana peel --- pre-treatment --- phosphoric acid --- human hair --- kinetics --- isotherms --- biosorption --- algae --- bacteria --- biosorbent --- pharmaceutical waste --- complex nickel-aluminum-zirconium hydroxide --- arsenic ion --- different fractions --- Hg2+ --- characterization --- adsorption mechanism --- bisphenol A --- equilibrium --- heavy metals --- K-type zeolite --- fly ash --- lead --- immobilization --- Pb2+ removal --- sorption --- precipitation --- waste recycling --- removal mechanisms --- solid-to-water ratio --- microcystin --- separation --- water quality --- cyanobacteria --- algal bloom --- phenols --- polycyclic aromatic hydrocarbons --- wastewater --- precious metals --- hydrometallurgical processing --- selectivity --- pine bark --- olive mill wastewater --- carbon nanotubes --- polydimethilsiloxane --- waste treatment --- phenolic compounds --- resources recovery --- dyes removal --- wastewater treatment --- agrowaste biomass --- diclofenac removal --- advanced oxidation treatments --- low-cost sorbents --- nano zerovalent iron --- granular activated carbon --- organoselenium --- water --- treatment --- cadmium --- cellulose nanofibrils --- iron nanoparticles

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• Reference Manager
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Adsorption is a well-established operation used for water decontamination and the remediation of industrial effluents. It is also recognized as a key technology for recovering substances of economic interest or those at risk of scarcity. The new sustainability paradigm of the circular economy and the current context of promoting the efficient use of natural resources, water and energy have been motivating the search for eco-friendly adsorbents for water and wastewater treatment and resource recovery. This Special Issue compiles 21 papers (17 research articles and 4 reviews), addressing the removal of heavy metals, toxic metalloids, precious metals and organics from aqueous solution, using a wide variety of adsorbents derived from natural and waste materials.

Technology: general issues --- Environmental science, engineering & technology --- activated carbon --- modification --- surfactant --- adsorption --- methylene blue --- ions effect --- anionic dye --- cetyltrimethylammonium bromide --- sepiolite --- two-step modification --- electroplating sludge --- hydrothermal process --- heavy metal --- electroplating wastewater --- upcycling --- biochar --- thiourea --- cadmium pollution --- adsorption characteristics --- water treatment --- manganese --- iron --- banana peel --- pre-treatment --- phosphoric acid --- human hair --- kinetics --- isotherms --- biosorption --- algae --- bacteria --- biosorbent --- pharmaceutical waste --- complex nickel-aluminum-zirconium hydroxide --- arsenic ion --- different fractions --- Hg2+ --- characterization --- adsorption mechanism --- bisphenol A --- equilibrium --- heavy metals --- K-type zeolite --- fly ash --- lead --- immobilization --- Pb2+ removal --- sorption --- precipitation --- waste recycling --- removal mechanisms --- solid-to-water ratio --- microcystin --- separation --- water quality --- cyanobacteria --- algal bloom --- phenols --- polycyclic aromatic hydrocarbons --- wastewater --- precious metals --- hydrometallurgical processing --- selectivity --- pine bark --- olive mill wastewater --- carbon nanotubes --- polydimethilsiloxane --- waste treatment --- phenolic compounds --- resources recovery --- dyes removal --- wastewater treatment --- agrowaste biomass --- diclofenac removal --- advanced oxidation treatments --- low-cost sorbents --- nano zerovalent iron --- granular activated carbon --- organoselenium --- water --- treatment --- cadmium --- cellulose nanofibrils --- iron nanoparticles