Removal of Lead from Aqueous Solutions by Polyethylene Waste/Nano-manganese Dioxide Composite

Adsorption of methylene blue onto sugarcane bagasse‐based adsorbent materials

“…[15] Several adsorbents have been investigated for their potential to remove MB dye such as metal-organic framework-based materials, [16,17] Ag-doped MnO 2 -CNT nanocomposite, [18] poly(methyl methacrylate)-grafted alginate/Fe 3 O 4 nanocomposite, [19] and iron oxide impregnated with dextrin (Dex-Fe 3 O 4 ) nanocomposite. [20] In addition, low-cost and eco-friendly materials such as guar gum/activated carbon nanocomposite, [21] L-cysteine-modified montmorillonite (MMT)-immobilized sodium alginate biopolymer-based nanocomposite, [22] chitosan-grafted polyaniline-OMMT nanocomposite, [23] coconut husk, [24] eggshell, [25] hen feathers [26][27][28] wood, chitin, industrial, agricultural, and domestic wastes, [29][30][31][32] and others have been extensively studied for the removal of synthetic dyes. [6] Finding a better use for abundant and renewable waste materials is very important in order to minimize the environmental impacts caused by inadequate disposal of these wastes.…”

Challenges and opportunities in sustainable management of microplastics and nanoplastics in the environment

“…There is a huge demand to use carbon-based materials for adsorbing contaminants, especially those derived from cheap sources such as waste materials and by-products of industries to boost the circular economy (Zhang et al, 2020). Plastic waste is converted to AC through a variety of physical and chemical treatments with numerous applications, including the adsorption of heavy metals, gases, and other harmful environmental contaminants (Adibfar et al, 2014;Al Lafi et al, 2017;Yu et al, 2019) (Table 5). The different adsorption capacities of AC are defined by surface area, pore volume, pore size, and the presence of functional groups on the pore surfaces (Mendoza-Carrasco et al, 2016).…”

“…Toxic heavy metals, such as Cd(II), Pb(II), and mercury (Hg(II)), are potentially adsorbed from aqueous solutions by PS and PE after chemical treatment via nitration and sulfonation in the former and potassium permanganate (KMnO4) in the latter (Al Lafi et al, 2017;Bekri-Abbes et al, 2006;Donbebe and Dixon, 2014;Mahmoud et al, 2016). A hydrogel composite synthesized from linear low-density polyethylene-g-poly (acrylic acid)-co-starch/organomontmorillonite can adsorb Pb(ΙΙ) (430 mg g −1 ) from aqueous solutions (Irani et al, 2015).…”

Spectroscopic investigations to reveal synergy between polystyrene waste and paraffin wax in super-hydrophobic sand

“…On the other hand, recycling of commodity plastic wastes such as polyethylene (PE), polypropylene (PP) and polystyrene (PS) rather than landfill them prevents leakage of toxic substances into the soil, and subsequently benefits both the local and extended ecosystem 13 , 14 . Various attempts including material, thermal and chemical recycling 15 – 17 have been verified to deal with the disposal of already littered plastic wastes. One merit of the present work was to investigate the effects of adding plastic wastes to the composition of paraffin-coated sand.…”