Preparation of magnetic adsorbent-photocatalyst composites for dye removal by synergistic effect of adsorption and photocatalysis

Activated carbon derived from waste orange and lemon peels for the adsorption of methyl orange and methylene blue dyes from wastewater

“…Kinetic studies were performed by varying the exposure time from 5 to 180 min, while adsorption isotherms were studied at initial dye concentrations of 50–200 mg L ─1 . Tables 1 and 2 shows equations of these models and they are widely reported from literature ( Cheng et al., 2022 ; Gugushe et al., 2021 ; Mashile et al., 2021 ; Mpupa et al., 2020 ).…”

“…Dye effluents discharged into the aquatic environment increase the color saturation of the receiving water and prevent sunlight from entering the water. As a result, these will harm aquatic life ( Cheng et al., 2022 ). The most widely used dye in the textile industry is methylene blue, which is used for dyeing and finishing fabrics.…”

Effective Removal of Basic Red 46 with Ti3C2 Powder Modified with Citric acid

“…As a result of the improper treatment and discharged variously toxic organic and inorganic pollutants and metal ions and so on which mainly were caused via fast urbanization and industrialization, [1] water pollution has already turned into an inevitably vital ecological environmental issue [2] . The inappropriate emission of some harmful chemicals into water such as organic dyes derived from food, textiles, plastics will bring about severe harm to human beings, animals, ecology and plants [3] .…”

Preparation of C-based Magnetic Materials from Fruit Peel and Hydrochar using Snake Fruit (Salacca zalacca) Peel as Adsorbents for the Removal of Malachite Green Dye

“…Magnetic materials are also widely used in the removal of dye pollutants, both as adsorbents and as photocatalysts. Magnetic materials used in the removal of dye pollutants include carbon-based materials such as chitosan-magnetic Fe3O4/activated carbon nanocomposites that adsorb cationic and anionic dyes (Kaveh and Bagherzadeh, 2022), a chitosan-based magnetic material that could adsorb acid orange 7 dye with an adsorption capacity of 97 mg/g (Cojocaru et al, 2019), a magnetic cellulose-based ionic liquid that could adsorb MG and Congo Red dyes with adsorption capacities of 1,299.3 mg/g and 1,068.1 mg/g, respectively (Ling et al, 2022), a superb natural magnetic material that could adsorb crystal violet dye with an adsorption capacity of 117 mg/g (Sanad et al, 2021), and a biochar-based magnetic material that could adsorb rhodamine B and MG dyes with adsorption capacities of 334.89 mg/g and 576.73 mg/g, respectively (Cheng et al, 2022). Thus, carbon-based magnetic materials are promising novel adsorbents to remove dye pollutants.…”