Engineered biochar derived from food waste digestate for activation of peroxymonosulfate to remove organic pollutants

Efficient degradation of organophosphorus herbicide by free‐standing 3D reduced graphene oxide supported nFe3O4 catalytic‐activated persulfate

“…S3 and Table 1. It was found that 3D‐rGO and 3D‐rGO‐Fe 3 O 4 produced hysteresis loops in the range of tested relative pressure ( P / P 0 ), indicating that both materials conformed to IV‐type isotherms 37 . The specific surface area of 3D‐rGO‐Fe 3 O 4 was higher than that of 3D‐rGO; the values increased from 46.87 m 2 g −1 to 107.90 m 2 g −1 , which was attributed to the uniform distribution of nFe 3 O 4 in the graphene skeleton.…”

“…It was found that 3D-rGO and 3D-rGO-Fe 3 O 4 produced hysteresis loops in the range of tested relative pressure (P/P 0 ), indicating that both materials conformed to IV-type isotherms. 37 The specific surface area of 3D-rGO-Fe 3 O 4 was higher than that of 3D-rGO; the values increased from 46.87 m 2 g −1 to 107.90 m 2 g −1 , which was attributed to the uniform distribution of nFe 3 O 4 in the graphene skeleton. Furthermore, the average pore diameters of 3D-rGO and 3D-rGO-Fe 3 O 4 were 15.10 nm and 6.85 nm, respectively, indicating that both 3D-graphene materials displayed developed mesoporous pore structure.…”

Involvement of Cooking Oils in Hydrothermal Carbonization of Food Waste

“…Food waste is generated by almost every person on earth on a daily basis, an annual output of 1.3 billion tons, which accounts for almost 1/3 of the urban waste. , Food waste contains nutrients and generally abundant moisture, serving as a culture medium for microorganisms, which creates unpleasant odors and other environmental issues. , Direct disposal of food waste is a waste of chemical energy and material value, as food waste is a carbonaceous material. It can be further utilized as a feedstock for production of fuel and functional materials via thermochemical routes such as hydrothermal carbonization (HTC), , pyrolysis, , activation, , etc.…”

Sunflower biomass power plant by-products: Properties and its potential for water purification of organic pollutants

“…The choice of feedstock is an important issue in the manufacture of AC at an industrial scale due to different factors including such as price fluctuations of the sources, their availability and variability, etc. In the last years has been reported about preparation low-cost AC from biowaste [3], [4], food [5] and municipal wastes [6,7,8]. Via the specific treatment and activation processes (physical and chemical [9]), it is possible significantly modify particular material feature (e.g.…”

“…the porous structure or surface functional groups), while simultaneously have a little or even no effect on other properties [10]. Various kinds of wastes have been used in the preparation of low-cost adsorbents for the removal of heavy metals [11], organics [5], as well as dyes [6], pesticides, antibiotics from contaminated waters. Among agricultural crop residues, woody materials comprise important, challenging precursors for the development of AC due to textural characteristics favourable to the improvement of porosity [12].…”