Activated carbon@MgO@Fe3O4 as an efficient adsorbent for As (III) removal

Activated Carbon/Bentonite/Fe3O4 as Novel Nanobiocomposite for High Removal of Cr(VI) Ions

“…According to Fig. 3, a peak was observed at 2 θ = 23°, which can be attributed to the crystalline structure of AC 10, 25. Also, in the AC/bentonite/magnetite nanocomposite structure, several peaks at 31.24°, 35.53°, 43.7°, 57.18°, and 63.22° were seen, which can be attributed to the crystalline surfaces of (220), (311), (400), (511), and (440), respectively 26.…”

“…In the next step, the powder was poured into NaOH (0.1 M) solution and placed again in the oven at 105 °C for 2 h to increase its specific surface area. After drying in the oven, the powder was poured into a solution containing HCl (0.1 M), which was then placed in the oven at 105 °C for 2 h. After these stages, the AC was prepared 8, 10.…”

“…In the sorption process, different kinds of sorbents are used such as activated carbon (AC), lignocellulosic materials, agricultural wastes, minerals, and clays. AC is one of the most critical adsorbents in the industry, and it can be produced from different materials such as lotus leaves 8, oak shells 9, and Frangula alnus 10. However, the use of AC on a large scale is costly 11.…”

Facile Synthesis of Fe@C Loaded on g-C3N4 for CO2 Electrochemical Reduction to CO with Low Overpotential

“…As expected, 20 mg-Fe@C/C 3 N 4 -1100 had higher magnetic properties in comparison to the other samples. 31,32 More importantly, the prepared catalyst had certain magnetism, which provided a novel train of thought for the development of further different catalysts. 33 Additionally, the electron paramagnetic resonance (EPR) signal intensity of 20 mg-Fe@C/ C 3 N 4 -1100 also increased in comparison to that of 20 mg-Fe@ C/C 3 N 4 -900, implying that the Fe magnetic states had increased (Figure 3b).…”

Magnetic relaxation switching assay based on three-dimensional assembly of Fe3O4@ZIF-8 for detection of cadmium ions

“…Heavy metal pollutants have attracted increasing public attention in recent years due to their serious threat to human health and the environment. [1][2][3][4][5] Highly sensitive and accurate detection of heavy metal contamination in food and environmental samples is important for public health. Cadmium ions (Cd 2+ ) are a typical heavy metal contaminant.…”