One-step synthesis of γ-Fe2O3/Fe3O4 nanocomposite for sensitive electrochemical detection of hydrogen peroxide

Degradation of Oxytetracycline by Persulfate Activation Using a Magnetic Separable Iron Oxide Catalyst Derived from Hand-Warmer Waste

“…The magnetic property of HWWC was measured using vibrating sample magnetometer (VSM) (Model 7404, Lake shore cryotronics, USA). 0012), (1115), and (4012) were also in good agreement with those of γ-Fe2O3 [28,29]. Other impurity peaks at approximately 33.30°, 54.10°, and 63.40° agreed with α-Fe2O3 [30].…”

“…Based on the elemental analysis (O = 32.23%, Fe = 66.98%) (Figure 2b), it was determined that the sample mainly consisted of Fe and O, therefore confirming that the produced powder was Fe2O3, which agreed with the XRD results. 0012), (1115), and (4012) were also in good agreement with those of γ-Fe 2 O 3 [28,29]. Other impurity peaks at approximately 33.30 • , 54.10 • , and 63.40 • agreed with α-Fe 2 O 3 [30].…”

“…The strongest peak observed at approximately 2θ = 35.58 • indicated a reduction in the (119) diffraction of γ-Fe 2 O 3 [28]. The peaks observed at approximately 30.08 • , 43.16 • , 57.16 • , and 62.80 • corresponding to (205), (0012), (1115), and (4012) were also in good agreement with those of γ-Fe 2 O 3[28,29]. Other impurity peaks at approximately 33.30 • , 54.10 • , and 63.40 • agreed with α-Fe 2 O 3[30].…”

Removal of Acid Blue 342 from Aqueous Solution by Fe2O3/Fe3O4 Magnetic Nanocomposite

“…As shown in Fig. 4, the absorption band at 572.6 cm -1 is related to the stretching vibrations of Fe-O bonds of Fe 2 O 3 and Fe 3 O 4 nanoparticles [37].…”

An electrochemical sensor based on AuPd@FexOy nanozymes for a sensitive and in situ quantitative detection of hydrogen peroxide in real samples

“…[23][24][25] In particular, iron oxides have been demonstrated as suitable candidates for EC sensor applications owing to their unique peroxidase-like activity, abundancy in nature, low toxicity, good physicochemical stability and high EC activity. 26,27 For example, taking the high electrocatalytic activity of iron oxide (Fe 3 O 4 ) nanodots, Bas et al have developed an enzyme-free sensor based on Fe 3 O 4 nanodots for the highly sensitive and selective detection of H 2 O 2 through the formation of Fe 3 O 4 nanodots on an indium tin oxide (ITO) substrate via a block copolymer template. 28 Due to their unique analytical performances, there is a continuous interest towards developing nanomaterial-based enzyme-free H 2 O 2 EC sensors.…”