2022
DOI: 10.3390/ma15051928
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Coupling Removal of P-Chloronitrobenzene and Its Reduction Products by Nano Iron Doped with Ni and FeOOH (nFe/Ni-FeOOH)

Abstract: The removal of chlorinated pollutants from water by nanoparticles is a hot topic in the field of environmental engineering. In this work, a novel technique that includes the coupling effect of n-Fe/Ni and its transformation products (FeOOH) on the removal of p-chloronitrobenzene (p-CNB) and its reduction products, p-chloroaniline (p-CAN) and aniline (AN), were investigated. X-ray diffraction (XRD) and transmission electron microscopy (TEM) were employed to characterize the nano-iron before and after the reacti… Show more

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“…In this work, we report on the design, fabrication, and photocatalytic performance of a new multifunctional photocatalyst, GO/Ni:FeOOH/SiNWs, which contains Ni:FeOOH (shell)/SiNW (core) core/shell nanowires with GO flakes coated on top of the nanowire arrays to enhance the rate of production of •OH for the UV/H 2 O 2 system. The GO/Ni:FeOOH/SiNW photocatalyst combines the advantages of a large surface area and light absorption characteristics of SiNWs with heterogeneous photo-Fenton active Ni:FeOOH and charge carrier separator GO. , The use of this photocatalyst increases the •OH yield by 5.7 times compared to that of the blank H 2 O 2 solution sample and also extends the irradiation absorption spectrum to include UV and visible light. Quantitatively, the produced •OH concentration reaches 3.32 μM (0.332%) from 100 mM H 2 O 2 after 250 nm (7 mW/cm 2 ) UV light irradiation for 30 min.…”
mentioning
confidence: 99%
“…In this work, we report on the design, fabrication, and photocatalytic performance of a new multifunctional photocatalyst, GO/Ni:FeOOH/SiNWs, which contains Ni:FeOOH (shell)/SiNW (core) core/shell nanowires with GO flakes coated on top of the nanowire arrays to enhance the rate of production of •OH for the UV/H 2 O 2 system. The GO/Ni:FeOOH/SiNW photocatalyst combines the advantages of a large surface area and light absorption characteristics of SiNWs with heterogeneous photo-Fenton active Ni:FeOOH and charge carrier separator GO. , The use of this photocatalyst increases the •OH yield by 5.7 times compared to that of the blank H 2 O 2 solution sample and also extends the irradiation absorption spectrum to include UV and visible light. Quantitatively, the produced •OH concentration reaches 3.32 μM (0.332%) from 100 mM H 2 O 2 after 250 nm (7 mW/cm 2 ) UV light irradiation for 30 min.…”
mentioning
confidence: 99%