Hydrothermal Assisted Synthesis of ZnFe₂O₄ Embedded g‐C₃N₄ Nanocomposite with Enhanced Charge Transfer Ability for Effective Removal of Nitrobenzene and Cr(VI)

Abstract

A novel hybrid nanocomposite of g‐C3N4/ZnFe2O4 was successfully prepared by a facile hydrothermal method followed by an annealing process. The obtain hybrid catalyst was systematically characterized by XRD, TEM, HRTEM, FT‐IR, UV‐DRS and XPS analysis in order to study the structural, morphological, optical properties and chemical states. The cubic phase ZnFe2O4 crystalline structure and spherical morphology with sizes in the range of 30–35 nm were adequately anchored on the g‐C3N4 sheets. The HR‐TEM image suggests the successful embedment of ZnFe2O4 nanostructures on g‐C3N4 sheets. The photocatalytic activity of the catalyst was investigated using nitrobenzene (NB) and Cr (VI) under visible light. The improved activity of ZnFe2O4/ g‐C3N4 is due to the synergetic effect of superior visible‐light utilization and effective charge carrier separation between g‐C3N4 and ZnFe2O4 nanoparticles. Hence, this heterostructure could be used as a favorable applicant for environmental remediation application for the removal of organic pollutants and metal ions in practical application.

Integration of Mn-ZnFe2O4 with S-g-C3N4 for Boosting Spatial Charge Generation and Separation as an Efficient Photocatalyst

“…The resultant precipitates were separated by filtering, rinsed with deionized water and pure ethanol, and then dried at 85 °C in an oven. Other percentages of Mn-ZnFe 2 O 4 (0, 1, 3, 5, 7, and 9 wt.%) were also synthesized using the same method [ 27 ].…”

Recent advancements of g-C3N4-based magnetic photocatalysts towards the degradation of organic pollutants: a review

“…From this perspective, we can conclude that the degree of magnetization plays a vital role in the isolation of catalysts without any significant loss even after successive runs. Table 4 provides information about various combinations of ferrites, and g-C 3 N 4 NCs, which were designed and executed for the purification of aqueous solutions consisting of numerous organic-inorganic contaminants [96,[249][250][251][252][253][254][255][256][257][258][259][260][261][262][263][264][265][266]. These magnetic heterojunctions display exciting properties, such as high SSA, enough magnetism, convenient particle size, effortless recovery and outstanding photocatalytic performance in various AOPs.…”