article · Results in Chemistry
A nanocomposite combining graphitic carbon nitride and cobalt ferrite was synthesised using a straightforward co-precipitation technique to break down methylene blue dye. Testing confirmed the crystalline structure and showed that the composite material possesses a narrower energy band gap of 2.35 electron volts and a higher surface area of 262.49 square metres per gram compared to its individual parts. Under photocatalytic testing, the composite achieved a 97.4 percent degradation efficiency for the dye, outperforming both single components. This performance is linked to enhanced optical absorption and reduced recombination of electron-hole pairs during the reaction. Performance was further assessed across varying solution acidity, contact duration, dye concentration, and catalyst dosage. Testing with chemical scavengers demonstrated that while superoxide and hydroxide radicals play a role, holes are the primary reactive species driving dye breakdown.
Industrial dyes such as methylene blue present persistent water pollution challenges. Developing photocatalysts that efficiently use light to break down these contaminants offers an environmentally friendly treatment route. Demonstrating that combining carbon nitride with cobalt ferrite substantially boosts dye degradation under controlled laboratory conditions provides valuable data for designing more effective water purification materials.
The technology addresses wastewater treatment and environmental remediation, particularly for industries discharging synthetic dyes. Potential users include water treatment facility operators and industrial effluent managers. Based on the abstract, the work represents early-stage laboratory research focused on material synthesis, characterisation, and bench-scale dye degradation, meaning further scaling and testing in complex real-world effluents are required before practical deployment.
AI-generated from the published abstract. Always read the original work before citing.
In this work, we have reported a successful synthesis of g-C3N4/CoFe2O4 nanocomposite material using a facile co-precipitation method for photocatalytic degradation of methylene blue dye (MB). The crystalline structure, functional groups present, Surface area, Band gap energy and surface charge of the synthesized photocatalysts were investigated by powder x-ray diffraction (PXRD), Fourier transfer Infrared (FTIR) Spectroscopy, BET, UV-Vis spectroscopy and pHpzc techniques respectively. The pXRD result reveals the formation of desired phases of g-C3N4, CoFe2O4, and g-C3N4/CoFe2O4 composite. The energy band gap pure g-C3N4, CoFe2O4, and g-C3N4/CoFe2O4 materials are found to be 2.53, 2.71, and 2.35 eV respectively. The g-C3N4/CoFe2O4 composite achieved the highest surface area of 262.49 m2/g than that of single components. The photocatalytic efficiency of the synthesized materials was investigated by the degradation of MB. Among the synthesized materials, g-C3N4/CoFe2O4 showed highest photocatalytic efficiency of 97.4% than g-C3N4 and CoFe2O4 which is possibly due to the band gap enhancement and effectively reduces the recombination rate of electron-hole pairs during the photocatalytic reaction. The photocatalytic activities of the g-C3N4/CoFe2O4 composite were also investigated at varying pH of solution, contact time, initial concentration of MB, and photocatalyst dose in order to get the optimized conditions. The reactive species were identified in the catalytic system using ammonium oxalate, ascorbic acid and methanol as hole, superoxide radical and hydroxide radical scavengers respectively. The inhibition appeared from the hole scavenger is the highest and followed by superoxide and hydroxide radicals. From the scavenger experiment, it could be understood that all the reactive species contributed to MB degradation.
This page summarises published work. The authoritative version sits with the publisher.
DOI: 10.1016/j.rechem.2024.101306
Is something wrong with this record? Report it or request removal.
Discussion
Have you built on this work, tried to replicate it, or seen it applied in practice? Share what you know. Verified researchers and MARATTO™ domain experts can open a discussion, and any member can reply. Contributions are reviewed before they appear.
No discussion yet. Open the first thread.
New to MARATTO™? Create a free account.
