Browsing by Author "Mwabulil, Fred"

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    Porous Graphitic Phase Carbon Nitride/Graphene Oxide Hydrogel Microspheres for Efficient and Recyclable Degradation of Aflatoxin B1 in Peanut Oil.
    (ELSEVIER, 2023-03-15) Sun, Shumin; Yang, Jiayi; Liu, Yajie; Xie, Yanli; Mwabulil, Fred
    Removal of aflatoxin is an urgent issue in agricultural products. A porous graphitic carbon nitride/graphene oxide hydrogel microsphere (CN/GO/SA) was synthesized and used to degrade AFB1 in peanut oil. CN/GO/SA was characterized by scanning electron micrograph (SEM), X-ray diffraction (XRD) and FT-IR. The introduction of GO significantly improved the adsorption capacity and visible light activity of photocatalysts. About 98.4% AFB1 in peanut oil was removed by 20% CN/GO/SA under visible light for 120 min. ‧O2 – and h+ were the main active species during photoreaction, and five degradation products were identified by UPLC-Q-Orbitrap MS analysis. At the same time, the quality of treated peanut oil was still acceptable. More importantly, CN/GO/SA showed excellent cycle stability, and the degradation rate of AFB1 in peanut oil remained above 95% after five time recycling. This work provides a practical way for developing efficient and sustainable photocatalysts to degrade mycotoxins in edible oil.