Synthesis of Ilmenite Nickel Titanite-Supported Carbon Nanofibers Derived from Polyvinylpyrrolidone as Photocatalyst for H2 Production from Ammonia Borane Photohydrolysis

• DOI: 10.3390/polym15153262
• Publication Date: 2023-07-31T14:00:15Z
• Authors: Ibrahim M. Maafa; Nasser Zouli; Ahmed Abutaleb; Ayman Yousef; Isam Y. Qudsieh; Saleh M. Matar; Abdel Samed M. Adam; M. M. El-Halwany
• Keywords: Ilmenite; Electrospinning; Ammonia Borane

The present study involves the synthesis of photocatalytic composite nanofibers (NFs) comprising ilmenite nickel titanite-supported carbon (NiTiO3/TiO2@CNFs) using an electrospinning process. NFs obtained were utilized in hydrogen (H2) production from photohydrolysis ammonia borane (AB). experimental findings show that with a loading 25 mg had good catalytic performance for H2 generation, producing stoichiometric 11 min 1 mmol AB under visible light at °C and 1000 rpm. increase catalyst load to 50, 75, 100 leads corresponding reduction reaction time 7, 5, 4 min. kinetics investigations suggest rate is directly proportional amount system, adhering first-order rate. Furthermore, it was observed remains unaffected by concentration AB, thereby suggesting zero order. Increasing temperature results decrease duration reaction. estimated activation energy value 35.19 kJ mol-1 obtained. demonstrated remarkable consistent effectiveness throughout five consecutive cycles. possess capacity function as feasible substitute costly catalysts process generation AB.