Fabrication of highly sensitive 4-Nitrophenol sensor and photocatalytic performance of multifunctional Ba_0.5Sr_0.5Co_xHf_xFe_12-2xO₁₉ Ferrite

I. A. Abdel-Latif^*, Charanjeet Singh^*, Rajat Joshi^*, Jasbir Singh, A. Gismelssed, M. M. Alam, L. A. Al-Hajji, Adel A. Ismail, M. Faisal, Abdullah M. Asiri, I. Z. Al-Yahmadi, Faten Bzour, M. T.Z. Myint, Mohammed M. Rahman^*