Assessing The Photocatalytic Activity of Zno/Ha Composites Obtained Through an Advanced Mechano-Chemical Grinding MethodFlorina-Diana Gheorghe, Larisa-Mădălina Ştefan, Cristina Dumitrescu, M. Matei, M. Boboc and Nur Liza RahimE3S Web Conf., 589 (2024) 03006DOI: https://doi.org/10.1051/e3sconf/202458903006