Synthesis and photocatalytic activity for TiO2 nanoparticles as air purification Adawiya Haider, Riyad Al-Anbari, Ghadah Kadhim and Zainab Jameel MATEC Web Conf., 162 (2018) 05006 Published online: 07 May 2018 DOI: 10.1051/matecconf/201816205006