This research aims to examine the effect of impelentation of big data analytics, the size of the public accounting firm and audit opinion on audit delays in banking, telecommunications and transportation sub-sector companies listed on the Indonesia Stock Exchange for the period 2016 - 2021. The type of data used in this research is secondary data obtained from the company website or the Indones…
Research has been carried out on the synthesis of CuFe2O4/SiO2/NiO composites and its application on photocatalytic degradation of congo red dye. CuFe2O4 was synthesized using coprecipitation method, CuFe2O4/SiO2 by sol-gel method, and CuFe2O4/SiO2/NiO by hydrothermal method. The resulting CuFe2O4, CuFe2O4/SiO2, and CuFe2O4/SiO2/NiO were characterized using XRD, SEM-EDS, VSM, and UV-Vis DRS. Th…