Sintesis dan Karakterisasi Nano Zno Doping Cu

The photodegradation process is a combination of photochemical processes with
catalysts which are generally semiconductor materials. One of the photocatalysts that is being
developed is zinc oxide (ZnO) in nanometer size to optimize the degradation process of organic
compounds. Synthesis Nano zinc oxide (ZnO) can use the sol-gel method, the sol-gel method is the
best method in making nanoparticles that produce uniform size and high purity. XRD (X-Ray
Diffraction) test results show the size of Nano zinc oxide (ZnO) which is 26-30 nm. Nano zinc oxide
(ZnO) has a band band 3.37 eV so that it is less suitable to be applied to visible light. Therefore it is
necessary to do coupling with other metals such as Cu. The results of Nano zinc oxide (ZnO) doped
Cu 7% have a low band gap of 2.57 eV so that it is easy to excite valence band electrons to the
conduction band.