Modification zeolite LTA/TiO2-N for degradation of methylene blue dye waste

Methylene blue is widely used in industry because it has good solubility. However, it is difficult to degrade, resistant, and toxic. If the waste is immediately disposed of in the water, it can cause environmental pollution. This research aims to create a photocatalytic adsorbent of TiO2-N modified zeolite LTA at various nitrogen (N) dopant concentrations to degrade methylene blue waste. Nitrogen dopants were added to TiO2 at different N concentrations, 5, 7, and 9 percent taken from Urea [CO(NH2)2], before TiO2−N was impregnated into zeolite LTA and calcined at 500 temperature for 5 hours. Furthermore, the performance of zeolite LTA/TiO2−N on methylene blue photodegradation was tested. Methylene blue waste photodegradation was tested in batches for 60 minutes at room temperature and atmospheric pressure with stirring. X-ray diffraction (XRD), Fourier transmission infrared (FTIR), scanning electron microscopy (SEM), Brunauer, Emmet, and Teller (BET), and UV-vis spectrometer instrument DRS was used to characterize the LTA/TiO2-N zeolite. Based on the results of XRD analysis, it is known that LTA/TiO2−N zeolite crystals have formed and that the relative crystallinity of LTA/TiO2-N zeolite has decreased. The appearance of Ti-N-Ti bonding groups in the FTIR results indicates the formation of an LTA/TiO2-N zeolite. The SEM results revealed that the morphology of LTA and LTA/TiO2−N zeolite differed. According to the BET results, LTA/TiO2−N zeolite has a higher surface area, total pore volume, and average pore size than LTA zeolite. The UV-vis spectrophotometer results revealed that the energy band gap of LTA/TiO2-N zeolite was 1.55 eV, and the photodegradation performance test of methylene blue yielded the highest removal percentage of 96.655 % on 7% LTA/TiO2-N zeolite.