An Nd doped ZnO (1-5%) photocatalyst was successfully synthesized via chemical co-precipitation method. The optical property, nature, and morphology of the synthesized nanoparticles were analyzed by UV-Visible, XRD, and FESEM respectively. XRD study reveals that Nd has been effectively incorporated in the ZnO lattice in the lower level dosage; however the crystalline nature has been distorted towards the increase in the Nd. The selected brilliant green dye was degraded photo-catalytically with the help of the synthesized nanoparticles and the study has been extended with catalyst dosage and dye concentration. The 2% Nd-doped ZnO showed a remarkable result of 98.26% degradation of brilliant green dye compared to the other 1, 3, 4 & 5 %Nddoped ZnO nanoparticles which clearly indicates the optimization of depletion region corresponding to the maximum degradation. The increased content (3-5%) of Nd-doped ZnO exhibited moderate photocatalytic degradation of the dye due to the decreased crystalline nature which was further evidenced from XRD studies.

Brilliant blue is largely found in ice cream, canned processed peas, packet soups, blue raspberry flavored products, dairy products, sweets and drinks. It is also used in soaps, shampoos, mouthwash and other hygiene and cosmetics applications (Archived from Florida). This study was aimed to investigate the antimicrobial effects of Brilliant blue on Bacillus subtilis as a gram positive bacterial strain and Pseudomonas aeruginosa as a gram negative bacterial strain with MIC, MBC, and disk diffusion assay. MIC values of Brilliant blue against Bacillus subtilis was 5μ g/ml, and MBC values was 60 μ g/ml and MIC values of Brilliant blue against Pseudomonas aeruginosa are 10 μ g/ml, and MBC values was 80  g/ mL. In this study Brilliant blue had only a bacteriostatic effect on two bacterial strains. The result of disk diffusion assay showed that Brilliant blue (0. 625, 1. 25, and 1. 875 μ g) has not antimicrobial activity against Bacillus subtilis and Pseudomonas aeruginosa. It can be concluded that Brilliant blue might not pose a potential risk for our bacterial flora. However, it must be evaluated with different new studies.

Brilliant blue 0.05% and trypan blue 0.1% were mixed in a proportion of 1:1 in a 1-mL syringe. This combination produced a waterfall effect with the fast sinking of the dye to the posterior pole and little diffusion through the vitreous cavity. Therefore, it can effectively stain the internal limiting membrane and the epiretinal membrane with a good contrast during surgeries for a macular hole, myopic foveoschisis, and macular pucker.

The modification of carbon from Nut shell was done via carbonization at 500 °C and activated under acidic conditions with H3PO4. Thus, Nutshell (NS) and chemically activated carbon utilizing acid H3PO4, the biochar surface will be referred to as NS-H3P will exhibit comparable capacity in removing BB dye compared to commercial activated carbon (CAC). The NS-H3P adsorbent has been characterized by field emission scanning electron microscope (FESEM), energy-dispersive X-ray spectroscopy (EDX), and transmission electron microscope (TEM). Effect of several factors like equilibrium time (5-60 min), the weight of adsorbent (0.01-0.08 g), the concentration of dye (10 -50 mg/L), pH solution (2.8-10.3), and solution of temperature (10-45 oC) were investigated. The equilibrium result tends to fit best with isotherm Freundlich than isotherm Langmuir. The isotherm Freundlich model with a high R2 was utilized to describe multi-layer adsorption. Desorption of dye studies was performed with NaOH, HCl, and H2O. Computational modeling was performed to obtain deeper mechanistic insights on the adsorption behavior of the BB dye molecules onto (002) sheet of Biochar. This modeling section includes Monte Carlo space exploration for the lowest adsorption energy configurations of the BB dye molecule on the Biochar surface. The process included an adsorption locator calculations module.

Titan Yellow and Brilliant Green dyes were adsorbing to cement kiln dust (CKD) in this work by adjusting factors including contact time, dye concentration, adsorbent dose, pH, and different temperatures at (25, 35, 45, and 55 °C) and isotherms of adsorption. Freundlich, Langmuir, and Temkin adsorption isotherm equations were all examined. Between the Langmuir and Temkin isotherms, the equilibrium adsorption data were fitted Thermodynamic parameters ΔG, ΔH, and ΔS were calculated and the results indicated that the adsorption process on CKD was exothermic and non-spontaneous in Brilliant dye, but endothermic and spontaneous in Titan Yellow. It was also observed that adsorption was height at pH=2 for Titan dye and height at pH=8 for Brilliant dye.