In this study, lignin was isolated from rice (Oryza sativa L.) husk using alkaline extraction method and used as an adsorbent for aqueous solutions of methyl orange (MO) bromothymol blue (BTB). The equilibrium removal rate MO found to be at 61.4%, with experimental adsorbate uptake, qe, 1.23 mg·g-1, achieved 150 minutes contact time. For BTB, the 78.3%, qe 1.57 Pseudo-first order (PFO) pseudo-s...

We study the aggregation phenomenon in lyotropic chromonic liquid crystals as molecular concentration changes and condensing agents are added into system. Using properties of critical points Oseen-Frank energy a nematic crystal, combined with geometric constraints hexagonal columnar phases, we show that minimizers total topologically equivalent to tori, agreement available experimental evidence...

The simplified gravimetric intermittent titration technique (GITT) model, which was first proposed by Weppner and Huggins in 1977, remains a popular method to determine the solid-state diffusion coefficient (D1) electrochemical kinetic rate constant (k). This is despite model having been developed on premise of single-slab electrode other gross simplification are not applicable modern-day porou...