Adsorption Study of Methylene Blue and Methyl Orange Using Green Shell (Perna Viridis)

Abstract

Green shell is generally disposed of and become environmental contaminants. In this study, the green shell was used as material to adsorb dyes residue: methylene blue and methyl oranges. Green shell waste from seafood was prepared by removing the dirt then dried at room temperature. It was followed by roughly crushing before being placed in the furnace at temperatures of 300, 500, 700 and 900 °C. The selected adsorbents were sieved at 200 mesh. The adsorbents were characterized by FTIR and SEM-EDX to evaluate their functional groups and morphology. Furthermore, the adsorption process was evaluated by determining the kinetic adsorption models. The results of the FTIR characterization showed the vibration of Ca(OH)2 bone at a wave number of 3400 cm-1 and morphological analysis by SEM showed a homogeneous surface. Adsorption kinetics results obtained from the variation of time with the initial adsorbate concentration showed the kinetic model of both methylene blue and methyl orange adsorption onto the adsorbent followed a pseudo-second order.

Upcycling of sugar refining mud solid waste as a novel adsorbent for removing methylene blue and Congo red from wastewater

“…4 and Table 1 suggest that pseudo-second-order models most accurately characterized the kinetics of the adsorption for both MB and CR. The hypothesis of linearized and non-linearized forms of pseudo-second order are consistent with other studies 72,73 and are endorsed by the strong correlation values of 0.999 and 0.983 for the adsorption of MB as well as 0.999 and 0.987 for the adsorption of CR, respectively onto the MSW. The adsorption capacities Q e2 of the MSW for MB and CR dyes are 20.4 and 19.8 mg g −1 , for both linearized and non-linearized forms being in line with experimental values of 19.4 and 18.1 mg g −1 respectively.…”

Khả năng hấp phụ Methyl Orange trong dung dịch bởi hạt gel chitosan được chiết xuất từ vỏ tôm sú Penaeus monodon

“…Mô hình động học hấp phụ được sử dụng để xác định tốc độ hấp phụ bị ảnh hưởng bởi thời gian (Febi et al, 2020). Động học hấp phụ của MO trên chitosan được mô phỏng theo mô hình động học biểu kiến bậc một và bậc hai ở dạng phi tuyến tính.…”

Size Selectivity of Anionic and Cationic Dyes Using LDH Modified Adsorbent with Low-Cost Rambutan Peel to Hydrochar

“…However, its disposal directly into the environment will have a negative effect on both aquatic life and humans. This is because dyes are mutagenic, carcinogenic, and toxic/poisonous [2]. Water contamination by various organics discharged from industry into the environment has recently become dyes [10].…”