Why is methylene blue a significant environmental concern in water pollution?

Label:chem

Topic
Methylene blue is a synthetic dye widely used in various industries, including textile, chemical, and biological sectors. Its presence in wastewater is a significant environmental concern due to its known toxicity and harmful effects on aquatic ecosystems and human health.
Answer
A geopolymer composite, synthesized from laterite and recycled beer bottle glass, was developed and optimized for the adsorption of methylene blue from aqueous solutions. The optimal synthesis conditions achieved a high methylene blue index of 74.87 mg/g. Batch adsorption experiments demonstrated a maximum methylene blue adsorption capacity of 12.63 mg/g, aligning with the Langmuir isotherm and pseudo-second-order kinetic model, which suggests monolayer chemisorption. This indicates the geopolymer's potential as an efficient and sustainable adsorbent for dye removal.
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