The Quick Removal of Toxic Dye Molecules by an Efficient Adsorptive BiOI/Bi2MoO6 Heterostructure

Adsorption is a low-energy, economical, and efficient method for pollutant removal from water. Because of their unique structure, large specific surface area (SSA), non-toxicity, bismuth-based semiconductors, usually researched the photodegradation organic molecules, are also excellent dark adsorption processes. Here, three-dimensional adsorbent with heterostructure hydrangea-like shape made Bi2MoO6 (BMO) BiOI (BOI) was synthesized by one-pot solvothermal process investigated toxic dyes. BOI/BMO an I-to-Mo ratio 2.0 adsorbed 98.9% model rhodamine B (RhB) within 5 min maximum capacity 72.72 mg/g in at room temperature. When compared to pure BMO, BOI2/BMO 14.1 times more performant because its flower-like morphology multiple planes, SSA that 1.6-fold larger, increased porosity, formation heterojunctions, negative charge attracting RhB. Further investigation indicated fitted pseudo-second-order kinetic Langmuir isotherm models. In addition, thermodynamic analysis showed it spontaneous exothermic probably relying on physisorption. Thus, developed here promising fast dyes industrial wastewater.