Publications by authors named "Lijia Qiu"
Dimethoate is a toxic organophosphorus insecticide and its contamination of water poses a threat to the surrounding ecosystem. In order to enhance the removal effect of ferrate (Fe(VI)) on dimethoate, modified graphene-like biochar (SIZBC) with reduction and adsorption properties was prepared in this study. Compared with Fe(VI) alone, the removal of dimethoate by Fe(VI)/SIZBC increased from 26 % to more than 97 %, and the reaction rate was accelerated by 34 times.
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- The study created graphene-like biochar (IZBC) from wheat straw using pyrolysis, identifying three key stages in graphene formation: shell core generation, carburization, and carbon precipitation, highlighting different graphene yield percentages at varying temperatures.
- At temperatures between 500-900 ℃, the highest graphene production was observed at 800-900 ℃ (38%), with iron chloride (FeCl) being the most effective catalyst contributing to 64% of the total graphene.
- IZBC demonstrated a high adsorption capacity for dimethoate (980 μmol/g) through mechanisms like pore filling and electrostatic attraction, although this process was negatively affected by the presence of other ions and humic acid, and