ar0005">Rice husks as a sustainable silica source for hierarchical flower-like metal silicate.
ar0010">The interconnected ultrathin nanosheets structure and high specific surface area.
ar0015">The maximum adsorption capacity of magnesium silicate is 557.9 mg/g for Pb2+.
ar0020">Ni NPs/SiO2 exhibited high catalytic activity and good stability for 4-NP reduction within only ∼160 s.