Bacterial Compatibility/Toxicity of Biogenic Silica (b-SiO2) Nanoparticles Synthesized from Biomass Rice Husk Ash.

ABSTRACT: Biogenic silica (b-SiO2) nanopowders from rice husk ash (RHA) were prepared by chemical method and their bacterial compatibility/toxicity was analyzed. The X-ray diffractometry (XRD) patterns of the b-SiO2 nanopowders indicated an amorphous feature due to the absence of any sharp peaks. Micrographs of the b-SiO2 revealed that sticky RHA synthesized SiO2 nanopowder (S1) had clustered spherical nanoparticles (70 nm diameter), while b-SiO2 nanopowder synthesized from red RHA (S2) and b-SiO2 nanopowder synthesized from brown RHA (S3) were purely spherical (20 nm and 10 nm diameter, respectively). Compared to the S1 (11.36 m2g-1) and S2 (234.93 m2g-1) nanopowders, the S3 nanopowders showed the highest surface area (280.16 m2g-1) due to the small particle size and high porosity. The core level o

SUBMITTER: Sharma SK 

PROVIDER: S-EPMC6835479 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature