Platinum(II) reduction to platinum nanoparticles in anaerobic sludge.

ABSTRACT:

Background

To help mitigate future problems in the supply of platinum group metals (PGM) due to their scarcity and high demand, new recovery processes must be developed. Microbial processes are a great alternative for the recovery of PGM from waste since they are clean and environmentally friendly techniques. This research studied the microbial reduction of Pt(II) using an anaerobic granular sludge under different physiological conditions.

Results

The anaerobic granular sludge was able to reduce Pt(II) to Pt(0) nanoparticles that were deposited intracellularly as well as extracellularly as confirmed by X-ray diffraction (XRD) and transmission electron microscopy (TEM) analyses. Hydrogen (H₂) and formate supported the chemical reduction of Pt(II) while ethanol supp

SUBMITTER: Simon-Pascual A 

PROVIDER: S-EPMC6521854 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature