Scanning electrochemical microscopy (SECM) as a new approach for measuring photomineralization kinetics at an illuminated titanium dioxide film

摘要

Scanning electrochemical microscopy (SECM) technique has been developed as a new approach to investigate the kinetics of interfacial photo electrochemical processes at the microscopic level.This system employed a finely polished and smooth quartz fiber of 250 mum diameter,which guides the light flux to sensitize a thin film of TiO_2 (deposited on to the polished fiber surface from a 13.0 % colloidal slurry of TiO_2) by back-illumination.