Ultrasound-Assisted Preparation of Semiconductor/Polymer Photoanodes and Their Photoelectrochemical Properties

作者：Sonawane Shirish; Neppolian Bernaudshaw; Teo Boon; Grieser Franz; Ashokkumar Muthupandian^*

来源：Journal of Physical Chemistry C, 2010, 114(11): 5148-5153.

DOI：10.1021/jp100154t

Metal oxide-loaded poly(butylmethacrylate) films were sonochemically prepared and used as photoanodes in photoelectrochemical cells. A small quantity of polyaniline was added during the latex synthesis to facilitate the transport of charge carriers. The semiconductor metal oxides used in this Study were ZnO, TiO2, and Bi2O3/ZrTiO4. The performance of the photoanodes was evaluated by measuring the short-circuit current (I-sc) and open-circuit potential (V-oc) in four different electrolytes. It was found that photocurrents generated were directly proportional to the amount of metal oxide loading, whereas a decrease in photocurrent was observed with an increase in the thickness of the latex film. At 0.4 g loading, Bi2O3/ZrTiO4 latex showed the highest photocurrent of 0.9 mu A/cm(2) in aqueous formic acid Solution. Oil (lie basis of the photocurrents generated, the performance of the three different oxide films is its follows: Bi2O3/ZrTiO4 > ZnO > TiO2.

• 出版日期2010-3-25