TY - JOUR
T1 - Addition of sonochemical reactor to the solar photocatalytic compound parabolic concentrators system
AU - Na, Seungmin
AU - Cho, Sanghyun
AU - Lee, Seban
AU - Hong, Seungkwan
AU - Khim, Jeehyeong
PY - 2011/7
Y1 - 2011/7
N2 - Chloroform was treated with ultrasound at 35 and 283 kHz in a compound parabolic concentrators (CPCs) system to assess the applicability of ultrasound as a supporting process of solar-photocatalysis and verify the enhancement of ultrasound combined solar-photocatalysis. Chloroform was degraded by 22.5% in the Solar/TiO2 process over a 200 min period. At an ultrasound frequency of 283 kHz, chloroform was degraded by 52.6% (Sono), 47.0% (Sono/TiO2) and 64.4% (Sono/Solar/TiO2). On the other hand, at 35kHz, chloroform was degraded by 49.0% (Sono), 46.1% (Sono/TiO 2) and 80.0% (Sono/Solar/TiO2). Ultrasound at 35kHz was more effective for degrading chloroform in the Sono/Solar/TiO2 process than 283 kHz. The rate of hydrogen peroxide formation, particle size and specific surface area of TiO2 were measured to determine why 35 kHz is more effective than 283 kHz.
AB - Chloroform was treated with ultrasound at 35 and 283 kHz in a compound parabolic concentrators (CPCs) system to assess the applicability of ultrasound as a supporting process of solar-photocatalysis and verify the enhancement of ultrasound combined solar-photocatalysis. Chloroform was degraded by 22.5% in the Solar/TiO2 process over a 200 min period. At an ultrasound frequency of 283 kHz, chloroform was degraded by 52.6% (Sono), 47.0% (Sono/TiO2) and 64.4% (Sono/Solar/TiO2). On the other hand, at 35kHz, chloroform was degraded by 49.0% (Sono), 46.1% (Sono/TiO 2) and 80.0% (Sono/Solar/TiO2). Ultrasound at 35kHz was more effective for degrading chloroform in the Sono/Solar/TiO2 process than 283 kHz. The rate of hydrogen peroxide formation, particle size and specific surface area of TiO2 were measured to determine why 35 kHz is more effective than 283 kHz.
UR - http://www.scopus.com/inward/record.url?scp=79960606558&partnerID=8YFLogxK
U2 - 10.1143/JJAP.50.07HE14
DO - 10.1143/JJAP.50.07HE14
M3 - Article
AN - SCOPUS:79960606558
SN - 0021-4922
VL - 50
JO - Japanese journal of applied physics
JF - Japanese journal of applied physics
IS - 7 PART 2
M1 - 07HE14
ER -