Addition of sonochemical reactor to the solar photocatalytic compound parabolic concentrators system

Seungmin Na; Sanghyun Cho; Seban Lee; Seungkwan Hong; Jeehyeong Khim

doi:10.1143/JJAP.50.07HE14

Addition of sonochemical reactor to the solar photocatalytic compound parabolic concentrators system

Seungmin Na^*
, Sanghyun Cho
, Seban Lee
, Seungkwan Hong
, Jeehyeong Khim

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

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.

Original language	English
Article number	07HE14
Journal	Japanese journal of applied physics
Volume	50
Issue number	7 PART 2
DOIs	https://doi.org/10.1143/JJAP.50.07HE14
Publication status	Published - 2011 Jul

ASJC Scopus subject areas

General Engineering
General Physics and Astronomy

Access to Document

10.1143/JJAP.50.07HE14

Cite this

@article{fb31a5ada61a4d92b7bf4ea63e8ad859,

title = "Addition of sonochemical reactor to the solar photocatalytic compound parabolic concentrators system",

abstract = "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.",

author = "Seungmin Na and Sanghyun Cho and Seban Lee and Seungkwan Hong and Jeehyeong Khim",

year = "2011",

month = jul,

doi = "10.1143/JJAP.50.07HE14",

language = "English",

volume = "50",

journal = "Japanese journal of applied physics",

issn = "0021-4922",

publisher = "Institute of Physics",

number = "7 PART 2",

}

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 - https://www.scopus.com/pages/publications/79960606558

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 -

Addition of sonochemical reactor to the solar photocatalytic compound parabolic concentrators system

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this