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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.9
- 수록면
- 255 - 259 (5page)
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초록· 키워드
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In this research, we compared the COD removal efficiencies of titanium dioxide (TiO₂) thin films coated on the surfaces of borosilicate glass that prepared by three different numbers of coating layer; i) 3 layers ii) 4 layers and iii) 5 layers by sol-gel method. All of the prepared TiO₂ thin films consisted of pure anatase crystalline structure with grain sizes in the range 20-250 nm. The calculated optical band gaps of the TiO₂ thin films were 3.24. The total apparent surface area per total weight of TiO₂ thin films were 4.74, 3.86 and 2.79 m2 g－1 for 3, 4 and 5 layers coating, respectively. The kinetics of the photodegradation reactions of COD under UVA light source were described by the Langmuir-Hinshelwood (L-H) kinetic model. The specific rates of the photodegradation of TiO₂ thin films at 3 layers coating was 1.40×10－4 min－1 mW－1, while for the 4 layers coating and the 5 layers coating were 1.50×10－4 and 4.60×10－4 min－1 mW－1, respectively. The photocatalytic performance of COD degradation was higher with smaller grain size, higher surface area and narrow optical band gaps. Moreover, the numbers of coating layer on substrate also have great influence for kinetic of COD removal.
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참고문헌 (33)
참고문헌 신청
1. [학술지(정기간행물)] - Zhao N / 2009 / Regional industrial production's spatial distribution and water pollution control: A plant-level aggregation method for the case of a small region in China / Sci. Total Environ 407 : 4946 ~ 4953
2. [학술지(정기간행물)] - Hu Y / 2013 / Water pollution during China's industrial transition / Environmental Development 8 : 57 ~ 73
3. [학술지(정기간행물)] - Hegazi HA / 2013 / Removal of heavy metals from wastewater using agricultural and industrial wastes as adsorbents / HBRC Journal 9 : 276 ~ 282
4. [학술지(정기간행물)] - Dvořák L / 2014 / Removal of aniline, cyanides and diphenylguanidine from industrial wastewater using a full-scale moving bed biofilm reactor / Process Biochem 49 : 102 ~ 109
5. [학술지(정기간행물)] - Barrera-Díaz C / 2014 / Removal of organic pollutants in industrial wastewater with an integrated system of copper electrocoagulation and electrogenerated H2O2 / Chemosphere 105 : 160 ~ 164
2. [학술지(정기간행물)] - Hu Y / 2013 / Water pollution during China's industrial transition / Environmental Development 8 : 57 ~ 73
3. [학술지(정기간행물)] - Hegazi HA / 2013 / Removal of heavy metals from wastewater using agricultural and industrial wastes as adsorbents / HBRC Journal 9 : 276 ~ 282
4. [학술지(정기간행물)] - Dvořák L / 2014 / Removal of aniline, cyanides and diphenylguanidine from industrial wastewater using a full-scale moving bed biofilm reactor / Process Biochem 49 : 102 ~ 109
5. [학술지(정기간행물)] - Barrera-Díaz C / 2014 / Removal of organic pollutants in industrial wastewater with an integrated system of copper electrocoagulation and electrogenerated H2O2 / Chemosphere 105 : 160 ~ 164
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UCI(KEPA) : I410-ECN-0101-2017-539-001539194