화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.83, 200-207, March, 2020
DOI10.1016/j.jiec.2019.11.028  Export Citation
Synthesis and characterizations of BiOCl nanosheets with controlled particle growth for efficient organic dyes degradation
Kedir Ebrahim Ahmed1, 2, Dong-Hau Kuo1, †, and Lalisa Wakjira Duresa1
  • 1Department of Materials Science and Engineering, National Taiwan University of Science and Technology, No. 43, Sec. 4, Keelung Road, Taipei 10607, Taiwan
  • 2Department of Chemistry, Jigjiga University, Jijiga, Ethiopia
E-mail:
In this report, we considered the control of electron-hole separation, oxygen vacancy formation, particle size, and morphology together is supposed to boost the catalytic activity of the materials. Hence, BiOCl photocatalysts were synthesized by a systematic control of particle growth along reactive (001) plane using simple hydrolysis method in KCl saturated aqueous solution with simultaneous UV light treatment. The materials were characterized using different techniques and the photocatalytic activities were evaluated for degradation of different kinds of organic dyes. 20-BiOCl prepared with 20 mmol KCl showed 99.9% RhB degradation within 10 min of visible light irradiation. From kinetics data, 20-BiOCl showed 7 and 3 times higher rates on RhB dye degradation than untreated 20-BiOCl and unsaturated 5-BiOCl, respectively. Furthermore, 20-BiOCl catalyst also exhibited almost complete degradation of RhB, MO, and MB dyes under UV light irradiation. Supper oxide (O2. ) and hydroxyl ( OH) radicals are identified as the main active species on the degradation of RhB dye under visible light irradiation. Both KCl saturation and UV light treatment during synthesis of BiOCl catalysts play a crucial role to the extraordinary photocatlytic activities.
Keywords:BiOCl;Photocatalyst;UV light treatment;Particle growth;RhB degradation
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