화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.107, 472-482, March, 2022
DOI10.1016/j.jiec.2021.12.021  Export Citation
Visible-light driven efficient elimination of organic hazardous and Cr (VI) over BiOCl modified by Chinese Baijiu distillers’ grain-based biochar
Xingyun Jin1, Xiaolong Tang1, Huan Li1, Xiaoqian Tang1, Jianzhang Li1, Junbo Zhong1, 2, †, Shulin Zhang2, †, and Dongge Ma3
  • 1Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan, Sichuan University of Science and Engineering, Zigong 643000, PR China
  • 2College of Chemical Engineering, Sichuan University of Science and Engineering, Zigong 643000, PR China
  • 3Department of Chemistry, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, PR China
E-mail:,
In this paper, distillers’ grains biochar (DGBC) was facilely gained by processing the distillers’ grains produced in Chinese Baijiu brewing, and the DGBC was used to modify BiOCl. The prepared DGBC/BiOCl composite photocatalysts show elevated visible light-driven catalytic performance. X-ray diffraction (XRD) and scanning electron microscope (SEM) suggest the presence of DGBC affects the crystal growth and microscopic morphology of BiOCl. The low-temperature electron paramagnetic resonance (EPR) test affirms more oxygen vacancies (OVs) exist in the DGBC/BiOCl composite photocatalysts. The 0.75-DGBC/BOC photocatalyst holds the highest efficiency for removal of rhodamine B (RhB), tetracycline (TC) and Cr (VI) compared with BiOCl, commercial TiO2 (P25) and other DGBC/BiOCl composites. Given the experimental results, the enhanced visible light responsive performance originates from the rich OVs introduced by the modification of BiOCl with DGBC and the higher separation rate of photoexcited carriers.
Keywords:BiOCl;Distillers’ grains biochar;Photoactivity;Surface modification;Surface defects
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