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C3N4 modified with single layer ZIF67 nanoparticles for efficient photocatalytic degradation of organic pollutants under visible light
Su, Peidong; Zhang, Junke; Xiao, Ke; Zhao, Shen; Djellabi, Ridha; Li, Xuewei; Yang, Bo; Zhao, Xu
2020-12
Source PublicationCHINESE JOURNAL OF CATALYSIS
ISSN0253-9837
Volume41Issue:12Pages:1894-1905
AbstractUniformly distributed single layer of ZIF67-derived C3N4 (ZIF67-C3N4) was synthesized and applied to the photocatalytic degradation of methylene blue (MB) under visible light. Results indicated that the obtained ZIF67-C3N4 has a maximum specific surface area of 541.392 m(2)/g, which is much larger than that of raw C3N4 of 97.291 m(2)/g. The investigation of C3N4 amount involved in ZIF67-C3N4 on the photoactivity revealed that 2.57 g ZIF67 with 0.3 g C3N4, which named ZIF67-C3N4(0.3) exhibited superior photocatalytic activities. More than 90% of MB at 10 mg/L was degraded within 70 min with the addition of 0.01 g ZIF67-C3N4(0.3), while this time required for raw C3N4 was over 140 min. The effects of pH of solution, initial concentration of MB and dosage of C3N4 in ZIF67-C3N4 composites on the photocatalytic efficiency for MB degradation were also evaluated. Quenching experiments indicated that the photo-induced holes (h+) and superoxide radicals (O2-center dot) were mainly responsible for MB degradation. It is anticipated that the insertion of ZIF67 nanoparticles not only increases the adsorption capacity of C3N4 but also promotes the generation and migration of the photo-induced active species. (C) 2020, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
Department中国科学院饮用水科学与技术重点实验室
KeywordMetal organic frameworks Photocatalysis C3N4 ZIF67 Visible light
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/45246
Collection中国科学院饮用水科学与技术重点实验室
Recommended Citation
GB/T 7714
Su, Peidong,Zhang, Junke,Xiao, Ke,et al. C3N4 modified with single layer ZIF67 nanoparticles for efficient photocatalytic degradation of organic pollutants under visible light[J]. CHINESE JOURNAL OF CATALYSIS,2020,41(12):1894-1905.
APA Su, Peidong.,Zhang, Junke.,Xiao, Ke.,Zhao, Shen.,Djellabi, Ridha.,...&Zhao, Xu.(2020).C3N4 modified with single layer ZIF67 nanoparticles for efficient photocatalytic degradation of organic pollutants under visible light.CHINESE JOURNAL OF CATALYSIS,41(12),1894-1905.
MLA Su, Peidong,et al."C3N4 modified with single layer ZIF67 nanoparticles for efficient photocatalytic degradation of organic pollutants under visible light".CHINESE JOURNAL OF CATALYSIS 41.12(2020):1894-1905.
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