Mechanism study on NO removal over the CQDs@MIL-100 (Fe) composite photocatalyst

被引：9
|
作者：
Fan, Xianwei [1 ]
Hu, Haoxuan [1 ]
Qin, Junqi [1 ]
Cao, Xi [1 ]
Zhao, Ran [1 ]
Wang, Dong [1 ]
机构：
[1] Wuhan Textile Univ, Hubei Int Sci & Technol Cooperat, Hubei Key Lab Adv Text Mat & Applicat, Base Intelligent Text Mat & Applicat, Wuhan 430200, Peoples R China
来源：
ENVIRONMENTAL TECHNOLOGY & INNOVATION | 2021年 / 24卷
关键词：
Denitration; MIL-100 (Fe); Photocatalysis; SELECTIVE CATALYTIC-REDUCTION; QUANTUM DOTS; MIL-100(FE); STRATEGY; CO2;
D O I：
10.1016/j.eti.2021.101809
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Novel composite photocatalysts MIL-100 (Fe) modified with carbon quantum dots (CQDs) were prepared via a simple one-step hydrothermal method. The photocatalytic performances were indagated through the gas phase NO removal experiment under visible-light illumination. Compared with the pure MIL-100 (Fe), the CQDs@MIL-100 (Fe) material showed excellent photocatalytic performance, with a maximum of 70% NO removal efficiency. The composite photocatalysts were systematically characterized with SEM, XRD, BET, DRS, PL, and FTIR. The results showed that CQDs were successfully coupled with the MIL-100 (Fe) via the C-O bond. The introduction of CQDs enhanced the utilization of sunlight and photoexcited-charge utilization efficiency, which in turn promoted the conversion of NO to NO3-. (C) 2021 Elsevier B.V. All rights reserved.
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页数：10
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