Carbon-coated Mn_xZn_(1-x)Fe_2O_4 as a magnetic substrate for Zn_(0.8)Cd_(0.2)S applied in photocatalytic rhodamine B

Jiang Zao; Hao Yu; Wu Tingzeng; Xu Longjun; Liu Chenglun; Liu Xueyan

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Carbon-coated Mn_xZn_(1-x)Fe_2O_4 as a magnetic substrate for Zn_(0.8)Cd_(0.2)S applied in photocatalytic rhodamine B

机译：碳涂覆的Mn_xZn_（1-x）Fe_2O_4作为施用在光催化罗丹明B中的Zn_（0.8）CD_（0.2）S的磁性基板。

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In this work, a novel MnxZn1-xFe2O4/C/Zn0.8Cd0.2S (ZCMC) magnetic composite photocatalyst used carbon coated MnxZn1-xFe2O4 as a magnetic substrate is fabricated successfully via a facile hydrothermal process and chemical precipitation method. The structure characterization and photocatalytic activity of the composite are explored. The results show that the prepared ZCMC samples exhibit excellent photocatalytic ability for rhodamine B (RhB) decomposition in 90 min under simulated sunlight, and the RhB degradation is above 90% when MnxZn1-xFe2O4/C accounts for 5%-25%. Notably, the ZCMC containing 20% magnetic matrix appears remarkable recyclability and stability, and the RhB degradation is higher than 85% within 90 min after five recycles. The outstanding photocatalytic performance for ZCMC is mainly responsible for the larger specific surface area (169.1 m2 g+1) and excellent separation efficiency of photogenerated charge. Furthermore, the trapping experiments disclose that center dot O2 radicals are the dominant active species, followed by center dot OH and h+ during RhB degradation. The possible photocatalytic mechanism for RhB degradation is discussed.commentSuperscript/Subscript Available/comment

机译：在这项工作中，通过容易的水热工艺和化学沉淀法成功地制造了一种新的MNXZN1-XFE2O4 / C / ZN0.8CD0S（ZCMC）磁性复合光催化剂使用的碳涂覆的MNXZN1-XFE2O4。探讨了复合材料的结构表征和光催化活性。结果表明，当MNXZN1-XFE2O4 / C占5％-25％时，制备的ZCMC样品在90分钟内表现出罗丹明B（RHB）分解的优异的光催化能力，在90分钟内，RHB降解高于90％以上。值得注意的是，含有20％磁性基质的ZCMC出现显着的可回收性和稳定性，并且在五次回收后90分钟内的RHB降解高于85％。 ZCMC的出色光催化性能主要负责较大的比表面积（169.1M2g + 1）和光生电电荷的优异分离效率。此外，诱捕实验公开了中心点O2基团是显性活性物质，然后是RHB降解期间的中心点OH和H +。讨论了RHB降解的可能光催化机制。<注释>上标/下标可用

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来源
《Optical Materials》 |2021年第2期|110767.1-110767.9|共9页
作者
Jiang Zao; Hao Yu; Wu Tingzeng; Xu Longjun; Liu Chenglun; Liu Xueyan;
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作者单位

Chongqing Univ State Key Lab Coal Mine Disaster Dynam & Control Chongqing 400044 Peoples R China;

Chongqing Vocat Inst Engn Sch Resources & Secur Chongqing 402260 Peoples R China;

Chongqing Univ State Key Lab Coal Mine Disaster Dynam & Control Chongqing 400044 Peoples R China;

Chongqing Univ State Key Lab Coal Mine Disaster Dynam & Control Chongqing 400044 Peoples R China;

Chongqing Univ State Key Lab Coal Mine Disaster Dynam & Control Chongqing 400044 Peoples R China|Chongqing Univ Coll Chem & Chem Engn Chongqing 400044 Peoples R China;

Chongqing Univ State Key Lab Coal Mine Disaster Dynam & Control Chongqing 400044 Peoples R China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
MnxZn1-xFe2O4; MnxZn1-xFe2O4; C; Zn0; 8Cd0; 2S; Magnetic composite photocatalyst; Photocatalytic activity;

机译：MNXZN1-XFE2O4;MNXZN1-XFE2O4;C;ZN0;8CD0;2S;磁性复合光催化剂;光催化活性;

Carbon-coated Mn_xZn_(1-x)Fe_2O_4 as a magnetic substrate for Zn_(0.8)Cd_(0.2)S applied in photocatalytic rhodamine B

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