One-step co-precipitation synthesis of novel BiOCl/CeO2 composites with enhanced photodegradation of rhodamine B,Inorganic Chemistry Frontiers

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One-step co-precipitation synthesis of novel BiOCl/CeO2 composites with enhanced photodegradation of rhodamine B
Inorganic Chemistry Frontiers ( IF 6.1 ) Pub Date : 2020/02/06 , DOI: 10.1039/c9qi01524h
Yu Zhang _{1,

2,

3,

4} , Qian Shao _{1,

2,

3,

4} , Heyun Jiang _{1,

2,

3,

4} , Lirong Liu _{1,

2,

3,

4} , Mingyang Wu _{1,

2,

3,

4} , Jing Lin _{5,

6,

7,

8} , Jiaoxia Zhang _{4,

9,

10,

11,

12} , Shide Wu _{4,

13,

14,

15} , Mengyao Dong _{15,

16,

17,

18,

19} , Zhanhu Guo _{12,

20,

21,

22,

23}

Affiliation

College of Chemical and Environmental Engineering
Shandong University of Science and Technology
Qingdao 266590
China
School of Chemistry and Chemical Engineering
Guangzhou University
Guangzhou
510006 China
School of Materials Science and Engineering
Jiangsu University of Science and Technology
Zhenjiang 212003
Integrated Composites Laboratory (ICL)
Henan Provincial Key Laboratory of Surface and Interface Science
Zhengzhou University of Light Industry
Zhengzhou
Key Laboratory of Materials Processing and Mold (Zhengzhou University)
Ministry of Education
National Engineering Research Center for Advanced Polymer Processing Technology
Zhengzhou University
Department of Chemical & Biomolecular Engineering
University of Tennessee
Knoxville
USA

Bismuth oxychloride (BiOCl) and cerium dioxide (CeO₂) composites were successfully synthesized via a facile one-step co-precipitation method. The BiOCl/CeO₂ composites were observed to be sheet-like structures with some CeO₂ nanoparticles distributed on the surface. The BiOCl/CeO₂ composites exhibited higher photodegradation performance (98.8%) of rhodamine B (RhB) than pure BiOCl (80.2%) and CeO₂ (9.6%) under solar simulated irradiation. The BiOCl/CeO₂ composites with a Bi/Ce molar ratio of 4 : 1 exhibited the highest photocatalytic performance for RhB, and an optimal RhB degradation efficiency of 98.8% was achieved under solar simulated irradiation for 60 min. The photocatalytic performance results were compared with other BiOCl composites. The photocatalytic mechanisms of BiOCl/CeO₂ composites were discussed by radical trapping experiments and electron spin resonance (ESR), which indicated that h⁺ and ˙O₂⁻ were the dominant radicals for RhB degradation.

中文翻译：

罗丹明B光降解增强的新型BiOCl / CeO2复合材料的一步共沉淀合成

通过一种简便的一步共沉淀方法成功地合成了三氯氧化铋（BiOCl）和二氧化铈（CeO ₂）复合材料。观察到BiOCl / CeO ₂复合材料为片状结构，表面上分布有一些CeO ₂纳米颗粒。在太阳模拟照射下，BiOCl / CeO ₂复合材料比纯BiOCl（80.2％）和CeO ₂（9.6％）具有更高的罗丹明B（RhB）光降解性能（98.8％）。BiOCl / CeO ₂Bi / Ce摩尔比为4：1的复合材料对RhB表现出最高的光催化性能，在太阳模拟照射下60分钟，RhB的最佳降解效率达到98.8％。将光催化性能结果与其他BiOCl复合材料进行了比较。的BiOCl /铈的光催化机理₂复合材料通过自由基捕获实验和电子自旋共振（ESR），这表明使得h讨论⁺和O ₂^-分别为罗丹明B降解的主要基团。

更新日期：2020-03-19

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