Enhanced Activation of Peroxymonosulfate via Sulfate Radicals and Singlet Oxygen by SrCoMn1−xO3 Perovskites for the Degradation of Rhodamine B

Penghui Shao; Xiping Yin; Chenyu Yu; Shuai Han; Baohuai Zhao; Kezhi Li; Xiang Li; Zhenyu Yang; Zhiwei Yuan; Qinzhi Shi; Jing Ren; Haiqiang Hu; Kai Cui; Tengfei Li; Jun Jiang

LAPSE:2023.35352

Published Article

LAPSE:2023.35352

Enhanced Activation of Peroxymonosulfate via Sulfate Radicals and Singlet Oxygen by SrCoMn1−xO3 Perovskites for the Degradation of Rhodamine B

Penghui Shao, Xiping Yin, Chenyu Yu, Shuai Han, Baohuai Zhao, Kezhi Li, Xiang Li, Zhenyu Yang, Zhiwei Yuan, Qinzhi Shi, Jing Ren, Haiqiang Hu, Kai Cui, Tengfei Li, Jun Jiang

April 28, 2023

Abstract
Perovskite is of burgeoning interest in catalysis, principally due to such material having high thermal stability, modifiable variability, ferromagnetism, and excellent catalytic performance in peroxomonosulfate (PMS) activation. In this study, the SrCoMn1−xO3 perovskites with different Mn doping were synthesized by a facile sol-gel method for peroxymonosulfate (PMS) activation to degrade Rhodamine B. The obtained SrCo0.5Mn0.5O3 perovskite exhibited the best catalytic efficiency, as Rhodamine B (40 mg/L) was removed completely within 30 min. In the system of SrCo0.5Mn0.5O3−PMS, several reactive species were produced, among which sulfate radicals and the singlet oxygen mainly contributed to Rhodamine B degradation. The relatively high catalytic performance could be attributed to the coupled redox cycle between Mn and Co, and the abundant oxygen vacancies. Moreover, the SrCo0.5Mn0.5O3 catalyst showed excellent stability and reusability, maintaining a high catalytic activity after several cycling tests. This study demonstrated that the Mn doping of SrCoO3 could not only enhance the B-site activation in SrCo0.5Mn0.5O3 but also enrich the oxygen vacancies, thus improving the efficiency of PMS activation.

Record ID

LAPSE:2023.35352

Keywords

degradation of RhB, oxygen vacancy, perovskite, PMS, wastewater treatment

Subject

Environment

Suggested Citation

Shao P, Yin X, Yu C, Han S, Zhao B, Li K, Li X, Yang Z, Yuan Z, Shi Q, Ren J, Hu H, Cui K, Li T, Jiang J. Enhanced Activation of Peroxymonosulfate via Sulfate Radicals and Singlet Oxygen by SrCoMn1−xO3 Perovskites for the Degradation of Rhodamine B. (2023). LAPSE:2023.35352

Author Affiliations

Shao P: College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin 300457, China; Institute of Engineering Technology, Sinopec Catalyst Co., Ltd., Beijing 100029, China
Yin X: Institute of Engineering Technology, Sinopec Catalyst Co., Ltd., Beijing 100029, China
Yu C: Institute of Engineering Technology, Sinopec Catalyst Co., Ltd., Beijing 100029, China
Han S: Institute of Engineering Technology, Sinopec Catalyst Co., Ltd., Beijing 100029, China
Zhao B: Institute of Engineering Technology, Sinopec Catalyst Co., Ltd., Beijing 100029, China
Li K: Institute of Engineering Technology, Sinopec Catalyst Co., Ltd., Beijing 100029, China [ORCID]
Li X: College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin 300457, China
Yang Z: Institute of Engineering Technology, Sinopec Catalyst Co., Ltd., Beijing 100029, China
Yuan Z: Institute of Engineering Technology, Sinopec Catalyst Co., Ltd., Beijing 100029, China
Shi Q: Institute of Engineering Technology, Sinopec Catalyst Co., Ltd., Beijing 100029, China
Ren J: Institute of Engineering Technology, Sinopec Catalyst Co., Ltd., Beijing 100029, China
Hu H: Institute of Engineering Technology, Sinopec Catalyst Co., Ltd., Beijing 100029, China
Cui K: Institute of Engineering Technology, Sinopec Catalyst Co., Ltd., Beijing 100029, China
Li T: Institute of Engineering Technology, Sinopec Catalyst Co., Ltd., Beijing 100029, China
Jiang J: Institute of Engineering Technology, Sinopec Catalyst Co., Ltd., Beijing 100029, China

Journal Name

Processes

Volume

11

Issue

4

First Page

1279

Year

2023

Publication Date

2023-04-20