Sm3+-doped Bi2MoO6 with enhanced photocatalytic CO2 reduction performance originated from abundant oxygen vacancies

被引：1

作者：

Dou, Lin ^{[1
,2
]}

Chen, Yang ^{[1
]}

Tian, Yu ^{[1
]}

Jiang, Maosheng ^{[1
]}

Wu, Yunquan ^{[1
]}

Zhong, Junbo ^{[1
]}

机构：

[1] Sichuan Univ Sci & Engn, Key Lab Green Catalysis Higher Educ Inst Sichuan, Coll Chem & Environm Engn, Zigong 643000, Peoples R China

[2] Chengdu Univ Technol, Mineral Resources Chem Key Lab Sichuan Higher Educ, Chengdu 610059, Peoples R China

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2025年 / 177卷

关键词：

Bi2MoO6; Sm3+doped; Oxygen vacancies; Photocatalysis; CO2; reduction; DOPED BI2MOO6; FABRICATION; MICROSPHERES;

D O I：

10.1016/j.inoche.2025.114397

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Carbon dioxide (CO2) can be photocatalytic reduced into carbon-based fuels, which holds significant potential for advancing energy development and environmental governance. In this study, Sm3+-doped Bi2MoO6 (BMO) with abundant oxygen vacancies (OVs) was synthesized via a solvothermal method, and photocatalytic CO2 reduction performance of the samples was systematically evaluated. XRD analysis confirms that Sm3+ enters the lattices of Bi2MoO6, successfully replacing Bi3+ in the Sm-Bi2MoO6 samples. Additionally, X-ray photoelectron spectroscopy (XPS) O1s peak and low-temperature electron paramagnetic resonance (EPR) spectroscopy verify that Sm-Bi2MoO6 possesses a higher content of OVs compared to the reference Bi2MoO6. Photocatalytic CO2 reduction activities of the samples were evaluated and the results demonstrate that the 1.5% Sm-Bi2MoO6 (molar ratio of Sm3+ to Bi2MoO6 is 1.5 %) exhibits the highest performance, attributing to the boosted CO2 adsorption and improved separation efficiency of photoinduced e-/h+ pairs. CO yield on the 1.5 % Sm-Bi2MoO6 catalyst is 1.97 times higher than that on the reference Bi2MoO6. This work provides an interesting reference for development of highly efficiency photocatalytic materials for CO2 reduction.

引用

页数：10

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