Citation: Siwen Gong, Fei Rao, Weibin Zhang, Qadeer-Ul Hassan, Zhaoqing Liu, Jianzhi Gao, Jiangbo Lu, Mirabbos Hojamberdiev, Gangqiang Zhu. Au nanoparticles loaded on hollow BiOCl microstructures boosting CO₂ photoreduction[J]. Chinese Chemical Letters, ;2022, 33(9): 4385-4388. doi: 10.1016/j.cclet.2021.12.039 shu

Au nanoparticles loaded on hollow BiOCl microstructures boosting CO₂ photoreduction

a.
School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, China
b.
School of Physics and Optoelectronic Engineering, Yangtze University, Jingzhou 434023, China
c.
School of Chemistry and Chemical Engineering, Institute of Clean Energy and Materials, Guangzhou University, Guangzhou 510006, China
d.
Institute of Chemistry, Technical University of Berlin, Berlin 10623, Germany

zgq2006@snnu.edu.cn

Received Date: 12 October 2021
Revised Date: 5 November 2021
Accepted Date: 15 December 2021
Available Online: 20 December 2021

Figures(4)

The BiOCl (BOC) synthesized by the water bath heating method was treated with sodium borohydride (NaBH₄) to introduce oxygen vacancies (OVs). At the same time, Au nanoparticles were loaded to prepare a series of Au/BiOCl samples with different ratios. OVs and Au nanoparticles can promote the light absorption of host photocatalyst in the visible region. The calculated work function of BiOCl and Au can verify the existence of Ohmic contact between the interface of them, which is conducive to the separation of charge carriers. Through a series of photoelectric tests, it was verified experimentally that the separation of charge carriers is indeed enhanced. The high-energy hot electrons produced by Au under the surface plasmon resonance (SPR) effect can increase the counts of electrons to participate in the CO₂ reduction reaction. Especially for 1.0%-Au/BOC, the yields of CO can reach 43.16 µmol g⁻¹ h⁻¹, which is 6.6 times more than that of BOC. Therefore, loading precious metal on semiconductors is an effective strategy to promote the photocatalytic performance of CO₂ reduction reactions.
- BiOCl,
- Au nanoparticles,
- Oxygen vacancy,
- Ohmic contact,
- CO₂ photoreduction
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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Au nanoparticles loaded on hollow BiOCl microstructures boosting CO2 photoreduction

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通讯作者: 陈斌, bchen63@163.com

Au nanoparticles loaded on hollow BiOCl microstructures boosting CO₂ photoreduction