Publications by authors named "Lang Shu"

3 Publications

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Corrigendum to "Fabrication of BiFeO-g-CN-WO Z-scheme heterojunction as highly efficient visible-light photocatalyst for water reduction and 2,4-dichlorophenol degradation: Insight mechanism" [J. Hazard. Mater. 397 (2020) 122708].

J Hazard Mater 2021 Aug 7;421:126772. Epub 2021 Aug 7.

Engineering Research Center for Functional Ceramics of the Ministry of Education, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, PR China; China-EU Institute for Clean and Renewable Energy, Huazhong University of Science and Technology, Wuhan 430074, PR China.

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http://dx.doi.org/10.1016/j.jhazmat.2021.126772DOI Listing
August 2021

A rational design of g-CN-based ternary composite for highly efficient H generation and 2,4-DCP degradation.

J Colloid Interface Sci 2021 Oct 20;599:484-496. Epub 2021 Apr 20.

Engineering Research Center for Functional Ceramics of the Ministry of Education, School of Optical and Electronic Information, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, PR China; Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, PR China. Electronic address:

In this work, g-CN based ternary composite (CeO/CN/NH-MIL-101(Fe)) has been fabricated via hydrothermal and wet-chemical methods. The composite showed superior photoactivities for HO reduction to produce H and 2,4-dichlorophenol (2,4-DCP) degradation. The amount of H evolved over the composite under visible and UV-visible irradiations is 147.4 µmol·g·h and 556.2 µmol·g·h, respectively. Further, the photocatalyst degraded 87% of 2,4-DCP in 2 hrs under visible light irradiations. The improved photoactivities are accredited to the synergistic-effects caused by the proper band alignment with close interfacial contact of the three components that significantly promoted charge transfer and separation. The 2,4-DCP degradation over the composite is dominated by OH radical rather than h and O as investigated by scavenger trapping experiments. This is further supported by the electron para-magnetic resonance (EPR) study. This work provides new directions for the development of g-CN based highly efficient ternary composite materials for clean energy generation and pollution control.
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http://dx.doi.org/10.1016/j.jcis.2021.04.049DOI Listing
October 2021

Fabrication of BiFeO-g-CN-WO Z-scheme heterojunction as highly efficient visible-light photocatalyst for water reduction and 2,4-dichlorophenol degradation: Insight mechanism.

J Hazard Mater 2020 Oct 20;397:122708. Epub 2020 Apr 20.

Engineering Research Center for Functional Ceramics of the Ministry of Education, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, PR China; China-EU Institute for Clean and Renewable Energy, HuazhongUniversity of Science and Technology, Wuhan 430074, PR China. Electronic address:

In this work, a Z-scheme BiFeO-g-CN-WO (BFO-CN-WO) photocatalyst has been synthesized via a wet chemical method and utilized in photocatalysis for hydrogen generation and 2,4-dichlorophenol (2,4-DCP) degradation under visible light irradiation. The resultant photocatalyst showed 90 μmol·h g H evolution activity and 63% 2,4-DCP degradation performance, which is 12 and 4.2 times higher than the pristine g-CN respectively. The fascinating photocatalytic performance is attributed to the strong interfacial contact between g-CN and the coupled BiFeO and WO component, which greatly improved the visible light absorption and charge carriers' separation. The designed Z-scheme heterojunction is a successful strategy for enhancing the separation efficiency of photo-induced charge carriers at the interface while retaining outstanding redox ability. During 2,4-DCP degradation, LC/MS technique was used to detect the reaction intermediates. According to the LC/MS results, several new intermediates such as 2,3-dichloro-6-(2,4-dichlorophenoxy)phenol (m/z = 306), 2,4-dichlorophenyl hydrogen carbonate (m/z = 207), 2,4-dichlorobenzen-1,3-diol (m/z = 177) and phenyl hydrogen carbonate (m/z = 137) were detected. Based on these intermediates, 2,4-DCP degradation pathway is proposed. The fluorescence (FL) and electron paramagnetic resonance (EPR) results reveal that the •OH plays an important role in the 2,4-DCP degradation. The fabricated photocatalyst can be utilized in the field of photocatalysis for practical applications.
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http://dx.doi.org/10.1016/j.jhazmat.2020.122708DOI Listing
October 2020
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