Hydrothermal Synthesis of MoS2/rGO Heterostructures for Photocatalytic Degradation of Rhodamine B under Visible Light

Journal of Nanomaterials - Tập 2021 - Trang 1-11 - 2021
Thi Thuy Trang Phan1, Thi Thanh Huong Nguyen1, Ha Tran Huu2, Thanh Tam Truong1, Le Tuan Nguyen1, Van Thang Nguyen2,1, Vy Anh Tran3,4, Thi Lan Huong Nguyen1, Hồng Liên Nguyễn5, Vien Vo2,1
1Faculty of Natural Sciences, Quy Nhon University, Quy Nhon 55000, Vietnam
2Applied Research Institute for Science and Technology, Quy Nhon University, Quy Nhon 55000, Vietnam
3Faculty of Environmental and Chemical Engineering, Duy Tan University, Da Nang 50000, Vietnam
4Institute of Research and Development, Duy Tan University, Da Nang 50000, Vietnam
5School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi 100000, Vietnam

Tóm tắt

MoS2/rGO composites were synthesized by hydrothermal method from the precursors of MoS2 and reduced graphene oxide (rGO) prepared in the former steps. The influence of the synthesis conditions including hydrothermal temperature and mass ratio of MoS2 to rGO on the structure, morphology, and optical absorption capacity of the MoS2/rGO composites was systematically investigated using physicochemical characterizations. The photocatalytic performance of as-prepared samples was investigated on the degradation of Rhodamine B under visible light, in which, the composites obtained at hydrothermal temperature of 180°C and MoS2/rGO mass ratio of 4/1 exhibited the highest photodegradation efficiency of approx. 80% after 4 hours of reaction. This enhancement in photocatalytic behaviour of composites could be assigned to the positive effect of rGO in life time expansion of photoinduced electrons—holes.

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Journal of Nanomaterials

Tập 2021

1-11

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