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Open AccessArticle

Structure and Photocatalytic Properties of Mn-Doped TiO2 Loaded on Wood-Based Activated Carbon Fiber Composites

Department of Wood Science and Technology, Tianjin University of Science & Technology, Tianjin 300222, China
Author to whom correspondence should be addressed.
Academic Editor: Walid A. Daoud
Materials 2017, 10(6), 631;
Received: 20 April 2017 / Revised: 24 May 2017 / Accepted: 2 June 2017 / Published: 9 June 2017
(This article belongs to the Special Issue Enhancing the Photocatalytic Activity of TiO2 Photocatalysts)
PDF [2804 KB, uploaded 9 June 2017]


Mn-doped TiO2 loaded on wood-based activated carbon fiber (Mn/TiO2-WACF) was prepared by sol–gel and impregnation method using MnSO4·H2O as manganese source. The structure of Mn/TiO2–WACF was characterized by SEM, XRD, FTIR, N2 adsorption and UV–Vis, and its photocatalytic activity for methylene blue degradation was investigated. Results show that Mn-doped TiO2 were loaded on the surface of wood-based activated carbon fiber with high-development pore structures. The crystallite sizes of Mn-doped TiO2 in composites were smaller than that of the undoped samples. With an increase of Mn doping content, Ti–O bending vibration intensity of Mn/TiO2–WACF increased and then decreased. Moreover, Ti–O–Ti and Ti–O–Mn absorption peaks increased upon doping of Mn. Mn/TiO2–WACF with low specific surface area, and pore volume was improved at 3.5–6.0 nm of mesopore distributions due to the Mn-doped TiO2 load. In addition, the UV–Vis showed that Mn/TiO2–WACF (photodegradation rate of 96%) has higher photocatalytic activity than the undoped samples for methylene blue degradation under visible light irradiation. View Full-Text
Keywords: Mn-doped TiO2; activated carbon fibers; wood; photocatalyst; characterization Mn-doped TiO2; activated carbon fibers; wood; photocatalyst; characterization

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Ma, X.; Zhou, W.; Chen, Y. Structure and Photocatalytic Properties of Mn-Doped TiO2 Loaded on Wood-Based Activated Carbon Fiber Composites. Materials 2017, 10, 631.

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