Single‐Atom Ru Anchored Mesoporous TiO <sub>2</sub> Phase‐Junction Promotes Photocatalytic Biomass Conversion
Abstract
Abstract Constructing advanced semiconductor nanoreactors is an effective route to boost the efficient photocatalytic conversion of biomasses to high‐value‐added products. Herein, single‐atom anchored flower‐like mesoporous TiO 2 nanoreactors with tunable anatase‐rutile crystalline phases are prepared via a micelle‐interface confined co‐assembly strategy (Ru 0.5 /A&R‐TNs). This approach not only facilitates the introduction of various monatomic/diatomic (e.g., Ru, Mo, Pd, Pt, etc.) sites but also spontaneously induces the TiO 2 phase transformation from anatase to rutile, achieving precise control of two‐phase ratios. The interface of the two phases with abundant oxygen vacancies (O v ) facilitates the adsorption and activation of 5‐hydroxymethylfurfural (HMF), which exhibits a high photocatalytic HMF oxidation to DFF (selectivity of 90.8%). Based on the optimal phase compositions, the doping of Ru single‐atom further exhibits a high atom utilization and suitable electronic structure. Therefore, the Ru 0.5 /A&R‐TNs achieve the cascade conversion from HMF to 5‐formyl‐2‐furoic acid with a selectivity of 75.8%. This research provides innovative ways for single‐atom catalyst synthesis, and the mechanism of synergistic catalytic action may provide new guidance for the photocatalytic conversion of high‐value‐added products from HMF.
Article Details
Authors (14)
Duoxin Shi
College of Energy Materials and Chemistry College of Chemistry and Chemical Engineering Inner Mongolia University Hohhot 010070 China
Jiaming Zhang
College of Energy Materials and Chemistry, College of Chemistry and Chemical Engineering
Zheng Qi
Linlin Duan
College of Chemistry and Materials, Department of Chemistry, Laboratory of Advanced Materials
Ruohan Yu
Wuhan University of Technology the Sanya Science and Education Innovation
Qin Yue
Institute of Fundamental and Frontier Sciences
Di Meng
Tianke Kang
Linjie Liu
Kun Lan
College of Energy Materials and Chemistry, College of Chemistry and Chemical Engineering
Wei Li
Dongyuan Zhao
Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Porous Materials for Separation and Conversion, Fudan University, 220 Handan, Shanghai 200433, P. R. China
Limin Wu
School of Chemistry and Chemical Engineering
Yuzhu Ma
College of Energy Materials and Chemistry, College of Chemistry and Chemical Engineering