Carbon Quantum Dots-Functionalized UiO-66-NH 2 Enabling Efficient Infrared Light Conversion of 5-Hydroxymethylfurfuryl with Waste Ethanol into 5-Ethoxymethylfurfural

Hong Xiao (), Yunting Zhang, Junran Gong, Kexin Li, Xing Chen (), Dexin Fang, Guochun Lv, Ganxue Wu, Shihuai Deng and Zhenxing Zeng ()
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Hong Xiao: College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China
Yunting Zhang: ZHTH Research Institute of Environmental Sciences, Beijing 100085, China
Junran Gong: College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China
Kexin Li: Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
Xing Chen: College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China
Dexin Fang: College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China
Guochun Lv: College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China
Ganxue Wu: College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China
Shihuai Deng: College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China
Zhenxing Zeng: College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China

IJERPH, 2022, vol. 19, issue 16, 1-15

Abstract: The catalytic etherification of 5-hydroxymethylfurfural (HMF) with the waste ethanol into high-energy-density 5-ethoxymethylfurfural (EMF) has been considered as a promising way to simultaneously alleviate the energy crisis and environmental pollution. However, the energy consumption is rather high as the synthesis of EMF requires a high temperature to open the etherification reaction. Herein, we demonstrate a clever design and construction of acidified biomass-derived carbon quantum dots (BCQDs)-modified UiO-66-NH 2 that is immobilized on cermasite (H + /BCQDs/UiO-66-NH 2 @ceramsite), which can use the IR light as driven energy and wasted ethanol to trigger the catalytic conversion of HMF into EMF. The temperature on the surface of the immobilized catalyst could reach as high as 139 °C within 15 min IR irradiation. Due to the aforementioned advantages, the as-prepared catalyst exhibited excellent IR-triggered catalytic performance toward EMF production, where the EMF yields and selectivity were as high as 45% and 65%, respectively. The high catalytic performance originates from the outstanding photo-to-thermal conversion by the introduction of BCQDs, as well as the strong interactions between BCQDs and UiO-66-NH 2 that boosts the etherification reactions. The immobilization of catalyst on cermasite not only benefits catalyst recycling, but more importantly reduces catalyst loss during practical applications. The conceptual study shown here provides new viewpoints in designing energy-effective materials for the conversion of wastes into high-value-added resources.

Keywords: acid catalysis; 5-methoxymethylfurfural synthesis; immobilized catalyst; biological carbon quantum dots; photothermal conversion (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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