Production of 5-HMF from glucose using TiO2-ZrO2 catalysts: Effect of the sol-gel synthesis additive

Silahua-Pavón, Adib Abiu; Espinosa‐González, Claudia G.; Ortíz‐Chi, Filiberto; Pacheco-Sosa, J. Gpe; Pérez-Vidal, Hermicenda; Arévalo‐Pérez, Juan Carlos; Godavarthi, Srinivas; Torres‐Torres, Gilberto

doi:10.1016/j.catcom.2019.105723

Cited by 37 publications

(37 citation statements)

References 23 publications

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“…Compared with the pristine UiO‐66, the relative intensity of UiO‐66 characteristic peaks in TiO 2 @UiO‐66 significantly decreases, and the characteristic peak of TiO 2 increases. It is worth noting that the IR band ∼705 gradually appeared and increased with increase TiO 2 content (see inset enlarged view in Figure 2a), suggesting that the generation of Ti−O−Zr groups [32] . The new characteristic peak indicated that the TiO 2 successfully coordinated with Zr 4+ cations, forming tight interfacial contact between TiO 2 and UiO‐66 [22] .…”

Section: Resultsmentioning

confidence: 93%

“…It is worth noting that the IR band~705 gradually appeared and increased with increase TiO 2 content (see inset enlarged view in Figure 2a), suggesting that the generation of TiÀ OÀ Zr groups. [32] The new characteristic peak indicated that the TiO 2 successfully coordinated with Zr 4 + cations, forming tight interfacial contact between TiO 2 and UiO-66. [22] Furthermore, from the narrow scan spectra (Figure 2b), the symmetric Vs(COOÀ ) and asymmetric Vas(COO À ) vibration of carboxyl groups in the ligand of MOFs slightly shift from 1393 and 1567 cm À 1 to 1398 and 1576 cm À 1 respectively, with increasing TiO 2 content.…”

Section: Characterization Of Photocatalystsmentioning

confidence: 98%

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TiO₂@UiO‐66 Composites with Efficient Adsorption and Photocatalytic Oxidation of VOCs: Investigation of Synergistic Effects and Reaction Mechanism

et al. 2020

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TiO2@UiO‐66 composite with intimate contact interfaces is fabricated by in situ solvothermal methods. Compared with other UiO‐based composites, TiO2@UiO‐66 exhibits superior photocatalytic activity for oxidation of toluene into CO2 during long‐time reaction under flowing conditions. This is because (1) the intimate contact interface and well‐matched band structure between TiO2 and UiO‐66 can effectively separate and transfer photogenerated electrons; (2) the synergistic effect between UiO‐66 and TiO2 promotes the adsorption of toluene and desorption of CO2 and provides sufficient active sites for photocatalytic reaction. The toluene conversion and CO2 production on 4TiO2@U are 3.27 and 4.10 times higher than that on UiO‐66, respectively. 4TiO2@U also shows the highest activity for formaldehyde and rhodamine B degradations. The in situ FTIR results exhibit that toluene can be oxidized by .O2− and h+ to benzaldehyde and benzoic acid, then further oxidized to oxalic acid, and finally mineralized into CO2 and H2O.

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Section: Resultsmentioning

confidence: 93%

Section: Characterization Of Photocatalystsmentioning

confidence: 98%

TiO₂@UiO‐66 Composites with Efficient Adsorption and Photocatalytic Oxidation of VOCs: Investigation of Synergistic Effects and Reaction Mechanism

et al. 2020

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“…After being cooled to 25 °C, the synthesized PCP (SPA-Imd-TinPCP) was recovered by filtering it through a 450-nm polycarbonate membrane, and washing Other metal-based catalysts have been developed for the catalytic conversion of glucose to HMF with high efficiency. TiO 2 -ZrO 2 modified with CH 3 COOH achieved the highest yield of 76% to HMF in H 2 O/THF [44]. The synthesis of modified TiO 2 -ZrO 2 [44] was carried out with the sol-gel method.…”

Section: Synthesis Of Spa-imd-tinpcpmentioning

confidence: 99%

“…TiO 2 -ZrO 2 modified with CH 3 COOH achieved the highest yield of 76% to HMF in H 2 O/THF [44]. The synthesis of modified TiO 2 -ZrO 2 [44] was carried out with the sol-gel method. The gel was subjected to the extraction of liquids in an oven at 70 • C for 48 h and then calcined at 500 • C for 12 h. The HMF yields of modified TiO 2 -ZrO 2 were reduced by about 60% after three cycles due to the loss of acidic sites.…”

Section: Synthesis Of Spa-imd-tinpcpmentioning

confidence: 99%

Sn-Based Porous Coordination Polymer Synthesized with Two Ligands for Tandem Catalysis Producing 5-Hydroxymethylfurfural

et al. 2019

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5-Hydroxymethylfurfural (HMF) is a biomass-derived important platform compound. Developing an efficient catalyst for producing HMF from a biomass source is important. Herein, using the ligands 5-sulfoisophthalic acid (SPA) and imidazole (Imd), a tin-based porous coordination polymer was synthesized, namely SPA-Imd-TinPCP. This novel material possesses a multifunctional catalysis capability. The coordinated tin (IV) can catalyze the isomerization of glucose to fructose. The ligand imidazole, as an additional base site, can catalyze glucose isomerization. The sulfonic group of the ligand SPA can catalyze the dehydration of fructose to HMF. SPA-Imd-TinPCP was used as a catalyst for the conversion of glucose to HMF. HMF yields of 59.5% in dimethyl sulfoxide (DMSO) and 49.8% in the biphasic solvent of water/tetrahydrofuran were obtained. Consecutive use of SPA-Imd-TinPCP demonstrated that, after reusing it five times, there was no significant activity loss in terms of the glucose conversion and HMF yield.Abstract: 5-Hydroxymethylfurfural (HMF) is a biomass-derived important platform compound. Developing an efficient catalyst for producing HMF from a biomass source is important. Herein, using the ligands 5-sulfoisophthalic acid (SPA) and imidazole (Imd), a tin-based porous coordination polymer was synthesized, namely SPA-Imd-TinPCP. This novel material possesses a multifunctional catalysis capability. The coordinated tin (IV) can catalyze the isomerization of glucose to fructose. The ligand imidazole, as an additional base site, can catalyze glucose isomerization. The sulfonic group of the ligand SPA can catalyze the dehydration of fructose to HMF. SPA-Imd-TinPCP was used as a catalyst for the conversion of glucose to HMF. HMF yields of 59.5% in dimethyl sulfoxide (DMSO) and 49.8% in the biphasic solvent of water/tetrahydrofuran were obtained. Consecutive use of SPA-Imd-TinPCP demonstrated that, after reusing it five times, there was no significant activity loss in terms of the glucose conversion and HMF yield.

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“…In processes requiring high yield and purity, heterogeneous catalysts can replace homogeneous ones owing to their ability to easily separate from the product [7]. The heterogeneous catalysts that were conventionally used include inorganic substances, such as: Fe3O4, CaO, Al2O3, TiO2, ZrO2, and MgO [5,8], in which the TiO2 and ZrO2 have excellent acidbase site properties and were good choices as catalysts [9]. The nanocomposite combination of TiO2 and ZrO2 can increase the catalytic activity due to their strong interaction, which induces the formation of a new catalytic site [10].…”

Section: Introductionmentioning

confidence: 99%

Cellulose and TiO2–ZrO2 Nanocomposite as a Catalyst for Glucose Conversion to 5-EMF

Dini

Helmiyati

Krisnandi

2021

Bull. Chem. React. Eng. Catal.

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This work demonstrated the use of green material catalysts, produced from Sengon sawdust waste, to obtain nanocellulose biopolymers. The green material catalysts were utilized as catalysts support of TiO2−ZrO2 binary oxide in the form of nanocomposite materials with superior synergistic properties. The isolation of nanocellulose was achieved using a hydrolysis method with a yield of 63.40%. The TiO2 and ZrO2 nanoparticles have average particle sizes of around 25 and 15 nm, respectively, and the binary oxides of TiO2–ZrO2 pretained an average particle size of 30 nm were used. Furthermore, the nanocellulose combined with the TiO2−ZrO2 binary oxide had formed a cellulose/TiO2−ZrO2 nanocomposite with an average particle size of 30 nm. This indicates that the supporting nanocellulose can stabilize the nanoparticles and avoid aggregation. Moreover, the nanocomposites can be used as a catalyst for the conversion of glucose to 5-ethoxymethylfurfural (5-EMF). The catalytic activity increased with the nanoparticle effect obtained ZrO2, TiO2, TiO2-ZrO2, and cellulose and TiO2-ZrO2 nanocomposite, in 15.50%, 20.20%, 35.20%, and 45.50% yields, respectively. The best yield of 5-EMF was 45.50%, with reaction conditions of 1:1 TiO2–ZrO2 ratio, 4 h reaction time, and 160 °C reaction temperature. The use of nanocellulose biopolymer generated from Sengon sawdust waste in Indonesia provides a promising catalyst support material as an alternative green catalyst. In addition, the glucose carbohydrates can be converted to biofuel feedstocks in the development of a renewable alternative energy. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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Production of 5-HMF from glucose using TiO2-ZrO2 catalysts: Effect of the sol-gel synthesis additive

Cited by 37 publications

References 23 publications

TiO₂@UiO‐66 Composites with Efficient Adsorption and Photocatalytic Oxidation of VOCs: Investigation of Synergistic Effects and Reaction Mechanism

TiO₂@UiO‐66 Composites with Efficient Adsorption and Photocatalytic Oxidation of VOCs: Investigation of Synergistic Effects and Reaction Mechanism

Sn-Based Porous Coordination Polymer Synthesized with Two Ligands for Tandem Catalysis Producing 5-Hydroxymethylfurfural

Cellulose and TiO2–ZrO2 Nanocomposite as a Catalyst for Glucose Conversion to 5-EMF

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Production of 5-HMF from glucose using TiO2-ZrO2 catalysts: Effect of the sol-gel synthesis additive

Cited by 37 publications

References 23 publications

TiO2@UiO‐66 Composites with Efficient Adsorption and Photocatalytic Oxidation of VOCs: Investigation of Synergistic Effects and Reaction Mechanism

TiO2@UiO‐66 Composites with Efficient Adsorption and Photocatalytic Oxidation of VOCs: Investigation of Synergistic Effects and Reaction Mechanism

Sn-Based Porous Coordination Polymer Synthesized with Two Ligands for Tandem Catalysis Producing 5-Hydroxymethylfurfural

Cellulose and TiO2–ZrO2 Nanocomposite as a Catalyst for Glucose Conversion to 5-EMF

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Product

Resources

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TiO₂@UiO‐66 Composites with Efficient Adsorption and Photocatalytic Oxidation of VOCs: Investigation of Synergistic Effects and Reaction Mechanism

TiO₂@UiO‐66 Composites with Efficient Adsorption and Photocatalytic Oxidation of VOCs: Investigation of Synergistic Effects and Reaction Mechanism