Synthesis of defected UIO‐66 with boosting the catalytic performance via rapid crystallization

Chu, Liang T.; Guo, Junzhen; Wang, Liyan; Liu, Huiyang; Yan, Jiamin; Wu, Lingmei; Yang, Mei; Wang, Ge

doi:10.1002/aoc.6559

Cited by 11 publications

(3 citation statements)

References 55 publications

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“…Additionally, we narrowed the focus to UiO-66 without functionalization or any kind of postsynthetic modification, as well as excluding UiO-66 analogues such as UiO-67. The final data set (included in the Supporting Information) is intended to be a representative, but not a comprehensive summary of the current literature and comprises of 293 samples across 37 papers, ,,,− ,,,− representing a publication period from 2011 to 2022. The distribution of the data set across input and output variables is also presented in the Supporting Information.…”

Section: Data Collection and Characterizationmentioning

confidence: 99%

“…The aim of this review is to draw connections between synthetic parameters and the final defective structures reported in the literature to aid the experimental design of UiO-66 MOFs with specific defect properties; it is expected that other MOFs with similarly strong coordination bonds will have similar dependence on synthetic parameters. To assist with this goal, we conducted a literature meta-analysis with 293 samples across 37 papers ,,,− ,,,− looking for reliable trends between reaction parameters and structural outcomes, such as defect concentration. We fit a LASSO linear regression model relating the synthetic parameters studied (time, temperature, and reagent concentrations) to quantitative defectivity and other output variables.…”

Section: Introductionmentioning

confidence: 99%

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Understanding the Role of Synthetic Parameters in the Defect Engineering of UiO-66: A Review and Meta-analysis

et al. 2023

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UiO-66 is one of the most significant and highly studied metal−organic frameworks to date due to its exceptional thermal and chemical stability and its demonstrated potential in a myriad of applications, such as the purification of contaminated waters, gas storage, and catalysis. Defective UiO-66, where either organic linkers or whole inorganic clusters are missing from the pristine framework structure, is of key interest as the unsaturated Zr sites left by these missed connections lead to enhanced catalytic and adsorptive performance, among other benefits such as increased surface area. A solvothermal approach with the inclusion of modulators is typically employed to synthesize defective UiO-66, but a complete understanding of the links between synthetic parameters and structural outcomes has yet to be reached. This review aims to address this gap by providing a thorough overview of the current literature and a detailed discussion of key aspects of the synthesis of UiO-66 and its resulting defectivity; this literature review is supported by a meta-analysis of representative experimental papers. The focus of the meta-analysis is to draw, where possible, quantitative connections between important synthetic parameters (namely, temperature, time, modulator acidity, and reagent concentration) and the structural features reported in the literature for defective UiO-66 (namely, quantitative defectivity, defect types, surface area, particle size, and pore volume). Despite significant limitations of the meta-analysis data set, we are able to determine some statistically significant relationships between parameters and provide recommendations for essential future experimental work. The research questions not conclusively answered by the meta-analysis are addressed by a thorough examination of individual papers discussing the various influencing factors. From this, we provide recommendations to aid the judicious choice of reagents and other synthetic parameters. Overall, this detailed analysis and review compiles critical experimental findings, provides key insights into optimizing defect formation in UiO-66, and highlights important research gaps in the current literature.

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Section: Data Collection and Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Understanding the Role of Synthetic Parameters in the Defect Engineering of UiO-66: A Review and Meta-analysis

et al. 2023

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“…Mguni et al reported that the modulated synthesis of Ni-BDC using formic acid increased the the overall adsorptive capacity by two folds [22]. The UIO-66 is regarded as a promising adsorbent due to its short synthesis time, low synthesis temperature, and massive preparation [23]. Moreover, MOFs-based materials as heterogeneous catalysts are also widely reported for the oxidative desulfurization.…”

Section: Introductionmentioning

confidence: 99%

Dibenzothiophene Removal from Fuel Oil by Metal-Organic Frameworks: Performance and Kinetics

Chen

Huang

You

et al. 2023

IJERPH

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Desulfurization of organic sulfur in the fuel oil is essential to cut down the emission of sulfur dioxide, which is a major precursor of the acid rain and PM2.5. Currently, hydrodesulfurization is regarded as a state-of-art technology for the desulfurization of fuel oil. However, due to the stringent legislation of the fuel oil, the deep desulfurization technology is urgent to be developed. Adsorptive desulfurization method is promising due to the high selectivity and easy operation. The development of efficient adsorbent is important to advance this technology into industrial application. In this work, the five types of metal-organic frameworks (MOFs), including Cu-BTC, UMCM-150, MIL-101(Cr), UIO-66, and Cu-ABTC were synthesized for the adsorption of dibenzothiophene (DBT), a typical organic sulfur compound in the fuel oil. The experimental results revealed that the adsorption capacity of the five MOFs followed the order of Cu-ABTC, UMCM-150, Cu-BTC, MIL-101(Cr), and UIO-66, which adsorption capacities were 46.2, 34.2, 28.3, 26.3, and 22.0 mgS/g, respectively. The three types of Cu-based MOFs such as Cu-ABTC, UMCM-150, and Cu-BTC outperformed the Cr-based MOFs, MIL-101, and Zr-based MOFs, UIO-66. Since the surface area and pore volumes of the Cu-based MOFs were not the greatest among the tested five MOFs, the physical properties of the MOFs were not the only limited factor for the DBT adsorption. The π-complexation between DBT and linkers/metal in the MOFs was also important. Kinetic analysis showed that the DBT adsorption onto the five tested MOFs follows the pseudo-second-order kinetics, confirming that the chemical π-complexation was also contributed to the DBT adsorption. Furthermore, the operation parameters such as oil-adsorbent ratio, initial sulfur concentration and adsorption temperature for the DBT adsorption onto Cu-ABTC were optimized to be 100:1 g/g, 1000 mgS/L and 30 °C, respectively. This work can provide some insights into the development of efficient adsorbent for the organic sulfur adsorption.

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Improving Oxidative Catalytic Efficiency for Fuels Desulfurization Using Hybrid Materials Based in MOF‐808@SBA‐15

Fernandes,

Leo,

Santos‐Vieira

et al. 2024

ChemCatChem

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This work unveils a route for a new generation of heterogeneous polyoxometalate (POMs) based catalysts associated to the preparation of hybrid materials as a triad of POMs, mesoporous silica (SBA‐15) and microporous MOF structures (MOF‐808). The prepared catalyst, PMo12@MOF‐808@SBA‐15, with the main active center the phosphomolybdic acid (PMo12), was successfully applied for the desulfurization of a multicomponent fuel. Its oxidative catalytic performance showed to be considerable superior to the isolated POM@MOF and able to be recycled for more catalytic cycles without active loss. The higher catalytic performance seems to be directly related with the preparation of a more amorphous MOF structure within the channels of SBA‐15, in the presence of active POM guests.

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Synthesis of defected UIO‐66 with boosting the catalytic performance via rapid crystallization

Cited by 11 publications

References 55 publications

Understanding the Role of Synthetic Parameters in the Defect Engineering of UiO-66: A Review and Meta-analysis

Understanding the Role of Synthetic Parameters in the Defect Engineering of UiO-66: A Review and Meta-analysis

Dibenzothiophene Removal from Fuel Oil by Metal-Organic Frameworks: Performance and Kinetics

Improving Oxidative Catalytic Efficiency for Fuels Desulfurization Using Hybrid Materials Based in MOF‐808@SBA‐15

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