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Papers by Philippe Heynderickx
Journal of Hazardous Materials
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Data in Brief
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Chemical Engineering Journal
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MethodsX
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Coordination Chemistry Reviews
Apart from a short introduction that describes biomass and its platform chemicals; this manuscrip... more Apart from a short introduction that describes biomass and its platform chemicals; this manuscript ende-vours to analyze and classify the enormous literature that has been generated for biomass conversion over a new class of heterogeneous catalysts metal-organic frameworks (MOFs); the recent progress of sugar conversion over MOFs based catalysis into valuable chemicals such as 5-hydroxymethylfurfural (5-HMF) and the subsequent secondary platform chemicals such as 2,5-dimethylfuran, ethyl levulinate and lactic acid was investigated. The smart selection of MOFs' building units and reaction solvents are critically discussed. The catalytic potential of different MOFs and composite MOFs was also investigated by demonstrating their remarkable performance with salutary examples relevant to biomass catalytic conversions into initial and secondary platform chemicals. This review also gives a state-of-the-art for the corresponding reaction kinetics and reaction mechanisms regarding the discussed sugar conversion.
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Journal of Photochemistry and Photobiology C: Photochemistry Reviews
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Chemical Engineering Journal
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International Journal of Molecular Sciences
The aldol condensation of benzaldehyde and heptanal is taken as an example of reversible liquid p... more The aldol condensation of benzaldehyde and heptanal is taken as an example of reversible liquid phase organic reactions to show that inclusion of activity coefficients reveal distinct differences in conversion and product distribution when different solvents methanol, ethanol, n-propanol, or n-butanol are used. The purpose of this work is to show a pronounced solvent effect for a given set of identical kinetic parameters, i.e., the same liquid phase kinetics can result in different conversion and yield values, depending on the choice of solvent. It was shown that subsequent parameter estimation without inclusion of the activity coefficients resulted in a pronounced deviation from the ‘true’ kinetics, up to a factor of 30. It is proposed that the usage of average activity coefficients gives already a significant improvement, resulting in acceptable parameter estimates.
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Microporous and Mesoporous Materials
For the first time, MoO 3 nanoparticles (NPs) with a size ranging from 1.5 to 60 nm were deposite... more For the first time, MoO 3 nanoparticles (NPs) with a size ranging from 1.5 to 60 nm were deposited on spray dried zeolitic imidazolate framework-8 (ZIF-8) by rotary chemical vapor deposition (RCVD) in order to improve its photocatalytic performance. A direct effect of the deposition time on the metal oxide loading was observed. In a time frame between 0.9 and 2.7 ks the metal oxide loading can be increased from 1 to 3 wt%. All the MoO 3-NPs/ ZIF-8 catalysts were tested towards the methylene blue photodegradation using sunlight. MoO 3-NPs/ZIF-8 3 wt% RCVD reached a conversion of 82% and 95% after 180 and 300 min, respectively.
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Talanta
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Chemical Engineering Journal
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Data in Brief
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Applied Catalysis B: Environmental
We report the synthesis of two hierarchical organic polymeric networks for extremely efficient vi... more We report the synthesis of two hierarchical organic polymeric networks for extremely efficient visible light and natural sunlight induced degradation of versatile wastewater organic contaminants under different simulated physical conditions following two distinct mechanistic protocols concomitantly. Tailored synthesis of the polymers by effective utilization of high-dilution-technique leads to extremely low density and hence high dispersibility of the networks featuring impressive surface area and gas adsorption abilities. UV-vis absorption spectra of both composites showed a significant coverage of the natural solar irradiance spectrum. A synthetic control over energy-state potentials allowed the materials to demonstrate an unprecedented dye pollutant degradation capability following two mechanisms, the conventional catalyst sensitized pathway, and a substrate-sensitized secondary pathway, simultaneously. Furthermore, the catalyst exhibited a unique time-dependent, sequential, in-situ alteration in substrate selectivity when subjected to a mixed-component pollutant probe. The photocatalytic ability retained essentially unaltered at outdoor condition under natural sunlight illumination as well as after five successive iterations. This work provides an experimental proof of the concept that strategic synthesis can be employed to control the physical and chemical properties of polymeric networks including their energy-states to achieve novel photo-responsive behaviour, and utilize them as green, sustainable environmentally benign and industrially viable heterogeneous catalysts.
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Data in Brief
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Chemical Engineering Journal, 2016
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Biofiltration For Air Pollution Control 10th Conference, 2013
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Bioresource Technol, 2011
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SIFT-MS (selected ion flow tube mass spectrometry) is used to construct libraries for emissions f... more SIFT-MS (selected ion flow tube mass spectrometry) is used to construct libraries for emissions from pig and broiler farming activities. Libraries are based on full mass scans in m/z range 15 to 250 using H3O+, NO+and O2+ precursor ions. The so-called ‘Yule coefficient’, which represents one algebraic number as singular descriptor for similarity between samples, is chosen as the best tool to identify similarities between a given sample and library data. The proposed methodology, which is simple and straightforward, is successfully applied on data from different experimental sampling campaigns. From an engineering point of view, it is considered to be a promising technique to evaluate whether a sample corresponds to one of the catalogued library data sets.
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Air samples from animal farming are analysed in parallel using traditional TD-GC-MS (thermal deso... more Air samples from animal farming are analysed in parallel using traditional TD-GC-MS (thermal desorption gas chromatography mass spectrometry) and SIFT-MS (selected ion flow tube mass spectrometry). In samples from 4 different livestock buildings, 23 odorous compounds are detected and quantified based on TD-GC-MS, including organic acids, sulphur compounds and phenols. Significant concentration differences are found between pig stables and poultry houses. SIFT-MS spectra show similar differences in product ion intensities, suggesting SIFT-MS as a promising fast technique for evaluation of odorous emissions from livestock buildings.
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Journal of Physics and Chemistry of Solids, 2009
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Journal of Hazardous Materials
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Data in Brief
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Chemical Engineering Journal
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MethodsX
Bookmarks Related papers MentionsView impact
Coordination Chemistry Reviews
Apart from a short introduction that describes biomass and its platform chemicals; this manuscrip... more Apart from a short introduction that describes biomass and its platform chemicals; this manuscript ende-vours to analyze and classify the enormous literature that has been generated for biomass conversion over a new class of heterogeneous catalysts metal-organic frameworks (MOFs); the recent progress of sugar conversion over MOFs based catalysis into valuable chemicals such as 5-hydroxymethylfurfural (5-HMF) and the subsequent secondary platform chemicals such as 2,5-dimethylfuran, ethyl levulinate and lactic acid was investigated. The smart selection of MOFs' building units and reaction solvents are critically discussed. The catalytic potential of different MOFs and composite MOFs was also investigated by demonstrating their remarkable performance with salutary examples relevant to biomass catalytic conversions into initial and secondary platform chemicals. This review also gives a state-of-the-art for the corresponding reaction kinetics and reaction mechanisms regarding the discussed sugar conversion.
Bookmarks Related papers MentionsView impact
Journal of Photochemistry and Photobiology C: Photochemistry Reviews
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Chemical Engineering Journal
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International Journal of Molecular Sciences
The aldol condensation of benzaldehyde and heptanal is taken as an example of reversible liquid p... more The aldol condensation of benzaldehyde and heptanal is taken as an example of reversible liquid phase organic reactions to show that inclusion of activity coefficients reveal distinct differences in conversion and product distribution when different solvents methanol, ethanol, n-propanol, or n-butanol are used. The purpose of this work is to show a pronounced solvent effect for a given set of identical kinetic parameters, i.e., the same liquid phase kinetics can result in different conversion and yield values, depending on the choice of solvent. It was shown that subsequent parameter estimation without inclusion of the activity coefficients resulted in a pronounced deviation from the ‘true’ kinetics, up to a factor of 30. It is proposed that the usage of average activity coefficients gives already a significant improvement, resulting in acceptable parameter estimates.
Bookmarks Related papers MentionsView impact
Microporous and Mesoporous Materials
For the first time, MoO 3 nanoparticles (NPs) with a size ranging from 1.5 to 60 nm were deposite... more For the first time, MoO 3 nanoparticles (NPs) with a size ranging from 1.5 to 60 nm were deposited on spray dried zeolitic imidazolate framework-8 (ZIF-8) by rotary chemical vapor deposition (RCVD) in order to improve its photocatalytic performance. A direct effect of the deposition time on the metal oxide loading was observed. In a time frame between 0.9 and 2.7 ks the metal oxide loading can be increased from 1 to 3 wt%. All the MoO 3-NPs/ ZIF-8 catalysts were tested towards the methylene blue photodegradation using sunlight. MoO 3-NPs/ZIF-8 3 wt% RCVD reached a conversion of 82% and 95% after 180 and 300 min, respectively.
Bookmarks Related papers MentionsView impact
Talanta
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Chemical Engineering Journal
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Data in Brief
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Applied Catalysis B: Environmental
We report the synthesis of two hierarchical organic polymeric networks for extremely efficient vi... more We report the synthesis of two hierarchical organic polymeric networks for extremely efficient visible light and natural sunlight induced degradation of versatile wastewater organic contaminants under different simulated physical conditions following two distinct mechanistic protocols concomitantly. Tailored synthesis of the polymers by effective utilization of high-dilution-technique leads to extremely low density and hence high dispersibility of the networks featuring impressive surface area and gas adsorption abilities. UV-vis absorption spectra of both composites showed a significant coverage of the natural solar irradiance spectrum. A synthetic control over energy-state potentials allowed the materials to demonstrate an unprecedented dye pollutant degradation capability following two mechanisms, the conventional catalyst sensitized pathway, and a substrate-sensitized secondary pathway, simultaneously. Furthermore, the catalyst exhibited a unique time-dependent, sequential, in-situ alteration in substrate selectivity when subjected to a mixed-component pollutant probe. The photocatalytic ability retained essentially unaltered at outdoor condition under natural sunlight illumination as well as after five successive iterations. This work provides an experimental proof of the concept that strategic synthesis can be employed to control the physical and chemical properties of polymeric networks including their energy-states to achieve novel photo-responsive behaviour, and utilize them as green, sustainable environmentally benign and industrially viable heterogeneous catalysts.
Bookmarks Related papers MentionsView impact
Data in Brief
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Chemical Engineering Journal, 2016
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Biofiltration For Air Pollution Control 10th Conference, 2013
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Bioresource Technol, 2011
Bookmarks Related papers MentionsView impact
SIFT-MS (selected ion flow tube mass spectrometry) is used to construct libraries for emissions f... more SIFT-MS (selected ion flow tube mass spectrometry) is used to construct libraries for emissions from pig and broiler farming activities. Libraries are based on full mass scans in m/z range 15 to 250 using H3O+, NO+and O2+ precursor ions. The so-called ‘Yule coefficient’, which represents one algebraic number as singular descriptor for similarity between samples, is chosen as the best tool to identify similarities between a given sample and library data. The proposed methodology, which is simple and straightforward, is successfully applied on data from different experimental sampling campaigns. From an engineering point of view, it is considered to be a promising technique to evaluate whether a sample corresponds to one of the catalogued library data sets.
Bookmarks Related papers MentionsView impact
Air samples from animal farming are analysed in parallel using traditional TD-GC-MS (thermal deso... more Air samples from animal farming are analysed in parallel using traditional TD-GC-MS (thermal desorption gas chromatography mass spectrometry) and SIFT-MS (selected ion flow tube mass spectrometry). In samples from 4 different livestock buildings, 23 odorous compounds are detected and quantified based on TD-GC-MS, including organic acids, sulphur compounds and phenols. Significant concentration differences are found between pig stables and poultry houses. SIFT-MS spectra show similar differences in product ion intensities, suggesting SIFT-MS as a promising fast technique for evaluation of odorous emissions from livestock buildings.
Bookmarks Related papers MentionsView impact
Journal of Physics and Chemistry of Solids, 2009
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