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Papers by Philippe Heynderickx

Research paper thumbnail of Validation of two contrasting capturing mechanisms for gaseous formaldehyde between two different types of strong metal-organic framework adsorbents

Journal of Hazardous Materials

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Research paper thumbnail of Kinetic modeling of heterogeneous esterification reaction using initial reaction rate analysis: data extraction and evaluation of mass transfer criteria

Data in Brief

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Research paper thumbnail of Kinetic modeling of oleic acid esterification with UiO-66: from intrinsic experimental data to kinetics via elementary reaction steps

Chemical Engineering Journal

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Research paper thumbnail of A single-step protocol for closing experimental atom balances

MethodsX

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Research paper thumbnail of Metal-organic frameworks as catalysts for sugar conversion into platform chemicals: State-of-the-art and prospects

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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Research paper thumbnail of Porous Organic Polymer Composites as Surging Catalysts for Visible-Light-Driven Chemical Transformations and Pollutant Degradation

Journal of Photochemistry and Photobiology C: Photochemistry Reviews

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Research paper thumbnail of Acquisition of nonlinear kinetics from linear relations: Application on homogeneous transesterification reactions

Chemical Engineering Journal

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Research paper thumbnail of Activity Coefficients for Liquid Organic Reactions: Towards a Better Understanding of True Kinetics with the Synthesis of Jasmin Aldehyde as Showcase

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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Research paper thumbnail of MoO3 nanoparticle formation on zeolitic imidazolate framework-8 by rotary chemical vapor deposition

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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Research paper thumbnail of Dynamic headspace analysis using online measurements: Modeling of average and initial concentration

Talanta

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Research paper thumbnail of Closing the balance by the CLOBAL procedure: Towards more accurate concentration, conversion and selectivity values

Chemical Engineering Journal

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Research paper thumbnail of MoO3NPs/ZIF-8 composite material prepared via RCVD for photodegradation of dyes

Data in Brief

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Research paper thumbnail of Engineered synthesis of hierarchical porous organic polymers for visible light and natural sunlight induced rapid degradation of azo, thiazine and fluorescein based dyes in a unique mechanistic pathway

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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Research paper thumbnail of Superposition of artificial experimental error onto calculated time series: Construction of in-silico data sets

Data in Brief

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Research paper thumbnail of SIFT-MS a novel tool for monitoring and evaluating a biofilter performance

Chemical Engineering Journal, 2016

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Research paper thumbnail of Online SIFT-MS measurement of a biofilter response to dimethylsulfide concentration step changes

Biofiltration For Air Pollution Control 10th Conference, 2013

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Research paper thumbnail of Performance of a composite membrane bioreactor for the removal of ethyl acetate from waste air

Bioresource Technol, 2011

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Research paper thumbnail of SIFT-MS for livestock emission characterization: application of similarity coefficients

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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Research paper thumbnail of Measurement of Odorants in Livestock Buildings: SIFT-MS and TD-GC-MS

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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Research paper thumbnail of In-situ XAS study on the Cu and Ce local structural changes in a CuO–CeO2/Al2O3 catalyst under propane reduction and re-oxidation

Journal of Physics and Chemistry of Solids, 2009

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Research paper thumbnail of Validation of two contrasting capturing mechanisms for gaseous formaldehyde between two different types of strong metal-organic framework adsorbents

Journal of Hazardous Materials

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Research paper thumbnail of Kinetic modeling of heterogeneous esterification reaction using initial reaction rate analysis: data extraction and evaluation of mass transfer criteria

Data in Brief

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Kinetic modeling of oleic acid esterification with UiO-66: from intrinsic experimental data to kinetics via elementary reaction steps

Chemical Engineering Journal

Bookmarks Related papers MentionsView impact

Research paper thumbnail of A single-step protocol for closing experimental atom balances

MethodsX

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Metal-organic frameworks as catalysts for sugar conversion into platform chemicals: State-of-the-art and prospects

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

Research paper thumbnail of Porous Organic Polymer Composites as Surging Catalysts for Visible-Light-Driven Chemical Transformations and Pollutant Degradation

Journal of Photochemistry and Photobiology C: Photochemistry Reviews

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Acquisition of nonlinear kinetics from linear relations: Application on homogeneous transesterification reactions

Chemical Engineering Journal

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Activity Coefficients for Liquid Organic Reactions: Towards a Better Understanding of True Kinetics with the Synthesis of Jasmin Aldehyde as Showcase

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

Research paper thumbnail of MoO3 nanoparticle formation on zeolitic imidazolate framework-8 by rotary chemical vapor deposition

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

Research paper thumbnail of Dynamic headspace analysis using online measurements: Modeling of average and initial concentration

Talanta

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Closing the balance by the CLOBAL procedure: Towards more accurate concentration, conversion and selectivity values

Chemical Engineering Journal

Bookmarks Related papers MentionsView impact

Research paper thumbnail of MoO3NPs/ZIF-8 composite material prepared via RCVD for photodegradation of dyes

Data in Brief

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Engineered synthesis of hierarchical porous organic polymers for visible light and natural sunlight induced rapid degradation of azo, thiazine and fluorescein based dyes in a unique mechanistic pathway

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

Research paper thumbnail of Superposition of artificial experimental error onto calculated time series: Construction of in-silico data sets

Data in Brief

Bookmarks Related papers MentionsView impact

Research paper thumbnail of SIFT-MS a novel tool for monitoring and evaluating a biofilter performance

Chemical Engineering Journal, 2016

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Online SIFT-MS measurement of a biofilter response to dimethylsulfide concentration step changes

Biofiltration For Air Pollution Control 10th Conference, 2013

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Performance of a composite membrane bioreactor for the removal of ethyl acetate from waste air

Bioresource Technol, 2011

Bookmarks Related papers MentionsView impact

Research paper thumbnail of SIFT-MS for livestock emission characterization: application of similarity coefficients

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

Research paper thumbnail of Measurement of Odorants in Livestock Buildings: SIFT-MS and TD-GC-MS

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

Research paper thumbnail of In-situ XAS study on the Cu and Ce local structural changes in a CuO–CeO2/Al2O3 catalyst under propane reduction and re-oxidation

Journal of Physics and Chemistry of Solids, 2009

Bookmarks Related papers MentionsView impact