Evaluate the pyrolysis pathway of glycine and glycylglycine by TG–FTIR

Li, Jie; Wang, Zhiyong; Yang, Xi; Hu, Ling; Liu, Yuwen; Wang, Cunxin

doi:10.1016/j.jaap.2007.03.001

Cited by 148 publications

(80 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The first peaks were attributed to deamination of pristine molecules, and the second to secondary pyrolysis reactions. However, different from [20] we did not find a pronounced deamination peak suggesting that the majority of free amine groups were already transformed into the amide and/or imide moiety before activation energy for direct deamination was reached. This was also supported by the unchanged C/N ratio of the 200 • C residue (Table 1).…”

Section: Offline-pyrolysis and Tga-ftircontrasting

confidence: 84%

“…Furthermore, the evolution of NH 3 started during this decomposition step and exhibited a weak shoulder around 280 • C at the peak of maximum NH 3 release (360 • C). Pyrolysis of Gly and Gly-Gly also had two NH 3 release peaks at similar temperatures (260-285 • C, 360-380 • C) [20]. The first peaks were attributed to deamination of pristine molecules, and the second to secondary pyrolysis reactions.…”

Section: Offline-pyrolysis and Tga-ftirmentioning

confidence: 90%

See 1 more Smart Citation

TG–FTIR, LC/MS, XANES and Py-FIMS to disclose the thermal decomposition pathways and aromatic N formation during dipeptide pyrolysis in a soil matrix

Kruse

Eckhardt

Regier

et al. 2011

Journal of Analytical and Applied Pyrolysis

View full text Add to dashboard Cite

Section: Offline-pyrolysis and Tga-ftircontrasting

confidence: 84%

Section: Offline-pyrolysis and Tga-ftirmentioning

confidence: 90%

TG–FTIR, LC/MS, XANES and Py-FIMS to disclose the thermal decomposition pathways and aromatic N formation during dipeptide pyrolysis in a soil matrix

Kruse

Eckhardt

Regier

et al. 2011

Journal of Analytical and Applied Pyrolysis

View full text Add to dashboard Cite

“…34 Although one-to-one correspondence of the observed differential thermogravimetric (DTG) peaks in the present study to these sequence is not possible at present, the DTG peak shift to the lower temperature side and increased separation of the peaks observed might imply the decomposition promotion due to the thermocatalytic action of the titania substrate and the complex formation. This is attributed to the specific binding of the molecular fractions, due to the specific adsorption configuration.…”

Section: Discussionmentioning

confidence: 54%

Modification of titania nanoparticles for photocatalytic antibacterial activity via a colloidal route with glycine and subsequent annealing

et al. 2012

View full text Add to dashboard Cite

Changes in the colloid-chemical and photocatalytic properties of titania nanoparticles by attrition milling in the presence of glycine (Gly) and subsequent heat treatment were examined. By milling at 1500 rpm for 6 h, the average particle size was decreased from 123 to 85 nm, with simultaneous decrease in the specific surface area from 35.1 to 23.5 m 2 /g. Interfacial reactions between titania and Gly were confirmed by Fourier transform infrared spectroscopy, from the blue shift of the COO À related vibrational bands by 25 cm À1, relative to the same band from the pristine Gly. The bimodal N1s x-ray photoelectron spectroscopy peak similar to that from the reported titania-amino acid complex is another indication of the complex formation with the participation of nitrogen. When the dispersion was dried and calcined at 500°C in air, the powder exhibited pale yellow color. Diffuse reflectance spectroscopy showed significant visible light absorption, suggesting nitrogen incorporation into titania. The fired product showed high photocatalytic antibacterial activity by irradiation of blue light centered at around 440 nm, using Escherichia coli as a specimen of bacterial species. Thus, the present Gly-modified titania nanoparticles could be used for eliminating indoor bacteria under soft blue illumination. The series of interfacial chemical processes involved are also discussed.

show abstract

“…It has been postulated that the combined study of biomass and amino acids is the best approach to grasp a more comprehensive mechanism of nitrogen chemistry in biomass components (N-Chemistry) (Becidan et al, 2007). While the pyrolysis of amino acids has been extensively studied, there is very little information on the product distribution from the co-pyrolysis of amino acids with other forms of biomass (Li et al, 2007;Ren et al, 2011). Thus, this study attempts to bridge this gap in a more detailed manner.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, this study attempts to bridge this gap in a more detailed manner. Since most of the elemental nitrogen is bound in proteins, co-pyrolysis of lignin + tyrosine, ethyl cellulose + tyrosine, and sodium alginate + tyrosine was conducted with the aim of finding features that are protein-specific (Li et al, 2007;Hansson et al, 2003Hansson et al, , 2004. Notably, the studies of the pyrolysis of some biomass constituents such as tyrosine, laminarin and sodium alginate are scarce in literature.…”

Section: Introductionmentioning

confidence: 99%

Phenols from pyrolysis and co-pyrolysis of tobacco biomass components

2015

View full text Add to dashboard Cite

Phenol and its derivatives (phenol, o-, m-, p-cresols, catechol, hydroquinone, methoxy substituted phenols, etc. referred to as phenolic compounds or phenols) are well-known toxicants that exist in the environment and affect both human and natural ecosystems. This study explores quantitatively the yields of phenolic compounds from the thermal degradation (pyrolysis and oxidative pyrolysis) of common tobacco biomass components (lignin, tyrosine, ethyl cellulose, sodium alginate, and laminarin) as well as some mixtures (lignin/tyrosine, ethyl cellulose/tyrosine and sodium alginate/tyrosine) considered important in high temperature cooking, tobacco smoking, and forest fires. Special attention has been given to binary mixtures including those containing tyrosine-pyrolysis of binary mixtures of tyrosine with lignin and ethyl cellulose results in significant reductions in the yields of majority phenols relative to those from the thermal degradation of tyrosine. These results imply that the significant reductions of phenol yields in mixtures are not only dependent upon the mass fractions of the components but also the synergetic inhibition effect of biomass components on the thermal degradation of tyrosine. A mechanistic description of this phenomenon is suggested. The results may also be implied in tobacco industry that the cigarette paper (as ethyl cellulose derivative) may play a critical role in reducing the concentration of phenolic compounds released during tobacco burning.

show abstract

Evaluate the pyrolysis pathway of glycine and glycylglycine by TG–FTIR

Cited by 148 publications

References 28 publications

TG–FTIR, LC/MS, XANES and Py-FIMS to disclose the thermal decomposition pathways and aromatic N formation during dipeptide pyrolysis in a soil matrix

TG–FTIR, LC/MS, XANES and Py-FIMS to disclose the thermal decomposition pathways and aromatic N formation during dipeptide pyrolysis in a soil matrix

Modification of titania nanoparticles for photocatalytic antibacterial activity via a colloidal route with glycine and subsequent annealing

Phenols from pyrolysis and co-pyrolysis of tobacco biomass components

Contact Info

Product

Resources

About