Displaying 1 - 8 of 8 in spectroscopy (remove filter)
CEST Proceedings are published under the ISSN 2944-9820.
On the positive influence of Pd species on low-density polyethylene cracking
Pyra K., Tarach K., Majda D., Janiszewska E., Melián-Cabrera I., (Corresponding) Góra-Marek K.
Topic:
Solid waste management
Microporous 12-ring zeolite Beta was impregnated with palladium and evaluated in the cracking of low-density polyethylene (LDPE) cracking. In addition to the catalytic measurements the materials were characterized by X-ray diffraction, chemical analysis and nitrogen adsorption, electron microscopy...Read more
Keywords:
LDPE cracking, zeolite, in situ and operando IR spectroscopy
Bottom-up synthesized hierarchical Beta zeolites as the catalysts for low-density polyethylene cracking
(Corresponding) Pyra K., Janiszewska E., Tarach K., Majda D., Góra-Marek K.
Topic:
Solid waste management
Improving mass transport in zeolites Beta by bottom-up hierarchization was aimed at preserving their native microporous acidic characteristic and finally demonstrating their applicability in LDPE catalytic pyrolysis, in contrast to top-down modified analogues.
Keywords:
hierarchical zeolites Beta, LDPE cracking, IR spectroscopy
Application of Ni loaded FAU zeolites in catalytic conversion of 1,2-dichloroethane towards value added products
(Corresponding) Góra-Marek K., (Corresponding) Srębowata A., Kowalewski E., (Corresponding) Tarach K., Pyra K.
Topic:
Nanomaterials in the environmnents applications and effects
The catalytic performance of nickel loaded zeolite materials was found to be dependent on their acidic feature that influenced metal speciation and its dispersion. The selectivity to ethane and ethane of the Ni loaded catalysts increased when reducing both the number of acid sites and average...Read more
Keywords:
nickel, zeolites, 1,2-dichloroethene hydrodechlorination, IR spectroscopy
Mercury in the coastal waters of Greece under the implementation of the Water Framework Directive (WFD)
Yfanti A., (Corresponding) Paraskevopoulou V., Chalkiadaki O., Botsou F., Panagopoulou G., Stathopoulou E., Zeri C., Tzempelikou E., Dassenakis M.
Topic:
Heavy metals in the environment
Mercury (Hg) is an environmentally hazardous metal and a priority element in Mediterranean environmental monitoring. Hg is a priority pollutant in the main pieces of European legislation pertaining to the marine environment (the Marine Strategy Framework Directive - MSFD and the Water Framework...Read more
Detection of Microplastics using Laser-Induced Breakdown Spectroscopy - A first approach
(Corresponding) Sommer C., Schneider L., Nguyen J., Prume J., Lautze K., Koch M.
Topic:
Microplastics in water treatment: fate, toxicity assessment and removal technologies
The worldwide inability to enforce effective plastic guidelines results in an increasing accumulation of microplastics in natural habitats. Since this problem is in need of human intervention, we propose Laser-Induced Breakdown Spectroscopy (LIBS) as a new tool to identify microplastics. Our...Read more
Affordable multi-spectral imaging system for the identification and classification of microplastics from the environment
(Corresponding) Konde S., Gonnade V., Brackmann S., Nguyen J., Schneider M., Loeschel L., Lott C., Weber M., Koch M.
Topic:
Case studies of macro- and microplastics pollution in coastal waters and rivers
Studies on microplastic pollution commonly use expensive spectroscopic methods such as FTIR spectroscopy or Raman spectroscopy. Alternatively, studies could also employ cheaper methods such as optical microscopes, which are prone to errors. Here, we present an inexpensive and simple multi-spectral...Read more
Keywords:
Microplastics, photoluminescence, spectroscopy, multi-spectral imaging system, affordable system
High FAME yield Biodiesel from microalgae through nanocatalytic transesterification process.
Mittal V., (Corresponding) Ghosh U.
Topic:
Environmental biotechnology and bioenergy
Biodiesel production from microalgae is significantly important when reserves of petro-diesel are depleting, and utilization of vegetable oil-based fuel leads to food scarcity. The rapid growth and high lipid content of microalgae is an ideal feedstock for biodiesel production. The use of...Read more
Keywords:
SEM-Scanning Electron Microscopy, FAME-Fatty acid methyl ester, BET-Brunauer-Emmett-Teller, FTIR- Fourier-Transform Infrared Spectroscopy, GC-MS- Gas chromatography mass spectroscopy.
Low molecular weight polymers in aquatic environments as pollutants of emerging concerns: recovery, quantification and microstructure
(Corresponding) Giannattasio A., Iuliano ., Oliva G., Giaquinto D., Capacchione C., Korshin G., Barcelo D., Naddeo V., Belgiorno V., Buonerba A., Grassi A.
Topic:
Citizen Science in Environmental Monitoring
Microplastics and, more in general, synthetic polymer debrides of anthropic origin are accumulating in the environment, in particular in marine water and sediments, with risks associated for aquatic organisms and humans not well wholly understood. In this contribution it is reported a new method...Read more
