TY  - GEN
A1  - Unuabonah, Emmanuel I.
A1  - Nöske, Robert
A1  - Weber, Jens
A1  - Günter, Christina
A1  - Taubert, Andreas
T1  - New micro/mesoporous nanocomposite material from low-cost sources for the efficient removal of aromatic and pathogenic pollutants from water
T2  - Postprints der Universität Potsdam Mathematisch-Naturwissenschaftliche Reihe
N2  - A new micro/mesoporous hybrid clay nanocomposite prepared from kaolinite clay, Carica papaya seeds, and ZnCl2 via calcination in an inert atmosphere is presented. Regardless of the synthesis temperature, the specific surface area of the nanocomposite material is between ≈150 and 300 m2/g. The material contains both micro- and mesopores in roughly equal amounts. X-ray diffraction, infrared spectroscopy, and solid-state nuclear magnetic resonance spectroscopy suggest the formation of several new bonds in the materials upon reaction of the precursors, thus confirming the formation of a new hybrid material. Thermogravimetric analysis/differential thermal analysis and elemental analysis confirm the presence of carbonaceous matter. The new composite is stable up to 900 °C and is an efficient adsorbent for the removal of a water micropollutant, 4-nitrophenol, and a pathogen, E. coli, from an aqueous medium, suggesting applications in water remediation are feasible.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 720 
KW  - 4-nitrophenol
KW  - Carica papaya seeds
KW  - clay
KW  - E. coli
KW  - micro/mesoporous
KW  - nanocomposite
KW  - water remediation
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-426214
IS  - 720
SP  - 119
EP  - 131
ER  - 
TY  - GEN
A1  - Wessig, Pablo
A1  - Gerngroß, Maik
A1  - Pape, Simon
A1  - Bruhns, Philipp
A1  - Weber, Jens
T1  - Novel porous materials based on oligospiroketals (OSK)
N2  - New porous materials based on covalently connected monomers are presented. The key step of the synthesis is an acetalisation reaction. In previous years we used acetalisation reactions extensively to build up various molecular rods. Based on this approach, investigations towards porous polymeric materials were conducted by us. Here we wish to present the results of these studies in the synthesis of 1D polyacetals and porous 3D polyacetals. By scrambling experiments with 1D acetals we could prove that exchange reactions occur between different building blocks (evidenced by MALDI-TOF mass spectrometry). Based on these results we synthesized porous 3D polyacetals under the same mild conditions.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - paper 175 
KW  - construction
KW  - frameworks
KW  - membranes
KW  - microporous organic polymers
KW  - models
KW  - molecular rods
KW  - sorption
Y1  - 2014
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-74466
SP  - 31123
EP  - 31129
ER  -