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two photocatalysts with exactly the same pore size distribution pattern and thus from this point of view it is not advised to draw any general conclusions regarding the photocatalytic activity. It must also be emphasized that the reaction order

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Reaction Kinetics, Mechanisms and Catalysis
Authors: R. Thinesh Kumar, N. Clament Sagaya Selvam, T. Adinaveen, L. John Kennedy, and J. Judith Vijaya

Quantochrome Corp. Nova-1000 gas sorption analyzer and evaluated by the BET (Brunauer, Emmett and Teller) equation [ 24 , 25 ]. Prior to the measurement, the samples were dried at 120 °C for at least 12 h. The pore size distribution was determined using the

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cm. The BET surface area and pore size distributions of the catalysts were estimated by the low-temperature nitrogen adsorption at relative pressures (P/P 0 ) in the range 0.05–0.9. The UV–Vis spectrum was recorded on a Shimadzu-8400S

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Artificial pozzolanic cement pastes containing burnt clay with and without silica fume

Physicochemical, microstructural and thermal characteristics

Journal of Thermal Analysis and Calorimetry
Authors: M. S. Amin, S. A. Abo-El-Enein, A. Abdel Rahman, and Khaled A. Alfalous

content, compressive strength, and pore size distribution of hardened lime–pozzolana pastes. The results showed that the clinoptilolite possessed a high lime–pozzolana reactivity that was comparable to SF and was higher than fly ash and a non

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electron dispersive x-ray spectroscopy (EDS). Specific BET surface area and pore size distribution were determined with a Micromeritics TriStar 3000 model by nitrogen adsorption at 77 K. Samples were degassed under flowing Ar at 573 K for 5 h before N 2

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type of support [ 5 ]. The physical structures and chemical properties of silicas vary widely in terms of surface area, pore size distribution, particle size, the type and concentration of hydroxyl groups and the acid–base properties according

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Journal of Thermal Analysis and Calorimetry
Authors: V. Sydorchuk, W. Janusz, S. Khalameida, E. Skwarek, J. Skubiszewska-Zięba, R. Leboda, and V. Zazhigalov

—the volume of macropores which are not filled in the process of adsorption from the vapor phase, but by impregnation from the liquid phase. The pore diameter d PSD was calculated from the curves of pore size distribution (PSD) using the

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Reaction Kinetics, Mechanisms and Catalysis
Authors: Viorel Chihaia, Karl Sohlberg, Monica Dan, Maria Mihet, Alexandru R. Biris, Petru Marginean, Valer Almasan, George Borodi, Fumiya Watanabe, Alexandru S. Biris, and Mihaela D. Lazar

catalyst. The pore size distribution (very similar for all studied samples) is narrow having the pores’ radii between 20 and 40 Å, with a mean value of 24 Å [ 22 , 23 ]. Table 1 Specific surface area, pore

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