INTERFACIAL APPLICATIONS IN ENVIRONMENTAL ENGINEERING - CHAPTER 14 pdf

... the resulting arrays being distinguisable by different-size particles and different interparticular spac- ing. In Figure 8, each island is approximately 8 nm high and about 140 nm in diameter, ... potential gradient that has formed from band bending (Fig. 2). This band-bending phenomenon assists in separating the e Ϫ /h ϩ pairs and in reducing recombination rates. For TiO 2 , the sur...

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... shows the majority/minority spin configurations. The HOMO is the Π bonding in the majority spin and the LUMO is the Π antibonding in the minority spin. (b) SO 2 (singlet, C 2v ). (c) SO 3 (singlet, C 3v ). TM Copyright ... most stable configurations involved dicoordination binding through both η 2 -S,O and η 2 -O,O structures on the Pt(111) surface but no flat-lying configurations. Our first-p...

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... of the distil- late at over 140 °C is more than 1600 µg/g. Obviously, sulfur content increases with the boiling point of distillate and concentrates in the high-boiling-point dis- tillates. Because ... Because of the com- plexity of FCC reactions, we cannot determine exactly whether it is via adsorbing and cracking sulfides in the feed or via adsorbing and cracking those in the gaso- li...

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... (4) waste minimization/recycle. Each contribution has either a theoretical significance or practical utility or both. Interfacial Applications in Environmental Engineer- ing is an invaluable resource ... Chemical Engineering, University of Cas- tilla–La Mancha, Ciudad Real, Spain C. H. Yang College of Chemistry and Chemical Engineering, University of Petroleum, Dongying, Shandong Pro...

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... mixed in the vicinity of the catalyst sample in the infrared reactor cell, as shown in the inset of Figure 1. One-hundred-mg catalysts were pressed into three to four thin disks, each weighing ... species during the step-and-pulse switch of the NO, O 2 , C 3 H 6 reactant flows during the SCR reaction over Cu-ZSM-5. II. EXPERIMENTAL A. Catalyst Preparation The overexchanged Cu-ZSM- 5-5...

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... role in electron transfer from the electron-accepting to the electron-donating sites at the catalytic surface. Ac- cording to Bahranowski et al. [48], single doping of Al-PILC with copper intro- duced ... species in Cu-MFI-based catalysts resulted in a substan- tial increase in propane conversion as well selectivity to CO 2 . This fact would explain the decided decrease in NO conver...

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... solution using Na-Y was investi- gated using a fixed-zeolite-bed configuration. The breakthrough curves for four selected HM are shown in Figure 5 under identical operating conditions. Break- through ... exchange with cations in external solution. An increase in exchange temperature enhanced HM removal by reducing the solvation coating and kinetic diameter of the in- going HM cation, fa...

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... [4,7]. In the experiments, titration ex- periments and computer modeling with MINTEQA2 indicate that the pH de- creases as Thio-Red  is initially titrated into aqueous divalent heavy metal solu- tions. ... Dekker, Inc. All Rights Reserved. 130 Matlock and Atwood FIG. 3 (a) Chemical structure of TMT-55 (2,4,6-trimercaptotiazine, trisodium salt non- ahydrate). (b) Binding motif between TMT-5...

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... strong inhibitory effect of water content can be interpreted as water-aided interruption of inter- and intramolecular contacts in the soil upon oil sorption. An increase in K d when increasing the ... taking into account the diversity in the environmental conditions and in the sources and history of the residuals. To evaluate the sensitivity of the model to variations in the main...

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... screening tests are positive in terms of flagging the potential of cata- lytically generated carbon nanofibers for application in continuous-flow water treatment. The pressure required to maintain ... JM Martin-Martinez, M Molina-Sobio, F Rodriguez-Reinoso, R Torre- grosa. J Colloid Interface Sci 124:528–534, 1988. 13. W Fritz, W Merk, E Schluender. Chem Eng Sci 36:743–757, 1981. 14. S Susa...

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