Relevant bibliographies by topics / Surface complexation structure

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
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Academic literature on the topic 'Surface complexation structure'

Author: Grafiati
Published: 25 May 2024
Last updated: 31 July 2025

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Journal articles on the topic "Surface complexation structure"

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Maldonado-Valderrama, Julia, Yan Yang, Maykel Jiménez-Guerra, Teresa del Castillo-Santaella, José Ramos, and Alberto Martín-Molina. "Complexation of DNA with Thermoresponsive Charged Microgels: Role of Swelling State and Electrostatics." Gels 8, no. 3 (2022): 184. http://dx.doi.org/10.3390/gels8030184.

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Micro- and nanogels are being increasingly used to encapsulate bioactive compounds. Their soft structure allows large loading capacity while their stimuli responsiveness makes them extremely versatile. In this work, the complexation of DNA with thermoresponsive microgels is presented. To this end, PEGylated charged microgels based on poly-N-isopropylacrylamide have been synthesized, allowing one to explore the electrostatics of the complexation. Cationic microgels complexate spontaneously by electrostatic attraction to oppositely charged DNA as demonstrated by electrophoretic mobility of the c
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Sun, Yubing, Xiangxue Wang, Wencheng Song, Songhua Lu, Changlun Chen, and Xiangke Wang. "Retracted Article: Mechanistic insights into the decontamination of Th(iv) on graphene oxide-based composites by EXAFS and modeling techniques." Environmental Science: Nano 4, no. 1 (2017): 222–32. http://dx.doi.org/10.1039/c6en00470a.

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Varadachari, Chandrika, Tarit Chattopadhyay, and Kunal Ghosh. "The crystallo-chemistry of oxide-humus complexes." Soil Research 38, no. 4 (2000): 789. http://dx.doi.org/10.1071/sr99053.

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Complexation of humic substances with goethite, hematite, gibbsite, and boehmite has been explained from a viewpoint of crystal structure of the minerals. Theoretical analysis of crystal surface structures revealed the following. (i) Residual charge carried by O or OH on surfaces of gibbsite is –1/2; on boehmite it is –3/2 or –1/2; on goethite it is –4/3, –2/3, or –1/3; and on hematite it is –3/2, –1, or –1/2. Cations adsorbed to neutralise these charges can form bridging links with humic acid; higher charges form stronger links. (ii) Surfaces of goethite, hematite, and gibbsite also contain o
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Dong, Yaqiong, Jianjun Liang, Zhengyang E, et al. "Preparation of biochar/iron mineral composites and their adsorption of methyl orange." RSC Advances 14, no. 46 (2024): 33977–86. http://dx.doi.org/10.1039/d4ra05529b.

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Biochar loaded with Fe-containing minerals was synthesized to enhance the adsorption of methyl orange (MO). The composites exhibited high surface area, pore structure, and adsorption sites, utilizing electrostatic attraction, complexation, π–π interactions, and hydrogen bonding.
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Sposito, Garrison. "Surface Reactions in Natural Aqueous Colloidal Systems." CHIMIA 43, no. 6 (1989): 169. https://doi.org/10.2533/chimia.1989.169.

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Natural colloids are mixtures of inorganic and organic polymers resulting from weathering processes. These materials include layer-type aluminosilicates, hydrous oxides, and biodegraded organic matter. Regardless of their molecular structure, these polymeric constituents present reactive functional groups of two principal kinds at the colloid/aqueous solution interface: siloxane ditrigonal cavities and inorganic or organic hydroxy groups. The reactive proportion of each kind of functional group at a colloid surface depends on the extent of chemical weathering and the composition of the materia
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Hiemstra, Tjisse, Rasoul Rahnemaie, and Willem H. van Riemsdijk. "Surface complexation of carbonate on goethite: IR spectroscopy, structure and charge distribution." Journal of Colloid and Interface Science 278, no. 2 (2004): 282–90. http://dx.doi.org/10.1016/j.jcis.2004.06.014.

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TIWARY, AMIT S., PARTHA SARATHI SENGUPTA, and ASOK K. MUKHERJEE. "MODELING THE GROUND STATE GEOMETRY AND ESTIMATING THE CHARGE TRANSFER TRANSITION ENERGY OF THE TOLUENE–ICl MOLECULAR COMPLEX BY AB INITIO AND DFT METHODS." Journal of Theoretical and Computational Chemistry 07, no. 03 (2008): 331–46. http://dx.doi.org/10.1142/s0219633608003782.

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Out of several plausible isomeric structures of the toluene–ICl charge transfer (CT) complex, the most feasible one was determined by a detailed ab initio and DFT study at the HF, B3LYP, and mPW1PW91 levels using 6-31++G(d, p) basis set. Potential energy surface scans were performed with six possible structures ( I and Cl facing the o-, m-, and p-carbon atoms of toluene separately); the structures at the local minima of the surfaces were subjected to frequency calculation and the ones having no negative frequency were accepted as the real structure in the ground state. These structures were th
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Zimmermann, C. J., N. Ryde, N. Kallay, R. E. Partch, and E. Matijević. "Plasma modification of polyvinyltoluene and polystyrene latices." Journal of Materials Research 6, no. 4 (1991): 855–60. http://dx.doi.org/10.1557/jmr.1991.0855.

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Polyvinyltoluene (PVT) latex particles were etched with O2 or CF4/O2 plasma and polystyrene (PS) latex by the O2 plasma. While the effect of these treatments on the surface topology and the specific surface area was minor, the electrokinetic measurements showed a significant change in the surface charge characteristics. The interpretation of the results in terms of a surface complexation model, taking the Stern–Gouy–Chapman structure of the interfacial layer into consideration, yielded the values of the corresponding equilibrium constants, which indicated that the chemical nature and the densi
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Wang, Kun, Yuchao Tang, Xinyu Zhang, Xianhuai Huang, and Beiping Zhang. "Study of the Reaction Mechanism of the Excessive Adsorption of Mn2+ from Water by In Situ Synthesis of MnO2@SiO2 Colloid as an Adsorbent." International Journal of Molecular Sciences 26, no. 7 (2025): 2928. https://doi.org/10.3390/ijms26072928.

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An in situ-generated MnO2@SiO2 colloidal (ISMC) composite was used for the adsorption of Mn2+ ions in water. The adsorption capacity of ISMC at a concentration of 1 mg/L at 25 °C was as high as 3017.97 mg/g for the original concentration of 50 mg/L Mn2+ ions. Material characterization revealed that it is a porous sponge with a fibrous structure with a rough surface, many folds, and abundant pores, and these features provide many adsorption sites, which are conducive to the attachment of Mn2+ ions on its surface. ISMC has an isoelectric point of 3.5, indicating a negative surface charge that fa
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Son, Yeongkyun, Tae-Hyun Kim, Daekeun Kim, and Yuhoon Hwang. "Porous Clay Heterostructure with Alginate Encapsulation for Toluene Removal." Nanomaterials 11, no. 2 (2021): 388. http://dx.doi.org/10.3390/nano11020388.

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A volatile organic compound adsorbent based on a porous clay heterostructure (PCH) with alginate biopolymer was successfully prepared. From N2 adsorption–desorption analysis, the specific surface area, pore volume, and pore size of bentonite were dramatically increased after introducing the porous structure. Following complexation with alginate (Alg-PCH), the pore volume and pore size were not significantly affected by pore structure. The thermal stability of Alg-PCH shows enhanced thermal stability compared to alginate and alginate beads. The morphology layered structure of Alg-PCH was carrie
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Dissertations / Theses on the topic "Surface complexation structure"

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Gao, Pengyuan. "Theoretical Studies of the Interaction between U(VI) and Mineral Surfaces." Electronic Thesis or Diss., Orléans, 2023. http://www.theses.fr/2023ORLE1074.

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L'étude des processus d'adsorption des radionucléides sur les surfaces minérales est fondamentale pour la conception et l'évaluation de la sûreté des futurs systèmes de stockage des déchets radioactifs, ainsi que pour les diagnostics environnementaux des milieux pollués par des radionucléides. Parmi ces radionucléides, l'uranium a une abondance relativement élevée dans les systèmes naturels et a un rôle central dans le cycle du combustible nucléaire. L’uranium peut se trouver sous plusieurs états d’oxydation. L'U(VI) est l'état d'oxydation le plus pertinent dans la plupart des eaux de surface
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Fedi, Baptiste. "Etude multi-échelle des mécanismes d'élaboration de revêtements d'alliage zinc-nickel à base d'électrolytes alcalins : germination, complexation et structures cristallines." Thesis, Besançon, 2016. http://www.theses.fr/2016BESA2078.

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Les travaux présentés dans ce mémoire ont pour but d’approfondir la compréhension des mécanismes d’élaboration de revêtements électrolytiques de zinc-nickel obtenus à partir d’électrolytes alcalins. Les dépôts de zinc-nickel contenant entre 12% et 16%de nickel, connus pour leur performances anti-corrosion, nécessitent l’utilisation d’agents complexants afin de d’obtenir des formes solubles et réductibles du nickel dans un électrolyte à base de zincates à haut pH. Une étude des mécanismes de complexation a permis d’améliorer la compréhension du rôle respectif des agents complexants et de leurs
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Book chapters on the topic "Surface complexation structure"

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Sposito, Garrison. "The Spectroscopic Detection of Surface Species." In The Surface Chemistry of Natural Particles. Oxford University PressNew York, NY, 2004. http://dx.doi.org/10.1093/oso/9780195117806.003.0002.

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Abstract Surface complexation models have been applied successfully to soil colloids to bring matters full circle; but, like their predecessors, they rely solely on prior molecular concepts and are tested only by goodness-of-fit to adsorption data. Since the model assumptions are so different and the models so plausible, one is left to wonder what physical truth they bear. One fears that the fog will lift only to reveal a Tower of Babel. It is inevitable that methodologies not equipped to explore molecular structure will produce ambiguous results in the study of surface speciation. The method
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Manju, Megha Jain, Sanjay Kumar, Ankush Vij, and Anup Thakur. "Metal-Organic Frame Works (MOFs) for Smart Applications." In Synthesis and Applications of Semiconductor Nanostructures. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815080117123040012.

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Metal-organic framework (MOF) is a class of materials, which is formed by combining metal/inorganic and organic linkers, resulting in the formation of a framework with high surface area and permanent porosity. The freedom to vary inorganic and organic linkers stimulated the synthesis of thousands of MOF structures, for their utility in various applications. The presence of high porosity, high surface area and high free volume made these materials a perfect choice among the class of solid adsorbents. The metal nodes, tunable pore, versatile structure and functionalized surface allow various typ
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Murray, James W. "Marine Trace Element Biogeochemistry." In Aquatic Geochemical Oceanography. Oxford University PressOxford, 2025. https://doi.org/10.1093/9780191853241.003.0009.

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Abstract In this chapter the aquatic and biogeochemistry of trace elements in seawater is discussed. All elements with concentrations less than 1 mg kg−1 are considered trace elements (not all are metals!). Particulate size distributions are defined. The chemical speciation, which includes, hydrolysis reactions, inorganic complex formation, organic complex formation and colloidal forms is presented. Solubility reactions are defined. Scavenging from seawater, which includes surface complexation reactions, coagulation and Brownian pumping, is discussed. Redfield-like biological uptake is reviewe
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Brezonik, Patrick L., and William A. Arnold. "Surface Chemistry and Sorption." In Water Chemistry, 2nd ed. Oxford University PressNew York, 2022. http://dx.doi.org/10.1093/oso/9780197604700.003.0012.

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Abstract This chapter focuses on how surfaces on suspended particles, nanoparticles, and sediments affect solute behavior and concentrations. The molecular structures of solids that yield various kinds of surfaces and interfaces are described, along with features of surfaces themselves. Forces that attract/repel solutes to/from surfaces are described with emphasis on electrical charge and excess surface energy, called surface tension. A major focus is on sorption, i.e., the accumulation of solutes onto surfaces. The Freundlich and Langmuir models that quantify this process are described along
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Madhavi, T., K. Kusuma, K. Sai Manogna, B. Deva Prasad Raju, and Prof N. John Sushma. "A NOVEL PHYTO FORMULATION OF BACOPA PHOSPHOLIPID COMPLEX SPECTRAL CHARACTERIZATION AND ITS PHARMACOKINETIC STUDIES." In Futuristic Trends in Biotechnology Volume 3 Book 5. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bjbt5p2ch3.

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A novel phyto formulation, Bacopa phospholipid complex (BPC) was developed, its physicochemical properties and pharmacokinetic studies were evaluated in albino rats for its improved absorption and bioavailability, and compared with Bacopa monniera extract (Bm). The current study comprises the analytical parameters such as Phase contrast microscope, SEM, TEM, AFM, FTIR, XRD, Zeta potential and TGA/DTA were used to characterize the BPC. The structure of BPC was assed as spherical under microscopic view, asymmetrical and spheroid shape vesicles under SEM, in which Bm was embedded in the phospholi
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Bunker, Bruce C., and William H. Casey. "Bio-inspired Synthesis of Oxide Nanostructures." In The Aqueous Chemistry of Oxides. Oxford University Press, 2016. http://dx.doi.org/10.1093/oso/9780199384259.003.0015.

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Nature is capable of building magnificently intricate and detailed structures out of otherwise boring materials such as calcium carbonate and silica. Anyone who has taken their children to see dinosaurs at a Natural History museum or visited natural wonders such as the Petrified Forest in Arizona are familiar with the natural process called fossilization by which the tissues of dead organisms are eventually replicated by objects of stone. Most living organisms (including humans) are critically dependent on more deliberate and controlled biomineralization phenomena that lead to the production o
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Grabowski, Sławomir J. "Hydrogen Bonds and Halogen Bonds – A Comparative Study." In Intermolecular Interactions in Crystals: Fundamentals of Crystal Engineering. The Royal Society of Chemistry, 2017. http://dx.doi.org/10.1039/bk9781782621737-00478.

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The halogen and hydrogen bonds are analyzed and compared. These interactions may be classified as σ-hole bonds steered by electrostatic forces since the arrangement of the units forming complexes or greater aggregates is determined by the distribution of electrostatic potential at the molecular surfaces. However, for both interactions the effects connected with the electron charge density shifts as a result of complexation are also pronounced. Numerous common properties for the A–H⋯B hydrogen bond, HB, and the A–X⋯B (X is the halogen atom) halogen bond, XB, may be exhibited; the directionality
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Conference papers on the topic "Surface complexation structure"

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Golubović, L., Violeta Jevtović, Aleksandra Rakić, Dušan Dimić, and Jasmina Dimitrić Marković. "CRYSTALLOGRAPHIC AND HIRSHFELD SURFACE ANALYSIS OF TWO COPPER(II) PYRIDOXAL-AMINOGUANIDINE COMPLEXES CONTAINING DIFFERENT COUNTERIONS (NO3− and SO42−)." In 17th International Conference on Fundamental and Applied Aspects of Physical Chemistry. Society of Physical Chemists of Serbia, 2024. https://doi.org/10.46793/phys.chem24ii.581g.

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Pyridoxal-aminoguanidine (PLAG) is a tridentate ligand known for its complexation with different transition metals. These complexes possess promising anticancer, antioxidant, and catalytic activities. In this contribution, two novel Cu(II)-PLAG complexes with different counterions (NO3− and SO42−) were synthesized, and their crystal structures were solved. The structural differences resulted from the size and charge of counterions leading to the square-pyramidal geometry of the first and square-planar geometry of the second. The Hirshfeld surface analysis was employed to obtain quantitative pa
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Igder, M., K. S. Sorbie, G. Sneddon, L. Boak, E. Mackay, and M. Singleton. "Retention and Release of Commercial and Purified Phosphonate Scale Inhibitors on Carbonate Substrate." In SPE International Conference on Oilfield Chemistry. SPE, 2025. https://doi.org/10.2118/224242-ms.

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Abstract This paper describes a study of the interactions of phosphonate scale inhibitor with carbonate substrate. Much previous work has appeared on this topic, but here we present results which attempt to address some gaps identified in previous studies of this subject. The experimental programme focused on three main areas: (i) static adsorption/ compatibility analysis of phosphonate scale inhibitor at both 95°C and room temperature (RT). Static tests revealed that SI retention mechanisms are significantly more active at elevated temperatures compared to RT conditions, where only minimal ad
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Reports on the topic "Surface complexation structure"

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Myneni, Satish, C. In-situ Evaluation of Soil Organic Molecules: Functional Group Chemistry Aggregate Structures, Metal & Surface Complexation Using Soft X-Ray. Office of Scientific and Technical Information (OSTI), 2008. http://dx.doi.org/10.2172/942132.

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