Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"dye adsorption"”.
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NONLINEAR AND ULTRAFAST OPTICAL STUDIES OF INTERFACIAL PROCESSES IN PHOTOVOLTAIC NANOMATERIALS
… can be improved remains elusive. For example, dye-sensitized solar cells (DSSC) exhibit high conversion efficiency when acetonitrile is used to prepare both the working electrode and the electrolyte. However, the mechanism explaining exactly how solvent influences device performance has not yet …
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Iron-Doped Titanium Dioxide Nanomaterials: Synthesis, Characterization and Photodegradation Catalytic Behavior
… their accessibility to binding especially with dyes, such as N3 and Z907 dye, for the first time. The results shows the coexistence of phases in TiO2 as well as adsorption pattern of the dyes on the surface of the TiO2. Finally, The photodegradation of methylene blue has been studied to quantify …
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SYNTHESIS AND CHARACTERIZATION OF MODEL AQUATIC PARTICULATES FOR USE IN SORPTION STUDIES
… hydrous oxide-clay particulates had a limited adsorption capacity for organic matter.</p><p>Attempts to measure surface area through adsorption of cationic dyes were unsuccessful. Dye adsorption on illite varied with the square root of the ionic strength of the dye solution. This trend was …
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Slow pyrolysis of agro-food waste to produce biochar and activated carbon for adsorption of pollutants from model wastewater
… activated carbon were substantiated through the dye adsorption study using model wastewater.
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Fabrication and Dynamic Tuning of Periodic Structures From Holographic Lithography
… to realize superhydrophobicity, enhanced dye adsorption in addition to the photon management in the 3D photonic crystal. Most of current studies on tunable periodic structures show limited tunable optical property ranges, which is attractive to be expanded. 2D shape memory polymer (SMP) …
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The Comparative Study between the Adsorptive Capacity of Activated Carbon Obtained from the Enhanced Hydrothermal Polymerization Process with Conventional Activated Carbons in the Removal of Micropollutants of Concern
Adsorption is one of the most widely used techniques employed for the tertiary treatment of wastewater to remove micropollutants. One of the most popular adsorbents used towards adsorption is activated carbon. However, due to the high cost of the conventional commercial activated carbon (produced …
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Evaluating reactivity and sorptivity of fly ash for use in concrete construction
… the foam index test; (ii) acid blue 80 (AB80) dye adsorption test (spectroscopic method); and (iii) methylene blue test. High variability in foam index test results between different operators were noted, which reflected differences in the degree of shaking applied and difficulties in …
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Establishing nanoscopic structure-function relationships in the working electrodes of dye-sensitized solar cells
Dye-sensitized solar cells are a strong contender for next-generation photovoltaic technology with niche applications as solar-powered windows. The performance of a DSSC is particularly susceptible to the dye sensitizer, which is adsorbed onto the surface of a wide-band-gap semiconductor such as …
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CxNy-materials from supramolecular precursors for “All-Carbon” composite materials
… of the obtained materials was demonstrated with dye degradation experiments. The second part of this thesis was focused on the synthesis of the second component C₂N. Here, a deep eutectic mixture from hexaketocyclohexane and urea was structured using the biopolymer chitosan. This scaffolding …
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Functional application of iron-based metallic glasses in catalysis technology: Design and mechanism
… being employed as catalysts for the industrial dye pollutant treatment, presenting a great potential in achieving actual industrilization. Five dyes with different chemical bondings were treated as the targets for monitoring the catalytic efficiency, reusability and the corresponding mechanism. …
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Synthesis and Characterisation of Layered Double Hydroxides (LDHs) Using Red Mud and their Environmental Applications
… ‘role plays’, i.e., chloride binding study and dye adsorption study, were carried out to further understand the anion removal capacity, thermal stability and ‘memory effect’ of the synthesised products. A material screening test was firstly conducted, suggesting RM-w-CLDH (calcined RM-LDH with …