Coagulation and Dissolution of Zinc Oxide Nanoparticles in the Presence of Humic Acid Under Different pH Values

DongYa-nan,; Lixiang,; Huang, Yuxiong; Wang, Hong Tao; LiFengting,

doi:10.1089/ees.2015.0396

Cited by 9 publications

(6 citation statements)

References 41 publications

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“…The addition of a coadsorbate into the dye solution has been reported to surmount the issue of dye aggregation on the TiO 2 anode surface during sensitization [4,22]. CDCA is the most popular coadsorbate for porphyrin dyes [12,13,14,15,16,17,18,19]. In this work, the YD2-o-C8 sensitizations of the ZnO anode were further carried out in an ethanol solution of 0.1 mM YD2-o-C8 and 0.5 mM CDCA.…”

Section: Resultsmentioning

confidence: 99%

“…Moreover, the influences of NPs on human health and ecological systems have been a concern in increasing the applications of NPs to commercial products [13]. Establishing effective approaches for the removal of ZnO NPs from aquatic environments has attracted considerable attention [14], which may potentially solve the issue of using ZnO NPs in large-scale DSSC application.…”

Section: Introductionmentioning

confidence: 99%

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Porphyrin Dye-Sensitized Zinc Oxide Aggregated Anodes for Use in Solar Cells

et al. 2016

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Porphyrin YD2-o-C8-based dyes were employed to sensitize room-temperature (RT) chemical-assembled ZnO aggregated anodes for use in dye-sensitized solar cells (DSSCs). To reduce the acidity of the YD2-o-C8 dye solution, the proton in the carboxyl group of a porphyrin dye was replaced with tetrabuthyl ammonium (TBA + ) in this work. The short-circuit current density (Jsc) of the YD2-o-C8-TBA-sensitized ZnO DSSCs is higher than that of the YD2-o-C8-sensitized cells, resulting in the improvement of the efficiency of the YD2-o-C8-based ZnO DSSCs. With an appropriate incorporation of chenodeoxycholic acid (CDCA) as coadsorbate, the Jsc and efficiency of the YD2-o-C8-TBA-sensitized ZnO DSSC are enhanced due to the improvement of the incident-photon-to-current efficiency (IPCE) values in the wavelength range of 400-450 nm. Moreover, a considerable increase in Jsc is achieved by the addition of a light scattering layer in the YD2-o-C8-TBA-sensitized ZnO photoanodes. Significant IPCE enhancement in the range 475-600 nm is not attainable by tuning the YD2-o-C8-TBA sensitization processes for the anodes without light scattering layers. Using the RT chemical-assembled ZnO aggregated anode with a light scattering layer, an efficiency of 3.43% was achieved in the YD2-o-C8-TBA-sensitized ZnO DSSC.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Porphyrin Dye-Sensitized Zinc Oxide Aggregated Anodes for Use in Solar Cells

et al. 2016

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“…The pH of HA was adjusted to 10 using NaOH to ensure complete dissolution of HA. The solution was stirred at 600 rpm for overnight to improve further stability [25]. All the stock solutions' pH values were adjusted to 7 prior to storage in the dark at 4 • C. The stock solutions of inorganic salts with 0.1 M ionic strength (IS) were prepared by adding 7.45 g KCl, 14.2 g Na 2 SO 4 and 20.32 g MgCl 2 .6H2O in 1 L solution respectively.…”

Section: Solution and Synthetic Waters Preparationmentioning

confidence: 99%

Taguchi Orthogonal Array Dataset for the Effect of Water Chemistry on Aggregation of ZnO Nanoparticles

Khan

Inam

Park

et al. 2018

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The dynamic nature of engineered nanoparticle (ENP) aggregation behavior and kinetics are of paramount importance in the field of toxicological and environmental nanotechnology. The Taguchi orthogonal array (OA) L 27 (3 13) matrix based on a fractional factorials design was applied to systematically evaluate the contribution and significance of water chemistry parameters (pH, temperature, electrolyte, natural organic matter (NOM), content and type) and their interactions in the aggregation behavior of zinc oxide nanoparticles (ZnO NPs). The NPs were dispersed into the solution using a probe-sonicator cell crusher (Bio-safer, 1200-90, Nanjing, China). The data were obtained from UV-Vis spectroscopy (Optizen 2120 UV, Mecasys, Daejeon, Korea), Fourier Transform Infrared Spectrometery (FT-IR 4700, spectroscopy, a JASCO Analytical Instruments, Easton, Pennsylvania, USA) and particle electrophoresis (NanoZS, Zetasizer, Malvern Instruments Ltd., Worcestershire, UK). The dataset revealed that Taguchi OA matrix is an efficient approach to study the main and interactive effects of environmental parameters on the aggregation of ZnO NPs. In addition, the aggregation profile of ZnO NPs was significantly influenced by divalent cations and NOM. The result of the FT-IR data presents a possible mechanism of ZnO NP stabilization in the presence of different NOM. This data may be helpful to predict the aggregation behavior of ZnO NPs in environmental and ecotoxicological contexts.

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Section: Solution and Synthetic Waters Preparationmentioning

confidence: 99%

Taguchi Orthogonal Array Dataset for the Effect of Water Chemistry on Aggregation of ZnO Nanoparticles

Khan¹,

Inam²,

Park³

et al. 2018

Preprint

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The extensive use of engineered nanoparticles (ENPs) such as zinc oxide nanoparticles (ZnO NPs) in various commercial fields has spurred significant concern about its possible toxicological effects of ZnO NPs on human health and eco-system. Therefore, it is substantial to understand the aggregation phenomena which could attenuate this effect. This data article provides information on aggregation of ZnO NPs under the influence of various parameters of water chemistry. Moreover, Taguchi orthogonal array L27(313) design matrix was used to evaluate the effect of multiple parameters in aqueous solution. The data were obtained from single beam UV-Vis spectrophotometer (Optizen 2120 UV, Mecasys, Korea) using Optizenview 4.2.5 PC interference software, Fourier transform infrared spectrometer (FT/IR-4700, spectroscopy, JASCO Analytical Instruments, Easton, USA) and particle electrophoresis (NanoZS, Zetasizer, Malvern Instruments Ltd, Worcestershire, UK). The dataset draws attention on dominant parameters influencing aggregation of ZnO NPs in water. The analysis of variance (ANOVA) data revealed that electrolyte concentration, type and natural organic matter (NOM) concentration were the most significant parameters. Furthermore, FT-IR data presents a possible mechanism of ZnO NPs stabilization in the presence of different NOM. This data will be helpful for the development of environmental risk assessment strategies and prediction of fate and mobility of other ENPs in the aquatic environment.

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Coagulation and Dissolution of Zinc Oxide Nanoparticles in the Presence of Humic Acid Under Different pH Values

Cited by 9 publications

References 41 publications

Porphyrin Dye-Sensitized Zinc Oxide Aggregated Anodes for Use in Solar Cells

Porphyrin Dye-Sensitized Zinc Oxide Aggregated Anodes for Use in Solar Cells

Taguchi Orthogonal Array Dataset for the Effect of Water Chemistry on Aggregation of ZnO Nanoparticles

Taguchi Orthogonal Array Dataset for the Effect of Water Chemistry on Aggregation of ZnO Nanoparticles

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