Effect of zeta potential on properties of foamed colloidal suspension

Huo, Wenlong; Zhang, Xiaoyan; Gan, Ke; Chen, Yugu; Xu, Jie; Yang, Jinlong

doi:10.1016/j.jeurceramsoc.2018.08.035

Cited by 78 publications

(37 citation statements)

References 35 publications

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“…Fine bubbles are successfully applied for the defouling of various surfaces, cleaning of sanitary facilities and in flotation processes (Tao, 2005; Wang, Wang, Yan, Wang, & Cao, 2017), and wastewater treatment (Wang et al, 2019; Khuntia, Majumder, & Ghosh, 2012; Temesgen, Bui, Han, Kim, & Park, 2017). The reported charged surface of small bubbles results in a lower coalescence, bursting tendency, and increased foam formation (Collins, Motarjemi, & Jameson, 1978; Huo et al, 2019; Oliveira & Rubio, 2011). In consequence, the introduced shear forces compared to macrobubbles are reduced as illustrated in Figure 1 (Duval, Adichtchev, Sirotkin, & Mermet, 2012; Ushikubo et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Comparative investigation of fine bubble and macrobubble aeration on gas utility and biotransformation productivity

Thomas

Ohde

Matthes

et al. 2020

Biotech & Bioengineering

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The sufficient provision of oxygen is mandatory for enzymatic oxidations in aqueous solution, however, in process optimization this still is a bottleneck that cannot be overcome with the established methods of macrobubble aeration. Providing higher mass transfer performance through microbubble aerators, inefficient aeration can be overcome or improved. Investigating the mass transport performance in a model protein solution, the microbubble aeration results in higher k L a values related to the applied airstream in comparison with macrobubble aeration. Comparing the aerators at identical k L a of 160 and 60 1/h, the microbubble aeration is resulting in 25 and 44 times enhanced gas utility compared with aeration with macrobubbles. To prove the feasibility of microbubbles in biocatalysis, the productivity of a glucose oxidase catalyzed biotransformation is compared with macrobubble aeration as well as the gas-saving potential. In contrast to the expectation that the same productivities are achieved at identically applied k L a, microbubble aeration increased the gluconic acid productivity by 32% and resulted in 41.6 times higher oxygen utilization. The observed advantages of microbubble aeration are based on the large volume-specific interfacial area combined with a prolonged residence time, which results in a high mass transfer performance, less enzyme deactivation by foam formation, and reduced gas consumption. This makes microbubble aerators favorable for application in biocatalysis.

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Section: Introductionmentioning

confidence: 99%

Comparative investigation of fine bubble and macrobubble aeration on gas utility and biotransformation productivity

Thomas

Ohde

Matthes

et al. 2020

Biotech & Bioengineering

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“…Since the value of zeta potential determines the amount of electrostatic repulsion between particles, the zeta potential is intrinsically related to the stability of colloidal dispersions. However, the effect of the zeta potential on properties of foamed suspensions remains poorly explored [ 35 ]. In the current study, the foam stability of WPH–PS compositions generally increased with the increase of the absolute value of zeta potential.…”

Section: Resultsmentioning

confidence: 99%

Hypotensive and Hepatoprotective Properties of the Polysaccharide-Stabilized Foaming Composition Containing Hydrolysate of Whey Proteins

et al. 2021

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Whey protein hydrolysates (WPHs) are one of the most promising sources of biofunctional peptides with such beneficial properties as antioxidant, antihypertensive, anti-inflammatory and others. WPHs also could be used as foaming agents for aerated products (e.g., milk shake type drinks). However, WPH alone has a bitter taste and foamed WPH should be stabilized by additional ingredients. Here, we present a composition including WPH and three polysaccharides—pumpkin pectin, sodium alginate and ι-carrageenan—used as foam stabilizers. Polysaccharide content was selected according to foaming, organoleptic antioxidant and angiotensin-I-converting enzyme inhibitory characteristics of the resulted composition. Further, the hypotensive, antioxidant and hepatoprotective properties of the composition were proved by in vivo tests performed in spontaneously hypertensive rats and Wistar rats with CCl4-induced hepatic injury.

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“…The reaction behavior in the medium is governed by the facing shear surfaces of two (or more) dispersed particles, and the possibility of reaction is determined by the net energy of attraction and repulsion as shown below. where the subscripts A and R indicate attraction and repulsion, respectively. The attractive force, mainly the van der Waals force represented by the Hamaker constant ( A ) which is related to the materials dielectric constant ε (eq ), where the van der Waals force between different particles in the medium can be judged by the combined Hamaker constant of a particle–medium–particle system calculated by eq , where A L and A F are the Hamaker constants of different particles and A m that for the medium, respectively.…”

Section: Resultsmentioning

confidence: 99%

Suppressing Fe–Li, Ni–Li Antisite Defects in LiFePO₄ and LiNi_1/3Co_1/3Mn_1/3O₂ by Optimized Synthesis Methods

Zhang

Wang

et al. 2020

ACS Appl. Energy Mater.

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Antisite defects in LiFePO 4 and LiNi 1/3 Co 1/3 Mn 1/3 O 2 cathode materials will severely decrease Li + diffusion ability and the cell capacity. However, the mechanism of constraining antisite defects during the hydrothermal route is not fully understood. Herein, the Fe−Li, Ni−Li antisite defects in LiFePO 4 and LiNi 1/3 Co 1/3 Mn 1/3 O 2 cathode materials are successfully suppressed by optimized synthesis methods. As a result, their discharge capacity and rate performance at room and low temperature are significantly enhanced owing to smaller potential difference, less charge transfer resistance, reduced polarization, and enhanced Li + diffusion coefficient. The comprehensive investigation of synthesis parameters indicates that high attraction and less repulsion force governed by the zeta potential is crucial for making ideal cathode materials by facilitating coalescence, providing the sufficient cations occupation needed, and constructing uniform layer-by-layer surroundings for the precursors.

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Effect of zeta potential on properties of foamed colloidal suspension

Cited by 78 publications

References 35 publications

Comparative investigation of fine bubble and macrobubble aeration on gas utility and biotransformation productivity

Comparative investigation of fine bubble and macrobubble aeration on gas utility and biotransformation productivity

Hypotensive and Hepatoprotective Properties of the Polysaccharide-Stabilized Foaming Composition Containing Hydrolysate of Whey Proteins

Suppressing Fe–Li, Ni–Li Antisite Defects in LiFePO₄ and LiNi_1/3Co_1/3Mn_1/3O₂ by Optimized Synthesis Methods

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Effect of zeta potential on properties of foamed colloidal suspension

Cited by 78 publications

References 35 publications

Comparative investigation of fine bubble and macrobubble aeration on gas utility and biotransformation productivity

Comparative investigation of fine bubble and macrobubble aeration on gas utility and biotransformation productivity

Hypotensive and Hepatoprotective Properties of the Polysaccharide-Stabilized Foaming Composition Containing Hydrolysate of Whey Proteins

Suppressing Fe–Li, Ni–Li Antisite Defects in LiFePO4 and LiNi1/3Co1/3Mn1/3O2 by Optimized Synthesis Methods

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Suppressing Fe–Li, Ni–Li Antisite Defects in LiFePO₄ and LiNi_1/3Co_1/3Mn_1/3O₂ by Optimized Synthesis Methods