Kinetic Modeling of Ozone Decomposition and Peroxone Oxidation of Toluene in an Aqueous Phase Using <i>ab Initio</i> Calculations

Esfahani, Mehrshad Parchei; Gates, Ian D.; Visscher, Alex De

doi:10.1021/acs.iecr.9b04960

Cited by 8 publications

(4 citation statements)

References 68 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Upon simultaneous radicals' formation, when the ROS number is higher than the pollutant number, the ROS will react with others through a terminating pathway to generate secondary ROS (with low reduction potential) and hydrogen peroxide (H 2 O 2 ). Those secondary ROS then predicted it would dominate the oxidation process rather than the primary radicals (Esfahani et al, 2019), while H 2 O 2 will contribute to reducing pH value, as seen in Figure 9.…”

Section: Figurementioning

confidence: 98%

Combination of ozone-based advanced oxidation process and nanobubbles generation toward textile wastewater recovery

Hutagalung

Rafryanto²,

Sun

et al. 2023

Front. Environ. Sci.

View full text Add to dashboard Cite

The intricate nature of various textile manufacturing processes introduces colored dyes, surfactants, and toxic chemicals that have been harmful to ecosystems in recent years. Here, a combination ozone-based advanced oxidation process (AOP) is coupled with a nanobubbles generator for the generation of ozone nanobubbles (NB) utilized the same to treat the primary effluent acquired from textile wastewaters. Here we find several key parameters such as chemical oxygen demand ammonia content (NH3), and total suspended solids indicating a substantial recovery in which the respective percentages of 81.1%, 30.81%, and 41.98%, upon 300 min residence time are achieved. On the other hand, the pH is shifted from 7.93 to 7.46, indicating the generation of hydrogen peroxide (H2O2) due to the termination reaction and the self-reaction of reactive oxygen species (ROS). We propose that the reactive oxygen species can be identified from the negative zeta potential measurement (−22.43 ± 0.34 mV) collected in the final state of treatment. The combined method has successfully generated ozone nanobubbles with 99.94% of size distributed in 216.9 nm. This highlights that enhancement of ozone’s reactivity plays a crucial role in improving the water quality of textile wastewater towards being technologically efficient to date.

show abstract

Section: Figurementioning

confidence: 98%

Combination of ozone-based advanced oxidation process and nanobubbles generation toward textile wastewater recovery

Hutagalung

Rafryanto²,

Sun

et al. 2023

Front. Environ. Sci.

View full text Add to dashboard Cite

show abstract

“…Medical researchers have demonstrated that the using and accessing of human to O 3 molecules in high time can make the respiratory burning [4]. The O 3 molecules can make the bust pain, in ammation, tissue devastation, reducing the lung ability, reducing the smell sense and cardiovascular matters [5].…”

Section: Introductionmentioning

confidence: 99%

O3 decomposition to O2 on surfaces of Silicon nanocage and Carbon nanocage as effective catalysts

Al-dolaimy,

Al-Khafaji,

Ibrahim

et al. 2023

Preprint

View full text Add to dashboard Cite

In this study, potential of Sc-C82 and Sc-Si82 as effective catalysts for O3 decomposition are examined through LH and ER mechanisms. The activation barrier energy and Gibbs free energy of reaction steps for O3 decomposition through the of LH and ER mechanisms on Sc-C82 and Sc-Si82 nanocages are calculated. Results shown that the Sc-C82 and Sc-Si82 nanocages have the negative values of ∆Eformation are stable nano-catalysts from thermodynamic viewpoints. The Sc atoms are catalytic positions to adsorb the O3 molecules and other important species of O3 decomposition through LH and ER mechanisms. The Sc-Si82 nanocage for O3 decomposition has lower Eacivation values and more negative ∆Greaction values than Sc-C82 nanocage. The Eacivation value of rate-determining step for O3 decomposition through LH mechanism is lower than ER mechanism. The Sc-Si82 nanocage has higher catalytic activity than Sc-C82 nanocage for O3 decomposition. The Sc-C82 and Sc-Si82 nanocages can catalyze the reaction steps of O3 decomposition through LH and ER mechanisms with high performance at normal temperature.

show abstract

“…Organic residues are hazardous, non‐biodegradable in the ecosystem, which can constantly accumulate and migrate in the soil, atmosphere, and water resources. [ 2 ] There are many ways including chemical coagulation, ozone oxidation, photocatalytic degradation and adsorption [ 3–6 ] to remove organic pollutants from contaminated water. Among them, adsorption is the currently advocated technique for organic pollutants from wastewater in terms of high efficiency and excellent applicability.…”

Section: Introductionmentioning

confidence: 99%

“…

…”

mentioning

confidence: 99%

Self‐Thickening and Self‐Strengthening 3D Printing Magnetic Cellulose‐Based Aerogel for Adsorption and Recovery of Methylene Blue

Zhang

Chen

Jiang

et al. 2021

Advanced Sustainable Systems

View full text Add to dashboard Cite

There are many ways including chemical coagulation, ozone oxidation, photocatalytic degradation and adsorption [3][4][5][6] to remove organic pollutants from contaminated water. Among them, adsorption is the currently advocated technique for organic pollutants from wastewater in terms of high efficiency and excellent applicability. [7,8] However, the potential drawback of this method is that it will leave undesirable by-products and adsorbed precipitants in the environment. This has been addressed by using magnetic carriers, which can be collected by an external magnetic field. [9,10] Therefore, the magnetic adsorption strategy is the most promising method for removing organic pollutants.Because of abundant chemical groups and a substantial porous structure, aerogel is accepted as an effective adsorbent for removing hazardous pollutants. Li et al. [11] have developed a woodinspired nanocellulose aerogel adsorbent with excellent selective capability, superfast adsorption, and easy regeneration. Guo et al. [12] have designed a cellulose nanofiber (CNF) framework to form an eco-friendly and low-cost microporous aerogel to capture Cu(II) and organic contamination. In recent years, cellulose has become an intriguing host due to its excellent characteristics, such as high specific surface area, high aspect ratio, well chemical stability, and natural biodegradability. [13][14][15] Hu et al. [16] have reported that an effective strategy to transform bulk cellulose directly into a high-performance structural material by hot-pressing. Li et al. [17] have obtained a printed, recyclable, ultra-strong, and ultra-tough graphite structural material with high tensile strength (up to 1.0 GPa) and toughness (up to 30.0 MJ m −3 ). They can not only provide a natural skeleton for assembling a 3D network structure but also offer a large amount of surface hydroxyl groups for various treatments with the aim of improving its functionalities and performances. [14,[18][19][20] Meanwhile, the Fe 3 O 4 nanoparticles are highly promising nanomaterials in the fields of catalyst support, [21] oil-water separation, [22] and information storage [23] on account of evident advantages, such as high specific surface area, chemical stability, simple extraction, and nontoxicity. More importantly, relatively complex magnetic materials are applied for organic 3D printing of biomass has attracted increasing attention and can meet the requirements of various practical applications. Herein, 3D printing of a cellulose-based aerogel is achieved by direct ink writing based on a selfthickening and self-strengthening strategy, followed by freezing drying. The magnetic cellulose-based aerogels (MCAs) containing Fe 3 O 4 nanoparticles are ideal adsorbents for adsorbing and removing organic pollutants from water. As catchers and carriers for magnetic removal, MCAs (Fe 3 O 4 nanoparticles and cellulose) provide large active sites, which allows organic pollution to be quickly and stably bound on the surface. The adsorption effect of methylene blue (MB) is dependent ...

show abstract

Kinetic Modeling of Ozone Decomposition and Peroxone Oxidation of Toluene in an Aqueous Phase Using ab Initio Calculations

Cited by 8 publications

References 68 publications

Combination of ozone-based advanced oxidation process and nanobubbles generation toward textile wastewater recovery

Combination of ozone-based advanced oxidation process and nanobubbles generation toward textile wastewater recovery

O3 decomposition to O2 on surfaces of Silicon nanocage and Carbon nanocage as effective catalysts

Self‐Thickening and Self‐Strengthening 3D Printing Magnetic Cellulose‐Based Aerogel for Adsorption and Recovery of Methylene Blue

Contact Info

Product

Resources

About