High efficiency photothermal synergistic degradation of toluene achieved through the utilization of a nickel foam loaded Pt-CeO2 monolithic catalyst

Cheng, Lujun; Li, Yingshuang; Fan, Jiahai; Xie, Man; Liu, Xueyan; Sun, Pengfei; Dong, Xiaoping

doi:10.1016/j.seppur.2023.125742

Cited by 11 publications

(3 citation statements)

References 61 publications

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“…A series of quenching experiments were conducted to determine the presence of active substances in the catalytic ozonation process using the 0.2-Ni 0.67 Mn 0.33 OOH/ACFA catalyst. As depicted in Figure 11 , the impact of reactive oxygen species on the degradation performance of sodium acetate was assessed by quenching •O 2 – , •OH, and 1 O 2 with p-benzoquinone (p-BQ), tert-butanol (TBA), and L-histidine (L-HIS) as trapping agents, respectively [ 42 , 43 ]. The removal efficiency of sodium acetate decreased from 56.2% to 22.3% and 48.9% with the addition of TBA and L-HIS, respectively, while it dropped to 11.3% with the inclusion of p-BQ.…”

Section: Resultsmentioning

confidence: 99%

Degradation of Sodium Acetate by Catalytic Ozonation Coupled with MnOx/NiOOH-Modified Fly Ash

Chen,

Zhang,

Shao

et al. 2024

Toxics

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Fly ash, a type of solid waste generated in power plants, can be utilized as a catalyst carrier to enhance its value-added potential. Common methods often involve using a large amount of alkali for preprocessing, resulting in stable quartz and mullite forming silicate dissolution. This leads to an increased specific surface area and pore structure. In this study, we produced a catalyst composed of MnOx/NiOOH supported on fly ash by directly employing nickel hydroxide and potassium permanganate to generate metal active sites over the fly ash surface while simultaneously creating a larger specific surface area and pore structure. The ozone catalytic oxidation performance of this catalyst was evaluated using sodium acetate as the target organic matter. The experimental results demonstrated that an optimal removal efficiency of 57.5% for sodium acetate was achieved, surpassing even that of MnOx/NiOOH supported catalyst by using γ-Al2O3. After loading of MnOx/NiOOH, an oxygen vacancy is formed on the surface of fly ash, which plays an indirect oxidation effect on sodium acetate due to the transformation of ozone to •O2− and •OH over this oxygen vacancy. The reaction process parameters, including varying concentrations of ozone, sodium acetate, and catalyst dosage, as well as pH value and the quantitative analysis of formed free radicals, were examined in detail. This work demonstrated that fly ash could be used as a viable catalytic material for wastewater treatment and provided a new solution to the added value of fly ash.

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Section: Resultsmentioning

confidence: 99%

Degradation of Sodium Acetate by Catalytic Ozonation Coupled with MnOx/NiOOH-Modified Fly Ash

Chen,

Zhang,

Shao

et al. 2024

Toxics

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“…Therefore, the escalating climate issues in China fundamentally stem from the contradiction between excessive consumption of fossil fuels and inadequate carbon sequestration capacities, resulting in carbon imbalance. Some argue that the disparities in carbon imbalance among different regions became more pronounced between 2011 and 2019, whereas such differences were not as significant before 2010 [1,2]. Consequently, we aim to delve deeper into the temporal-spatial evolution characteristics of China's carbon imbalance and its driving factors, aiming to provide a scientific basis for addressing climate change, environmental protection, and sustainable development.…”

Section: Introductionmentioning

confidence: 99%

“…This approach integrates data on carbon emissions and absorption, offering a new perspective on the carbon imbalance scenario. (2) The evolution patterns of carbon emissions and absorption in different regions and periods across China reveal intricate dynamics. By unveiling the dynamic evolution characteristics and spatial disparities in carbon imbalance among Chinese provinces, we aim to comprehend the current status and evolving patterns of carbon imbalance.…”

Section: Introductionmentioning

confidence: 99%

The Temporal–Spatial Evolution Characteristics and Influential Factors of Carbon Imbalance in China

Liu,

Lei,

Zhang

2024

Sustainability

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The ongoing progress of industrialization and urbanization has exacerbated the imbalance between carbon emissions and absorption, leading to heightened risks of climate change, such as frequent occurrences of extreme weather events. Clarifying the driving forces and temporal–spatial evolution characteristics of China’s carbon balance holds significant theoretical value in understanding the systemic nature and patterns of interaction between carbon emissions and absorption. We utilize provincial panel data from 2005 to 2021 in China and a spatial Durbin model to explore the spatial spillover effects of carbon imbalance and its influencing factors. The results indicate a gradual exacerbation of carbon imbalance in China over time. There exists a spatially positive correlation pattern in provincial carbon imbalance distribution. From 2005 to 2010, intra-regional differences in carbon imbalance levels were a significant contributor to China’s overall carbon imbalance disparity, while from 2011 to 2019, inter-regional differences played a more substantial role. Given the apparent phenomena of population aggregation, industrial concentration, and economic interdependence among provinces, changes in population size, economic growth, and industrial structure exacerbate the level of carbon imbalance in spatially correlated regions. Conversely, due to knowledge and technology spillovers, improvements in energy efficiency facilitated by the flow of production factors like capital aid in the governance of carbon imbalance in spatially associated areas. We emphasize that local governments should focus on a regional integration perspective in carbon imbalance governance and strategically coordinate with neighboring provinces and cities to advance carbon imbalance governance. The findings provide theoretical support for understanding and effectively managing the situation of carbon imbalance in China.

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Morphologic and microstructural modulation of graphitic carbon nitride through EDTA-2Na mediated supramolecular self-assembly route: Enhanced visible-light-driven photocatalytic activity for antibiotic degradation

Shao,

Liu,

Wang

et al. 2024

Applied Surface Science

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High efficiency photothermal synergistic degradation of toluene achieved through the utilization of a nickel foam loaded Pt-CeO2 monolithic catalyst

Cited by 11 publications

References 61 publications

Degradation of Sodium Acetate by Catalytic Ozonation Coupled with MnOx/NiOOH-Modified Fly Ash

Degradation of Sodium Acetate by Catalytic Ozonation Coupled with MnOx/NiOOH-Modified Fly Ash

The Temporal–Spatial Evolution Characteristics and Influential Factors of Carbon Imbalance in China

Morphologic and microstructural modulation of graphitic carbon nitride through EDTA-2Na mediated supramolecular self-assembly route: Enhanced visible-light-driven photocatalytic activity for antibiotic degradation

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