Coal fly ash and bottom ash low-cost feedstocks for CO2 reduction using the adsorption and catalysis processes

Labidi, Abdelkader; Ren, Haitao; Zhu, Qiuhui; Liang, XinXin; Liang, Jiangyushan; Wang, Hui; Sial, Atif; Padervand, Mohsen; Lichtfouse, Eric; Rady, Ahmed; Allam, Ahmed A.; Wang, Chuanyi

doi:10.1016/j.scitotenv.2023.169179

Cited by 7 publications

(1 citation statement)

References 101 publications

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“…Nevertheless, it is important to acknowledge that a substantial proportion of produced ashes is presently deposited in specifically designated ash landfills and similar sites (7,8) . The utilization of coal ash has the capacity to reduce environmental effect by providing alternative approaches to the difficulties related to its disposal and by mitigating CO 2 emissions (9) . Researches has demonstrated a worldwide pattern of fast reduction in clay deposits due to continuous soil erosion.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Mechanical and Durability Behaviour of a Sustainable Masonry Block Incorporating Agricultural and Industrial Wastes

Prakash,

Srividhya,

Sivakumar

et al. 2024

IJST

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Objectives: The production of conventional cement blocks consumes significant amount of cement. The production of cement, involves significant energy consumption and releases carbon dioxide emissions, contributing to carbon footprint. However, advancements in sustainable masonry block production have been made to minimize these drawbacks. Hence, this research aims to develop a sustainable masonry solid block by incorporating Rice Husk Ash (RHA) and Flay Ash (FA). Methods: The manuscript discusses the mechanical and durability properties of sustainable masonry block and comparing the result with the conventional cement blocks. The materials used are FA, Lime, Gypsum, RHA, Marble Dust Powder (MDP), Stone Quarry Dust (SQD). The solid blocks tested for Compressive strength, Density, Water absorption, Initial rate of water absorption, efflorescence, and chemical resistance. Findings: The results showed that, the addition of RHA, FA, and MDP enhanced the compressive strength of the solid blocks upto 46% when compared to convention cement block. A density reduction of 2.5% was achieved. It also exhibited a reduction in water absorption of 29.2%. IRA tests evident that the sustainable solid blocks shows reduced water absorption levels at both the one-minute and two-minute time intervals in comparison to conventional cement solid blocks. At a one-minute time, the rate of absorption for M4 is 69% lower when compared to conventional cement solid blocks. The RHA, FA and MDP admixed blocks showed better durability properties in terms of efflorescence, and chemical resistance. Novelty : This solid block production method is an innovative methodology that supports the conservation of natural resources, reduces pollution, and preserves the environment. As a result, it encourages the advancement of eco-friendly technology. Keywords: Sustainable building blocks, Fly ash, Lime, Rice husk ash, Marble dust, Stone quarry dust

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Section: Introductionmentioning

confidence: 99%

Experimental Study on Mechanical and Durability Behaviour of a Sustainable Masonry Block Incorporating Agricultural and Industrial Wastes

Prakash,

Srividhya,

Sivakumar

et al. 2024

IJST

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Pivotal Impact Factors in Photocatalytic Reduction of CO₂ to Value‐Added C₁ and C₂ Products

Cui,

Labidi,

Liang

et al. 2024

ChemSusChem

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Over the past decades, CO2 greenhouse emission has been considerably increased, causing global warming and climate change. Indeed, converting CO2 into valuable chemicals and fuels is a desired option to resolve issues caused by its continuous emission into the atmosphere. Nevertheless, CO2 conversion has been hampered by the ultrahigh dissociation energy of C=O bonds, which makes it thermodynamically and kinetically challenging. From this prospect, photocatalytic approaches appear promising for CO2 reduction in terms of their efficiency compared to other traditional technologies. Thus, many efforts have been made in the designing of photocatalysts with asymmetric sites and oxygen vacancies, which can break the charge distribution balance of CO2 molecule, reduce hydrogenation energy barrier and accelerate CO2 conversion into chemicals and fuels. Here, we review the recent advances in CO2 hydrogenation to C1 and C2 products utilizing photocatalysis processes. We also pin down the key factors or parameters influencing the generation of C2 products during CO2 hydrogenation. In addition, the current status of CO2 reduction is summarized, projecting the future direction for CO2 conversion by photocatalysis processes.

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Utilization of magnetite-supported coal fly ash as an efficient adsorbent for Pb metal removal in aqueous environments

Arofah,

Izzati,

Siregar

et al. 2024

Case Studies in Chemical and Environmental Engineering

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Coal fly ash and bottom ash low-cost feedstocks for CO2 reduction using the adsorption and catalysis processes

Cited by 7 publications

References 101 publications

Experimental Study on Mechanical and Durability Behaviour of a Sustainable Masonry Block Incorporating Agricultural and Industrial Wastes

Experimental Study on Mechanical and Durability Behaviour of a Sustainable Masonry Block Incorporating Agricultural and Industrial Wastes

Pivotal Impact Factors in Photocatalytic Reduction of CO₂ to Value‐Added C₁ and C₂ Products

Utilization of magnetite-supported coal fly ash as an efficient adsorbent for Pb metal removal in aqueous environments

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Coal fly ash and bottom ash low-cost feedstocks for CO2 reduction using the adsorption and catalysis processes

Cited by 7 publications

References 101 publications

Experimental Study on Mechanical and Durability Behaviour of a Sustainable Masonry Block Incorporating Agricultural and Industrial Wastes

Experimental Study on Mechanical and Durability Behaviour of a Sustainable Masonry Block Incorporating Agricultural and Industrial Wastes

Pivotal Impact Factors in Photocatalytic Reduction of CO2 to Value‐Added C1 and C2 Products

Utilization of magnetite-supported coal fly ash as an efficient adsorbent for Pb metal removal in aqueous environments

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Product

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Pivotal Impact Factors in Photocatalytic Reduction of CO₂ to Value‐Added C₁ and C₂ Products