Nitrate pollution and its solutions with special emphasis on electrochemical reduction removal

Wang, Jiahong; Sharaf, Faisal; Kanwal, Aqsa

doi:10.1007/s11356-022-24450-2

Cited by 6 publications

(3 citation statements)

References 108 publications

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“…Catalysts convert nitrate to ammonia electrochemically, promoting selective syn- able and transformative process [52]. The electrochemical reduction of nitrate to ammonia using catalysts has the potential to be an effective and environmentally acceptable method for reducing nitrate pollution and promoting sustainable agriculture [53].…”

Section: Role Of Catalysts In Enhancing the Efficiency And Selectivit...mentioning

confidence: 99%

Advancements in Catalysts for Electrochemical Nitrate Reduction: A Sustainable Approach for Mitigating Nitrate Pollution: A Review

Quoie,

Bavumiragira,

Kromah

2024

MRC

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Nitrate pollution is of great importance in both the environmental and health contexts, necessitating the development of efficient mitigation strategies. This review provides a comprehensive analysis of the many catalysts employed in the electrochemical reduction of nitrate to ammonia, and presents a viable environmentally friendly approach to address the issue of nitrate pollution. Hence, the electrochemical transformation of nitrate to ammonia serves the dual purpose of addressing nitrate pollution in water bodies, and is a useful agricultural resource. This review examines a range of catalyst materials such as noble and non-noble metals, metal oxides, carbon-based materials, nitrogen-doped carbon species, metal complexes, and semiconductor photocatalysts. It evaluates catalytic efficiency, selectivity, stability, and overall process optimization. The performance of catalysts is influenced by various factors, including reaction conditions, catalyst structure, loading techniques, and electrode interfaces. Comparative analysis was performed to evaluate the catalytic activity, selectivity, Faradaic efficiency, current density, stability, and durability of the catalysts. This assessment offers significant perspectives on the structural, compositional, and electrochemical characteristics that affect the efficacy of these catalysts, thus informing future investigations and advancements in this domain. In addition to mitigating nitrate pollution, the electrochemical reduction of nitrate to ammonia is in line with sustainable agricultural methods, resource conservation, and the utilization of renewable energy resources. This study explores the factors that affect the catalytic efficiency, provides new opportunities to address nitrate pollution, and promotes the development of sustainable environmental solutions.

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Section: Role Of Catalysts In Enhancing the Efficiency And Selectivit...mentioning

confidence: 99%

Advancements in Catalysts for Electrochemical Nitrate Reduction: A Sustainable Approach for Mitigating Nitrate Pollution: A Review

Quoie,

Bavumiragira,

Kromah

2024

MRC

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“…Among these, electrochemical nitrate reduction (ENR) offers a sustainable, cost-effective, and environmentally friendly solution, but has drawbacks like sludge formation and high overpotential. [10] Photocatalysis has gained interest in last few decades due to their application in H 2 production, [11] environmental applications, [12] nitrate reduction and so on. Photochemical induced nitrate reduction is another emerging technique due to zero pollution, safe and lower energy cost involving photolysis of nitrate (primary chromophore) into nitrogen and subsequent products.…”

Section: Introductionmentioning

confidence: 99%

“…Among these, electrochemical nitrate reduction (ENR) offers a sustainable, cost‐effective, and environmentally friendly solution, but has drawbacks like sludge formation and high overpotential. [ 10 ]…”

Section: Introductionmentioning

confidence: 99%

Bimetallic Pd‐Sn Catalytic Electrodes from Deep Eutectic Solvents for Selective Nitrate Reduction Toward Nitrogen

Kuan,

Chen,

Ahmad

et al. 2023

Advanced Sustainable Systems

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Nitrate is one of the most widespread water contaminants globally. Nitrate levels in groundwater and surface water can rise to unhealthy levels as a result of nitrogen fertilizer runoff from lawns and farms. This research aims to selectively convert nitrate to gaseous nitrogen using Palladium‐Tin (Pd‐Sn) bimetallic electrodes electrodeposited on stainless‐steel (SS). Inductively coupled plasma optical emission spectrometry, scanning electron microscope, and X‐ray diffraction are used to analyze the composition, surface morphology, and crystal structure of the electrodes. The XRD analysis reveals that the Pd‐Sn/SS electrode has a crystalline nature when a Pd molar ratio >0.5 while an amorphous phase is detected over a Pd molar ratio (≤0.5). The electrochemical nitrate reduction is carried out in a 0.1 M HClO4 / 8 mM NaNO3 solution for 5 h using electrodes prepared in deep eutectic solvent (DES) system. The Pd0.93Sn0.07/SS electrode shows the best catalytic performance in terms of high nitrate conversion of 97%, N2 selectivity of 88%, and N2 yield of 86% compared to counter electrodes. These findings demonstrate a considerable impact of the electrode preparation process on nitrogen conversion, selectivity, and yield.

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Rational Design of Amorphous Nanomaterials for Enhanced Electrochemical CO₂ and Nitrate Reduction

Wang,

Cheng,

et al. 2024

ChemCatChem

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Amorphous materials are distinguished by their exceptional attributes, notably their expansive surface area and the profusion of active sites they present. Consequently, the amorphization process stands as an efficacious strategy to augment the catalytic efficacy of electrocatalysts. This is achieved through the meticulous construction of the surface architecture and the precise modulation of the electronic configuration of these materials. Therefore, this review aims to offer a thorough examination of the latest progress in the application of amorphous materials for the enhancement of electrocatalytic processes, with a particular emphasis on the nitrate (NO3‐) reduction reaction (NITRR) and the carbon dioxide reduction reaction (CO2RR). Initially, we delve into the structural benefits inherent to amorphous materials, outlining the diverse synthesis techniques and characterization methodologies utilized in their development. Following this, we illustrate the utilization of various amorphous materials in NITRR and CO2RR, accentuating how the amorphous framework influences electrocatalytic activities. Concludingly, we encapsulate the merits and the obstacles encountered in the application of amorphous electrocatalysts for NITRR and CO2RR, whilst also forecasting the future direction for the creation of innovative amorphous electrocatalysts.

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Nitrate pollution and its solutions with special emphasis on electrochemical reduction removal

Cited by 6 publications

References 108 publications

Advancements in Catalysts for Electrochemical Nitrate Reduction: A Sustainable Approach for Mitigating Nitrate Pollution: A Review

Advancements in Catalysts for Electrochemical Nitrate Reduction: A Sustainable Approach for Mitigating Nitrate Pollution: A Review

Bimetallic Pd‐Sn Catalytic Electrodes from Deep Eutectic Solvents for Selective Nitrate Reduction Toward Nitrogen

Rational Design of Amorphous Nanomaterials for Enhanced Electrochemical CO₂ and Nitrate Reduction

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Nitrate pollution and its solutions with special emphasis on electrochemical reduction removal

Cited by 6 publications

References 108 publications

Advancements in Catalysts for Electrochemical Nitrate Reduction: A Sustainable Approach for Mitigating Nitrate Pollution: A Review

Advancements in Catalysts for Electrochemical Nitrate Reduction: A Sustainable Approach for Mitigating Nitrate Pollution: A Review

Bimetallic Pd‐Sn Catalytic Electrodes from Deep Eutectic Solvents for Selective Nitrate Reduction Toward Nitrogen

Rational Design of Amorphous Nanomaterials for Enhanced Electrochemical CO2 and Nitrate Reduction

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Rational Design of Amorphous Nanomaterials for Enhanced Electrochemical CO₂ and Nitrate Reduction