Comparative analysis of nano-additives for enhanced photocatalytic hydrogen production: A hybrid approach using MEREC and sensitivity methods

IF 5.45 Q1 Physics and Astronomy

Nano-Structures & Nano-Objects Pub Date : 2024-09-26 DOI:10.1016/j.nanoso.2024.101353

Tauseef Hassan , Osama Khan , Mohd Zaheen Khan , Pratibha Kumari , Mohd Parvez , Azhar Equbal , Taufique Ahamad

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引用次数: 0

Abstract

Photocatalytic hydrogen production is a cutting-edge technology that offers a sustainable and efficient pathway for clean energy generation, crucial for mitigating the global energy crisis. This study specifically identified the most effective nano-additives for photocatalytic water splitting into hydrogen fuel, with a detailed evaluation of various nanocomposites. The analysis utilized the method based on the removal effects of criteria method to determine the importance of different performance parameters, prioritizing stability (27 %) and hydrogen production (26 %) as the most critical factors. Based on these weighted criteria, Graphene/TiO₂ was identified as the top-performing nano-additive, followed closely by g-C₃N₄/TiO₂ and Pt-TiO₂. The findings highlight that the superior charge separation, enhanced bandgap, and extensive surface area of Graphene/TiO₂ contribute significantly to its outstanding performance. Graphene/TiO₂ achieved the optimal outcomes with hydrogen production of 2100 μmol/g·h, a photocatalytic efficiency of 95 %, stability of 50 hours, and a cost-effectiveness of $15/g. Sensitivity analysis confirmed these results, emphasizing the robustness of these nanocomposites under varied conditions. The study's implications suggest that these advanced photocatalytic materials, can drive efficient hydrogen evolution, offering a scalable and environmentally friendly alternative to conventional fossil fuels.

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用于增强光催化制氢的纳米添加剂的比较分析：使用 MEREC 和灵敏度方法的混合方法

光催化制氢是一项尖端技术，为清洁能源的生产提供了一条可持续的高效途径，对缓解全球能源危机至关重要。本研究通过对各种纳米复合材料的详细评估，特别确定了光催化水分裂成氢燃料的最有效纳米添加剂。分析采用了基于标准去除效果的方法来确定不同性能参数的重要性，并将稳定性（27%）和氢气产量（26%）列为最关键的因素。根据这些加权标准，石墨烯/二氧化钛被确定为性能最好的纳米添加剂，紧随其后的是 g-C3N4/TiO2 和 Pt-TiO2。研究结果表明，石墨烯/二氧化钛卓越的电荷分离能力、增强的带隙和广泛的比表面积是其优异性能的重要原因。石墨烯/二氧化钛取得了最佳结果，制氢量达到 2100 μmol/g-h，光催化效率达到 95%，稳定性达到 50 小时，成本效益为 15 美元/克。敏感性分析证实了这些结果，强调了这些纳米复合材料在不同条件下的稳定性。研究结果表明，这些先进的光催化材料可以推动高效的氢气进化，为传统化石燃料提供一种可扩展的环保型替代品。

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来源期刊

Nano-Structures & Nano-Objects Physics and Astronomy-Condensed Matter Physics

CiteScore

9.20

自引率

0.00%

发文量

审稿时长

22 days

期刊介绍： Nano-Structures & Nano-Objects is a new journal devoted to all aspects of the synthesis and the properties of this new flourishing domain. The journal is devoted to novel architectures at the nano-level with an emphasis on new synthesis and characterization methods. The journal is focused on the objects rather than on their applications. However, the research for new applications of original nano-structures & nano-objects in various fields such as nano-electronics, energy conversion, catalysis, drug delivery and nano-medicine is also welcome. The scope of Nano-Structures & Nano-Objects involves: -Metal and alloy nanoparticles with complex nanostructures such as shape control, core-shell and dumbells -Oxide nanoparticles and nanostructures, with complex oxide/metal, oxide/surface and oxide /organic interfaces -Inorganic semi-conducting nanoparticles (quantum dots) with an emphasis on new phases, structures, shapes and complexity -Nanostructures involving molecular inorganic species such as nanoparticles of coordination compounds, molecular magnets, spin transition nanoparticles etc. or organic nano-objects, in particular for molecular electronics -Nanostructured materials such as nano-MOFs and nano-zeolites -Hetero-junctions between molecules and nano-objects, between different nano-objects & nanostructures or between nano-objects & nanostructures and surfaces -Methods of characterization specific of the nano size or adapted for the nano size such as X-ray and neutron scattering, light scattering, NMR, Raman, Plasmonics, near field microscopies, various TEM and SEM techniques, magnetic studies, etc .