利用高光催化纳米复合膜As2O3/聚3-甲基苯胺从环保、高性价比的红海水中生成绿色氢

IF 3 Q2 MATERIALS SCIENCE, COMPOSITES Journal of Composites Science Pub Date : 2023-11-05 DOI:10.3390/jcs7110463
Mohamed Rabia, Asmaa M. Elsayed, Maha Abdallah Alnuwaiser, Madeha A. Awad
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引用次数: 0

摘要

本研究的主要目的是通过引入一种创新的纳米复合材料来解决能源挑战。这种材料旨在促进将环境友好且经济可行的红海水转化为氢气。这项工作的最终目标是为开发一种实用的设备铺平道路,这种设备可以在家庭和工业环境中使用,直接将水转化为氢气。这种新型的纳米复合材料是由As2O3和聚3-甲基苯胺(P3MA)通过氧化聚合合成的。该材料具有广泛的吸收范围,可达700 nm,并具有1.75 eV的带隙,使其成为绿色制氢中有希望用作光电极的候选者。该装置的独特之处在于利用红海水作为电解质,这是一种天然的牺牲剂,使该过程环保且具有成本效益。当用作光电极时,该材料表现出对绿色产氢的高灵敏度,产生6摩尔/10 cm2·h的氢。在−0.83 V电压下,在光照下测得的电流密度值为−0.08 mA·cm−2 (Jph),在黑暗下测得的电流密度值为−0.02 mA·cm−2 (Jo)。此外,使用不同的滤光片评估了光电极对光的响应性,揭示了在340 nm时的最佳性能,其中Jph达到- 0.052 mA·cm−2。这些结果有力地证明了As2O3/ p3map光电极用于红海绿色制氢的光活性。这强调了开发电化学电池将海水直接转化为氢气的潜力。
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Green Hydrogen Generation from Eco-Friendly and Cost-Effective Red Sea Water Using a Highly Photocatalytic Nanocomposite Film, As2O3/Poly-3-methylaniline
The primary objective of this research is to address the energy challenges by introducing an innovative nanocomposite material. This material is designed to facilitate the conversion of environmentally friendly and economically viable Red Sea water into hydrogen gas. The ultimate goal of this work is to pave the way for the development of a practical device that can be employed within households and industrial settings to directly convert water into hydrogen gas. This novel nanocomposite material synthesized through oxidative polymerization comprises As2O3 and Poly-3-methylaniline (P3MA). This material possesses an extensive absorption range, spanning up to 700 nm, and features a bandgap of 1.75 eV, making it a promising candidate for use as a photoelectrode in green hydrogen production. The unique aspect of this setup lies in the utilization of Red Sea water, a natural sacrificing agent, as the electrolyte, rendering the process eco-friendly and cost-effective. When it is employed as a photoelectrode, this material exhibits high sensitivity to green hydrogen production, generating 6 moles/10 cm2·h of hydrogen. At a voltage of −0.83 V, the current density values are measured as −0.08 mA·cm−2 (Jph) in light and −0.02 mA·cm−2 (Jo) in darkness. Furthermore, the photoelectrode’s responsiveness to light is assessed with different optical filters, revealing the optimal performance at 340 nm, where Jph reaches −0.052 mA·cm−2. These outcomes provide strong evidence of the photoactivity of the As2O3/P3MAphotoelectrode for green hydrogen production using Red Sea water. This underscores its potential for the development of an electrochemical cell for the direct conversion of sea water into H2 gas.
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来源期刊
Journal of Composites Science
Journal of Composites Science MATERIALS SCIENCE, COMPOSITES-
CiteScore
5.00
自引率
9.10%
发文量
328
审稿时长
11 weeks
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