The loading of nano-bimetallic catalysts onto coal tar pitch-based activated carbon fibers for the efficient reduction of p-nitrophenol

IF 7.2 3区材料科学 Q2 Materials Science

New Carbon Materials Pub Date : 2026-04-01 Epub Date: 2026-04-27 DOI:10.1016/S1872-5805(26)61067-0

Fuhu Li , Jing You , Qianyu Zhang , Ye Zhang , Junfeng Rong

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Abstract

The reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) in wastewater faces challenges in terms of conversion rate and stability. We used coal tar pitch-based activated carbon fibers (ACFs) as an support material for loading transition metal catalysts to catalyze the reaction. Fe–Ni nanoparticles were loaded onto the coal tar pitch-based ACF through a simple hydrothermal–calcination method. The results showed that the coal tar pitch-based ACFs had a high specific surface area (1847 m2/g) and a unique microporous structure, and the metals were loaded onto them. The average diameter of the nanoparticles formed was approximately 100 nm. By changing the metal loading it was shown that the performance was best when the reaction temperature was 45 °C, the 4-NP concentration was 2.5 mmol L−1, and the molar concentration ratio of Fe3+ to Ni2+ was 1∶2 (total 7.5 mmol L−1). Under these conditions the conversion efficiency reached 99.88%. Fe2.5/Ni5–ACF exhibited excellent catalytic activity and recyclability for 4-NP after five cycles. The inherent advantages of nanomaterials increase the catalytic efficiency of 4-NP, which expands the use of coal tar pitch-based ACFs as supporting materials in the field of catalysis.

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煤沥青基活性炭纤维负载纳米双金属催化剂对硝基苯酚的高效还原

废水中4-硝基苯酚（4-NP）还原为4-氨基苯酚（4-AP）面临着转化率和稳定性方面的挑战。我们使用煤焦油沥青基活性炭纤维作为负载过渡金属催化剂的载体来催化反应。采用简单的水热煅烧方法将Fe-Ni纳米颗粒加载到煤焦油沥青基ACF上。结果表明，煤焦油沥青基ACFs具有较高的比表面积（1847 m2/g）和独特的微孔结构，并能负载金属。形成的纳米颗粒的平均直径约为100纳米。结果表明，当反应温度为45℃，4-NP浓度为2.5 mmol L−1，Fe3+与Ni2+的摩尔浓度比为1∶2（共7.5 mmol L−1）时，反应性能最佳。在此条件下，转化效率达到99.88%。经过5次循环，Fe2.5/ Ni5-ACF对4-NP具有良好的催化活性和可回收性。纳米材料的固有优势提高了4-NP的催化效率，从而扩大了煤焦油沥青基ACFs作为催化领域支撑材料的应用范围。下载：下载高清图片（164KB）下载：下载全尺寸图片

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来源期刊

New Carbon Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

6.10

自引率

8.80%

发文量

3245

审稿时长

5.5 months

期刊介绍： New Carbon Materials is a scholarly journal that publishes original research papers focusing on the physics, chemistry, and technology of organic substances that serve as precursors for creating carbonaceous solids with aromatic or tetrahedral bonding. The scope of materials covered by the journal extends from diamond and graphite to a variety of forms including chars, semicokes, mesophase substances, carbons, carbon fibers, carbynes, fullerenes, and carbon nanotubes. The journal's objective is to showcase the latest research findings and advancements in the areas of formation, structure, properties, behaviors, and technological applications of carbon materials. Additionally, the journal includes papers on the secondary production of new carbon and composite materials, such as carbon-carbon composites, derived from the aforementioned carbons. Research papers on organic substances will be considered for publication only if they have a direct relevance to the resulting carbon materials.