In this study, the immobilization of palladium nanoparticles (NPs) on amine modified zeolite (Zeo) particles bearing a heterocyclic ligand has been developed through immobilizing structurally defined furfural with long tail of 3-aminopropyltriethoxysilane. NH₂ modified Zeo/Pd has been synthesized via facile multi-step organic amine functionalization as a sustainable, recoverable and highly active nanocatalyst in the reduction of hexavalent chromium [Cr(VI)], potassium hexacyanoferrate(III) (K₃[Fe(CN)₆]), 2,4-dinitrophenylhydrazine (2,4-DNPH), 4-nitrophenol (4-NP), Rhodamine B (RhB), Methylene Blue (MB) and Nigrosin (NS) at ambient temperature in aqueous media. The surface nature of zeolite was changed after NH₂ modification, leading to a remarkable increase in the catalytic and antimicrobial performances. TEM and HRTEM (high resolution transmission electron microscopy), FESEM (field emission scanning electron microscopy), STEM (scanning transmission electron microscopy), TG-DTG (thermogravimetry/derivative thermogravimetry), FT-IR (Fourier transform infrared), XRD (X-ray diffraction), EDS (energy dispersive X-ray spectroscopy), XPS (elemental mapping, X-ray photoelectron spectroscopy) and Raman analyses have been used to characterize the as-prepared nanocatalyst. The high removal rates of these environmental pollutants with NH₂ modified Zeo/Pd nanocatalyst (Pd [email protected]) using sodium borohydride (NaBH₄) and formic acid (HCOOH) at ambient temperature were measured via UV-Vis spectroscopy and the nanocatalyst could be reused at least eight times without any significant loss of catalytic activity.

在这项研究中，已经开发了钯纳米颗粒（NPs）固定在带有杂环配体的胺改性沸石（Zeo）颗粒上的方法，方法是将结构明确的糠醛固定在3-氨基丙基三乙氧基硅烷的长尾巴上。NH ₂改性的Zeo / Pd已通过简便的多步有机胺官能团合成，作为一种可持续，可回收和高活性的纳米催化剂，可还原六价铬[Cr（VI）]，六氰合铁酸钾（III）（K ₃ [Fe（ CN）₆ ]），2,4-二硝基苯肼（2,4-DNPH），4-硝基苯酚（4-NP），若丹明B（RhB），亚甲基蓝（MB）和尼古丁（NS）在水性介质中于室温。NH ₂后改变了沸石的表面性质改性，导致催化和抗菌性能显着提高。TEM和HRTEM（高分辨率透射电子显微镜），FESEM（场发射扫描电子显微镜），STEM（扫描透射电子显微镜），TG-DTG（热重/导数热重），FT-IR（傅立叶变换红外），XRD（X）射线衍射），EDS（能量色散X射线能谱），XPS（元素映射，X射线光电子能谱）和拉曼分析已用于表征制备的纳米催化剂。使用硼氢化钠（NaBH ₄）的NH ₂改性的Zeo / Pd纳米催化剂（Pd [受电子邮件保护]）对这些环境污染物的高去除率）和环境温度下的甲酸（HCOOH）通过UV-Vis光谱仪进行了测量，该纳米催化剂可以重复使用至少八次，而催化活性没有任何重大损失。