In this research, we stated the fabrication of an innovative sulfamic acid functionalized magnetic nanoparticles (Fe₃O₄@PAMAM-SO₃H) with denderimeric linkers. FT-IR, TEM, XRD, FE-SEM, and TGA methods were carried out to characterize the catalyst. Eventually, The catalytic prowess of the Fe₃O₄@PAMAM-SO₃H was tested to synthesize highly substituted pyrans. The obtained magnetic sorbent was also used to remove malachite green (MG) and magnetic solid phase extraction of bisphenol A (BPA) as an organic pollutant from aquoues media in the form of magnetic solid-phase extraction (MSPE) method. The maximum adsorption capacity (q_m) of the prepared sorbent for MG found by the Langmuir isotherm was 1250 mg g⁻¹ at 333.15 K. In addition, the MSPE of BPA was carried out and high performance liquid chromatography (HPLC) was employed to quantify the extracted analyte. The method presented a linearity range of 0.2–200 µg L⁻¹. The obtained relative standard deviations (RSDs) were lower than 7.1%. The limit of quantification (LOQ) and limit of detection (LOD) were also calculated to be 0.18 and 0.05 µg L⁻¹, respectively_. Relative recoveries higher than 97.5% were attained for analysis of various selected real samples.

在这项研究中，我们陈述了具有二聚体连接基的创新型氨基磺酸官能化磁性纳米粒子（Fe ₃ O ₄ @ PAMAM-SO ₃ H）的制备。进行了FT-IR，TEM，XRD，FE-SEM和TGA方法表征催化剂。最终，测试了Fe ₃ O ₄ @ PAMAM-SO ₃ H的催化能力，以合成高度取代的吡喃。所获得的磁性吸附剂还以磁性固相萃取（MSPE）的形式用于从水介质中去除孔雀石绿（MG）和磁性固相萃取双酚A（BPA）作为有机污染物。最大吸附容量（Q_米由朗缪尔等温线发现的制得的MG吸附剂在333.15 K下为1250 mg g ^-1。此外，对BPA进行了MSPE，并采用了高效液相色谱（HPLC）定量分析了提取的分析物。该方法的线性范围为0.2–200 µg L ^-1。获得的相对标准偏差（RSD）低于7.1％。定量限（LOQ）和检测（LOD）的极限的极限也被计算为0.18和0.05微克大号^-1分别_。对各种选定的真实样品进行分析时，相对回收率均高于97.5％。