p-Nitroaniline (PNAN) and nitrobenzene (NB) being important raw materials and intermediates for the production of a wide range of chemical products have the potential of constituting water pollutants. Hence, the development of the means of removing these chemicals from water would go a long way to safeguard the health of the environment. The goal of this research was to transform bagasse fly ash (BFA), solid waste from the sugar industry into porous zeolitic adsorbents MgFZBFA and MgMZBFA and examine them for their adsorptive removal of PNAN and NB from aqueous solutions. The syntheses of the sorbents involve alkali fusion technique and microwave hydrothermal treatment for the desired properties. Advanced characterization techniques such as FTIR (Fourier transform infrared spectroscopy), XRF (X-ray fluorescence spectroscopy), XRD (X-ray diffraction spectroscopy), SEM (scanning electron microscopy), Brunauer–Emmett–Teller (BET)/Barrett–Joyner–Halenda (BJH) Method, and TGA (thermogravimetric analysis) were used for the characterization and evaluation of the sorbents’ properties. The adsorptive removal of PNAN and NB from aqueous solutions by MgFZBFA and MgMZBFA were investigated. Various parameters such as pH, adsorbent dosage, initial sorbate concentration were optimized during the adsorption experiment to achieve best performance. Adsorption isotherm, kinetics and dynamics were studied. It was found that Langmuir adsorption isotherm model better represents the adsorption processes and that the processes follow pseudo-second-order kinetics. More so, the sorption processes were most possibly completed by both surface sorption (liquid-film diffusion) and intra-particle diffusion. The maximum sorption capacities observed with MgFZBFA for PNAN and NB are 30.86 mg g⁻¹ and 19.92 mg g⁻¹, while with MgMZBFA the values are 12.72 mg g⁻¹ and 10.20 mg g⁻¹, respectively. The performances of MgFZBFA and MgMZBFA for the sorption of PNAN and NB were compared with some adsorbents previously studied for the same purpose, and results show that the adsorbents in the present study exhibit better performances. The application as materials of cheap source for the removal of PNAN and NB from contaminated water could be considered.

p-硝基苯胺（PNAN）和硝基苯（NB）是重要的原材料，是生产多种化学产品的中间体，可能会构成水污染物。因此，开发从水中去除这些化学物质的手段将对保护环境健康大有帮助。这项研究的目的是将蔗糖工业中的蔗渣粉煤灰（BFA），固体废物转化为多孔沸石吸附剂MgFZBFA和MgMZBFA，并对其在水溶液中对PNAN和NB的吸附去除进行研究。吸附剂的合成涉及碱熔融技术和微波水热处理，以实现所需的性能。先进的表征技术，例如FTIR（傅里叶变换红外光谱），XRF（X射线荧光光谱），XRD（X射线衍射光谱法），SEM（扫描电子显微镜），Brunauer-Emmett-Teller（BET）/ Barrett-Joyner-Halenda（BJH）方法和TGA（热重分析）用于表征和评估。吸附剂的特性。研究了MgFZBFA和MgMZBFA对水溶液中PNAN和NB的吸附吸附作用。在吸附实验过程中，对各种参数（例如pH值，吸附剂剂量，初始山梨酸盐浓度）进行了优化，以实现最佳性能。研究了吸附等温线，动力学和动力学。发现Langmuir吸附等温线模型较好地表示了吸附过程，并且该过程遵循伪二级动力学。更是如此 吸附过程最有可能通过表面吸附（液膜扩散）和颗粒内扩散来完成。MgFZBFA对PNAN和NB的最大吸附容量为30.86 mg g^-1和19.92 mg g ^-1，而MgMZBFA的值分别为12.72 mg g ^-1和10.20 mg g ^-1。将MgFZBFA和MgMZBFA吸附PNAN和NB的性能与以前为相同目的而研究的一些吸附剂进行了比较，结果表明本研究中的吸附剂表现出更好的性能。可以考虑将其作为廉价来源的材料从污染水中去除PNAN和NB的应用。