丝绸2025，Vol.62Issue(7)：45-51,7.DOI:10.3969/j.issn.1001-7003.2025.07.005
铁氧化合物基磁性复合颗粒制备及其染料吸附性能研究
A study on the preparation of iron oxide-based magnetic composite particles and their dye adsorption performance
摘要
Abstract
The worldwide expansion of the textile industry and the accelerated consumption of textile products have intensified the wastewater dilemma from dyeing and printing processes,gravely jeopardizing environmental and ecological security.The dyeing effluent bears a substantial quantity of recalcitrant dyes and low-molecular-weight organics,which can bioaccumulate and progressively undermine ecosystems.Despite the emergence of diverse dyeing wastewater treatment technologies-such as adsorption,flocculation,membrane separation,and advanced oxidation,these methods still encounter hurdles in cost containment,reducing reliance on specialized equipment,preventing secondary pollution,and ensuring long-term recyclability.Consequently,the research community is actively pursuing low-cost,high-efficiency,easily recoverable,and recyclable treatment strategies aligned with green sustainability principles. Adsorbent materials have demonstrated significant potential in dyeing wastewater treatment,effectively decolorizing via physical or chemical interactions.Nevertheless,conventional adsorbents often face recovery difficulties and limited durability.To address these issues,magnetic adsorbents,which enable facile recovery through magnetic fields,have garnered substantial attention.Yet,single magnetic adsorbents may exhibit insufficient adsorption efficiency and selectivity,especially in complex wastewater matrices.Therefore,many researchers have focused on hybridizing magnetic materials with functional components to create magnetic composite adsorbents with superior performance.However,some existing magnetic composite materials involve biotoxic compounds,posing a risk of secondary pollution.This has motivated the development of eco-friendly magnetic composites to advance green chemistry and engineering. This paper,following a low-cost,straightforward,and eco-friendly approach,employs synthesized oxidized sodium alginate(OSA)as a crosslinking agent to construct Fe3O4@NH2-BPEI magnetic composite particles at room temperature.By meticulously optimizing reactant ratios and reaction conditions,the adsorption capacity and chemical stability of Fe3O4@NH2-BPEI are enhanced.X-ray diffraction(XRD)and Fourier-transform infrared spectroscopy(FT-IR)are utilized to characterize its crystal structure and chemical composition.Batch equilibrium experiments are conducted to assess adsorption performance by varying pH and contact time,further elucidating the synergy between chemical and physical adsorption mechanisms.The magnetic responsiveness of Fe3O4@NH2-BPEI is evaluated under an external magnetic field,and adsorption-desorption cycling tests demonstrate its recyclability and stability.Moreover,the study investigates Fe3O4@NH2-BPEI's efficacy in treating two types of simulated textile dyeing wastewater,highlighting its application potential in complex water systems.关键词
磁性复合颗粒/染料吸附/染色废液/磁响应/分离回收/循环使用Key words
magnetic composite particles/dye adsorption/dyeing waste liquid/magnetic response/separation and recovery/recycling use分类
轻工纺织引用本文复制引用
龙委世,张志伟,郭振彩,王增坤,陈诚,姜黎..铁氧化合物基磁性复合颗粒制备及其染料吸附性能研究[J].丝绸,2025,62(7):45-51,7.基金项目
新疆维吾尔自治区重点研发任务专项项目(2022B01045-4) （2022B01045-4）
新疆维吾尔自治区自然科学基金青年科学基金项目(2022D01C68) （2022D01C68）
新疆维吾尔自治区重点研发项目(2023B02045) （2023B02045）
新疆大学专业学位研究生教学案例库建设项目(XJDX2023YALK20) （XJDX2023YALK20）
新疆维吾尔自治区天池博士计划科研启动项目(TCBS202011) （TCBS202011）
新疆大学博士启动基金项目(BS210215) （BS210215）
