Zirconium(IV)-loaded chitosan/Fe₃O₄/graphene oxide (Zr-CMGO) was fabricated and applied to remove alizarin red (AR) from aqueous solution. Characterizations of Zr-CMGO were performed using several techniques. The effects of initial AR pH, coexisted NaCl, contact time and AR concentration were systematically investigated in batch mode. The increased pH had a negative effect on AR adsorption while there was little impact with salinity. Adsorption capacity toward AR reached up to 231 mg/g at 313 K. The kinetic and isotherm analyses indicated that pseudo-second-order kinetic model and Freundlich model could predicted the uptake of AR. In addition, the mechanism of AR adsorption could be mainly complexation, electrostatic force, etc. There is antibacterial activity from test about Zr-CMGO. Furthermore, the two-stage design could be applied for the theoretical support. Based on all results, Zr-CMGO is a novel and selective adsorbent for practical applications.

负载锆（IV）的壳聚糖/ Fe ₃ O ₄制备了氧化石墨烯（Zr-CMGO）并用于去除水溶液中的茜素红（AR）。Zr-CMGO的表征使用多种技术进行。以分批方式系统研究了初始AR pH，NaCl共存，接触时间和AR浓度的影响。pH升高对AR吸附有负面影响，而盐度影响很小。在313 K下，对AR的吸附能力达到231 mg / g。动力学和等温线分析表明，伪二级动力学模型和Freundlich模型可以预测AR的吸收。另外，AR吸附的机理可能主要是络合，静电力等。Zr-CMGO的试验表明具有抗菌活性。此外，两阶段设计可用于理论支持。