摘要
开发低廉高效的吸附剂处理染料废水引起人们的广泛关注,本实验以壳聚糖与天然易得钒钛磁铁矿为原料,采用溶胶-凝胶法制备壳聚糖-钒钛磁铁矿复合材料(CS-VTM),研究了其对酸性橙废水的吸附行为,同时使用X射线衍射(XRD)对制备的CS-VTM进行表征分析。系统研究了CS-VTM投加量、温度及pH等对酸性橙染料吸附性能的影响。在酸性橙浓度为100 mg/L时,CS-VTM对酸性橙的吸附容量达到246.8 mg/g。吸附动力学更加符合拟二阶动力学模型,Langmuir等温线更好拟合实验数据。该复合材料在处理酸性橙染料时具备较好的吸附性能,为染料废水的处理提供新思路。
The development of low cost and high efficiency adsorbents applied in treatment of dye wastewater has attracted more attention. The chitosan and natural Vanadium-titanium magnetite were used as raw materials to prepare the complex material of Chitosan - Vanadium-titanium magnetite composite (abbreviated as, CS-VTM) by a sol-gel method. The adsorption performance of acid orange by the synthesized CS-VTM from wastewater was studied. The X-ray diffraction analysis (XRD) method was used to characterize the prepared CS-VTM. The effects of CS-VTM dosage, temperature and pH value on adsorption performance of the acid orange were systematically studied. When the acid orange concentration was100 mg/L, the adsorption capacity of CS-VTM for acid orange reached 246.8 mg/g. The pseudo-second-order kinetic model and Langmuir isotherm could better fit the adsorption kinetics and experimental data. The composite material has good adsorption performance in the treatment of acid orange dye, which could provide a new choice for treatment of dye wastewater.
作者
张伟
盛晓宇
陈泉林
左其亭
ZHANG Wei;SHENG Xiaoyu;CHEN Quanlin;ZUO Qiting(College of Ecology and Environment,Zhengzhou University;Zhengzhou Key Laboratory of Water Resource and Environment;Yellow River Institute for Ecological Protection&Regional Coordinated Development,Zhengzhou University;Henan International Joint Laboratory of Water Cycle Simulation and Environmental Protection;School of Water Conservancy Engineering,Zhengzhou University,Zhengzhou 450001,China)
出处
《水处理技术》
CAS
CSCD
北大核心
2022年第4期76-79,共4页
Technology of Water Treatment
基金
国家自然科学基金项目(52000163)
河南省自然科学基金(202300410423)。
