Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology for Science and Education Combined with Science and Technology Innovation Base, Guilin University of Technology, Guilin, People's Republic of China.
College of Materials Science and Engineering, Guilin University of Technology, Guilin, People's Republic of China.
Environ Technol. 2022 Sep;43(23):3519-3530. doi: 10.1080/09593330.2021.1924288. Epub 2021 Jun 2.
As an important biomass resource, agricultural waste is of great significance to improve the application value. In this study, the yellow passion fruit peel (Y-PFP) was used as a biosorbent to remove cationic dyes (methylene blue (MB) and methyl violet (MV)) by the simple treatment process. And the effects of pH, contact time, initial dye concentration, ionic strength, and temperature on the adsorption performance of Y-PFP were studied. The adsorption process was consistent with the pseudo-second-order kinetic model and Langmuir isotherm. What's more, the maximum adsorption capacity for MB and MV was 324.7 and 485.4 mg·g, respectively. And Y-PFP still exhibited high removal efficiency after five desorption-adsorption cycles. Thus, Y-PFP had highly valuable for the removal of cationic dyes from wastewater with a simple preparation process, low cost, excellent adsorption capacity and selectivity.
作为一种重要的生物质资源，农业废弃物对于提高应用价值具有重要意义。在本研究中，我们使用黄百香果果皮（Y-PFP）作为生物吸附剂，通过简单的处理过程去除阳离子染料（亚甲蓝（MB）和甲基紫（MV））。研究了 pH 值、接触时间、初始染料浓度、离子强度和温度对 Y-PFP 吸附性能的影响。吸附过程符合准二级动力学模型和朗缪尔等温线。此外，Y-PFP 对 MB 和 MV 的最大吸附容量分别为 324.7 和 485.4 mg·g-1。并且 Y-PFP 在经过五次解吸-吸附循环后仍表现出很高的去除效率。因此，Y-PFP 具有简单的制备工艺、低成本、优异的吸附容量和选择性，对于从废水中去除阳离子染料具有很高的应用价值。
