将红贝废弃物的价值化转化为酸盐薄膜,用于增强反应黑5吸附
Calebe Hebrom Livistom Silva1, Marcelo Godoi1, Meritaine da Rocha2
1School of Chemistry and Food, Universidade Federal do Rio Grande, Santo Antônio da Parulha, 125 Barão do Cahy, 95500-000, Rio Grande do Sul, Brazil.
Environmental science and pollution research international
|September 22, 2025
概括
素/甘油薄膜有效地从水中去除反应性黑色5 (RB5) 织染料. 这些可持续的薄膜具有很高的吸附能力和快速的动力学,这使得它们对废水处理具有前景.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 像Reactive Black 5 (RB5) 这样的织染料在废水中带来了环境挑战.
- 甲甲的生物聚合物奇托 (chitosan) 是一种生物聚合物,它有可能用于去除染料的应用.
- 开发高效和可持续的吸附剂对于净水至关重要.
研究的目的:
- 为了准备和描述用于RB5染料去除的奇托桑/甘油薄膜.
- 研究RB5对膜的吸附机制,动力学和热力学.
- 评估薄膜作为织染料废水处理的可持续解决方案的潜力.
主要方法:
- 使用造方法,用甘油作为塑化剂,制备了基托桑薄膜.
- 进行了吸附实验,以确定最大的吸附能力.
- 应用了兰木尔等温和和伪第一阶动力学模型来分析平衡和动力学数据.
- 计算了热力学参数 (吉布斯自由能量) 来评估自发性.
主要成果:
- 素薄膜表现出可调节的机械性能和较低的水溶性.
- RB5染料的最大吸附能力达到了389.47 mg/g.
- 吸附平衡最好用兰格穆尔异热模型来描述.
- 伪第一阶动力学表明染料吸收速度快,在2小时内达到74.8%的和度.
- 发现吸附过程是自发的和有利的.
结论:
- 素/甘油薄膜是反应性黑5织染料的有效吸附剂.
- 这些膜显示出高吸附能力和高效的染料去除动力学.
- 该研究强调了这些生物聚合物薄膜在可持续废水处理方面的潜力.
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