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Updated: Feb 6, 2026

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DNA Methylation: Bisulphite Modification and Analysis
Published on: October 21, 2011
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煤气化精细渣的甲基化修改,以提高废水中的有机染料吸附率
1School of Urban Planning and Municipal Engineering, Xi'an Polytechnic University Xi'an 710048 China jingy76@163.com +86 29 81369680.
RSC advances
|February 5, 2026
概括
煤气化细渣 (CGFS) 被修改为用于染料废水处理的成本效益高的吸附剂. DDS-CGFS显示了罗达B的高吸附能力,表明其对环境修复的潜力.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 煤气化细渣 (CGFS) 提出了处置挑战,而染料废水需要有效处理.
- 开发经济高效的吸附剂对于应对这些环境压力至关重要.
研究的目的:
- 合成和评估基于CGFS的吸附剂 (DDS-CGFS和DTAC-CGFS) 用于罗达胺B (RhB) 染料去除.
- 为了研究不同条件下的吸附性能,并阐明吸附机制.
主要方法:
- 用二甲基二氧化硫 (DDS-CGFS) 和二甲基三甲基氨基化物 (DTAC-CGFS) 修改CGFS.
- 吸附实验改变pH值,温度和接触时间.
- 动力学,同热学和热力学分析以了解吸附行为.
- 材料的特性,以探索吸附机制.
主要成果:
- 在最佳条件下 (pH 7,328.15 K,24小时) DDS-CGFS实现了 RhB 的最大吸附能力为 92.82 mg g-1.
- 吸附遵循伪二阶动力学和兰木尔异热模型,表明化学吸附和物理吸附过程.
- 热力学分析显示了自发的,内热吸附过程与增加的.
结论:
- 改性CGFS (DDS-CGFS和DTAC-CGFS) 是用于染料废水整治的低成本吸附剂.
- 协同吸附机制包括结和π-π堆叠.
- 这些吸附剂在处理染料污染的水中具有重要的工业应用潜力.
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