摘要：Fine particles ( d p ≤ 2.5 μm) from coal combustion tend to form stable floating layers due to spreading during wet scrubbing processes, resulting in low removal efficiencies (30–50%). This study systematically investigates the anti-wetting mechanism of these particles, induced by the coupling of surface chemical modification and micro-morphology, using surface analysis (XPS, SEM, etc.) and wetting dynamics experiments. The results indicate that although the bulk phase of fly ash primarily consists of hydrophilic aluminosilicates, a certain amount of organic matter (atomic concentration: 7.14–10.46%) covers the high-energy surfaces of the fine particles during flue gas cooling, significantly reducing their intrinsic wettability. At the microscale, the micro-nano topology constructed by the floating layer encapsulates and traps air within cavities via a

ISSN号：0032-5910

卷、期、页：卷476

发表日期：2026-06-01

影响因子：4.500000

期刊分区（SCI为中科院分区）：二区

收录情况：SCI（科学引文索引印刷版）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：Powder Technology

通讯作者：郭佩琦,兰松洲,彭梦甜,王炫杰,朱世萌,魏子一

第一作者：曹睿,张玉明

论文类型：期刊论文

论文概要：曹睿,郭佩琦,兰松洲,张玉明,彭梦甜,王炫杰,朱世萌,魏子一，Interfacial self-assembled floating layer of fly ash fine particles: Synergistic anti-wetting mechanism induced by surface organics and micro-nano topology，Powder Technology，2026，卷476

论文题目：Interfacial self-assembled floating layer of fly ash fine particles: Synergistic anti-wetting mechanism induced by surface organics and micro-nano topology