期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 384, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2019.121447
关键词
Co-hydroxyapatite; Cobalt-based catalyst; PMS; Co-catalytic; RhB
资金
- National Natural Science Foundation of China [U1501231, 21976042]
- Guangdong Provincial Key Laboratory of radioactive contamination control and resources [2017B030314182]
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control [2018B030322014]
- Science and Technology Research Programs of Guangzhou City [201804020072]
- Hongkong Scholarship [XJ2016037]
- University's 2017 training program for young top-notch personnels [BJ201706]
- Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2018)
Hydroxyapatite (HAP) is a promising supporter of catalyst due to its potential in immobilizing metals stably. HAP supported cobalt-based catalyst (Co-HAP) was synthesized via a facile ion exchange-calcination method to reduce the Co leaching. The synthesized Co-HAP was characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM), Transmission electron microscope (TEM), Brunauer-Emmett-Teller (BET) analysis and X-ray photoelectron spectroscopy (XPS). Cobalt ions were incorporated into HAP structure and Co3O4 on HAP surface. Co-HAP showed satisfactory performance in peroxymonosulfate (PMS) activation for eliminating Rhodamine B (RIB) in aqueous solution. Co-HAP even revealed a better activity than that of CoFe2O4. center dot OH, SO4 center dot- and O-1(2) were all involved in RhB degradation and O-1(2) played a leading role. High content of surface oxygen groups could be found on Co-HAP after RhB degradation, which might be resulted from the high amounts of hydroxyl groups. The presence of hydroxyl groups performed the co-catalytic activity of PMS activation in Co-HAP/PMS system.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据