All-into-one strategy to synthesize mesoporous hybrid silicate microspheres from naturally rich red palygorskite clay as high-efficient adsorbents | |
Department | 环境材料与生态化学研究发展中心 |
Wang WB (王文波)1,2; Tian GY (田光燕)1,3; Wang DD (王丹丹)1,2; Zhang ZF (张志芳)1,3; Kang YR (康玉茹)1,2; Zong L (宗莉)1,2; Wang AQ (王爱勤)1,2; Wang AQ(王爱勤) | |
2016 | |
Source Publication | Scientific Reports |
ISSN | 2045-2322 |
Volume | 6Pages:39599(1-14) |
Abstract | A mesoporous hybrid silicate microsphere with superior adsorption performance has been successfully synthesized by employing an “all-into-one” strategy and a simple one-pot hydrothermal process using naturally abundant low-grade red palygorskite (PAL) clay as raw material in the presence of nontoxic SiO32− and Mg2+ ions. As is expected, both the PAL and associated minerals transformed into a new amorphous mesoporous hybrid silicate microsphere without using any additional pore-forming template. The mesoporous silicate microsphere shows a large pore size of 37.74 nm, high specific surface area of 489.81 m2/g (only 54.67 m2/g for raw PAL) and negative surface potential of −43.3 mV, and its maximum adsorption capabilities for Methylene bule (MB) and Crystal violet (CV) reach 407.95 mg/g and 397.22 mg/g, respectively. Meanwhile, 99.8% of MB (only 53% for raw PAL) and 99.7% of CV (only 43% for raw PAL) were sucessfully removed from 200 mg/L of initial dye solution by only using 1 g/L of the adsorbent. In addition, the spent adsorbent can be easily regenerated and repeatly reused for muptiple cycles. The study on adsorption mechanism revealed that electrostatic attraction, hydrogen bonding and chemical complexing interactions are the main factors contributed to the high dye adsorption. |
Keyword | Palygorskite Silicate Adsorbent Mesoporous Dyes |
Subject Area | 环境材料与生态化学 |
DOI | 10.1038/srep39599 |
Funding Organization | National Natural Science Foundation of China (NO. 51403221;21377135);the “863” Project of the Chinese Ministry of Science and Technology (No. 2013AA032003);the key R & D program of Huai’an Science and Technology Bureau, Jiangsu, China (HAG2015082) |
Indexed By | SCI |
If | 4.259 |
Language | 英语 |
Funding Project | 功能复合材料组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/21057 |
Collection | 环境材料与生态化学研究发展中心 |
Corresponding Author | Wang AQ(王爱勤) |
Affiliation | 1.Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-materials and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China 2.R&D Center of Xuyi Palygorskite Applied Technology, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Xuyi 211700, P.R. China 3.University of the Chinese Academy of Sciences, Beijing 100049, P.R. China |
Recommended Citation GB/T 7714 | Wang WB ,Tian GY ,Wang DD ,et al. All-into-one strategy to synthesize mesoporous hybrid silicate microspheres from naturally rich red palygorskite clay as high-efficient adsorbents[J]. Scientific Reports,2016,6:39599(1-14). |
APA | Wang WB .,Tian GY .,Wang DD .,Zhang ZF .,Kang YR .,...&王爱勤.(2016).All-into-one strategy to synthesize mesoporous hybrid silicate microspheres from naturally rich red palygorskite clay as high-efficient adsorbents.Scientific Reports,6,39599(1-14). |
MLA | Wang WB ,et al."All-into-one strategy to synthesize mesoporous hybrid silicate microspheres from naturally rich red palygorskite clay as high-efficient adsorbents".Scientific Reports 6(2016):39599(1-14). |
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