A sustainable approach to fabricate new 1D and 2D nanomaterials from natural abundant palygorskite clay for antibacterial and adsorption | |
Department | 甘肃省黏土矿物应用重点实验室 |
Dong WK (董文凯)1,2; Lu YS (卢予沈)1,2; Wang WB (王文波)1,2; Zhang Mingming3; Jing Yanmei3; Wang AQ (王爱勤)1,2 | |
The second department | 功能复合材料组 |
2020-02-15 | |
Source Publication | Chemical Engineering Journal |
Volume | 382Issue:无Pages:122984 |
Abstract | It is always highly desirable to synthesize functional nanomaterials using cheap, naturally abundant clay deposits as starting materials, but the major challenge is lack of new way to utilize all of components in clay deposits and minimize the generation of waste. In order to resolve the problem, we proposed a “split” and “reconstruct” strategy to tailor palygorskite (Pal) clay deposits, and used each component to synthesizing three new nanomaterials with different morphologies and functions: copper silicate nanotube (CuSiO3), silica nanotube@Cu nanoparticles (SiO2-NT@Cu), and Mg-Al-Fe layered double hydroxide (LDH). The Pal clay deposits were first subjected to an acid bleaching process to obtain silica nanorods and solution rich in Mg(II), Al(II), Fe(III) ions. The silica as a Si source may react with Cu(II) to form CuSiO3 nanotube, which was allowed to be in-situ reduced in vapor or liquid phase to produce coral-like SiO2-NT@Cu nanocomposite with well-distributed Cu nanoparticles (CuNPs). The solution rich in Mg(II), Al(II), Fe(III) was used to synthesize Mg-Al-Fe LDH nanosheets by a simple co-precipitation process. It was confirmed that the tubular SiO2-NT@Cu nanocomposite can inhibit effectively the growth of E. coli and S. aureus, with the minimal inhibitory concentration (MIC) of 2.0 mg/mL and 0.6 mg/mL, respectively. The 2D nanolayered LDH compounds can capture efficiently and selectively anionic dye Congo Red (CR) with a maximum adsorption capacity of 254.14 ± 7.72 mg/g, due to an ion exchange and electrostatic attraction mechanism. This work provides a universal, cost-efficient and sustainable way to utilize all of components in low-grade natural clay deposits to synthesize useful nanomaterials with special functions, and also opens a new avenue for high-value utilization of abundant clay deposits. |
Keyword | Palygorskite Silicate Nanotube LDH Adsorption Antibacterial |
MOST Discipline Catalogue | 工学 ; 工学::材料科学与工程(可授工学、理学学位) |
DOI | 10.1016/j.cej.2019.122984 |
URL | 查看原文 |
Indexed By | SCI |
If | 8.355 |
Language | 英语 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/26269 |
Collection | 甘肃省黏土矿物应用研究重点实验室 |
Corresponding Author | Wang WB (王文波); Wang AQ (王爱勤) |
Affiliation | 1.Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China 2.Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China 3.Department of Clinical Laboratory Center, The Second Hospital of Lanzhou University, Lanzhou 730000, PR China |
Recommended Citation GB/T 7714 | Dong WK ,Lu YS ,Wang WB ,et al. A sustainable approach to fabricate new 1D and 2D nanomaterials from natural abundant palygorskite clay for antibacterial and adsorption[J]. Chemical Engineering Journal,2020,382(无):122984. |
APA | Dong WK ,Lu YS ,Wang WB ,Zhang Mingming,Jing Yanmei,&Wang AQ .(2020).A sustainable approach to fabricate new 1D and 2D nanomaterials from natural abundant palygorskite clay for antibacterial and adsorption.Chemical Engineering Journal,382(无),122984. |
MLA | Dong WK ,et al."A sustainable approach to fabricate new 1D and 2D nanomaterials from natural abundant palygorskite clay for antibacterial and adsorption".Chemical Engineering Journal 382.无(2020):122984. |
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