Size-dependent sorption of myo-inositol hexakisphosphate and orthophosphate on nano-gamma-Al2O3

CORC > 武汉物理与数学研究所 > 中国科学院武汉物理与数学研究所 > 磁共振应用研究部

	Size-dependent sorption of myo-inositol hexakisphosphate and orthophosphate on nano-gamma-Al2O3
	Yan, Yupeng 1; Koopal, Luuk K.2; Li, Wei 4; Zheng, Anmin 3; Yang, Jun 3; Liu, Fan 1; Feng, Xionghan 1
刊名	JOURNAL OF COLLOID AND INTERFACE SCIENCE
	2015-08-01
卷号	451 页码:85-92
关键词	Nano-gamma-Al2O3 Particle size myo-Inositol hexakisphosphate Orthophosphate Sorption Surface precipitation
英文摘要	The effects of particle size (5, 35 and 70 nm) on the sorption of myo-inositol hexakisphosphate (IHP) and inorganic phosphate (KH2PO4, Pi) on gamma-Al2O3 nanoparticles were investigated using batch sorption experiments, zeta potential measurements and solid-state nuclear magnetic resonance spectroscopy (NMR). The results show that the maximum sorption densities (mu mol m(-2)) for IHP and Pi increase with decreasing gamma-Al2O3 particle size. The sorption affinity of gamma-Al2O3 for IHP and Pi generally increases with decreasing particle size, and the sorption affinity for IHP is approximately one order of magnitude greater than that for Pi. In our experimental time scale, surface complexation is the main mechanism for IHP and Pi sorption on large size gamma-Al2O3. While an additional surface precipitation mechanism, indicated by solid-state P-31 and Al-27 NMR data, is partly responsible for the greater sorption density on very small size gamma-Al2O3. Compared with Pi, the effect of particle size on the sorption of IHP is more pronounced. The results suggest a size-dependent surface reactivity of Al2O3 nanoparticles with Pi/IHP. The underlying mechanism will also be relevant for other small nanosize (hydr)oxide particles and is important for our understanding of the role of small nanoparticles in controlling the mobility and fate of organic and inorganic phosphates in the environment. (C) 2015 Elsevier Inc. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Chemistry, Physical
研究领域[WOS]	Chemistry
关键词[WOS]	NUCLEAR-MAGNETIC-RESONANCE ; AMORPHOUS ALUMINUM HYDROXIDES ; ALPHA-FEOOH NANORODS ; SOLID-STATE NMR ; PHOSPHATE ADSORPTION ; SURFACE COMPLEXATION ; ATR-FTIR ; INOSITOL HEXAPHOSPHATE ; ORGANIC PHOSPHORUS ; NANOPARTICLE SIZE
收录类别	SCI
语种	英语
WOS记录号	WOS:000354150900011
公开日期	2015-07-28
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/4743]
专题	武汉物理与数学研究所_磁共振应用研究部
作者单位	1.Huazhong Agr Univ, Coll Resources & Environm, Minist Agr, Key Lab Arable Land Conservat Middle & Lower Reac, Wuhan 430070, Peoples R China 2.Wageningen Univ & Res, Phys Chem & Soft Matter, NL-6703 HB Wageningen, Netherlands 3.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan Ctr Magnet Resonance, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 4.Nanjing Univ, Sch Earth Sci & Engn, Minist Educ, Key Lab Surficial Geochem, Nanjing 210093, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Yan, Yupeng,Koopal, Luuk K.,Li, Wei,et al. Size-dependent sorption of myo-inositol hexakisphosphate and orthophosphate on nano-gamma-Al2O3[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2015,451:85-92.
APA	Yan, Yupeng.,Koopal, Luuk K..,Li, Wei.,Zheng, Anmin.,Yang, Jun.,...&Feng, Xionghan.(2015).Size-dependent sorption of myo-inositol hexakisphosphate and orthophosphate on nano-gamma-Al2O3.JOURNAL OF COLLOID AND INTERFACE SCIENCE,451,85-92.
MLA	Yan, Yupeng,et al."Size-dependent sorption of myo-inositol hexakisphosphate and orthophosphate on nano-gamma-Al2O3".JOURNAL OF COLLOID AND INTERFACE SCIENCE 451(2015):85-92.