Scale inhibition performance and mechanism of sulfamic/amino acids modified polyaspartic acid against calcium sulfate

doi:10.1016/j.desal.2017.06.016

	Scale inhibition performance and mechanism of sulfamic/amino acids modified polyaspartic acid against calcium sulfate
	Zhang, Shaopeng 1; Qu, Haojie 1; Yang, Zhen 1; Fu, Chang-e 2; Tian, Ziqi 3; Yang, Weiben 1
	2017-10-01
发表期刊	DESALINATION
ISSN	0011-9164
卷号	419 页码:152-159
摘要	Modified polyaspartic acid (PASP) scale inhibitors, Tyr-SA-PASP and Trp-SA-PASP, were prepared through grafting copolymerization on PASP with sulfamic/amino acids, and then applied for the inhibition of calcium sulfate from cooling water. Scale inhibition performance evaluation demonstrated Tyr-SA-PASP and Trp-SA-PASP were two cost-effective scale inhibitors for the inhibition of calcium sulfate: Compared to PASP and two commercial scale inhibitors (PAPEMP and JH-907), both modified PASP scale inhibitors exhibited higher inhibition performance, due to coordination between the deprotonation of carboxylic acid and phenolic hydroxyl groups of Tyr-SA-PASP and carboxylic acid groups of Trp-SA-PASP and Ca2+. Scale inhibition mechanism was investigated from microscopic viewpoints: coordination was the intrinsic driving force; Modified PASP scale inhibitors significantly damaged the crystalline structure of calcium sulfate scale, which resulted from coordination between functional groups on modified PASP scale inhibitors and Ca2+; The scale inhibition ability of modified PASP scale inhibitors came from the prevention of the growth of crystal planes ({040}, {041} and {113}). The current study provided a strategy for the design of scale inhibitors from the viewpoint of chemical structures.
关键词	Modified polyaspartic acid scale inhibitors COOLING WATER-SYSTEMS Calcium sulfate scale NATURAL ORGANIC-MATTER Differential absorbance spectroscopy METAL-ION BINDING DFT calculation DISPERSION CAPACITY Scale inhibition mechanism CORROSION INHIBITION GRAFTED COPOLYMER HUMIC SUBSTANCES PRECIPITATION CHITOSAN DESALINATION
DOI	10.1016/j.desal.2017.06.016
收录类别	SCIE
语种	英语
WOS研究方向	Engineering ; Water Resources
WOS类目	Engineering, Chemical ; Water Resources
WOS记录号	WOS:000410017800016
出版者	ELSEVIER SCIENCE BV
原始文献类型	Article
EISSN	1873-4464
引用统计	被引频次：82[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.library.ouchn.edu.cn/handle/39V7QQFX/168377
专题	国家开放大学江苏分部
通讯作者	Yang, Zhen; Yang, Weiben
作者单位	1.Nanjing Normal Univ, Sch Chem & Mat Sci, Jiangsu Prov Key Lab Mat Cycling & Pollat Control, Nanjing 210023, Jiangsu, Peoples R China; 2.Jiangsu Open Univ, Coll Environm & Ecol, Nanjing 210036, Jiangsu, Peoples R China; 3.Univ Calif Riverside, Dept Chem, Riverside, CA 92521 USA
推荐引用方式 GB/T 7714	Zhang, Shaopeng,Qu, Haojie,Yang, Zhen,et al. Scale inhibition performance and mechanism of sulfamic/amino acids modified polyaspartic acid against calcium sulfate[J]. DESALINATION,2017,419:152-159.
APA	Zhang, Shaopeng,Qu, Haojie,Yang, Zhen,Fu, Chang-e,Tian, Ziqi,&Yang, Weiben.(2017).Scale inhibition performance and mechanism of sulfamic/amino acids modified polyaspartic acid against calcium sulfate.DESALINATION,419,152-159.
MLA	Zhang, Shaopeng,et al."Scale inhibition performance and mechanism of sulfamic/amino acids modified polyaspartic acid against calcium sulfate".DESALINATION 419(2017):152-159.