Synthesis and Properties of an Ecofriendly Superabsorbent Composite by Grafting the Poly(acrylic acid) onto the Surface of Dopamine-Coated Sea Buckthorn Branches

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	Synthesis and Properties of an Ecofriendly Superabsorbent Composite by Grafting the Poly(acrylic acid) onto the Surface of Dopamine-Coated Sea Buckthorn Branches
	Xu, Xiaohui 1; Bai, Bo 2; Ding, Chenxu 2; Wang, Honglun 2; Suo, Yourui 2
	2015-04-08
发表期刊	INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷号	54 期号:13 页码:3268-3278
文章类型	Article
摘要	With the purpose of decreasing production costs and mitigating negative effects on the environment, an ecofriendly superabsorbent composite (SB@PDA/PAA) was synthesized by grafting poly(acrylic acid) onto the surface of dopamine-coated waste sea buckthorn branches. The structure of the obtained products was analyzed using Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). The effects of pH level, salt concentration, cation type, and reswelling time on water absorbency were examined further. The results showed that the swelling behaviors of the superabsorbent composite were highly sensitive to the concentration of salt solution, cation type, and reswelling time. The swelling kinetics of SB@PDA/PAA in distilled water could be fitted well with a pseudo-second-order kinetic model. Moreover, the SB@PDA/PAA superabsorbent composites exhibited excellent water-retention properties and achieved a high degradability of 33.5 wt % when they were soaked in a soil solution for 90 days. On the basis of these investigations, it is believed that the obtained SB@PDA/PAA could have potential applications in agricultural or industrial areas because of their water superabsorption and retention capacities, high reswelling capability, and cost-effective and ecofriendly preparation and use. The proposed technology can also be extended to the synthesis of other natural biological resources and organic hybrid materials with similar structures.; With the purpose of decreasing production costs and mitigating negative effects on the environment, an ecofriendly superabsorbent composite (SB@PDA/PAA) was synthesized by grafting poly(acrylic acid) onto the surface of dopamine-coated waste sea buckthorn branches. The structure of the obtained products was analyzed using Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). The effects of pH level, salt concentration, cation type, and reswelling time on water absorbency were examined further. The results showed that the swelling behaviors of the superabsorbent composite were highly sensitive to the concentration of salt solution, cation type, and reswelling time. The swelling kinetics of SB@PDA/PAA in distilled water could be fitted well with a pseudo-second-order kinetic model. Moreover, the SB@PDA/PAA superabsorbent composites exhibited excellent water-retention properties and achieved a high degradability of 33.5 wt % when they were soaked in a soil solution for 90 days. On the basis of these investigations, it is believed that the obtained SB@PDA/PAA could have potential applications in agricultural or industrial areas because of their water superabsorption and retention capacities, high reswelling capability, and cost-effective and ecofriendly preparation and use. The proposed technology can also be extended to the synthesis of other natural biological resources and organic hybrid materials with similar structures.
WOS标题词	Science & Technology ; Technology
关键词[WOS]	SWELLING BEHAVIOR ; SUPRAMOLECULAR HYDROGELS ; AQUEOUS-SOLUTIONS ; SODIUM ALGINATE ; METHYLENE-BLUE ; DRUG-DELIVERY ; WHEAT-STRAW ; POLYDOPAMINE ; NANOCOMPOSITE ; ADSORPTION
收录类别	SCI
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Chemical
WOS记录号	WOS:000352751900003
引用统计	被引频次：64[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/5564
专题	中国科学院西北高原生物研究所
作者单位	1.Changan Univ, Coll Environm Sci & Engn, Xian 710054, Peoples R China 2.Chinese Acad Sci, Northwest Plateau Inst Biol, Xining 810001, Peoples R China
推荐引用方式 GB/T 7714	Xu, Xiaohui,Bai, Bo,Ding, Chenxu,et al. Synthesis and Properties of an Ecofriendly Superabsorbent Composite by Grafting the Poly(acrylic acid) onto the Surface of Dopamine-Coated Sea Buckthorn Branches[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2015,54(13):3268-3278.
APA	Xu, Xiaohui,Bai, Bo,Ding, Chenxu,Wang, Honglun,&Suo, Yourui.(2015).Synthesis and Properties of an Ecofriendly Superabsorbent Composite by Grafting the Poly(acrylic acid) onto the Surface of Dopamine-Coated Sea Buckthorn Branches.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,54(13),3268-3278.
MLA	Xu, Xiaohui,et al."Synthesis and Properties of an Ecofriendly Superabsorbent Composite by Grafting the Poly(acrylic acid) onto the Surface of Dopamine-Coated Sea Buckthorn Branches".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 54.13(2015):3268-3278.