干旱区生态环境知识资源中心(Arid): Development and Characterization of Lignin-Based Hydrogel for Use in Agricultural Soils: Preliminary Evidence

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DOI	10.1002/clen.201900101
	Development and Characterization of Lignin-Based Hydrogel for Use in Agricultural Soils: Preliminary Evidence
	Mazloom, Najmeh 1; Khorassani, Reza 1; Zohuri, Gholam Hossein 2; Emami, Hojat 1; Whalen, Joann 3
通讯作者	Khorassani, Reza
来源期刊	CLEAN-SOIL AIR WATER
ISSN	1863-0650
EISSN	1863-0669
出版年	2019
卷号	47 期号:11
英文摘要	In arid and semi-arid regions of the world, agricultural production is greatly limited by water scarcity and inefficient water use. Water-absorbent hydrogels are a technological solution that can retain soil water for plants. A lignin-based hydrogel as a natural plant-based water absorbent is prepared from lignin alkali polymers and poly(ethylene glycol) diglycidyl ether (PEGDGE) in adjusted alkali (NaOH) solution. The maximum swelling capacity of the hydrogel is achieved in 1.5 m NaOH with 0.5 mmol PEGDGE g lignin -1. Water swelling capacity is 34 g g Hydrogel -1 dry weight of hydrogel in distilled water, which is reduced to 53% and 64% in 0.1 m NaCl and 0.1 m CaCl2 solution, respectively. Biodegradability and phytotoxicity tests show that 6.5% of the sample mass decomposed after 40 days of incubation in soil solution media and the hydrogel is not phytotoxic to wheat seeds. These findings support the use of the lignin-based hydrogel as an environmentally friendly additive to promote water retention in dry, saline soils. Due to the limitations of this study, further assessments are needed in order to understand the efficiency of lignin-based hydrogel application in different soils with different biota.
英文关键词	biodegradability lignin phytotoxicity soil conditioner superabsorbent hydrogels
类型	Article
语种	英语
国家	Iran ; Canada
收录类别	SCI-E
WOS记录号	WOS:000492292000001
WOS关键词	SUPERABSORBENT HYDROGELS ; DEGRADATION ; CLAY
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Marine & Freshwater Biology ; Water Resources
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
EI主题词	2019-10-15
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310279
作者单位	1.Ferdowsi Univ Mashhad, Dept Soil Sci, Mashhad 9177948974, Razavi Khorasan, Iran; 2.Ferdowsi Univ Mashhad, Dept Chem, Mashhad 9177948974, Razavi Khorasan, Iran; 3.McGill Univ, Dept Nat Resource Sci, Montreal, PQ H9X 3V9, Canada
推荐引用方式 GB/T 7714	Mazloom, Najmeh,Khorassani, Reza,Zohuri, Gholam Hossein,et al. Development and Characterization of Lignin-Based Hydrogel for Use in Agricultural Soils: Preliminary Evidence[J],2019,47(11).
APA	Mazloom, Najmeh,Khorassani, Reza,Zohuri, Gholam Hossein,Emami, Hojat,&Whalen, Joann.(2019).Development and Characterization of Lignin-Based Hydrogel for Use in Agricultural Soils: Preliminary Evidence.CLEAN-SOIL AIR WATER,47(11).
MLA	Mazloom, Najmeh,et al."Development and Characterization of Lignin-Based Hydrogel for Use in Agricultural Soils: Preliminary Evidence".CLEAN-SOIL AIR WATER 47.11(2019).