NDLI: Preparation, characterization of carboxylated bamboo fibers and their adsorption for lead(II) ions in aqueous solution

Content Provider	Springer Nature Link
Author	Wang, Shuaiyang Wang, Linping Kong, Weiqing Ren, Junli Liu, Chuanfu Wang, Kun Sun, Runcang She, Diao
Copyright Year	2013
Abstract	The present study was conducted to develop a simple and versatile method to prepare carboxylated bamboo fibers which can be applied as potential bio-adsorbent for metal ions removal due to the high content of carboxyl groups. The chemical modification of bamboo fibers with citric acid (CA) was carried out by friendly semi-dry oven method. The resulting products with carboxyl group content between 1.99 and 4.13 mmol/g were accessible by changing ultrasonic pretreatment time, reaction temperature, reaction time and the amounts of catalyst and citric acid in order to minimize cross-linking reaction and thereby maximize carboxyl groups content. The characterization of the resulting products confirmed that carboxyl groups were successfully grafted onto surface of bamboo fibers. Moreover, the carboxylated bamboo fibers could be applied as bio-adsorbent for the removal of lead(II) ions from aqueous solution. Results showed that the adsorption capacity of Pd2+ could reach 127.1 mg/g for carboxylated bamboo fibers with 4.13 mmol/g carboxyl group content prepared under the ultrasonic pretreatment for 20 min at the CA/bamboo fibers weight ratio of 4.0 in the catalyst amount of 30 wt% at 120 °C for 90 min and the carboxylated bamboo fibers exhibited highly efficient regeneration with no significant loss of adsorption capacity of lead ion after five repeated adsorption/desorption cycles.
Starting Page	2091
Ending Page	2100
Page Count	10
File Format	PDF
ISSN	09690239
Journal	Cellulose
Volume Number	20
Issue Number	4
e-ISSN	1572882X
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-05-15
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Carboxylated bamboo fibers Semi-dry oven method Carboxyl groups Adsorption Bioorganic Chemistry Physical Chemistry Organic Chemistry Polymer Sciences
Content Type	Text
Resource Type	Article
Subject	Polymers and Plastics

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