A facile synthesis of graphene oxide/locust bean gum hybrid aerogel for water purification. (15th February 2021)

• Record Type: Journal Article
• Authors: Li, Keding; Lei, Yuqing; Liao, Jun; Zhang, Yong
• Is Part Of: Carbohydrate polymers. Volume 254(2021)
• Publication Date: 2021-02-15
• Subjects: Locust bean gum -- Graphene oxide -- Hybrid aerogel -- Adsorption; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2020.117318
• Languages: English
• ISSNs: 0144-8617

Abstract

Graphical abstract: Highlights: Graphene oxide/locust bean gum aerogels were synthesized by ice crystal templating. The aerogels showed a network-like 3D structure with large specific surface area. The aerogels exhibited good adsorption efficiency and selectivity for Rhodamine-B. Almost 92.4 % of removal rate could be remained after ten cycles. Abstract: Graphene oxide/locust bean gum (GO/LBG) aerogels, synthesized in an ice crystal template without using any chemical modifiers, were used for the treatment of water pollution. Various characterization results showed that GO/LBG aerogel exhibited a network-like three-dimensional (3D) structure with large specific surface area. The adsorption data revealed that GO/LBG aerogels with GO/LBG mass ratio of 1:4 (GO/LBG-1 aerogels) exhibited more prominent adsorption properties for Rhodamine-B (RhB, 514.5 mg g −1 ) than Indigo Carmine (IC, 134.6 mg g −1 ). Simultaneously, GO/LBG-1 aerogels could selectively remove RhB from a binary mixed solution of RhB-IC dyes. Furthermore, GO/LBG-1 aerogels also displayed excellent reusability and could still reach 92.4 % after ten cycles. Based on the above results, GO/LBG-1 aerogel could be considered as an ideal adsorbent with potential application value for removing water-soluble RhB from wastewater.