La(OH) 3 -modified magnetic sodium carboxymethyl cellulose for sequential removal of pollutants: adsorption of phosphate
- PDF / 1,535,422 Bytes
- 9 Pages / 595.276 x 790.866 pts Page_size
- 71 Downloads / 185 Views
RESEARCH ARTICLE
La(OH)3-modified magnetic sodium carboxymethyl cellulose for sequential removal of pollutants: adsorption of phosphate and subsequent photocatalytical reduction of Cr(VI) Taiwan Liao 1 & Pengwei Huang 1 & Huiyu Song 1 & Jia Guo 2 & Xionghui Fu 1 & Xiang Yu 3 & Liang Peng 4 & Boping Han 4 & Yi Zhu 1 & Yuanming Zhang 1 Received: 5 February 2020 / Accepted: 26 June 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract In this study, La(OH)3-modified magnetic sodium carboxymethyl cellulose (La-MC) was prepared as adsorbents for phosphate, which exhibited excellent adsorption performance up to 62.98 mg P/g and magnetic property for easy recovery. The recovered adsorbents after phosphate sorption were subsequently used for photocatalytic reduction of Cr(VI) and possessed good photocatalytic activity. This work provided an excellent reference for developing a new way of extending life cycle of adsorbents by combining phosphate adsorption with photocatalysis for sequential removal of pollutants from water in the future. Keywords La(OH)3-modified . Magnetic adsorbent . Adsorption of phosphate . Photocatalytic reduction of Cr(VI) . Sequential removal of pollutants
Introduction Phosphate pollution is regarded as an urgent environmental problem, because excessive release of phosphate to the water body leads to eutrophication, which results in the algae bloom and the water quality deterioration. Adsorption is taken as one of the promising technologies to remove phosphate owing to
Responsible Editor: Tito Roberto Cadaval Jr Electronic supplementary material The online version of this article (https://doi.org/10.1007/s11356-020-09904-9) contains supplementary material, which is available to authorized users. * Yi Zhu [email protected] * Yuanming Zhang [email protected] 1
Department of Chemistry, Jinan University, Guangzhou 510632, People’s Republic of China
2
Department of Ecology, Jinan University, Guangzhou 510632, People’s Republic of China
3
Analytical & Testing Center, Jinan University, Guangzhou 510632, People’s Republic of China
4
Institute of Hydrobiology, Jinan University, Guangzhou 510632, People’s Republic of China
low cost, good performance, and easy operation (Wu et al. 2017; Yang et al. 2018). There are many types of adsorbent materials which have been developed, including natural materials (natural clays, natural waste materials) (Jiang et al. 2010; Vaghetti et al. 2009), waste materials (industrial waste materials, agricultural waste materials) (Bhatnagar and Jain 2005; Sud et al. 2008), and synthetic materials (synthetic metal oxides/hydroxides and metal oxides/hydroxides-based materials). In particular, lanthanum-containing materials as synthetic adsorbents have been extensively investigated (Shi et al. 2019). Especially, La(OH)3-modified materials, such as magnetic adsorbent MFC@La(OH)3, La(OH)3/Fe3O4 nanocomposites (Wu et al. 2017), and lanthanum doped hydrochar (Dai et al. 2014), displayed various superiorities in the adsorption of phosphate including high r
Data Loading...
