Ceria nanoparticles supported on carbon nanotubes for the removal of arsenate from water
By Xianjia Peng, Z. Luan, Jun Ding, Ze-chao Di, Yan-hui Li, B. Tian. 2005
275 citations recorded by the source corpus.
A novel adsorbent, ceria supported on carbon nanombes (CeO2-CNTs), was developed for the removal of arsenate from water. The experiments show that CeO2-CNTs is an effective adsorbent for arsenate, and the adsorption is pH-dependent. Ca2+ and Mg2+ significantly enhanced its adsorption capacity, which suggests that it is a promising adsorbent for drinking water purification. Under natural pH conditions, an increase from 0 to 10 mg/L in the concentration of Ca2+ and Mg2+ results in an increase from 10 to 81.9 and 78.8 mg/g in the amount of As(V) adsorbed, respectively. The loaded adsorbent can be efficiently regenerated by diluted NaOH, and a regeneration efficiency of 94% was achieved using 0.1 mol/L NaOH. The adsorption mechanism was also suggested. (C) 2004 Elsevier B.V. All rights reserved.
Subfields: Environmental Chemistry, Materials Chemistry, Water Science and Technology
View Paper: https://www.semanticscholar.org/paper/9d5fff5c59444c7b0c45b9b6f13337c9176ad06c
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In Materials Chemistry
In Water Science and Technology
Citations in the corpus
- Nanomaterials and Water Purification: Opportunities and Challenges (2005, background): “Peng et al. (2005) have recently developed a novel sorbent with high surface area (189 m2/g) consisting of cerium oxide supported on carbon nanotubes (CeO2-CNTs).”
- Applications of nanomaterials in water treatment and environmental remediation (2014, background): “have fabricated a high-surface area (189 m(2)$g) arsenate sorbent by cerium oxide (CeO2) supported on CNTs [44].”
- Nanotechnology and Water Treatment: Applications and Emerging Opportunities (2008, background): “Although the CeO2-CNTs were effective sorbents for As(V), addition of the divalent cations Ca(II) and Mg(II) at concentrations ranging between 1 and 10 mg/l was reported to increase the amount of sorbed As(V) (from 10 to 82 mg/g) (Peng et al. 2005).”