Adsorption Behavior of Cu(II) to Silica-Humics Composite Aerogels
Silica aerogel is a kind of nanoscale amorphous solid mesoporous material made by agglomerating colloidal particles with gas as dispersion medium, providing silica aerogel with high surface area and absorptive performance. The humics contain a large number of carboxyl which brings a strong adsorption behavior for Cu(II). The morphology and structure of the as-prepared silica-humics composite aerogels were prepared via sol-gel method. In this paper, the adsorption behavior of 10 mg/L Cu(II) to silica-humics composite aerogels was studied. The adsorption parameters such as pH, temperature and the amount of silica-humics composite aerogels were studied to achieve the optimal conditions. This work opens a new perspective for the Cu(II) removal from contaminated water.
KeywordsSilica Humics Composite aerogels Adsorption
The authors acknowledge the financial support provided by the National Science Fund of China (No. 51674225, No. 51774252), the Innovative Talents Foundation in Universities in Henan Province (No. 18HASTIT011), the Educational Commission of Henan Province of China (No. 17A450001, 18A450001), and the China Postdoctoral Science Foundation (No. 2017M622375).
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