ScholarLens Back to search
2011•Journal of Functional BiomaterialsOpen access

Study on the preparation of modified bentonite and it's adsorption behavior on Pb~(2+)

Deng Li-jun

Open full text 1 citations

Abstract

The modification of sodium bentonite with EDTA by microwave were studied,based on the removal rate of Pb2+ as the reference index.The best modification conditions: bentonite 3g,EDTA 1g,pH value to 8,microwave power 500W,reaction temperature 35 ℃,microwave reaction 5min;Optimum adsorption conditions: adjust pH value to 5.83,adding 0.4g bentonite,oscillation temperature 30℃,batch adsorption 40min.The results showed that the Pb2+ removal rate may reach to 94% using the modified bentonite as adsorbent,the saturated adsorption weight is 29.67mg/g,the max adsorption ability of modified bentonite is twice sodium bentonite in weight.XRD shown that the dimension of the pillared interlayer was increased from 1.51 to 1.65nm,IR spectrum certified that appeared C—C adsorb peak,element analysis result shown that the organ C,N,H increased than the bentonite.

About this research paper

What this paper is about

The modification of sodium bentonite with EDTA by microwave were studied,based on the removal rate of Pb2+ as the reference index.The best modification conditions: bentonite 3g,EDTA 1g,pH value to 8,microwave power 500W,reaction temperature 35 ℃,microwave reaction 5min;Optimum adsorption conditions: adjust pH value to 5.83,adding 0.4g bentonite,oscillation temperature 30℃,batch adsorption 40min.The results showed that the Pb2+ removal rate may reach to 94% using the modified bentonite as adsorbent,the saturated adsorption weight is 29.67mg/g,the max adsorption ability of modified bentonite is twice sodium bentonite in weight.XRD shown that the dimension of the pillared interlayer was increased from 1.51 to 1.65nm,IR spectrum certified that appeared C—C adsorb peak,element analysis result shown that the organ C,N,H increased than the bentonite.

Why it matters

OpenAlex reports 1 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

The modification of sodium bentonite with EDTA by microwave were studied,based on the removal rate of Pb2+ as the reference index.The best modification conditions: bentonite 3g,EDTA 1g,pH value to 8,microwave power 500W,reaction temperature 35 ℃,microwave reaction 5min;Optimum adsorption conditions: adjust pH value to 5.83,adding 0.4g bentonite,oscillation temperature 30℃,batch adsorption 40min.The results showed that the Pb2+ removal rate may reach to 94% using the modified bentonite as adsorbent,the saturated adsorption weight is 29.67mg/g,the max adsorption ability of modified bentonite is twice sodium bentonite in weight.XRD shown that the dimension of the pillared interlayer was increased from 1.51 to 1.65nm,IR spectrum certified that appeared C—C adsorb peak,element analysis result shown that the organ C,N,H increased than the bentonite.

Key concepts: Bentonite, Adsorption, Materials science, Microwave, Slurry, Nuclear chemistry, Chemical engineering, Composite material

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Study on the preparation of modified bentonite and it's adsorption behavior on Pb~(2+) — Research Paper | ScholarLens