| Title | Synthesis of Biomass-based Adsorbent from Rice Husk Ash for Copper Ions Adsorption |
|---|---|
| ID_Doc | 23766 |
| Authors | Liu, WL; Zhang, XW; Ren, HY; Hu, XC; Yang, XY; Liu, H |
| Title | Synthesis of Biomass-based Adsorbent from Rice Husk Ash for Copper Ions Adsorption |
| Year | 2023 |
| Published | Bioresources, 18, 2 |
| Abstract | To solve the problems of low utilization of agricultural waste rice husk and heavy metal pollution, this investigation prepared a cheap copper ion adsorbent using rice husk ash (RA). The maximum Cue+ adsorption capacity was 19.8 mg/g. X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), and surface area and porosity analyses were used to characterize the composition and structure of the material of silica-depleted rice husk ash (SDRA). The thermodynamics and kinetics of Cue+ adsorption by SDRA were studied for their relevance to the adsorption mechanism. The adsorption of copper ions by SDRA was in accordance with the Langmuir model and the pseudo-second-order kinetic model. Furthermore, the increases in specific surface area and oxygen-containing functional groups following silica removal were primarily responsible for SDRA's enhanced adsorption ability. And this is the first time that Cue+ adsorbent has been prepared from the by-product of the synthesis of silane from rice husk ash. So, its synthesis cost is very low. Moreover, the preparation technique of SDRA is a revolutionary method of adsorbent creation that is both economical and environmentally benign. |
| https://bioresources.cnr.ncsu.edu/wp-content/uploads/2023/04/BioRes_18_2_3681_Liu_ZRHYL_Prep_Biobased_Adsorbent_Rice_Husk_Copper_Ions_22201.pdf |
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