| 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 |
| DOI |
10.15376/biores.18.2.3681-3693 |
| 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. |
| Author Keywords |
Biomass; Ash; Circular economy; Agricultural wastes; Wastewater treatment |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000972500500012 |
| WoS Category |
Materials Science, Paper & Wood |
| Research Area |
Materials Science |
| PDF |
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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