| Title |
Production and characterisation of activated carbon and carbon nanotubes from potato peel waste and their application in heavy metal removal |
| ID_Doc |
6543 |
| Authors |
Osman, AI; Blewitt, J; Abu-Dahrieh, JK; Farrell, C; Al-Muhtaseb, AH; Harrison, J; Rooney, DW |
| Title |
Production and characterisation of activated carbon and carbon nanotubes from potato peel waste and their application in heavy metal removal |
| Year |
2019 |
| Published |
Environmental Science And Pollution Research, 26, 36 |
| DOI |
10.1007/s11356-019-06594-w |
| Abstract |
Herein, activated carbon (AC) and carbon nanotubes (CNTs) were synthesised from potato peel waste (PPW). Different ACs were synthesised via two activation steps: firstly, with phosphoric acid (designated PP) and then using potassium hydroxide (designated PK). The AC produced after the two activation steps showed a surface area as high as 833 m(2) g(-1) with a pore volume of 0.44 cm(3) g(-1), where the raw material of PPW showed a surface area < 4 m(2) g(-1). This can help aid and facilitate the concept of the circular economy by effectively up-cycling and valorising waste lignocellulosic biomass such as potato peel waste to high surface area AC and subsequently, multi-walled carbon nanotubes (MWCNTs). Consequently, MWCNTs were prepared from the produced AC by mixing it with the nitrogen-based material melamine and iron precursor, iron (III) oxalate hexahydrate. This produced hydrophilic multi-wall carbon nanotubes (MWCNTs) with a water contact angle of theta = 14.97 degrees. Both AC and CNT materials were used in heavy metal removal (HMR) where the maximum lead absorption was observed for sample PK with a 84% removal capacity after the first hour of testing. This result signifies that the synthesis of these up-cycled materials can have applications in areas such as wastewater treatment or other conventional AC/CNT end uses with a rapid cycle time in a two-fold approach to improve the eco-friendly synthesis of such value-added products and the circular economy from a significant waste stream, i.e., PPW. |
| Author Keywords |
Potato peelwaste; Biomass; Activated carbon; Carbon nanotubes; Pyrolysis; Multi-wall carbon nanotubes |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000507283600096 |
| WoS Category |
Environmental Sciences |
| Research Area |
Environmental Sciences & Ecology |
| PDF |
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