Chemical activation of hickory and peanut hull hydrochars for removal of lead and methylene blue from aqueous solutions
Hickory and peanut hydrochars were chemically activated with KOH and H3PO4 and tested for their ability to remove methylene blue and lead from aqueous solutions. The physicochemical characteristics of the activated hydrochars determined were surface area, pore volume, and elemental composition. Kine...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2017-01-01
|
| Series: | Chemical Speciation & Bioavailability |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/09542299.2017.1403294 |
| _version_ | 1818137101824163840 |
|---|---|
| author | June Fang Bin Gao Ahmed Mosa Lu Zhan |
| author_facet | June Fang Bin Gao Ahmed Mosa Lu Zhan |
| author_sort | June Fang |
| collection | DOAJ |
| description | Hickory and peanut hydrochars were chemically activated with KOH and H3PO4 and tested for their ability to remove methylene blue and lead from aqueous solutions. The physicochemical characteristics of the activated hydrochars determined were surface area, pore volume, and elemental composition. Kinetics and isotherm studies were then conducted on methylene blue adsorption. Compared to their nonactivated counterparts, the chemically activated hydrochars had higher surface areas and more functional groups. Activated hydrochars also had greater methylene blue and lead adsorption rates, which can be attributed to the improved physicochemical characteristics. H3PO4 activated hydrochars removed more contaminants than the corresponding KOH ones. |
| first_indexed | 2024-12-11T09:50:57Z |
| format | Article |
| id | doaj.art-32d70de1128349b589237cd23dc9f9e5 |
| institution | Directory Open Access Journal |
| issn | 0954-2299 2047-6523 |
| language | English |
| last_indexed | 2024-12-11T09:50:57Z |
| publishDate | 2017-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Chemical Speciation & Bioavailability |
| spelling | doaj.art-32d70de1128349b589237cd23dc9f9e52022-12-22T01:12:25ZengTaylor & Francis GroupChemical Speciation & Bioavailability0954-22992047-65232017-01-0129119720410.1080/09542299.2017.14032941403294Chemical activation of hickory and peanut hull hydrochars for removal of lead and methylene blue from aqueous solutionsJune Fang0Bin Gao1Ahmed Mosa2Lu Zhan3University of FloridaUniversity of FloridaUniversity of FloridaUniversity of FloridaHickory and peanut hydrochars were chemically activated with KOH and H3PO4 and tested for their ability to remove methylene blue and lead from aqueous solutions. The physicochemical characteristics of the activated hydrochars determined were surface area, pore volume, and elemental composition. Kinetics and isotherm studies were then conducted on methylene blue adsorption. Compared to their nonactivated counterparts, the chemically activated hydrochars had higher surface areas and more functional groups. Activated hydrochars also had greater methylene blue and lead adsorption rates, which can be attributed to the improved physicochemical characteristics. H3PO4 activated hydrochars removed more contaminants than the corresponding KOH ones.http://dx.doi.org/10.1080/09542299.2017.1403294Activated carbonactivationadsorptionheavy metalsorganic pollutants |
| spellingShingle | June Fang Bin Gao Ahmed Mosa Lu Zhan Chemical activation of hickory and peanut hull hydrochars for removal of lead and methylene blue from aqueous solutions Chemical Speciation & Bioavailability Activated carbon activation adsorption heavy metals organic pollutants |
| title | Chemical activation of hickory and peanut hull hydrochars for removal of lead and methylene blue from aqueous solutions |
| title_full | Chemical activation of hickory and peanut hull hydrochars for removal of lead and methylene blue from aqueous solutions |
| title_fullStr | Chemical activation of hickory and peanut hull hydrochars for removal of lead and methylene blue from aqueous solutions |
| title_full_unstemmed | Chemical activation of hickory and peanut hull hydrochars for removal of lead and methylene blue from aqueous solutions |
| title_short | Chemical activation of hickory and peanut hull hydrochars for removal of lead and methylene blue from aqueous solutions |
| title_sort | chemical activation of hickory and peanut hull hydrochars for removal of lead and methylene blue from aqueous solutions |
| topic | Activated carbon activation adsorption heavy metals organic pollutants |
| url | http://dx.doi.org/10.1080/09542299.2017.1403294 |
| work_keys_str_mv | AT junefang chemicalactivationofhickoryandpeanuthullhydrocharsforremovalofleadandmethylenebluefromaqueoussolutions AT bingao chemicalactivationofhickoryandpeanuthullhydrocharsforremovalofleadandmethylenebluefromaqueoussolutions AT ahmedmosa chemicalactivationofhickoryandpeanuthullhydrocharsforremovalofleadandmethylenebluefromaqueoussolutions AT luzhan chemicalactivationofhickoryandpeanuthullhydrocharsforremovalofleadandmethylenebluefromaqueoussolutions |