Comparative Study of Adsorption of Methylene Blue and Basic Red 9 Using Rice Husks of Different Origins
Methylene blue (MB) and basic red 9 (BR9) are cationic dyes that are commonly used in the dye industry and negatively affect humans and other living organisms. This study compares the performance of Indonesian rice husk (IRH) and Hungarian rice husk (HRH) as bio-adsorbents for removing MB and BR9 fr...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-09-01
|
| Series: | Recycling |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2313-4321/8/5/74 |
| _version_ | 1797572407228104704 |
|---|---|
| author | Hadid Sukmana Etelka Tombácz Gergő Ballai Gábor Kozma Zoltán Kónya Cecilia Hodúr |
| author_facet | Hadid Sukmana Etelka Tombácz Gergő Ballai Gábor Kozma Zoltán Kónya Cecilia Hodúr |
| author_sort | Hadid Sukmana |
| collection | DOAJ |
| description | Methylene blue (MB) and basic red 9 (BR9) are cationic dyes that are commonly used in the dye industry and negatively affect humans and other living organisms. This study compares the performance of Indonesian rice husk (IRH) and Hungarian rice husk (HRH) as bio-adsorbents for removing MB and BR9 from aqueous solutions. Chemical content, zeta potential, and Fourier-transform infrared spectroscopy analyses were used to characterize the rice husks (RHs). Adsorption studies were performed through batch experiments involving several parameters, namely, pH, adsorbent dose, initial dye concentration, contact time, and temperature to observe the self-association (aggregation) of MB and BR9. Adsorption kinetic studies showed that maximum dye removal was achieved at a contact time of 120 min. MB and BR9 adsorption followed a pseudo-second order kinetic model, and the BET multilayer isotherm model provided a better fit to the experimental data of MB and BR9 adsorption. The IRH adsorption capacities were 15.0 mg/g for MB and 7.2 mg/g for BR9, whereas those of HRH were 24.4 mg/g for MB and 8.3 mg/g for BR9. Therefore, these RHs are potential bio-adsorbents for removing MB and BR9 from aqueous solutions. |
| first_indexed | 2024-03-10T20:56:47Z |
| format | Article |
| id | doaj.art-92f53e95cefb4cd08a1b3c1d0ffe7865 |
| institution | Directory Open Access Journal |
| issn | 2313-4321 |
| language | English |
| last_indexed | 2024-03-10T20:56:47Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Recycling |
| spelling | doaj.art-92f53e95cefb4cd08a1b3c1d0ffe78652023-11-19T17:56:08ZengMDPI AGRecycling2313-43212023-09-01857410.3390/recycling8050074Comparative Study of Adsorption of Methylene Blue and Basic Red 9 Using Rice Husks of Different OriginsHadid Sukmana0Etelka Tombácz1Gergő Ballai2Gábor Kozma3Zoltán Kónya4Cecilia Hodúr5Doctoral School of Environmental Science, University of Szeged, Moszkvai krt. 9, 6725 Szeged, HungarySoós Research and Development Center, University of Pannonia, 8800 Nagykanizsa, HungaryDepartment of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér. 1, 6720 Szeged, HungaryDepartment of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér. 1, 6720 Szeged, HungaryDepartment of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér. 1, 6720 Szeged, HungaryDepartment of Biosystems Engineering, University of Szeged, Moszkvai krt. 9, 6725 Szeged, HungaryMethylene blue (MB) and basic red 9 (BR9) are cationic dyes that are commonly used in the dye industry and negatively affect humans and other living organisms. This study compares the performance of Indonesian rice husk (IRH) and Hungarian rice husk (HRH) as bio-adsorbents for removing MB and BR9 from aqueous solutions. Chemical content, zeta potential, and Fourier-transform infrared spectroscopy analyses were used to characterize the rice husks (RHs). Adsorption studies were performed through batch experiments involving several parameters, namely, pH, adsorbent dose, initial dye concentration, contact time, and temperature to observe the self-association (aggregation) of MB and BR9. Adsorption kinetic studies showed that maximum dye removal was achieved at a contact time of 120 min. MB and BR9 adsorption followed a pseudo-second order kinetic model, and the BET multilayer isotherm model provided a better fit to the experimental data of MB and BR9 adsorption. The IRH adsorption capacities were 15.0 mg/g for MB and 7.2 mg/g for BR9, whereas those of HRH were 24.4 mg/g for MB and 8.3 mg/g for BR9. Therefore, these RHs are potential bio-adsorbents for removing MB and BR9 from aqueous solutions.https://www.mdpi.com/2313-4321/8/5/74adsorptionbasic red 9bio-adsorbentmethylene bluerice husk |
| spellingShingle | Hadid Sukmana Etelka Tombácz Gergő Ballai Gábor Kozma Zoltán Kónya Cecilia Hodúr Comparative Study of Adsorption of Methylene Blue and Basic Red 9 Using Rice Husks of Different Origins Recycling adsorption basic red 9 bio-adsorbent methylene blue rice husk |
| title | Comparative Study of Adsorption of Methylene Blue and Basic Red 9 Using Rice Husks of Different Origins |
| title_full | Comparative Study of Adsorption of Methylene Blue and Basic Red 9 Using Rice Husks of Different Origins |
| title_fullStr | Comparative Study of Adsorption of Methylene Blue and Basic Red 9 Using Rice Husks of Different Origins |
| title_full_unstemmed | Comparative Study of Adsorption of Methylene Blue and Basic Red 9 Using Rice Husks of Different Origins |
| title_short | Comparative Study of Adsorption of Methylene Blue and Basic Red 9 Using Rice Husks of Different Origins |
| title_sort | comparative study of adsorption of methylene blue and basic red 9 using rice husks of different origins |
| topic | adsorption basic red 9 bio-adsorbent methylene blue rice husk |
| url | https://www.mdpi.com/2313-4321/8/5/74 |
| work_keys_str_mv | AT hadidsukmana comparativestudyofadsorptionofmethyleneblueandbasicred9usingricehusksofdifferentorigins AT etelkatombacz comparativestudyofadsorptionofmethyleneblueandbasicred9usingricehusksofdifferentorigins AT gergoballai comparativestudyofadsorptionofmethyleneblueandbasicred9usingricehusksofdifferentorigins AT gaborkozma comparativestudyofadsorptionofmethyleneblueandbasicred9usingricehusksofdifferentorigins AT zoltankonya comparativestudyofadsorptionofmethyleneblueandbasicred9usingricehusksofdifferentorigins AT ceciliahodur comparativestudyofadsorptionofmethyleneblueandbasicred9usingricehusksofdifferentorigins |