Loading...
Please wait, while we are loading the content...
Similar Documents
Eucheuma cottonii Seaweed-Based Biochar for Adsorption of Methylene Blue Dye
| Content Provider | MDPI |
|---|---|
| Author | Saeed, Anwar Harun, Noorfidza Sufian, Suriati Siyal, Ahmer Zulfiqar, Muhammad Bilad, Muhammad Vagananthan, Arvind Al-Fakih, Amin Ghaleb, Aiban Almahbashi, Najib |
| Copyright Year | 2020 |
| Description | Pollution from dye containing wastewater leads to a variety of environmental problems, which can destroy plant life and eco-systems. This study reports development of a seaweed-based biochar as an adsorbent material for efficient adsorption of methylene blue (MB) dye from synthetic wastewater. The Eucheuma cottonii seaweed biochar was developed through pyrolysis using a tube furnace with N2 gas, and the properties were later improved by sulfuric acid treatment. The adsorption studies were conducted in a batch experimental setup under initial methylene blue concentrations of 50 to 200 mg/L, solution pH of 2 to 10, and temperature of 25 to 75 °C. The characterization results show that the developed biochar had a mesoporous pore morphology. The adsorbent possessed the surface area, pore size, and pore volume of 640 m2/g, 2.32 nm, and 0.54 cm3/g, respectively. An adsorption test for 200 mg/L of initial methylene blue at pH 4 showed the best performance. The adsorption data of the seaweed-based biochar followed the Langmuir isotherm adsorption model and the pseudo-second-order kinetic model, with the corresponding R2 of 0.994 and 0.995. The maximum adsorption capacity of methylene blue using the developed seaweed‑based biochar was 133.33 mg/g. The adsorption followed the chemisorption mechanism, which occurred via the formation of a monolayer of methylene blue dye on the seaweed-based biochar surface. The adsorption performance of the produced seaweed biochar is comparable to that of other commercial adsorbents, suggesting its potential for large-scale applications. |
| Starting Page | 10318 |
| e-ISSN | 20711050 |
| DOI | 10.3390/su122410318 |
| Journal | Sustainability |
| Issue Number | 24 |
| Volume Number | 12 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2020-12-10 |
| Access Restriction | Open |
| Subject Keyword | Sustainability Water Science and Technology Biochar Pyrolysis Methylene Blue Adsorption Seaweed |
| Content Type | Text |
| Resource Type | Article |
