relation: https://khub.utp.edu.my/scholars/12368/
title: Eucheuma cottonii seaweed-based biochar for adsorption of methylene blue dye
creator: Saeed, A.A.H.
creator: Harun, N.Y.
creator: Sufian, S.
creator: Siyal, A.A.
creator: Zulfiqar, M.
creator: Bilad, M.R.
creator: Vagananthan, A.
creator: Al-Fakih, A.
creator: Ghaleb, A.A.S.
creator: Almahbashi, N.
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. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
publisher: MDPI
date: 2020
type: Article
type: PeerReviewed
identifier:   Saeed, A.A.H. and Harun, N.Y. and Sufian, S. and Siyal, A.A. and Zulfiqar, M. and Bilad, M.R. and Vagananthan, A. and Al-Fakih, A. and Ghaleb, A.A.S. and Almahbashi, N.  (2020) Eucheuma cottonii seaweed-based biochar for adsorption of methylene blue dye.  Sustainability (Switzerland), 12 (24).  pp. 1-15.  ISSN 20711050     
relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85098481624&doi=10.3390%2fsu122410318&partnerID=40&md5=90a6e9bd02ae6fcb6affc15d11f6803b
relation: 10.3390/su122410318
identifier: 10.3390/su122410318