Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/161931
Title: Impacts of pyrolysis temperatures on physicochemical and structural properties of green waste derived biochars for adsorption of potentially toxic elements
Authors: Muhammad, Nisar
Ge, Liya
Chan, Wei Ping
Khan, Afsar
Nafees, Mohammad
Lisak, Grzegorz
Keywords: Engineering::Environmental engineering
Issue Date: 2022
Source: Muhammad, N., Ge, L., Chan, W. P., Khan, A., Nafees, M. & Lisak, G. (2022). Impacts of pyrolysis temperatures on physicochemical and structural properties of green waste derived biochars for adsorption of potentially toxic elements. Journal of Environmental Management, 317, 115385-. https://dx.doi.org/10.1016/j.jenvman.2022.115385
Journal: Journal of Environmental Management
Abstract: This study comparatively investigated the influence of changes in pyrolysis temperature on the physicochemical, structural, and adsorptive properties of biochars derived from a green waste (Cynodon dactylon L.). For this purpose, the biophysically dried green wastes were pyrolyzed at 400 °C, 600 °C, and 800 °C under the same pyrolysis conditions. The results revealed that the physicochemical and structural properties were varied, depending upon the pyrolysis temperatures. With the increase of pyrolysis temperature, the surface functional groups were escaped, the structure became more porous (pore volume of 0.089 ± 0.001), the metal oxides were remained consistent, and the biochars turned into more alkaline nature (pH of 11.9 ± 0.2). Furthermore, as referring to the adsorptive performance for potentially toxic elements, with experimental adsorption capacity of up to 33.7 mg g-1 and removal rate up to 96% for a multi-metals containing solution, the biochars pyrolyzed at high temperature (800 °C) was significantly (p < 0.05) higher than those pyrolyzed at low temperature (400 °C). According to the physicochemical and structural properties, and the adsorptive performances of the biochars, the optimal pyrolysis temperature was herein recommended to be 800 °C.
URI: https://hdl.handle.net/10356/161931
ISSN: 0301-4797
DOI: 10.1016/j.jenvman.2022.115385
Rights: © 2022 Elsevier Ltd. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:CEE Journal Articles
NEWRI Journal Articles

SCOPUSTM   
Citations 50

3
Updated on Nov 28, 2022

Web of ScienceTM
Citations 50

3
Updated on Nov 25, 2022

Page view(s)

13
Updated on Dec 3, 2022

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.