Physical and Morphological Alteration of Sargassum-Derived Ultraporous Superactivated Hydrochar with Remarkable Cationic Dye Adsorption
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Algal chars exhibit a moderate to high carbon content (10-60%) and high ash levels; high ash is detrimental for fuel applications but advantageous for wastewater treatment because mineral components enhance cation-exchange capacity.
“Additionally, algal chars exhibit a moderate to high carbon content (10-60%) and high ash levels, which, while detrimental for fuel applications, can be advantageous for wastewater treatment due to the presence of mineral components that enhance cation-exchange capacity [10].”
From Algal-Based Carbonaceous Materials for Environmental Remediation: Advances in Wastewater Treatment, Carbon Sequestration, and Biofuel Applications (2025) · cites this paper as [10]
The resulting superactivated hydrochars demonstrated adsorption capacities for methylene blue up to 714.29 mg/g at 37°C.
“The resulting SAHs demonstrated remarkable adsorption capacities for MB, reaching up to 714.29 mg/g at 37 • C.”
From Algal-Based Carbonaceous Materials for Environmental Remediation: Advances in Wastewater Treatment, Carbon Sequestration, and Biofuel Applications (2025) · cites this paper as [10]
Key factors influencing adsorption of methylene blue on superactivated hydrochars included solution pH, contact time, and temperature.
“This study identified key factors influencing adsorption, including solution pH, contact time, and temperature.”
From Algal-Based Carbonaceous Materials for Environmental Remediation: Advances in Wastewater Treatment, Carbon Sequestration, and Biofuel Applications (2025) · cites this paper as [10]
Chambers et al. (2024) produced ultraporous superactivated hydrochar from Sargassum using HTC followed by KOH activation; activation enhanced the surface area up to 1404 m2/g.
“Chambers et al., 2024 [10], examined the production of ultraporous superactivated hydrochar (SAH) from Sargassum using HTC followed by KOH activation.The HTC process was conducted at temperatures of 180, 220, and 260 • C, while activation enhanced the surface area, reaching up to 1404 m 2 /g.”
From Algal-Based Carbonaceous Materials for Environmental Remediation: Advances in Wastewater Treatment, Carbon Sequestration, and Biofuel Applications (2025) · cites this paper as [10]
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- Authors
- Chambers, C., Saha, S., Grimes, S., Calhoun, J., & Reza, M. T.
- Affiliations
- Florida Institute of Technology (US)
- Corresponding author
- Reza, M. Toufiq
- Venue
- Biomass Conversion and Biorefinery
- Published
- 2023-05-16
- Volume
- 14
- Issue
- 22
- Pages
- 29131-29144
- ISSN
- 2190-6815 (ISSN-L)
- 2190-6823
- OpenAlex
- W4376646770
- Semantic Scholar
- 5d46b2676a75741db4fe0388ca57461a15cc7b6f
- Cited by
- 14
- References
- 68
- Citations by year
- 2026: 6 · 2025: 4 · 2024: 3 · 2023: 1
- FWCI
- 1.12
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- Biomass Conversion and Biorefinery (publishedVersion)
- Funders
- U.S. Environmental Protection Agency (2D20522)
- Topics
- Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
- Physical Sciences › Engineering › Mechanical Engineering › Carbon Dioxide Capture Technologies
- Physical Sciences › Chemistry › Spectroscopy › Adsorption, diffusion, and thermodynamic properties of materials
- Keywords
- seaweed valorization, hydrochar, hydrothermal carbonization, KOH activation, cationic dye adsorption, methylene blue, methyl orange, adsorption isotherms, adsorption kinetics, adsorption thermodynamics, oxygen-containing functional groups, pore filling, electrostatic attraction, Langmuir isotherm, Elovich model, waste valorization
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