Efficient adsorption removal of tetracycline by layered carbon particles prepared from seaweed biomass

Li, Guoting; Guo, Yonghua; Zhao, Weigao

doi:10.1002/ep.12437

Cited by 15 publications

(4 citation statements)

References 37 publications

(38 reference statements)

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“…As mentioned by Li et al (2017a), the biosorption potential of Sargassum-derived products was extensively studied and well demonstrated for metals, but data are scarce for organic compounds. Amongst the few studies, most of them used non-living Sargassum sp.…”

Section: Micropollutant Sorption On To Sargassum Sp Thallimentioning

confidence: 99%

Sargassum contamination and consequences for downstream uses: a review

et al. 2020

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Sargassum spp. are brown algae present in the tropical and subtropical waters of the world's oceans. Benthic or pelagic, Sargassum spp. represent substantial amounts of biomass when drifted and massive beaching events also named "golden tides" are challenging for environmental and tourism managers. The Sargassum spp. biomass can be regarded as offering economic opportunities; however, micropollutant contamination counteracts this wealth. This review describes the contaminant uptake processes and the concentrations reached by various Sargassum species in regard to national and international norms for a variety of applications. Amongst the heavy metals, perhaps total arsenic content is the most salient: phytoaccumulation of arsenic is due to confusion in the phosphate transporter between arsenic and phosphate, thus leading Sargassum spp. to bioaccumulate arsenic actively. The levels reached could well give cause for concern across all potential applications, in particular for human and animal use. Similarly, there are concerns for the widespread applications or disposal of this biomass due to environmental impacts in the case of storage, landfill or composting. Organic micropollutants are too rarely studied to assert that there is global contamination. However, research studies focused on Sargassum spp. contamination confirmed environmental threats. But, without exhaustive analysis of routine algae contamination, the standard contamination level cannot be defined. Treating beach-cast or drifting Sargassum spp. as a waste is a Gordian knot, in that it involves investment, work and disposal surfaces, whilst not necessarily providing environmental and economic gains. However, Sargassum spp. are a raw material, a resource rich in a broad variety of constituents that could be processed for commercial applications or which could be used for production of energy. In this paper the authors review the diverse applications that can be considered and describe the relevant regulations and norms related to contaminants and effluents that need to be taken into account. However, if valorizing Sargassum spp. is currently valuable and promising, the quality of the raw material is a key starting point because fresh and sand-free algae are required: offshore gathering solutions need to be developed in order to limit Sargassum sp. contamination by pollutants from land so as to hinder algae decay.

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Section: Micropollutant Sorption On To Sargassum Sp Thallimentioning

confidence: 99%

Sargassum contamination and consequences for downstream uses: a review

et al. 2020

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“…However, most commercial ACs with high quality are less economical, which makes them limited in application. Therefore, various ACs have been prepared by biomass wastes such as coconut shell, [13] fruit peels, [14] phragmites australis, [15] seaweed, [16] tomato, [17] and so on, as biosorbents for pollutant removal. Nevertheless, biosorbents often require complex pretreatment of raw material, and need the addition of zinc chloride, potassium hydroxide, phosphoric acid, humic acid, or other chemicals in the activation step to create more pore structures.…”

Section: Introductionmentioning

confidence: 99%

Development of Resin Based Spherical Activated Carbon with High Performance Derived from Waste Ion‐Exchange Resin and Its High Effective Removal of Tetracycline

Li,

Chen,

et al. 2023

ChemistrySelect

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Industrial production brings billions of tons of solid waste every year, which not only leads to resource waste, but also causes threat to the environment. Improving solid waste resource utilization can better meet the needs of environmental protection and sustainable development. Herein, steam activation method were used to transform the waste ion‐exchange resin (IER) into resin based spherical activated carbons (RSACs) with high adsorption properties and mechanical strength to realize the efficient use of waste resources. The porous structures and mechanical strength of RSACs can be adjusted by changing the reaction conditions including activation temperature, activation time and steam input. The largest specific surface area is up to 2047 m2/g with the pore volume of 1.56 cm3/g. The feasibility of utilizing RSACs to remove tetracycline (TC) from aqueous solution was evaluated, and the highest adsorption capacity is 701 mg/g. The pH variation shows some extent effect on the adsorption. The coexisting ions with higher valence state and concentration result in the decrease of the adsorption capacity to some extent. Additionally, the kinetics experimental data fit the pseudo‐second‐order model well, and the equilibrium data are more consistent with the Freundlich model. The adsorbent is promising in wastewater treatment.

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“…In our previous study, layered carbon particles synthesized by using concentrated acid to carbonize seaweed Sargassum sp. have shown excellent adsorptive capability despite of the high cost for the carbon particle preparation [24,25]. Meanwhile, pharmaceutical and personal care products (PPCPs) have attracted wide attention in recent studies [26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Comparison for adsorption of tetracycline and cefradine using biochar derived from seaweed Sargassum sp.

Song¹,

Guo²,

Li³

et al. 2019

Desalination and Water Treatment

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Surface properties of biochars derived from seaweed Sargassum sp. were observed as obvious difference to those from agricultural wastes. In this study, the adsorptive removal of two types of antibiotics, tetracycline (TC) and cefradine (CF), on the biochar were compared and discussed herein. The rod-like tissues of the raw seaweed swelled to be spindle-like at pyrolytic temperature above 400°C. The carbon content was increased from 22.9% of the raw seaweed to 37.2% of the biocharpyrolyzed at 600°C (BC600), while the oxygen content was just increased slightly from 24.7% to 27.8%. The uptake of both TC and CF on the biochar was found to be pH-dependent. The maximum adsorption capacities of TC and CF calculated from the Langmuir model were 128.1 and 61.7 mg/g, respectively, while more CF molecules were adsorbed on biochar at a low adsorbate concentration. Both the Coulombic interaction and π-π electron-donor-acceptor interaction between seaweed biochar and CF/TC molecules played the predominant roles during the adsorption process. The experimental data was well fitted by the pseudo-second-order kinetics model, indicating a possible chemisorption process to some extent. Isotherm result implied that both surface adsorption and partitioning contributed to the uptake of TC and CF onto BC600.

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Efficient adsorption removal of tetracycline by layered carbon particles prepared from seaweed biomass

Cited by 15 publications

References 37 publications

Sargassum contamination and consequences for downstream uses: a review

Sargassum contamination and consequences for downstream uses: a review

Development of Resin Based Spherical Activated Carbon with High Performance Derived from Waste Ion‐Exchange Resin and Its High Effective Removal of Tetracycline

Comparison for adsorption of tetracycline and cefradine using biochar derived from seaweed Sargassum sp.

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