Sulfur-doped zero-valent iron supported on biochar for tetracycline adsorption and removal

Yang, Meng; Chen, Xu; Ai, Dan; Wei, Taiqing; Zhang, Fan; Wang, Bo

doi:10.1016/j.jclepro.2022.134769

Cited by 53 publications

(3 citation statements)

References 53 publications

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“…In addition, the adsorption gradually stagnated as the reaction continued, and YS-SiO 2 @PDA nanospheres could achieve a removal efficiency of 94.1% toward TC after 1 h, which was comparable to the recently reported adsorbents for the adsorption of TC. [53][54][55] The adsorption process of YS-SiO 2 @PDA nanospheres was fitted with two kinetic models, and it was more consistent with the pseudosecond-order kinetic model (R 2 = 0.9604), indicating that the removal of TC by YS-SiO 2 @PDA nanospheres was mainly through chemisorption.…”

Section: Adsorption Performance Of Tetracycline By Ys-sio 2 @Pda Nano...mentioning

confidence: 60%

Porous polydopamine nanospheres with yolk shell-like structure to effectively remove methylene blue, bisphenol A, and tetracycline from wastewaters

et al. 2023

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Section: Adsorption Performance Of Tetracycline By Ys-sio 2 @Pda Nano...mentioning

confidence: 60%

Porous polydopamine nanospheres with yolk shell-like structure to effectively remove methylene blue, bisphenol A, and tetracycline from wastewaters

et al. 2023

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“…Sun et al (2023) demonstrated that the adsorption capacity of TC reached up to 405.01 mg/g using walnut shell-derived biochar with a 0.3 wt% embedded iron. Meng et al (2022) found a maximum TC adsorption of 243.76 mg/g for sulfur with zero-valent iron powder at a mass ratio of 1:1 and pH of 4.41. Liu et al (2023) developed β-cyclodextrin-modi ed hydrolyzed polyacrylonitrile composite membranes, exhibiting a TC adsorption capacity of 85.1 mg/g at a TC concentration of 100 mg/L.…”

Section: Introductionmentioning

confidence: 95%

Soybean residues assisted g-C3N4/SiC photocatalyst prepared from waste materials: Synthesis, characterization, and application of tetracycline photodegradation irradiated with simulated sunlight

Dai,

Chou,

Hung

et al. 2024

Preprint

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This study employed the reproduced carbon black, waste silicon materials, and soybean residue to develop an environmentally friendly O-gC3N4/SiC composite photocatalyst and evaluated the corresponding photodegradation performance of tetracycline (TC). Initially, the reproduced carbon black was soaked in nitric acid to eliminate impurities, which resulted in the lowest ash content (7.86%). Soybean residue is a vital replacement for melamine during the preparation of graphitic carbon nitride. The characteristics of the synthesized SiC, O-gC3N4, and O-gC3N4/SiC photocatalysts were verified through TEM, XRD, and Fourier-transform infrared spectroscopy. The characteristic wavelength of the O-gC3N4/SiC photocatalysts was 523–541 nm, indicating that visible light triggers the photocatalytic reaction. The composites of soybean residue and SiC enhanced TC degradation, resulting in the best degradation rate of 89.5% with an initial first-order reaction rate constant of 2.01 × 10− 2 1/min for O0.10M0.90SC5 photocatalysts. Free radical trapping experiments determined the electron holes (h+) and OH· as the primary free radicals responsible for TC degradation, whereas O2−· played a relatively minor role. A photodegradation mechanism for O-gC3N4/SiC was also proposed. The prepared O-gC3N4/SiC photocatalysts are promising candidates for sustainable applications.

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“…The synthesis of mannan-grafted chitosan (CSMan-gCNMZnO0.3-1) adsorbent, enhanced with carbon nitride graphite and zinc oxide, resulted in a material with a maximum TC adsorption capacity of 164.627 mg/ g. 30 Biochar-loaded sulfur-doped zero-valent iron (BM-S/ ZVI@BC), offers an adsorption capacity of 505.68 mg/g for TC, achieved by controlling temperature and material ratios. 31 Bismuth halide-reduced graphene oxide (BiOX/ RGO) exhibits a 2D/2D heterostructure, substantially improving material properties under visible light irradiation, achieving 2-6 times better performance. 32 Montmorillonite, capable of capturing TC between layers, has been enhanced through Ga and Mg loading, doubling its performance.…”

Section: Introductionmentioning

confidence: 99%

Adsorption behaviors and mechanisms of porous hypercrosslinked polymers with adjustable functional groups toward doxycycline hydrochloride from water

Guo,

Chen,

et al. 2023

J of Applied Polymer Sci

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Imino hypercrosslinked polymers (NH‐HCPs), amino hypercrosslinked polymers (NH2‐HCPs), and carboxyl hypercrosslinked polymers (COOH‐HCPs) were synthesized through cross‐linking and Friedel‐Crafts reactions to serve as highly efficient adsorbents for doxycycline hydrochloride (DOX) in water. These polymers, NH‐HCPs, NH2‐HCPs, and COOH‐HCPs, exhibited specific surface areas measuring 450, 267.576, and 94.39 m2/g, respectively. The adsorption kinetics of DOX onto these polymers were consistent with the pseudo‐second‐order model, while the adsorption isotherms followed the Langmuir model (NH‐HCPs) and Freundlich model (NH2‐HCPs and COOH‐HCPs), respectively. The maximum DOX adsorption capacities for NH‐HCPs, NH2‐HCPs, and COOH‐HCPs were 166.82, 132.43, and 72.07 mg/g, respectively. Simulation results indicated that COOH‐HCPs exhibited the strongest adsorption capability due to a substantial presence of oxygen and nitrogen groups on its surface, enabling the formation of hydrogen bonds with DOX. However, its actual adsorption capacity was the lowest among the polymers, indicating that structural adjustments played a more significant role in improving adsorption performance compared to functional adjustments. Adsorption experiments conducted with NH‐HCPs and NH2‐HCPs further supported this hypothesis. The primary DOX adsorption mechanism of NH‐HCPs, NH2‐HCPs, and COOH‐HCPs involved the H‐bonding of oxygen and nitrogen functional groups, along with other mechanisms such as π‐π conjugated effects, pore‐filling effects, electrostatic interactions, and acid–base interactions. Overall, this study demonstrates the effectiveness of NH‐HCPs, NH2‐HCPs, and COOH‐HCPs in DOX removal from water, highlighting the significant influence of structural adjustments on adsorption performance.

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Sulfur-doped zero-valent iron supported on biochar for tetracycline adsorption and removal

Cited by 53 publications

References 53 publications

Porous polydopamine nanospheres with yolk shell-like structure to effectively remove methylene blue, bisphenol A, and tetracycline from wastewaters

Porous polydopamine nanospheres with yolk shell-like structure to effectively remove methylene blue, bisphenol A, and tetracycline from wastewaters

Soybean residues assisted g-C3N4/SiC photocatalyst prepared from waste materials: Synthesis, characterization, and application of tetracycline photodegradation irradiated with simulated sunlight

Adsorption behaviors and mechanisms of porous hypercrosslinked polymers with adjustable functional groups toward doxycycline hydrochloride from water

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