Mechanochemical modified nitrogen-rich biochar derived from shrimp shell: Dominant mechanism in pyridinic-N for aquatic methylene blue removal

Wang, Ming; Yan, Jinlong; Xu, Yumeng; Zhou, Xia; Diao, Yusen; Wang, Hui; Bian, Jiahao; Liu, Cheng; Quan, Guixiang

doi:10.1016/j.jenvman.2022.117049

Cited by 15 publications

(2 citation statements)

References 52 publications

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“…42 For Figure 5d, the spectra of N 1s exhibit four kinds of peaks ascribed to pyridinic-N (397.8 eV), pyrrolic-N (399.4 eV), quaternary-N (400.7 eV), and N-oxides (403.1 eV). 43,44 For the S 2p spectrum as displayed in Figure 5e, five peaks are located at 163.9, 165, 167.7, 168.2, and 169.3 eV. The peaks at 163.9 and 165 eV can be ascribed to S 2p 3/2 and S 2p 1/2 of thiophene-S (C−S−C), respectively, due to their spin−orbit splitting.…”

Section: ■ Results and Discussionmentioning

confidence: 98%

ZIF-67 and Biomass-Derived N, S-Codoped Activated Carbon Composite Derivative for High-Effective Removal of Hydroquinone from Water

Yang,

Wang,

et al. 2024

ACS Appl. Mater. Interfaces

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Hydroquinone (HQ) in wastewater is of great concern, as it is harmful to human health and threatens the ecological environment. However, the existing adsorbents have low adsorption capacity for HQ. To improve the removal of HQ, N,Scodoped activated carbon-ZIF-67 (NSAC-ZIF-67@C) was synthesized in this study by in situ growth of ZIF-67 on N,S-codoped activated carbon (NSAC) and carbonization. The influence of pH, contact time, and initial concentration on the adsorption behaviors of NSAC-ZIF-67@C on HQ were investigated. Owing to the synergistic effect of abundant active sites and well-developed pore structure, the NSAC-ZIF-67@C achieved a prominent adsorption capacity of 962 mg•g −1 and can still retain high adsorption performance after 5 cycles for HQ, which is superior to that of reported other adsorbents. HQ adsorption follows the pseudosecond-order kinetics model (R 2 = 0.99999) and the Freundlich isotherm model. X-ray photoelectron spectroscopy (XPS) analysis before and after adsorption as well as density functional theory (DFT) calculation results showed that pyridinic-N-termini were conducive to the π−π interactions and hydrogen-bonding interactions. Therefore, the adsorption mechanisms of NSAC-ZIF-67@C on HQ involve pore filling, electrostatic attraction, π−π interaction, and hydrogen bonding. This study is expected to provide a reference for designing highly effective adsorbents for wastewater treatment.

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Section: ■ Results and Discussionmentioning

confidence: 98%

ZIF-67 and Biomass-Derived N, S-Codoped Activated Carbon Composite Derivative for High-Effective Removal of Hydroquinone from Water

Yang,

Wang,

et al. 2024

ACS Appl. Mater. Interfaces

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“…However, these properties of biochar are governed by two main factors: (i) conditions for pyrolysis, including residence duration, heating rate, and temperature [15,16], and (ii) the type of biomass used [17]. Biochars produced from the same biomass at various pyrolysis temperatures can have very different physical and chemical properties such as functional groups, cation-exchange capacity, porosity, and surface area [18]. Though many studies have addressed the influence of pyrolysis temperature on biochar properties, the optimal temperature for pyrolysis to produce biochar is a topic of debate.…”

Section: Introductionmentioning

confidence: 99%

Sorption-Desorption of Phosphorus on Manure- and Plant-Derived Biochars at Different Pyrolysis Temperatures

Musa,

Khan,

Blankinship

et al. 2024

Sustainability

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Sustainable phosphorus (P) management is essential to preventing mineral fertilizer losses, reducing water pollution, and addressing eutrophication issues. Phosphorus sorption and mobility are strongly influenced by the properties of biochar, which are determined by pyrolysis temperature and type of feedstock. This understanding is crucial for optimizing biochar application for soil nutrient management. Therefore, a batch sorption-desorption experiment was conducted to examine P sorption-desorption in plant-based (parthenium, corn cobs) and manure-based (farmyard manure, poultry manure) biochars prepared at both 400 °C and 600 °C. Manure-based biochars demonstrated higher P sorption at 400 °C, with less sorption at 600 °C, while plant-based counterparts exhibited lower sorption capacities. Phosphorus desorption, on the other hand, increased at 600 °C, particularly in manure-based biochars. The scanning electron microscopy (SEM) and Fourier-transform infrared spectra (FTIR) analysis suggested that a lower pyrolysis temperature (400 °C) enhances P sorption due to higher specific surface area and different functional groups. Additionally, the manure-based biochars, which were enriched with calcium (Ca) and magnesium (Mg), contributed to increased P sorption. In summary, P sorption is enhanced by a lower carbonization (400 °C) temperature. Although manure-based biochars excel in retaining P, their effectiveness is limited to shorter durations. In contrast, plant-based biochars showcase a prolonged capacity for P retention.

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A review on the adsorption of volatile organic compounds by biomass-based porous carbon (BPC) and its mechanism

Yang,

Liang,

Sun

et al. 2024

Carbon Lett.

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Mechanochemical modified nitrogen-rich biochar derived from shrimp shell: Dominant mechanism in pyridinic-N for aquatic methylene blue removal

Cited by 15 publications

References 52 publications

ZIF-67 and Biomass-Derived N, S-Codoped Activated Carbon Composite Derivative for High-Effective Removal of Hydroquinone from Water

ZIF-67 and Biomass-Derived N, S-Codoped Activated Carbon Composite Derivative for High-Effective Removal of Hydroquinone from Water

Sorption-Desorption of Phosphorus on Manure- and Plant-Derived Biochars at Different Pyrolysis Temperatures

A review on the adsorption of volatile organic compounds by biomass-based porous carbon (BPC) and its mechanism

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