Renewable Material-derived Biochars for the Efficient Removal of 2,4-Dichlorophen from Aqueous Solution: Adsorption/Desorption Mechanisms

Cui, Liqiang; Chen, Tian-Ming; Quan, Guixiang; Xiao, Bo; Ma, Yurong; Pan, Mei; Liu, Yang; Liu, Benzhi; Yin, Chuntao; Yan, Jinlong; Han, Xiaobing; Ding, Cheng; Cui, Jun; Bian, Mengjie; Hussain, Qaiser

doi:10.15376/biores.12.3.4912-4925

Cited by 8 publications

(5 citation statements)

References 36 publications

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“…The XPS data also show functional groups of biochar C1s, i.e., C-C (284.8 eV), C-O (286.1 eV), and C=O (287.0 eV), and four peaks for the O1s were C=O at 532.5 eV, O-H at 530.3 eV, O-C=O at 532.8 eV, and C-OO at 533.8 eV. The above data support the fact that biochar contains abundant oxygen-containing functional groups, as shown by our research group in the past [50]. Sanchez-Hernandez [51] showed that biochar can inactivate metabolites of organophosphorus pesticides, which they mainly attributed to the abundant functional groups in biochar.…”

Section: Functional-group Characteristics Of Raw Biochar and Soilsupporting

confidence: 87%

Biochar and Cd Alter the Degradation and Transport of Kasugamycin in Soil and Spinach

Cui,

Ma,

Quan

et al. 2023

Agriculture

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Biochar has been widely studied to reduce multiple contaminant sources in one matrix (e.g., several heavy metals in soils), yet less attention has been paid to accelerating pesticide degradation while in the presence of any heavy metals, such as when kasugamycin (KSM) and cadmium (Cd) are both present in soil. While KSM has low toxicity compared to other pesticides, it can be a potential health risk when applied to vegetable crops, especially when KSM is used or overapplied to achieve rapid reductions in insect and disease pressure. The degradation behavior of KSM (2 kg ha−1) in the presence of Cd (20 mg kg−1) and biochar (5% by wt.) when growing spinach (Spinacia oleracea) was studied. The biochar increased spinach shoot and root biomass by 51.0–54.8% and 24.4–39.0%, respectively, compared to the KSM treatment only. Compared to the treatments that did not receive biochar, the biochar application increased the KSM degradation in the soil by 8.4–68.4% and, subsequently, less KSM was absorbed by the spinach roots (18.0–48.4%) and shoots (33.0–33.2%). The KSM degradation rate, as a function of soil depth, was enhanced in the presence of Cd. The biochar also effectively decreased the KSM concentration with soil depth, reducing downward KSM migration. The KSM degradation, increased by the biochar, led to smaller organic moieties and some macromolecular organic phases. In soils that are contaminated with Cd and where vegetables are raised, biochar may be used as an environmentally friendly proponent for increasing KSM degradation, reducing KSM downward transport and, thus, protecting environmental and human health.

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Section: Functional-group Characteristics Of Raw Biochar and Soilsupporting

confidence: 87%

Biochar and Cd Alter the Degradation and Transport of Kasugamycin in Soil and Spinach

Cui,

Ma,

Quan

et al. 2023

Agriculture

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“…The 2,4,6-TCP solution and biochars were mixed in a 100 mL glass flask, and sealed with tape and shaken at 180 rpm for 2 h in a water bath at 25 °C, 35 °C, and 45 °C. The background electrolyte of the mixed solution was 0.01 mol L −1 NaNO 3 , and the pH was adjusted with 0.1 M NaOH or HCl 22 . After reaching the equilibrium during the sorption experiment, the solution was filtered through 0.22 μm nylon membrane.…”

Section: Methodsmentioning

confidence: 99%

Changes in surface characteristics and adsorption properties of 2,4,6-trichlorophenol following Fenton-like aging of biochar

Cui

Fan

Sun

et al. 2021

Sci Rep

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Fenton-like system formed in a natural soil environment deemed to be significant in the aging process of biochar. Aged biochars have distinct physico-chemical and surface properties compared to non-aged biochar. The aged biochar proved to be useful soil amendment due to its improved elements contents and surface properties. The biochar aging process resulted in increased surface area and pore volume, as well as carbon and oxygen-containing functional groups (such as C=O, –COOH, O–C=O etc.) on its surface, which were also associated with the adsorption behavior of 2,4,6-trichlorophenol (2,4,6-TCP). The biochar aging increased the adsorption capacity of 2,4,6-TCP, which was maximum at pH 3.0. The 2,4,6-TCP adsorption capacity of aged-bush biochar (ABB) and aged-peanut shell biochar (APB) was increased by 1.0–11.0% and 7.4–38.8%, respectively compared with bush biochar (BB) and peanut shell biochar (PB) at the same initial concentration of 2,4,6-TCP. All biochars had similar 2,4,6-TCP desorption rates ranging from 33.2 to 73.3% at different sorption temperatures and times. The desorbed components were mainly 2,4,6-TCP and other degraded components, which were low in concentration with small molecule substance. The results indicated that the aged-biochar could be effective for the long-term remediation of naturally organic polluted soils.

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“…The column temperature was initially 80 °C for 1 min, and then it increased to 350 °C at a rate of 10 °C/min. The carrier gas was helium at a flow rate of 1 mL/min, and the injection volume was 1 µL; the injector was operated in the split mode after sample injection (Cui et al 2017a).…”

Section: Characterization Of the Biochar Extract Solutionsmentioning

confidence: 99%

Biochar extract compounds alter germination and growth of crop seed

Quan

Yan

et al. 2022

BioRes

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Positive or negative plant growth effects due to soluble organic biochar compounds are not well understood. Increasing quantities (0 g, 0.5 g, 2.5 g, and 5 g) of four different biochars were extracted with 0.1 M HCl, which were separated and marked as W, X, Y, and Z. Corn and rice seeds were treated with biochar extract solution. The rice straw Y and Z solutions positively affected corn germination, while the cotton straw Z solution negatively affected it. When differences were present, the biochar extract solutions always caused reduction in rice seed germination. The rice straw and cotton straw solutions tended to increase, the wheat straw Y and Z solutions tended to decrease, while little differences were evident in terms of the effects of the Spartina alterniflora solution on corn bud and root length when compared to the control. Increasing the biochar solution extract treatments reduced the rice bud and root length when compared to the control, especially with solution Z. Organic compounds, e.g., triethyl phosphate, 2,4-bisphenol, were present in the solutions, which likely promoted seed growth at lower concentrations. Determining the presence of biochar organic moieties helped with designing biochars for enhanced seed germination, growth, and crop productivity.

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Renewable Material-derived Biochars for the Efficient Removal of 2,4-Dichlorophen from Aqueous Solution: Adsorption/Desorption Mechanisms

Cited by 8 publications

References 36 publications

Biochar and Cd Alter the Degradation and Transport of Kasugamycin in Soil and Spinach

Biochar and Cd Alter the Degradation and Transport of Kasugamycin in Soil and Spinach

Changes in surface characteristics and adsorption properties of 2,4,6-trichlorophenol following Fenton-like aging of biochar

Biochar extract compounds alter germination and growth of crop seed

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