High-efficiency control of pesticide and heavy metal combined pollution in paddy soil using biochar/g-C3N4 photoresponsive soil remediation agent

Qie, Hantong; Ren, Meng; You, Chang; Cui, Xuedan; Tan, Xiao; Ning, Yuting; Li, Meng; Hou, Daibing; Lin, Aoxiang; Cui, Jun

doi:10.1016/j.cej.2022.139579

Cited by 31 publications

(6 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The XPS highresolution (C 1s and O 1s) spectra of SL, H-SL, N-SL, and K-SL biochar are provided in Figure 2 30 For the highresolution N 1s spectra, Figure S3 showed the characteristic peaks of pyridinic N (∼398.5 eV), pyrrolic N (∼399.6 eV), and graphite N (∼400.9 eV). 31 All sludge biochar contained the same functional groups, which was similar to the results confirmed by FTIR (Figure 2). However, different modification methods could lead to changes in the content of biochar functional groups.…”

Section: Resultssupporting

confidence: 87%

“…Meanwhile, the O 1s spectrum also covered three functional groups, O–CO (∼533.5 eV), C–O/C–OH (∼532.4 eV), and CO (∼531.4 eV) . For the high-resolution N 1s spectra, Figure S3 showed the characteristic peaks of pyridinic N (∼398.5 eV), pyrrolic N (∼399.6 eV), and graphite N (∼400.9 eV) . All sludge biochar contained the same functional groups, which was similar to the results confirmed by FTIR (Figure ).…”

Section: Resultssupporting

confidence: 83%

See 1 more Smart Citation

Enhanced Removal of Polyfluoroalkyl Substances by Simple Modified Biochar: Adsorption Performance and Theoretical Calculation

et al. 2023

Self Cite

View full text Add to dashboard Cite

To cope with the widespread polyfluoroalkyl substance (PFAS) pollution in the global aquatic environment, this study prepared an acid-modified biochar adsorbent derived from sludge with satisfactory performance. The theoretical maximum adsorption capacities of the adsorbent for perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) were determined to be 72.17 and 45.88 mg·g–1, respectively. The theoretical calculation of the adsorption of biochar surface functional groups with PFOS and PFOA was first performed in this study, and the mechanism of the adsorption process was inferred with a combination of experimental results and redundancy analysis. The adsorption mechanism is composed mainly of the following three aspects: (I) electrostatic interaction between the positively charged biochar and the deprotonated PFAS; (II) hydrogen bonding between anionic species of PFAS and functional groups; and (III) hydrophobic interaction between long-chain hydrophobic PFAS and biochar. Electrostatic interaction plays a major role in the three main adsorption mechanisms under acidic media. Meanwhile, different functional groups have different adsorption energies for PFAS, and CO has the highest adsorption energy. The findings in this work could provide great insights into the adsorption of PFAS on modified biochar as an environmentally friendly adsorbent to promote resource reuse, improve water quality, and ensure human health.

show abstract

Section: Resultssupporting

confidence: 87%

Section: Resultssupporting

confidence: 83%

Enhanced Removal of Polyfluoroalkyl Substances by Simple Modified Biochar: Adsorption Performance and Theoretical Calculation

et al. 2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…Most of the studies on biochar were focused on its adsorption behavior and removal of pesticides from the water bodies (Cao et al 2023;Eissa et al 2023). The effects of various biochar amendments on CP/ATZ contaminated different types of soils were examined for remediation purposes (Singh et al 2022b;Dong et al 2023;Liu et al 2023b;Qie et al 2023;Zhang et al 2023). The fate of CP/ ATZ in soil and the alteration in biological activities by biochar were also reported by different authors (Cheng et al 2023;.…”

Section: Introductionmentioning

confidence: 96%

Effect of biochar on soil microbial community, dissipation and uptake of chlorpyrifos and atrazine

Singh,

Yadav,

Pandey

et al. 2024

Biochar

View full text Add to dashboard Cite

For the application of biochar in restoring pesticide-contaminated soils and minimizing the risk associated with their uptake in plants, it is crucial to understand the biochar impact on soil biological activities and dissipation and accumulation of pesticides in plant and soil systems. In this study, the effect of Mentha-distilled waste-derived biochar was investigated on chlorpyrifos and atrazine contaminated sandy loam soil. The four application rates of atrazine (2, 4, 6, and 8 mg kg−1) and chlorpyrifos (2, 4, 6, and 12 mg kg−1) and a single application rate of biochar (4%) were used in this study. The degradation of pesticides, the diversity of the bacterial community, and enzymatic activities (alkaline phosphatase, dehydrogenase, arylsulfatase, phenol oxidase, urease activity and N-acetyl glucosaminidase) were examined in soil. The uptake of two pesticides and their effect on growth and stress parameters were also investigated in plants (A. paniculata). The dissipation of chlorpyrifos and atrazine followed simple first-order kinetics with a half-life of 6.6–74.6 and 21–145 days, respectively. The presence of deisopropyl atrazine desethyl atrazine (metabolites of atrazine) and 3,5,6-trichloro-2-pyridinol (a metabolite of chlorpyrifos) was observed in soil and plant tissues. Biochar application significantly (p = 0.001) enhanced the degradation rate of chlorpyrifos and atrazine leading to the lower half-life of chlorpyrifos and atrazine in soil. A significant reduction (p = 0.001) in the uptake of chlorpyrifos and atrazine and alteration in their binding affinity and uptake rate in plant tissues was observed in biochar treatments. The incorporation of biochar improved chlorpyrifos/atrazine degrader and plant growth-promoting bacterial genera such as Balneimonas, Kaistobacter, Rubrobacter, Ammoniphilus, and Bacillus. The upregulation of functional genes associated with nucleotide, energy, carbohydrate, amino acid metabolism, xenobiotic biodegradation, and metabolism: atrazine degradation was observed in biochar treatments. The biochar amendments significantly (p = 0.001) reduced the plant’s uptake velocity (Vmax) and affinity (Km) of chlorpyrifos and atrazine. These results delineated that Mentha-distilled waste-derived biochar can potentially remediate chlorpyrifos and atrazine contaminated soils and ensure the safety of plants for consumption. Graphical Abstract

show abstract

“…7,8 At present, many researchers have carried out a series of modication works on g-C 3 N 4 , [9][10][11] such as microstructure control, heterojunction loading/construction, element doping, etc. 12,13 Dai et al prepared g-C 3 N 4 /Ag 3 VO 4 composite materials containing Ag nanoparticles using chemical deposition method, and tested the photocatalytic degradation effect of MB under visible light. The results showed that the optimal photocatalytic performance was achieved when the ratio of Ag 3 VO 4 to g-C 3 N 4 was 5 : 2.…”

Section: Introductionmentioning

confidence: 99%

Intense interaction between biochar/g-C₃N₄ promotes the photocatalytic performance of heterojunction catalysts

Ma,

Sun,

Zhang

et al. 2024

RSC Adv.

View full text Add to dashboard Cite

show abstract

High-efficiency control of pesticide and heavy metal combined pollution in paddy soil using biochar/g-C3N4 photoresponsive soil remediation agent

Cited by 31 publications

References 66 publications

Enhanced Removal of Polyfluoroalkyl Substances by Simple Modified Biochar: Adsorption Performance and Theoretical Calculation

Enhanced Removal of Polyfluoroalkyl Substances by Simple Modified Biochar: Adsorption Performance and Theoretical Calculation

Effect of biochar on soil microbial community, dissipation and uptake of chlorpyrifos and atrazine

Intense interaction between biochar/g-C₃N₄ promotes the photocatalytic performance of heterojunction catalysts

Contact Info

Product

Resources

About

High-efficiency control of pesticide and heavy metal combined pollution in paddy soil using biochar/g-C3N4 photoresponsive soil remediation agent

Cited by 31 publications

References 66 publications

Enhanced Removal of Polyfluoroalkyl Substances by Simple Modified Biochar: Adsorption Performance and Theoretical Calculation

Enhanced Removal of Polyfluoroalkyl Substances by Simple Modified Biochar: Adsorption Performance and Theoretical Calculation

Effect of biochar on soil microbial community, dissipation and uptake of chlorpyrifos and atrazine

Intense interaction between biochar/g-C3N4 promotes the photocatalytic performance of heterojunction catalysts

Contact Info

Product

Resources

About

Intense interaction between biochar/g-C₃N₄ promotes the photocatalytic performance of heterojunction catalysts