Fabrication of Ag3PO4/polyaniline-activated biochar photocatalyst for efficient triclosan degradation process and toxicity assessment

Ma, Yujing; Zhang, Tianliang; Pan, Zhu; Cai, Haitao; Jin, Yang; Gao, Kaige; Li, Jun

doi:10.1016/j.scitotenv.2022.153453

Cited by 32 publications

(7 citation statements)

References 68 publications

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“…To determine the catalyst structure in greater detail about highly dispersed Ru, Raman and IR spectroscopy were utilized. As depicted in Figure b, the characteristic peaks of PA–PANI are located at 1152 and 1240 cm –1 , which correspond to the deformation of the C–H bending of benzenoid and the C–H bending stretching of benzenoid. , Additionally, the peaks at 1292 and 1400 cm –1 are due to the C–N stretching of aromatic amines and the CN stretching of the quinoid ring. , The peak at 1537 cm –1 is caused by the CC expansion vibration in the quinonoid ring . These properties are also found in the corresponding peaks on PANI supports (Figure S2a).…”

Section: Results and Discussionmentioning

confidence: 88%

“…As depicted in Figure 2b, the characteristic peaks of PA−PANI are located at 1152 and 1240 cm −1 , which correspond to the deformation of the C−H bending of benzenoid and the C−H bending stretching of benzenoid. 21,22 Additionally, the peaks at 1292 and 1400 cm −1 are due to the C−N stretching of aromatic amines and the C�N stretching of the quinoid ring. 23,24 The peak at 1537 cm −1 is caused by the C�C expansion vibration in the quinonoid ring.…”

Section: Resultsmentioning

confidence: 99%

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Phytic Acid-Modulated Ru Catalyzes Regioselective Deuteration of 1,6-Hexamethylenediamine

Shao,

Wang,

Jiang

et al. 2023

ACS Catal.

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Section: Results and Discussionmentioning

confidence: 88%

Section: Resultsmentioning

confidence: 99%

Phytic Acid-Modulated Ru Catalyzes Regioselective Deuteration of 1,6-Hexamethylenediamine

Shao,

Wang,

Jiang

et al. 2023

ACS Catal.

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“…The final Biochar/PANI/Ag3PO4 was employed as photocatalyst to degrade triclosan. 84 The rationale for making this ternary composite lies in the synergy between (i) the excellent photocatalytic properties of Ag3PO4, (ii) the electronic conductivity of biochar that favours rapid transfer of photogenerated electron (e−) of Ag3PO4, and (iii) PANI, a promoter of the transfer and separation of photogenerated hole-electron pairs (h + -e − ), as well as an inhibitor of the photo-corrosion and oxidation of Ag3PO4. The composite catalysed the degradation of triclosan at a rate of 85%, within 10 min.…”

Section: Surface-modified Biochar With Nitrogen-based Compoundsmentioning

confidence: 99%

Surface Treatment of Biochar: Methods, Surface Analysis and Potential Applications. A Comprehensive Review

Gęca¹,

Khalil²,

Bhakta³

et al. 2023

Preprint

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In the recent years, biochar has emerged as a remarkable biosourced material for addressing global environmental, agricultural, biomedical, and energy challenges. However, the performances of biochar rest in part on finely tuning its surface chemical properties, intended to obtain specific functionalities. In this review, we tackle surface treatment of biochar with silane and other coupling agents such as diazonium salts, titatantes, ionic/non-ionic surfactants, as well as nitrogen-containing (macro)molecules. We summarize the recent progress achieved mostly in the last five years, and correlate the nature and extent of functionalization to eye catchy end applications of the surface engineered biochar.

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“…As a typical hydrophobic organic compound, TCS exhibits further environmental persistence, based on its high octanol water partition coefficient (log Know = 4.8) and long half-life [ 12 , 13 ]. Compared to TCS, a variety of conversion products of TCS are more persistent, due to its higher hydrophobicity and lower potential for photodegradation, such as chlorophenols, methyl-triclosan, and dioxins [ 14 ]. Research found evidence that an abundance of TCS and its degradation products exist in the environment, especially in the aquatic environment [ 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Molecular Toxicity Mechanism Induced by the Antibacterial Agent Triclosan in Freshwater Euglena gracilis Based on the Transcriptome

Zhang

Yang

et al. 2023

Toxics

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Triclosan (TCS), a commonly used antibacterial preservative, has been demonstrated to have high toxicological potential and adversely affects the water bodies. Since algae are one of the most significant primary producers on the planet, understanding the toxicological processes of TCS is critical for determining its risk in aquatic ecosystems and managing the water environment. The physiological and transcriptome changes in Euglena gracilis were studied in this study after 7 days of TCS treatment. A distinct inhibition ratio for the photosynthetic pigment content in E. gracilis was observed from 2.64% to 37.42% at 0.3–1.2 mg/L, with TCS inhibiting photosynthesis and growth of the algae by up to 38.62%. Superoxide dismutase and glutathione reductase significantly changed after exposure to TCS, compared to the control, indicating that the cellular antioxidant defense responses were induced. Based on transcriptomics, the differentially expressed genes were mainly enriched in biological processes involved in metabolism pathways and microbial metabolism in diverse environments. Integrating transcriptomics and biochemical indicators found that changed reactive oxygen species and antioxidant enzyme activities stimulating algal cell damage and the inhibition of metabolic pathways controlled by the down-regulation of differentially expressed genes were the main toxic mechanisms of TCS exposure to E. gracilis. These findings establish the groundwork for future research into the molecular toxicity to microalgae induced by aquatic pollutants, as well as provide fundamental data and recommendations for TCS ecological risk assessment.

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Fabrication of Ag3PO4/polyaniline-activated biochar photocatalyst for efficient triclosan degradation process and toxicity assessment

Cited by 32 publications

References 68 publications

Phytic Acid-Modulated Ru Catalyzes Regioselective Deuteration of 1,6-Hexamethylenediamine

Phytic Acid-Modulated Ru Catalyzes Regioselective Deuteration of 1,6-Hexamethylenediamine

Surface Treatment of Biochar: Methods, Surface Analysis and Potential Applications. A Comprehensive Review

Molecular Toxicity Mechanism Induced by the Antibacterial Agent Triclosan in Freshwater Euglena gracilis Based on the Transcriptome

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