Tetracycline removal via adsorption and metal-free catalysis with 3D macroscopic N-doped porous carbon nanosheets: Non-radical mechanism and degradation pathway

Shen, Yaqian; Zhu, Konglin; He, Dongdong; Huang, Jin; He, Hongmei; Lei, Lele; Chen, Wenjin

doi:10.1016/j.jes.2021.04.014

Cited by 40 publications

(5 citation statements)

References 76 publications

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“…Although the introduction of N‐rGO did not improve the reaction rate (if compared to the reaction only using PSM), the complete conversion of the organics into water and CO 2 was observed, revealing the excellent catalytic performance of these materials. In the recent past, melamine was successfully employed for the synthesis of 3D macroscopic N ‐doped porous carbonaceous nanosheets (NPCN) [38] . With this material, tetracycline (TC) was removed up to 96 % after the addition of persulphate as an oxidizing agent.…”

Section: Opportunities In Thermocatalysismentioning

confidence: 99%

“…In the recent past, melamine was successfully employed for the synthesis of 3D macroscopic N-doped porous carbonaceous nanosheets (NPCN). [38] With this material, tetracycline (TC) was removed up to 96 % after the addition of persulphate as an oxidizing agent. No less significant, NPCN proved its stability in 4 subsequent recycles, removing up to 80 % of TC, thereby demonstrating that the catalytic efficiency was not altered over time by the reaction environment during the recycling tests and by the washing/restoring procedures.…”

Section: N-doped Carbonaceous Materialsmentioning

confidence: 99%

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Metal‐Free Carbonaceous Catalytic Materials: Biomass Feedstocks for a Greener Future

2023

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Section: Opportunities In Thermocatalysismentioning

confidence: 99%

Section: N-doped Carbonaceous Materialsmentioning

confidence: 99%

Metal‐Free Carbonaceous Catalytic Materials: Biomass Feedstocks for a Greener Future

2023

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“…The intermediate products of TC degradation were analyzed by LC-MS to further investigate the degradation mechanism of the BM0.5%/PS/Vis system, and two possible TC degradation pathways were finally obtained (Figure 9). In pathway I, TC formed intermediate P1 (m/z = 460) through hydroxylation first, [53] followed by N-methyl demethylation, and the amide and hydroxyl groups were lost, resulting in the intermediate P2 (m/z = 389). [54] P2 underwent C─N bond cleavage, removal of hydroxyl, methyl groups and other processes, and then P3 was obtained (m/z = 328), [55] followed by cyclization to obtain P4 (m/z = 192).…”

Section: Activity Performance Analysismentioning

confidence: 99%

Spherical Bi₄O₅I₂/MoS₂ QDs Nanocomposites Activate Persulfate to Degrade Tetracycline Under Visible Light

Zhang,

Huang,

Zheng

et al. 2023

Advanced Sustainable Systems

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Photocatalytic activation of persulfate is considered to be a promising purification technology. In this study, a novel nanospherical composite material is synthesized by loading MoS2 Quantum Dots on Bi4O5I2. MoS2 Quantum Dots enhance the activity of the composite material and separation efficiency of electrons and holes. Meanwhile the composite material demonstrates a strong photocurrent response by optoelectronic analysis. In addition, the light absorption range is further expanded. Based on the improvement of photoelectric properties and light absorption performance, the BM0.5%/PS/Vis system exhibits the most excellent performance with a degradation rate of 69.7% for tetracycline within 60 min. The degradation mechanism is verified through free radical capture experiments, the radicals involve in degradation are ·OH, ·SO4−, ·O2− and 1O2. The possible degradation pathway of tetracycline is proposed by liquid chromatography‐mass spectrometry (LC‐MS). This work is expected to provide a research direction for the application of modified bismuth halide in PS activation.

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“…Interestingly, toroidal structures of tetracyclines were related to several readily ionizable functional and electron-rich groups (e.g. dimethylphenol groups and amino groups) that were susceptible to attack by reactive agents (Shen et al 2022).…”

Section: Photocatalytic Mechanismmentioning

confidence: 99%

Novel 2D photocatalyst of copper-doped carbon quantum dot CD(Cu) loaded with ultrathin Ni-MOL for degradation of tetracycline

et al. 2022

Water Science and Technology

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Broadening the light absorption range and suppressing the carrier complexation are the two keys to enhance the photocatalytic activity. In this work, a novel two-dimensional (2D) photocatalyst was successfully prepared by modified hydrothermal method and applied in tetracycline (TC) degradation. The degradation rate of CD(Cu)-Ni-MOL for TC reached 93.5% within 60 min under the visible light condition. The improved photocatalytic performance of CD(Cu)-Ni-MOL was attributed to the constructed 2D layered structure and the special properties of CD(Cu). The doped Cu in carbon dots (CDs) exhibited excellent photocatalytic performance among the elements of Cu, Zn, Ni, Co and Fe. The order of photocatalytic performance improvement was Cu > Zn > Ni > Co > Fe. In addition, a possible degradation pathway for TC was proposed. This work confirms the great potential of CD(Cu)-Ni-MOL as a highly efficient photocatalyst in removing tetracycline pollutants in water.

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Tetracycline removal via adsorption and metal-free catalysis with 3D macroscopic N-doped porous carbon nanosheets: Non-radical mechanism and degradation pathway

Cited by 40 publications

References 76 publications

Metal‐Free Carbonaceous Catalytic Materials: Biomass Feedstocks for a Greener Future

Metal‐Free Carbonaceous Catalytic Materials: Biomass Feedstocks for a Greener Future

Spherical Bi₄O₅I₂/MoS₂ QDs Nanocomposites Activate Persulfate to Degrade Tetracycline Under Visible Light

Novel 2D photocatalyst of copper-doped carbon quantum dot CD(Cu) loaded with ultrathin Ni-MOL for degradation of tetracycline

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Tetracycline removal via adsorption and metal-free catalysis with 3D macroscopic N-doped porous carbon nanosheets: Non-radical mechanism and degradation pathway

Cited by 40 publications

References 76 publications

Metal‐Free Carbonaceous Catalytic Materials: Biomass Feedstocks for a Greener Future

Metal‐Free Carbonaceous Catalytic Materials: Biomass Feedstocks for a Greener Future

Spherical Bi4O5I2/MoS2 QDs Nanocomposites Activate Persulfate to Degrade Tetracycline Under Visible Light

Novel 2D photocatalyst of copper-doped carbon quantum dot CD(Cu) loaded with ultrathin Ni-MOL for degradation of tetracycline

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Spherical Bi₄O₅I₂/MoS₂ QDs Nanocomposites Activate Persulfate to Degrade Tetracycline Under Visible Light