Kraft lignin-based carbon xerogel/zinc oxide composite for 4-chlorophenol solar-light photocatalytic degradation: effect of pH, salinity, and simultaneous Cr(VI) reduction (2022)
- Authors:
- USP affiliated authors: RODRIGUES, LIANA ALVARES - EEL ; LANZA, MARCOS ROBERTO DE VASCONCELOS - IQSC ; ROCHA, ROBSON DA SILVA - EEL ; MORAES, NÍCOLAS PERCIANI DE - EEL ; SILVA, TAYNARA OLIVEIRA - IQSC
- Unidades: EEL; IQSC
- DOI: 10.1007/s11356-022-22825-z
- Assunto: FOTOCATÁLISE
- Keywords: Kraft lignin; Photocatalysis; Zinc oxide; 4-Chlorophenol
- Agências de fomento:
- Language: Inglês
- Abstract: Considering the ever-increasing need for efficient wastewater treatment, this study focused on the development of new kraft lignin-based carbon xerogel/zinc oxide (XCL/ZnO w) photocatalysts. The inclusion of the carbon xerogel is expected to cause an improvement in charge transfer throughout the photoactivation process, consequently enhancing its overall photocatalytic efficiency. Characterization shows that the materials developed are composed of both zinc oxide and carbon xerogel. The addition of the lignin-based carbon xerogel caused a significant morphological modification to the composite materials, resulting in a greater specific surface area. Regarding the photocatalytic efficiency, the optimized composite (XCL/ZnO 1.0) displayed superior efficiency to the pure zinc oxide, especially when calcined at 700 °C, with an increase of 20% in the overall photodegradation capacity for the 4-chlorophenol (4CP) molecule. The XCL/ZnO 1.0 also displayed better performance than its tannin counterpart, previously reported in the literature, obtaining a 60% increase in the apparent reaction rate constant. The XCL/ZnO 1.0 also displayed better performance for the simultaneous hexavalent chrome (Cr (VI)) reduction/4CP oxidation reaction. Salinity and system pH had a significant influence on the efficiency of the 4CP photodegradation, as higher values of salinity and lower pHs caused a decrease in the overall efficiency of the process. At last, chronoamperometry and open-circuit potential tests confirmed the superiority of the XCL/ZnO 1.0 over the pure ZnO, highlighting the beneficial impact of the carbon xerogel on the charge transport dynamics of the composite.
- Imprenta:
- Publisher: Springer
- Publisher place: Bordeaux-FR
- Date published: 2022
- Source:
- Título: Environmental Science and Pollution Research
- ISSN: 0944-1344
- Volume/Número/Paginação/Ano: v.30, p.8280-8296, 2022
- Este periódico é de acesso aberto
- Este artigo NÃO é de acesso aberto
-
ABNT
MORAES, Nícolas Perciani de et al. Kraft lignin-based carbon xerogel/zinc oxide composite for 4-chlorophenol solar-light photocatalytic degradation: effect of pH, salinity, and simultaneous Cr(VI) reduction. Environmental Science and Pollution Research, v. 30, p. 8280-8296, 2022Tradução . . Disponível em: https://doi.org/10.1007/s11356-022-22825-z. Acesso em: 08 fev. 2026. -
APA
Moraes, N. P. de, Siervo, A. de, Silva, T. O., Rocha, R. da S., Reddy, D. A., Lianqing, Y., et al. (2022). Kraft lignin-based carbon xerogel/zinc oxide composite for 4-chlorophenol solar-light photocatalytic degradation: effect of pH, salinity, and simultaneous Cr(VI) reduction. Environmental Science and Pollution Research, 30, 8280-8296. doi:10.1007/s11356-022-22825-z -
NLM
Moraes NP de, Siervo A de, Silva TO, Rocha R da S, Reddy DA, Lianqing Y, Lanza MR de V, Rodrigues LA. Kraft lignin-based carbon xerogel/zinc oxide composite for 4-chlorophenol solar-light photocatalytic degradation: effect of pH, salinity, and simultaneous Cr(VI) reduction [Internet]. Environmental Science and Pollution Research. 2022 ;30 8280-8296.[citado 2026 fev. 08 ] Available from: https://doi.org/10.1007/s11356-022-22825-z -
Vancouver
Moraes NP de, Siervo A de, Silva TO, Rocha R da S, Reddy DA, Lianqing Y, Lanza MR de V, Rodrigues LA. Kraft lignin-based carbon xerogel/zinc oxide composite for 4-chlorophenol solar-light photocatalytic degradation: effect of pH, salinity, and simultaneous Cr(VI) reduction [Internet]. Environmental Science and Pollution Research. 2022 ;30 8280-8296.[citado 2026 fev. 08 ] Available from: https://doi.org/10.1007/s11356-022-22825-z - Facile Synthesis of Resorcinol-based Carbon Xerogel/zinc Oxide Composite for Efficient Photodegradation of Sulfamerazine Under Solar Light
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- Combining the power of H2O2-based processes with heterogeneous photocatalysis for the degradation of sulfamerazine
- Improving the H2O2 electrogeneration selectivity of biomass-based carbon xerogels through modification with NaNbO3
- ZnO/CeO2/carbon xerogel composites with direct Z-scheme heterojunctions: Enhancing photocatalytic remediation of 4-chlorophenol under visible light
- Sulfamerazine degradation employing a novel Z-scheme TiO2/KNbO3/ g-C3N4 photocatalyst under artificial sunlight: Insights on degradation mechanism and toxicity
Informações sobre o DOI: 10.1007/s11356-022-22825-z (Fonte: oaDOI API)
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