Synergistic effect of adsorptive photocatalytic oxidation and degradation mechanism of cyanides and Cu/Zn complexes over TiO2/ZSM-5 in real wastewater

Pan, Yubo; Zhang, Yali; Huang, Yaoguo; Jia, Yun; Chen, Linlin; Cui, Hongyou

doi:10.1016/j.jhazmat.2021.125802

Cited by 45 publications

(14 citation statements)

References 42 publications

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“…The zeta potential of AC-1.5-adsorbed Cd 2þ changed to 11.1 mV because of the increase in zeta potential of the AC-1.5 surface with adsorbed Cd 2þ . The zeta potential of AC-1.5-adsorbed Cd 2þ surface increased significantly, which also proved that AC-1.5 successfully adsorbed Cd 2þ (Martin et al 2021).…”

Section: Adsorption Capacitysupporting

confidence: 55%

Adsorption of cadmium ions from simulated battery wastewater by polyethylene polyamine-modified activated carbon

Wang

Lan

et al. 2021

Water Science and Technology

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The objective of this work was to study the treatment of waste water containing cadmium ions (Cd2+). Activated carbon (AC) was modified with potassium hydroxide (KOH) and polyethylene polyamine (PEPA). The structure and morphology of the modified AC was characterized. The effect of pH on adsorption was investigated, and the binary competitive adsorption and the reusability of the modified AC were studied. Subsequently the modified AC was used as an adsorbent for the removal of Cd2+ from wastewater. The adsorption capacity of optimized modified AC was 9.7 times that of unmodified AC. Kinetic adsorption curves were in accordance with pseudo-second-order kinetics, and the isothermal curves were in accordance with the Langmuir equation. The results indicate that the AC has a potential in the treatment of the waste water containing Cd2+ discharged from chemical plants during battery manufacturing.

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Section: Adsorption Capacitysupporting

confidence: 55%

Adsorption of cadmium ions from simulated battery wastewater by polyethylene polyamine-modified activated carbon

Wang

Lan

et al. 2021

Water Science and Technology

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“…Table 2 lists the EDS results for TiO 2 , biochar, and C/TiO 2 , confirming Si, Fe, and other elements were successfully introduced in C/TiO 2 after biochar modification, which enhanced its photocatalytic ability. 41–43…”

Section: Resultsmentioning

confidence: 99%

“…Table 2 lists the EDS results for TiO 2 , biochar, and C/TiO 2 , conrming Si, Fe, and other elements were successfully introduced in C/TiO 2 aer biochar modication, which enhanced its photocatalytic ability. [41][42][43] The N 2 adsorption/desorption isotherms of C/TiO 2 are shown in Fig. 7, where it can be seen there was a hysteresis loop at a relative pressure (P/P o ) ranging from 0.6 to 0.85, which illustrated that the biochar-modied TiO 2 exhibited a typical type-IV isotherm with the existence of a mesoporous structure.…”

Section: Sem-eds and Betmentioning

confidence: 98%

Photocatalytic performance of biochar-modified TiO₂(C/TiO₂) for ammonia–nitrogen removal

Wang

Tian

et al. 2023

RSC Adv.

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“…AOPs commonly used in wastewater treatment are classified as photocatalytic processes where the oxidizing agent is activated by ultraviolet radiation (e.g., H 2 O 2 /UV, O 3 /H 2 O 2 /UV, UV/TiO 2 , H 2 O 2 /TiO 2 /UV, O 3 /TiO 2 /UV) (Berkün Olgun et al 2021 ; Pan et al 2021 , 2022 ). Processes based on Fenton reactions involve an oxidant (hydrogen peroxide) that is activated by a catalyst, usually Fe (e.g., Fe 2 + /H 2 O 2 , Fe 2+ /H 2 O 2 /UV, Electro -Fenton, photo-Fenton, Solar-Fenton) (Bello, Abdul Raman and Asghar, 2019b ; Segura et al 2021 ; Zhu et al 2022 ).…”

Section: Treatments For Indigo Removal and Denim Wastewatermentioning

confidence: 99%

A critical review of textile industry wastewater: green technologies for the removal of indigo dyes

Castillo-Suárez

Sierra-Sánchez²,

Linares-Hernández³

et al. 2023

Int. J. Environ. Sci. Technol.

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The denim textile industry represents an important productive sector. It generates wastewater with low biodegradability due to the presence of persistent pollutants, which can produce toxic and carcinogenic compounds; therefore, wastewater treatment reduces risks to aquatic life and public health. This paper presents a review of 172 papers regarding textile industry wastewater treatment for the removal of contaminants, especially indigo dyes used in the denim industry, in the context of green technologies. The physicochemical characteristics of textile wastewater, its environmental and health impacts, and the permissible limit regulations in different countries were reviewed. Biological, physicochemical and advanced oxidation processes for the removal of indigo dyes were reviewed. The goal of this study was to analyze the characteristics of green technologies; however, the research does not clearly demonstrate an effect on energy consumption savings, carbon footprint decreases, and/or waste generation. Advanced oxidation processes showed the highest color removal efficiency (95 and 97% in synthetic or real wastewater, respectively). Photocatalysis and Fenton reactions were the most efficient processes. None of the revised works presented results regarding upscaling for industrial application, and the results should be discussed in terms of the guidelines and maximum permissible limits established by international legislation. New technologies need to be developed and evaluated in a sustainable context with real wastewater.

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Synergistic effect of adsorptive photocatalytic oxidation and degradation mechanism of cyanides and Cu/Zn complexes over TiO2/ZSM-5 in real wastewater

Cited by 45 publications

References 42 publications

Adsorption of cadmium ions from simulated battery wastewater by polyethylene polyamine-modified activated carbon

Adsorption of cadmium ions from simulated battery wastewater by polyethylene polyamine-modified activated carbon

Photocatalytic performance of biochar-modified TiO₂(C/TiO₂) for ammonia–nitrogen removal

A critical review of textile industry wastewater: green technologies for the removal of indigo dyes

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Synergistic effect of adsorptive photocatalytic oxidation and degradation mechanism of cyanides and Cu/Zn complexes over TiO2/ZSM-5 in real wastewater

Cited by 45 publications

References 42 publications

Adsorption of cadmium ions from simulated battery wastewater by polyethylene polyamine-modified activated carbon

Adsorption of cadmium ions from simulated battery wastewater by polyethylene polyamine-modified activated carbon

Photocatalytic performance of biochar-modified TiO2(C/TiO2) for ammonia–nitrogen removal

A critical review of textile industry wastewater: green technologies for the removal of indigo dyes

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Product

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Photocatalytic performance of biochar-modified TiO₂(C/TiO₂) for ammonia–nitrogen removal