Enhanced photocatalytic degradation of furfural and a real wastewater using UVC/TiO2 nanoparticles immobilized on white concrete in a fixed-bed reactor

Gholami, Nazanin; Ghasemi, Bahram; Anvaripour, Bagher; Jorfi, Sahand

doi:10.1016/j.jiec.2018.01.007

Cited by 37 publications

(7 citation statements)

References 133 publications

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“…To the best of our knowledge, some studies have reported similar findings for treating industrial wastewaters using AOPs. 4,61–63 …”

Section: Resultsmentioning

confidence: 99%

“…11). 4 3.2.10 Estimating electrical energy consumption. According to the kinetic results, decontamination rate of phenol versus time at different phenol concentrations matched pseudo-rstorder kinetic model.…”

Section: Mineralizationmentioning

confidence: 99%

“…Accordingly, wastewater containing a high concentration of aromatic and toxic contaminants should be effectively treated before being discharged into natural channels. [1][2][3][4][5][6] In particular, due to non-biodegradability of phenolic compounds in aqueous solutions, conventional biological methods are inefficient for effective treatment of these compounds. In recent years, advanced oxidation processes (AOPs) have changed into an alternative solution in the wastewater treatment plants for degradation of recalcitrant organic compounds thanks to their high degradation efficiency, low-cost, fast reaction rate, and non-selective degradation.…”

Section: Introductionmentioning

confidence: 99%

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Photocatalytic decontamination of phenol and petrochemical wastewater through ZnO/TiO₂ decorated on reduced graphene oxide nanocomposite: influential operating factors, mechanism, and electrical energy consumption

et al. 2018

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anchored on a reduced graphene oxide (rGO) ternary nanocomposite heterojunction was synthesized via the multi-step method including hydrothermal, solvothermal and sol-gel methods. XRD, Raman, FESEM, EDX, Dot Mapping EDS, BET, FTIR, UV-VIS, TGA, and EIS techniques were utilized for characterizing as-synthesized catalysts. The XRD and Raman data proved the formation of anatase phase TiO 2 and wurtzite phase ZnO in the prepared samples. Further, the UV-Vis spectrum confirmed that the band gap value of ZnO/TiO 2 diminished on introduction of graphene oxide. Photocatalytic performance of the fabricated catalysts was investigated by decontamination of phenol in aqueous solutions. The effect of different operational factors such as pH, catalyst dosage, phenol concentration, and light illumination was investigated to find the optimum decontamination conditions. According to the results, complete degradation of phenol was achieved at pH ¼ 4, catalyst dosage of 0.6 g L À1 , light intensity of 150 W, and phenol initial concentration of 60 ppm at 160 min under visible light illumination. With the addition of graphene oxide to the composite, a significant increase was detected in the photocatalytic performance due to the higher available surface area and lower electron/hole recombination rate. In addition, the scavenging experiments revealed that the $OH is responsible for the degradation of phenol during the reaction. The degradation mechanism, economic performance, mineralization, and recyclability were also investigated. Kinetic studies confirmed that photocatalytic degradation process followed the pseudo-first-order kinetic model. A case of real wastewater treatment was used to examine the performance of the catalyst for real case studies.

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“…To the best of our knowledge, some studies have reported similar findings for treating industrial wastewaters using AOPs. 4,61–63 …”

Section: Resultsmentioning

confidence: 99%

Section: Mineralizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Photocatalytic decontamination of phenol and petrochemical wastewater through ZnO/TiO₂ decorated on reduced graphene oxide nanocomposite: influential operating factors, mechanism, and electrical energy consumption

et al. 2018

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“…For example, one ton of furfural can produce about 20–30 tons of furfural wastewater, and more than 200 factories in China generated about 4–6 million tons of furfural wastewater annually . Compared with the membrane technique, adsorption, and photodecomposition in furfural removal, microbial bioremediation is considered the most efficient and promising strategy. − Furfural is thought to be harmful to human health and can cause irritation because of its high toxicity . High concentrations of furfural can be fatal, and the dermal adsorption of furfural can lead to acute damage, especially to the nervous system and lungs …”

Section: Introductionmentioning

confidence: 99%

“…7−11 Furfural is thought to be harmful to human health and can cause irritation because of its high toxicity. 12 High concentrations of furfural can be fatal, and the dermal adsorption of furfural can lead to acute damage, especially to the nervous system and lungs. 4 The development of biogas via anaerobic digestion (AD) has grown rapidly.…”

Section: ■ Introductionmentioning

confidence: 99%

Activated Carbon Facilitates Anaerobic Digestion of Furfural Wastewater: Effect of Direct Interspecies Electron Transfer

Xia

Ding

Huang

et al. 2022

ACS Sustainable Chem. Eng.

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Anaerobic digestion of furfural wastewater suffers from toxicity to microbes, which reduces its performance. The toxic effects may be eliminated by a sustainable way of conductive material supplementation. In this study, the effect on anaerobic digestion of furfural (0.5–4 g/L) was investigated by adding 0–40 g/L granular activated carbon (GAC) in batch tests. The innovation of this current study is to explore the potential direct interspecies electron transfer (DIET) for the first time in furfural degradation as the sole substrate in anaerobic digestion. The results demonstrated that when furfural was the sole substrate, in the presence of GAC, the peak methane production rate was increased by 46.0%, while the specific methane yield was improved by 24.7%, compared with the control. Additionally, the electroactive Geobacter sulfurreducens abundance in biofilms attached to the surface of GAC was 19.0 folds higher than that in the control. The abundances of the related genes of methane metabolism and furfural degradation in biofilms were 1.1 and 5.8 folds higher than the control by metagenomic analysis, respectively. These lines of evidence suggested that the pathway of furfural metabolism to methane among Moorella species, G. sulfurreducens, and Methanothrix species based on DIET was likely established.

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Sono-assisted photocatalytic degradation of ciprofloxacin in aquatic media using g-C3N4/MOF-based nanocomposite under visible light irradiation

Yeganeh,

Sobhi,

fallah

et al. 2024

Environ Sci Pollut Res

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Enhanced photocatalytic degradation of furfural and a real wastewater using UVC/TiO2 nanoparticles immobilized on white concrete in a fixed-bed reactor

Cited by 37 publications

References 133 publications

Photocatalytic decontamination of phenol and petrochemical wastewater through ZnO/TiO₂ decorated on reduced graphene oxide nanocomposite: influential operating factors, mechanism, and electrical energy consumption

Photocatalytic decontamination of phenol and petrochemical wastewater through ZnO/TiO₂ decorated on reduced graphene oxide nanocomposite: influential operating factors, mechanism, and electrical energy consumption

Activated Carbon Facilitates Anaerobic Digestion of Furfural Wastewater: Effect of Direct Interspecies Electron Transfer

Sono-assisted photocatalytic degradation of ciprofloxacin in aquatic media using g-C3N4/MOF-based nanocomposite under visible light irradiation

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Enhanced photocatalytic degradation of furfural and a real wastewater using UVC/TiO2 nanoparticles immobilized on white concrete in a fixed-bed reactor

Cited by 37 publications

References 133 publications

Photocatalytic decontamination of phenol and petrochemical wastewater through ZnO/TiO2 decorated on reduced graphene oxide nanocomposite: influential operating factors, mechanism, and electrical energy consumption

Photocatalytic decontamination of phenol and petrochemical wastewater through ZnO/TiO2 decorated on reduced graphene oxide nanocomposite: influential operating factors, mechanism, and electrical energy consumption

Activated Carbon Facilitates Anaerobic Digestion of Furfural Wastewater: Effect of Direct Interspecies Electron Transfer

Sono-assisted photocatalytic degradation of ciprofloxacin in aquatic media using g-C3N4/MOF-based nanocomposite under visible light irradiation

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Photocatalytic decontamination of phenol and petrochemical wastewater through ZnO/TiO₂ decorated on reduced graphene oxide nanocomposite: influential operating factors, mechanism, and electrical energy consumption

Photocatalytic decontamination of phenol and petrochemical wastewater through ZnO/TiO₂ decorated on reduced graphene oxide nanocomposite: influential operating factors, mechanism, and electrical energy consumption