Photocatalytic performance of multi-walled carbon nanotube/BiVO4 synthesized by electro-spinning process and its degradation mechanisms on oxytetracycline

Ye, Shengjun; Zhou, Min; Xu, Yanbin; Lai, Weikang; Yan, Kai; Huang, Lu; Ling, Jiayin; Zheng, Li

doi:10.1016/j.cej.2019.05.109

Cited by 89 publications

(26 citation statements)

References 54 publications

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Section: Photodegradation Mechanism and Cycling Abilitysupporting

confidence: 74%

“…Moreover, the morphology of the BiOI photocatalyst after the photodegradation study (Figure 9d) was identical to that of the fresh photocatalyst (Figure 2a). This also strongly supports the morphological stability of the BiOI photocatalyst [3,24,28,[29][30][31][32]. The photoactivity of the photocatalysts in the photodegradation of various organic pollutants has been investigated [3,24,28,[33][34][35][36][37].…”

Section: Photodegradation Mechanism and Cycling Abilitysupporting

confidence: 60%

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Sunlight-Active BiOI Photocatalyst as an Efficient Adsorbent for the Removal of Organic Dyes and Antibiotics from Aqueous Solutions

et al. 2021

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A bismuth oxyiodide (BiOI) photocatalyst with excellent sunlight-driven performance was synthesized by a solvothermal route without the addition of surfactants or capping agents. The prepared photocatalyst exhibited a tetragonal phase with an energy band gap of 2.15 eV. The efficiency of the photocatalyst was elucidated by monitoring the photodegradation of organic dyes and antibiotics. The BiOI photocatalyst provided a 95% removal of norfloxacin (NOR) antibiotics under visible light illumination. Interestingly, the complete removal of Rhodamine B (RhB) dye was achieved after 80 min of natural sunlight irradiation. The photodegradation reaction followed the first-order reaction. Both photo-generated holes and electrons play vital roles in the photodegradation of the pollutant. The BiOI photocatalyst remains stable and still shows a high efficiency even after the fifth run. This confirms the great cycling ability and high structural stability of the photocatalyst. The prepared BiOI catalyst, with a high surface area of 118 m2 g−1, can act as an excellent adsorbent as well. The synergistic effect based on both adsorption and photocatalysis is a key factor in achieving a very high removal efficiency. The photoactivity under sunlight is higher than that observed under visible light, supporting the practical use of the BiOI photocatalyst for the removal of organic pollutants in wastewater through the utilization of abundant solar energy.

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Section: Photodegradation Mechanism and Cycling Abilitysupporting

confidence: 74%

Section: Photodegradation Mechanism and Cycling Abilitysupporting

confidence: 60%

Sunlight-Active BiOI Photocatalyst as an Efficient Adsorbent for the Removal of Organic Dyes and Antibiotics from Aqueous Solutions

et al. 2021

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“…The peaks at 1348 and 1590 cm À1 corresponded to the D-band (the sp 3 defects of carbon atoms) and G-band (the sp 2 bonded carbon atoms), respectively. 34,35 The Raman I D /I G ratios (integral areas) are summarized in Table 1. Aer acid treatment, the value of the I D /I G ratio was obviously increased, conrming the presence of surface defects on the MWCNTs.…”

Section: Resultsmentioning

confidence: 99%

Studies on the effects of different multiwalled carbon nanotube functionalization techniques on the properties of bio-based hybrid non-isocyanate polyurethane

et al. 2020

RSC Adv.

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“…CNTs possess a high specific surface area to mass ratio ranging between 75 and 1020 m 2 /g coupled with an exceptional sorption capacity [ 11 , 188 , 189 ]. They exhibited hydrophobic interactions, van der Waals forces, and π–π stacking, leading to the formation of four different types of adsorption sites such as inner cavities, interstitial channels, external grooves, and outermost surfaces [ 190 ], making them a suitable solid material for photocatalytic degradation of PPCPs. CNTs have interesting properties such as large electron storage capacity, superior metallic conductivity, and light adsorption at a broad range wavelength, thereby making them a suitable solid material in the enhancement of the photocatalytic activity of TiO 2 [ 172 ].…”

Section: Carbon-solid Supports In Photocatalytic Degradationmentioning

confidence: 99%

Pharmaceuticals and personal care products in water and wastewater: a review of treatment processes and use of photocatalyst immobilized on functionalized carbon in AOP degradation

2020

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The presence of emerging contaminants such as pharmaceutical and personal care products in many aqueous matrices have been reported. One of such matrix is streams of wastewater, including wastewater treatment plants inflows and outflows and wastewater flow by-passing wastewater treatment plants. Their persistence arises from their resistant to breakdown, hence they may remain in the environment over long time, with a potential to cause adverse effects including endocrine disruption, gene toxicity, the imposition of sex organs, antibiotic resistance and many others in some aquatic organisms exposed to arrays of residues of pharmaceutical and personal care products. Among the treatment techniques, advanced oxidation processes have been reported to be a better technique through which these PPCPs can be degraded in the WWTPs. Heterogeneous photocatalysis using various photocatalyst immobilized on solid support such as activated carbon, graphene and carbon nanotubes in AOPs have been shown to be a viable and efficient method of PPCPs degradation. This is because, the performance of most WWTPs is limited since they were not designed to degrade toxic and recalcitrant PPCPs. This review highlight the occurrence, concentration of PPCPs in wastewater and the removal efficiency of heterogeneous photocatalysis of TiO2 immobilized on solid supports.

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Photocatalytic performance of multi-walled carbon nanotube/BiVO4 synthesized by electro-spinning process and its degradation mechanisms on oxytetracycline

Cited by 89 publications

References 54 publications

Sunlight-Active BiOI Photocatalyst as an Efficient Adsorbent for the Removal of Organic Dyes and Antibiotics from Aqueous Solutions

Sunlight-Active BiOI Photocatalyst as an Efficient Adsorbent for the Removal of Organic Dyes and Antibiotics from Aqueous Solutions

Studies on the effects of different multiwalled carbon nanotube functionalization techniques on the properties of bio-based hybrid non-isocyanate polyurethane

Pharmaceuticals and personal care products in water and wastewater: a review of treatment processes and use of photocatalyst immobilized on functionalized carbon in AOP degradation

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