Enhanced heterogeneous photocatalytic perozone degradation of amoxicillin by ZnO modified TiO2 nanocomposites under visible light irradiation

Thi, Thanh Diem Ngo; Nguyen, Lan Huong; Nguyễn, Xuân Hoàn; Phung, Hiep Vu; Vinh, Tran Hoang; Pham, Viet Van; Thai, Nam Van; Le, Hoang Nghiem; Thanh, Duy Pham; Van, Huu Tap; Thi, Lan Huong Than; Thi, Thuy Duong Pham; Minh, Thanh Le; Quang, Huy Hoang Phan; Vu, Hoang Phuong Nguyen; Duc, Thao Tran; Nguyen, Hoang Q.

doi:10.1016/j.mssp.2022.106456

Cited by 19 publications

(4 citation statements)

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At present, the AMOX concentration reported in surface water and secondary water drainage was at the µg L −1 order [12]. Among the most used catalysts for the AMOX photodegradation are (i) TiO 2 [13]; (ii) TiO 2 nanotubes/graphene [14]; (iii) ZnO/TiO 2 nanocomposites [15]; (iv) TiO 2 /reduced graphene oxide [16], nanodiamond/TiO 2 composites [17], ZnO nanoparticles with hexagonal and spherical morphology [18]; etc. The best efficiency of AMOX photodegradation, equal to 99.84%, was reported when the TiO 2 /graphene oxide composites were used as catalyst [19].…”

Section: Introductionmentioning

confidence: 95%

Nanohybrid Composites Based on TiO2 and Single-Walled Carbon Nanohorns as Promising Catalysts for Photodegradation of Amoxicillin

Cercel,

Androne,

Florica

et al. 2023

Molecules

View full text Add to dashboard Cite

In this work, applications of nanohybrid composites based on titanium dioxide (TiO2) with anatase crystallin phase and single-walled carbon nanohorns (SWCNHs) as promising catalysts for the photodegradation of amoxicillin (AMOX) are reported. In this order, TiO2/SWCNH composites were prepared by the solid-state interaction of the two chemical compounds. The increase in the SWCNH concentration in the TiO2/SWCNH composite mass, from 1 wt.% to 5 wt.% and 10 wt.% induces (i) a change in the relative intensity ratio of the Raman lines located at 145 and 1595 cm−1, which are attributed to the Eg(1) vibrational mode of TiO2 and the graphitic structure of SWCNHs; and (ii) a gradual increase in the IR band absorbance at 1735 cm−1 because of the formation of new carboxylic groups on the SWCNHs’ surface. The best photocatalytic properties were obtained for the TiO2/SWCNH composite with a SWCNH concentration of 5 wt.%, when approx. 92.4% of AMOX removal was achieved after 90 min of UV irradiation. The TiO2/SWCNH composite is a more efficient catalyst in AMOX photodegradation than TiO2 as a consequence of the SWCNHs’ presence, which acts as a capture agent for the photogenerated electrons of TiO2 hindering the electron–hole recombination. The high stability of the TiO2/SWCNH composite with a SWCNH concentration of 5 wt.% is proved by the reusing of the catalyst in six photodegradation cycles of the 98.5 μM AMOX solution, when the efficiency decreases from 92.4% up to 78%.

show abstract

Section: Introductionmentioning

confidence: 95%

Nanohybrid Composites Based on TiO2 and Single-Walled Carbon Nanohorns as Promising Catalysts for Photodegradation of Amoxicillin

Cercel,

Androne,

Florica

et al. 2023

Molecules

View full text Add to dashboard Cite

show abstract

“…Joao et al [147] found that the removal of antibiotics oxalic acid and tetracycline by TiO 2 photocatalytic oxidation is mainly due to the action of active oxidant hydroxyl radicals, and the catalytic oxidation system not only has a good removal effect on antibiotics but also has high mineralization efficiency. Similarly, Thanh et al [148] studied the effect of ZnO-modified TiO 2 nanocomposites on the heterogeneous photocatalytic degradation of amoxicillin and found that the degradation and mineralization rates of amoxicillin were improved. To improve photocatalytic efficiency, a variety of catalytic materials have been used in photocatalytic research, including metal oxides and sulfides (TiO 2 , SnO 2 and CdS), metal semiconductors (BiOBr, BiOCl, BiVO 4 and GdVO 4 ) [149][150][151][152] and non-metallic semiconductors (gC3N4) [153].…”

Section: Ozone or Ozone Catalytic Oxidationmentioning

confidence: 99%

The Effect Review of Various Biological, Physical and Chemical Methods on the Removal of Antibiotics

Huang

Liu

et al. 2022

Water

View full text Add to dashboard Cite

Antibiotics are highly effective bactericidal drugs that are widely used in human medicine, aquaculture and animal husbandry. Antibiotics enter the aquatic environment through various routes due to low metabolic levels and increased use. Not only are antibiotics inherently toxic, but the spread of potential drug resistance introduced has been identified by the World Health Organization as one of the major threats and risks to global public health security. Therefore, how to efficiently remove antibiotics from water and eliminate the ecological safety hazards caused by antibiotics has been a hot topic in recent years. There are various research methods for decontaminating water with antibiotics. This paper reviews the research and application of various biological, physical, chemical methods and combined processes in antibiotic pollution control. Moreover, this paper describes the degradation mechanism, removal efficiency, influencing factors and technical characteristics of different antibiotics by various methods in detail. Finally, an outlook on future research in antibiotic removal is provided to help promote the development of antibiotic removal technology.

show abstract

“…Most often, dissolved O 2 reacts with e CB − . The formed O 2 •− has a dual role: it can react with organic substances [17,18] or produce • OH via a multistep reaction, especially in the case of TiO 2 and ZnO photocatalysts [19].…”

Section: Introductionmentioning

confidence: 99%

Comparison of TiO2 and ZnO for Heterogeneous Photocatalytic Activation of the Peroxydisulfate Ion in Trimethoprim Degradation

Náfrádi,

Alapi,

Veres

et al. 2023

Materials

View full text Add to dashboard Cite

The persulfate-based advanced oxidation process is a promising method for degrading organic pollutants. Herein, TiO2 and ZnO photocatalysts were combined with the peroxydisulfate ion (PDS) to enhance the efficiency. ZnO was significantly more efficient in PDS conversion and SO4•− generation than TiO2. For ZnO, the PDS increased the transformation rate of the trimethoprim antibiotic from 1.58 × 10−7 M s−1 to 6.83 × 10−7 M s−1. However, in the case of TiO2, the moderated positive effect was manifested mainly in O2-free suspensions. The impact of dissolved O2 and trimethoprim on PDS transformation was also studied. The results reflected that the interaction of O2, PDS, and TRIM with the surface of the photocatalyst and their competition for photogenerated charges must be considered. The effect of radical scavengers confirmed that in addition to SO4•−, •OH plays an essential role even in O2-free suspensions, and the contribution of SO4•− to the transformation is much more significant for ZnO than for TiO2. The negative impact of biologically treated domestic wastewater as a matrix was manifested, most probably because of the radical scavenging capacity of Cl− and HCO3−. Nevertheless, in the case of ZnO, the positive effect of PDS successfully overcompensates that, due to the efficient SO4•− generation. Reusability tests were performed in Milli-Q water and biologically treated domestic wastewater, and only a slight decrease in the reactivity of ZnO photocatalysts was observed.

show abstract

Enhanced heterogeneous photocatalytic perozone degradation of amoxicillin by ZnO modified TiO2 nanocomposites under visible light irradiation

Cited by 19 publications

References 69 publications

Nanohybrid Composites Based on TiO2 and Single-Walled Carbon Nanohorns as Promising Catalysts for Photodegradation of Amoxicillin

Nanohybrid Composites Based on TiO2 and Single-Walled Carbon Nanohorns as Promising Catalysts for Photodegradation of Amoxicillin

The Effect Review of Various Biological, Physical and Chemical Methods on the Removal of Antibiotics

Comparison of TiO2 and ZnO for Heterogeneous Photocatalytic Activation of the Peroxydisulfate Ion in Trimethoprim Degradation

Contact Info

Product

Resources

About