Recent advances in nano-semiconductors photocatalysis for degrading organic contaminants and microbial disinfection in wastewater: A comprehensive review

Jabbar, Zaid H.; Ebrahim, Shahlaa Esmail

doi:10.1016/j.enmm.2022.100666

Cited by 49 publications

(24 citation statements)

References 203 publications

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“…Heterogeneous photocatalysis disinfection using solid photocatalyst with ROS generation has been considered as an advantageous alternative to homogeneous disinfection because it possesses several advantages such as clean productions and feasible separation. 28,29 Heterogeneous photocatalysis aided by nano metal oxides as catalyzer rather than bulk catalytic agents is gradually applied to reduce ARGs and ARBs in wastewater. High reduction efficiencies were obtained due to the extremely high specific surface area of nano catalyzers.…”

Section: Introductionmentioning

confidence: 99%

Heterogeneous UV disinfection aided by ZnO/Al₂O₃ composites for inhibiting antibiotic resistant bacteria photoreactivation and gene recovery

Zhang

Hua

et al. 2022

Environ. Sci.: Nano

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Section: Introductionmentioning

confidence: 99%

Heterogeneous UV disinfection aided by ZnO/Al₂O₃ composites for inhibiting antibiotic resistant bacteria photoreactivation and gene recovery

Zhang

Hua

et al. 2022

Environ. Sci.: Nano

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“…Despite their effectiveness, they suffer from e-/h+ recombination, wide-band-gap energy, and lower stability, all of which can significantly reduce their efficiency [ 5 ]. Therefore, some important techniques and modifications, such as the preparation of nanoparticles, doping and the construction of heterojunctions, have been applied to address these drawbacks [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Deep-Eutectic-Solvent-Assisted Synthesis of a Z-Scheme BiVO4/BiOCl/S,N-GQDS Heterojunction with Enhanced Photocatalytic Degradation Activity under Visible-Light Irradiation

Ren

Liu

et al. 2022

Micromachines

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Z-scheme heterojunction photocatalytic nanomaterial designs have attracted attention due to their high catalytic performance. Deep eutectic solvents (DESs) have been used as green, sustainable media, acting as solvents and structure inducers in the synthesis of nanomaterials. In this work, a novel visible-light-absorption-enhanced bismuth vanadate/bismuth oxychloride/sulfur, nitrogen co-doped graphene quantum dot (BiVO4/BiOCl/S,N-GQDS) heterojunction photocatalyst was prepared in a deep eutectic solvent. The photosynthetic activity of the BiVO4/BiOCl/S,N-GQDS composite was determined by the photocatalytic degradation of rhodamine B (RhB) under visible-light irradiation. The results showed that the highest photocatalytic activity of BiVO4/BiOCl/S,N-GQDS was achieved when the doping amount of S,N-GQDS was 3%, and the degradation rate of RhB reached 70% within 5 h. The kinetic and photocatalytic cycles showed that the degradation of Rhb was in accordance with the quasi-primary degradation kinetic model, and the photocatalytic performance remained stable after four photocatalytic cycles. Ultraviolet–visible diffuse reflectance (UV-DRS) and photoluminescence (PL) experiments confirmed that BiVO4/BiOCl/S,N-GQDS ternary heterojunctions have a narrow band gap energy (2.35 eV), which can effectively improve the separation efficiency of the photogenerated electron–hole pairs and suppress their complexation. This is due to the construction of a Z-scheme charge process between the BiVO4/BiOCl binary heterojunction and S,N-GQDS, which achieves effective carrier separation and thus a strong photocatalytic capability. This work not only provides new insights into the design of catalysts using a green solvent approach but also provides a reference for the study of heterojunction photocatalytic materials based on bismuth vanadate, as well as new ideas for other photocatalytic materials.

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“…Since the discovery of photoelectrochemical water splitting reaction by Fujishima and Honda (1972), photocatalysis using semiconductor as an AOP has attracted increasing attention (Sillanpää et al 2018; Jabbar and Esmail Ebrahim 2022). Heterogeneous photocatalysis (HP) applied to water/wastewater treatment have been reported for decades (Malato et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Design of biomass-based composite photocatalysts for wastewater treatment: a review over the past decade and future prospects

Pastre

Cunha

Marques

2022

Environ Sci Pollut Res

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Biomass-based composites (BCPs) have been investigated for more than one decade as photocatalysts for pollutants´ water treatment, however their technological application remains restricted. The systematic review performed aims to exhibit the latest advancement in photocatalytic degradation of pollutants in aqueous solution by BCPs synthesized with biomass and TiO 2 and/or ZnO, and to identify the necessary steps to achieve BCPs large scale application. Multivariate data analysis approach was performed to identify trend relationships between the BCPs synthesis method, the experimental conditions, and the BCPs characteristics correlated with the observed removal e ciency and the photodegradation kinetics. The results indicated the relevance of adsorption processes on the pollutants removal e ciency, re ected by the principal component analysis (PCA) performed on all categories of pollutants (PCA_pol). Furthermore, the PCA applied to textile dyes (PCA_dyes) and pharmaceutical compounds (PCA_pharma) also indicate the in uence of variables related to the composite synthesis (i.e. thermal treatment and time spent on BCPs synthesis) and photocatalytic experimental parameters (catalyst concentration, pollutant concentration and irradiation time) on the degradation kinetic accomplished by BCPs. The characterization of composites reveals that the speci c surface area and the narrow band gap are key characteristics for BCPs to serve as a competitive photocatalyst. The stability and recyclability of the BCPs are also discussed as necessary properties to overcome the experimental/lab scale phase and to move to full-scale applications. Further investigations are recommended to assess the performance of BCPs when treating real water, compared to commercial catalysts, as well as cost evaluation.

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Recent advances in nano-semiconductors photocatalysis for degrading organic contaminants and microbial disinfection in wastewater: A comprehensive review

Cited by 49 publications

References 203 publications

Heterogeneous UV disinfection aided by ZnO/Al₂O₃ composites for inhibiting antibiotic resistant bacteria photoreactivation and gene recovery

Heterogeneous UV disinfection aided by ZnO/Al₂O₃ composites for inhibiting antibiotic resistant bacteria photoreactivation and gene recovery

Deep-Eutectic-Solvent-Assisted Synthesis of a Z-Scheme BiVO4/BiOCl/S,N-GQDS Heterojunction with Enhanced Photocatalytic Degradation Activity under Visible-Light Irradiation

Design of biomass-based composite photocatalysts for wastewater treatment: a review over the past decade and future prospects

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Recent advances in nano-semiconductors photocatalysis for degrading organic contaminants and microbial disinfection in wastewater: A comprehensive review

Cited by 49 publications

References 203 publications

Heterogeneous UV disinfection aided by ZnO/Al2O3 composites for inhibiting antibiotic resistant bacteria photoreactivation and gene recovery

Heterogeneous UV disinfection aided by ZnO/Al2O3 composites for inhibiting antibiotic resistant bacteria photoreactivation and gene recovery

Deep-Eutectic-Solvent-Assisted Synthesis of a Z-Scheme BiVO4/BiOCl/S,N-GQDS Heterojunction with Enhanced Photocatalytic Degradation Activity under Visible-Light Irradiation

Design of biomass-based composite photocatalysts for wastewater treatment: a review over the past decade and future prospects

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Heterogeneous UV disinfection aided by ZnO/Al₂O₃ composites for inhibiting antibiotic resistant bacteria photoreactivation and gene recovery

Heterogeneous UV disinfection aided by ZnO/Al₂O₃ composites for inhibiting antibiotic resistant bacteria photoreactivation and gene recovery