Ag3PO4/nanocellulose composite for effective sunlight driven photodegradation of organic dyes in wastewater

Lebogang, Lesedi; Bosigo, Romang; Lefatshe, Kebadiretse; Muiva, Cosmas M.

doi:10.1016/j.matchemphys.2019.121756

Cited by 39 publications

(8 citation statements)

References 38 publications

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“…Alternatively, the photocatalytic activities of silver phosphate (Ag 3 PO 4 ) have been extensively studied for the removal of organic contaminants in the environment. Lebogang et al (2019) [112] synthesized an Ag 3 PO 4 /nanocellulose composite using an in situ facile method for the photocatalytic degradation of methylene blue and methyl orange under solar irradiation. The photocatalytic degradation rate of MO was 90% in DI and 70% in wastewater over the same period.…”

Section: Nanocellulose As Photocatalystmentioning

confidence: 99%

“…Various methods have been proven to be effective for treating the organic dyes in wastewater such as non-covalent adsorption, membrane filtration, ion exchange, and chemical oxidation. Unfortunately, these strategies may lead to insufficient pollutant degradation, resulting in secondary pollution [ 112 ]. Titanium dioxide (TiO 2 ) has been widely used as a semiconductor photocatalyst because of its reactivity, stability, and cost effectiveness.…”

Section: Environmental Applications Of Nanocellulose-based Membranesmentioning

confidence: 99%

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Recent Development and Environmental Applications of Nanocellulose-Based Membranes

et al. 2022

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Extensive research and development in the production of nanocellulose production, a green, bio-based, and renewable biomaterial has paved the way for the development of advanced functional materials for a multitude of applications. From a membrane technology perspective, the exceptional mechanical strength, high crystallinity, tunable surface chemistry, and anti-fouling behavior of nanocellulose, manifested from its structural and nanodimensional properties are particularly attractive. Thus, an opportunity has emerged to exploit these features to develop nanocellulose-based membranes for environmental applications. This review provides insights into the prospect of nanocellulose as a matrix or as an additive to enhance membrane performance in water filtration, environmental remediation, and the development of pollutant sensors and energy devices, focusing on the most recent progress from 2017 to 2022. A brief overview of the strategies to tailor the nanocellulose surface chemistry for the effective removal of specific pollutants and nanocellulose-based membrane fabrication approaches are also presented. The major challenges and future directions associated with the environmental applications of nanocellulose-based membranes are put into perspective, with primary emphasis on advanced multifunctional membranes.

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Section: Nanocellulose As Photocatalystmentioning

confidence: 99%

Section: Environmental Applications Of Nanocellulose-based Membranesmentioning

confidence: 99%

Recent Development and Environmental Applications of Nanocellulose-Based Membranes

et al. 2022

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“…NPs can be also synthesized in situ and directly fixed on cellulose, which represents the preferred approach in many studies. As an example, a recent paper describes the synthesis of Ag 3 PO 4 particles from AgNO 3 in the presence of NC sheets, following an ion exchange method [180]. The Ag 3 PO 4 /NC composite results in being particularly effective at promoting the sunlight-induced photodegradation of MB and methyl orange (MO), both in deionized water and in a more complex wastewater matrix.…”

Section: Cellulose Doping With Agnps Generated In Situmentioning

confidence: 99%

Silver Nanoparticles for Water Pollution Monitoring and Treatments: Ecosafety Challenge and Cellulose-Based Hybrids Solution

et al. 2020

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Silver nanoparticles (AgNPs) are widely used as engineered nanomaterials (ENMs) in many advanced nanotechnologies, due to their versatile, easy and cheap preparations combined with peculiar chemical-physical properties. Their increased production and integration in environmental applications including water treatment raise concerns for their impact on humans and the environment. An eco-design strategy that makes it possible to combine the best material performances with no risk for the natural ecosystems and living beings has been recently proposed. This review envisages potential hybrid solutions of AgNPs for water pollution monitoring and remediation to satisfy their successful, environmentally safe (ecosafe) application. Being extremely efficient in pollutants sensing and degradation, their ecosafe application can be achieved in combination with polymeric-based materials, especially with cellulose, by following an eco-design approach. In fact, (AgNPs)–cellulose hybrids have the double advantage of being easily produced using recycled material, with low costs and possible reuse, and of being ecosafe, if properly designed. An updated view of the use and prospects of these advanced hybrids AgNP-based materials is provided, which will surely speed their environmental application with consequent significant economic and environmental impact.

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“…A promising photocatalyst [42], the iron-based photocatalyst, has been widely used in the degradation of organic dyes due to its wide light absorption range, low cost, adjustable bandgap, high stability, and recyclability [43]. Iron-based photocatalysts can be categorized into three types, including iron oxide-compounding [44][45][46], iron ion-doping [47,48] and iron oxide-modifying [43,49,50].…”

Section: Introductionmentioning

confidence: 99%

Carbene Ligand-Doped Fe2O3 Composite for Rapid Removal of Multiple Dyes under Sunlight

et al. 2021

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Contaminated water due to industrial organic dyes presents a significant challenge to sustainability. As a material of green energy, photocatalysts offer an effective and environmentally friendly way to deal with organic dyes for water treatment. A series of simple and highly efficient iron photocatalysts with carbene ligands were developed, which, under the illumination of sunlight, can rapidly degrade multiple organic dyes in water at room temperature, including rhodamine B (RhB), indigo carmine (IC), methyl blue (MB), and congo red (CR). The field-only surface integral method was carried out to determine the absorption spectrum of photocatalyst particles. Under the optimized experimental conditions which were selected by the orthogonal experiments for four dyes, 0.5a@Fe2O3 and 2c@Fe2O3 demonstrated good stability and photocatalytic activity. These two composite materials not only have the ability to remove 98.0% of the degradation in 10 s, but also maintain high reactivity after a few cycles of repeated use.

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Ag3PO4/nanocellulose composite for effective sunlight driven photodegradation of organic dyes in wastewater

Cited by 39 publications

References 38 publications

Recent Development and Environmental Applications of Nanocellulose-Based Membranes

Recent Development and Environmental Applications of Nanocellulose-Based Membranes

Silver Nanoparticles for Water Pollution Monitoring and Treatments: Ecosafety Challenge and Cellulose-Based Hybrids Solution

Carbene Ligand-Doped Fe2O3 Composite for Rapid Removal of Multiple Dyes under Sunlight

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