Exploring zeolite-based composites in adsorption and photocatalysis for toxic wastewater treatment: Preparation, mechanisms, and future perspectives

Liaquat, Iqra; Munir, Ruba; Abbasi, Naseer Ahmed; Sadia, Bushra; Muneer, Amna; Younas, Fazila; Sardar, Muhammad Fahad; Zahid, Muhammad; Noreen, Saima

doi:10.1016/j.envpol.2024.123922

Cited by 5 publications

(1 citation statement)

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“…As one of the most abundant natural zeolites, clinoptilolite has been shown not only as a suitable carrier for photocatalytic active species but also as an active participant in the photocatalytic process. Zeolites have drawn interest due to their high surface area, three-dimensional micropore structure, high mechanical and thermal stability, and controllable acidity [28][29][30][31][32]. The porous lattice increases the surface area of photocatalysts and contributes to their recyclability.…”

Section: Introductionmentioning

confidence: 99%

Use of Natural Zeolite Clinoptilolite in the Preparation of Photocatalysts and Its Role in Photocatalytic Activity

Pavlović,

Rajić

2024

Minerals

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The use of natural zeolite clinoptilolite in preparing photocatalysts and its function in photocatalysis are discussed in this review. The importance of advanced oxidation processes (AOPs) and the potential of heterogeneous photocatalysis in removing environmental pollutants are emphasized. The review focuses on the synergistic effects of clinoptilolite with semiconductors (TiO2, ZnO, CuO, SnO2, and NiO) to prepare stable and active photocatalysts, highlighting recent advancements in this field. It explores clinoptilolite’s structural characteristics, highlighting its microporous nature, adaptable framework, and improved textural properties due to acid and alkali treatments. Particle size, crystal phase, and calcination temperature are three key synthesis parameters that affect photocatalytic activity and are highlighted in the discussion of these parameters and their methods. A discussion is held regarding the processes and mechanisms of photocatalytic degradation of different organic compounds under varying irradiation conditions, including UV, visible, and ambient sunlight. Clinoptilolite is vital in improving supported semiconductor oxides’ photocatalytic efficiencies, which aid in pollutant degradation and environmental remediation.

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