Work

Synthesis of industrial waste-based geopolymer catalyst and its application in removing imidacloprid insecticide from water

Year: 2025

Type: article

Abstract: Geopolymer granules containing fly ash as aluminosilicate materials and mill scale as a catalyst were applied for photocatalytic degradation of imidacloprid insecticide. The surface properties of the geopolymer catalyst were optimized by providing an optimum ratio of waste materials and pore-forming agents. The geopolymer catalyst yielded complete imidacloprid removals during batch experiments, with more than 80 % of its removals taking place after only 1 h of UV exposure. High photocatalytic activities were maintained over 10 repetitive cycles, exhibiting its longevity during which a gradual release of sediment with higher photocatalytic activities was observed, thus increasing its overall photocatalytic degradation rate of the geopolymer catalyst.

Source: Case Studies in Chemical and Environmental Engineering

DOI: 10.1016/j.cscee.2025.101308

Authors: Samunya Sanguanpak, Premmanus Chittachumnonk, Chart Chiemchaisri, Ming Chun Lu

Institutions: National Science and Technology Development Agency, Thailand National Metal and Materials Technology Center, Kasetsart University, National Chung Hsing University

Language: English

Topic: Advanced Photocatalysis Techniques

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDGs: Responsible consumption and production, Clean water and sanitation

Open Access status: gold

Estimated APC paid: $760