Work

High-purity amorphous silica from industrial filter cake waste: synthesis and process optimization

Year: 2024

Type: article

Abstract: The globally increasing concern over industrial byproducts highlights the need for sustainable waste management solutions. Repurposing such byproducts offers a promising approach to sustaining development. This study focuses on the extraction of silica from filter cake waste (FCW). Amorphous silica was successfully synthesized through sol–gel method using acetic acid as the precipitation agent. XRD and SEM analyses were used to confirm the crystal structure of silica to be amorphous, while FTIR studies identified characteristic Si−O−Si bonds, indicating high purity of the extract. The silica purity was further validated by EDS analysis to be about 98.98%. Optimization of the extraction process was carried through variation of parameters such as NaOH concentration, temperature, and stirring time, resulting in a maximum yield of 54%.

Source: Materials Research Express

DOI: 10.1088/2053-1591/ada235

Authors: Ermias Abebe Negash, Belay Brehane Tesfamariam, Getinet Asrat Mengesha, Yonas Shasho, Yeabsira Sisay Mekuriya, Sena Tadesse Beyene

Institutions: Adama Science and Technology University, Changwon National University

Language: English

Topic: Recycling and utilization of industrial and municipal waste in materials production

Subfield: Building and Construction

Field: Engineering

Domain: Physical Sciences

SDG: Responsible consumption and production

Open Access status: gold

Estimated APC paid: $1,880