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Nanocrystalline Titania Coated Metakaolin and Rice Hull Ash Based Geopolymer Spheres for Photocatalytic Degradation of Dyes in Wastewater

journal contribution
posted on 2025-04-13, 23:07 authored by Patricia Isabel Bravo, Eiza Shimizu, Roy MalenabRoy Malenab, April Anne Tigue, Kimmie Mae Dela Cerna, Jose Isagani Janairo, Michael Angelo Promentilla, Derrick Ethelbhert Yu
Geopolymer spheres made from metakaolin and rice hull ash have exceptional chemical and mechanical stability, making them promising catalyst support matrix for photoactive compounds. In this paper, titania was deposited on geopolymer sphere via horizontal vapor phase growth method, which produced nanotitania crystals embedded on the surface. The titania-coated geopolymer spheres resulted in 90% dye photodegradation activity that can be used repeatedly, thus qualifying the products as sustainable materials for wastewater treatment.

History

Journal

Oriental Journal of Chemistry

Volume

35

Pagination

167-172

Location

Madhya Pradesh, India

Open access

  • Yes

ISSN

0970-020X

eISSN

2231-5039

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Issue

1

Publisher

Oriental Scientific Publishing Company