Dual-Action κ‑Carrageenan: A Novel Capping Agent and Dopant Source for Enhanced Photocatalytic ZnO Nanoparticles in Azo Dye and Cr(VI) Degradation - Dan Michael A. Asequia; Daisy Jane D. Erjeno; Carlo Kurt F. Osorio; Christine Joy M. Omisol; Renzo Miguel Hisona; Blessy Joy M. Aguinid; Sitti Zayda B. Halun; Joshua B. Zoleta; Roberto M. Malaluan; Arnold C. Alguno; Arnold A. Lubguban (ACS Omega)