Photoactive and self-sustaining: How soil organic matter drives the natural remediation of Cr(VI) via photochemical pathways at the soil-water interface - Yaoning Chen; Mengwei Luo; Yuanping Li; Jun Wang; Hongjuan Jiang; Mengyang Zhao; Yaoqin Nie; Bin Zou; Qianruyu Wang; Nianping Chi (Water Research, 2026)