d="par0005">TiO2 P25/UV-A process efficiently decomposed bentazon in aqueous media.
dd><dt class="label">•dt><dd>d="par0010">21 intermediates were identified by high resolution LIT Orbitrap LC-ESI/MS.
dd><dt class="label">•dt><dd>d="par0015">Novel bentazon transformation pathways are proposed.
dd><dt class="label">•dt><dd>d="par0020">Ecotoxicity and phytotoxicity were eliminated by TiO2/UV-A process.
dd>dl>