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Periodate /pəˈraɪ.ədeɪt/ is an anion composed of iodine and oxygen. It is one of a number of oxyanions of iodine and is the highest in the series, with iodine existing in oxidation state +7. Unlike other perhalogenates, such as perchlorate, it can exist in two forms: metaperiodate IO⁻₄ and orthoperiodate IO⁵⁻₆. In this regard it is comparable to the tellurate ion from the adjacent group. It can combine with a number of counter ions to form periodates, which may also be regarded as the salts of periodic acid.
A method for the degradation of phthalate contaminants using photoactivated periodate
PendingCN122079292AEfficient degradationpromote degradationWater/sewage treatment by irradiationWater contaminantsIndustrial waste waterPtru catalyst
This invention belongs to the field of wastewater treatment technology, specifically relating to a method for degrading phthalic acid ester pollutants using photo-activated periodate. The method involves adding periodate to the reaction system and applying light irradiation. Under light, periodate continuously generates various free radicals, which can attack phthalic acid esters, achieving efficient degradation. Compared with existing advanced oxidation technologies, this invention does not require high-energy ultraviolet light sources or additional catalysts. The reaction conditions are mild, energy consumption is low, and the process is simple. It is suitable for the removal of phthalic acid ester pollutants from industrial wastewater, domestic sewage, and surface water, and has promising engineering application prospects.
Owner:CHONGQING UNIV +1
An orbital-regulated α-MnO2@CNT hybrid and its effect on the selective generation of IO3 from periodate. • Applications in
This invention discloses an orbital-controlled α-MnO2@CNT hybrid and its selective generation of IO3 upon activation of periodate (PI). • Applications in [the field]. This hybrid material uses α-MnO2 nanoribbons as the active component and CNTs as the electron reservoir, and is prepared via a one-step co-precipitation method. The CNTs and α-MnO2 form an interfacial hybrid structure, which can modulate the electronic state density of the Mn 3d orbitals, shifting the Mn d-band center upwards and enhancing PI adsorption and interfacial electron transfer efficiency. When this hybrid material is added as a catalyst to water containing PI and mixed pollutants, it can selectively generate IO3-. • Main, 1 O2 is a secondary active species, enabling the simultaneous and efficient degradation of mixed pollutants, including sulfonamide antibiotics and Rhodamine B. This invention features a simple and low-cost preparation process, a catalyst with good stability and strong anti-interference ability, wide applicability, and no formation of toxic iodides, providing a new technical solution and theoretical support for the remediation of complex water bodies.
Owner:FOSHAN UNIVERSITY