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首页> 外文期刊>Journal of Colloid and Interface Science >Photocatalytic performances of heterojunction catalysts of silver phosphate modified by PANI and Cr-doped SrTiO3 for organic pollutant removal from high salinity wastewater
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Photocatalytic performances of heterojunction catalysts of silver phosphate modified by PANI and Cr-doped SrTiO3 for organic pollutant removal from high salinity wastewater

机译：PANI和CR掺杂SRTIO3改性银磷酸盐杂催化催化剂的光催化性能，用于高盐度废水的有机污染物去除

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摘要

In this work, Ag3PO4/PANI/Cr:SrTiO3 photocatalysts were designed to effectively eliminate organic pollutants including Rhodamine B and phenol from high salinity wastewater under visible light. The phase composition, optical properties, and morphology of powders were studied, and the effects of inorganic salts on removal performance of the as-prepared particles were also tested. Results showed that the photocatalytic activities of Ag3PO4/PANI/Cr:SrTiO3 composites for Rhodamine B and phenol reached 100% within 10 min and 18 min, respectively. The reaction rate of pure Ag3PO4 was 7 times less than that of the ternary composite with the adding of PANI and Cr:SrTiO3. The activity of Ag3PO4/PANI/Cr:SrTiO3 remained at 92.25% after five cycles, so the photocatalytic and recyclable performance of ternary composite was greatly improved. In addition, when there was SO42- with a content of ranging from 1% to 21%, the degradation activity of the ternary catalyst under visible light was not changed for Rhodamine B, which indicated that the ternary catalyst exhibited the excellent sulfate resistance ability. Results from ESR and radical trapping experiments showed that center dot O-2(-) and h(+) made an important contribution to visible-light photocatalytic activities. (C) 2019 Elsevier Inc. All rights reserved.
机译：在这项工作中，设计了SRTIO3光催化剂，设计为有效地消除可见光下的高盐度废水的有机污染物，包括高盐水废水。研究了相组合物，光学性质和形态，并测试了无机盐对制备颗粒的去除性能的影响。结果表明，Ag3PO4 / PANI / Cr的光催化活性：Rodamine B的SRTIO3复合材料和苯酚在10分钟内达到100％，分别为18分钟。纯Ag3PO4的反应速率比加入PANI和Cr：SRTIO3的三元复合物的反应速率为7倍。 Ag3PO4 / PANI / Cr：SRTIO3的活性在五个循环后留在92.25％，因此三元复合材料的光催化和可回收性能大大提高。另外，当含量为1％至21％的情况下，当罗丹明B不改变可见光下三元催化剂的降解活性，这表明三元催化剂表现出优异的硫酸盐耐药能力。 ESR和自由基捕获实验的结果表明，中心点O-2（ - ）和H（+）对可见光光催化活动作出了重要贡献。 （c）2019 Elsevier Inc.保留所有权利。

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