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| 1 | Synthesis of porous iron hydroxy phosphate from phosphate residue and its application as a Fenton-like catalyst for dye degradation显示文摘Phosphate residue is a kind of hazardous solid waste and if not properly disposed of, could cause serious environmental contaminations. The abundant iron salt available in phosphate residue can be used to prepare photo-Fenton catalytic reagent for wastewater treatment. In this study, the phosphate residue was effectively purified by a hydrothermal recrystallization method, reaching an iron phosphate purity of 94.2%. The particles of iron phosphate were further processed with ball milling with their average size reduced from 19.4 to 1.6 μm. By hydrothermal crystallization of iron phosphate and thermal decomposition of oxalate precursor, porous iron hydroxy phosphate was prepared. The modified porous iron hydroxy phosphate(m-PIHP) of higher surface area with iron oxalate on its surface can degrade 98.87% of Rhodamine B in 15 min. Cyclic experiment showed that the catalyst still had a good catalytic activity after six cycles( > 40%). The X-ray photoelectron spectroscopy results showed that the iron oxalate complex on the catalyst surface decomposed to produce ferrous ions and accelerated the rate of · OH production. The current work demonstrated that the m-PIHP synthesized from phosphate residue and modified with iron oxalate can be used as an effective dye wastewater treatment agent. | Weilin Guo Yin Cao Yi Zhang Lijun Wang Lingxue Kong | 2022 | Journal of Environmental Sciences2022，34，2： | 3 |
| 2 | 黏土基催化剂的制备及在处理难降解有机废水中的研究进展显示文摘黏土因一系列优异性能而被广泛应用于黏土基吸附剂及催化剂的制备,并用于废水中难降解有机物的降解研究。系统总结了黏土基非均相催化剂的制备方法,阐述了黏土基非均相催化剂在难降解废水处理领域的研究现状。其中黏土基非均相催化剂的分离、催化剂形貌的控制、活性组分的浸出问题、难降解有机物降解过程动力学及机理等方面的问题仍然是今后研究的重点。 | 陈敏敏 张婷 刘晋 | 2018 | 化工新型材料2018，46，9： | 1 |
| 3 | 黏土基催化剂降解环境激素类物质研究进展显示文摘环境激素类物质已成为全球性污染物质,具有潜在的危险性,其处理方法主要包括生物法、物理法和化学法。高级氧化法是化学法的一种,具有选择性低、反应速度快、处理彻底、无二次污染等特点。介绍了Fenton氧化法、光催化氧化法、臭氧氧化法、电催化氧化法等高级氧化法用黏土基催化剂降解环境激素类物质研究进展,指出了催化剂使用过程中存在的问题,对黏土基催化剂未来的研究方向进行了展望。 | 白格 张婷 钱春园 董玲玉 郭旗扬 | 2020 | 化工新型材料2020，48，10： | 0 |
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