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首页> 外文期刊>RSC Advances >Photoactive, antimicrobial CeO2 decorated AlOOH/PEI hybrid nanocomposite: a multifunctional catalytic-sorbent for lignin and organic dye
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Photoactive, antimicrobial CeO2 decorated AlOOH/PEI hybrid nanocomposite: a multifunctional catalytic-sorbent for lignin and organic dye

机译：光活性，抗菌CEO2装饰ALOOH / PEI杂交纳米复合材料：用于木质素和有机染料的多功能催化吸附剂

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摘要

In this study an amine functionalized, mesoporous monohydroxy aluminium oxide (AlOOH/PEI) hybrid is prepared and further catalytically engineered with nano-CeO2 to make a multifunctional photoactive and antimicrobial catalytic-sorbent (CeO2@AlOOH/PEI). Structural and physico-chemical properties of this catalytic-sorbent were characterized using powder XRD, FTIR, SEM, TEM, N-2 sorption analysis, TGA and zeta-potential measurements. This hybrid catalytic-sorbent is explored for the treatment of industrial waste water contaminated with lignin and organic dye. A comparative study was also done with other known conventional sorbents and the developed CeO2@AlOOH/PEI catalytic-sorbent shows a better adsorption capacity towards lignin. Photodegradation of lignin and methyl orange dye using the CeO2@AlOOH/PEI hybrid nanocomposite was also investigated under sunlight and UV irradiation. Both the pollutants show a better photodegradation under UV. Above all, the antibacterial properties of the CeO2@AlOOH/PEI sorbent were also studied against both Gram-positive (S. aureus) and Gram-negative (E. coli, K. pneumoniae) bacteria and showed efficient antimicrobial activity against these tested bacteria. An eco-friendly, self-regenerative, sustainable CeO2@AlOOH/PEI catalytic sorbent is designed and validated for the recovery of water resources from lignin and dye contaminated industrial effluent.
机译：在这项研究中，制备胺官能化，中孔单羟基氧化铝（AlOOH / PEI）杂种并进一步催化地用纳米CeO 2制成，以制备多功能光活性和抗微生物催化 - 吸附剂（CeO2 @ Alooh / Pei）。使用粉末XRD，FTIR，SEM，TEM，N-2吸附分析，TGA和Zeta-潜在测量来表征该催化吸附剂的结构和物理化学性质。该杂种催化吸附剂探讨了用木质素和有机染料污染的工业废水处理。其他已知的常规吸附剂还进行了对比研究，并且发达的CEO2 @ ALOOH / PEI催化 - 吸附剂显示出对木质素的更好的吸附能力。在阳光和紫外线照射下，还研究了CeO2 @ Alooh / PEI杂交纳米复合材料的木质素和甲基橙染料的光降解。污染物在紫外线下都显示出更好的光降解。最重要的是，还研究了CeO2 @ Alooh / Pei吸附剂的抗菌性质，用于针对革兰阳性（金黄色葡萄球菌）和革兰氏阴性（大肠杆菌，K.Pneumoniae）细菌，并针对这些测试的细菌显示出有效的抗微生物活性。设计和验证了生态友好的自我再生的可持续的CEO2 @ ALOOH / PEI催化吸附剂，用于从木质素和染料污染的工业流出物中恢复水资源。

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