制备用于光催化降解 PPCPs(环丙沙星、四环素和布洛芬)的 TiO2/Ti3C2 负载陶瓷膜靶材

IF 6.1 2区 环境科学与生态学 Q2 ENGINEERING, ENVIRONMENTAL
Taisheng Zhao, Xiaoman Liu, Lankun Huai, Rui Feng, Tao Yan, Weiying Xu, Yanxia Zhao
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引用次数: 0

摘要

光催化膜是克服固液分离和粉末状光催化剂二次污染困难的有效策略。MXene 是层状 Ti3C2 的二维材料,被认为能限制电子-空穴分离并有助于光催化。在这项工作中,使用聚多巴胺(PDA)作为粘合剂,将蚀刻的 Ti3C2 MXene 负载到陶瓷膜表面,然后一步煅烧,在原位生成 TiO2 纳米粒子(NPs)。表征结果表明,TiO2/Ti3C2 陶瓷膜具有较高的机械强度,同时保留了 Ti3C2 的层状结构,有利于抑制电子和空穴复合,提高光催化性能。降解实验表明,该材料对环丙沙星(CIP)、四环素(TCN)和布洛芬(IBP)等药物和个人护理产品(PPCPs)的降解能力增强。LC-MS 和毒性预测模型表明,随着光催化反应时间的延长,CIP 降解产物的发育毒性降低,对鱼类无急性毒性。MT650 的水通量特性明显增强(320 升/(平方米-小时))。这项工作中探索的 TiO2/Ti3C2 陶瓷膜有望用于处理 PPCPs,具有良好的工程前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Fabrication of the TiO2/Ti3C2 loaded ceramic membrane targeting for photocatalytic degradation of PPCPs: ciprofloxacin, tetracycline, and ibuprofen

Fabrication of the TiO2/Ti3C2 loaded ceramic membrane targeting for photocatalytic degradation of PPCPs: ciprofloxacin, tetracycline, and ibuprofen

Photocatalytic membranes offer an effective strategy to overcome the difficulties of solid-liquid separation and secondary contamination of powdered photocatalysts. MXene is a 2D material of layered Ti3C2, which is considered to limit electron-hole separation and contribute to photocatalysis. In this work, the etched Ti3C2 MXene was loaded on the surface of ceramic membranes using polydopamine (PDA) as a binder, followed by one-step calcination to produce TiO2 nanoparticles (NPs) in situ. The characterizations supported that the TiO2/Ti3C2 ceramic membranes had high mechanical strength while retaining the layered structure of Ti3C2, which was conducive to the inhibition of electron and hole complexation, improving the photocatalytic performance. Degradation experiments revealed that the material showed enhanced degradation of pharmaceuticals and personal care products (PPCPs) such as ciprofloxacin (CIP), tetracycline (TCN) and ibuprofen (IBP). The LC-MS and toxicity prediction models indicated that the developmental toxicity of CIP degradation products decreased with prolonged photocatalytic reaction, exhibiting no acute toxicity to fish. The MT650 exhibited significantly enhanced water flux properties (320 L/(m2·h)). The TiO2/Ti3C2 ceramic membranes explored in this work are expected to target the treatment of PPCPs with excellent engineering promise.

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来源期刊
Frontiers of Environmental Science & Engineering
Frontiers of Environmental Science & Engineering ENGINEERING, ENVIRONMENTAL-ENVIRONMENTAL SCIENCES
CiteScore
10.90
自引率
12.50%
发文量
988
审稿时长
6.1 months
期刊介绍: Frontiers of Environmental Science & Engineering (FESE) is an international journal for researchers interested in a wide range of environmental disciplines. The journal''s aim is to advance and disseminate knowledge in all main branches of environmental science & engineering. The journal emphasizes papers in developing fields, as well as papers showing the interaction between environmental disciplines and other disciplines. FESE is a bi-monthly journal. Its peer-reviewed contents consist of a broad blend of reviews, research papers, policy analyses, short communications, and opinions. Nonscheduled “special issue” and "hot topic", including a review article followed by a couple of related research articles, are organized to publish novel contributions and breaking results on all aspects of environmental field.
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