Construction of Bi-Zr Bimetallic MOF for Adsorption and Photocatalytic Degradation Toward DCF

IF 3.8 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Water, Air, & Soil Pollution Pub Date : 2024-06-24 DOI:10.1007/s11270-024-07261-8

Xiaohui He, Liping Yang, Chun Chang

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Abstract

The mass production and widespread use of pharmaceuticals and personal care products (PPCPs) posed a great threat to the water environment and human health. In this paper, a green plant-based Bi-Zr bimetallic MOF SU-101.2 was prepared, and the adsorption characteristics were studied with typical PPCPs-Diclofenac sodium (DCF). Compared to SU-101 and SU-102, SU-101.2 showed a significant increase in the adsorption rate of DCF. The adsorption mechanisms between SU-101.2 and DCF were mainly electrostatic interactions, hydrogen bonding and π-π interactions. Moreover, SU-101.2 also had considerable photocatalytic properties, which was applied to the subsequent treatment of adsorbent desorption, effectively solving the problem of secondary pollution and achieving a green sustainable adsorption and degradation cycle. In all, this work presented an effective adsorbent and a sustainable approach for DCF elimination, which could replace traditional chemical desorption and regenerate the adsorbent via a photocatalytic process.

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构建用于吸附和光催化降解 DCF 的双锌双金属 MOF

药品和个人护理品（PPCPs）的大量生产和广泛使用对水环境和人类健康构成了巨大威胁。本文制备了一种绿色植物基 Bi-Zr 双金属 MOF SU-101.2，并研究了其对典型 PPCPs-双氯芬酸钠（DCF）的吸附特性。与 SU-101 和 SU-102 相比，SU-101.2 对 DCF 的吸附率明显提高。SU-101.2 与 DCF 的吸附机理主要是静电作用、氢键作用和 π-π 作用。此外，SU-101.2 还具有相当的光催化性能，将其应用于吸附剂解吸的后续处理，可有效解决二次污染问题，实现绿色可持续的吸附降解循环。总之，该研究提出了一种有效的吸附剂和可持续的消除 DCF 的方法，可取代传统的化学解吸法，并通过光催化过程使吸附剂再生。

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来源期刊

Water, Air, & Soil Pollution 环境科学-环境科学

CiteScore

4.50

自引率

6.90%

发文量

448

审稿时长

2.6 months

期刊介绍： Water, Air, & Soil Pollution is an international, interdisciplinary journal on all aspects of pollution and solutions to pollution in the biosphere. This includes chemical, physical and biological processes affecting flora, fauna, water, air and soil in relation to environmental pollution. Because of its scope, the subject areas are diverse and include all aspects of pollution sources, transport, deposition, accumulation, acid precipitation, atmospheric pollution, metals, aquatic pollution including marine pollution and ground water, waste water, pesticides, soil pollution, sewage, sediment pollution, forestry pollution, effects of pollutants on humans, vegetation, fish, aquatic species, micro-organisms, and animals, environmental and molecular toxicology applied to pollution research, biosensors, global and climate change, ecological implications of pollution and pollution models. Water, Air, & Soil Pollution also publishes manuscripts on novel methods used in the study of environmental pollutants, environmental toxicology, environmental biology, novel environmental engineering related to pollution, biodiversity as influenced by pollution, novel environmental biotechnology as applied to pollution (e.g. bioremediation), environmental modelling and biorestoration of polluted environments. Articles should not be submitted that are of local interest only and do not advance international knowledge in environmental pollution and solutions to pollution. Articles that simply replicate known knowledge or techniques while researching a local pollution problem will normally be rejected without review. Submitted articles must have up-to-date references, employ the correct experimental replication and statistical analysis, where needed and contain a significant contribution to new knowledge. The publishing and editorial team sincerely appreciate your cooperation. Water, Air, & Soil Pollution publishes research papers; review articles; mini-reviews; and book reviews.