Multifactor-Regulated Fast Synthesis of alpha-Zirconium Phosphate Nanocrystals Towards Highly Efficient Adsorption of Pesticides
Multifactor-Regulated Fast Synthesis of alpha-Zirconium Phosphate Nanocrystals Towards Highly Efficient Adsorption of Pesticides
复制标题
多因素调控快速合成α-磷酸锆纳米晶实现高效吸附农药
DOI：
10.1007/s10853-020-05202-4
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发表时间：
2021
影响因子：
4.5
通讯作者：
Chen Ying
中科院分区：
文献类型：
--
作者：
Yu Weitai;Zhao Yue;Shen Jiangrong;Lin Pengcheng;Lu Xiang;Chen Ying
摘要α-磷酸锆（α-ZrP）纳米晶体具有表面活性基团和层状结构，已广泛应用于放射性核素去除、质子导体、化学传感器、阻燃和耐腐蚀材料等领域。以往α-ZrP纳米晶的合成耗时长，且缺乏可控性。为实现高质量α-ZrP纳米晶的快速可控制备，提出了微波反应器中多因素调控的快速合成策略。与传统水热合成相比，反应时间由24 h缩短至15 min。通过调节反应参数可以控制结晶程度、形貌、横向尺寸和厚度。结果表明，所制得的α-ZrP纳米晶具有良好的结晶度、片状形貌、丰富的活性官能团、优异的热稳定性和可剥离的层状结构。此外，微波辅助多因子调控法制备的α-ZrP纳米晶作为环境友好型载体，其粒径更小，暴露的吸附位点更多，比传统水热法制备的α-ZrP纳米晶具有更好的农药吸附效率。展望微波反应器中多因子调控合成为高质量纳米晶体的合成提供了一种高效、节能的替代方法，并拓宽了其在化学工程中的应用。图形抽象
Abstractα-zirconium phosphate (α-ZrP) nanocrystals with surface active groups and layered structure have been widely used in radionuclide removal, proton conductors, chemical sensors, flame retardant and corrosion-resistant materials. The previous synthesis of α-ZrP nanocrystals is time-consuming and lack of controllability. Herein, a multifactor-regulated fast synthesis strategy in a microwave reactor is proposed to realize the fast and controllable production of the high-quality α-ZrP nanocrystals. Compared with the conventional hydrothermal synthesis, the reaction time has been reduced from 24 h to 15 min. The degree of crystallinity, the morphology, the lateral size and the thickness can be controlled by adjusting the reaction parameters. Results demonstrate that the obtained α-ZrP nanocrystals possess good crystallinity, disk morphology, abundant active functional groups, superior thermal stability and strippable layered structure. Furthermore, the α-ZrP nanocrystals synthesized by the microwave-assisted multifactor-regulated method as environmentally friendly carriers possess better pesticide adsorption efficiency than those synthesized by the conventional hydrothermal synthesis as the result of the smaller size and more exposed adsorption sites. It is envisioned that the multifactor-regulated synthesis in a microwave reactor provides a more efficient and energy-saving alternative to synthesize high-quality nanocrystals and broaden their application in chemical engineering.Graphic abstract