Rui Xin was a visiting student at Beijing Jiaotong University. She worked in Dr. Zhang's lab for a month in July to August in 2023.At the time, she was in her second year ofundergraduate.During her stay, shereviewed paperson the electrochemical treatment of PFAS and completed the extraction experiment and data processing of PFASs in environmental samples together with Ke WANG.

Chenghan is a visiting student from East China University of Science and Technology. He worked in Dr. Zhang's lab for a month from July to August in 2023. At the time, he was in his second year of undergraduate. During his stay, he assisted Zhenhuan Chen in conducting experiments on the remediation of chlorinated organic pollutants in groundwater with thio modified nano zero valent iron, and completed a document study on the extraction of PFOA from water using ionic liquids. He proposed his own perspective on exploring which ionic liquids to use for PFOA extraction and industrial applications in the future.

Jingdan is a visiting student from Wuhan University. He worked in Dr. Zhang's lab for two months from June toAugust in 2022. At the time, he was in his second year of undergraduate.During his stay, he worked independently refining the computational chemistry workflow of Dr. Zhang's group, anoused DFT calculation and machine learning techniques to study PFASs degradation in various conditions. He is glaoto know more about coding (especially Python) and theoretical chemistry. Outside the lab, he likes music, travelingand Japanese anime.

Zhefei was a visiting student from Wuhan University. He worked in Dr. Zhang's lab for two months from July toAugust in 2021. At the time, he was in his third year of undergraduate.During his stay, he developed the extraction and analysis method of PFASs in soil samples together withXianyu Liu and learned the Gaussian software for DFT calculations with Dr. Zhang.

Yuhui was a visiting student from UC-Santa Barbara. He worked in Dr. Zhang's lab for three weeks from July toAugust in 2021 through a summer internship program. At the time, he was in his second year of undergraduateDuring his stay, he reviewed papers on fluorinated and non-fluorinated water repellents.