Search

Your search keyword '"Wang, Shuao"' showing total 701 results
Start Over Author "Wang, Shuao" Search Limiters Peer Reviewed Language english
701 results on '"Wang, Shuao"'

21. Efficient and selective H2O2 production through uranyl-assisted photocatalytic oxygen reduction reaction process in a uranium-organic framework.

Author

Song, Jianxin, Liang, Chao, Li, Baoyu, Wang, Xuemin, Lei, Min, Jiang, Lisha, Li, Zhenyu, Zhang, Yugang, Xie, Jian, Ma, Zuju, Dai, Xing, Wang, Yanlong, Wang, Shuao, and Liu, Wei

Abstract

Harnessing solar energy by photocatalytically converting oxygen and water into high-value-added H2O2 is a promising way of alleviating both environmental and energy issues. It is worth noting that suppressing detrimental side reactions, such as the generation of •O2−, is a critical approach to enhancing H2O2 production. Herein, a 2-fold interpenetrating 3D uranium-organic framework (YTU-W-1) was developed and introduced for photocatalytic H2O2 production. The material demonstrates a different photocatalytic mechanism when employing uranyl as an initiator, as compared with the conventional semiconductor photocatalytic pathway involving photo-generated charge carriers. Benefiting from the strong hydrogen abstraction effect of the U≡O• and the direct one-step oxygen reduction pathway, YTU-W-1 exhibits enhanced photocatalytic performance for H2O2 production with yield efficiency of 221 µmol h−1 g−1. Furthermore, YTU-W-1 displays a high H2O2 selectivity of 68%, confirmed by rotating ring-disk electrode (RRDE) measurement. DFT calculations were used to elucidate the critical role of uranyl in the photocatalytic oxygen reduction reaction for H2O2 production. This research introduces an innovative approach to photo driven H2O2 production, underscoring the potential for heterogeneous catalysts to engage in photocatalytic reactions independently of photo-generated charge carriers. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

22. A MOF@Metal Oxide Heterostructure Induced by Post‐Synthetic Gamma‐Ray Irradiation for Catalytic Reduction.

Author

Zhang, Mingxing, Chen, Junchang, Zhao, Xiaofang, Mao, Xuanzhi, Li, Chunyang, Diwu, Juan, Wu, Guozhong, Chai, Zhifang, and Wang, Shuao

Abstract

Metal‐organic framework (MOF) based heterostructures, which exhibit enhanced or unexpected functionality and properties due to synergistic effects, are typically synthesized using post‐synthetic strategies. However, several reported post‐synthetic strategies remain unsatisfactory, considering issues such as damage to the crystallinity of MOFs, presence of impure phases, and high time and energy consumption. In this work, we demonstrate for the first time a novel route for constructing MOF based heterostructures using radiation‐induced post‐synthesis, highlighting the merits of convenience, ambient conditions, large‐scale production, and notable time and energy saving. Specifically, a new HKUST‐1@Cu2O heterostructure was successfully synthesized by simply irradiating a methanol solution dispersed of HKUST‐1 with gamma ray under ambient conditions. The copper source of Cu2O was directly derived from in situ radiation etching and reduction of the parent HKUST‐1, without the use of any additional copper reagents. Significantly, the resulting HKUST‐1@Cu2O heterostructure exhibits remarkable catalytic performance, with a catalytic rate constant nearly two orders of magnitude higher than that of the parent HKUST‐1. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

23. Record High Iodate Anion Capture by a Redox‐Active Cationic Polymer Network.

Author

Guo, Qi, Li, Jie, Zhao, Yuting, Li, Lingyi, He, Linwei, Zhao, Fuqiang, Zhai, Fuwan, Zhang, Mingxing, Chen, Long, Chai, Zhifang, and Wang, Shuao

Abstract

As a critical radioactive anionic contaminant, traditional adsorbents primarily remove iodate (IO3−) through ion exchange or hard acid‐hard base interactions, but suffer from limited affinity and capacity. Herein, employing the synergistic effect of ion exchange and redox, we successfully synthesized a redox‐active cationic polymer network (SCU‐CPN‐6, [C9H10O2N5 ⋅ Cl]n) by merging guanidino groups with ion‐exchange capability and phenolic groups with redox ability via a Schiff base reaction. SCU‐CPN‐6 exhibits a groundbreaking adsorption capacity of 896 mg/g for IO3−. The inferior adsorption capacities of polymeric networks containing only redox (~0 mg/g) or ion exchange (232 mg/g) fragments underscore the synergistic "1+1>2" effect of the two mechanisms. Besides, SCU‐CPN‐6 shows excellent uptake selectivity for IO3− in the presence of high concentrations of SO42−, Cl−, and NO3−. Meanwhile, a high distribution coefficient indicates its exemplary deep‐removal performance for low IO3− concentration. The synergic strategy not only presents a breakthrough solution for the efficient removal of IO3− but also establishes a promising avenue for the design of advanced adsorbents for diverse applications. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

26. Efficient removal of uranium from the kidneys by a picolinate-based pentadentate chelator.

Author

Cao, Dehan, Chen, Bin, Xu, Yigong, Li, Zongyi, Sun, Tingfeng, Hong, Sheng, Zhu, Tianen, Chen, Lei, Li, Ximeng, Wang, Longxiang, Liu, Jiakai, Jin, Yaqi, Wang, Shuao, and Diwu, Juan

Subjects
KIDNEYS, URANIUM, GEOMETRY, LIGAND binding (Biochemistry)
Abstract

In conjunction with theoretical calculations, the in vitro and in vivo uranyl binding capabilities of a bidentate picolinate (Pic) ligand and its pentadentate derivative (H2dpa) are investigated. The planar N3O2-donor configuration of H2dpa matches the typical pentagonal-bipyramid coordination geometry of uranyl, demonstrating a remarkable removal preference for uranyl in the kidneys. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

27. Flexible interdigitated layered framework with multiple accessible active sites for high-performance CH3I capture.

Author

Tai, Bo, Li, Baoyu, He, Linwei, Ma, Zhonglin, Lin, Shujing, Zhang, Mingxing, Chen, Junchang, Wu, Fuqi, Chen, Long, Dai, Xing, Ma, Fuyin, Chai, Zhifang, and Wang, Shuao

Abstract

The development of adsorbent materials for effective capture of radioactive iodomethane (CH3I) from the off-gas of used nuclear fuel reprocessing, remains a significant and challenging line of research because currently state-of-art adsorbents still suffer from low binding affinity with CH3I. Here, we proposed a brand-new adsorption topological structure by developing a 2D interdigitated layered framework, named SCU-20, featuring slide-like channel with multiple active sites for CH3I capture. The responsive rotating-adaptive aperture of SCU-20 enables the optimal utilization of all active sites within the pore for highly selective recognition and capture of CH3I. A record-breaking CH3I uptake capacity of 1.84 g/g was achieved under static sorption conditions with saturated CH3I vapor. Both experimental and theoretical findings demonstrated that the exceptional uptake of SCU-20 towards CH3I can be attributed to the confined physical electrostatic adsorption of F sites, coupled with the chemical nitrogen methylation reaction with uncoordinated N atoms of pyrazine. Moreover, dynamic CH3I uptake capacity potentially allows for the capture of CH3I in simulated real-world off gas reprocessing conditions. This study highlights the potential of SCU-20 as a promising candidate for efficient capture of iodine species and contributes to the development of effective solutions for radioactive iodine remediation. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results