Morphology-Controlled Synthesis and Metalation of Porphyrin Nanoparticles with Enhanced Photocatalytic Performance

Journal Article · Mon Sep 12 00:00:00 EDT 2016 · Nano Letters

DOI:https://doi.org/10.1021/acs.nanolett.6b03135· OSTI ID:1399560

Wang, Jiefei ^[1]; Zhong, Yong ^[1]; Wang, Liang ^[1]; Zhang, Na ^[1]; Cao, Ronghui ^[1]; Bian, Kaifu ^[2]; Alarid, Leanne Julia ^[3]; Haddad, Raid E. ^[3]; Bai, Feng ^[4]; Fan, Hongyou ^[5]

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1. Henan Univ., Kaifeng (People's Republic of China); Henan Univ., Kaifeng (China)
2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
3. The Univ. of New Mexico/NSF Center for Micro-Engineered Materials, Albuquerque, NM (United States)
4. Henan Univ., Kaifeng (People's Republic of China); Henan Univ., Kaifeng (China); The Univ. of New Mexico/NSF Center for Micro-Engineered Materials, Albuquerque, NM (United States)
5. The Univ. of New Mexico/NSF Center for Micro-Engineered Materials, Albuquerque, NM (United States); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

The design and engineering of the size, shape, and chemistry of photoactive building blocks enables the fabrication of functional nanoparticles for applications in light harvesting, photocatalytic synthesis, water splitting, phototherapy, and photodegradation. Here, we report the synthesis of such nanoparticles through a surfactant-assisted interfacial self-assembly process using optically active porphyrin as a functional building block. The self-assembly process relies on specific interactions such as π–π stacking and metalation (metal atoms and ligand coordination) between individual porphyrin building blocks. Depending on the kinetic conditions and type of surfactants, resulting structures exhibit well-defined one- to three-dimensional morphologies such as nanowires, nanooctahedra, and hierarchically ordered internal architectures. Specifically, electron microscopy and X-ray diffraction results indicate that these nanoparticles exhibit stable single-crystalline and nanoporous frameworks. In conclusion, due to the hierarchical ordering of the porphyrins, the nanoparticles exhibit collective optical properties resulted from coupling of molecular porphyrins and photocatalytic activities such as photodegradation of methyl orange (MO) pollutants and hydrogen production.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES)
• Grant/Contract Number: AC04-94AL85000
• OSTI ID: 1399560
• Report Number(s): SAND-2017-8084J; 655782
• Journal Information: Nano Letters, Vol. 16, Issue 10; ISSN 1530-6984
• Publisher: American Chemical Society
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
metalation
nanocrystals
photocatalysis
Porphyrin
self-assembly