Photostable chlorophyll a conjugated with poly(vinylpyrrolidone)-smectite catalyzes photoreduction and hydrogen gas evolution by visible light

被引：41

作者：

Itoh, T

Ishii, A

Kodera, Y

Matsushima, A

Hiroto, M

Nishimura, H

Tsuzuki, T

Kamachi, T

Okura, I

Inada, Y

机构：

[1] Toin Univ Yokohama, Toin Human Sci & Technol Ctr, Dept Mat Sci & Technol, Aoba Ku, Yokohama, Kanagawa 2258502, Japan

[2] Tokyo Inst Technol, Dept Bioengn, Midori Ku, Yokohama, Kanagawa 2268501, Japan

来源：

BIOCONJUGATE CHEMISTRY | 1998年 / 9卷 / 03期

关键词：

D O I：

10.1021/bc9701656

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Chlorophyll a was adsorbed to a synthetic smectite intercalated by poly(vinylpyrrolidone) (PVP) to form the chlorophyll-PVP-smectite conjugate (Chl-PVP-SME) having an absorption maximum at 677 nm. The conjugate was found to be stable toward light illumination in comparison with chlorophyll-smectite, chlorophyll-PVP, and free chlorophyll a. Chl-PVP-SME had a photoinduced activity for catalyzing the reduction of methyl viologen. Furthermore, the evolution of hydrogen gas was observed when an aqueous suspension containing Chl-PVP-SME, methyl viologen (an electron carrier), 2-mercaptoethanol (an electron donor), and hydrogenase was illuminated by visible light.

引用

页码：409 / 412

页数：4

共 20 条

[1] INTERACTIONS OF WATER-SOLUBLE PORPHYRINS AND METALLOPORPHYRINS WITH SMECTITE CLAY SURFACES [J].