Reductive Dehalogenation of Monobromo- and Tribromoacetic Acid by Sodium Borohydride Catalyzed by Gold Nanoparticles Entrapped in Sol-Gel Matrices Follows Different Pathways

被引：29

作者：

Adhikary, Jaydeep ^{[1
]}

Meistelman, Michael ^{[2
]}

Burg, Ariela ^{[3
]}

Shamir, Dror ^{[4
]}

Meyerstein, Dan ^{[1
,5
]}

Albo, Yael ^{[2
]}

机构：

[1] Ariel Univ, Dept Chem Sci, Ariel, Israel

[2] Ariel Univ, Dept Chem Engn, Ariel, Israel

[3] Sami Shamoon Coll Engn, Dept Chem Engn, Beer Sheva, Israel

[4] Nucl Res Ctr Negev, Dept Chem, Beer Sheva, Israel

[5] Ben Gurion Univ Negev, Dept Chem, Beer Sheva, Israel

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2017年 / 11期

关键词：

Sol-gel processes; Gold; Nanoparticles; Dehalogenation; Radicals; DISINFECTION BY-PRODUCTS; HALOACETIC ACIDS; CHLOROACETIC ACIDS; OXIDATION REACTION; HYDROGEN-PEROXIDE; WATER; EFFICIENT; AU; ELECTRODE; REMOVAL;

D O I：

10.1002/ejic.201700069

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

An efficient, green, and reusable system comprising gold nanoparticles entrapped in an organically modified sol-gel silica matrix was found to catalyze the reduction of monobromo- and tribromoacetic acid by NaBH4. Interestingly, the reduction of tribromoacetic acid yielded succinic acid along with acetic acid, whereas monobromoacetic acid was reduced only to acetic acid. The relative yields of succinic acid and acetic acid depended on the rate of addition of BH4-. Slow addition resulted in the formation of succinic acid as the major product. A variable product distribution was achieved as a result of the different pathways for dehalogenation.

引用

页码：1510 / 1515

页数：6

共 49 条

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