Montmorillonite-based photoresponsive microcapsules for efficient removal of chromium

被引：1

作者：

Acheampong, Edward Opong ^{[1
]}

Wang, Ke ^{[1
]}

Lv, Rui ^{[1
]}

Lin, Sen ^{[1
]}

Sun, Shiyong ^{[1
]}

Golubev, Yevgeny Aleksandrovich ^{[2
]}

Kotova, Elena Leonidovna ^{[3
]}

Kotova, Olga Borisovna ^{[2
]}

机构：

[1] Southwest Univ Sci & Technol, Sch Environm & Resource, Key Lab Solid Waste Treatment, Resource Recycle Minist Educ, Mianyang 621010, Sichuan, Peoples R China

[2] Yushkins Inst Geol, Komi Sci Ctr, Ural Branch RAS, ul Pervomay Skaya54, Syktyvkar 167982, Russia

[3] Min State Univ St Petersburg, 21St Line, St Petersburg 199106, Russia

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2023年 / 332卷 / 09期

基金：

中国国家自然科学基金; 俄罗斯科学基金会;

关键词：

Montmorillonite; g-C3N4; Microcapsules; Chromium; Photocatalysis; CARBON NITRIDE; PHOTOCATALYTIC ACTIVITY; REDUCTION; CR(VI); TIO2; ADSORPTION; G-C3N4; WATER; LEAD; VI;

D O I：

10.1007/s10967-023-09039-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Pickering emulsion method is used to construct photo-responsive metal-free microcapsules comprising graphitic carbon nitride (g-C3N4) nanosheets dispersed in montmorillonite (Mt) colloidosomes. Morphology characterization revealed a spherical-shaped microcapsule with diameter ranges from 5 to 50 & mu;m. Cr (VI) was employed as a target contaminant to evaluate the photocatalytic performance of the microcapsules. Batch investigation showed pH 3 to be the optimal condition with a complete Cr (VI) removal. XPS analysis proved that the as-prepared microcapsule is able to reduce Cr (VI) to Cr (III).

引用

页码：3675 / 3686

页数：12

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