Preparation of a novel flower-like MnO2/BiOI composite with highly enhanced adsorption and photocatalytic activity

被引：27

作者：

Liu, Suqin ^{[1
]}

Liu, Huizhen ^{[1
]}

Jin, Guanhua ^{[1
]}

Yuan, Hao ^{[1
]}

机构：

[1] Cent S Univ, Coll Chem & Chem Engn, Changsha, Hunan, Peoples R China

来源：

RSC ADVANCES | 2015年 / 5卷 / 57期

关键词：

VISIBLE-LIGHT; BIOX X; BIOI/BIOCL COMPOSITES; TEMPERATURE SYNTHESIS; EFFICIENT ADSORPTION; CATALYTIC-OXIDATION; AQUEOUS-SOLUTION; DYE POLLUTANTS; METHYL-ORANGE; IONIC LIQUID;

D O I：

10.1039/c5ra02402a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A novel flower-like MnO2/BiOI composite has been fabricated by a simple and cost-effective approach. Multiple experiments are carried out to optimize the molar ratio of MnO2/BiOI for the decomposition of methyl orange (MO) and Rhodamine B (RhB). The adsorption property of the as-prepared samples in dark conditions and the photocatalytic activity under visible light and simulated solar light irradiation are investigated in detail. When the MnO2/BiOI molar ratio is 4 : 5, the highest photocatalytic activity for degradation of MO (97.8%) and RhB (91.7%) is achieved under visible light irradiation for 40 min as well as simulated solar light irradiation (93.4% for MO and 88.2% for RhB within 40 min). The excellent photocatalytic performances are attributed to the synergistic effect of BiOI and MnO2 and the unique flower-like morphology of the MnO2/BiOI composite as verified by relative experiments.

引用

页码：45646 / 45653

页数：8

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