Morphology Controlled Synthesis of SnS2 Nanomaterial for Promoting Photocatalytic Reduction of Aqueous Cr(VI) under Visible Light

被引：176

作者：

Mondal, Chanchal ^{[1
]}

Ganguly, Mainak ^{[1
]}

Pal, Jaya ^{[1
]}

Roy, Anindita ^{[1
]}

Jana, Jayasmita ^{[1
]}

Pal, Tarasankar ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem, Kharagpur 721302, W Bengal, India

来源：

LANGMUIR | 2014年 / 30卷 / 14期

关键词：

HIGH-PERFORMANCE; HYDROTHERMAL SYNTHESIS; REMOVAL; NANOCOMPOSITES; NANOPARTICLES; DEGRADATION; FABRICATION; EVOLUTION; OXIDATION;

D O I：

10.1021/la500509c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A mild, template free protocol has been demonstrated for SnS2 nanoflake formation at the gram level from SnCl2 and thioacetamide (TAA). The SnS2 nanoflakes congregate to nanoflowers and nanoyarns with variable TAA concentrations. BET measurements reveal that the synthesized nanomaterials are highly porous having very high surface area, and the nanoflower has higher surface area than the nanoyarn. The synthesized nanomaterial finds application for promoting photoreduction of extremely toxic and lethal Cr(VI) under visible light irradiation due to their porous nature. The nanoflowers photocatalyst is proved to be superior to nanoyarn due to the increased surface area and higher pore volume. It was also inferred that increased pH decreased the reaction rate. The present result suggests that the morphology-dependent photoreduction of Cr(VI) by SnS2 nanomaterial under visible light exposure will endorse a new technique for harvesting energy and purification of wastewater.

引用

页码：4157 / 4164

页数：8

共 36 条

[1] Evolution of Hierarchical Hexagonal Stacked Plates of CuS from Liquid-Liquid Interface and its Photocatalytic Application for Oxidative Degradation of Different Dyes under Indoor Lighting [J].

Basu, Mrinmoyee ;

Sinha, Arun Kumar ;

Pradhan, Mukul ;

Sarkar, Sougata ;

Negishi, Yuichi ;

Govind ;

Pal, Tarasankar .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2010, 44 (16) :6313-6318

[2] Enhanced removal of Cr(VI) from aqueous solution using polypyrrole/Fe3O4 magnetic nanocomposite [J].

Bhaumik, Madhumita ;

Maity, Arjun ;

Srinivasu, V. V. ;

Onyango, Maurice S. .

JOURNAL OF HAZARDOUS MATERIALS, 2011, 190 (1-3) :381-390

[3] Microwave-assisted polyol synthesis of nanoscale SnSx(x=1,2) flakes [J].

Chen, D ;

Shen, GZ ;

Tang, KB ;

Lei, SJ ;

Zheng, HG ;

Qian, YT .

JOURNAL OF CRYSTAL GROWTH, 2004, 260 (3-4) :469-474

[4] Low-cost SnSx counter electrodes for dye-sensitized solar cells [J].

Chen, Xiao ;

Hou, Yu ;

Zhang, Bo ;

Yang, Xiao Hua ;

Yang, Hua Gui .

CHEMICAL COMMUNICATIONS, 2013, 49 (51) :5793-5795

[5] Removal of toxic Cr(VI) by UV-active functionalized graphene oxide for water purification [J].

Dinda, Diptiman ;

Gupta, Abhisek ;

Saha, Shyamal Kumar .

JOURNAL OF MATERIALS CHEMISTRY A, 2013, 1 (37) :11221-11228

[6] Enhanced microbial reduction of Cr(VI) and U(VI) by different natural organic matter fractions [J].

Gu, BH ;

Chen, J .

GEOCHIMICA ET COSMOCHIMICA ACTA, 2003, 67 (19) :3575-3582

[7] Magnetic polyaniline nanocomposites toward toxic hexavalent chromium removal [J].

Gu, Hongbo ;

Rapole, Sowjanya B. ;

Sharma, Jaishri ;

Huang, Yudong ;

Cao, Dongmei ;

Colorado, Henry A. ;

Luo, Zhiping ;

Haldolaarachchige, Neel ;

Young, David P. ;

Walters, Bryan ;

Wei, Suying ;

Guo, Zhanhu .

RSC ADVANCES, 2012, 2 (29) :11007-11018

[8] Photocatalytic Reduction of Cr(VI) in an Aqueous Suspension of Surface-Fluorinated Anatase TiO2 Nanosheets with Exposed {001} Facets [J].

He, Zhiqiao ;

Cai, Qiaolan ;

Wu, Ming ;

Shi, Yuanqiao ;

Fang, Huiying ;

Li, Lingdan ;

Chen, Jiancheng ;

Chen, Jianmeng ;

Song, Shuang .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2013, 52 (28) :9556-9565

[9] Synthesis of SnS2/SnS fullerene-like nanoparticles:: A superlattice with polyhedral shape [J].

Hong, SY ;

Popovitz-Biro, R ;

Prior, Y ;

Tenne, R .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (34) :10470-10474

[10] Photocatalyfic reduction of Cr(VI) in the presence of NO3- and Cl- electrolytes as influenced by Fe(III) [J].

Hsu, Chia-Lian ;

Wang, Shan-Li ;

Tzou, Yu-Min .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2007, 41 (22) :7907-7914

← 1 2 3 4 →