US EPA

3859185 

Journal Article 

Facile hetero-assembly of superparamagnetic Fe3O4/BiVO4 stacked on biochar for solar photo-degradation of methyl paraben and pesticide removal from soil 

Kumar, A; Shalini; Sharma, G; Naushad, Mu; Kumar, A; Kalia, S; Guo, C; Mola, GT 

2017 

Yes 

Journal of Photochemistry and Photobiology A: Chemistry
ISSN: 1010-6030
EISSN: 1873-2666 

337 

118-131 

English 

10.1016/jjphotochem.2017.01.010 

WOS:000397376900014 

Herein we report synthesis of nano-hetero assembly of superparamagnetic Fe3O4 and bismuth vanadate stacked on Pinus roxburghii derived biochar. Optical studies and band structure analysis indicate the hybridization between the two semiconductors facilitating photodegradation of pollutants in presence of natural sunlight. The nano-heterojunctions have been utilized for removal of emerging micro-pollutants as methylparaben (MeP). 97.4% of MeP degradation was achieved in presence of biochar/Fe3O4/BiVO4 in 2 h. A degradation pathway has also been proposed on basis of mass spectrometry, chemical oxygen demand analysis and effects of various scavengers. Pinus derived biochar has also been utilized to see its long term effect on soil characteristics and fertility. The biochar has also been used to remove excessive pesticide from soil for lesser bioavailability. (C) 2017 Elsevier B.V. All rights reserved. 

Biochar; Heterjuction; Photodrgradation; Paraben; Magnetic; Pesticide