malachite green from aqueous solution using magnetic β-cyclodextrin-graphene oxide nanocomposites as adsorbents. Colloids Surf A Physicochem Eng Asp. 2015;466:166-173. DOI: 10.1016/j.colsurfa.2014.11.021.
 Naseem K, Farooqi ZH, Begum R, Irfan A. Removal of congo red dye from aqueous medium by its catalytic reduction using sodium borohydride in the presence of various inorganic nano-catalysts: A review. J Clean Prod. 2018:187:296-307. DOI: 10.1016/j.jclepro.2018.03.209.
 Alver E, Bulut M, Metin AU, Çiftçi H. One step effective removal of congo red in
Vinod Vellora Thekkae Padil, Stanisław Wacławek and Miroslav Černík
] Grassian VH. Nanoscience and Nanotechnology: Environmental and Health Impacts. Wiley; 2008. DOI: 10.1002/9780470396612
 Varma RS. Greener and sustainable trends in synthesis of organics and nanomaterials. ACS Sustain Chem Eng. 2016;4:5866-5878. DOI: 10.1021/acssuschemeng.6b01623.
 Varma RS. Nano-catalysts with magnetic core: sustainable options for greener synthesis. Sustain Chem Process 2014;2:11. DOI: 10.1186/2043-7129-2-11.
 Anastas PT, Warner JC. Green Chemistry: Theory and Practice. New York: Oxford University Press; 1998.
Stanisław Wacławek, Vinod V.T. Padil and Miroslav Černík
SK. Nano-catalyst: A second generation tool for green chemistry. Green Chem. 2012:357-378. DOI: 10.1002/9781118287705.ch12.
 Chaturvedi S, Dave PN, Shah NK. Applications of nano-catalyst in new era. J Saudi Chem Soc. 2012;16:307-325. DOI: 10.1016/j.jscs.2011.01.015.
 Beller M. A personal view on homogeneous catalysis and its perspectives for the use of renewables. Eur J Lipid Sci Technol. 2008;110:789-796. DOI: 10.1002/ejlt.200800062.
 Descorme C, Gallezot P, Geantet C, George C. Heterogeneous catalysis: A key tool toward